Fullstack Developer (Poland)

Chooose

Warsaw, Poland remote Until 8/21/2026 First posted February 13, 2026 Last posted May 2, 2026

Job description

Chooose builds software to enable the lower carbon fuel value chain.

Companies like Delta Air Lines, Cathay Pacific, British Airways, and Microsoft use the Chooose platform to build, operate, and scale their lower carbon fuel programs (typically referred to as Sustainable Aviation Fuel, or SAF), and to advance voluntary and compliance carbon management initiatives.

With offices in Miami and Oslo, and remote employees across the US and Europe, Chooose is relentlessly focused on delivering enterprise software products to enable our customers to drive lower carbon fuel adoption. The company has raised $50M from leading venture capital and strategic investors.

This opportunity is exclusively available as a B2B arrangement

The role

We are looking for someone who is open to new technologies, not afraid to experiment, and eager to learn. The ideal candidate will be self-driven and able to take charge and make decisions.

Depending on the team you join, you'll could be developing supplier-facing applications or creating internal tools to improve efficiency within Chooose. In either case, you'll be utilizing modern AI technologies.

This is a B2B remote contract opportunity, approx. 40 hours a week, and must be based in Poland.

What you'll do

Maintain and scale complex front-end (React, Typescript) and back-end architecture (C#/.net)
Create accessible and user-friendly components for an internal Design System
Develop and maintain Python-based data processing pipelines and command-line interface (CLI) tools.
Develop and integrate AI/ML solutions into company processes and external facing products
Drive efficiency internally through scalable processes and
Write unit tests or integration tests (Vitest)
Maintain and scale complex services

What you bring to the table

5+ years of hands-on experience
Strong organizational and project management skills
Excellent English verbal communication skills
Critical problem-solving skills
Meticulous attention to detail
Degree in computer science or equivalent
Must be based in Poland

You’ll stand out if you have technical knowledge of

Azure (Azure functions)
Integrations
Python (Fast API)
You have some experience incorporating AI features into SaaS products

The interview process

At Chooose, we prioritize transparency throughout our interview process. If your qualifications look like a fit, we’ll begin with an introductory conversation where you'll have the chance to discuss your experience and learn more about our company. The second phase varies depending on the role and will most likely involve a practical exercise and live session so you can show your work. The third and final phase consists of a one-on-one in-person conversation with a member of our leadership team. The process should take approx. 4 weeks. While we strive to keep to this timeline, the occasional adjustment may occur; we’re focused on ensuring for enough time to get to know one another.

We value diversity and believe forming teams in which everyone can be their authentic self is key to our success. We encourage people from underrepresented backgrounds and different industries to apply.

Compensation will be based on experience and skill, commensurate with market rates, and will include both a monthly fee and equity in Chooose.

Chooose is an equal opportunity employer and does not discriminate based on race, color, religion (creed), gender, gender expression, age, national origin (ancestry), disability, marital status, sexual orientation, or military status. We are committed to providing an inclusive and welcoming environment to our employees and welcome input from candidates and employees on how we can enhance our inclusiveness.

Prerequisite for Employment: Chooose may request to conduct background checks on prospective applicants to verify the information provided in the CV, transcripts, and other documentation. This background check may be carried out by our partner and will not be conducted without the applicant's prior consent. Prospective applicants will receive more information about this.

About this role

Summary

Develop and maintain fullstack applications, integrate AI/ML solutions, ensure scalability and usability

Job title

Fullstack Developer (Poland)

Experience level

5+ years

Industry

software

Location requirements

remote in Poland; must be based in Poland

Salary

Not specified

Management role

Skills & keywords

Required skills

reacttypescriptc#.netpythonunit testingAZUREintegrations

Preferred skills

fast apiai features

Specializations

fullstackreacttypescriptc#.netpythonaiml

Locations

Structured locations inferred from the posting.

Poland

Remote Country