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Hi, I’m Pieter Polmans, a Medior DevOps & Systems Engineer who thrives on turning chaotic production environments into clean, reliable systems. I focus on automation, CI/CD, cloud migrations, and building trusted platforms that teams can depend on. I enjoy solving hard problems, modernizing outdated architectures, and removing technical debt with pragmatic, scalable solutions. In fast-paced startups and established enterprises alike, I design and implement automation pipelines, improve infrastructure reliability, and shorten development cycles. I’m a fast learner who works well independently, communicates clearly, and strives to leave every project in a stronger, well-documented state than when I arrived.…Hi, I’m Pieter Polmans, a Medior DevOps & Systems Engineer who thrives on turning chaotic production environments into clean, reliable systems. I focus on automation, CI/CD, cloud migrations, and building trusted platforms that teams can depend on. I enjoy solving hard problems, modernizing outdated architectures, and removing technical debt with pragmatic, scalable solutions. In fast-paced startups and established enterprises alike, I design and implement automation pipelines, improve infrastructure reliability, and shorten development cycles. I’m a fast learner who works well independently, communicates clearly, and strives to leave every project in a stronger, well-documented state than when I arrived.

Pieter Polmans

DevOps Developer, Cloud Developer, Full Stack Developer, +3

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Hi, I’m Pieter Polmans, a Medior DevOps & Systems Engineer who thrives on turning chaotic production environments into clean, reliable systems. I focus on automation, CI/CD, cloud migrations, and building trusted platforms that teams can depend on. I enjoy solving hard problems, modernizing outdated architectures, and removing technical debt with pragmatic, scalable solutions. In fast-paced startups and established enterprises alike, I design and implement automation pipelines, improve infrastructure reliability, and shorten development cycles. I’m a fast learner who works well independently, communicates clearly, and strives to leave every project in a stronger, well-documented state than when I arrived.…Hi, I’m Pieter Polmans, a Medior DevOps & Systems Engineer who thrives on turning chaotic production environments into clean, reliable systems. I focus on automation, CI/CD, cloud migrations, and building trusted platforms that teams can depend on. I enjoy solving hard problems, modernizing outdated architectures, and removing technical debt with pragmatic, scalable solutions. In fast-paced startups and established enterprises alike, I design and implement automation pipelines, improve infrastructure reliability, and shorten development cycles. I’m a fast learner who works well independently, communicates clearly, and strives to leave every project in a stronger, well-documented state than when I arrived.

Available to hire

Hi, I’m Pieter Polmans, a Medior DevOps & Systems Engineer who thrives on turning chaotic production environments into clean, reliable systems. I focus on automation, CI/CD, cloud migrations, and building trusted platforms that teams can depend on. I enjoy solving hard problems, modernizing outdated architectures, and removing technical debt with pragmatic, scalable solutions.

In fast-paced startups and established enterprises alike, I design and implement automation pipelines, improve infrastructure reliability, and shorten development cycles. I’m a fast learner who works well independently, communicates clearly, and strives to leave every project in a stronger, well-documented state than when I arrived.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Freelance Yocto Developer at Audac

January 1, 2022 - January 1, 2025

Designed and implemented an over-the-air (OTA) update mechanism that securely downloads update payloads to internal storage, communicates update intent to the bootloader via a reserved memory region, and triggers the Recovery OS on reboot to apply updates. Scripting the download and verification logic, ensuring correct placement of update files, and making the update trigger reliable and repeatable within hardware/bootloader constraints.

Freelance System Administrator at DeltaBlue

January 1, 2022 - January 1, 2024

Modernized CI/CD and configuration management. Replaced Jenkins with GitLab CI, set up Nexus for Docker images, refactored Puppet manifests into Roles/Profiles, introduced Puppet Librarian, and used Ansible to inventory and upgrade servers, enabling a controlled Puppet/Ubuntu upgrade path across the estate.

Consultant at Inuits

January 1, 2020 - January 1, 2022

Delivered daily operations support in a mature open-source oriented environment. Contributed to trunk-based development, containerized workloads (Docker), CI/CD (Jenkins, GitLab CI), and configuration management (Puppet), while integrating broader tools like Ansible, Terraform, Grafana, and Icinga to improve reliability and observability.

