Find your next tech and IT Job or contract Java Developer (Kotlin, Groovy...) in United Kingdom

Mobile Backend Developer (JAVA/Kotlin) 6 Month contract initially Based: Manchester - Max 3 days Onsite Rate: £Market rates (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Mobile Backend Developer (JAVA/Kotlin) to join the team. Seeking a Senior Application Engineer ( Backend cloud based application development) with deep technical expertise and thought leadership. You will drive strategy for your area of expertise across teams and foster a developer community within your domain. The role involves mentoring junior staff, ensuring high-quality deliverables, promoting best practices like TDD and BDD, and leading engineering practices across the SDLC. Key Responsibilities: * Provide advanced technical expertise in Backend Development, supporting the team with effective solutions and practical insights. * Participate in all phases of the Software Development Life Cycle (SDLC), including requirements gathering, development, deployment, and ongoing maintenance. * Demonstrate a commitment to keeping up with industry trends, emerging technologies, and best practices, actively applying them in your work. * Contribute new ideas, tools, and methodologies to help foster a culture of continuous improvement and innovation within the team. * Share knowledge and mentor peers and junior engineers, supporting their growth and skills development. * Collaborate with technical leads, IT teams, and business stakeholders to understand project requirements, implications, and dependencies. * Review and provide feedback on technical documentation, suggesting improvements where appropriate. * Promote and practice best development approaches such as Test-Driven Development (TDD) and Behavior-Driven Development (BDD) to deliver high-quality, maintainable code. * Apply design patterns to address complex problems, ensuring code is efficient, readable, and reusable. * Adhere to IT and Information Security policies and procedures in all engineering activities. Key Skills & Experience: * Preferred - Experience of building distributed scalable microservices using Java/Kotlin, Spring Boot, OAuth 2.0, Secure API design * Understanding of API design for mobile application with event driven architecture * Strong analysis and problem-solving skills * Knowledge of the financial services industry * Other technologies/areas: AWS, API Design, Automation testing This is an excellent opportunity on a great project of work, If you are looking for your next exciting opportunity, apply now for your CV to reach me directly, we will respond as soon as possible. LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds. Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.

Kotlin Developer Our client is looking for a software developer with experience of Kotlin. You will have Extensive experience in implementing server-side application development, maintenance and Enhancement using Kotlin and Ktor Framework. Technical skills include: Kotlin, Ktor framework, AWS integration, Postgres databases, Gradle build tool. Responsibilities: * Responsible to implement, maintain and enhance application. * Responsible to perform end to end architecture and design. * Responsible to fine tune performance, deliver quality code and develop test case automation. The role is based on a hybrid working model, 2 days onsite in London and 3 days from home each week. The contract is for 3 months initially outside IR35. To be considered please send your latest CV LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds. Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.

As a Java Developer you will be a key member of Development Guild within CDIO B&T Engineering team where part of your main task will be developing, designing and providing maintenance support of software products that meet our clients need by closely working in collaboration with other delivery groups and stakeholders throughout IT service development and delivery life cycles. Responsibilities Your responsibilities will include: Proposing, designing and building complex program solutions from supplied requirement specifications. Defining the software modules that comprise an integration build. Producing a build definition for generation of the software. Collaborating with other stakeholders in reviewing supplied requirement specifications. Managing competing priorities and documenting deliverables in accordance with agreed standards. Designing, implementing and operating controls and management strategies to maintain the security, confidentiality and integrity of information systems. Reporting task outcomes to stakeholders in a clear and concise manner. Support and maintenance of live services developed on legacy and/or modern technologies. Planning, designing and conducting tests of programs to deliver error-free systems. Coaching, mentoring and/or line management of junior colleagues. The post holder will work normal office hours and during the first three months they might be required to occasionally attend the office outside of normal working hours (e.g. to support software releases) and/or shadow a colleague already providing on-call support on an ad-hoc basis. On completion of 3 months in post, the post holder might then be required to provide part of a 24/7 on-call Rota.

