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Senior Software BE Engineer France Jobs

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Senior Software Engineer
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Senior Software Engineer sought to lead backend development for the Patient Online Booking feature, impacting 90 million patients in France’s top healthcare app. You will drive technical vision, enhance Java and Ruby on Rails performance, and champion AI-augmented engineering. Based in Paris, thi...
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France , Paris
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Doctolib
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Senior Software Engineer (Agentic AI) - Python
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Join Doctolib in Paris as a Senior Software Engineer in Agentic AI. Develop a transformative AI Health Companion using Python, focusing on production-grade agentic systems, safety, and evaluation. You'll need 4+ years of experience, a product mindset, and expertise in SDLC best practices. Enjoy t...
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France , Paris
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Doctolib
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Senior Software Engineer Scientific Engine (Python)
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Join our Paris team as a Senior Software Engineer. You will lead the Python scientific engine, mentor junior developers, and optimize code within a microservices architecture. We seek an expert with strong Python skills, a solid engineering background, and fluency in English/French. Enjoy a colla...
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France , Paris
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Descartes Underwriting
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Senior Software Engineer (Supplier Data Manager)
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Join Akeneo as a Senior Software Engineer for the Supplier Data Manager product. You will scale this critical AI-driven data pipeline, using your deep Python or PHP expertise. Enjoy a flexible remote/hybrid role from Paris, London, or Nantes, with significant benefits and a customer-centric, coll...
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France; United Kingdom , Paris; London; Nantes
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Akeneo
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Senior Software Engineer (Fullstack) - React/Java
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Join Doctolib as a Senior Fullstack Engineer in Levallois-Perret. Develop high-impact healthcare solutions using React and Java/Kotlin in a collaborative, feature-driven team. We value code quality, a user-first mindset, and offer extensive benefits including health insurance and remote work flex...
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France , Levallois-Perret
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Doctolib
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Senior Software Engineer
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Join Airbus Helicopters as a Senior Software Engineer in Marignane. Develop safety-critical embedded software for military mission avionics, ensuring compliance with DO-178 standards. Utilize your expertise in real-time systems, DevOps, and the full V-model lifecycle. A proactive mindset for proc...
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France , Marignane
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Airbus
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Senior Embedded Software Development Engineer – Air-Ground Datalink Systems
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Join Airbus in Toulouse as a Senior Embedded Software Engineer for Air-Ground Datalink Systems. You will design and develop DO-178C certified, real-time embedded software in C, focusing on ATN/ACARS protocols and ASN.1. This role requires deep avionics datalink expertise and offers a comprehensiv...
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France , Toulouse
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Airbus
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Senior Software Engineer - Data Platform
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France , Paris
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Vibe
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Senior Software Engineer (backend, Django) - Sources team
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France , Paris
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GitGuardian
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Senior Embedded Software Architect for Vehicle & Engine Management System
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Join Airbus Helicopters in Marignane as a Senior Embedded Software Architect for Vehicle Management Systems. You will design and develop certified embedded real-time software (C, SCADE) for helicopter avionics, ensuring DO-178 compliance. This role requires over 6 years' experience, strong system...
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France , Marignane
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Airbus
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Senior Software Engineer
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Join our new OpenGRC team as a Senior Full Stack Engineer in France. Build a scalable SaaS/On-Prem product from scratch using React, TypeScript, and Node.js. This high-impact role involves architectural design, rapid MVP iteration, and engaging with the open-source community. Enjoy competitive pa...
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France
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Filigran
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Senior Software Engineer – OpenCTI
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Join the OpenCTI team as a Senior Software Engineer in France. Shape the core of our open-source cybersecurity platform using Node.js, TypeScript, React, and GraphQL. Enjoy a remote-first role with competitive pay, equity, and full autonomy to drive features from design to delivery.
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France
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Filigran
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Senior Software Engineer
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Join OpenAEV as a Senior Software Engineer and shape our open-source platform's core. You'll leverage Spring, Java, React, and PostgreSQL to build impactful features in a remote, async environment. Enjoy competitive pay, equity, and full autonomy while mentoring engineers and tackling technical d...
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France
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Filigran
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Senior Software Engineer
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Join our new XTM One team as a Senior Full Stack Engineer. Shape a state-of-the-art, scalable AI platform using TypeScript and Python in a remote-first role based in France. This high-impact position offers competitive pay, equity, and flexible work while you build a core SaaS/On-Premise product.
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France
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Filigran
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Senior Software Engineer - Integration (Python)
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Join our Integration Engineering team as a Senior Software Engineer. Design and deliver robust Python integration solutions for our core platforms, OpenBAS and OpenCTI. Work remotely from France in an async-first environment, ensuring seamless system interoperability. Enjoy competitive pay, equit...
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France
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Filigran
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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 Frontend Software Engineer
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France , Paris
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60000.00 - 90000.00 EUR / Year
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Bsport
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Scala Backend Software Engineer, Senior / Lead
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Join Ledger in Paris as a Senior/Lead Scala Backend Engineer. Develop high-performance microservices and APIs for secure crypto transaction services. Leverage 6+ years of experience and technical leadership in a hybrid role with equity, comprehensive health insurance, and a dynamic team.
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France , Paris
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Ledger
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Senior Software Engineer - E-commerce
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Join Ledger's core web engineering team in Paris as a Senior Software Engineer. You will own the end-to-end e-commerce experience on ledger.com, focusing on Web 3 technologies. We seek a craftsman with 5+ years of enterprise experience, skilled in TDD, pairing, and Clean Code. Enjoy flexible remo...
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France , Paris
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Ledger
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Senior Power Systems Software Engineer
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Join a high-level R&D team in Paris as a Senior Power Systems Software Engineer. Design and develop innovative energy sector solutions using Java, Python, and C++. We seek an expert with strong algorithm design skills and knowledge of Kubernetes/DevOps. Enjoy flexible hours and a central office l...
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France , Paris
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Artelys
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About the Senior Software BE Engineer role

