Ihar Ivaniuk — independent software engineering consultant

What I do

I take end-to-end ownership of software work: finding the real constraint, deciding what should exist, proving the risky assumptions on a vertical slice, then building for production. That includes product engineering in React and Next.js, services and APIs in Node.js, staged CMS and commerce migrations, and AI integrations that are not allowed to be a demo.

I also provide technical consulting and mentoring when a team needs leverage — architecture reviews, sequence, and pairing — rather than another full-time hire.

How long, and doing what

I have been delivering client software independently since 2017. That is nine-plus years of professional product work, not nine years of tutorials. The work has included SaaS, FinTech, EdTech, content platforms, and AI-backed GTM and retrieval products.

In 2023 I co-founded Exosoft in Gdańsk and ran client work, operations, and direction. In 2024–2026 I worked as a senior engineer at EPAM Systems on an enterprise LLM benchmarking platform and on live migrations onto headless Next.js stacks, then continued as an independent consultant.

How I decide

Start with the constraint. Decide what should exist. Prove it. Then build for production. Deterministic logic stays the default. Models enter where the task is ambiguous enough to earn their cost, with contracts, observability, and a human fallback.

Selected milestones

1. 2017 — Independent full-stack: Client products delivered end-to-end — architecture, interfaces, APIs, and direct communication.
2. 2023 — Co-founded Exosoft: Ran a software company from Gdańsk: clients, operations, and strategic direction.
3. 2024 — AI-native platforms: Genie (GTM copilots) and TIVA (voice and text retrieval) — models inside existing work, not beside it.
4. 2025 — EPAM, senior track: LLM benchmarking, then enterprise migrations onto headless Next.js stacks — without switching the system off.
5. Now — Select projects: Architecture, AI integration, and shipping when the path is still a set of competing guesses.

Evidence

Work · Expertise

• Dzmitry Varabei — Senior Program Manager at EPAM Systems / Community leader at The Rolling Scopes

  I'd like to extend my appreciation to Ihar Ivaniuk for his outstanding work as a volunteer mentor in the RS community. Ihar has mentored students across three JavaScript/Front-end courses in 2020, 2021, and 2022-23. All of his students have successfully completed the courses and received certificates! Thank you, Ihar, for your valuable contribution to the RS community and for your commitment to your students' success.

• Masnad Nehith — Engineering Leader | Driving Multi-Team Execution, Architecture & Delivery

  Ihar Ivaniuk worked on the New Nordic School projects with our team and I can confidently say that he is a highly skilled and talented programmer. Ihar consistently demonstrated his deep understanding of software engineering concepts and his ability to effectively apply his knowledge to solve complex technical problems. His attention to detail and exceptional problem-solving skills made him a valuable asset to our team. Ihar was always willing to go the extra mile to ensure the success of the project. In addition to his technical skills, Ihar is a fantastic team player with excellent communication and interpersonal skills. He is a true professional and a pleasure to work with.

• Dmitry Beloichuk — Solutions Architect | Full Stack/Cloud/Platform Engineer

  Ihar Ivaniuk is probably one of the very best professionals to work with I have ever met in my entire life. He understands complicated matters even when outside of his direct area of expertise. For Ihar Ivaniuk the job is always the most important thing to do. On account of his mature approach to his responsibilities, I often thought of Ihar Ivaniuk as a professional that would not only get the job done, but also almost always far better than others. He possesses a winning combination of solid tech skills and business sense, I learned a great deal from him. I've always felt Ihar Ivaniuk was one of the most effective team mates I've ever had the privilege of working with.

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Education and credentials

LinkedIn · GitHub