**INSIDE IR35 £284 P/D, 2 DAYS ONSITE IN GLASGOW** * Technical Troubleshooting * Continuous Learning Software * Design Strategic Thinking * Change and Transformation * Digital and Technology * Computer Programming Teamwork * Secure Coding Practices * Test Automation Communication * Business Acumen Problem Solving * Tools Risk and Controls Additional Information for role: To be successful as an AVP Java developer, you should have experience with: * Core Java development * Test-driven development * Linux Scripting * Reviewing of other people's and AI-generated code * data engineering project Some other highly valued skills may include: * AI Prompt Engineering for code generation * Docker / Kubernetes * Hadoop (HDFS, HBase, Kafka, Spark etc) LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds. Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.

Java Developer Knutsford with Hybrid working £330 inside IR35 per day Required Skills and Experience: - Strong proficiency in Core Java programming with at least 5+ years of hands-on development experience - Extensive experience with Spring Framework (Spring Boot, Spring MVC, Spring Security) - Solid understanding of ORM frameworks, particularly Hibernate - Experience working with relational databases (MySQL, PostgreSQL, Oracle, etc.) - Familiarity with CI/CD pipelines and tools, specifically GitLab CI - Demonstrated experience in production support environments, including L3 support and troubleshooting production issues - Ability to analyze and resolve complex technical problems in live environments - Experience with version control systems (Git) ## Highly Valued Additional Skills: - Experience with AI-powered coding tools such as GitLab Duo, GitHub Copilot, or similar AI coding assistants - Knowledge of microservices architecture and RESTful API design - Experience with containerization technologies (Docker, Kubernetes) - Understanding of agile development methodologies - Experience with test-driven development and automated testing frameworks ## Responsibilities: - Design, develop, and maintain Java-based applications using Spring and Hibernate - Collaborate with cross-functional teams to define, design, and ship new features - Optimize application performance and scalability - Troubleshoot and resolve production issues as part of L3 support rotation - Participate in code reviews and contribute to technical documentation - Implement and maintain CI/CD pipelines using GitLab - Ensure code quality, reliability, and security through best practices ## Qualifications: - Bachelor's degree in Computer Science, Engineering, or related field (or equivalent practical experience) - Strong problem-solving skills and attention to detail - Excellent communication and teamwork abilities LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds. Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.

At CGI, you’ll play a key role in shaping mission-critical technology that supports some of the UK’s most important national functions. Joining our HOMBRE team, you will help deliver intelligent, event-driven solutions that improve decision-making across government, empowering teams with accurate, real-time insight. You’ll work in a collaborative environment where you can take ownership of meaningful challenges, contribute creative ideas to modern engineering approaches, and be supported by a community that values your growth. This is an opportunity to influence high-impact digital services, evolve complex rule-based systems, and build solutions that make a measurable difference across the Home Office landscape. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to either hold, or be willing and eligible to undergo, UK Security Clearance. This is a hybrid position.

At CGI, we’re shaping the future of digital transformation — empowering clients to unlock new possibilities through robust, scalable, and secure software solutions. As a Senior Java Developer, you’ll play a pivotal role in driving innovation and ensuring seamless integration across complex systems that power large-scale programmes. You’ll work within an open, collaborative culture where you can influence design decisions, mentor others, and see your ideas brought to life. This is an opportunity to contribute to mission-critical outcomes while being part of a team that values creativity, accountability, and continual learning. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to either hold or be eligible for UK Security Clearance. This is a mainly remote position, with occasional travel as required.

Seeking D365 Developers Specific experience required on the CE and CRM modules with azure/ azure cloud also necessary. Outside of IR35 and largely remote LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds. Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.

