About Me
I’m Marcin Komsta, Software Engineer, DevOps, SRE, Cloud Platform Engineer. Based in Warsaw, Poland. Focused on infrastructure automation, using tools like Ansible, Kubernetes, AWS. Big fan of choosing technologies best suited for the problem, not the coolest. Always open to teach others about my work and share my knowledge. In the past I used to be a Software Engineer, transitioned into infrastructure / operations roles to utilize my diverse engineering background. Generalist with infrastructure focus.
Main tools at my disposal: Python 3, TypeScript, Go, AWS, GCP, Bash, Kubernetes, AWS Lambda/Serverless, SQL/RDS/CloudSQL.
Professional Experience (11 years)
Oct 2024 - presentSenior Cloud Platform Engineer, Clari
- Drive migration of around 50 services from legacy Chef based deployment to modern Kubernetes/Istio/FluxCD based deployment
- Modernize and speed up development speed within infrastructure
- Managing infrastructure scalability
- Aid development teams with infrastructure decisions
- Collaborate on implementing the infrastructure changes
- Create tooling needed to support on-going maintenance within the GitOps repositories
- Be part of On-call rota
- Automation in Go, TypeScript, Python
- Stack: AWS, Java, Kubernetes EKS, Chef, FluxCD, GitOps, Github/Github Actions
Senior DevOps Engineer, Point72
- Helping with major migration from BitBucket to Github Enterprise
- Creating onborading documentation for potential customers of Github
- Automation of migration process through TypeScript tooling and Github Hooks/Events
- Improving documentaiton all around to provide with better clarity and understanding of offered solutions inside organization
Senior Platform Engineer, Stackerhq.com
- Create environments as a service using ArgoCD and git
- Advocate developers for best practicies around the infrastructure
- Helping build scalable platform to be used by the customers.
- Transforming whole infrastructure to a reproducible and auditable Terraform based infrastructure as a code IaaC
- Strengthening security perimeter, implementing Zero Trust architecture through Cloudflare ZT
- Automating every day tasks, providing guidance through performance issues
- Migrating to modern CI/CD solutions such as Github Actions for ease of use and self-service
- Responding to incidents and mitigating them, either by myself or with the team
- Creating in-house solution for on-demand development environments to increase productivity and make features faster to develop
- Cost optimization of infrastructure spending in cloud
- Preparing organization for ISO/SOC certification
Senior SRE, Codility
- Help with scalability of the system
- Migrating old infrastructure created with fab scripts, chef and rake tasks to new Kubernetes
- infrastructure (Helm, Istio, Kubernetes, EKS)
- Enabling developers with continuous delivery
- Part of the on-call team
- Delivering everyday tasks from different departments
- Hardening system’s security
- Observability and alerting
- Technological Stack: Python 3.7, Django 3, AWS, EKS, ChefDK 3.xx, Go, ELK (elastic.co), Grafana, Prometheus, Pingdom, PagerDuty, ArgoCD, Gitlab, Fab, PostgreSQL
Tech Leader / SWE, 300.codes, KerrisGroup
- Architecture design and execution with help of a team consisting of one backend and one frontend developer.
- Full automation of project deployment and delivery using Ansible.
- Time and cost estimation of projects
- Meeting with clients and working out best possible solution from both technical and business perspective
- Technological Stack: Python 3.7, Django 2.2, Celery, AWS (EC2, route53), Cloudflare, JMeter, Docker, Ansible, Gitlab CI
Software Developer, TogetherData
- Working on big data solutions, using tools from Hadoop stack including: HDFS, Kafka, HBase, ZooKeeper
- Optimizing for time efficiency scripts processing big amount of data
- Python 3.6, Docker, DigitalOcean, Ansible, Proxmox
Tech Leader, Megacity sp. z o. o. / iMeshup
- Architecture design of whole system
- Leading the work of all developers inside the startup (2 frontend developers, 2 backend developers)
- Working with decisive persons regarding the business choices, attending investment meetings.
- Same technology and deployment stack as in Risen.
- Internal move to a new offspring startup
Python Developer, Risendot sp. z o. o. / Risen.
- Frontend using ReactJS framework and Server-Side Rendering
- Backend using PHP - Yii2, Zend, Python 3.4 to 3.6 - Django 1.10 to 2.0, DRF 3.6, Flask
- Time and cost estimation of projects, meeting with clients and explaining the technical cases in business-friendly way.
- Recruitment of new people – both searching and screening.
- Key decisions of technological choices. Active code review of pull requests submitted by colleagues.
- Leading projects consisting of 2 to 5 python developers.
- Whole house DevOps – configuring continuous integration with bitbucket pipelines, Jenkins, docker and docker-compose for deployment, AWS set up, ansible for automation.
- Deploying services on client’s infrastructure on request and providing documentation
- Continuation of cooperation form previous company (ThemTomatoez)
Junior PHP Developer, ThemTomatoez
- RESTful API for accessing resources.
- Mobile authentication using both simple token, and OAuth2.0 flow.
- CMS systems for admin management of resources
- Yii2 and Laravel 5.1
- Facebook API and Google Maps API
Other skills
- Circuit design using KiCad
- Electronics diagnostic and repair using Microscope, DMM, Oscilloscope, soldering iron, hot air gun
- CNC/3D Printer enthusiast, programming and compiling 3D printing controllers
- Candidate screening and recruitment
- Good knowledge of SQL databases (PostgreSQL, MySQL)