3190 backend developer English-speaking jobs in Masovian Voivodeship
Senior Mobile Engineer (Flutter + Native)
- Doodle
- Warszawa
- January 16
API Communication: Implement and manage efficient data communication with our backend services using ... Data Communication: Deep, practical experience integrating mobile applications with backend services ... Collaboration: Partner with Backend Engineers to define effective GraphQL schemas and with Product/Design
Salesforce Engineer
- Balyasny Asset Management L.P.
- Warszawa
- January 16
Backend experience with NodeJS, C#, or Python — especially building APIs consumed by UI teams. ... Author Apex controllers, services, and asynchronous jobs to support UI interactions and backend workflows ... with Salesforce via Apex, REST APIs, platform events, and bulk/data sync patterns; collaborate with backend
Senior Mobile Engineer
- Doodle
- Warszawa
- January 16
and enforce best practices for mobile development (Flutter and native).Collaboration: Partner with Backend ... achieved solely in Flutter.API Communication: Implement and manage efficient data communication with our backend ... Swift/Objective-C).Data Communication: Deep, practical experience integrating mobile applications with backend
Founding Full-Stack Engineer
- INFUSE
- Warszawa
- January 16
S3 + SQS / EventBridge / Lambda or equivalent)Build and extend backend APIs (Flask / FastAPI) to support ... shipped and operated production-grade full-stack systemsYou're comfortable owning execution across backend ... continuously refreshed.We're looking for a hands-on founding full-stack engineer to own execution across backend
Software Engineer, Python
- YouGov
- Warszawa
- January 16
Your work will combine hands-on backend development with the use of AI-driven tools and automation to ... entity management faster, smarter, and more reliable.Key ResponsibilitiesDesign, build, and maintain backend ... improvement.Own the entire software lifecycle.Skills & Experience2-3 years of experience as a Python backend
SEEBURGER IT DEVELOPER
- PMSolutions
- Warszawa
- January 5
-Hands-on experience with SEEBURGER applications, such as BIS Mapper Designer, BIS Developer Studio and ... REMOTESALARY: from 19.000 pln to 22.000 pln grossWhat you'll be doing:-Working as SEEBURGER / BIS Mapping Developer ... written and spoken English.PLEASE SEND YOUR CV TO [email protected] with title „SEEBURGER IT DEVELOPER
Senior Oracle BI Developer with ETL
- Luxoft Poland
- Warszawa
- December 22
We are looking for a Senior BI Developer for our client – one of the world's largest natural resource ... Get notified about new Business Intelligence Developer jobs in Warsaw, Mazowieckie, Poland. ... Required Qualifications
5+ years of relevant experience (ideal candidate should have 10 years) as a developer
Senior .NET Engineer
- Yalantis Limited
- Warszawa
- January 29
You’ll work oncore backend components in .NET/C#, ensure reliable cloud-ready architecture and performance ... microservices using .NET
Collaborate closely with SA, BA, QA, Frontend developers, PM, DevOps, and other backend
2026 Summer Intern, BS/MS, Software Engineering, Commercialization
- Waymo
- Warszawa
- January 27
simulation across 15+ U.S. states.The transportation & ride-hailing infrastructure team builds the backend ... field or equivalent practical experienceCollaborate with different teamsWe prefer:Experience working on backend
Technical Lead Data Engineering (Scala / Spark)
- Randstad Polska
- Warsaw
- January 21
to increase development efficiency what we expect 7+ years of experience in Big Data engineering or backend ... cybersecurity, code quality, and SDLC tools (Sonar, Fortify) Knowledge of microservices, REST APIs, or frontend/backend
Staff Software Engineer
- Waymo
- Warszawa
- January 16
and machine learning models.We are looking for a Staff / Lead Software Engineer, with experience in backend ... have:BS degree in Computer Science or equivalent practical experience6+ years experience working with backend
Software Engineer, Trip Platform
- Waymo
- Warszawa
- January 10
Experience in building backend applications and API.
We Prefer
Experience in C++. ... degree in Computer Science or equivalent practical experience.
3+ years of experience programming in backend
Staff Software Engineer (BE/ML) - Compliance & Readiness
- Waymo
- Warszawa
- January 5
We are looking for a Staff / Lead Software Engineer, with experience in backend development and building ... BS degree in Computer Science or equivalent practical experience
6+ years experience working with backend
Engineering Manager
- Tabby | تابي
- Warszawa
- January 5
What you’ll bring:
6+ years of backend engineering experience, with at least 2 years working with Golang ... building scalable, distributed systems and working with high‑load architectures
Solid understanding of backend
Data Engineer (Databricks Specialist)
- HyLogic
- Warszawa
- January 5
This role focuses heavily on advanced Databricks optimization and backend data engineering for business ... problem‑solving, and communication skills.Understanding of Power BI as a data consumer and how to optimize backend
Senior React Engineer (Mobile & Web)
- Zeelo
- Warszawa
- December 31
Collaborate with designers and backend engineers to deliver features end‑to‑end. ... You’ll work closely with design, product, and backend teams to deliver accessible, performant, and maintainable
Data Engineer (Databricks Specialist)
- Hylogic sp. z o.o.
- Warszawa, mazowieckie
- January 16
This role focuses heavily on advanced Databricks optimization and backend data engineering for business ... Understanding of Power BI as a data consumer and how to optimize backend models for BI performance.
Senior Salesforce Engineer
- Link Group
- Warszawa
- January 16
to continuous improvement.Requirements5+ years of Salesforce experience (Consultant, Administrator, Developer ... Cloud, Tableau, or industry-specific Salesforce Clouds is a plus.Nice to havePlatform App Builder or Developer
Configuration/ Deployment Specialist
- ThoughtLabs Belgium
- Warszawa
- January 16
tasks and responsibilities- Support ICT team in application build, integration and deployment– both backend
Java Expert
- ALTEN Polska
- Warszawa
- January 5
context.ResponsibilitiesSupport delivery of SEK Batch for PIP DowntownDesign, develop, and optimize Java-based backend

















