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I'm a seasoned software engineer with over 10 years of experience across the full software development lifecycle, specializing in building cloud-native platforms, distributed systems, and scalable microservices. I code in Go and Python and have a strong track record of delivering reliable, maintainable software and robust systems that scale under load. I value quality and craftsmanship, and I thrive in fast-paced environments that require rigorous problem-solving and collaboration. I'm proficient with modern tech like Kubernetes, gRPC, Kafka, and NATS, and I emphasize observability, telemetry, and monitoring (OpenTelemetry, Prometheus, Grafana) to keep systems healthy. I enjoy mentoring teams and shaping platform decisions, and I'm passionate about turning business needs into solid software architecture that stands the test of time.…I'm a seasoned software engineer with over 10 years of experience across the full software development lifecycle, specializing in building cloud-native platforms, distributed systems, and scalable microservices. I code in Go and Python and have a strong track record of delivering reliable, maintainable software and robust systems that scale under load. I value quality and craftsmanship, and I thrive in fast-paced environments that require rigorous problem-solving and collaboration. I'm proficient with modern tech like Kubernetes, gRPC, Kafka, and NATS, and I emphasize observability, telemetry, and monitoring (OpenTelemetry, Prometheus, Grafana) to keep systems healthy. I enjoy mentoring teams and shaping platform decisions, and I'm passionate about turning business needs into solid software architecture that stands the test of time.

Marcin Królik

Back-End Developer, Web Developer, Programmer, +3

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I'm a seasoned software engineer with over 10 years of experience across the full software development lifecycle, specializing in building cloud-native platforms, distributed systems, and scalable microservices. I code in Go and Python and have a strong track record of delivering reliable, maintainable software and robust systems that scale under load. I value quality and craftsmanship, and I thrive in fast-paced environments that require rigorous problem-solving and collaboration. I'm proficient with modern tech like Kubernetes, gRPC, Kafka, and NATS, and I emphasize observability, telemetry, and monitoring (OpenTelemetry, Prometheus, Grafana) to keep systems healthy. I enjoy mentoring teams and shaping platform decisions, and I'm passionate about turning business needs into solid software architecture that stands the test of time.…I'm a seasoned software engineer with over 10 years of experience across the full software development lifecycle, specializing in building cloud-native platforms, distributed systems, and scalable microservices. I code in Go and Python and have a strong track record of delivering reliable, maintainable software and robust systems that scale under load. I value quality and craftsmanship, and I thrive in fast-paced environments that require rigorous problem-solving and collaboration. I'm proficient with modern tech like Kubernetes, gRPC, Kafka, and NATS, and I emphasize observability, telemetry, and monitoring (OpenTelemetry, Prometheus, Grafana) to keep systems healthy. I enjoy mentoring teams and shaping platform decisions, and I'm passionate about turning business needs into solid software architecture that stands the test of time.

Available to hire

I’m a seasoned software engineer with over 10 years of experience across the full software development lifecycle, specializing in building cloud-native platforms, distributed systems, and scalable microservices. I code in Go and Python and have a strong track record of delivering reliable, maintainable software and robust systems that scale under load. I value quality and craftsmanship, and I thrive in fast-paced environments that require rigorous problem-solving and collaboration.

I’m proficient with modern tech like Kubernetes, gRPC, Kafka, and NATS, and I emphasize observability, telemetry, and monitoring (OpenTelemetry, Prometheus, Grafana) to keep systems healthy. I enjoy mentoring teams and shaping platform decisions, and I’m passionate about turning business needs into solid software architecture that stands the test of time.

Skills

Experience Level

Expert

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Expert

Expert

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Intermediate

Language

Polish

Advanced

English

Fluent

Work Experience

Lead Software Engineer at Datanna

February 1, 2025 - Present

Leading design and implementation of scalable SaaS architecture for OSINT data processing platform; architecting systems for analyzing complex corporate, academic, and technological relationships; establishing technical standards for data ingestion, processing, and visualization pipelines; optimizing performance for complex queries across large datasets; mentoring engineering teams and providing technical guidance on platform development decisions.

Senior Software Engineer at Probable Labs B.V.

September 1, 2022 - December 1, 2024

Building entirely in-house from scratch a cloud-native platform to enhance and replace old tech stacks; initial planning, design, and final implementation of a distributed system for securities lending; aligning technical requirements with business objectives; delivering high reliability and performance under strict SLAs and minimal tolerance for errors; creating scalable, maintainable systems with attention to detail and quality.

Software Engineer at Viasat

August 1, 2019 - September 1, 2022

Development of a control system to support unlimited traffic plans; automated data-driven network traffic policy management; architecting labeling service for customer plans and data; building REST API for router management on top of AWS IoT and serverless solutions with API Gateway.

Software Engineer at Intel Corporation

March 1, 2014 - February 1, 2017

Built Snap open source telemetry framework for data centers and cloud solutions; developed drivers for FPGA accelerators for speech recognition and lossless compression; conducted profiling and benchmarking.

Senior Software Engineer at Misys

May 1, 2013 - March 1, 2014

Developed non-functional test frameworks and benchmarking for various environments; performed environment maintenance and test automation responsibilities.

Test Automation Engineer at Lufthansa Systems Poland

September 1, 2004 - July 1, 2006

Designed and developed test automation frameworks and scripts for regression, functional, and non-functional testing of Flight Planning and Take Off Performance applications; acted as technical lead in test automation projects; mentored newcomers.