Oracle Developer Spalding - Hybrid (1 day a week on-site) £50,000 - £60,000 + Bonus + Training + Hybrid This is an excellent opportunity for an Oracle Developer who has a strong understanding of PL/SQL and Fusion Cloud to join a business at an exciting time of growth. This role offers a varied and interesting position where you will have freedom to work on bespoke projects. This company are a leading digital consultancy, renowned for delivering IT solutions that are tailored to unique business requirements. They cover a range of areas from CRM systems to e-commerce platforms, delivering high-quality, reliable software. In this varied role you will be responsible for developing Oracle applications, collaborating with business stakeholders to translate requirements into technical specifications. Equally, you will implement and customise Oracle solutions using OAF, Reports, and BI Publisher, ensuring seamless integration and optimal performance. Lastly, you will provide ongoing technical support to customers and participate in testing & validation to maintain quality standards. The ideal candidate will have a proven track record in Oracle application development where you can demonstrate expertise in PL/SQL and Oracle Fusion Cloud. Equally, showing clear knowledge of Oracle Integration Cloud and OAF is beneficial to the position and it would be desirable to have previous experience with Oracle SOA Suite. Lastly, familiarity with Agile development and Oracle qualifications are not essential but would be desired. This is a fantastic opportunity for an Oracle Developer looking for a role that will involve a variety of different tasks and brings the opportunity to work within a business that heavily invests in training for its staff. The Role: Develop and maintain Oracle applications Translate business requirements into technical specifications Implement and customise Oracle solutions Provide technical support and quality assurance The Person: Proven track record in Oracle application development Knowledge of CX Sales. Expertise in PL/SQL and Oracle Fusion Cloud Knowledge of Oracle Integration Cloud and OAF Familiarity with Agile development and Oracle certifications (desirable) Reference Number: BBBH267017 To apply for this role or for to be considered for further roles, please click "Apply Now" or contact Tom McLaughlin at Rise Technical Recruitment This vacancy is being advertised by Rise Technical Recruitment Ltd. The services of Rise Technical Recruitment Ltd are that of an Employment Agency Rise Technical Recruitment Ltd regrets to inform that our client can only accept applications from engineering candidates who have a valid legal permit or right to work in the United Kingdom. Potential candidates who do not have this right or permit, or are pending an application to obtain this right or permit should not apply as your details will not be processed.

We have a current opportunity for a Rust Developer on a permanent basis. The position will be based in London. For further information about this position please apply. Role Overview: Top Tier Hedge Fund is looking for a skilled engineer with experience in Rust to join a Options HFT engineering team. You will be integral to enhancing our low-latency options trading systems and supporting our advanced trading infrastructure. As a Rust Engineer, you will have the opportunity to work in a dynamic, fast-paced environment, where you'll contribute to the continuous improvement of our systems. Our ideal candidate is willing to become an expert in Rust and has a pragmatic approach to solving complex problems. Key Responsibilities: Specialize in low-latency options HFT trading. Collaborate within a wider engineering team to support the trading infrastructure. Solve complex problems with innovative solutions, ensuring system reliability and scalability. Required Experience and Skills: Strong background in trading environments. Proficient in Rust Experience with SQL databases. Familiarity with functional and component testing. Experience in crypto exchange connectivity and/or FPGA technologies is a plus. Knowledge of gRPC and Node.js interaction is strongly preferred. Experience in High-Frequency Options Trading or low-latency options systems is advantageous but not required. Competencies and Personal Traits: Pragmatic problem solver with an innovative mindset. Strong communication skills, particularly in ambiguous situations. Collaborative, with a passion for building scalable, high-performance systems To find out more about Huxley, please visit Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales

Umbraco Developer Spalding, Lincolnshire (Office-based) £Competitive Salary DOE + Holiday + Pension This is an excellent opportunity for an experienced and highly proficient Umbraco Developer to join a business at an exciting time of growth. This role offers a varied and interesting position where you will have freedom to work on bespoke projects. This company is a digital transformation company specialising in bespoke software development, legacy system support, and enterprise applications for a diverse range of clients. In this varied role you will design, develop, and maintain Umbraco-based web applications, implement clean and scalable code using .NET and C#, integrate REST APIs, while contributing to planning and code reviews, and ensure adherence to security standards using Git-based workflows and CI/CD. The ideal candidate will have previous commercial Umbraco CMS experience (including custom back-end development), strong proficiency in .NET (C#) MVC and a solid awareness of secure coding standards. Experience with SQL databases, RESTful services and Git is also required. This is a fantastic opportunity for an Umbraco Developer looking for a role that will involve a variety of different tasks and brings the opportunity to work within a business that heavily invests in training for its staff. The Role Design and maintain Umbraco web applications and services. Implement secure and scalable code. Ensure security by adhering to security standards. Use Git workflows and CI/CD in an agile environment. The Person Previous commercial experience with Umbraco CMS (custom back-end). Strong proficiency in .NET (C#) MVC and modern development. Experience with SQL, REST APIs, Git, ADO, and quality tools like SonarQube. Able to commute to Spalding 5 days a week. Reference Number: BBBH266585 To apply for this role or for to be considered for further roles, please click "Apply Now" or contact Tom McLaughlin at Rise Technical Recruitment This vacancy is being advertised by Rise Technical Recruitment Ltd. The services of Rise Technical Recruitment Ltd are that of an Employment Agency Rise Technical Recruitment Ltd regrets to inform that our client can only accept applications from engineering candidates who have a valid legal permit or right to work in the United Kingdom. Potential candidates who do not have this right or permit, or are pending an application to obtain this right or permit should not apply as your details will not be processed.

