Top Software Engineer Jobs in France

Build and own end-to-end features across Sona’s platform using AI-assisted development. Direct and correct agent-produced code, work cross-functionally, engage customers in discovery and workshops, and contribute across scheduling, payroll, HR, and mobile domains.

The role involves leading software development for Network Diagram capabilities, designing technical solutions, optimizing algorithms, collaborating cross-functionally, and mentoring engineers to uphold standards.

Lead architecture and requirements translation for avionics embedded and simulation software. Design certifiable architectures, deploy reuse frameworks (PLE/component-based), define DO-178B/C-compliant verification strategies, support feasibility and innovation (many-core/HPC), and coordinate cross-disciplinary stakeholders.

Design, build, operate, and support resilient distributed platform services. Write maintainable code, troubleshoot production issues, improve reliability and observability, and assist internal teams. Participate in on-call rotations and collaborate on platform evolution.

Lead design and delivery of scalable, secure cloud-native backend services, shape platform architecture, mentor engineers, contribute hands-on (Go/C++ backends, React frontends), establish engineering standards, improve observability and reliability, and collaborate with product and architecture teams to align technical investments.

Lead architecture and system design as a staff engineer, manage critical microservices, and influence engineering practices in fintech/blockchain.

The Senior Software Engineer will develop and manage backend systems for digital payments, focusing on microservices, API design, and integration with banking systems.

As a Senior Backend Engineer, you'll develop systems for massive traffic and scaling, maintain Rust components, and collaborate on feature development and continuous improvement, taking ownership of your work.

As a Senior Software Engineer at Bigblue, you will design scalable systems, improve engineering standards, and lead software development efforts while ensuring high-quality production code.

Own and evolve Scaleway's managed-database platform: design and ship features, automate deployments and upgrades, optimize performance, diagnose incidents, and participate in second-level on-call rotations, working with DBAs, SREs, and product teams.

Own and operate the core payment platform: Stripe and PSP integrations, webhook consumers, ledgering, payouts, refunds, chargebacks, tax/invoicing, and reconciliation. Build resilient, event-driven, scalable systems handling massive traffic spikes, model complex multi-currency money flows, and embed compliance with audit trails and automation while partnering with legal, finance, and ops.

As a Senior Software Engineer, you'll build product features using JavaScript/TypeScript, contribute to system design, and lead technical initiatives. Collaboration with engineers is key, and you will also work on Python services when necessary.

The Senior Software Engineer will develop and enhance a SaaS platform, focusing on backend and frontend development while collaborating on architecture and supporting team members.

As a Senior Software Engineer, you will lead your team in shipping features, making technical decisions, and mentoring others to scale products effectively.

Design and evolve systems for Motion's infrastructure, focusing on reliable and secure operations across APIs, Linux systems, and cloud environments with a focus on hands-on coding and engineering judgment.

As a Go Software Engineer for Identity Management, you will design, implement, and enhance identity management solutions, collaborate with a distributed team, and contribute to the development of authentication and authorization systems.

The Senior Software Engineer will lead the development of a Python-based platform, enhancing a mature system for open-source collaboration, mentoring teams, and driving innovation.

Own and productionize core localization systems (state estimation, mapping, calibration). Build monitoring, diagnostics, validation, and deployment tooling. Integrate sensors, tune performance, run regression testing, and iterate using data from real autonomous airport operations to enable driverless capability.

Design, build, test, and monitor production services; collaborate with product, UI/UX, and engineering teams; deliver performant, maintainable front-end and API solutions; ensure production practices (release, observability, troubleshooting); understand business needs and enable agency partners.

Design, develop, and maintain high-quality software solutions in C++ for financial services, collaborating within Agile teams and mentoring others.

The Senior Software Test Engineer will lead test engineering initiatives, design automated test frameworks, and advocate for quality within cross-functional teams.

Develop and maintain services for HPC Research Platform, focusing on scalability and reliability of compute workflows while collaborating with researchers.

Build pixel-accurate UI from Figma and Claude-generated templates using TypeScript/React, and contribute to C# backend services/APIs. Establish AI-native workflows with Claude, implement telemetry, troubleshoot full-stack issues, and improve tooling and maintainability.

Design, develop, test, deploy, and monitor high-scale, low-latency video SSP systems. Collaborate with engineers, data scientists, product and management to run experiments, ship features, and ensure performance, scalability, reliability, and observability in production.

Design, build, and maintain cloud-based data pipelines and infrastructure on AWS, integrating on-prem and cloud flows. Implement IaC, CI/CD, containerization, observability, and automation to ensure high-throughput, reliable data ingestion and processing for autonomous systems.