873 backend developer English-speaking jobs in Île-de-France

Design, develop, and maintain high-performance solutions for the MYM back-end platform. Lead the transition from a monolith architecture to a distributed ecosystem of microservices. Develop and maintain core business logic in PHP 8 / Symfony 6.4 and upgrade to Symfony 7. Architect and implement new, high-performance services in Go. Ensure data integrity across PostgreSQL, DynamoDB, and document databases. Participate in code reviews and contribute to technical standards within the team. Guarantee quality and reliability by writing robust automated tests and ensuring system health through continuous monitoring and observability. Collaborate with the squad to design and architect deliverables and solutions. Engage with stakeholders to ensure technical strategies align with product goals. Share technical expertise, technology watch, and upskill the team through internal training. Promote continuous improvement and DevX practices such as CI/CD and monitoring.

Backend Developer (.Net Core) - Navigation team - Freelance (W/M/X) Not explicitly vibe coding — traditional ... About the Role Freelance Backend Developer (.NET Core) for Veepee's Navigation team to build and maintain ... Job Description Veepee is hiring a Backend Developer (.NET Core) to join the Navigation team responsible ... backend engineering with some mention of AI/LLM exposure. ... Requirements 5+ years of backend software development experience.

Developer Backend – NavOps, High Performance Computing Development w/m As part of this journey, our NavOps ... We are now looking for a Senior Backend Developer eager to build cloud solutions that empower global ... Automating our documentation using Documentation-as-Code: Build and lead a developer-friendly documentation

You'll be working as a backend developer in an AI-first environment, building the infrastructure that ... Job Description We're looking for a Senior Backend Engineer to join our AI Integration team. ... Experience with PHP (or willingness to work on legacy PHP codebases) Solid backend fundamentals: APIs ... , databases, caching, queuing systems, distributed systems Modern backend architecture: distributed systems ... Location: Paris, 3 days remote per week   What you'll do Build & Architect Design, develop, and maintain backend

And to support our growth, we’re hiring a Java Backend Developer. ... comprehensive logging, monitoring, and tracing for distributed systems Qualifications 4+ years of backend

Note: The original document primarily describes a Python Backend Developer role; however, this refined

OverviewSenior BackEnd Developer – Yubo Paris – Full Remote, 75 CDI n.c.Money moneyLabels & pactesResponsibilitiesWork

, tool use, retrieval, self-correction) to the UX and developer experience that wraps it. ... Own Windmill's agentic coding and tool/system-building pipeline end-to-end - from the AI backend (planning

As part of our product and technical growth, we are looking for a Backend Developer to strengthen our ... Responsibilities As a Backend Developer, you will work on a production SaaS product and play a key role ... Your responsibilities include: • Designing, developing, and maintaining backend services and APIs using ... & Experience • High level of autonomy, with responsibility for designing, building, and maintaining backend

Backend Developer will join a squad to maintain processing pipelines of 80 million documents and design, develop, and implement solutions for squad projects. The team utilizes Go, Python, JS, React, MySQL, Elasticsearch, Cassandra, Kafka, Gitlab, Docker, and Ansible.

About MangroveWe are looking for a Fullstack Blockchain Developer to join our core engineering team. ... full-time, ideally based in Paris, but remote-friendly for the right candidate.What you’ll doAs a Fullstack Developer ... Welcome to the team Send your application toLinksWebsiteDocsTwitterGitHubListed in: Cryptocurrency Jobs, Developer ... at Mangrove, you will be responsible for building both frontend interfaces and backend services, and ... and smart contractsDesign and maintain backend services (Node.js/TypeScript) supporting complex trading

About Mistral Mistral provides full-stack AI solutions: from frontier models to developer tools, applications ... Build and improve systems for authentication, billing, AI tooling, and developer experience. ... Experience with modern backend frameworks and technologies. ... on creating robust, high-performance systems that support authentication, billing, AI tooling, and developer ... What We're Looking For Experience designing and building scalable backend systems and APIs.

About Mistral Mistral provides full-stack AI solutions: from frontier models to developer tools, applications ... What You Will Do Backend Development Design, develop and maintain scalable, robust backend features ... Contribute to systems powering authentication, billing, AI tooling, observability, connectors, and developer ... Your work will involve building robust, high-performance backend systems and APIs to support our rapidly ... Stay up-to-date with new technologies (e.g., AI/LLM integration, observability, or backend frameworks

**YOUR ROLE**As a Backend .Net Developer, you will be entrusted with building robust, scalable, and secure ... ## Back-end .net Developer (H/F)Haeremote type: Hybrid/Partially Remotelocations: France - Issy les ... **YOUR PROFILE****Required Technical Skills*** Proven experience in backend development using .Net Core

to our mission to deliver the best platform to our Users.With 5 years of experience in backend development ... .## Job DescriptionWe’re looking for an **experienced Python developer** to reinforce our team and contribute

SDK - from beta to widespread adoption.Why this role stands outThis isn’t just another backend or platform ... role.You’ll be:Leading the development of a developer-facing SDK used by wallets, exchanges, and fintech ... on networks like Ethereum and beyond.Now they’re looking for a Tech Lead to take a core product - a developer ... with wallets, transaction flows, or custodyAbility to balance deep technical complexity with simple developer ... engineers and bring strong technical direction to the teamWhat we’re looking forExperience building SDKs or developer

quality, and your results Who We are Looking For Experienced: A minimum of 5 years as a software developer ... About the Role This position involves approximately 70% frontend and 30% backend development. ... You will contribute significantly to evolving our user interface and experience while supporting backend ... What You Will Do Work across the full stack—backend and frontend—to build scalable, performant solutions ... , with strong backend expertise and solid front‑end fundamentals Tech‑savvy: You write clean, testable

Days," "cool-down" periods for internal tech projects, and systematic code reviews AI-First: Every developer ... operate two core product lines, Symbiotic Flow (security workflows and automation) and Symbiotic Code (developer-first ... platform, working closely with our CTO (Édouard), EM (Abir), and Tech Lead (Minh Thang) Focus: 70% Backend ... Python 3.12+, Django (REST API) Frontend: TypeScript, React (SaaS platform & IDE plugin) Quality: 94% backend ... features; you'll lead technical scopes, drive performance initiatives, and mentor peers Technical Stack Backend

to navigate and excel in tasks with minimal supervision What the job involves As a Python Back End Developer ... Degree in engineering, computer science or similar technical field 2 or 3 years experience in Python backend ... telemetry data collected from the IT infrastructure The backend plays a central role in the product, ... , you will be responsible for developing the backend of our EDR, which stores, processes, and displays ... process data from 100,000 machines, so the code must be efficient, Ensuring the reliability of the backend

About you: 8+ years of backend software engineering, with deep expertise in Python. ... Own the architecture and technical direction of the telephony backend, and drive the ongoing migration ... Main responsibilities: This is a high-impact, high-autonomy role; we are looking for a senior backend ... Proven track record designing and operating business-critical production backend services at scale —