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I combine technical and managerial skills to organize people and deliver demanding software projects. I enjoy spotting new ideas, solving problems, and guiding startups as a co-founder, lead developer, and CTO. Even with a managerial focus, I still spend a substantial portion of my time coding and learning new programming languages and best practices. Over the years I’ve built and led engineering, DevOps, and data science teams across banking, SaaS, AI, hospitality, and telecom projects. I’ve architected scalable microservices, migrated workloads to the cloud, and implemented CI/CD pipelines, data pipelines, and ML workflows, always balancing people, process, and technology to ship reliable products.…I combine technical and managerial skills to organize people and deliver demanding software projects. I enjoy spotting new ideas, solving problems, and guiding startups as a co-founder, lead developer, and CTO. Even with a managerial focus, I still spend a substantial portion of my time coding and learning new programming languages and best practices. Over the years I’ve built and led engineering, DevOps, and data science teams across banking, SaaS, AI, hospitality, and telecom projects. I’ve architected scalable microservices, migrated workloads to the cloud, and implemented CI/CD pipelines, data pipelines, and ML workflows, always balancing people, process, and technology to ship reliable products.

Antonis Polychroniou

Full Stack Developer, Web Developer, Back-End Developer, +2

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I combine technical and managerial skills to organize people and deliver demanding software projects. I enjoy spotting new ideas, solving problems, and guiding startups as a co-founder, lead developer, and CTO. Even with a managerial focus, I still spend a substantial portion of my time coding and learning new programming languages and best practices. Over the years I’ve built and led engineering, DevOps, and data science teams across banking, SaaS, AI, hospitality, and telecom projects. I’ve architected scalable microservices, migrated workloads to the cloud, and implemented CI/CD pipelines, data pipelines, and ML workflows, always balancing people, process, and technology to ship reliable products.…I combine technical and managerial skills to organize people and deliver demanding software projects. I enjoy spotting new ideas, solving problems, and guiding startups as a co-founder, lead developer, and CTO. Even with a managerial focus, I still spend a substantial portion of my time coding and learning new programming languages and best practices. Over the years I’ve built and led engineering, DevOps, and data science teams across banking, SaaS, AI, hospitality, and telecom projects. I’ve architected scalable microservices, migrated workloads to the cloud, and implemented CI/CD pipelines, data pipelines, and ML workflows, always balancing people, process, and technology to ship reliable products.

Available to hire

I combine technical and managerial skills to organize people and deliver demanding software projects. I enjoy spotting new ideas, solving problems, and guiding startups as a co-founder, lead developer, and CTO. Even with a managerial focus, I still spend a substantial portion of my time coding and learning new programming languages and best practices.

Over the years I’ve built and led engineering, DevOps, and data science teams across banking, SaaS, AI, hospitality, and telecom projects. I’ve architected scalable microservices, migrated workloads to the cloud, and implemented CI/CD pipelines, data pipelines, and ML workflows, always balancing people, process, and technology to ship reliable products.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Greek, Modern

Fluent

English

Advanced

Work Experience

Full stack developer at ING

January 1, 2023 - Present

Frontend and backend development of an internal banking software.

CTO & lead developer at Palo Services

January 1, 2022 - December 31, 2023

Managing in-house, freelance engineers, Data Scientists and DevOps/Systems Administrators; Rewrite Palo Pro SaaS Product offer (Angular & NodeJS); Implement CI/CD pipelines integrated with Jira; Implement Machine learning pipelines using Kedro and Airflow; Implement/migrate BI ETL processes using Airflow; Migrate services to the cloud (AWS).

Head of Engineering at Cognitiv+

January 1, 2020 - December 31, 2022

Re-building the Engineering, DevOps and Data Science team; Outsource less critical engineering tasks and vendor management; Manage engineers and data scientists to deliver production-ready AI technology; Redesign architecture into domain-specific microservices; Introduce Kanban; Collaborate with product owner on technical specifications.

CTO at m-hospitality

January 1, 2018 - December 31, 2020

Productize software projects for scalability; manage a diverse engineering team; introduce Agile (Scrum), Docker, release management; move toward microservices on Google App Engine; adopt Google Cloud Platform services (GAE, VM, RabbitMQ, Airflow, BigQuery); integrate with PMS providers; productize e-key solution with Raspberry Pi; unify mobile platforms with Ionic 4 & Angular for PWA releases.

Self employed, Senior Developer/Consultant, Co-Founder at Drizz AI / Ambiente Servizi / Upstream S.A

January 1, 2014 - December 31, 2018

Co-founder and lead developer of Drizz AI bot; Toptal freelance developer; Backend & API development for Ambiente Servizi; Drupal 8 development practices; Drupal 8 websites/modules for Upstream S.A; SMS chat app development for Upstream.

Co-Founder, Front end developer at Frond end developer / Lookaround / Enjoyachting (various projects)

January 1, 2011 - December 31, 2014

Front-end development (TRIDION CMS) for AIG online store; Lookaround mobile marketing service with location-based offers; Enjoyachting platform for yacht bookings; lead frontend efforts for multiple client projects.

Product Analyst at Cosmote – Marketing Division & VAS Wholesales & Reporting Section

January 1, 2009 - December 31, 2011

Developing and monitoring VAS product performance metrics and KPIs; supporting product managers with reporting; creating business specifications for new requirements.

i-mode Services Implementation Expert / TPM at Cosmote - Core Network & Services

January 1, 2006 - December 31, 2008

Technical Project Manager for next-generation i-mode services; vendor evaluation; technical specs; task planning and progress tracking; service launches across regional teams; training CPTS members.

Hospitality E-Learning Programme (HELP) at WW&S

January 1, 2003 - December 31, 2004

Designed and developed a computer-based training internet application for a hospitality program (ASP & MS SQL).

Internet Services Implementation Expert at Cosmote

January 1, 2003 - December 31, 2005

CPTS team member supporting i-mode services; content guidelines; interfaces with CPs; service launches and testing; technical evaluations of vendor solutions.

Research Fellow at National Technical University of Athens

January 1, 1999 - December 31, 2003

Head of the design and development team for techno-economical evaluation software in the energy sector; support to Euro-Mediterranean energy groups; web data exchange tools; MIS development for Attiki Gas; ERP/DB projects; teaching and training.

Education

M.Sc. at University of Patras

January 1, 1999 - January 1, 1999

Qualifications

MIT Enterprise Forum startup competition

January 11, 2030 - January 20, 2026

Industry Experience

Software & Internet, Financial Services, Healthcare, Education, Professional Services, Media & Entertainment, Telecommunications, Travel & Hospitality, Other