Bogdan Egikov
Senior Software Engineer – 12+ years shipping fintech and adtech products end to end across web and mobile, with an AI-native, agentic way of building software.
About
01 — WhoI started in physics, not computer science — and it shows in how I work. I look for the underlying pattern before I write the first line of code, then build systems that hold up once real users, real money, or real patients are on the other end.
Over twelve years I've architected and led delivery across fintech, adtech, and Web3 – usually as the first engineer, sometimes as CTO, always accountable for what ships. Lately my focus is AI-native engineering: agentic coding workflows built on Claude Code and MCP that measurably raise how fast a team delivers. On the side I run DaySync, a booking SaaS I built solo – live in the App Store, Google Play, and on the web.
Selected Work
02 — What
Built for employers and clients — the products belong to them, so they are described here, not shown.
Phreesia Provider Connect
Team lead of 7 · via Lineate
Client platform · internalAudience Builder – an adtech campaign-targeting platform for one of the largest US healthcare companies. Built hands-on (React/Next.js + NestJS monorepo over AWS Airflow/Athena) while leading a team of 7; agentic AI workflows raised delivery throughput ~40%.
KViTKA
CTO · lead full-stack · Global Ukraine
Employer product · offlineFintech for the Ukrainian diaspora — EUR vIBANs, multi-asset wallets, a VISA virtual card. Zero to first production release in ~3 months, owning architecture, app, and backend.
RunBuggy
Mobile developer · via Codemotion
Client product · liveLogistics app for car dealers to manage and track vehicle-transit orders in real time – serving 6,000+ verified transporters.
Trastra
Frontend & mobile · via Codemotion
Employer product · offlineCrypto-banking platform across web and mobile serving 400K+ users — OTP auth, full KYC flow, banking and crypto API integrations, real-time transaction alerts.
Velas Account
Mobile developer · Velas
Employer product · offlineOne-click, passwordless access to Web3 apps — secure cryptographic key management and QR-based dApp connect/sign flows.
How I Build
03 — HowI work AI-natively: agents write a large share of the code, and my job is architecture, specs, and review. On my last team this raised delivery throughput ~40% — tracked in sprint velocity, not vibes.
- 01
Spec
Requirements distilled into a design doc before any code
- 02
Claude Code agents
Agentic implementation across mobile, web, and backend repos
- 03
MCP integrations
Custom servers wire agents into the team's real tooling
- 04
AI-assisted review & tests
Automated review passes and test generation on every change
- 05
Ship
~40% faster team delivery – incl. a client platform redesign shipped in ~26h vs a 56–80h estimate
Experience
04 — Where- 2025 — 2026
Lineate · Phreesia
Senior Engineer / Team Lead
Built Audience Builder – an adtech campaign-targeting platform for one of the largest US healthcare companies – hands-on (React/Next.js + NestJS) while leading a cross-functional team of 7; agentic AI workflows raised delivery throughput ~40%.
- 2023 — 2025
Global Ukraine · KViTKA
CTO / Lead Full-Stack
Took a diaspora-banking fintech from a blank repo to production in ~3 months — EUR vIBANs, multi-asset wallets, a VISA virtual card — owning architecture, app, and backend end to end.
- 2023 — now
DaySync
Independent product
Booking & business-management SaaS for salons – iOS, Android, and web, designed, built, and operated solo; live in the App Store & Google Play, with AI-driven E2E testing (Maestro + MCP, Playwright).
- 2021 — 2023
Velas
Mobile Developer
Built Velas Account — one-click, passwordless access to Web3 apps with secure cryptographic key management and QR-based dApp connect/sign flows.
- 2017 — 2021
Codemotion · Trastra & Famepick
Frontend & Mobile Developer
Delivered the Trastra crypto-banking platform (web + mobile, 400K+ users, full KYC), built the RunBuggy logistics app serving 6,000+ verified transporters, and built front-end for Famepick, a creator–brand SaaS.
- 2013 — 2017
Apex LTD
Full-Stack Developer
Led the front-end of a cloud ERP unifying accounting, inventory, banking, and CRM; drove the migration from a .NET stack to a modern JavaScript frontend.
Stack
05 — With whatContact
06 — Say helloOpen to senior and lead engineering roles, fractional CTO work, and hard problems in fintech, adtech, and beyond. The fastest way to reach me:
sledyuk@gmail.com