I’m an experienced software architect and CTO, equally comfortable building new organisations and products from scratch or enhancing existing ones. I approach challenges with curiosity, resilience, and a practical, fast-paced mindset
Over the years I have served in roles such as: CTO, Director of Engineering, Architect, Full-Stack Developer, Scrum Master, Product Owner, and Project Manager. I have led teams of up to 30 engineers and delivered outcomes with clarity and shared purpose. I am proud to be both a strategic thinker and a hands-on builder. I enjoy crafting technology visions, growing high-performance teams, developing software, and making things happen.
I have navigated the energy of startups and the rigour of Fortune 500 companies, delivering solutions across diverse domains while staying tech-curious along the way. Even today, I continue to contribute at both levels, hands-on programming and strategic decision-making. Recent highlights include building an open-source conversational chatbot using generative AI that helps young people explore their skills and prepare to enter the labour market.
After more than 20 years in full-time roles, I became a consultant, selecting fast-moving and high-impact projects that require both strategic vision and precise execution. I remain grounded, pragmatic, and results-focused.
I have also founded three ventures (2002, 2011, 2023). My latest, Tabiya, is a non-profit building open-source digital infrastructure such as AI workflows, inclusive taxonomies, and open-tools. It helps governments and NGOs recognise both formal and informal skills, opening up more equitable labour markets.
My professional approach reflects the values of the Agile and Software Craftsmanship manifestos, enriched by Lean and TQM philosophies. I continue to draw inspiration from W. Edwards Deming, Peter Drucker, Robert C. Martin, and Martin Fowler. Their ideas shape my commitment to quality, clarity, and continuous improvement.
When I am not deep in tech, I enjoy reading HBR, Wired, Medium, HackerNoon, Food for Agile Thought, and The Exponential View, or watching YouTube discussions on AI and innovation such as Discover AI, Wes Roth, and Curt Jaimungal. In my free time, you will find me outdoors, staying active through sports and enjoying life with my dog.
CV
Freelancing since 2021
Permanent Roles
2020 – 2021 CTO/VP Engineering
2018 – 2020 Managing Delivery Architect
2015 – 2017 Technology Manager
2013 – 2015 Project Manager
2008 – 2013 Head of Development
2002 – 2008 CTO/Co-Founder
1997 – 2002 Software Developer
Formal Education
2007 – 2009 M.Sc. in Business Administration & Engineering (Master’s thesis in Business Process Management, Data Mining & Simulation)
1991 – 1999 Diploma in Electrical Engineering (5-year program, equivalent to an M.Sc.; Master’s thesis in Machine Learning and Computer Vision)
Informal Education
2023 Certification: Professional Scrum Master II (PSM II)
2017 Course: MIT’s Approach to Design Thinking
2017 Training: Leadership Training
2016 Training: Leadership Training
2014 Certification: Professional Scrum Master (PSM I)
2013 Seminar: Leading without disciplinary function
2013 Seminar: Basic Training in inubit BPM-Suite
2011 Training: Introduction to Product Management
Publications
“Business Process Management: A Data Cube To Analyze Business Process Simulation Data For Decision Making”
by Apostolos Benisis, 6 January 2010
ISBN-13 : 978-3639222166
Distinctions
Award for outstanding academic achievement – The Association of German Engineers (VDI), 2010
Methods & Practices
Here are the methodologies and practices in which I am proficient, applied deeply in some areas and in more focused, specialised ways in others:
- LLM-based applications, Agentic Workflows, RAG, embeddings, classification, re-ranking, vector databases, prompt engineering, optimisation, and evaluation of LLM workflows
- Database design and modelling (relational and NoSQL)
- API design and development (RESTful, GraphQL, MCP – Model Context Protocol)
- Scalable, distributed, modular, production-grade systems architecture with security and data protection compliance
- Continuous Delivery/Deployment (CI/CD) and DevOps practices
- Test design strategies: Test-Driven Development (TDD), Behaviour-Driven Development (BDD)
- Agile methodologies (Scrum, Kanban), scaled frameworks (SAFe, LeSS), remote and distributed teams
Here are the technology stacks I’ve worked with as an individual contributor in recent real‑world projects, some extensively and others in focused, targeted assignments:
- LLM/NLP: Google Gemini, LangChain, Vector Search
- Programming Languages: JavaScript/TypeScript, Java, Python
- Frontend: React, Angular, jQuery, Flutter
- Backend: FastAPI, Flask, Spring Boot, Express
- Database: MongoDB/Mongoose, MySQL, Redis, PostgreSQL, Oracle DB, H2, Flyway, Liquibase
- Testing: Pytest, Jest, Jasmine, Karma, Mocha, JUnit, Cypress, Protractor, Selenium, Pact.io, Cucumber, Artillery
- Continuous Integration/Continuous Deployment (CI/CD): GitHub Actions, Jenkins, Bitbucket, GitLab, CircleCI
- Cloud Providers: AWS, GCP, Scalingo, Cloud Foundry
- IaC: Pulumi, Terraform, Ansible, Bash
- Infrastructure: Kubernetes, Docker, Nginx, VirtualBox, Linux
- DevOps Infrastructure: SonarCloud, Nexus, Artifactory, npm, New Relic, Sentry, Grafana, Kibana, Prometheus
Additionally, besides my personal hands-on experience, I have worked with teams that build products and projects in various stacks, including:
- Platform Stacks: Electron, React Native, Flutter, Cocoa, Android SDK, .NET, Apache Cordova
- Machine Learning and Data Engineering Stacks: TensorFlow, PyTorch, Keras, Scikit-learn, Pandas, Athena, Airflow, Apache Kafka
- Cloud Providers: AWS, GCP, Azure, Heroku
- Languages: JVM (Java, Kotlin, Scala, Groovy), JavaScript/TypeScript, Objective-C, C++, Go, Python, PHP