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Portrait of Dionysis Balaskas
Available for new projects

Full-Stack Software Engineer

Dionysis Balaskas

I build production systems across cybersecurity, fintech, and SaaS — end to end.

6+
Years building for the web
10+
Businesses running my software
5
Product teams shipped with

01 / About

About

Full-stack engineer with 6+ years building production systems across cybersecurity, fintech, and SaaS. Proven track record of owning end-to-end development in fast-moving startups — from zero to funded products. Known for high-velocity delivery under pressure, with a strong focus on secure, scalable architecture and AI-powered automation. Currently seeking a Senior Engineer role in a product-driven scale-up at the intersection of AI and cybersecurity.

Location
Athens, Greece · UTC+3
Status
Available for new projects

02 / Career

Experience

Full-Stack Engineer · MindTheHack

Nov 2023 — Present

Building a B2B offensive penetration testing platform, owning the frontend end to end and contributing daily to the backend.

  • Develop and own the entire frontend from scratch for a B2B offensive penetration testing platform, using Vue 3, Nuxt, and TypeScript, with a responsive approach ensuring consistent UX across all devices.
  • Serve as a core backend engineer, contributing daily to Laravel, MySQL, and Redis services with a security-first approach, designing and maintaining RESTful APIs consumed across the platform.
  • Drive system design decisions autonomously for new features, evaluating architectural trade-offs, conducting code reviews, and enforcing consistent coding standards via Git branching and PR workflows.
  • Vue 3
  • Nuxt
  • TypeScript
  • Laravel
  • MySQL
  • Redis

Full-Stack Engineer · SPIN Analytics

Jan 2021 — Oct 2022

Built the RISKROBOT credit-risk product full-stack and turned academic research into production ML features.

  • Developed the RISKROBOT product full-stack using Vue.js, Django, and PostgreSQL.
  • Implemented multiple ML models extracted from research papers using scikit-learn, pandas, and numpy, integrating them into the core product to enhance risk analysis capabilities.
  • Represented the company internationally at investment competitions and summits.
  • Vue
  • Django
  • PostgreSQL
  • scikit-learn
  • pandas

Co-Founder & Head Engineer · Caroo

Sep 2020 — Mar 2022

Co-founded a car-sharing startup and led its technical execution from zero to first customers and funding.

  • Built the full-stack platform and mobile application for a car-sharing startup from the ground up.
  • Led technical execution that enabled the company to acquire its first customers and secure early-stage funding.
  • Vue
  • JavaScript
  • Node.js

Full-Stack Engineer · Freelancer

Sep 2020 — Sep 2022

Part-time

Designed, built, and sold an online transaction monitoring system for employee oversight and revenue tracking.

  • Designed and developed an online transaction monitoring system for employee oversight and revenue management.
  • Successfully sold the product to 10+ businesses.
  • Vue
  • Laravel
  • MySQL

Front-End Engineer · Sofar Digital Agency

Jul 2019 — Sep 2020

2 summer seasons

Front-end development of ERP software for bus fleet management and monitoring.

  • Front-end development of ERP software for bus fleet management and monitoring.
  • Contributed to a rule-based automated bus routing system and developed a driver communication mobile app.
  • JavaScript
  • Vue

03 / Toolkit

Skills

Frontend

  • Vue 3
  • Nuxt
  • TypeScript
  • JavaScript

Backend

  • Laravel
  • Node.js
  • Django

AI

  • LLM Integrations
  • Agentic Ecosystems
  • MCP
  • AI Automation

Security

  • Application Security
  • Secure Coding (OWASP)
  • Offensive Security

Testing

  • TDD
  • Pest
  • Vitest
  • Playwright

Databases

  • MySQL
  • PostgreSQL
  • Redis

DevOps

  • Docker
  • GitHub Actions
  • Azure

Practices

  • REST APIs
  • System Design
  • Code Review
  • Git
  • Agile / SCRUM
  • Jira

05 / Studies

Education

BASc, Informatics & Telecommunications · University of Athens

Sep 2017 — Jul 2021

Grade9.3 / 10

Certifications

  • Claude Certified Architect — Anthropic
  • Scrum Master Certification — LearnQuest
  • Introduction to Negotiations — Yale University

Languages

  • Greek — Native
  • English — Proficient (CPE, University of Cambridge)

06 / Say hi

Let's work together

Have a project in mind, a role to fill, or just want to say hello? I'm always happy to talk.

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