---
title: "Oleg Klimakov — Lead Frontend Developer"
description: "Lead Frontend Developer in Helsinki. Web & mobile products with Angular and Capacitor, AI adoption in engineering, conference speaker."
url: "https://klimakov.me/"
---

LEAD FRONTEND DEVELOPER · WEB · MOBILE · AI

# Oleg Klimakov

I lead frontend engineering, ship web & mobile products, and drive AI adoption — hands-on, from architecture to the last pixel.

BASED IN HELSINKI, FINLAND

[GET IN TOUCH→](https://klimakov.me/#contact)

## ABOUT

![Portrait of Oleg Klimakov](https://klimakov.me/_astro/photo.BPaGzRQM_Zla4Cs.webp)

Lead Frontend Developer with 10+ years of experience — from SmartTV apps and food-tech platforms to medical software at Siemens Healthineers. I lead the team and own product quality, drive AI adoption through trainings and tooling — using it daily myself — and speak at conferences.

- EXPERIENCE

  10+ years

- FOCUS

  Web · Mobile · AI adoption

- STACK

  Angular · TS · Capacitor · RN

- LOCATION

  Helsinki, Finland

- LANGUAGES

  English · Russian

- SPEAKING

  Conferences & trainings

- CERTIFIED

  [GitHub Agentic AI Developer](https://learn.microsoft.com/users/OlegKlimakov-4699/credentials/16B81AD5AA9C0A4C)

## EXPERIENCE

2025 — NOW

### Lead Frontend Developer

SIEMENS HEALTHINEERS · HELSINKI

Leading the frontend team and owning product quality. Driving AI adoption across the company — internal trainings, tooling and agentic workflows in everyday engineering.

TEAM LEADERSHIP · AI ADOPTION · ANGULAR

2021 — 2025

### Senior Software Engineer

SIEMENS HEALTHINEERS · HELSINKI

Led the migration of a hybrid app to a fully-fledged Angular application and rebuilt the login & activation flow. Lead Mobile Developer since 2023: releases, Capacitor 4→5 migration, biometric auth. Varian Value Champion 2023.

ANGULAR · TYPESCRIPT · CAPACITOR · SCSS

2018 — 2021

### Senior Angular Developer

ENEL X · REMOTE (US)

Rewrote a large part of the smart-charging platform, authored the team’s frontend style guide, ran code reviews, interviews and employee training.

ANGULAR · TYPESCRIPT · RXJS

2017 — 2018

### Middle Frontend Developer

DELIVERY CLUB · MOSCOW

Carved the frontend out of a PHP-generated site into a standalone app, combined AngularJS and Angular, held test coverage at \~80%.

ANGULAR · NGRX · RXJS

2017

### Middle Frontend Developer

TELEMATICS-ONE · MOSCOW

Built the product admin panel and custom decorators improving performance and code style.

ANGULAR · ANGULARJS · RXJS

2016 — 2017

### SmartTV Frontend Developer

TVZAVR · MOSCOW

Created an advertising project from scratch and maintained SmartTV apps for an online cinema.

VANILLA JS · KNOCKOUT JS

## SELECTED PROJECTS

### [Fretwire](https://klimakov.me/fretwire/)

A native macOS Git client that opens on the commit graph — staging, diffs and every branch operation hang off it.

MACOS DEVELOPER TOOL · 2026 · SWIFT / SWIFTUI / GIT

### [RoundTick](https://klimakov.me/roundtick/)

HIIT & Tabata timer for iPhone and Apple Watch.

IOS APP · 2026 · SWIFTUI / WATCHOS / LIVE ACTIVITIES

### [Caliper](https://klimakov.me/caliper/)

A native macOS menu bar system monitor with real history — built not to become the load it measures.

MACOS APP · 2026 · SWIFT / SWIFTUI / APPKIT / SQLITE

[ALL PROJECTS5](https://klimakov.me/projects/)

## CONTACT

## Let’s build something.

<oleg@klimakov.me>

- [GITHUB](https://github.com/olegklimakov)
- [LINKEDIN](https://www.linkedin.com/in/klimakovoleg)
- [TELEGRAM](https://t.me/klimakov)