Consultant

• Nov 2016 - Present

Tech advisor (part-time) in Polish Government agency responsible for creating central healthcare software systems. Domain: healthcare Main technology stack: Java, Spring, Angular Main responsibilities: - introducing, consulting and improving software development management processes - introducing devops / software craftsmanship culture - training developers and devops engineers - performing code and architecture reviews - consulting crucial system / architecture decisions (in places where I have expertise of) - validating software solutions developed / proposed by external vendors - preparing proof of concepts of crucial system components - supporting teams in working with some legacy projects having performance issues - IAM architect / developer (Keycloak based system for polish doctors and other healthcare specialists) Show less

Chief Technology Officer

• Nov 2016 - Jan 2023

Leading software development in mid-size startup company (50+ employees). Domain: healthcare, telco Main technology stack: Java, Spring, Angular, Postgres, RabbitMQ, Kubernetes, GCP Main responsibilities: - leading small team of software / devops engineers (up to 8 team members) - performing code reviews, architecture reviews - designing core architecture, coding core software components - working with product, support and integration teams to provide the best product experience for end-users - maintain cloud infrastructure (IaaS), main system handling ~500 clients / tenants, ~5000 users, ~2500 phones, up to 2000tps (realtime voip events processing) - preparing software and infrastructure for massive scaling out and future global expansion (multiple global regons) Show less

Full Stack Developer

• Jan 2016 - Jul 2017

Domain: Airport infrastructure / aviation Main technology stack: Java, Spring, Angular, Kotlin, PostgreSQL Main responsibilities: Software development for managing airport infrastructure. Domain: Airport infrastructure / aviation Main technology stack: Java, Spring, Angular, Kotlin, PostgreSQL Main responsibilities: Software development for managing airport infrastructure.

Founder

• Dec 2012 - Oct 2015

Building and leading development team. Providing technology for start-up companies using agile methodoogies and effective technology stack (JVM-related). Complete development of following projects: - Funtiago (Gamification Platform) - funtiago.com - Fobeli (healthy lifestyle app/platform) - fobeli.com - Share2sell (social media affiliatoin platform) - share2sell.pl Building and leading development team. Providing technology for start-up companies using agile methodoogies and effective technology stack (JVM-related). Complete development of following projects: - Funtiago (Gamification Platform) - funtiago.com - Fobeli (healthy lifestyle app/platform) - fobeli.com - Share2sell (social media affiliatoin platform) - share2sell.pl

CTO

• Mar 2013 - Sep 2015

Co-creator of Funtiago Gamification Platform - Early product development (in cooperation with product owner and stakeholders), design platform architecture, lead development in early project stage (1st year) - Build and manage on-site development team, cooperate with stakeholders and product developers, coordinate works with external technical partners (developers, UX specialists and graphic designers, administrators and many other smart guys). - Analysis and managing integrations with strategic clients (PZU, Link4) Show less

CTO

• May 2013 - Feb 2015

Provide technology for healthy lifestyle application/platform (design architecture, manage development team, coordinate works with external development team (mobile) ) Provide technology for healthy lifestyle application/platform (design architecture, manage development team, coordinate works with external development team (mobile) )

Software Engineer / Development Team Lead

• Mar 2011 - Nov 2012

Develop software and leading team of 10 developers for US based startup. Domain: Career development Develop software and leading team of 10 developers for US based startup. Domain: Career development

Software Engineer

• Nov 2009 - Feb 2011

Develop and maintain main internal system for booking hotels and flights. Develop new module for booking cruises. Domain: Travel / booking agent Develop and maintain main internal system for booking hotels and flights. Develop new module for booking cruises. Domain: Travel / booking agent

Owner

• Dec 2007 - Oct 2009

Provide few web projects (e-commerce / CRM) Provide few web projects (e-commerce / CRM)

Software Engineer

• Nov 2005 - Dec 2007

Tester

• Oct 2004 - Oct 2005

Testing localised versions of Microsoft products Testing localised versions of Microsoft products