8,456 Senior Backend jobs
Senior backend engineering roles owning server-side systems and APIs.
Senior Backend Engineer II - Patient Experience
Senior backend engineer who owns Prenuvo's patient communications platform end to end — converting event-bus domain events into email, SMS, and push messaging (via Iterable, AWS SES, etc.) — plus the patient-facing APIs behind the patient dashboard and mobile apps. Core stack is Python/FastAPI on AWS event-driven services (EventBridge, SQS/SNS, Lambda, ECS) with PostgreSQL and Datadog.
Senior Software Engineer, Backend
Senior backend engineer at Cognite (industrial AI/data platform) owning major parts of the identity platform — token introspection, external IdP federation, and the audit log pipeline — from design through production. Builds and operates services end-to-end in Rust and Kotlin with TypeScript apps, focused on auth, security, and multi-tenancy at scale.
Senior Backend Engineer
Senior Backend Engineer at Vay designs, builds, and operates scalable Go-based backend systems that coordinate teleoperated vehicles, remote drivers, and customers in real time — covering dispatch, fleet operations, and customer experience for a live remote-driving mobility service in Las Vegas.
Senior Backend Engineer, Music Rights & Platforms
Join our global force of 400+ innovators, blending the latest in tech with the greatest in soundtracking, from our Stockholm HQ to offices in London, New York, Los Angeles, Berlin, Paris, Oslo, and Seoul. We’re an…
Senior Backend Engineer - AI Data Pipelines (Hybrid)
Senior backend engineer joining the founding team of an AI-driven analytics startup in a hybrid role based in San Mateo, CA. Day to day they build scalable data pipelines for data-intensive workloads on modern cloud infrastructure while helping shape the product roadmap and engineering culture.
Senior Python Backend Engineer for Energy Data & APIs
A senior Python backend engineer builds APIs and data pipelines for energy asset onboarding and market operations, including real-time ingestion via MQTT and RabbitMQ. Works with PostgreSQL for relational/time-series data, AWS (RDS, S3, Lambda, ECS), and Docker in an agile team setting, based in Belgium.
Senior .NET Backend Engineer — Data-Driven Energy Platform
EnergyVision (listed on Euronext Brussels) is hiring a Senior Backend .NET Developer in Ghent to build a data-driven platform for energy and mobility solutions. Day to day: backend development with C#/.NET Core, WPF and API communication, working closely with architects to ship maintainable, testable software.
Senior Backend Engineer: Data Pipelines & AI (TS/ClickHouse)
MentionLab is hiring a Senior Backend Engineer in a hybrid Belgium-based role to build and own data infrastructure: designing data pipelines, optimizing analytics, and delivering APIs that power AI-driven insights. Core stack includes TypeScript, SQL, Rust, and ClickHouse.
Senior Backend Developer
Senior Backend Developer in the Brugge region (Belgium) building the backend of CloudPiling's SaaS platform for deep-foundation (geotechnical) engineering using Python and Django. Day to day: develop geotechnical calculation and foundation-optimization software, review code quality, and shape architecture with the Lead Developer and geotechnical engineers.
Senior Java Backend Developer
Freelance senior Java backend developer for a hybrid assignment in Brussels: building, extending and maintaining backend applications and integrating new features within an agile development squad. Core stack includes Java, Spring, REST/SOAP, Docker and Kubernetes.
Senior Java Backend Developer — Hybrid Freelance
Freelance senior Java backend developer for a hybrid assignment in Brussels: building, extending, and maintaining performant backend applications within a development squad. Core stack: Java, Spring Framework, REST/SOAP, Docker/Kubernetes, working in Scrum/agile processes.
Senior SAP ABAP/S4HANA Backend Developer
Senior SAP backend developer at Pauwels Consulting designing and implementing complex ABAP solutions in an S/4HANA environment for a utilities-sector client, including interfaces (IDoc/ALE, BAPI/RFC, SOAP, OData), estimation, specs, and mentoring. English required; French or Dutch is a plus. Based in Belgium.
Senior .NET Developer: Frontend & Backend Innovator
A senior developer role at Editx, a Belgian consultancy group, doing both backend (.NET) and frontend (Angular/React/Vue.js) work for various clients located in the Antwerp-Brussels-Ghent triangle, involved from analysis through to delivery. On-site at client locations; commute distance is taken into account.
Développeur Backend Senior JavaScript / Node.js
Senior backend developer at INOV in Paris who designs and builds new features for web applications using JavaScript and Node.js, maintains and improves existing apps, and ensures code quality, security, and performance through testing, code reviews, and documentation within an Agile team.
Senior Backend Engineer - Shape Ai-Driven Learning - €4.500 - €6.500 Per Maand
Senior Backend Engineer building an AI-driven learning platform for an education technology company. Works remotely with occasional office meetups in Amsterdam, developing backend features in Python and Django on greenfield projects, requiring 5+ years of backend experience and agile ways of working.
Senior Java Backend Developer - Forensic Ops (Hybrid) - €4.422 - €6.490 Per Maand
Senior Java backend developer at the Dutch national police organization in Utrecht, building software for forensic investigations. Day-to-day work in a DevOps team using Java and OpenShift, with hybrid working arrangements.
Senior Java Backend Developer – Cloud Microservices - €5.877 - €8.395 Per Maand
Senior Java backend developer at an IT company in Utrecht building stable, scalable cloud microservices for a lending business, using Java 17+, Spring Boot, and modern tooling. Salary €5,877–€8,395 per month depending on experience, with benefits like vacation days and development opportunities.
Senior Backend Developer - €5.000 - €7.000 Per Maand
Als ervaren backend developer bouw je mee aan schaalbare oplossingen met C# en ASP.NET Core. Je werkt in een innovatieve omgeving en draagt bij aan technische keuzes.
Senior Backend Engineer - Python, Api & Saas (Ai) - €4.000 - €6.000 Per Maand
Medior/Senior Back-end Developer gezocht voor een startup in Zeist. Je ontwikkelt SaaS-producten en dataplatformen met Python, Flask en API-integraties.