Devoxx Belgium 2025 · Antwerp
Alex Bunardzic
AI & Refactoring Strategist
Test‑Driven Navigation for legacy systems, powered by AI.
Vancouver, Canada · Working globally
Previously collaborated with
Engagements that move the needle
Packages are outcome‑oriented and designed to pay for themselves through reduced cycle time, lower defect rates, and faster delivery.
Navigation Audit
2–3 week codebase & delivery assessment. Pinpoint risks, create a refactoring compass, and define 90‑day outcomes.
AI‑Augmented TDD Accelerator
Hands‑on enablement for your team: AI‑assisted unit tests, mutation testing, safe refactors, and guardrail patterns.
Legacy Rescue Sprints
Time‑boxed refactoring sprints to unlock features, reduce defects, and shorten cycle time without big‑bang rewrites.
Fractional Head of Engineering
Leadership for scale‑ups: roadmaps, SDLC modernization, CI/CD, XP practices, and coaching for durable delivery.
The Future of Refactoring: Test‑Driven Navigation
Fresh from Devoxx Belgium, this talk shows how AI can pair with tests to steer refactors safely through legacy code. Ask about an in‑house version tailored to your stack.
Workshop outcomes
- Refactor confidently with executable tests as a compass
- Adopt mutation testing to harden your safety net
- Use AI to generate, explain & evolve tests
- Shorten cycle time and defect escape rate
About
Alex Bunardzic is an engineering leader and practitioner with 20+ years of experience across fintech, healthcare, and enterprise platforms. He has led large engineering groups, modernized SDLCs with XP/TDD, and delivered at scale with Ruby on Rails, Node.js, and .NET ecosystems. He organized the first International TDD Conference and writes about software craftsmanship and pragmatic simplicity.
Testimonials
![]() Engineering Manager@Avature | CS Teacher@UBA | Book Author@O'Reilly | MaximilianoContieri.com Alex has demonstrated a deep knowledge of software engineering principles and the best practices ins software development. His presentations capture audiences with clear, insightful, and engaging content. He has a remarkable ability to break down complex concepts into understandable terms, making him an excellent mentor and speaker. Alex's expertise in Test-Driven Development (TDD) is unparalleled, consistently delivering robust and reliable code. Alex's humanist approach ensures that he not only excels technically but also pushes for collaborative and team work environment. His dedication to both the craft and the people he works with makes him an invaluable asset to any team. |
![]() Moka IT Engineering I am in contact with Alex for a while about pushing the boundaries of the software industry, and I have to admit that I have never met with such a skilled and professional software engineer as Alex! The level of the drive he represents about best software engineering practices is unprecedented! He puts great emphasis on producing quality software and on doing the best to make the customer happy. He has strong and solid background in agile methodologies such as Extreme Programming and Test Driven Development, and in building software in the best possible and agile way. I am convinced that Alex will provide significant value to the company he will work for and I sincerely hope to get the chance to be involved in projects together with Alex in the future. |
![]() Chief Product Officer @ CoinPayments | Lean Six Sigma Green Belt Alex has an indispensable trait of confirming hypotheses before developing solutions to business problems. It has saved everyone a lot of wasted efforts when the first impulse is to treat symptoms of a problem instead of getting to the root cause. Under his careful guidance, work was noticeably more effective. |
![]() Shopify | (prev) Tech founder Propel | Next Canada alumni | UBC Engineer Alex is an accomplished software architect, with a penchant for breaking large problems into simple solutions. He is kind, funny, honest, and a great teacher of foundational software engineering skills. I recall from working beside his desk, that the projects he led (TDD style, with full test suites) were of similar complexity and size to others at our Staples dev shop, but were managed flawlessly by his experienced hand and with much smaller teams. If you're in need of an effective software architect who loves to get in the weeds and help those around him, then Alex should be at the top of your list. |
![]() Integration Architect Knowing Alex for number of years and enjoying and benefiting from discussions on various theoretical and practical problems, did not prevent me to be amazed during our work together with his technical and theoretical expertise in all related fields in our work. Moreover, Alex has another wonderful ability of presenting and transferring knowledge to others, making our collaboration in the team true success. |
![]() Certified Treasury Professional (CTP). DeFi, Web3, Blockchain When I worked with Alex on the same team, Alex led the effort on improving the team's development methodologies and did an amazing job. Alex introduced TDD to the team and set up structures to how the young team performed software engineering tasks. Alex's effort resulted in significant improvement in delivery time and quality, literally eliminated bugs in our product while meeting all requirements and deadlines. I would highly recommend Alex to any software team that is looking to optimize its practice. |
Free Field Guide: AI‑Augmented Refactoring
A concise, 10‑page PDF covering test‑driven navigation, mutation testing, and AI pairing patterns. Perfect for engineering leaders who need results in 90 days.