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  • Bucharest, Romania

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angellllk/README.md

Hi, I'm Angel 👋

Secure Go backend engineer. I build PoCs and MVPs where the backend and security have to be right from the start.

I like owning a problem end to end: prototyping an idea, hardening it, and shipping it. My background is production Go and applied cryptography: I built Go bindings for the Hyperledger stack that went into production for issuing and verifying verifiable credentials. I hold an MSc in Computer Science (Cybersecurity & Applied Logic) and am working long-term toward a software architect role.

Go Python Bash Docker Kubernetes OpenStack Linux GitLab CI GitHub Actions

What I do

  • Secure Go backends: REST APIs and services in Go (GoFiber, GORM/sqlx), concurrency-heavy workloads (goroutines, channels, worker pools), built with SOLID and clean-architecture principles and real test coverage.
  • Digital identity & cryptography: production Go/CGo bindings over the Hyperledger Indy / Aries / AnonCreds stack: credential issuance, proof verification, and wallet management (PostgreSQL and in-memory).
  • Prototype → harden → ship: taking an idea to a working, defensible state: rate limiting and firewall hardening under real attack traffic, CI/CD (GitLab, GitHub Actions), and containerized delivery (Docker, Kubernetes).
  • Security-first: an MSc in Cybersecurity & Applied Logic that shapes how I design, review, and harden systems.

Most of my professional work isn't public. The projects and contributions below are what I can share openly.

Selected work

  • IndySDK Go Bindings: Go/CGo wrapper over the Hyperledger Indy stack for credential issuance, proof verification, and wallet management (PostgreSQL + in-memory). Reached production as part of self-sovereign identity work. Stack: Go, CGo, GORM.
  • Askar (Go): a Go wrapper for the Askar library (developed internally).
  • go-vulcano: a security tool in Go for port scanning, DNS resolution, and web vulnerability scanning, designed around a worker pool for bounded, configurable concurrency. Stack: Go, GoFiber, GORM, goquery.
  • ucp-backend: control-panel backend serving an online community, hardened against real DDoS traffic with rate limiting and firewall rules, delivered to a VPS via CI/CD. Stack: Go, GoFiber, GORM, GitHub Actions, Linux.

Let's connect

📍 Bucharest, Romania - open to secure backend, digital-identity, and technical PoC/MVP work.

Email

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  1. go-vulcano go-vulcano Public

    go-vulcano intends to be a security tool designed to perform various tasks, including port scanning, DNS resolving and web vulnerability scanning.

    Go

  2. IndySdkGoBindings IndySdkGoBindings Public

    Forked from joyride9999/IndySdkGoBindings

    indysdk bindings

    Go