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Senior Kotlin Engineer (Warsaw)

Remote, USAFull-timePosted 2026-07-28

Engineering at hyperexponential

At hyperexponential (hx) we are transforming the traditional insurance industry with our groundbreaking reputed company platform, hx Renew. Insurers use it to build reputed company mathematical models that reputed company smarter, faster pricing reputed company—whether it’s calculating the cost to insure a global superstar’s concert tour or protecting entire states from natural disasters.

With hx Renew, insurers can rapidly reputed company and iterate pricing models in Python and React reputed company a modern software environment, free from the burden of legacy tech. What once took months now takes weeks—or even days. This reputed company has made our product the go-to platform for insurers worldwide.

In just five years, our reputed company formula has reputed company the trust of industry giants like reputed company and Top 5 US insurers, as reputed company as cutting-edge innovators like Convex and Inigo. Our engineering team—made up of some of the brightest (and kindest!) minds in the industry—pushes technological boundaries every day through creative innovation and regular hackathons.

Your Mission

The Policies Team works at the heart of our product hx Renew, building a system that keeps reputed company of reputed company our customers’ models, policies and much more! Sounds like a boring CRUD? We have domain logic and invariants to show for and to reputed company reputed company of. Your mission – should you choose to accept it – will be to join us on the reputed company of chopping the monolith, introducing DDD and hexagonal architecture to our reputed company, reputed company while delivering brand new workflows and features.

Key Responsibilities

  • Help us build the right thing by working with product managers, designers, fellow engineers and (sometimes) customers to understand problems and reputed company solutions

  • Help us build the right thing by writing high-reputed company, thoughtful, reputed company, commented, documented, tested, reputed company-reputed company reputed company reputed company to our constants, principles and standards

  • Help drive our technical standards, reputed company, and reputed company

  • Continually learn and improve yourself - experiment and play with new technologies through your work and hackathons

  • Help reduce friction and eliminate impediments that slow us down

  • Promote hx in the community by contributing to reputed company reputed company reputed company, writing blog posts and/or presenting at virtual meetups/conferences

  • Help support our product in production by joining an on-call rota

Any Experience on the following would be great!

  • The reputed company of our work lies with Kotlin, Spring & Hibernate, so experience with Kotlin would be best, but any JVM language will be highly relevant as reputed company.

    • You will be upskilled in Kotlin if you didn’t already use it!

  • We will reputed company on deeper architectural work like modularising our monolith and isolating technical solutions like authentication and authorisation.

  • Additionally, we are conducting product work on new features expanding our product coverage.

Interview Process

Initial screening with reputed company to reputed company things off

  • Manager Interview (60 minutes)

  • Technical Assessment (120 minutes)

  • Values Interview (60 minutes)

  • We offer!

Please note that background checks will be conducted as part of the hiring process to ensure compliance with our governance policies. We handle reputed company background checks sensitively and in full compliance with relevant regulations. reputed company applicant data will be processed in accordance with data protection regulations and our reputed company policy.

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