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

The Java developer is a web and application development professional specialized in using Java, a server-oriented programming language. They are also called: Java programmer, Java programmer-analyst, Java software development engineer. This IT technician analyzes the specifications provided by the client to identify a technical solution that meets their technical and functional requirements point by point. They are then responsible for custom designing all or part of the computer program in Java. Then comes the trial and testing phase of the applications. Once the program is operational, they can proceed with writing technical documentation and user guides. The Java developer can progress towards supervisory positions, project manager, IT technical manager or even a commercial career.

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Job VacancySQL Developer (Remote)

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Published on
Git
MySQL
PostgreSQL

United Kingdom

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Permanent

Job VacancySQL Developer (Remote)

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Published on
Git
MySQL
PostgreSQL

United Kingdom

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Permanent

Job VacancyTech Lead Java Angular

HN SERVICES
Published on
Angular
API
DevOps

6 months
40k-67k €
400-550 €
Paris, France
Le prestataire interviendra de manière transverse en qualité de Tech Lead Fullstack & AI Engineer (Java/NodeJS/Angular, DevSecOps, Agentic AI) sur le périmètre applicatif de la Plateforme. Intégré au dispositif Shared Services, il aura pour rôle d'accompagner techniquement les Lead Développeurs, de garantir la cohérence des architectures microservices (REST/GraphQL) et d'intégrer des technologies d'Intelligence Artificielle Générative (systèmes agentiques). Livrables attendus : - Audit de code et feuille de route associée : Rapports d'analyse de la dette technique, plans d'action pour la modernisation du patrimoine applicatif et préconisations d'évolution de l'architecture microservices. - Socle d'Intégration IA & Écosystème Agentique : Spécifications et implémentation de services de connexion IA, serveurs MCP (Model Context Protocol), Tools / Skills, system prompts et intercepteurs de cycle de vie (hooks). - Architecture d'intégration d'API & GraphQL : Conception et mise à jour des schémas d'API, définition de la stratégie de fédération d'API (GraphQL subgraphs / gateways), et gestion d'états asynchrones complexes. - Modernisation DevSecOps & Orchestration : Optimisation des pipelines CI/CD, sécurité applicative et gestion des configurations de conteneurisation (Docker) et d'orchestration (Kubernetes / manifests Helm). - Développements de référence : Code propre, documenté et testé (Java/NodeJS/Angular) répondant aux problématiques d'intégration et d'implémentation les plus complexes. - Normes de développement & Veille : Mise à jour du socle de bonnes pratiques (Golden Rules) et livrables de restitution de veille technologique. Les prestations attendues sont les suivantes : - Évolution d'architecture & Systèmes Cognitifs : Cadrer et formaliser les préconisations d'évolutions de l'architecture microservices, des passerelles d'API REST/GraphQL et des intégrations d'architectures agentiques multi-agents. - Ingénierie de l'IA Générative : Concevoir, implémenter et optimiser des workflows d'agents autonomes à l'aide de protocoles d'échange standardisés (MCP), de compétences (skills), d'ingénierie de prompts et d'intercepteurs (execution hooks). - Industrialisation DevSecOps & Cloud Native : Contribuer activement à l'industrialisation, à l'automatisation et à la mise à l'échelle des processus DevSecOps en concevant et optimisant les configurations Docker, Kubernetes et Helm. - Revues de code, API Design & Refactoring : Réaliser des revues de code systématiques sur les briques Java, NodeJS et Angular, et concevoir les contrats d'interface GraphQL et REST. - Développement technique complexe : Prendre en charge le prototypage (POC) et le développement des sujets techniques, d'intégration (fédération GraphQL / middlewares NodeJS) ou d'IA les plus sensibles. - Mentoring & Accompagnement : Accompagner au quotidien les Lead Développeurs de la plateforme dans l'adoption des meilleures pratiques de conception, de codage, de déploiement et de développement d'applications conteneurisées. - Animation technique : Assurer une veille technologique constante et animer activement la communauté interne des développeurs.
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Permanent

Job VacancyPython Developer (Remote)

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Published on
Django
Flask
Git

