jmikolajczyk
Senior Engineer
I am a senior software developer specializing in building and delivering robust, fully functional software solutions. I am passionate about continuous learning and embracing new challenges that help me expand my skills and knowledge.
I take a business-oriented approach to software development, focusing on creating solutions that bring real value.
I take a business-oriented approach to software development, focusing on creating solutions that bring real value.
Experience: 9 years
Yearly salary: $140,000
Hourly rate: $80
Nationality: 🇵🇱 Poland
Residency: 🇵🇱 Poland
Experience
Senior Engineer
Golem Foundation / Octant Labs 2023 - 2026
-Lead frontend for the Octant v2 staking app and admin tools, creating clear staking flows, reward calculators, and a flexible funds distribution module. - Built strong Web3 support including multisig handling, contract wallet checks, delegated accounts, and steady wallet session recovery. - Delivered full stack features in a shared codebase, covering API work, on chain event tracking, and a published TypeScript toolkit with tests.
CTO,Co-Founder
Meetsales 2020 - 2024
- Designed and built a B2B SaaS multi-tenant web platform enabling real-time communication, live product presentations, ordering, and payments for multiple users with different access privileges. - Product ownership - Leading and mentoring dev team
Team Leader Frontend Developer
Divante 2018 - 2020
- R&D team member - Technical consultant in HR team - Work on architecture of the projects - Taking care of the team needs
Skills
ci-cd
co-founder
communication
crypto
defi
erc-1155
erc-20
erc-721
erc-777
ethereum
gnosis
node
react
full-stack
english
polish