Dynamic Senior Backend Engineer with over 8 years of expertise in blockchain integrations and wallet infrastructure. Proven track record in designing and deploying scalable backend solutions that support multi-chain ecosystems and high-performance applications. Notable achievements include enhancing campaign targeting accuracy by over 30% and successfully managing airdrop distributions to 50,000+ wallets. Committed to driving innovation and ensuring robust security in decentralized systems, poised to deliver exceptional value to any organization aiming to leverage blockchain technology.

Dynamic Senior Backend Engineer with over 8 years of expertise in blockchain integrations and wallet infrastructure. Proven track record in designing and deploying scalable backend solutions that support multi-chain ecosystems and high-performance applications. Notable achievements include enhancing campaign targeting accuracy by over 30% and successfully managing airdrop distributions to 50,000+ wallets. Committed to driving innovation and ensuring robust security in decentralized systems, poised to deliver exceptional value to any organization aiming to leverage blockchain technology.

Available to hire

Dynamic Senior Backend Engineer with over 8 years of expertise in blockchain integrations and wallet infrastructure. Proven track record in designing and deploying scalable backend solutions that support multi-chain ecosystems and high-performance applications. Notable achievements include enhancing campaign targeting accuracy by over 30% and successfully managing airdrop distributions to 50,000+ wallets. Committed to driving innovation and ensuring robust security in decentralized systems, poised to deliver exceptional value to any organization aiming to leverage blockchain technology.

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Experience Level

Expert
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Expert
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Expert
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Intermediate
Beginner
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Language

English
Advanced

Work Experience

Senior Blockchain Backend Lead at Toptal, NY
May 1, 2023 - November 1, 2025
Spearheaded backend protocol engineering for a Bitcoin-fork private network PoC, establishing validator infrastructure and RPC services for internal and partner testing; provided snapshot-based airdrop distribution logic for a USD Stable-asset program; led security reviews across product, DevOps, and external stakeholders, reducing release cycle rework by ~25% via threat modeling and checklists.
Co-Founder & Chief Engineer at Pengolin Coin / PGO
August 1, 2018 - May 1, 2024
Designed efficient NFT auction contracts reducing transaction costs by 35-50%; standardized deployment runbooks and audit-ready documentation, reducing release preparation time by ~30%; implemented Merkle-proof distribution for over 200k claimants with dashboards for monitoring.
Senior Blockchain / Backend Engineer at Toptal, NY
March 1, 2022 - November 1, 2023
Designed gas-efficient NFT auction contracts reducing transaction costs by 35-50% through storage/event optimization and call data minimization; standardized deployment runbooks and audit-ready documentation across client teams.
Senior Backend / Systems Engineer at RevBits, NY
August 1, 2018 - February 1, 2022
Directed core architecture and delivery of an enterprise Privileged Access Management (PAM) platform across Windows endpoints and server fleets in regulated financial and healthcare environments; supported deployments of over 50,000 managed identities and thousands of protected hosts; implemented MFA/2FA controls (U2F, WebAuthn, OTP) and improved audit outcomes for SOC 2/ISO reviews; integrated HSM, smart-card, and biometric modules.
CTO / Senior Backend Engineer at ORO MLMNVO (Crypto-Financial Products)
April 1, 2018 - May 1, 2021
Oversaw backend delivery for crypto-financial products used by banking and gaming clients; balanced throughput with compliance constraints and release reliability; released multiple PoW/PoS wallets and services; standardized node operations to reduce downtime by ~40%; built explorers and data feeds for Coin MarketCap-style integrations; automated e-commerce SKU ingestion pipelines and onboarding flows.
Senior Backend Engineer at IT 360
April 1, 2019 - May 1, 2020
Architected an Azure-hosted project management platform with EF Core APIs; delivered Django-based survey platforms supporting over 500,000 users; launched bulk email delivery capabilities with monitoring and bounce handling to improve campaign observability and reduce failure rates.
Independent Backend Engineer at Self-employed
February 1, 2015 - July 1, 2018
Produced over 30 blockchain networks and wallets; created payment platforms, gaming backends, and tokens; developed mobile apps (Kotlin/Swift/React Native) integrated with backend APIs; reduced time-to-first-release using shared SDK patterns.

Education

Bachelor's Degree at National University of Laos
May 1, 2010 - September 1, 2014

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Gaming, Financial Services, Media & Entertainment