Senior Full-Stack Software Engineer @ Oversee

7 days ago

Remote Kraków Wrocław Warszawa Katowice, Czech Republic Oversee Full time

5+ years of experience in software engineering, with a track record of building production systems Strong background in designing scalable, distributed applications Hands-on experience with Python/Django and Java/Kotlin*(JVM stack) Familiarity with TypeScript/React Solid understanding of Linux runtime environments Skilled at identifying and solving performance bottlenecks Excellent collaboration skills with the ability to give and receive constructive feedback Fluent in English, with strong written and verbal communication Proactive, curious, and eager to keep learning At Oversee, we are reimagining how corporate travel is managed. Our cutting-edge technology and machine learning solutions replace the outdated, manual processes that slow companies down — unlocking cost savings, efficiency, and smarter decisions. We bring together travel analytics and actionable insights, giving global enterprises a clear view of their spend and the tools to continuously improve their programs. We’re growing fast, with exponential YoY revenue growth and partnerships with some of the world’s largest Fortune 500 companies. If you are looking for a dynamic, fast-paced, and positive environment — and want to help solve a $17B global problem — Oversee is the place to build, grow, and make an impact. Why join us?  As a Senior Full-Stack Software Engineer, you’ll be at the core of this mission — designing scalable systems, solving tough technical challenges, and making a meaningful impact on how companies manage billions in travel spend. 📍 Work mode: 100% Remote 🕒 Contract type: B2B💼 Experience level: Senior💰 Rate: 200-250 PLN/h⏳ Start date: ASAP Come shape the future of business travel with us ,[Design, build, and maintain high-performance backend services, data pipelines, and distributed infrastructure, Develop front-end features in TypeScript/React to bring complex ideas to life, Implement complex business logic and intelligent filtering algorithms that power our platform, Optimize fare tracking solutions to help clients save millions annually, Contribute to architectural decisions for distributed, high-scale applications, Integrate with third-party APIs (REST/SOAP) and ensure smooth interoperability, Collaborate closely with product and business teams to deliver features that drive real impact] Requirements: Python, TypeScript, Django, Kotlin, AWS, Java, JVM, Kubernetes, Terraform, React, Node.js, Flask, CI/CD, Microservices, FastAPI, PostgreSQL, Kafka, RabbitMQ Tools: Jira, Confluence, Notion, GitHub, GIT, GitHub Actions, Agile, Scrum, Kanban. Additionally: Small teams, Startup atmosphere, Employee referral bonus, Stock options, High-end equipments.

  • BI Developer @ Oversee

    2 weeks ago

    Remote, Kraków, Wrocław, Warszawa, Katowice, Czech Republic Oversee Full time

    About you: 3+ years as a BI/Data Developer (or similar role) Strong SQL skills and a sharp analytical mindset 1+ years building Power BI dashboards (not just consuming them) Good eye for UI/UX and how data should be presented Experience with data quality best practices and methodologies Familiar with ETL/ELT and DWH concepts (and eager to dive deeper)...

  • Full-Stack Engineer @ Rho

    2 weeks ago

    Remote, Warsaw, Wrocław, Cracow, Czech Republic Rho Full time

    4+ years of professional experience as a full-stack software engineer Solid understanding of backend systems and experience building APIs and distributed services Proficiency in Python, Go, or similar backend languages Strong experience with TypeScript and React for modern frontend development Knowledge of distributed systems, including trade-offs made to...

  • Full Stack Python Software Engineer @ ITMAGINATION

    2 weeks ago

    Remote, Czech Republic ITMAGINATION Full time

    Min. 6 years of hands-on experience in software engineering.   Strong foundational knowledge and proven ability to build and maintain complex software applications    Min. 2 years of experience in full-stack development, with a solid understanding of both front-end (React, JavaScript, CSS, HTML) and back-end (Ruby/Rails, Python) technologies.  ...

  • Full Stack .Net Software Engineer @ ITMAGINATION

    2 weeks ago

    Remote, Czech Republic ITMAGINATION Full time

    Min 5 years of Software experience, with a minimum of 4 years in .Net and SQL   Experience with SP.NET using C#, .NET Fx 4.0/ 3.5, JavaScript, MVC 4, WCF, Web Services, HTML 5, CSS, JQuery, Java Script.   Solid experience using VS 2017/ 2019, GIT/GITLab   Experience in working with distributed imaging systems​   Ability to work between 6pm-2am CET...

  • Senior Full-Stack Engineer

    2 weeks ago

    Remote, Wrocław, Warszawa, Białystok, Łódź, Kraków, Czech Republic Unravel Full time

    Requirements 5+ years of experience in full-stack development, preferably in a microservices architecture Expertise in Node.js; experience in Golang is a plus Strong expertise in creating modern modular web frontends with Angular and Svelte/Svelte-Kit according to micro frontend architecture. Solid knowledge of modern UI/UX principles and how to adapt...

  • Full Stack Engineer @ ITDS

    2 weeks ago

    Kraków, Czech Republic ITDS Full time

    You're ideal for this role if you have: Bachelor’s degree in Computer Science or related field  Proven experience in reliability engineering, systems administration, or DevOps  Strong proficiency in scripting and automation with Python, Shell, or PowerShell  Hands-on experience with CI/CD pipeline design and implementation  Solid understanding of cloud...

  • Middle .NET Full Stack Engineer

    7 days ago

    Remote, Wrocław, Gdańsk, Cracow, Warszawa, Czech Republic N-iX Full time

    At least 3 years of commercial experience as Full Stack Software Developer Backend API development using .Net Working knowledge of Azure Functions and serverless architecture Database interaction with Azure SQL using TypeORM or Prisma Basic understanding of data pipelines and integrations with external systems like Snowflake Ability to debug, write clean...

  • Engineering Team Leader

    1 week ago

    Remote, Warsaw, Czech Republic RTB House Full time

    2+ years in a technical leadership role (Team Lead / Engineering Manager). 10+ years in hands-on Full Stack software engineering, with significant experience across frontend, backend, and with some understanding of DevOps aspects. Expertise in Web frontends creation and architecture. Experience with mobile application development (native or hybrid). Proven...

  • Senior Full-Stack Engineer – AI Industry @ ITDS

    2 weeks ago

    Remote, Warszawa, Czech Republic ITDS Full time

    You’re ideal for the role if you have:  - 6+ years of experience as a Full-Stack Engineer in SaaS or AI-driven environments. - Strong experience with TypeScript, including frameworks like Next.js and Node.js (Hono or similar). - Hands-on expertise with PostgreSQL and API development.  - Knowledge of hosting platforms like Vercel and Railway, with a deep...

  • Full Stack .Net Engineer @ Inexto

    2 weeks ago

    Kraków, Czech Republic Inexto Full time

    Qualifications: Advanced and up-to-date .Net / C# skills Advanced and up-to-date knowledge of SQL and relational database programming Experience in Web APIs development (SOAP, REST, gRPC), with a strong focus on versioning and security (OAuth, SAML) Experience with ORM libraries (Entity Framework, Dapper) Experience in high availability distributed systems...