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Senior Backend Engineer France Jobs

11 Job Offers

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Senior Backend & Platform Engineer
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Senior Backend & Platform Engineer sought to join PhantomBuster’s CSI squad in Bordeaux, France. You will own end-to-end platform delivery, enhance scalability, and improve system reliability using TypeScript/Node.js, PostgreSQL, and AWS. Ideal candidates bring 7+ years of backend/infrastructure ...
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France , Bordeaux
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Not provided
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PhantomBuster
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Senior Backend Engineer
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Senior Backend Engineer sought for bsport’s Core team in Paris. You will build core data models, lead the new API as a Service, and manage authentication, permissions, and subscription systems. Requires OOP expertise (Python/Django a plus) and strong ownership. Enjoy hybrid work, full health insu...
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France , Paris
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Not provided
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Bsport
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Senior Backend Engineer
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Join our Paris-based team as a Senior Backend Engineer. Design and build robust, scalable APIs and services using Elixir, Node.js, or similar. Enjoy a 4-day work week, flexible remote options, and comprehensive benefits. Leverage your 7+ years of expertise in a collaborative, agile environment.
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Location
France , Paris
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Salary
55000.00 - 70000.00 EUR / Year
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Beamy
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Senior Backend Engineer
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Join our Paris-based team as a Senior Backend Engineer. Design and build robust, scalable systems using modern tech like Elixir, Node.js, and cloud platforms. Enjoy a 4-day work week, flexible remote options, and comprehensive benefits in a collaborative, agile environment.
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France , Paris
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55000.00 - 70000.00 EUR / Year
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Assessfirst
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Senior Software Engineer (backend, Django) - Sources team
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France , Paris
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Not provided
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GitGuardian
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Senior Backend Engineer
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Join Cozycozy as a Senior Backend Engineer in Paris. Evolve our core APIs to deliver millions of fresh travel results at speed. We seek strong Node.js/TypeScript expertise with MongoDB, PostgreSQL, and event-driven architectures. Enjoy a competitive salary, stock options, and a vibrant internatio...
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France , Paris
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cozycozy
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Senior Software Engineer (backend, Django) - NHI team
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Join GitGuardian's NHI team in Paris as a Senior Backend Engineer. Develop a world-leading secret security platform using Django and Python. Collaborate on distributed systems and big data flows within a skilled, proactive team. Enjoy comprehensive benefits including equity, health insurance, and...
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France , Paris
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GitGuardian
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Senior Backend Engineer
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Join Cozycozy in Paris as a Senior Backend Engineer. Evolve our core APIs and build scalable services handling high-volume data streams. We seek strong Node.js/TypeScript expertise with MongoDB, PostgreSQL, and modern CI/CD. Enjoy a competitive salary, stock options, and a vibrant office.
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France , Paris
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cozycozy
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Senior Backend Engineer - Customer & Monetization
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Join Deezer's User Growth team in Paris as a Senior Backend Engineer. You will build high-traffic applications with PHP, optimize databases, and use Kubernetes. Enjoy a premium account, hybrid work, gym access, and a vibrant office culture.
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France , Paris
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Not provided
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Deezer
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Senior Backend Engineer
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Join our Paris-based team as a Senior Backend Engineer. Design and maintain scalable server-side systems, APIs, and data architecture using modern tech stacks like Elixir, Node.js, or Python. Enjoy a four-day work week, professional development, and comprehensive mental health benefits in a colla...
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France , Paris
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Salary
55000.00 - 70000.00 EUR / Year
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Assessfirst
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Senior Backend Engineer
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Join our Paris-based team as a Senior Backend Engineer. Design and build robust, scalable server-side systems and APIs using modern technologies like Elixir, Node.js, or Python. Enjoy a 4-day work week, flexible remote options, and comprehensive benefits in a collaborative, agile environment.
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Location
France , Paris
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Salary
55000.00 - 70000.00 EUR / Year
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taster beauvais
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About the Senior Backend Engineer role

Explore the critical and dynamic world of Senior Backend Engineer jobs, where seasoned professionals architect the digital foundations that power modern applications and services. As a Senior Backend Engineer, you are the cornerstone of a product's server-side logic, databases, APIs, and infrastructure, ensuring scalability, reliability, security, and performance. This role transcends basic coding; it involves deep system design, strategic decision-making, and mentoring others to elevate the entire engineering team's output. Professionals in these positions are tasked with transforming complex business requirements into robust, efficient, and maintainable technical solutions that serve millions of users or handle sensitive data with precision.

Typical responsibilities for a Senior Backend Engineer are comprehensive and impactful. They commonly own the design, development, and deployment of backend services and APIs that serve front-end clients and other systems. This includes designing data models, selecting appropriate databases, and implementing business logic. A significant part of the role involves driving architectural discussions, making pivotal decisions on technology stacks, and defining long-term technical roadmaps for their domains. Senior Backend Engineers are expected to champion engineering best practices, conducting rigorous design and code reviews, establishing patterns for testing (unit, integration, load), and implementing robust CI/CD pipelines. They actively troubleshoot and optimize systems for performance and fault tolerance, often leading incident response and firefighting for live production issues. Collaboration is key; they work closely with Product Managers to translate user needs into feasible technical plans and partner with Frontend, DevOps, QA, and Infrastructure teams to deliver cohesive functionality.

The skill set required for these senior-level jobs is both broad and deep. Typically, candidates possess 5+ years of backend development experience, with proven expertise in one or more server-side languages such as Python, Java, Go, C#, Node.js, or C++. A strong grasp of system design principles, distributed systems, microservices architecture, and database design (SQL and NoSQL) is essential. Experience with cloud platforms (AWS, GCP, Azure), containerization (Docker, Kubernetes), and message brokers (Kafka, RabbitMQ) is highly valued. Beyond technical prowess, Senior Backend Engineers must exhibit excellent problem-solving abilities, capable of breaking down ambiguous challenges into actionable plans. Leadership and communication skills are paramount, as the role involves mentoring junior developers, providing technical guidance, and articulating complex concepts to cross-functional stakeholders. A commitment to continuous learning, agility in fast-paced environments, and a proactive approach to code quality and system resilience define success in these critical jobs, making Senior Backend Engineers invaluable assets in building the reliable digital experiences of today and tomorrow.