Senior Software Engineer (Remote in Poland)

Oversee; Polska; Remote; PLN 200,000 - 320,000; Full time

Job summary

Oversee is building practical AI solutions for travel with FareSaver and HotelSaver, supporting billions in travel spend. We seek a Senior Full-Stack Software Engineer to design scalable systems, optimize performance, and ship features with real business impact.

You will work across backend (Python/Django, JVM), frontend (TypeScript/React), and infrastructure (Kubernetes, AWS, Terraform), collaborating with product teams in a fast-moving environment. Fluency in English is essential.

Qualifications

• 5+ years of software engineering experience delivering production systems.
• Proven experience with Python/Django and JVM stack.
• Experience with TypeScript/React and Linux environments.
• Strong ownership of code quality and technical decisions.
• Excellent collaboration and communication in English.

Responsibilities

• Design, build, and maintain high-performance backend services and data pipelines.
• Develop frontend features in TypeScript/React to realize complex ideas.
• Implement business logic and filtering algorithms powering the platform.
• Collaborate with product and business teams to deliver impactful features.
• Integrate with third-party APIs (REST/SOAP) and ensure interoperability.

Skills

Distributed systems design

Team collaboration

Performance optimization

English communication

Proactive learning

Tools

Python

Django

Java/Kotlin

TypeScript

React

Kubernetes

AWS

Terraform

CI/CD

Job description

At Oversee, we build practical AI solutions for the $1.6 trillion global travel industry. For over a decade, we have helped travel agencies and global enterprises cut travel costs and work more efficiently. Our AI-based reshopping products, FareSaver for air and HotelSaver for hotels, track booked trips and automatically rebook them when a better rate becomes available. AgentSee, our agentic AI platform, works alongside travel agents. It reads traveler requests, handles bookings and changes, and takes on routine servicing tasks, so agents can manage more trips while improving service quality. We work with the largest travel agencies and fortune 500 companies, supporting over $15B in annual booking volume for more than 11,000 customers in over 60 countries. If you want to solve real problems with a focused team in a fast-moving market, 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.

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;
• Use AI-assisted development tools to move faster across coding, testing, debugging, and navigating complex systems;
• 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
• Comfortable using modern AI coding tools as part of your day-to-day engineering workflow while maintaining strong ownership of code quality and technical decisions
• 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.