# Theofilos Chamalis

> Senior Full Stack Developer and Team Lead based in Thessaloniki, Greece. Builds web, mobile, and AI-powered products with TypeScript, React, Next.js, Node.js, NestJS, AWS, and GCP. Currently Team Lead at Vee (AI For Good).

Open to senior full stack and team lead roles (remote or hybrid). Contact: theofxam@gmail.com | +30 698 7689966

## Profile

- [Portfolio website](https://www.cs.uoi.gr/~thchama/): Primary personal site with About, Skills, Experience, Education, Portfolio, and Contact
- [Portfolio mirror](https://portfolio.evoptt.com/): Same site via custom subdomain
- [CV PDF (2026)](https://www.cs.uoi.gr/~thchama/Theofilos_Chamalis_CV-2026.pdf): Downloadable resume
- [LinkedIn](https://www.linkedin.com/in/theofiloschamalis): Professional profile and recommendations
- [GitHub](https://github.com/Theofilos-Chamalis): Open source and selected repositories

## Experience

- [Vee - AI For Good](https://vee.com): Team Lead / Senior Full Stack Developer (Sep 2024–Present). Leads Donna AI agent; works on Maggie AI agent; GCP/GKE, ArgoCD, Terraform, Next.js, NestJS, GraphQL
- [Evolvium Solutions / EVO PTT](https://evoptt.com): Founder & CTO (Oct 2016–Present). VoIP push-to-talk SaaS; clients include TITAN Group, Jio Mobile, Department of Security (Thailand)
- [EF Education First](https://www.ef.com): Senior Full Stack Developer (Apr 2023–Sep 2024). Destination Pages for 500k+ users; Next.js, React, TypeScript, Tailwind, AWS, Terraform; ~32% faster load, 4x faster builds
- [Crowdlinker](https://www.cs.uoi.gr/~thchama/#experience): Senior Full Stack Developer (Jun 2021–Apr 2023). MLSE, Yumba, OmStars and other clients; Next.js, Node.js, AWS Serverless, React Native
- [VieConnect SAS](https://vieconnect.io/): Founding Full Stack Engineer / Team Lead (Apr 2017–Jun 2021). SECCO platform (React, React Native, AWS Lambda) across 80+ nursing homes in France

## Selected projects

- [Vee Maggie](https://vee.com): AI social media agent for nonprofits
- [Vee Grant](https://vee.com): AI grant research and writing agent
- [EF Destination Pages](https://www.ef.com): Multi-market destination pages (performance-focused rebuild)
- [EVO PTT](https://evoptt.com): Push-to-talk web panel and Android app
- [GitHub: EVO-PTT](https://github.com/Theofilos-Chamalis/EVO-PTT): Open source related repository
- [GitHub: DevConnector](https://github.com/Theofilos-Chamalis/DevConnector): MERN demo project

## Skills

- Languages: TypeScript, JavaScript, Java, SQL, Bash
- Frontend: React, Next.js, Vue.js, Tailwind CSS
- Mobile: React Native, Ionic React, Android
- Backend: Node.js, NestJS, GraphQL, REST, microservices
- Data: MongoDB, PostgreSQL, MySQL, DynamoDB, InfluxDB
- Cloud & DevOps: AWS, GCP, Docker, Kubernetes, Terraform, CI/CD, ArgoCD
- AI: OpenAI API, LangChain, LangGraph

## Education

- M.Sc. Computer Science and Engineering, University of Ioannina (2013–2015), grade 9.36/10, Software Engineering major, Data Mining thesis
- B.Sc. Mathematics, University of Ioannina (2008–2012), Computer Science and Algorithms major
- Languages: Greek (native), English (C2)

## Optional

- [Sitemap](https://www.cs.uoi.gr/~thchama/sitemap.xml): Crawl index
- [robots.txt](https://www.cs.uoi.gr/~thchama/robots.txt): Crawler rules