System Administrator at Boekentoren (Inuits)

January 1, 2020 - January 1, 2022

Assumed responsibility for bespoke infrastructure, refactored Puppet modules for maintainability, reduced day-to-day maintenance, and aligned configurations with internal standards to improve long-term reliability.

DevOps Team Member at AvioBook (Inuits)

January 1, 2021 - January 1, 2022

Evaluated and planned the transition from legacy container orchestration to a modern solution. Selected Amazon EKS as the target, and introduced ArgoCD for GitOps-based deployments, ensuring changes made via dashboards could be reconciled back into Git to prevent drift.

Firmware Developer at Dillen.io

January 1, 2019 - December 31, 2019

Developed firmware for a room automation system, integrating multiple sensors and actuators, designed a lightweight inter-core protocol, introduced a Kanban workflow for a small team, and produced testing tools for ESD/compliance checks. Delivered a functional firmware update under critical deployment conditions.

Consultant at Nalys

January 1, 2019 - January 1, 2020

Intensive two-month training program covering shell scripting, embedded C, Vim, GitLab CI, and Agile problem solving. Contributed to a group project in C++ and established a collaborative workflow using private GitLab repositories.

Project for Punch Powertrain at Nalys

January 1, 2020 - December 31, 2020

Automated a manual Excel/CSV data conversion workflow into a proprietary format using Python. Developed a configurable mapping layer to handle typos and varying data formats and established a GitLab-based collaboration workflow in a resource-constrained environment.

Cloud Migration Pilot Project at SoftAtHome (Nalys)

January 1, 2019 - December 31, 2020

Evaluated the feasibility of migrating on-prem Kubernetes to the cloud. Built a PoC in GKE configuring GitLab, Git Large File Storage, and a GitLab Runner, validated via a realistic kernel-repo stress test, and produced a cost comparison to guide future migration decisions.

DevOps Consultant at Inuits

January 1, 2020 - January 1, 2022

Supported daily operations in a mature, open-source–oriented infrastructure. Contributed to trunk-based development, containerized workloads (Docker), and CI/CD pipelines (Jenkins, GitLab CI). Worked with Puppet, Ansible, Terraform, Grafana, and Icinga, improving reliability, incident resolution, and infrastructure evolution. Delivered internal and public knowledge-sharing sessions to promote practical DevOps practices and infrastructure literacy.

DevOps Team Member at Inuits

January 1, 2021 - January 1, 2022

Evaluated and planned a transition from an aging container orchestration platform to a modern solution. Identified Amazon EKS as the best-fit option and introduced ArgoCD for GitOps-based CI/CD. Established reconciling UI changes back into Git to prevent drift and maintain a single source of truth, enabling safer, declarative deployments.

Trainee at Nalys

January 1, 2019 - January 1, 2020

Two-month intensive traineeship focused on shell scripting, embedded C, and GitLab CI. Gained practical experience in Vim, project collaboration, and problem-solving under time constraints. Completed a group project building a C++ chat application to reinforce teamwork and engineering fundamentals.

Python Developer / Automation Tool Lead at Punch Powertrain (Nalys)

January 1, 2020 - December 31, 2020

Automated a manual data flow by converting Excel/CSV inputs into a proprietary format. Implemented a Python-based tool with a flexible configuration layer for column/row mappings and typo handling, enabling non-developers to adjust parsing rules. Set up a private GitLab repository to collaborate with a small team and delivered a reliable automation tool to streamline engineering workflows.

Cloud Migration Consultant at SoftAtHome (Nalys)

January 1, 2019 - January 1, 2020

Assessed the feasibility of migrating an on-premises Kubernetes environment to the cloud. Built a PoC in Google Kubernetes Engine (GKE) configuring GitLab, Git Large File Storage, and a GitLab Runner. Demonstrated reproducible workflows in a managed environment and produced a cost analysis comparing on-premises vs. cloud economics.

Yocto Developer (Freelance) at Audac

January 1, 2022 - December 31, 2025

Designed and implemented an over-the-air (OTA) update mechanism compatible with device hardware and bootloader architecture. Enabled secure on-device download of update payloads to internal storage and used bootloader-accessible memory regions to signal pending updates. The bootloader then launched the Recovery OS on reboot to apply the update. This involved careful handling of filesystem layout, partition behavior, and interaction between the main OS, Recovery OS, and the bootloader. Implemented download and verification logic, correct placement of update files, and a reliable, repeatable trigger mechanism.

