Nov 2023 – Sep 2025 · 1 yr 10 mos

• Fraud & Compliance. Leading cross-team migrations away from the monolith architecture. Driving company-wide improvements and optimization initiatives.

Sep 2022 – Nov 2023 · 1 yr 2 mos

• Working on KYC-related aspects of the product. Driving migrations from the monolith to microservices, while utilizing DDD and event-driven architecture. Improving company ways of working with ruby, mentoring fellow engineers

Feb 2022 – Jul 2022 · 5 mos · Remote

Oct 2020 – Jan 2022 · 1 yr 3 mos · Remote

• Leading dockerization and migration of the whole rails apps stack to the Nomad Cluster

Nov 2019 – Sep 2020 · 10 mos · Cracow, Małopolskie, Poland

• Second-level manager over 5 cross-functional teams (~40 people in Poland and UK)
• Responsibilities:
• Leading, coaching, mentoring team leaders (line managers) of the teams
• Setting goals and direction for the teams in line with the company strategy
• Delivery of the product roadmap
• Challenging the status quo and constantly raising the bar

Jun 2017 – Sep 2019 · 2 yrs 3 mos · Cracow, Lesser Poland District, Poland

• I have started with 2 cross-functional teams and ended up with being a manager for 5 teams. I was also helping running Krakow's branch of the company.
• Responsibilities:
• Building and developing high performing teams (ending up with 5 teams, ~50 people in total)
• Setting the direction for teams in line with company tech strategy
• Driving cross-department collaboration/improvements
• Nurturing teams and individual growth (developing, retaining, preparing succession planning)
• Recruiting and staffing (making sure that the team has appropriate skills to meet business needs)
• Being a role model for core values
• Removing impediments

Mar 2016 – Mar 2017 · 1 yr · Remote

• Remote contractor.
• Working with the CTO to manage the design, build and maintenance of a new driver risk management platform
• Working with the CTO to build a strong engineering team to develop the platform
• Day-to-day responsibility for the management of the software spec, build and progress
• Implementing and enforcing a secure development policy (PCI compliance)
• Working across multiple disciplines (front-end, back-end, DevOps, interactive educational content, cross-platform, HTML5 mobile)

Mar 2015 – Mar 2016 · 1 yr · Remote

• As a remote contractor, I was a part of 15+ international, remote team (mainly other contractors) working on the startup project processing frequently some input data for generating large outputs based on customized user preferences.
• Responsibilities:
• Agile TDD and OOP with Ruby (Rails) and Javascript (Ember.js)
• Code reviews and remote pair programming
• Taking part in sprint planning & retrospective meetings, story estimation and architecture design sessions, internal R&D meetings
• Coordinate deployments with Capistrano and CircleCI
• Proactive on improving software development and inside company processes
• Investigate performance issues
• Define best practices
• Indicate areas of improvement in terms of better UX and/or business logic then raise it in the discussion with the client
• Live coding technical interviews

Oct 2014 – Mar 2015 · 5 mos · Cracow, Małopolskie, Poland

• Front End Optimization (FEO) solutions for Akamai clients

Mar 2014 – Sep 2014 · 6 mos · Remote

• Remote work as a contractor (and part of the international team) on multiple projects (mostly for the UK government). Development in agile methodologies (Scrum) in practice.
• Responsibilities:
• Taking part in multiple projects, mostly for UK government institutions
• Agile TDD & OOP in Ruby & Javascript
• Preparing cookbooks for chef and deployment scripts with Capistrano
• Identifying & fixing production performance issues

Apr 2013 – Mar 2014 · 11 mos · Cracow, Lesser Poland District, Poland

• Acqui-hired with the whole Applicake team, currently part of Zendesk.
• Full-stack developer in Service Oriented Architecture (50+ services).
• Tech: Ruby/Rails/Sinatra, RabbitMQ, Redis, Javascript
• Responsibilities:
• Ownership of services in a microservice architecture
• Writing new services (Ruby) and integrating it with many other services (various technologies) and/or third-party services
• Doing a lot of brainstorming and whiteboard sessions to properly address & fix problems

Feb 2011 – Apr 2013 · 2 yrs 2 mos · Kraków Area, Poland

• TechCrunch about Applicake: "No other business exemplifies both Poland and Central and Eastern Europe’s emergence as a tech powerhouse to me than this young company."
• Full stack web development and projects estimation/management. Working directly with clients (US, UK) using Scrum. Sprint plannings, doing retrospectives and code reviews.