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Ivan CirkovicIC
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Ivan Cirkovic

@ivancirkovic

Backend developer building Go concurrency tools, automated fuel-report spreadsheets, and low-latency APIs with Cloudflare Workers.

Serbia
Message

I built jobq, a reusable Go package for a concurrent in-memory job queue. It supports FIFO scheduling, thread-safe operations, blocking dequeue, graceful shutdown, and worker-based processing; I tested it with more than 1,000 queued jobs.

For autotable, I built a Python tool that extracts data from fuel-station PDF reports and generates structured ODS spreadsheets. It automates daily report processing that otherwise takes about 15 minutes of manual entry and calculations.

I built fast-api to explore edge computing, database performance, and low-latency search. It includes more than 10 API endpoints deployed on Cloudflare Workers, with optimized search and Redis-backed data access.

I also built an HTTP/1.1 server from scratch, implementing request parsing, response generation, routing, and middleware. I'm studying Computer Science at the University of Niš and completing Backend Developer Coursework through Boot.dev.

Experience

Work history, roles, and key accomplishments

AP
Current

Retail Sales Attendant

ART Petrol

May 2026 - Present (5 months)

Handled daily responsibilities and customer communication, working independently and as part of a team.

Education

Degrees, certifications, and relevant coursework

Boot.dev logoBO

Boot.dev

Backend Developer Coursework, Backend Development

2026 -

Enrolled in Backend Developer Coursework, ongoing since April 2026.

Faculty of Electronic Engineering, University of Niš logoFN

Faculty of Electronic Engineering, University of Niš

Bachelor's Degree, Computer Science

2024 -

Pursuing a degree in Computer Science, with coursework ongoing since October 2024.

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