Marcin Mantke
Tech Lead / Senior Ruby on Rails Engineer
- marcin@errise.com
- marcin-mantke
- Wrocław, Poland
Education
MSc in Computer Science
Wrocław University of Technology
2016 - 2017
BSc in Computer Science
Wrocław University of Technology
2012 - 2016
Languages
- Polish (Native)
- English (Advanced - C1)
Expertise
About Me
Experienced Tech Lead and Senior Software Engineer with a track record of leading successful projects and teams. Focused on serving the business needs using the technology. Skilled in web development, technical leadership and software architecture.
Work Experience
Responsibilities:
- assembling and later leading a group of 9 engineers in a team of 15 people
- taking part in a discovery phase of projects - collecting the requirements, translating them into technical terms, proposing architecture and providing estimations
- conducting interviews with candidates for engineering positions
- managing the right balance between the business needs and the technical excellence
- developing new features according to the business requirements
- maintaining existing applications - bug fixes, small improvements
Responsibilities:
- leading a team of 3 software engineers
- creating long-term technical plans of app development
- taking care of production servers (configuration, app deployment, system upgrades etc)
- unit/integration/application tests using RSpec, webmock, rubocop, bundler-audit, brakeman
- maintaining 5 applications and multiple internal gems
- integrating 3 different payment providers with a PCI compliant service
- upgrading every key component of a system, e.g. Ruby, Rails, MongoDB, Redis, Ubuntu version
Responsibilities:
- building from scratch and maintaining monolythical applications and microservices
- dockerizing applications and doing internal docker workshops
- unit/integrations/performance tests in accordance with established standards
- taking care of company's CI/CD stack and staging environment
- planning architecture of applications
- providing help/being a mentor for other programmers
- integrating several API providers, e.g. payment providers (stripe), facebook, twitter
- working with high volume traffic on MQTT
Skills & Technologies
Engineering
- Ruby on Rails
- Ruby
- Docker
- SQL
- git
- DevOps
- PostgreSQL
- MongoDB
- Application Architecture
- C4 modelling
Management
- Tech Leadership
- Agile Methodologies
- Project Management