backend developer

Key technical requirements ∙Python Proficiency: Strong proficiency in Python, including writing clean, type-hinted, scalable, and testable code. Strong focus on code quality, maintainability, and engineering best practices. ∙Backend And Data Pipelines Development: Proficiency to develop REST applications with FastAPI. Experience with databases (e.g....

JavaSpringHibernateSQLAngielskiStrong experience in Java 21 and Java-based application developmentHands-on experience with Spring Boot and related Java frameworksProven experience with relational databases and PostgreSQL SQLPractical experience with messaging technologies such as JMS, MQ, or similar protocolsStrong proficiency in Java frameworks including...

Sii Poland is seeking an experienced Senior Java Developer to help build an enterprise data integration and processing platform. You will focus on scalable backend services, microservices, and event-driven integrations in a global environment.Responsibilities include designing and implementing data processing solutions, modernizing legacy apps, and...

Job Details Job Title: Senior Backend Engineer (Golang) Location: Preferably in Vienna but open to have someone remote in Austria or in Poland Languages: German (fluent) & English Experience: Over 5 years of experience in backend development using Golang and other OOP languages, you will contribute to our SaaS platform, managing the full software...

Who we are Moniepoint Inc. is Africa’s all-in-one financial platform, helping 20 million businesses and individuals access seamless payments, banking, credit, cross-border, and business management tools each month.  As Nigeria’s largest merchant acquirer, we power most of the country’s point-of-sale (POS) transactions. Through our subsidiaries,...

CBTS in Poland is seeking a Backend Developer to design, implement and optimize server-side components, APIs and microservices. You will collaborate with frontend, DevOps and QA teams to deliver scalable, secure cloud-ready solutions.The role focuses on performance tuning, code quality, and troubleshooting production issues, with a strong emphasis on...

NTIATIVE IT Recruitment in Warsaw is seeking a Senior Java Software Developer to design, build, and maintain backend services for an enterprise-grade platform used by financial institutions.You will work in a small, autonomous Agile team on distributed systems, large-scale data, and high-performance systems, taking ownership from development to production...

Expereo International is looking for a Backend Developer in Katowice to enhance their Supplier onboarding and Quote Management teams. You will work daily with Python and C# to build services and solve real-world challenges like optimization and partner integrations. Responsibilities include implementing business logic, designing APIs, and maintaining code...

GFT Poland is seeking an experienced backend developer to design, implement, and maintain scalable .NET/C# services in modern distributed environments. You will work in Agile teams, taking ownership from analysis to deployment and operational support, collaborating with architects, DevOps, and QA to ensure high-quality systems.The role requires strong...

AmRest Holdings SE in Gdańsk is seeking an experienced PHP Developer to join a cross-functional SAFe team responsible for backend services and API design for our call center support systems. The role focuses on building scalable PHP backends, ensuring high performance and reliable integration with other components.You will work with Product Owner, frontend...

SOFTSWISS is seeking a Senior Go Developer to design and build scalable backend systems for our Sportsbook platform. You will shape architecture for a high-load, business-critical service and work closely with a cross-functional team.You will review code, write clean tests, optimize performance, and apply best practices in Go, Linux, Docker, Kafka, and...

Luxoft Poland seeks an experienced Java backend developer to drive migration of on-premise systems to Azure, focusing on securitization platform modernization. You will design microservices, build REST APIs, and implement CI/CD pipelines in a cloud-native environment.You'll work with AKS, Terraform, Docker, and various databases while ensuring performance,...

Diverse CG Sp. z o.o. Sp.k. in Gdynia, Poland is seeking a Software Developer to work on backend integration solutions. You will be responsible for building and maintaining microservices using Java and Spring Boot, and integrating APIs in a collaborative agile environment.The ideal candidate has over 5 years of experience and strong SQL knowledge, especially...

DCG Poland is seeking a skilled Software Developer to focus on backend and integration solutions in Gdynia, Poland. Responsibilities include building microservices, integrating APIs, and collaborating in an agile team. Candidates should have at least 5 years of experience, strong Java skills, and familiarity with various tools including Spring Boot and...

Sii Poland in Warsaw is seeking an experienced Senior Java Developer to join a team building a modern data integration and processing platform supporting logistics on a global scale. You will design scalable backend services and microservices using Java and Spring Boot, with a focus on event-driven integrations via Apache Kafka.The role requires hands-on...

About the RoleWe're experiencing significant growth and are looking for a Senior/Staff Backend Engineer to support our rapid product growth. This is an in-person role focused on owning and evolving our backend services to create a modern, AI-native developer experience.You willPartner with the Product, AI, and Operations teams to architect new features and...

Aduna Global Poland is seeking a Software Developer on the Traffic Plane team to help connect Aduna to CSP Service Exposure APIs, architecting scalable backend solutions and driving technical decisions. You will mentor junior engineers, participate in design reviews, and collaborate with SRE, security and product teams to improve observability, performance...

Proxify is seeking a Senior Backend (Node.js/Nest.js) Developer to join their remote network. The role involves building scalable web applications while collaborating closely with other developers. Ideal candidates will have 5+ years of experience with Node.js and solid expertise in building REST/GraphQL APIs. Proxify ensures predictable project hours and...

WHAT IS BOX?  Box (NYSE:BOX) is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, and transform business workflows with enterprise AI. We help companies thrive in the new AI-first era of business. Founded in 2005, Box simplifies work for...

Sii Poland is seeking a skilled Backend Kotlin Developer to join a fintech platform enhancing company expense management. You will design and maintain microservices, collaborate with Platform, Services, and SMB teams, and contribute to performance monitoring and reliability improvements.The role requires 3+ years in software development, Kotlin in commercial...