United Kingdom

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Permanent

Job VacancySalesforce Developer

Halian
Published on
Apex
API REST
CI/CD

5 years
Paris, France
À propos du posteDans le cadre du développement et de l'amélioration continue de sa plateforme CRM basée sur Salesforce, notre client recherche un(e) Développeur(se) Salesforce pour rejoindre une équipe agile dynamique. Vous participerez à la conception, au développement et au déploiement de nouvelles fonctionnalités permettant d'optimiser les processus métier et l'expérience utilisateur. Vous contribuerez à des projets innovants intégrant l'automatisation, l'intelligence artificielle et des solutions conversationnelles, tout en collaborant étroitement avec les équipes Produit et les experts Salesforce. Cette opportunité convient parfaitement à un profil souhaitant évoluer dans un environnement digital moderne et développer progressivement des responsabilités techniques plus importantes. Missions principalesDévelopper, maintenir et faire évoluer les applications Salesforce en utilisant Apex et Lightning Web Components (LWC). Participer à la conception et à l'implémentation de nouvelles fonctionnalités sur Salesforce Service Cloud. Traduire les besoins fonctionnels en solutions techniques robustes et évolutives en collaboration avec les équipes métiers. Réaliser des intégrations avec des systèmes tiers via des API REST. Garantir la qualité, la performance et la sécurité des développements grâce aux bonnes pratiques et aux tests unitaires. Participer aux processus de déploiement et aux pipelines CI/CD. Contribuer activement aux cérémonies Agile (Sprint Planning, Daily Meetings, Rétrospectives). Proposer des améliorations continues, des automatisations et des innovations pour faire évoluer l'écosystème Salesforce. Profil recherché1 à 5 ans d'expérience en tant que Développeur Salesforce ou dans une fonction similaire. Bonne maîtrise de Salesforce, Apex et Lightning Web Components (LWC). Connaissance de Salesforce Service Cloud. Compréhension des modèles de données, de la configuration et des mécanismes de sécurité Salesforce. Expérience des API REST et des intégrations applicatives. Bonne connaissance de Git et des outils CI/CD. Anglais professionnel permettant de participer à des réunions et échanges techniques. Esprit d'équipe, rigueur et capacité à travailler dans un environnement Agile. Atouts complémentairesConnaissance des composants Aura. Expérience sur Marketing Cloud. Maîtrise des mécanismes d'authentification OAuth2 et JWT. Expérience avec Postman et Data Loader. Sensibilité aux sujets liés à l'intelligence artificielle, à l'automatisation et aux agents conversationnels. Curiosité technique et volonté d'apprendre dans un environnement en constante évolution.
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Contractor

Contractor jobSenior Netsuite Developer with Javascript and SQL

Nexus Jobs Limited
Published on

£350-500
Holborn, England, United Kingdom
Senior Netsuite Developer Our Client is a leading company who are looking to recruit a Senior Netsuite Developer with Javascript and SQL with extensive Netsuite OneWorld expertise. You will have a degree in Computer Sciences or equivalent certifications. Must have technical working knowledge of NetSuite OneWorld Financials platform, including relevant NetSuite certifications. Ideally have at least 5 to 7 years experience of developing in Javascript and Oracle SQL in order to develop applications for Netsuite including a minimum 5 years in NetSuite OneWorld. Experience of full software delivery lifecycle including capturing business requirements, developing solutions, user testing & training, post go-live support and optimisation. Experience of integrating Finance packages with other strategic solutions including CRM and eCommerce platforms. Must be a creative thinker, with the ability to proactively identify areas for potential improvement (process and functionality). Have the ability lead initiatives and solution enhancements. With confidence and judgement to plan and accomplish goals. Ability to translate business/operational requirements into effective and efficient systems solutions. Experience to manage conflicting priorities/complex workload. You must have extensive experience of all NetSuite financial modules is essential, as is their interfacing with other platforms. The Client has offices in Holborn London. Please send your CV to us in Word format along with your rate along with your availability.
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Permanent

Job VacancyC# .NET Software Developer with FX

Nexus Jobs Limited
Published on

£50k-60k
City of London, England, United Kingdom
C# .NET Software Developer with FX Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven trach record of developing with C# .NET ideally with some understanding FX projects. The Company is a fast growing dynamic brokerage firm, specialising in currency options and interest rate swaps. They are seeking a talented technologist to join the London team. You will be working in a fast paced, delivery focused environment where you will get the opportunity to make a genuine impact on the business rather than just 'making up the numbers'. Initially reporting to the CTO, the successful candidate will become a key member of the global team. There will be a large amount of autonomy in the role, giving the candidate the opportunity to showcase their development talents, Responsibilities :- Re-architecting and building the in-house middle office platform and integrating with a new trading platform. Developing pricing toolsets Integrating to external reporting/tradeflow and pricing APIs. Maintaining the company's daily operation on the existing platforms. Essential skills :- Minimum 3 years experience Microsoft web technologies ( C#, Core MVC ) Relational database experience (SQL Server) Proactively able to build relationships with stakeholders:- sales, brokers, middle office, external vendors. Ability to produce clean, well-written, fully tested production ready software. Desirable skills :- Knowledge of the FIX protocol Knowledge of FX trade processing Basic knowledge of Foreign exchange products (vanilla/exotic options, fx cash) ( training will be given) Qualifications: Computer Science related degree preferred At least 3 years experience in a comparable development role. The Client is based in the City of London. The salary for this role will be £50K - £60K. Please do send your CV to us in Word format along with your salary and availability.
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Contractor

