Piotr Tutak

Backend Developer | NodeJs + Python

Poland

About

Experience

  • NodeJs Developer at Pawaful
    Apr 2021 - Present · 5 yrs 3 mos

    Software Developer | NodeJS Backend | Fintech & Identity Systems As a Senior Developer at Pawaful, I primarily focus on backend development while taking end-to-end ownership across the full stack - from deployment (GCP) and backend (Node.js, Express.js) to frontend (React, React Native). I actively contribute to product design and strategic decisions, shaping both architecture and the direction of fintech and identity solutions across Africa. My expertise includes: • API Architecture - designing REST API and microservices architectures (gRPC, NATS). • Authentication & Security - implementing auth solutions (OIDC/SSO, JWT) • KYC & Regulatory Integrations - developing compliance workflows and integrating with KYC/AML providers (ComplyAdvantage, Veriff, FaceTec) • Payments & Financial Solutions - designing payment flows, reconciliation systems and custom financial infrastructure with integrations to Stripe, Railsr and PawaPay Key Projects: • pawaPass (kyc) - designing user verification process and REST API, user conflict resolution logic, KYC modules and dashboards • pawaBank/digMo (fintech) - digital bank, designed and implemented onboarding (2FA, phone verification, authorization, KYC), payment flows (transactions, reconciliation), and integrations with external partners • R&D Projects - smart contract integrations for crypto-related (Privy) transactions

  • Python Developer at STX Next
    Jan 2016 - Mar 2021 · 5 yrs 3 mos

    Software Developer | Python Backend & Frontend (React / Angular) I started my career as a Junior Developer and grew through Mid to Senior level, working across multiple projects and technology stacks. I was responsible for designing and developing complete backend solutions in Python, as well as contributing to frontend development using React and Angular. Key responsibilities and experience: • Building and maintaining backend services and APIs in Python • Developing full-stack features with React and Angular • Collaborating with cross-functional teams (design, QA, product) to deliver end-to-end features • As a Senior Developer, also providing technical consulting and guidance for smaller projects

  • Django Developer at National Institute of Telecommunications
    Apr 2015 - Dec 2015 · 9 mos

    Python, Django, Javascript

  • Python Developer at White Hats
    Jul 2014 - Sep 2014 · 3 mos

    Staż.