Tomas Kasnauskas

Lead Software Engineer | Frontend-Leaning Full-Stack Engineer

Product Engineer with 12+ years of experience building complex digital products. Deep expertise in React, TypeScript, and frontend architecture, with strong Node.js, API, and database experience. Turns ambiguous product problems into reliable production systems while working closely with product and engineering teams.

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Portfolio

Explore my most recent projects and the technical solutions I've architected

Edge Multi-Chain Trading Platform

Edge2023

Led product engineering for a Next.js multi-chain trading platform from concept to production, including swaps, limit orders, trading bots, charts, watchlists, and wallet-based execution across EVM and Solana.

Next.jsEVMSolana+3 more
Lead Product Engineer

Almanak Strategy Deployment Platform

Almanak2023 - 2026

React/Next.js strategy deployment platform built from zero to production, with internal API integrations and shared authentication, session, and data layers built around Hasura/Nhost and Privy.

ReactNext.jsTypeScript+4 more
Lead Software Engineer

Almanak AI Strategy Builder

Almanak2023 - 2026

Integrated the AI Strategy Builder with FastAPI/LangChain and the deployment platform, enabling users to generate and deploy strategies in a single flow.

ReactNext.jsTypeScript+4 more
Lead Software Engineer

Obligate Platform

Obligate AG2020 - 2023

Complex React platform taken over from an external agency, redesigned and rebuilt in Next.js, then migrated from a private Hyperledger network to public Solana.

ReactNext.jsTypeScript+3 more
Lead Software Engineer / Senior Frontend Engineer

Selected Impact

Almanak platforms

Built two React/Next.js platforms from zero to production, serving 20k+ daily sessions at peak and supporting products with $160M+ in total value locked.

Edge transaction reliability

Designed adaptive retry and recovery flows that reduced Solana swap failure rates for volatile and low-liquidity tokens from approximately 40% to 5%.

Obligate frontend transformation

Took over and extended a complex React frontend, then led product redesign, a complete rebuild in Next.js, and frontend architecture during the migration from private Hyperledger infrastructure to public Solana.

Experience Timeline

Lead Software Engineer

2023 - 2026
Almanak

Built two React/Next.js platforms from zero to production, serving 20k+ daily sessions at peak and supporting products with $160M+ in total value locked.

Owned frontend architecture and delivery across both platforms, as well as internal API integrations and shared authentication, session, and data layers built around Hasura/Nhost and Privy.

Integrated the AI Strategy Builder with FastAPI/LangChain and the deployment platform, enabling users to generate and deploy strategies in a single flow.

Expanded into full-stack ownership across frontend, APIs, databases, and smart contracts, shaping data flows between backend services, browser wallets, and on-chain systems.

Owned critical launch flows across frontend, APIs, databases, and smart contracts, stabilising production during traffic spikes, bot activity, and last-minute launch changes.

Lead Product Engineer

2023
Edge

Led product engineering for a Next.js multi-chain trading platform from concept to production, including swaps, limit orders, trading bots, charts, watchlists, and wallet-based execution across EVM and Solana.

Designed adaptive retry and recovery flows that reduced Solana swap failure rates for volatile and low-liquidity tokens from approximately 40% to 5%.

Owned frontend architecture, supporting backend services, and third-party integrations across market data, authentication, wallets, real-time monitoring, and transaction execution.

Lead Software Engineer / Senior Frontend Engineer

2020 - 2023
Obligate AG

Took over and extended a complex React frontend, then led product redesign and complete rebuild in Next.js.

Led frontend architecture during the platform's migration from a private Hyperledger network to public Solana, redesigning integrations, data flows, and transaction handling around the existing Node.js backend.

Made hiring decisions for frontend and design roles alongside the CTO and backend lead, supported engineers through regular 1:1s, and worked with product stakeholders to shape roadmap and delivery.

Core Expertise

Product discovery & 0-to-1 delivery

Frontend architecture

React / TypeScript / Next.js

Full-stack development

Node.js / GraphQL / REST APIs

System design

Let's Connect

Tomas Kasnauskas

Lead Software Engineer | Frontend-Leaning Full-Stack Engineer

t.kasnauskas@gmail.com

Lithuania (EU, Remote)