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Solvex Solutions

Back End Developer

Hybrid

Longpont-sur-orge, France

Mid level

Freelance

09-01-2026

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Skills

Java Kotlin CI/CD DevOps Kubernetes Architecture AWS Agile Spring Spring Boot CI/CD Pipelines Microservices

Job Specifications

Senior Backend Engineer (Kotlin / Spring Boot / AWS)

Location: Longpont-sur-Orge (91), France – Hybrid (according to client policy)

Contract: Long-term freelance mission (6 months with extensions)

Start Date: ASAP / Flexible

Languages: French and English (mandatory)

About

As part of the creation of a new cloud-native backend platform, our client is building a small squad of backend engineers to design, develop, and deploy a scalable and observable backend solution integrated with AWS services.

You will work in a cross-functional Agile team alongside an Architect, DevOps Engineer, and Product Owner, contributing to the delivery of the first production-ready version of the platform.

Responsibilities

Design and develop backend services and microservices using Kotlin and Spring Boot
Deliver a robust, scalable, and reliable cloud-native backend platform
Integrate backend services with AWS components and services
Contribute to platform observability, including logging, metrics, and tracing
Participate in CI/CD pipelines and Kubernetes-based deployments
Ensure clean code practices, testing, documentation, and security standards
Collaborate effectively within an Agile, cross-functional team

Required Skills and Experience

Minimum 5 years of experience as a Backend Engineer
Strong hands-on experience with Kotlin and Spring Boot
Solid understanding of AWS and cloud-native architecture patterns
Experience working with CI/CD pipelines
Good understanding of Kubernetes and containerised environments
Strong backend fundamentals within the Java ecosystem
Experience working in Agile delivery environments
Ability to work in a hybrid model in Longpont-sur-Orge (91)
Fluent in both French and English

Apply Now! m.savaliya@solvex-solutions.com

About the Company

, we redefine business process outsourcing, empowering companies to broaden their horizons. For over a decade, we've established business process management (BPM), resource process outsourcing (RPO) services, and dedicated offshore teams. We've delivered excellent results across the UK and Europe, seamlessly integrating with your core business operations. ? Our unwavering commitment to excellence sets us apart in the industry. We are not just service providers; we are strategic partners, delivering unmatched quality se... Know more