3064 backend developer English-speaking jobs in Warsaw

About the role As a Lead Backend Developer (Go/Kotlin), you will play a key role in modernizing a large-scale ... This role focuses on building resilient backend foundations, influencing architectural decisions, and ... MUST HAVES Bachelor’s degree in Computer Science or related field; 5+ years of backend software development ... Design and develop scalable microservices using Golang for transactional systems and/or Kotlin for Backend-for-Frontends

Responsibilities: As a React Developer you will be developing and maintaining modern React applications ... About project: We are looking for a Senior React Developer for our UK client, who specializes in psychometrics ... layers; You will be collaborating closely with backend teams, aligning on API contracts, data models ... Core MVC and Razor Pages, ensuring seamless communication and consistent behavior across frontend and backend ... APIs, authentication patterns, and middleware configuration, enabling secure and reliable frontend–backend

Tickmill is looking to hire a Backend Developer (.NET) to join our rapidly expanding team.Join a high-caliber ... Developer (.NET) will have the opportunity to:Design, develop and support backend services with a focus ... package, team-building events, and many opportunities for professional growth.What the job looks likeThe Backend

And they’re good at it.We’re currently looking for a Senior / Lead Full-stack Developer whose role will ... maintainability of a growing productWhat We’re Looking ForStrong commercial experience as a Senior Full-stack Developer ... be approximately 60% focused on React frontend development, with the remaining scope covering backend ... with a React-first mindset, solid backend expertise, and exposure to technical leadership rolesHands-on ... and guide technical decisionsDesign and develop React + TypeScript frontend tightly integrated with backend

architectural direction for the compute platform with an emphasis on reliability, scalability, and developer ... distributed systems at scale Drive platform evolution: Directly impact architecture, reliability, and developer ... Engineering Manager to lead the Compute Team responsible for the core compute platform that powers all backend ... platforms (AWS preferred: EC2, ECS, Lambda, IAM, CloudWatch) Solid experience building distributed backend ... orchestration, provisioning, scaling, runtimes) Collaborate closely with Infrastructure, Security, and Backend

We are currently seeking an Golang AWS Back End Developer specialist to join one of our clients ' ... Monitor, debug, and improve backend performance, reliability, and scalability. ... Required Skills Qualifications: 5+ years of backend development experience with Golang. ... Key Responsibilities: Develop and maintain high-performance backend applications using Golang.

deliver high-quality solutions Effectively manage and integrate the contributions of a full-stack web developer ... within the backend team’s scope. ... We’re looking for an experienced, highly motivated Backend Team Lead to join our Ads group and lead a ... team of talented senior backend developers responsible for developing and maintaining a high-traffic ... Responsibilities Lead, mentor, manage and inspire a diverse agile team of backend developers across

at scale Experience with multi-cloud deployments and cost optimization Track record of improving developer ... We need a Senior Backend Engineer with a strong focus on Go who can architect scalable systems, ship ... What You'll Do Design and implement high-performance backend services in Go Build and maintain ... You'll have direct impact this isn't a cog-in-the-machine role Own the entire backend architecture ... Join early, grow with the company, and help define engineering excellence To Apply Tell us about a backend

Role Overview As a Full Stack Developer, you will support the design, development, and maintenance of ... Role Overview As a Full Stack Developer, you will support the design, development, and maintenance of ... both backend and frontend components of our software solutions. ... both backend and frontend components of our software solutions. ... development experience Backend Development: Java 17+ Spring, Spring Boot, Spring Security Maven

management and continuous improvement.Required Qualifications Experience Proven experience as a Dynamics 365 Developer ... Responsibilities Design and develop solutions across Dynamics 365 Sales and Marketing.Build and maintain backend ... REST APIs, Logic Apps, Azure Functions, etc.).Hands-on experience with custom plugins, workflows, and backend

*instinctools is a developer of IT solutions for Western Europe. ... *instinctools is looking for a Middle+/Senior Java Developer for one of our clients. ... Tasks Develop and maintain backend services in Java for distributed systems Analyze data to support ... datasets, ensuring data quality and performance Collaborate with product managers, data engineers, and backend

developer frontend developer fullstack developer technical leader data scientist project manager What ... Practice with Python and backend framework - FastAPI. ... single project at a time you can change the project you focus on product development agile Team members backend

Job Title: Senior React Developer (Poland)Client Name:INVOLEADDomain:Information technology (IT)Location ... and frontend performance optimization.• Hands-on experience integrating frontend applications with backend ... (preferred).Candiates MUST be from Pharma or Health Science backgroundJob Description: Senior React Developer ... WCAG), and usability standards in frontend development.Collaboration G IntegrationWork closely with backend ... operations, accelerate insights generation, and enhance decision-making.Role OverviewThe Senior Frontend Developer

We are looking for an experienced Python Developer to join Anti-Money Laundering (AML) team. ... Key Responsibilities Serverless Backend: Design, develop, and maintain the backend logic using Azure ... Tech Stack & Environment Core: Python (Backend).

Contribute to backend development and cloud-based enterprise applications. ... Working as a Fullstack .NET Developer, you will: Participate in the full software development lifecycle

We're looking for an experienced Fullstack Developer to design and deliver scalable, secure web applications ... closely with cross-functional teams to develop and enhance enterprise-grade systems, combining strong backend

We are looking for a Python Backend Developer to join our Research and Development Team in Poland, as

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

4+ years of experience in backend development Be proficient with TypeScript, Node.js Proficiency in ... and frontend, with a strong focus on backend logic, data modeling, and system behavior, Work hand-in-hand ... profile access, while focusing on a clean, functional UI where clarity is key, Contribute to both the backend

migration projects (REST GraphQL, etc.)Multi-platform experience (iOS, Android, desktop, web)Background in developer ... This team is responsible for how all client-facing applications interact with backend services and APIs ... , forming the critical integration layer between user-facing products and core backend systems.This role ... and platform architecture discussionsDrive proactive collaboration with backend teams (not passive API ... integration standards, and act as the primary advocate for client application needs in platform and backend