Neven Marić

Neven Marić

Software development engineer

5+ years of C# and .NET in fintech and healthcare, across HIPAA and PCI compliant systems. 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

  1. Moberg

    Oct 2023 – Now

    Software Development Engineer · Full-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.

    .NET · Adyen · PCI · BNPL

  2. Singleton

    Jan 2025 – Oct 2026

    Software Development Engineer · Sole proprietorship, remote

    • Web identities for local businesses: fast, light on resources and built to get traction.
    • Built by hand in Astro, without templates.

    Astro

  3. Qualify Health

    Jan 2025 – Feb 2026

    Software Development Engineer · B2B contract, remote

    • Healthcare software that matches patients with available funding, built in a team of two or three.
    • HIPAA, SOC and PCI compliant, so PHI and payment data had to be handled right.
    • Cut infrastructure and resource costs by optimising existing applications.

    .NET · HIPAA · SOC · PCI

  4. Mono Software

    Sep 2022 – Oct 2023

    Software Development Engineer · Full-time, on-site

    • Worked on a large European sportsbook: 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.

    .NET · Microservices

Education

  1. Faculty of Informatics, University of Pula (FIPU)

    2026 – 2028(expected)

    Bachelor of Informatics (univ. bacc. inf.)

  2. University of Applied Sciences, Zagreb (TVZ)

    2023 – 2025

    Bachelor of Computer Engineering (bacc. ing. comp.)

    Not completed. Transferred to FIPU.

Certifications

  1. AWS Certified AI Business Strategist

    Nov 2026

    Amazon Web Services

    Turning AI capabilities into business outcomes, setting up responsible AI practices and scaling AI adoption.

    Verify on Credly

Competitions

Mostly cybersecurity CTFs, and one startup pitch.

  1. Hidden Investigations CTF 2026

    2026
  2. FortID 2026

    2026
  3. Hackultet 2026

    2026
  4. Hackultet 2025

    6th of 16Certificate
    2025
  5. "Izbrusi ideju" StartUp Launch

    3rd
    2021
  6. Hacknite 2.0

    2nd of 51Writeups
    2021
  7. Hacknite 1.0

    1st of 17Certificate
    2020

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)