Contractor jobSungard's Front Arena Application Developer

Nexus Jobs Limited
Published on

£500-750
London, England, United Kingdom
Front Arena Developer Our Client is looking to recruit several Sungard's Front Arena Developers/Consultants You will have at least 3 to 5 years solid back ground of working with Sungard's or FIS Global's Front Arena product. The role is to develop and support Front Arena applications through extending and integrating the core Front Architecture. SPECIFIC RESPONSIBILITIES: Develop highly visible applications within Front Arena. Design and develop integrations with other trading and back office applications. Support Trading Manager and the applications that utilize its output e.g. overnight risk/scenarios and Mark-to-Market. Provide occasional support for other Front Arena developed applications. Actively contribute in gaining application and business knowledge for the development team. The following skills and experience are considered essential for this role: Deep understanding of Front Arena and its programming languages: ADFL, ACM. AEL, ASQL and Python. Knowledge of Front Arena Architecture and components: ADS, ATS and Service Bus. Must be able to liaise and clearly communicate with colleagues. Experience of interacting with end users in the financial industry. Ability to work independently and solve business problems through own initiative. Ability to work in a fast changing environment Desirable skills/experience: Experience of the Front Arena 4 track. Experience of custom model integration. Experience of other Trading Systems. MS SQL Knowledge of Financial Derivatives This is a 6 month contract based in London. Do send your CV to us in Word format along with your daily rate and availability.
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Contractor
Fixed term

Job VacancyD365 Developer - Outside IR35 / Remote

LA International Computer Consultants Ltd
Published on

6 months
£400-475
SW1A 2AH, City of Westminster, England, United Kingdom
Dynamics D365 Developer - Outside IR35 / Remote A number of D365 Developers are required. You will have extensive experience to customise and development of D365 CE/CRM capabilities. The ideal candidate will design, develop, and implement solutions within the Dynamics 365 ecosystem while integrating with Azure services and other third-party applications. Skills: - D365 CE / CRM - .Net, C#, Javascript, TypeScript - Experience developing PCF components and plugins. - Integrating Azure Functions, Service Bus, and other Azure resources. - Experience in RESTful API development and integration with third-party services. - Familiarity with Power Automate, Logic Apps, and Dataverse Web API. The role is for 6 months initially with extensions highly likely. This is a home based role outside IR35. To be considered please send your CV over. LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. A multiple award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over consecutive years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.
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Contractor
Permanent

Job VacancyC++ Developer - Banking Trading System

VISIAN
Published on
.NET
AI Agent
C#

1 year
Paris, France
ContexteLa fonction principale du domaine « Deal Capture IRG » consiste à assurer le support, la maintenance et l'amélioration d'une application appelée STAR. STAR est un système de traitement des transactions chargé de la saisie des opérations sur dérivés de taux d'intérêt (IRD), les contrats à terme et les obligations, ainsi que du transfert ultérieur de ces transactions du Middle Office vers le Back Office. STAR constitue la colonne vertébrale de la suite informatique dédiée au traitement des transactions. Plus de 2 000 utilisateurs réguliers Saisie de plus de 1,5 million de transactions par mois Des utilisateurs répartis dans 42 pays Le développement logiciel est assuré à Londres et à Mumbai. L'équipe se compose de 23 développeurs logiciels et de 14 analystes métier répartis sur ces deux sites. Missions Développement de nouvelles améliorations à la demande de l'entreprise (qu'elles proviennent du Front-Office, du Middle-Office ou du Back-Office). Ces améliorations peuvent prendre la forme de nouveaux produits financiers, de nouvelles méthodes de comptabilisation, d'optimisations fonctionnelles, de réponses à des points d'audit, d'exigences réglementaires, etc. Maintenance : correction de bogues, assistance technique en cours de journée et assistance de 3e niveau pendant la nuit. Outils et environnement C++ (Visual Studio 2015) et C#.NET 4.6.1 dans un environnement Windows CppUnit pour les tests unitaires Python et Robot pour les tests de régression automatisés Oracle 12c, SQL et procédures stockées
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Permanent

