Full Stack Engineer

September 24, 2026

Remote

Senior

Warsaw, Poland

Description

Kalepa is building professional-grade AI systems for the $7T insurance industry, with products already in production at leading insurers. The company is hiring a Full Stack Engineer to work on advanced systems spanning NLP, firmographic data, and entity resolution, at the intersection of large data pipelines, distributed systems, ML models, and robust infrastructure. The role is fully remote from Europe, with onsite team events in Warsaw and global offsites, and offers a salary range of $80k–$105k plus significant equity. Engineers collaborate with a global team of full-stack, data, ML, and DevOps specialists.

Responsibilities

Solve problems at the intersection of large and performant data pipelines, distributed systems, and machine learning models
Work on advanced systems including NLP, firmographic data, and entity resolution
Collaborate with a global team of full-stack, data, ML, and DevOps engineers
Build scalable and reliable backend solutions as the company continues to grow
Take significant impact on the company's technology and business as a core engineer

Requirements

3+ years of software engineering experience building and shipping production systems
Experience with a modern frontend framework, preferably React
Strong knowledge of JavaScript and TypeScript, comfort with Python
Strong fundamentals in system design, debugging, and problem solving
Comfortable with relational databases, ideally PostgreSQL
Experience with cloud environments and serverless technologies such as Lambda and EC2
Experience with asynchronous workflows and distributed systems
Take ownership of work and drive projects to completion with limited oversight
Communicate proactively, surfacing blockers and keeping stakeholders in the loop
Enjoy iterative improvement and care deeply about code quality
Curiosity about AI, data, and real-world applications of machine learning
Value high standards, direct feedback, meritocracy, and transparency

Conditions

Fully remote work from anywhere in Europe
Onsite team events in Warsaw and global team offsites
20 days of PTO a year
Gym, phone, and learning stipend reimbursement
Significant equity options package
Competitive salary based on experience level
Real responsibility and production impact from day one

ReactJavaScriptTypeScriptPythonPostgreSQLAWS LambdaEC2ServerlessNLPinsurance / insurtech aiOwnershipProactive communicationIterative improvement

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