salehhayat01
Software Engineer
Full Stack Engineer with 5+ years of experience building scalable backend systems and blockchain-integrated applications across EVM and SUI ecosystems. Strong expertise in TypeScript, NestJS, PostgreSQL, and Rust, with practical experience developing, modifying, and deploying Solidity smart contracts for reward distribution and incentive mechanisms. Proven track record of optimizing distributed systems (10x throughput improvement) and designing data-intensive ranking and aggregation engines serving millions of users. Passionate about building resilient infrastructure that bridges backend systems with on-chain execution.
Experience: 5 years
Yearly salary: $110,000
Hourly rate: $70
Nationality: 🇵🇰 Pakistan
Experience
Senior Software Engineer
SeedLabs 2022 - 2024
Led frontend integration and designed backend services for Bluefin’s custom spot aggregator, implementing high-performance modules in Rust, including optimal route-finding logic. Increased system scalability from 7 TPS to 70 TPS via horizontal service architecture improvements. Led the development of Bluefin's Growth Service, an event-driven system designed with Kafka JS, Nest.JS microservices, and PostgreSQL. Reduced API response times from 2s to <200ms via pre-aggregated tables and PostgreSQL triggers. Automated deployment processes with GitHub Actions and AWS. Conducted root cause analysis on incidents, documented preventive measures in Run Books to mitigate future recurrences. Implemented structured logging with Datadog + PagerDuty alerting. Developed a resilient application by adopting Test-Driven Development (TDD) practices, leveraging Mocha.js for thorough unit testing. Actively participated in on-call rotations, swiftly responding to PagerDuty alerts, addressing system issues promptly, and ensuring high service reliability with minimal downtime.
Software Engineer II (Frontend Lead)
SeedLabs 2021 - 2022
Led 2-engineer frontend revamp in 2 months. Introduced Cypress + Cucumber for E2E testing. Built internal React design system using Storybook. Integrated EVM smart contracts using Eth.js.
Software Engineer (Frontend Lead)
KoderLabs 2020 - 2021
Spearheaded diverse projects, including a car dealership platform, a freight management system, and a community app for parents, harnessing the power of React.Js and ant design. Integrated Sip.Js for advanced calling features and established real-time data binding through socket.io. Collaborated actively with development teams to review code, ensuring optimal code quality through systematic pull request evaluations. Coordinated closely with Business Analysts to meticulously plan sprints in line with evolving requirements.
Skills
aws
backend
ethereum
front-end
node
postgres
react
rust
full-stack
english