8,615 Senior Backend jobs
Senior backend engineering roles owning server-side systems and APIs.
Senior Java Backend Engineer
Senior Java backend engineer for a 6-month contract (extendable, start mid-November) building and scaling a client's Voice Provider platform — designing robust, scalable backend services and APIs for production speech-generation tech. Remote work allowed but you must be based in Sweden.
Senior Backend Developer
Senior Backend Developer in Lottomatica's Operations & Technology department in Rome, designing and evolving scalable .NET 8+/C# microservices: REST APIs, event-driven integrations (RabbitMQ/MassTransit), SQL Server/MongoDB/Redis, Docker/Kubernetes and CI/CD, while mentoring the team.
Senior Backend Developer
Senior Backend Developer at Lottomatica, Italy's largest regulated gaming operator, designing and evolving .NET 8+/C# microservices: RESTful APIs, event-driven integrations, SQL Server/MongoDB/Redis data layers, and Docker/Kubernetes deployments, plus mentoring and technical decision-making. Hybrid role in Rome; €55–60k gross annual.
Senior Backend Engineer (Trading)
Build and optimize core crypto trading systems for Coins, a Philippine crypto exchange serving 18M+ users. Day-to-day Java work on matching engines, order handling, settlement, and market data with a focus on low-latency, high-concurrency distributed systems using Netty, Disruptor, Kafka, Redis, and MySQL.
Java Backend Developer Sênior - REMOTO
Senior remote (Brazil) Java backend developer at digital-engineering consultancy Verity Group: design and build scalable Java/Spring Boot microservices and REST APIs, using PostgreSQL/MySQL, MongoDB/Redis, Kafka/RabbitMQ/SQS, Docker/Kubernetes and CI/CD, while mentoring junior developers and ensuring code quality and security.
Java Backend Developer Sênior - HIBRIDO
Senior Java backend developer (hybrid, São Paulo) at Verity, a digital transformation and engineering consultancy. The person acts as the squad's technical reference — evolving Java/Spring Boot microservices, APIs, CI/CD and observability, troubleshooting production issues, and mentoring other developers.
Desarrollador backend .NET Senior (con Claude Code) - Híbrida - Microcentro
Senior .NET backend developer who designs and maintains REST APIs in ASP.NET Core with SQL Server, using Claude Code and AI agents as the core development workflow, deployed on Azure with DevOps practices. Hybrid role in Argentina (Rosario / Microcentro).
Sr Software Engineer Backend
Tenemos una oportunidad para vos, estamos buscando Sr Software Engineer Backend para sumarse a nuestro equipo de Purchase dentro de nuestro dominio de Payments . Diseñar y desarrollar microservicios escalables y…
Desarrollador de Software Backend Senior (Microservicios)
Senior backend developer in Tijuana designing, building, and maintaining scalable microservices-based backend systems and APIs for a tech company's product. Core stack includes Java/Python/Node.js, REST APIs, SQL/NoSQL databases, cloud platforms (AWS/Azure), and Docker/Kubernetes with CI/CD.
Desarrollador Backend Senior (Java/.NET/Python)
Senior backend developer for IT consulting firm ids Comercial TI, building backend services in Java, .NET or Python with microservices and unit testing. CI/CD and a Lean & Agile mindset are valued; the role supports digital transformation projects for diverse enterprise clients.
Desarrollador Backend Senior - Cloud (Remoto | Stock)
Placements24 is hiring a Senior Backend Developer for a fully remote team building SaaS solutions. The role centers on designing scalable APIs, microservices, and cloud infrastructure, working across Python/Java/Node.js/Go alongside product and DevOps, and mentoring junior engineers.
Desarrollador Backend Senior con Experiencia en Cloud
Senior backend developer (hired via staffing firm Placements24) for a fully remote SaaS client: designing, building, and maintaining scalable APIs, microservices, and cloud infrastructure. Core stack spans Python/Java/Node.js/Go, AWS/Azure/GCP, Docker/Kubernetes, and SQL/NoSQL databases.
Senior Backend Engineer
MyOme’s mission is to provide clinically actionable genetic information to patients throughout their lives. We combine clinical-grade whole genome sequencing, advanced AI methods for genome interpretation, and seamless…
Senior Backend Engineer – AI-Driven Cloud APIs
Senior backend engineer at Cresset building drug discovery cloud services, REST APIs and web applications with Python (FastAPI/Django). Day to day: designing APIs, automated pipelines and AI workflows, owning projects to production, and mentoring peers.
Senior Backend Engineer | AI Platform
Senior backend engineer on Plum's AI Platform team, building the internal infrastructure, frameworks and tooling that power AI features across Plum's smart saving/investing app. Day to day: designing scalable platform services with Python, FastAPI and LLM/agent frameworks on GCP.
Senior Python Backend Engineer for AI-Powered APIs
Senior Python backend engineer at Thrive IT Systems in Sheffield, building scalable REST APIs and Generative AI/LLM-powered applications. Day to day: designing data models, integrating LLMs, cloud-native development, CI/CD pipelines, PyTest testing, and secure coding with modern DevOps tooling.
Senior Backend Engineer - Multi-Stack API & Data Systems
Senior backend engineer in the UK who owns end-to-end backend features, APIs, and data models. Works across multiple stacks (Python, TypeScript, Elixir, Rust, Go), building idempotent, reliable integrations between ERPNext, Stripe, Resend, and Postgres while collaborating directly with clients.
Senior Python Backend Engineer Azure FastAPI Kubernetes
Diverse Consulting Group is hiring a senior Python backend engineer to design, build, and maintain scalable cloud-native services on Azure — RESTful APIs and microservices with CI/CD and Docker/Kubernetes in production. Core stack: Python (FastAPI and/or Django), Azure, SQL/NoSQL data modeling, and security best practices.
Senior AI Backend Engineer - London (Hybrid, Equity)
Senior backend engineer at Personio (posted via Womentech Network) designing and scaling the backend services that power Personio's AI Assistant and agent experiences, owning features end-to-end alongside ML engineers, product, and design. Hybrid role in London with two office days per week; equity offered.