Exciting Opportunity: Salesforce Developer Are you an experienced Salesforce Developer looking to take your career to the next level? Our client is seeking a talented and driven individual to become an integral part of their innovative team in London. This permanent position offers a chance to work more independently owning the development process, getting involved in exciting projects and maintaining a customer portal. Key Skills and Experience Around 4-5 years within the Salesforce ecosystem Proficiency in Sales, Service, and Experience Clouds, (SFMC desirable). Strong expertise in Apex classes, triggers, Lightning Web Components (LWC), and Visualforce pages. Hands-on experience with REST and SOAP API integrations. Familiarity with BAU tasks like configuration and flows. Ability to work more independently. What's on Offer? £60,000 - £70,000 per year (subject to experience). Hybrid arrangement - 1 day a week in London. 26 days annual leave. Private medical insurance. Discretionary bonus. If you're interested, please apply! No sponsorship provided! To find out more about Computer Futures please visit Computer Futures, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales

As a Senior Java Developer at CGI, you’ll design and deliver robust, high-performing software solutions that help clients solve complex business challenges. You’ll play a leading role in building scalable, enterprise-grade applications using Java and Spring Boot, shaping technology outcomes that drive lasting impact. Working within a collaborative and Agile environment, you’ll guide and mentor others while applying your expertise to deliver projects that transform industries. You’ll be part of a culture that values ownership, creativity, and support, where your technical skills and ideas will help clients achieve meaningful results and where your career can grow in any direction you choose. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance.

React Native Developer Spalding, Lincolnshire - 2 days on-site £Competitive + Hybrid Working + Development Opportunities This is an excellent opportunity for an experienced React Native Developer to join a business at an exciting time of growth. This role offers a varied and interesting position where you will have the freedom to work on bespoke mobile applications. This company is a digital transformation company specialising in bespoke software development, legacy system support, and enterprise applications for a diverse range of clients. In this varied role you will design, develop, and maintain cross-platform mobile applications using React Native, implement clean and scalable code using TypeScript and JavaScript, integrate REST APIs and native modules, while contributing to planning and code reviews, and ensure adherence to security standards using Git-based workflows and CI/CD. The ideal candidate will have previous commercial React Native experience, strong proficiency in TypeScript/JavaScript and a solid awareness of secure coding standards. Experience with mobile state management, RESTful services, and Git is also required. Knowledge of front-end technologies such as HTML and CSS is beneficial. This is a fantastic opportunity for a React Native Developer looking for a role that will involve a variety of different tasks and brings the opportunity to work within a business that heavily invests in training for its staff. The Role Design and maintain cross-platform mobile applications using React Native. Implement secure and scalable code using TypeScript/JavaScript. Ensure security by adhering to mobile security standards and best practices. Use Git workflows and CI/CD in an agile environment. Integrate with third-party and custom REST APIs. The Person Previous commercial experience with React Native. Strong proficiency in TypeScript, JavaScript, and modern development practices. Experience with mobile state management (e.g., Redux, MobX), REST APIs, Git. Beneficial to have knowledge of HTML and CSS. Able to commute to Spalding 2 days a week Reference Number: BBBH266752 To apply for this role or for to be considered for further roles, please click "Apply Now" or contact Tom McLaughlin at Rise Technical Recruitment This vacancy is being advertised by Rise Technical Recruitment Ltd. The services of Rise Technical Recruitment Ltd are that of an Employment Agency Rise Technical Recruitment Ltd regrets to inform that our client can only accept applications from engineering candidates who have a valid legal permit or right to work in the United Kingdom. Potential candidates who do not have this right or permit, or are pending an application to obtain this right or permit should not apply as your details will not be processed.

