225 backend developer English-speaking jobs in Poznań

Develop, scale, and maintain backend services (Configuration API, TextApp services, Integration API) ... We’re looking for a solid Backend Engineer (Go) with a strong sense of ownership to join the Configuration ... You may be a great fit if you have ~4+ years of backend engineering experience in product-focused environments

Senior Java Developer (Java, Spring Boot, Microservices) Position Overview We are looking for a Senior ... Java Developer to join our team in Poland and contribute to the development of highly scalable fintech ... Requirements 3–5 years of professional backend development experience. ... Proven experience building and maintaining backend services and APIs at scale. ... Responsibilities Design and develop backend architecture for fintech products and platforms.

Senior Java Developer - Freelance Miejsce pracy: Poznań Technologies we use Expected Java Spring Spring ... This is a single-developer project, where you will work closely with the client's internal teams and ... legacy backend systems Improve and extend existing microservices and backend integrations Maintain and ... Boot Kubernetes About the project We are looking for a Senior Backend Engineer with strong architectural ... laboratory stakeholders to clarify requirements, define scope, and improve existing backend processes

strong Python backend skills. ... You are A Frontend/Fullstack Developer with 2.5 years of experience, combining deep React expertise with ... strong proficiency in React and modern JavaScript/TypeScript Very strong proficiency in Python and backend ... scalable frontend applications with a focus on performance and user experience Build and maintain robust backend

We are looking for an experienced Python Developer responsible for developing and maintaining backend ... Key Responsibilities Design, develop, and maintain scalable backend applications using Python Build and ... related fields, or equivalent experience Nice to have: Experience in creating, testing, and maintaining backend

build and enhance next-generation trading and backend platforms . ... We are looking for an experienced Senior C++ Developer to join our client’s engineering team and help

We are looking for an experienced .NET WinForms Developer to join the frontend engineering team and help ... Collaborate with backend engineers (C++ systems) to maintain low-latency TCP/socket communication .

We are seeking a highly experienced Full-Stack Developer (Angular / Java / AWS) to join a hybrid development ... with Angular, building scalable and modern web applications Minimum 4-5 years of experience in Java backend ... the software development lifecycle (design, implementation, testing, deployment) Develop and maintain backend

Are you a skilled React developer and are interested in capital markets? ... Nice-to-Haves Exposure to backend Java (reading backend code occasionally required). ... This is a fully remote frontend React development role for a developer in Poland . ... Ability to read backend Java code is a plus. ... Work with backend systems via REST APIs and data streaming.

Requirements Backend Expertise : Solid experience with Node.js and NestJS in backend development. ... As a developer, you will have a direct impact on the product’s architecture, building a scalable SaaS

for web applications using Django Collaborate closely with our backend engineers and designers Take ... If you are a passionate MID or SENIOR Python Developer, this opportunity is perfect for you! ... Tasks As a Python Developer at AppTailors, you will: Design software architectures Implement new features

improvements Drive architectural decisions and establish patterns that support scalability, reliability, and developer ... About the Role We are looking for a Senior Backend Engineer to architect and build the core systems of ... high-performing team Must Haves 5 years of software development experience building scalable systems using backend

We are looking for a highly skilled Senior Backend Engineer who excels at crafting code for spring- based

Embark on a journey of continuous growth and advancement as a Mobile App Developer , becoming an integral ... performance, quality, and responsiveness across a wide range of devices Connect mobile apps to the backend ... automated tests (Unit and UI) to maintain high-quality standards Collaborate closely with designers, backend ... managers Work in a young, dynamic team responsible for the entire product ecosystem—from hardware to backend

Finance Location : Kraków / Hybrid/ Remote from Poland Your daily work will include: Develop and maintain backend

improvements; Drive architectural decisions and establish patterns that support scalability, reliability, and developer ... :) About the role We are looking for a Senior Backend Engineer to architect and build the core systems ... Must haves 5 years of software development experience building scalable systems using backend programming

Responsibilities Technical Execution: Build and maintain scalable backend systems with a focus on clean ... Role Overview As a Backend Engineer, you’ll be integral to building and scaling platforms for our global

Build CI/CD solutions to improve developer productivity and enable rapid deployments. ... research engineering team to design, build, and operate the infrastructure behind a security-sensitive backend ... This position consists of approximately 70% DevOps work and 30% backend development using Kotlin Requirements ... It is a hybrid DevOps and backend engineering role with Docker experience on top of a Kotlin/DevOps foundation

About the role: The Full Stack Developer will have to ensure the delivery of quality software solutions ... At least 4 years' experience in software development Experience in backend technologies and building

Your work will directly influence system performance, scalability, and the overall developer and user ... Experience profiling backend/database-heavy systems in production. ... Required Skills Expert-level C# / .NET backend engineering. Strong database design experience. ... query performance by identifying inefficiencies in traversal, filtering, projection, aggregation, and backend ... includes optimizing how data is traversed, filtered, aggregated, and executed, with a strong awareness of backend