Explore a world of opportunity in senior software backend engineering jobs, where experienced professionals architect the core logic and services that power modern applications. A Senior Backend Engineer is a pivotal technical leader responsible for designing, building, and maintaining the server-side components, databases, and APIs that form the foundation of software systems. This role goes beyond writing code; it involves making critical architectural decisions that ensure scalability, reliability, security, and performance as user bases grow and data volumes increase.

Professionals in these jobs typically own the end-to-end development of robust backend services. Common responsibilities include designing and implementing efficient data models and database schemas, building well-documented and secure RESTful or GraphQL APIs, and developing the business logic that drives application functionality. They are deeply involved in integrating various third-party services, managing authentication and authorization systems, and ensuring data integrity and protection. A significant part of the role is optimizing system performance, diagnosing complex bottlenecks, and planning for scalability, often using cloud-native patterns like microservices, serverless functions, and event-driven architectures. Furthermore, senior engineers are expected to establish and champion best practices in code quality, testing, and deployment, frequently mentoring junior team members and collaborating closely with frontend engineers, DevOps specialists, and product managers.

The typical skill set for these senior roles is extensive. Proficiency in one or more backend programming languages such as Python, Java, Go, C#, or Node.js is fundamental. A strong grasp of database technologies, both SQL (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, DynamoDB), is essential. Candidates are expected to have hands-on experience with cloud platforms like AWS, Azure, or Google Cloud, and with infrastructure-as-code tools such as Docker and Kubernetes. Understanding CI/CD pipelines, version control with Git, and comprehensive testing strategies are standard requirements. Beyond technical prowess, successful senior backend engineers possess excellent problem-solving abilities, clear communication skills for articulating complex technical concepts, and a proven track record of taking ownership of projects from conception to deployment and iterative improvement. For those with the requisite experience and a passion for building resilient systems, senior software backend engineer jobs offer a challenging and rewarding career path at the heart of technological innovation.

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