981 backend developer English-speaking jobs in Warsaw

Senior Backend Software Engineer to implement and extend micro-services in Go. Focus on high-scale, low-latency fintech systems, tuning DynamoDB/Postgres, and leading architecture reviews.

As a Senior Backend Engineer, you will focus primarily on backend development, application support, and ... You will work with Python-based backend services, cloud technologies, Kubernetes deployments, and data ... designing, developing, and maintaining backend applications in production environments.Experience working ... successful adoption and operation across different markets.QualificationsExtensive experience as a Backend ... rollout of the PGM solution across 20 countries over the next two years.Develop, maintain, and improve backend

What You’ll Bring 7+ years of experience as a Backend or Full Stack Engineer. ... Own end‑to‑end development of backend components and APIs — from architecture decisions to production ... What You’ll Do Design and build robust, scalable backend services supporting high‑volume on‑chain transaction

level tech) - 60 minutesPart 2:Video call/In-person technical stage with Head of Data Engineering + 1 Backend

You will be involved in building tooling for the developer pipeline delivering more streamlined and secure ... frameworkExperience with MySQL and KafkaFamiliarity with microservice architectureBeing not only a developer

ABOUT THE ROLEJoin our dynamic team in Warsaw as a Backend Engineer. ... This role offers a unique opportunity to drive solutions and actively shape our backend architecture.YOU

Experience: Minimum 5+ years of commercial experience in backend development (Java and/or Kotlin). ... Requirements (Must Haves): Experience: Minimum 5+ years of commercial experience in backend development

What we are looking for Backend Experience: Strong senior-level backend engineering experience in production ... Python: Strong Python skills and the ability to design clean, maintainable backend code. ... What You Will Own Build Systems: Design and ship backend services, APIs, data flows, and background ... What Strong Performance Looks Like You reliably move important backend work forward without waiting ... About The Role This role is for Middle and Senior backend engineers who can design and own business-critical

Experience building internal platforms, shared frameworks or developer productivity tooling, with a strong ... Strong backend expertise in Java (preferably 21+), with a solid understanding of JVM internals, concurrency ... For Proven experience designing, building and operating distributed systems at scale, owning complex backend

every tool they need to turn any idea into professional‑grade media, at scale.About the roleAs a Senior Backend ... resource-intensive inference tasks without compromising platform stability.Build the Creative Engine: Develop the backend

You will value our Developer Experience and the full platform of tools and technologies that make creating ... We are looking for people who: Code in Kotlin and/or Python and have experience to build robust backend ... From distributed systems and data streaming to algorithmic optimization, you'll tackle the complex backend

Developer Productivity & AI Adoption– Promote the use of AI-powered development tools to improve code ... Technical Leadership & Architecture– Guide the design and evolution of scalable backend systems and microservices ... management: mentoring engineers, driving engineering best practices, and ensuring the successful delivery of backend

Hands-on experience in developing backend applications using Spring Boot. ... Strong focus on building, testing, and maintaining high-quality backend services and APIs. ... Design the architecture of new modules and backend components and contribute to key technical decisions ... Occasionally contribute to areas beyond the backend, including web or mobile development, depending on ... The role: Design, develop, and maintain scalable backend services and APIs using Kotlin, Java, and Spring

Regular Kotlin Developer (f/m/x)Miejsce pracy: WarszawaTechnologies we useExpectedKotlinAWSKubernetesMicroservicesPostgreSQLJUnit ... experience in software developmentHands‑on experience with Kotlin in commercial projectsExperience building backend

We are looking for an experienced Senior React Native Developer to join our team and contribute to the ... application state using modern state management librariesCollaborate with cross-functional teams (designers, backend

unified internal UI platform, holding the bar on platform integrity, shared component quality, and the developer ... the organisation, spanning React-based frontend platforms, RESTful API design and maintenance, and backend ... or evolving internal tooling platforms, web applications that serve business operations teams, with backend ... technical direction for pipeline reliability, data quality, SLA management, and the API layer that bridges backend ... command of full-stack system design, API design and maintenance (REST, GraphQL, or equivalent), clean backend-to-frontend

For Digital Hub Warsaw, we are looking for: Security Monitoring Platform Developer (Azure Developer) ... (Title stated in the contract: Cyber Security Engineer) The Security Monitoring Platform Developer designs ... the Platform Engineer role: while the Engineer maintains infrastructure and platform operations, the Developer

Modern Tech Stack: Work primarily in Kotlin to build our backend services. ... You will value our Developer Experience and the full platform of tools and technologies that make creating ... While the backend is our core, having an interest in frontend technologies (like React, Angular, or Vue.js

Technical Leadership: Bridging Java backend design with modern frontend development to ensure cohesive ... Facilitating seamless onboarding of external partners by designing robust API contracts, writing high-quality developer

Required Skills & Experience 5+ years backend engineering with strong, recent TypeScript in production