Job VacancySQL Server Developer with SSIS and SSRS

Nexus Jobs Limited
Published on

£60k-75k
London, England, United Kingdom
SQL Server Database Engineer with SSIS Our Client is bank based in Central London – who are looking to recruit Database Engineer with at least 5 to 7 years sold expertise of working SQL Server SSIS and SSRS. Responsible for the development and delivery of pipelines (collect, validate and prepare high quality data) to automate and streamline processes required by different departments. Support existing SSIS ETLs (overnight and intraday), proactively fine-tune and enhance existing codes to increase robustness and error monitoring. Support the internal IT department with changes and upgrades to software platforms. Convert legacy Hyperion reports to SSRS. Software Development: Analysis of issues pertaining to problems or errors raised by in-house systems, i.e. CORE, SharePoint interface, Equation end of day cycle. Understanding business requirements in order to develop and deliver appropriate solutions based on system definition documents. Proficiency in advanced 4GL programming languages and able to apply to the fully development life-cycle. Database Support To build data pipelines within the SQL environment in SSIS packages, where required, introduce new field and data types for new information to be collated in the CORE environment. To build tabular models (SSAS) for different business units. To build reports based on business requirements using SQL SSRS. To integrate with all the Bank's sub-systems using data abstraction and connectivity layers, i.e. ODBC, ADO.net. Ensure that the environment is running optimally and with high standard house-keeping procedures. Sharepoint Integration: To integrate the SharePoint environment and Forms with Equation system to introduce automation of processes thereby eliminating the need for duplicate entry. To utilise web services to integrate from cutting edge technology into legacy systems such as Equation. End of Day Cycle: To provide second and third level support for in-house programmes during the end of day cycle. To be able to analyse and rectify any problems raised in an independent and team scenario. To take ownership of a problem and deliver a solution in a timely manner. Provide out of office hours support. Risk & Regulatory Duties Maintain knowledge of all applicable regulatory requirements including the Bank's Risk and Compliance policies and procedures and adhere to these to avoid exposing the Bank to undue risk. Report policy/procedure breaches and areas of potential non-compliance and suspicions promptly upon identification in accordance with the Bank's Risk and Compliance policies. Accurately execute all controls within own area to minimise risk of policy, procedure, and/or regulatory breaches. Identify new risks/control gaps within own area and escalate accordingly to your Line Manager and/or Head of Department. Training & Competence Complete all annual mandatory regulatory refresher training as per the Bank's training plans and deadlines. Proactively seek to complete recommended technical and behavioural competencies training required for your role. Act in accordance with the FCA/PRA Code of Conduct. Fulfil all prescribed business continuity requirements as set out in the organisational or departmental specific plans or as instructed by the Line Manager/Head of Department. Qualifications/Experience Degree level qualified or equivalent. MS SQL stack (SSIS, SSAS, SSRS) to high level of proficiency - Essential C# Programming / JavaScript programming - Desirable Knowledge and Skills Software analysis and design good practice Dimensional modelling, Entity Relationship modelling, Normalised modelling. Data warehouse design concepts, (Inmon, Kimball) The position is based in Central and you will be required to be in the office for 3 days a week. Please note the Client does NOT provide sponsorship. The salary for this position is in the range £60K – £75K. Please do send your CV to us in Word format along with your salary and availability.
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Frequently asked questions about working as a Java Developer (Kotlin, Groovy...)

What is the role of a Java Developer (Kotlin, Groovy...)

The Java developer is a computer specialist who focuses on designing software and websites. As the name implies, they have Java programming language down pat! Passionate and versatile, the Java developer must possess solid technical skills and some essential qualities to provide their client with a customized IT solution.

How much does a Java Developer (Kotlin, Groovy...) charge

The mastered frameworks, the company's sector, its location and the technical issues to be solved are all criteria that affect the Java developer's salary. Nevertheless, their daily rate is relatively high, even for a beginner. The latter earns an average of 483 euros per day. Their salary will be around £40K.

What is the definition of a Java Developer (Kotlin, Groovy...)

The Java developer creates applications at the client's request using their preferred language: Java. For this purpose, they must comply with the requirements provided in the specifications. They develop the application, then manage the testing phase as well as maintenance and update planning

What type of mission can a Java Developer (Kotlin, Groovy...) handle

The tasks generally assigned to a Java developer are: • Definition of client needs; • Application programming; • Development of website structure; • Writing explanatory notes so that the written code lines are understandable by other stakeholders; • Adding new functionalities and improving the performance of an existing application; • Performing unit tests and integration tests; • Technical support; • Updating existing code.

What are the main skills of a Java Developer (Kotlin, Groovy...)

Knowledge of Java language must be complemented by knowledge of: • The J2EE development platform; • Other programming languages; • Oracle and SQL databases; • Tools and frameworks such as Spring, Spring boot, React, Angular, Hibernate, AWS, GWT, Struts or Docker; • Algorithms; • Security standards and procedures to combat cyberattacks; • The business environment (market, services, customers). Those who wish to work as Java developers must also master English.

What is the ideal profile for a Java Developer (Kotlin, Groovy...)

In addition to the diploma and technical skills, recruiters require future Java developers to be: • Rigorous and precise in writing code; • Creative; • Good listeners; • Able to work in an agile environment; • Flexible and available; • Able to communicate and explain their knowledge to non-technical people; • Curious, as computer programs and languages are constantly evolving. A strong sense of analysis and organization is also required!

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