ahiipsa

Senior Frontend Engineer

Senior Frontend Engineer. Five years on DeFi and cross-chain dApps: product scoping, architecture, on-chain integration, production delivery. Built the SingularityFinance frontend as the leading contributor, and the cross-chain bridge UI at Harmony. 19 years in web overall.



Experience: 11 years

Yearly salary: $130,000

Hourly rate: $70

Nationality: 🇧🇾 Belarus

Residency: 🇦🇲 Armenia


Experience

Senior Front end Engineer
SingularityFinance
2023 - 2026
Nx monorepo of multiple Next.js / React / TypeScript apps and shared libraries. Top contributor across 2.5 years: ~40% of commits, ~230 tickets closed. - Delivered Staking end-to-end. Multiple staking pools. Stake, unstake, claim transactions on mainnet and testnet, points dashboard. Integrated bridge and DEX modules. https://singularityfinance.ai/staking - Shipped Capital Manager on a product vision led by the blockchain engineer / PO. Multi-asset, multi-chain UI with risk visualization. Unified token actions (stake, migrate, deposit, withdraw). CoinGecko price feed integration. https://singularityfinance.ai/capital_manager - Launchpad: a full DeFi participation flow. 5-tier membership system tied to SREP staking (1x-10x allocation multipliers), mandatory KYC, snapshot logic, on-chain deposit and claim, partner-protocol integrations. Powered 5+ launched projects. https://singularitydao.ai/launchpad - Cut build time from 45 min to 12 min (3.7x speedup) and reduced production bundle size by 50%. Achieved through code splitting, dependency cleanup, and next.js tuning. - Led migrations: Pages to App Router (Next.js 15), wagmi v1 to v2, @tanstack/react-query v4 to v5. Enabled TypeScript strict mode across the codebase (resolved 800+ type errors in 176 files).
Frontend Engineer (Web3)
Harmony
2021 - 2023
Built and maintained product frontends for cross-chain bridges and ecosystem dApps. - Ethereum - Harmony Bridge: primary frontend for the cross-chain bridge between Ethereum, Binance Smart Chain, and Harmony. https://github.com/harmony-one/ethhmy-bridge.frontend - LayerZero Bridge UI: frontend for the LayerZero-based cross-chain bridge. https://github.com/harmony-one/layerzero-bridge.frontend - Contributed to and integrated the Harmony Web3 SDK, used by internal and ecosystem dApps. - Bitcoin bridge: frontend for cross-chain BTC transfers into the Harmony ecosystem.
Frontend Team Lead
Science Guide
2019 - 2021
Led a team of 5 frontend engineers. Hiring, code review, sprint planning, and delivery for the main product.
Frontend Team Lead
SuperJob
2014 - 2019
Frontend lead on a product serving 1M+ daily active users. Responsible for performance, refactoring, and delivery cadence across major rewrites.
Earlier roles
Others
2007 - 2014
JavaScript engineering at MEGAVISOR and several web startups.

Skills

defi
nextjs
react
smart-contract
solidity
tailwind
typescript
web3js
front-end
english
russian