Job Title: Product Development Engineer Location: Glascoed Salary: £43,649 (dependent on skills and experience) What you'll be doing: Assisting product design and system engineering activities for new and legacy products The configuration and maintenance of engineering Bills of Materials (BOM) for products Facilitating product design and evaluation/ down selection e.g. Pugh Matrices, Fault Tree Analysis (FTA), Design Failure Modes and Effects Analysis (DFMEA) Process design, definition and critical evaluation e.g. Process Failure Modes and Effects Analysis (PFMEA), Process Control Plans (PCP) The management of suppliers, both internal and external, to ensure that development activities are completed to time and schedule Lifecycle management (contributing towards design reviews) from concept to disposal Contribution to the Risk Management process Working as part of an integrated project team, including regular engagement with project management, procurement (supply chain) and operations Your skills and experiences: Essential: Degree/HND/HNC or equivalent qualification or experience within mechanical engineering Demonstrable mechanical engineering experience Ability to read and understand engineering drawings and models Capability/experience of producing high-quality technical reports Desirable: A working knowledge of systems engineering and engineering design Working knowledge of risk management Knowledge of munitions design and manufacture Familiarity with the Life Cycle Management (LCM) process Benefits As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Medium Calibre Team: As a Product Development Engineer, you will have responsibility for the coordination of activities undertaken by specialist engineers as well as carrying out the project-specific activities defined by project plans/ tasks to develop defence products. This role will provide you with the unique opportunity to work with the design of defence products, as well as the chance to witness the product trials. You will have a really broad scope of work with good variation of day-to-day activities and involvement across the whole product lifecycle. There are a number of different routes available for future career progression, where the provision of training can be tailored towards your individual aspirations Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date 5th January 2026

Senior Software Developer (SIP/Python) Guildford/Remote - 1 day a month on-site £55,000 - £65,000 + Remote + Private Medical Insurance + Life Insurance + Other Benefits This is an excellent opportunity for a Software Engineer with a deep understanding of SIP, VoIP and Python to join a forward-thinking development team where you can further your skills and grow with an award-winning technology business. This company is an established technology partner and managed service provider, specialising in unified communications and cloud contact centre solutions. They help public and private sector organisations modernise their digital infrastructure with a focus on improving customer experience and operational efficiency through system integration and digital transformation. In this varied role you will take a lead in the development of an existing SIP platform. Responsibilities will involve designing and building value-add services, creating integrations for AI-driven services (such as voice recognition and transcription), and ensuring software remains secure at every level. The role also serves as a key technical resource for troubleshooting complex SIP/RTP issues and contributing to the continuous improvement of secure development policies. The ideal candidate will possess an in-depth working knowledge of VOIP protocols and Python. Candidates should be comfortable working with Docker, Linux, and REST APIs, while maintaining a high standard of OO Design. Beyond technical ability, the ideal applicant will be a strong communicator capable of bridging the gap between technical requirements and non-technical business objectives. This is a fantastic opportunity for a Senior Software Engineer to join within a position that offers autonomy to solve complex problems and the support of a highly skilled team that values professional growth and innovation. The Role: Design and develop the existing SIP platform and services. Connect systems to voice recognition and AI analysis. Ensure all code meets strict ISO/PCI-DSS standards. Provide resolutions for complex platform-level bugs. The Person: Extensive experience with Python, plus OO Design and REST APIs. In-depth understanding of SIP stack and trace analysis. Experience with SQLAlchemy, Git, and Docker. Desirable to have knowledge of Freeswitch, Kamailio, or C/C++ is a plus. Reference Number: BBBH266933 To apply for this role or for to be considered for further roles, please click "Apply Now" or contact Tom McLaughlin at Rise Technical Recruitment This vacancy is being advertised by Rise Technical Recruitment Ltd. The services of Rise Technical Recruitment Ltd are that of an Employment Agency Rise Technical Recruitment Ltd regrets to inform that our client can only accept applications from engineering candidates who have a valid legal permit or right to work in the United Kingdom. Potential candidates who do not have this right or permit, or are pending an application to obtain this right or permit should not apply as your details will not be processed.