Description

Engineering leader and hands-on engineer with 10+ years of experience building and scaling products and teams. Led development of a foundational payroll platform supporting 90+ countries, scaling 100× (700 → 70k payslips). Experienced in hiring, mentoring, and growing engineers into senior and staff roles. Currently driving full AI adoption across engineering — using Claude and agentic workflows to transform how the team delivers software.

Industry field of expertise

Languages

Polish
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

Remote
Engineering Team Leader / Full stack engineer
DIGITAL AND IT
April 2021 - Today (5 years and 4 months)
Led a team of up to 10 engineers (frontend + backend) within a foundational payroll domain
- Built and evolved the core payroll processing platform, used by 10+ teams across multiple domains
- Scaled system throughput 100× — from 700 to 70k payslips — across 90+ countries
- Contributed to scaling the engineering org from ~25 to 200+ engineers; drove domain restructuring and headcount planning
- Conducted 100+ interviews and 50+ coding challenges; owned hiring across all seniority levels
- Mentored engineers from mid → senior → staff; led performance reviews and promotion proposals
- Defined architecture and platform direction enabling other teams to scale independently
- Deliver end-to-end features in React and Elixir/Phoenix as a hands-on contributor alongside leadership responsibilities
- Drove AI adoption across the team using Claude and agentic workflows; targeting 100% AI-assisted code delivery and onboarding product teams into AI-native practices
Elixir React.js JavaScript AI Agent Tech Lead
Silverfin
Frontend Javascript Developer
August 2018 - April 2021 (2 years and 8 months)
Led frontend architecture evolution: migration from jQuery to Vue.js across 5 teams
- Defined frontend standards (guidelines, linters, documentation), improving scalability and consistency
- Co-owned and scaled a design system used across multiple teams
- Built key product features for accounting workflows (communication systems, task management, reconciliation)
- Delivered Vue.js workshops for 20+ engineers across 5 teams, enabling adoption by backend engineers
- Mentored engineers and supported onboarding to modern frontend architecture
JavaScript React.js Ruby on Rails VueJS
AirHelp
Full-stack Developer
December 2017 - August 2018 (8 months)
Kraków, Poland
Owned frontend architecture of the operations backoffice — a React application used daily by 300+ agents to process hundreds of thousands of flight delay and reimbursement claims
- Built an internal checklist system with lightweight OCR to prefill agent workflows, significantly reducing manual data entry during claim processing
Ruby on Rails React.js JavaScript