$cat cv.md
Neven Marić
C# / .NET software engineer / Osijek, Croatia
Backend engineer with 5+ years of C# and .NET in fintech and healthcare. I like benchmarking to find out what actually scales, whether it's a payments backend or a small-business website. Off the clock, I play CTFs and report bugs.
Experience
Oct 2023 – Present
Moberg
.NET Software EngineerFull-time, remote
- Began on a BNPL system, then moved to a separate project: a payment facilitator that wraps Adyen for the Icelandic market.
- Worked across the whole e-commerce platform: payment links, payments, webhooks and security.
- Performance, scalability and reliability work on high-volume payment flows, backed by benchmarks and smoke tests.
- Wrote most of the e-commerce docs and helped merchants with their integrations.
- Part of the architecture of a PCI-compliant platform between thousands of Icelandic merchants and Adyen.
Jan 2025 – Oct 2026
Singleton
Freelance Software EngineerSole proprietorship, remote
- Web solutions for local businesses: fast, light on resources and built to get traction.
- Built by hand in Astro, without templates.
Jan 2025 – Feb 2026
Qualify Health
.NET Full-Stack Software EngineerB2B contract, remote
- Healthcare software that matches patients with available funding to cover their expenses, built in a team of two or three.
- HIPAA- and PCI-compliant, so PHI and payment data had to be handled right.
- Cut infrastructure and resource costs by optimising existing applications.
Sept 2022 – Oct 2023
Mono Software
.NET Backend DeveloperFull-time, on-site
- Worked on a microservice cluster built on an internal backend architecture, which I also maintained and improved.
- Performance features that took proofs of concept, benchmarks, a lot of testing and presenting the results.
Education
Oct 2026 – Summer 2028 (expected)
Faculty of Informatics, University of Pula (FIPU)
Bachelor of Informatics (univ. bacc. inf.)
Transferred from TVZ to move toward teaching: FIPU offers a master's programme with a teaching focus. The first year was credited, so two years remain.
Oct 2023 – 2026 (transferred)
University of Applied Sciences, Zagreb (TVZ)
Bachelor of Computer Engineering (bacc. ing. comp.)
Competitions
Mostly cybersecurity CTFs, and one startup pitch.
2026
FortID 2026
team: claude. members: 1
2026
Hackultet 20265th of 15
The third national CTF for university students, run by CERT.hr, CARNET and FER.
team: umjetno inteligentni. members: 5Certificate (PDF)33 writeups
2025
Hackultet 20256th of 16
The second national CTF for university students, run by CERT.hr and CARNET. Played for Tehničko veleučilište u Zagrebu.
team: out of scope. members: 5Certificate (PDF)
2021
"Izbrusi ideju" StartUp Launch3rd
National high-school competition for socially useful ideas, with the Speed Reader project (since discontinued).
2021
Hacknite 2.02nd of 51
The second national CTF for Croatian high schools, run by CARNET's CERT.hr. Played for Elektrotehnička i prometna škola Osijek.
team: ELPROS. members: 528 writeups
2020
Hacknite 1.01st of 17
The first national CTF for Croatian high schools, run by CARNET's CERT.hr. Played for Elektrotehnička i prometna škola Osijek.
team: ELPROS. members: 5Certificate (PDF)
Skills
- Languages
- C#
- TypeScript
- JavaScript
- Python (basic)
- Backend
- .NET 8/9/10
- ASP.NET Core
- Background services
- Microservices
- .NET Framework 3.5-4.8
- Data
- PostgreSQL
- SQL Server
- EF Core
- EF6 to EF Core migrations
- Payments & compliance
- Adyen
- Apple Pay
- Google Pay
- PCI DSS
- HIPAA
- Cloud & ops
- AWS
- Azure
- Vercel
- Docker Swarm (on-prem)
- GitHub Actions
- New Relic
- Sentry
- Security
- Web exploitation
- Binary exploitation
- CTFs
- AI-assisted development
- Claude Code
- Claude Design
- MCP
- Agent skills & hooks
- v0 / Bolt
- ChatGPT
- Spoken
- Croatian (native), English (fluent), German (basic)