I'm Harun Ergi, a backend-leaning, full-stack engineer with deep experience in distributed systems, high-throughput backend workflows, and developer experience tooling. I excel at taking products from vague concepts to production with a high degree of autonomy, and I’m known for strong engineering instincts, fast execution, and raising standards through tooling, documentation, and architectural improvements. I’m proficient across Ruby on Rails, React/TypeScript, PostgreSQL, and event-driven architectures, with experience spanning multi-region routing and performance optimization. I’m committed to building reliable systems and empowering teams to move quickly without sacrificing quality.

Harun Ergi

I'm Harun Ergi, a backend-leaning, full-stack engineer with deep experience in distributed systems, high-throughput backend workflows, and developer experience tooling. I excel at taking products from vague concepts to production with a high degree of autonomy, and I’m known for strong engineering instincts, fast execution, and raising standards through tooling, documentation, and architectural improvements. I’m proficient across Ruby on Rails, React/TypeScript, PostgreSQL, and event-driven architectures, with experience spanning multi-region routing and performance optimization. I’m committed to building reliable systems and empowering teams to move quickly without sacrificing quality.

Available to hire

I’m Harun Ergi, a backend-leaning, full-stack engineer with deep experience in distributed systems, high-throughput backend workflows, and developer experience tooling. I excel at taking products from vague concepts to production with a high degree of autonomy, and I’m known for strong engineering instincts, fast execution, and raising standards through tooling, documentation, and architectural improvements.

I’m proficient across Ruby on Rails, React/TypeScript, PostgreSQL, and event-driven architectures, with experience spanning multi-region routing and performance optimization. I’m committed to building reliable systems and empowering teams to move quickly without sacrificing quality.

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Language

English
Advanced

Work Experience

Software Engineer (Core Systems) at SweetHawk
October 1, 2024 - November 1, 2025
Owned and re-architected the Ticket Update Engine used by ~10k concurrent users. Reduced latency from 2–5 seconds to 100–250 milliseconds, eliminating silent update failures.
Software Engineer at Five9
August 1, 2023 - September 1, 2024
Built a multi-region MRCP router (Python/FastAPI) for STT/TTS workloads. Reduced distributed cache lock timeout from ~1 second to 50–100 milliseconds via architecture optimization. Developed backend APIs, improved observability layers, and increased system reliability. Worked across SIP routing, media-processing pipelines, and distributed backend systems. Strengthened platform reliability by expanding automated test coverage and standardizing backend testing patterns across teams.
Junior Software Developer at Deloitte
January 1, 2022 - June 30, 2022
Built navigation flows, UI components, and dashboards across finance, defence, and utilities projects using React Native and React. Delivered UI features for Vanguard's superannuation app, ADF travel dashboard prototype, and Yarra Valley Water usage visualization tool.

Education

Bachelor of Software Engineering (Honours) at Monash University
January 11, 2030 - January 1, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet