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Petr R.PR

Petr R.

Senior Software Engineer

€ 700/dag
Haarlem, NL
15+ jaar

Gemiddelde responstijd: 1 uur

Over Petr

I help companies design, scale, and optimize their cloud-native platforms so they run faster, more reliably, and at a lower cost. With 18 years of backend engineering experience, I specialize in distributed systems, cloud infrastructure, and real-time data processing.

If your team is struggling with rising cloud bills, latency bottlenecks, or the complexity of Kubernetes and service-to-service integrations, I can step in and deliver practical solutions. At Dott, I optimized telemetry pipelines for 200k+ vehicles, saving over €100K per year in cloud costs, doubling throughput, and cutting latency by 50%. I also migrated critical services with zero downtime to GKE, redesigned telemetry storage using Bigtable + Pub/Sub (reducing DB costs by 75%), and built out monitoring/alerting with Grafana, Prometheus, and OpenTelemetry for full visibility.

I’m equally comfortable building new backend services from scratch as I am auditing existing systems to identify cost savings and performance improvements. Typical projects I take on include:
• Cloud cost optimization (GCP/AWS)
• Distributed system & architecture design
• Zero-downtime migrations to Kubernetes
• Backend development in Go & TypeScript
• Monitoring, observability & incident readiness
• Mentoring & interview prep for engineering teams

What sets me apart is my ability to not only solve urgent technical challenges but also to transfer that knowledge to your team. Whether it’s through hands-on collaboration, code reviews, or mentoring juniors, I make sure improvements last long after my engagement ends.

If you need someone who can quickly understand your challenges, deliver results, and leave your team stronger, let’s connect.
  • Engels

    Tweetalig / moedertaal

  • Russisch

    Tweetalig / moedertaal

Uitsluitend remote
Werkt voornamelijk remote

Werkervaring

  • Dott Netherlands
    Senior Software Engineer II
    september 2022 - Vandaag (3 jaren en 9 maanden)
    Amsterdam, Netherlands
    Our team ensures that hundreds of thousands of vehicles from several vendors are always online and every telemetry message or command is processed within a second. These are the most latency-critical services in TIER-Dott. My most notable achievements:
    • My expertise in optimizing telemetry processing has saved $100K+ in cloud annual costs.
    • Solved critical scaling issues that caused massive delays in telemetry processing during unexpectedly high demands. This allowed the system to handle 2x traffic, reducing average processing latency by around 50%.
    • Solved telemetry history database scaling bottlenecks by switching to Bigtable and reduced coupling by separating producer and consumer with Cloud Pub/Sub. This reduced database costs by 75% while providing sub-100ms average access to telemetry history at any time in the past.
    • Set up monitoring, alerting rules, and dashboards, which resulted in greater visibility on how services are performing and reduced time to identify and fix production issues.
    • Migrated several services with zero downtime to the new platform based on GKE and contributed to the platform's infrastructure code to implement features required to run the services. Transitioned all monitoring dashboards to Grafana.

    Technologies: Node.js, TypeScript, Go, Docker, Terraform, GitHub Actions, Google Cloud Platform (GCP), Bigtable, Cloud Pub/Sub, Kubernetes, Helm, ArgoCD, Grafana, Prometheus, OpenTelemetry
    Typescript Node.js Google cloud PostgreSQL AI Automation
  • Dott Netherlands
    Senior Software Engineer
    februari 2021 - augustus 2022 (1 jaar en 6 maanden)
    Amsterdam, Netherlands
    I worked in a small team where I highly contributed to the following achievements:
    • Replaced third-party service for SMS phone number verification with an in-house solution built with Go to slash the costs by 90% and increase deliverability by 15% while also providing higher availability and 2x less latency
    • Created identity and access management service, a key element in the infrastructure to enable service-to-service authentication and complex authorization policies for employees and users.
    • Set up monitoring, alerting rules, and dashboards, which resulted in greater visibility on how services are performing, and reduced time to identify and fix production issues.
    • Migrated most of Dott's infrastructure in Google Cloud to Terraform configuration for better accountability of resources and to reduce the risk of human error during infrastructure changes.
    • 100% test coverage by default.

    Technologies: Node.js, TypeScript, Go, Docker, Terraform, GitHub Actions, Google Cloud Platform (GCP)
  • Verifone
    Senior Software Engineer
    DIGITAAL BUREAU & IT-CONSULTANCY
    april 2019 - januari 2021 (1 jaar en 9 maanden)
    Amsterdam, Netherlands
    I moved to Amsterdam to work for Verfione/Dimebox.
    • Worked on the new modular payment gateway for Verifone
    • Developed a high-load anti-fraud service using Go. The average response time is 2 ms.
    • Made lots of performance optimizations for heavy requests in the payment gateway. Up to 4x improvement in response time.
    • Set up CI pipelines for several services to lint, test, and build docker images for deployments.

    Technologies: Node.js, TypeScript, Go, Docker, JMeter Go

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Opleidingen

  • Master Degree in Computer Science
    Nizhniy Novgorod State Technical University (NSTU)
    Master Degree in Computer Science

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