14532 backend developer English-speaking jobs in Poland

We are looking for a Senior Backend Developer to join our Optimization Team at Programmers Force. In this role, you will focus on optimizing backend systems for performance, scalability, and efficiency while working on large-scale, high-traffic workloads. Your responsibilities will include refactoring backend code, improving database queries and indexing, troubleshooting bottlenecks, and collaborating with cross-functional teams to scale backend architecture. You will ensure systems remain secure, reliable, and efficient while mentoring junior team members and enhancing test coverage. The ideal candidate has 4+ years of backend development experience with strong expertise in PHP (Laravel), Node.js, Python, MongoDB, and relational databases (MySQL, PostgreSQL). You should also be proficient in API development (REST/GraphQL), performance optimization, Docker, Git, and CI/CD practices. Experience with Redis, RabbitMQ, AWS/Azure, and backend security best practices will be considered a plus.

We are KUZNITSA TALENTS, and we are looking for an experienced backend developer / Senior PHP developer

Backend Developer (Python) – Contract / Remote We’re looking for a Backend Developer (Python) to join ... 💬 If you’re a curious Python developer who enjoys working with data, integrations, and modern backend ... Collaborate with a small distributed team (PM + GoLang developer + client’s engineers). ... Requirements 2+ years of experience in backend development (Python). ... This role is ideal for a developer who enjoys autonomy, building real products, and solving engineering

Senior Java Backend Developer – Cloud and Banking Solutions # Senior Java Backend Developer – Cloud and ... Developer – Cloud and Banking Solutions 297 - 378 USDNet per day - B2BSenior Java Backend Developer ... Senior Java Backend Developer – Cloud and Banking Solutions 297 - 378 USDNet per day - B2B7. ... Senior Java Backend Developer – Cloud and Banking Solutions #J-18808-Ljbffr ... **Your main responsibilities:*** Designing and developing backend services using Java and cloud-based

Join to apply for the Python Developer role at SD Solutions Senior Backend Developer – On behalf of ... CashCow, SD Solutions is looking for a talented Senior Backend Developer. ... You'll work with cutting-edge technologies, design and implement critical backend services, and help ... Responsibilities Design and develop scalable backend services using Python and FastAPI Implement and ... development and building scalable, high-performance systems Strong expertise in modern backend technologies

Backend Developer - Mobile Apps Miejsce pracy: Warszawa Technologies we use Expected Node.js Express ... Developer specializing in mobile applications to join our team. ... We operate within the mobile technology sector, crafting innovative backend solutions that empower our ... Our requirements Minimum of 3 years’ experience in developing scalable backend applications and APIs ... JavaScript Google Cloud Platform SQL PostgreSQL MySQL Firestore MongoDB About the project We are seeking Backend

Join to apply for the Backend Developer (Node.js) role at Fundraise Up Join to apply for the Backend ... About The Role As a Backend Developer, you will be a key architect of the engine that powers our global ... Developer (Node.js/TypeScript) We're unlocking community knowledge in a new way. ... Developer (Node.js) role at Fundraise Up Get AI-powered advice on this job and more exclusive features ... Our backend is powered by Node.js (Koa, NestJS) and MongoDB .

Backend Developer (Python) – Contract / RemoteWe're looking for a Backend Developer (Python) to join ... turn raw telemetry data into instant insights.This role is ideal for a developer who enjoys autonomy ... Python-based microservices (FastAPI / Flask).Collaborate with a small distributed team (PM + GoLang developer ... You'll work with an early-stage US startup, helping to shape integrations and backend systems that ... PM.Opportunity to grow into a long-term collaboration on scaling the platform.If you're a curious Python developer

++Operating systemWindowsLinuxAbout the projectAs a Senior Backend Developer (Java) you will be working ... Senior Backend Developer (Java)Miejsce pracy: WarszawaTechnologies we useExpectedJavaMavenPythonAnsibleGitLabLinuxDockerOpenShiftPostgreSQLKafkaOptionalC

Join to apply for the Tech Lead Backend Developer role at NATEK Continue with Google Continue with Google ... Join to apply for the Tech Lead Backend Developer role at NATEK Get AI-powered advice on this job and ... Job Description We are looking for Tech Lead Backend Developer who is going to join project within banking ... Developer who is going to join project within banking industry. ... with Google Continue with Google Continue with Google Job Description We are looking for Tech Lead Backend

Overview Ruby Developer / Backend Software Engineer (Ruby RoR AWS SaaS) Wroclaw 20,000 PLN Do you have ... Responsibilities As a Ruby Developer you will design and develop backend features, enhancements and APIs ... advanced experience with Ruby on Rails backend development? ... You could be progressing your career at a leading scientific software house in a hands-on Ruby Developer ... / Backend Software Engineer (Ruby RoR AWS SaaS) you can expect to earn a competitive salary: Up to 20,000

Your Role As a Senior Backend Developer , you will play a key role in designing, developing, and maintaining ... scalable backend systems that support next-generation renewable energy products. ... Responsibilities Design, develop, and maintain backend services using Kotlin and Java Build and manage

Overview Join to apply for the Senior Backend Developer role at Danfoss . ... Danfoss Group IT is seeking a Senior Backend Developer to join our global Digital Customer Experience ... General Skills : 3+ years of backend development experience in enterprise environments. ... Responsibilities Design, develop, and maintain backend services for Authorization Cockpit and MyDanfoss ... Skills Technical Expertise : Proficiency in C#, .NET Framework (latest and legacy versions), and modern backend

The team As a backend developer at Kahoot! ... The team As a backend developer at Kahoot! ... Description Are you a skillful backend developer with experience building scalable backend services used ... 5+ years experience as a Backend developer Experience with building scalable, high-performance backend ... developer with experience building scalable backend services used by a worldwide community?

the projectWe are seeking a talented Senior Backend Developer with a strong background in Go to join ... Senior Backend Developer (Go)Miejsce pracy: KrakówTechnologies we useExpectedGoSQLPostgreSQLOptionalPythongRPCGraphQLAWSAbout

The team As a backend developer at Kahoot! ... Overview Are you a skillful backend developer with experience building scalable backend services used ... developer Experience with building scalable, high-performance backend services BSc Degree in Computer ... You will report to the Engineering Manager - Backend located in Norway. Check out our Kahoot! ... Responsibilities Work with the backend team to design, build and maintain a robust, secure, and flexible

We’re looking for a skilled Backend Developer to join our growing engineering team. ... this role, you’ll be responsible for designing and building scalable, secure, and high-performance backend ... integration framework for Property Management Systems (PMS) Required Skills: 2 years of experience in backend

We are looking for a full-stack developer with experience in the Microsoft backend stack and frontend ... We are seeking a .NET Fullstack Developer to join our client, a leading company in consulting and digital ... Remote work Rate: 160 PLN/net/h + VAT (B2B contract) Project scope Develop and maintain .NET/C# backend

Senior Full-Stack Developer - 100% Remote EU - (all genders) - Warsaw Backend focused full-stack developer ... Backend Experience. Strong backend experience with Node.js + SQL. Architecture. ... At least 5 years of experience as a full-stack developer. Knowledge. ... Shape architecture and API design with a backend-first focus. ... who values independence and wants to grow further We’re looking for a senior full-stack developer with

Senior Backend Developer (Java/Kotlin) with Frontend knowledge Join to apply for the Senior Backend Developer ... Responsibilities Develop and maintain backend services for the Gaia web application.