27,035 Backend jobs
Server-side engineering roles — APIs, services, databases and backend systems.
Программист 1С (разработчик ТМS)
Зарплата: от 220000 RUR (на руки)
Senior Python Backend Engineer
Senior Python Backend Engineer at Shield (Ramat Gan) designs, builds, and operates the backend of an AI-driven communications surveillance and compliance pipeline for financial institutions. Day to day: owning architecture, integrating ML/GenAI models with business logic, running services in Docker/Kubernetes on AWS, and supporting production systems.
Senior Backend Developer /Tech Lead
Senior Backend Developer/Tech Lead at DriveNets will design, build, and own production systems for cloud-native networking software, working with multiple teams. Core technologies include NodeJs, Python, or Go, with experience in distributed systems and databases.
Werkstudent (w/m/d) - Backend Developer Java
Über IONOS Bei IONOS verwalten wir nicht nur Server, wir prägen mit unseren Lösungen die digitale Zukunft für über 6,2 Millionen Kundinnen und Kunden weltweit. Als Europas führender Hosting-Anbieter und Pionier für…
Working Student (f/m/d) - Backend Developer Java
About IONOS At IONOS, we don't just manage servers – we shape the digital future for more than 6.2 million customers worldwide with our solutions. As Europe's leading hosting provider and a pioneer in independent cloud…
Senior Backend Engineer (m/w/d)
Build and own the AI-powered backend for a European B2B used-car trading platform, selecting tech, designing architecture, and scaling a system serving 40k buyers across 20+ countries.
Staff Backend Engineer – Search and Discovery Product Engineering
Build and optimize Coupang’s search and discovery backend to power millions of daily transactions, using Java/Go and distributed systems to reduce latency and scale APIs.
Senior Manager - Backend Engineering
Leads a team of 8–10 engineers to re-architect Coupang’s global transportation platform, building scalable event-driven systems that process tens of millions of daily transactions.
AI Platform Backend Engineer (Scala/Java) – Hybrid
Backend engineer on Neula's AI platform, working on the JVM with Scala/Java/Kotlin and Akka to build scalable, secure cloud backends, work with SQL/NoSQL databases and REST APIs, and integrate LLMs for RAG solutions. Hybrid role based near central Warsaw; Polish and English required.
AI-Native Backend Engineer (Scala/Java/Kotlin)
Backend engineer for Neula's SaaS business-process automation platform: shapes system architecture and ensures cloud scalability and security, building JVM services (Scala/Java/Kotlin, Akka) with LLM integrations (ChatGPT, Llama, Anthropic) for RAG and agents. Hybrid role, 2-3 days per week in the Warsaw office.
Senior SDET with Java (Backend, Banking, AI)
Senior SDET (Java) building automated test frameworks for a global investment bank's Multi-Tenant Enterprise Governed Data Platform, a cloud-native analytics solution on Microsoft Azure serving 50+ business units. Day to day: designing Java-based automated tests, integrating them into CI/CD, and validating data transformations for Risk, Finance and Treasury.
Tester Automatyzujący Backend – Java i Mikrousługi
Astek Polska in Kraków is hiring a backend test automation engineer (4+ years) to develop test frameworks and automate API tests for banking/microservices projects. Hybrid role with 3 days per week in the Kraków office, using Java in Agile teams with CI/CD; Selenium/Playwright is a plus.
Backend Java Engineer – Secure Identity Platform
Backend Java developer at IN Groupe in Łódź building secure, scalable backend services for national digital identity infrastructure. Day-to-day work spans designing and maintaining Java backend components, cryptography, high availability, code quality, and troubleshooting mission-critical systems.
Senior Java Backend Architect - Microservices & REST API
Upvanta is hiring a senior Java developer/architect in Poland to design complex backend systems and make key technology decisions. The core stack is Java 11+, microservices architecture, and REST APIs within Agile teams using Jira/Confluence; finance/insurance systems experience is a plus.
Senior Backend Engineer - Trusted Agentic Development
GitLab seeks a Senior Backend Engineer, Trusted Agentic Development, to own the validation thesis for agent-generated software. You will prototype feedback loops and build systems that ensure trustworthy agent-based…
Hybrid .NET Developer – Backend & API Specialist
Solid Company poszukuje programisty .NET, który będzie projektować, rozwijać i utrzymywać aplikacje w środowisku .NET z uwzględnieniem wymagań biznesowych. Do zadań należy projektowanie backendu, usług API oraz…
Backend .NET Developer with Copilot Studio Experience
As a Backend .NET Developer with Copilot Studio experience, you will primarily design and build secure, scalable backend applications and services using .NET and Microsoft Azure. You will also build and extend…
.NET Backend Developer | Hybrid (2 days/mo) Łódź/Warsaw
Margo Group poszukuje doświadczonego backendowca .NET do zespołu obsługującego usługi ogólnoorganizacyjne dla sektora bankowego. Doświadczenie w bankowości nie jest wymagane — liczy się solidna praktyka w .NET i dobra…
Senior Backend Rust Developer
Talent has no borders. Proxify's mission is to connect top developers around the world with the opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent…