Senior Full Stack Engineer · CTO & Co-Founder of DEVLEGION
I build the whole system, and keep it running.
I'm a full-stack engineer and CTO of DEVLEGION, based in Niš. For seven years I've built production software end to end, from data models and event-driven services to the React interfaces on top. I care about systems that keep working once real users arrive.
- 7 yrs in production
- 20+ products
- 0 regressions on a live migration
Press "Send a request". Watch it travel through every layer I build.
Selected work
What people I've worked with say
I had the pleasure of working with Stefan for over two years, during which he was a dependable Node.js backend developer on one of our key client projects. He's talkative in the best way: open, funny and easy to collaborate with, which made him a great fit for both our team and the client. I'd recommend him to any team looking for a backend developer who is great to work with.
Working with Stefan has been a positive experience and he is a valued member of the team. As a Front End Developer, he has demonstrated excellent technical knowledge, his range of different .js frameworks is impressive, with great problem-solving ability, and attention to detail. He is reliable and professional with excellent soft skills and communication and can be trusted to deliver high-quality results even when working under pressure.
I co-founded DEVLEGION with Stefan in 2022, and he's the person I trust with the hardest parts of a project. He builds across the whole stack, from data models to polished interfaces, and he's just as strong beyond the code: scoping work with clients, planning delivery and keeping projects on track. Reliable, honest and genuinely fun to build with.
How I work
- 01
Discover
We talk about the problem before the tech. You get a clear estimate and a plan you can check.
- 02
Design the system
I sketch the whole system first: screens, services and data. You sign off before we build.
- 03
Build & test
Working releases you can click through every week. Automated tests guard every change.
- 04
Ship & stay
Launch through an automated pipeline. I stay on after launch to fix, tune and grow it.
Ways to work together
Project
For: An MVP, a rebuild or a migration with a clear goal.
How: Scoped plan and estimate, weekly releases you can click through.
Contract, in your team
For: Teams that need a senior full-stack engineer now, without a long hiring process.
How: Monthly rate, long-term. I work in your tools, rituals and codebase, overlapping with US and EU hours.
Full-time
For: Companies hiring a senior engineer or tech lead.
How: Remote from Niš (CET). The full CV has every project.
shipping production software
since 09.2019
products shipped
learners on a platform whose component library I co-maintain
regressions on a live legacy migration for a global booking platform
What I work with
- InterfaceWhat people click
- ReactNext.jsTypeScriptAngularVueTailwindshadcn/uiTanStack
- API & gatewayWho gets in, and how
- RESTGraphQLgRPCWebSocketsJWT / OAuthApigee
- ServicesWhere the work happens
- Node.jsNestJSExpressNx monoreposMicroservices
- Queue & eventsSlow work, in order
- BullMQRedisRxJSEvent-driven design
- DataSaved safely, found fast
- PostgreSQLMongoDBFirestoreMySQLPrismaTypeORM
- Cloud & qualityShips safely, stays up
- GCPAWSDockerCI/CDPlaywrightJestCucumber
- Leading teamsThe human layer
- ArchitectureCode review standardsHiringMentoringEstimation
Latest writing
Let's build the whole thing properly.
An MVP, a rebuild, or a system that has to survive launch day. Tell me what you're building in a 30-minute call.
Senior full-stack, remote, CET.
Available as a long-term contractor on a monthly rate, embedded in your team, or full-time. Seven years across React, Node and the cloud, plus CTO experience.