About Me

Senior Site Reliability Engineer based in Warsaw. I work where code meets infrastructure - diagnosing incidents, fixing the observability gaps that hide them, and shipping the boring-but-important changes that prevent the next outage. Currently helping engineering teams operate a system of 1000+ services at NatWest Boxed - mostly Java services in an asynchronous, Kafka-based architecture. 13 years in tech: started as a Java developer, found my home in the messy middle where applications meet production.

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Skills

GitHub

Programming

Go Development

TypeScript

Java

Experience

NatWest Boxed

Warsaw, Poland

Senior Site Reliability Engineer (Consultant)Feb 2025 - Present

Support almost 30 engineering teams resolving production incidents across a system of 1000+ services
Act as an enabling team in a Team Topologies setup — bridging stream-aligned squads with shared SRE practice
Improve observability - metrics, logs, traces - to shorten time-to-detect and time-to-diagnose
Build agents for incident handling and streamline the resolution process for on-call engineers
Drive reliability improvements that prevent recurring outages and reduce on-call toil

Datachain (former Iterative.ai)

Global (Remote)

Senior Platform EngineerJul 2022 - Dec 2024

Designed a multi-cloud platform for running distributed ML experiments with billions of objects (AWS and GCP)
Designed and implemented Kubernetes Pod autoscaling based on Celery queue depth
Designed the on-premise, enterprise edition of DVC Studio to run reliably in arbitrary customer environments (ESXi, Hyper-V, KVM)
Implemented new CI/CD pipeline reducing feature delivery time by 50%
Coordinated large-scale engineering efforts for SOC2 certification
Achieved 40% reduction in cloud expenses by optimizing system designs
Expanded GitOps + IaC coverage to improve disaster recovery resilience

Equinix

Warsaw, Poland

Senior DevOps EngineerAug 2020 - Apr 2022

Led migrations of 3 systems (40 microservices) to make infrastructure GDPR compliant
Designed architecture and migration process from on-premise to cloud
Delivered automation of cloud infrastructure (K8s, Istio Service Mesh, observability, CD pipelines)
Supported other teams in solving AWS, Kubernetes, and networking issues
Mentored teammates on infrastructure code quality and design

Codility

Warsaw, Poland

Senior Site Reliability EngineerJan 2020 - Jul 2020

Kept online services and infrastructure running in good health
Ensured infrastructure security against unauthorized access and interruptions
Educated engineers on modern cloud computing standards and good practices

DevOps EngineerNov 2018 - Dec 2019

Designed architecture for migration from EC2 to Kubernetes
Improved CI/CD pipelines and developer tooling

F5 Networks

Warsaw, Poland

Senior Software EngineerFeb 2018 - Oct 2018

Implemented CloudNative services in Go
Designed pipelines for unit, integration, and end-to-end tests with multi-project execution
Automated packaging into Amazon Machine Images (AMI)

TouK

Warsaw, Poland

DevOps EngineerAug 2015 - Feb 2018

ELK Stack aggregating 50 TB of data for Play Mobile - 16 nodes, 2 TB memory
Play Now - designed scalable Cloud Native delivery pipelines and third-party integrations for a new mobile operator
Virginmobile MVNO - 2 years of infrastructure maintenance and architectural improvements
Migrated parts of internal infrastructure to AWS (e.g. autoscaling GitLab runners)

Java DeveloperJan 2014 - Oct 2015