Open to opportunities

Bojan Janjatović

@bojanjanjatovi

Message

I build reliable event-driven platforms, durable workflows, and industrial integration systems.

Serbia

Message

What I'm looking for

I'm looking for work on backend, platform, and systems problems where durable workflows, event-driven reliability, integrations, observability, and clear failure handling matter in production.

I've built large-scale remote device-management platforms at NCR Voyix, supporting 100,000+ devices with Azure Durable Functions, Cosmos DB, Service Bus, IoT Hub, and resilient event processing. I focus on the operational details that matter under pressure: retries, backpressure, poison events, dead-letter routing, policy controls, and production visibility.

Through Mamut Studio and earlier industrial logistics work, I build durable workflows, compact runtimes, local operator tools, and production integrations in C#, Rust, Go, and C. I've modernized postal sorting systems from roughly 3,000 to 10,000 parcels per hour at the same error level, contributed upstream to Akka.NET and alsa-lib, and bring a repair-minded approach to debugging systems and hardware.

Experience

Work history, roles, and key accomplishments

Current

Independent Developer

Current

Mamut Studio

Sep 2025 - Present (11 months)

Built Mamut Studio as a public home for independent work, focusing on durable workflows, compact C runtimes, control planes, and local operator tools. Developed tonewheel91, a standalone C electromechanical tonewheel-organ instrument, and contributed upstream to Akka.NET and alsa-lib.

C Rust Go Akka Durable Workflows Local First Tooling

Software Engineer IV

NCR Voyix

Sep 2020 - Apr 2026 (5 years 7 months)

Architected and developed a large-scale event-driven IoT platform for remote device management across 100,000+ devices. Built durable orchestration and resilient event processing using Azure Durable Functions, Cosmos DB, Service Bus, and IoT Hub, and developed maintenance and troubleshooting flows with remote commands.

Azure Functions Azure Cosmos DB AKS Event Driven Architecture Distributed Systems C#

Senior Developer

KI SOFT 80

Apr 2019 - Jan 2024 (4 years 9 months)

Contributed to backend systems for an online gambling platform and CRM software across Azure- and AWS-backed environments. Built conversational automation with Microsoft Bot Framework, ensuring predictable and supportable workflow behavior.

C#Microsoft Bot Framework Azure AWS Backend Systems

Chief Programmer

TOP POS SERVIS DOO

Apr 2014 - Mar 2019 (4 years 11 months)

Built C# integration software connecting conveyors, X-ray systems, OCR/videocoding, Postal IT, government security IT, barcode cameras, and operator workflows. Implemented protocol-level Modbus communication and custom TCP transfer paths, and modernized a GBI sorter with SICK barcode-camera integration, increasing throughput from roughly 3,000 to 10,000 parcels per hour.

C#Modbus TCP IP SICK Barcode Cameras

Developer

ProConto Software doo

Jul 2012 - Jan 2014 (1 year 6 months)

Developed and maintained web services and business application functionality for operational users. Worked on ticketing/help-desk workflow, web application deployment/testing, server/network coordination, remote support, and hardware diagnostics.

C#Web Services Ticketing Systems Deployment Remote Support

Programmer

Freelance Web Development

Apr 2010 - Jun 2012 (2 years 2 months)

Delivered Python and C# web development for small clients, mostly simple business websites and backend functionality. Built a more substantial e-commerce website covering catalog/order flow and client-facing delivery.

Python C#Web Development

TV and Electronics Repair

Digital Servis

Jan 2003 - Jan 2010 (7 years)

Repaired TV sets and consumer electronics in a family service shop, diagnosing practical hardware and electronic faults. Built a lasting bias toward modularity, fault isolation, careful testing, and repair-oriented debugging.