27,055 Backend jobs
Server-side engineering roles — APIs, services, databases and backend systems.
Lead Backend Engineer - Python/AWS - Fully Remote Australia
Hands-on Lead Backend Engineer (individual contributor, no people management) at a growing product-led technology company in Australia, owning complex backend and platform systems from design through production. Core stack: Python, AWS, FastAPI/Flask, Kafka/SQS, Docker, Terraform; fully remote within Australia.
Staff MaaS Backend Engineer
Lead the re-architecture of Bitdeer’s Model-as-a-Service platform into a globally distributed, multi-tenant token service with strict SLOs, metering, and billing for millions of users.
Backend Developer — Python
Python backend developer at Telsmart (Zedelgem, Belgium) building the services behind voice tech, provisioning, integrations, and AI-driven customer communication. Day to day: write production Python on AWS, shape architecture, and own quality (testing, observability, performance), at least 3 days onsite.
Backend .Net Developer
Backend .NET developer on a 12-person platform team at Smals (Belgian social-security IT provider), designing, building and maintaining reusable C#/.NET Core framework components and making Azure Cloud usable for other dev teams. Works in SAFe, sets up CI/CD pipelines and unit tests, fixes second-line bugs and writes technical documentation.
Développeur Backend Java H/F
Contexte de la mission Nous recherchons un Développeur Full Stack Java pour intervenir sur des applications stratégiques à fort enjeu métier, au sein d'une organisation agile structurée autour du framework SAFe (Scaled…
Senior Staff Backend Engineer - Security Platform
Senior Staff/Staff Backend Engineer on Coupang Singapore's Security Infrastructure team, building a dynamic authorization engine that protects customers and services across thousands of microservices. Day to day: designing backend systems, writing Java/Go APIs, leading projects and mentoring engineers.
[쿠팡] Senior Staff / Staff Backend Engineer (Security Infrastructure) 채용
Senior Staff/Staff backend engineer on Coupang's Security Infrastructure team in Singapore, building the dynamic authorization engine and customer authentication/authorization platforms that protect customer interactions across thousands of microservices. Day-to-day is writing backend APIs in Java and Go and designing large-scale distributed systems on cloud (AWS/Azure/GCP).
Backend Engineer - Real-Time Payments & Growth
Design, build, and operate scalable backend services and APIs in Java and C++ for Google's real-time payments and growth campaign platforms in Singapore. The role focuses on distributed large-scale systems, cross-functional collaboration, and delivering high-impact features for global users.
Senior Java Backend Engineer - Microservices Leader
NTT DATA Europe & Latam is hiring a Senior Java Backend Developer in Napoli to build modern, microservices-based back-ends using Spring Boot, Quarkus, JPA, and Kafka/RabbitMQ messaging, while coordinating junior engineers and acting as the technical reference point for clients on projects.
Senior Java Backend Developer - Microservices & APIs
Senior Java back-end developer at NTT DATA building microservice solutions with Spring Boot, Quarkus and JPA, using Kafka and RabbitMQ for messaging. Also supervises junior profiles and acts as client contact on projects; hybrid work from Italian offices including Milan, Rome, Turin, Naples and Bologna.
Senior Backend Java Developer — Microservices Expert (Hybrid)
NTT DATA Europe & Latam is hiring a Senior Backend Java Developer to build microservices-based systems with Java SE 8/17, Spring Boot, Quarkus, and JPA, manage complex APIs, and technically supervise junior developers. Hybrid role based around Milan/Rome offices with some remote work allowed.
Senior Backend Java Developer | Microservices Expert
NTT DATA Europe & Latam is hiring a Senior Backend Java Developer in Bologna to build microservices on modern frameworks, coordinate junior profiles and act as the technical reference for the client. Core stack: Spring, Quarkus, JPA, API management, SQL/NoSQL and DevOps best practices.
Senior BackEnd Developer
Senior backend developer hired permanently into an IT consulting firm in Florence (sourced via Lavoropiù's ICTpiù division). Day to day: designing and maintaining scalable RESTful APIs, optimizing SQL databases, integrating services, managing containerized environments, and code review. Core stack: Python (Django, FastAPI), Linux, Docker, PostgreSQL/MySQL.
Sviluppatore Software Full Remote — Frontend/Backend
Full-remote software developer expanding the IT team at Impiegando.Com, building web applications across both front-end and back-end with a focus on clean, testable, efficient code. Stack centers on JavaScript (React/Node.js) or alternatively Python/Java, with ongoing training and growth opportunities; based in Milan, Italy.
Senior Python Backend & API Integrations Engineer
At iEDI you support the Lead Developer and CTO in developing, maintaining, and improving integration solutions, handling a steady flow of small, well-defined tasks (from one hour to five working days). The core stack is Python, APIs, databases, and integration technologies.
Senior Backend Engineer - Java Spring Boot & Data Migrations
Senior backend engineer taking ownership of development and data quality for Studie+, IST's student-administration platform for Danish vocational and upper secondary schools. Day-to-day work centers on Java Spring Boot and PostgreSQL, acting as the team's database expert on a business-critical system.
Experienced Backend Developer at IST
Senior backend developer owning development and data quality of Studie+, IST's student administration platform for Danish schools. Day to day: building REST services in Java Spring Boot on Tomcat, acting as the team's PostgreSQL database expert, reviewing SQL/migration scripts, and migrating data from external systems.
Senior Backend Developer – CCTV AiNomaly
A 9-month contract building the backend for CCTV AiNomaly, a computer-vision product that analyzes production footage to detect and investigate manufacturing issues. You design backend services, cloud vs edge model deployment, CI/CD and integrations with the Qognify-based Global CCTV system, primarily in .NET/C# on Azure.
Staff Backend Engineer, Financial Engineering
About the Team Financial Engineering (FinEng) builds the financial systems behind ChatGPT, Codex, and OpenAI’s API platform. These products serve people, developers, and businesses around the world. We make them easy…