Senior Backend Developer (Remote in Poland)

Oversee; United States; Remote; USD 100,000 - 160,000; Full time

Job summary

A leading company in business travel management seeks a Senior Software Engineer to enhance their platform. The role focuses on creating high-performance back-end services using Python, Kotlin, and TypeScript, aimed at optimizing travel expenses. Candidates should have over 5 years of experience, a Computer Science degree, and strong collaboration skills. This position contributes directly to significant cost savings for clients and the growth of the company’s product offerings.

Qualifications

• 5+ years of industry experience in software engineering.
• Experience with architectural patterns for distributed applications.
• Strong knowledge of Linux runtime environments.

Responsibilities

• Develop high-performance backend services and data pipelines.
• Track and manage billions in Air and Hotel spend.
• Integrate third-party APIs (REST/SOAP).

Skills

Performance bottleneck resolution

Collaboration skills

Proactive mindset

Fluent communication in English

Education

Computer Science degree

Tools

Python

Kotlin

TypeScript

Linux

Job description

Oversee is revolutionizing how business travel is managed.

Our platform delivers price assurance, advanced travel analytics, and comprehensive reporting capabilities that provide unparalleled visibility into corporate travel spend. We empower organizations to optimize travel programs, significantly reduce costs, and enhance the experience for business travelers worldwide.

The Opportunity

• Help enterprise clients save millions of dollars in travel expenses annually
• Contribute to a sophisticated system managing billions in Air and Hotel spend while tracking hundreds of millions of data points
• Drive growth of our product offerings and expand our client base
• Work with Python, Kotlin, and TypeScript to develop:

* High-performance backend services and data pipelines

* Distributed infrastructure systems

* Complex business logic and intelligent filtering algorithms

* Fare tracking optimization solutions

Your impact:

• Help clients potentially save millions of dollars in travel expenses.
• Contribute to the development of a sophisticated system that efficiently manages billions of dollars in Air and Hotel Spend while automatically tracking hundreds of millions of data points.
• Help Oversee grow its product offering and potential client base considerably.

You have:

• 5+ years of industry experience in software engineering
• Computer Science degree from a leading academic institution
• Proven experience with architectural patterns for distributed, high-scale applications
• Demonstrated ability to solve performance bottlenecks and scale-related challenges
• Experience with either Python/Django, Java/Kotlin or other JVM language, TypeScript/React
• Strong knowledge of Linux runtime environments
• Experience integrating third-party APIs (REST/SOAP)
• Excellent collaboration skills with ability to give and receive constructive feedback
• Fluent written and verbal communication skills in English
• Proactive mindset with eagerness to learn and improve

Preferred Qualifications (Advantages):

• Experience with the travel industry, especially GDS APIs (Sabre/Amadeus/Travelport)
• Contributions to open-source projects or notable side projects
• Experience with Kubernetes, AWS, Terraform, and general DevOps skills
• Familiarity with agile methodologies and CI/CD practices

We are committed to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, or veteran status. We are proud to be an equal opportunity workplace.