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Senior Software Engineer

Poland🌐 Remote💼 Full-time🗓 2026-09-11 → 2026-09-26

Core

Building scalable financial products and platforms for small businesses, including credit cards, spend management, and savings tools.

Role type

Senior Software Engineer (B2B Fintech)

Builds

Business credit card platform, SME spend management tools, savings products, and financial infrastructure

Domain

Fintech / Small Business Finance

Deliverable

production ML models | product features

Required skills

C#, .Net, SQL Server, architectural decision-making, unit and integration testing, distributed systems knowledge

Preferred skills

React, Typescript, Flutter, Dart, MongoDB, Azure, GCP

Technologies

C#, .Net, .Net Core, React, Typescript, Flutter, Dart, SQL Server, MongoDB, Azure, GCP

Responsibilities

Designing and building robust, scalable solutions; participating in architectural decisions; writing bulletproof unit and integration tests; mentoring engineers

Seniority

Senior, hands-on IC with ownership

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