Summary Download as PDF
Senior software engineer and entrepreneur with 15+ years of professional experience, coding since age 13. I build backends that do many things at once: queues, background workers, retries and concurrency. I have written Rust since 2021. Founded Bulldesk (acquired 2021), a marketing automation and CRM platform that ran 500M+ background jobs a month. Currently building Solana DeFi at Lulo, and AI agent tooling around Claude Code, Codex and OpenCode. BBA in Finance.
[email protected] | github.com/gabrielkoerich | linkedin.com/in/gabrielkoerich
Core Competencies
Distributed Systems & Concurrency: Event-driven architecture, queue-driven backends, background workers, retries, idempotency, async Rust with Tokio (worker pools, backpressure), 500M+ background jobs a month at Bulldesk
AI & Agent Orchestration: Claude Code, Codex, OpenCode in daily production use. Multi-agent orchestration (orch), automating engineering workflows, prompt engineering. Available for consulting.
Blockchain: Solana (Rust, Anchor), EVM (Solidity, Foundry, Hardhat), DeFi integrations, onchain and off-chain indexing, testing (unit, fuzz, integration)
Languages: Rust, TypeScript, Python
Data & Infrastructure: PostgreSQL, MySQL, Redis, Beanstalkd, SQS, Docker, GitHub Actions, Terraform, AWS, GCP
Frontend: Vue.js, React, Vite
Professional Experience
Senior Software Engineer, Lulo (Nov 2022 – Present)
Smart contract development for the DeFi protocol. Designed two pools: a security pool that protects users against protocol hacks while earning yield, and a higher-yield pool with standard DeFi risk.
- Architected the protocol and its CPI integrations with major Solana protocols
- Built SDKs, CLIs and test suites (Rust unit and Anchor integration)
- Developed EVM protocol integrations using Solidity and Forge
Stack: Rust, Solana, Anchor, TypeScript, GitHub Actions, GCP
Solana Smart Contract Engineer, Freelance (Oct 2021 – Nov 2022)
Built three Solana projects: an NFT marketplace with custom auctions, a price prediction game with an onchain oracle, and DeFi contracts using Orca Whirlpools. Each shipped with tests and TypeScript and Rust SDKs.
Stack: Rust, Solana, Anchor, TypeScript
Senior Software Engineer, Covie (May 2021 – Oct 2021)
Built scrapers and browser automation that collected policy and claims data from insurance company portals at high volume.
Stack: Symfony, Node, PostgreSQL
Founder, Bulldesk (Sep 2015 – May 2021)
Founded and scaled the first Brazilian platform to combine marketing automation and CRM. Built core architecture, led a team of 4 developers, managed infrastructure, and ran product development and company finances. Acquired in 2021.
- Scale: 80M+ monthly user requests, 500M+ monthly background jobs
- Event-driven, queue-driven backend: automation engine, campaigns and email on background workers
- Load-balanced app servers, dedicated worker servers, MySQL replication, Beanstalkd, Redis and SQS queues
- Automation engine processing 1M+ leads through multi-step campaigns
Stack: Laravel, Node, MySQL, Beanstalkd, Redis, SQS, Vue.js, AWS
Education
- BBA Finance: Universidade do Sul de Santa Catarina
- English Language Studies: LSI, London
Languages: Portuguese (native), English (fluent)