Aleksandr Vaulin

Senior Software Engineer

📍 Remote

🟢Aping In

Senior Software Engineer with 12+ years of experience building high-performance backend systems, recently focused on algorithmic trading and blockchain/DeFi infrastructure. Architected a multi-exchange platform integrating 25+ DeFi protocols, enabling strategies achieving up to 60% APY and reducing trade slippage by 15–25%.

Work Preferences

Salary

USD 60,000 – 300,000

Skills

Algorithmic Trading Systems10/10

C#10/10

DeFi Protocol Integration10/10

Go10/10

Golang10/10

Kubernetes (10/10)Node.js (10/10)TypeScript (10/10)PostgreSQL (8/10)Docker (8/10)React (8/10)Redis (8/10)Rust (7/10)Team Management (7/10)AWS (7/10)Terraform (6/10)MySQL (6/10)DynamoDB (6/10)Elasticsearch (6/10)Solidity (6/10)

Work Experience

Senior Software Engineer

Independent Trading Research Group

Oct 2021 — Present

Designed and built a multi-exchange trading platform from scratch, unifying CEX (Binance, Bybit, OKX) and DEX (Hyperliquid, Lighter). Launched an algorithmic strategy achieving peak APY of ~60%. Developed an aggregator for 4 DEXs and 200+ liquidity pools, reducing average slippage by 15-25%. Built distributed infrastructure for 10,000+ accounts. Optimized routing algorithm, reducing resource allocations by 70% and delivering latency under 10ms. Developed SDK for 5 crypto exchanges. Implemented integrations with 25+ DeFi protocols and cross-chain bridges.

Senior Web Application Developer

Klika Tech

Oct 2019 — Sept 2021

Built a leave management service from scratch, reducing approval cycle time from 4 days to 1 day. Developed backend of a SaaS platform, accelerating key workflows from 10s to 2s. Optimized client migration process, cutting duration from several days to one day. Automated manual processes eliminating paper-based documentation. Participated in planning and code reviews in an international team of 10+ engineers.

Tech Lead

LineApp

Dec 2017 — Oct 2019

Designed and implemented a CRM, reducing ticket processing time from hours to minutes. Built a social platform from scratch supporting 500+ concurrent users. Led a team of 5, establishing processes and stabilizing release timelines. Delivered end-to-end implementations for 3 projects from concept to production. Conducted 10+ technical interviews and established code reviews and mentoring.

Education

Perm State University

Bachelor's · Information Technology

2011 – 2014