Senior Full-Stack Software Engineer (Remote in Poland)

Traveltechessentialist; Poznań; Remote; PLN 180,000 - 240,000; Full time

Job summary

A dynamic tech company in Poland is seeking a Senior Full-Stack Software Engineer to design scalable systems and solve technical challenges. In this role, you will develop backend services and front-end features using Python/Django and TypeScript/React. The ideal candidate will have over 5 years of experience in software engineering and a strong background in distributed applications. This position offers opportunities to work in a fast-paced environment that values innovation and teamwork.

Qualifications

• 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.

Responsibilities

• Design, build, and maintain high-performance backend services.
• Develop front-end features in TypeScript/React.
• Implement complex business logic and filtering algorithms.

Skills

Software engineering

Distributed systems

Python/Django

Java/Kotlin

TypeScript/React

Linux environments

Performance optimization

Collaboration

Fluent in English

Tools

Kubernetes

AWS

Terraform

Job description

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Our cutting-edge technology and machine learning solutions replace the outdated, manual processes that slow companies down — unlocking cost savings, efficiency, and smarter decisions.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.

Come shape the future of business travel with us!

What you'll do:

• 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

About you:

• 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

Bonus points if you have:

• Experience with the travel industry (especially GDS APIs like Sabre, Amadeus, or Travelport)
• Hands-on with Kubernetes, AWS, Terraform, and CI/CD practices
• Contributions to open-source projects or notable side projects
• Familiarity with agile methodologies and collaborative product development

Our technology stack:

• Backend: Python, Django, Kotlin
• Frontend: TypeScript, React
• Infrastructure: Kubernetes, AWS, Terraform
• Data: High-scale pipelines & distributed systems

We are proud to be an equal opportunity workplace. We provide employment opportunities without regard to race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or expression, or veteran status.