emagine Consulting SARL

Contractor job API Integration & Support Engineer (h/f)

Luxembourg

emagine Consulting SARL

Published on 06/11/2026

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We're looking for an API Integration & Support Engineer to help accelerate the adoption of our client's API products across Corporate and Institutional clients, among others. The ideal candidate will work with internal teams to deliver first-class technical support during API onboarding and integration.

Your responsibilities

  • Customer API integration support: Guide clients through onboarding and integration, act as the main technical contact on APIs, explain API capabilities, and support testing phases.

  • Technical consulting and troubleshooting: Analyse integration issues, review API requests and responses, and recommend improvements.

  • Product and sales support: Support the sales teams during pre-sales discussions and demonstrate API capabilities to clients.

  • Project coordination: Track onboarding projects and manage dependencies and communication with stakeholders.

  • Documentation and knowledge management: Maintain API documentation and build troubleshooting guides.

Your profile

  • Education: Bachelor's degree in Computer Science, Software Engineering or a related field.

  • Technical skills: Good knowledge of REST APIs and API testing tools, plus programming experience (Python, Java, etc.).

  • Soft skills: Excellent customer-facing communication, rigorous organisation and attention to detail.

  • Languages: Fluent English is essential. French is an asset.

Other details

  • Location: Candidates must be based in Luxembourg or the Greater Region. Full remote and nearshore are not considered.

  • Contract: 6-month freelance (T&M) assignment, starting at 2 days per week on average.

  • Outlook: A permanent role may be considered at the end of the assignment, with no commitment at this stage.

  • Relocation: A freelancer based abroad (e.g. Poland) can only be considered if they plan to relocate to Luxembourg or the Greater Region later.

Candidate profile

Working environment

A propos d’emagine Depuis 30 ans, nos clients voient en emagine un partenaire fiable auquel ils confient leurs projets IT, Applicatif, Digital et Cybersécurité. Présent en France au travers de 5 bureaux et en dix autres pays Européens, nous formons dorénavant un groupe de 600 m€ de chiffre d’affaires, avec plus de 4 500 consultants en mission. Nous accompagnons nos clients sur des prestations à très forte valeur ajoutée et proposons des solutions complètes d’audit et de gestion de ressources externes. Nous devons notre capacité à intervenir sur des prestations complexes ou pointues à notre esprit d’innovation et à l’agilité qu’emagine met au cœur de son dispositif.

Courbevoie, Île-de-France
> 1000 employees
Consultancy firm
Depuis 30 ans, nos clients voient en emagine un partenaire fiable auquel ils confient leurs projets IT, Applicatif, Digital et Cybersécurité. Présent en France au travers de 5 bureaux et en dix autres pays Européens, nous formons dorénavant un groupe de 600 m€ de chiffre d’affaires, avec plus de 4 500 consultants en mission. Nous accompagnons nos clients sur des prestations à très forte valeur ajoutée et proposons des solutions complètes d’audit et de gestion de ressources externes. Nous devons notre capacité à intervenir sur des prestations complexes ou pointues à notre esprit d’innovation et à l’agilité qu’emagine met au cœur de son dispositif.

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API Integration & Support Engineer (h/f)

emagine Consulting SARL

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