System Administrator at DeltaBlue

January 1, 2022 - December 31, 2024

Modernized CI/CD and configuration management to enable reliable Puppet upgrades across a large fleet. Replaced Jenkins with GitLab CI, introduced a Nexus repository for Docker images, refactored Puppet code into Roles and Profiles, and integrated Puppet Librarian for module management. Used Ansible to inventory and categorize over a thousand servers by upgrade feasibility, testing on a controlled subset before rolling out upgrades.

API Deployment Framework Engineer at DeltaBlue

January 1, 2022 - December 31, 2024

Designed and implemented a unified API deployment framework enabling safe rollouts and rollbacks across multi-node deployments. Built Docker images for runtime and build dependencies, created versioned wrapper scripts for packaging, and templated GitLab CI pipelines to standardize deployments. Defined tooling for reliable installation and upgrades, ensuring consistency and reducing manual intervention across services.

Consultant (Nalys Traineeship) at Nalys

January 1, 2019 - December 31, 2020

Completed an intensive traineeship to quickly build depth in shell scripting, embedded C, GitLab CI, and related tooling. Participated in a group project delivering a C++ chat application, and prepared for consulting engagements with rapid hands-on practice.

Cloud Migration Pilot at SoftAtHome (Nalys)

January 1, 2019 - December 31, 2020

Assessed feasibility of migrating on-prem Kubernetes to the cloud. Implemented a PoC in Google Kubernetes Engine (GKE) with GitLab configurations and conducted a cost analysis comparing on-prem versus cloud, informing future migration decisions.

Python Developer at Punch Powertrain (Nalys)

January 1, 2020 - December 31, 2020

Automated a data conversion workflow to transform Excel/CSV inputs into a proprietary format using Python. Built a flexible configuration layer for mappings, typos, and parsing rules, enabling non-developers to adjust processing rules without code changes.

Project at Punch Powertrain (Nalys)

January 1, 2020 - January 1, 2020

Automated a data-conversion workflow that transformed client Excel/CSV inputs into a proprietary format. Built a flexible configuration layer for column/row mappings and parsing rules, enabling non-developers to adapt parsing logic without code changes.

DevOps Consultant at SoftAtHome (Nalys)

January 1, 2019 - January 1, 2020

Evaluated cloud migration viability and demonstrated a PoC on Google Kubernetes Engine (GKE) with GitLab integration (GitLab, Git LFS, GitLab Runner). Produced a comparative cost analysis to support cloud migration decisions and extended engagement based on PoC success.

Embedded Linux Engineer at PVS

January 1, 2022 - December 31, 2022

Investigated and resolved an SD card formatting issue where the data partition failed to expand to the full card capacity due to a configuration mistake. Because the recovery environment lacked tooling to safely extend partitions, I implemented a runtime solution within the Yocto build that fetched required tooling and executed a self-extracting archive to extend the data partition safely. Added safeguards to prevent repeated destructive runs and to minimize disruption across updates.

API Deployment Framework Architect at DeltaBlue

January 1, 2022 - December 31, 2024

Built a unified, pipeline-driven deployment framework for multiple APIs. Defined how APIs are built, packaged, and released with Docker images, version-controlled wrapper scripts, reusable GitLab CI templates, and robust packaging/service-definition tooling to ensure reliable installation, upgrades, and rollbacks across multi-node deployments.

Consultant, Daily Operations at Inuits

January 1, 2020 - December 31, 2022

Maintained a mature, open-source-oriented infrastructure. Worked with Docker, Jenkins and GitLab CI for CI/CD, Puppet for configuration, and broader tools like Ansible, Terraform, Grafana, and Icinga. Focused on reliability, incident resolution, and improving documentation and reproducibility. Delivered multiple tech talks and internal training to share knowledge and promote onboarding.

Cloud Migration Consultant at Nalys (SoftAtHome)

January 1, 2019 - December 31, 2020

Assessed feasibility of migrating SoftAtHome’s on-prem Kubernetes to the cloud. Built a PoC in Google Kubernetes Engine (GKE) including GitLab configuration and load testing against the Linux kernel repository, and produced a cost analysis comparing on-prem vs. cloud maintenance and energy usage. Resulted in a decision to pursue cloud strategy and extended engagement.

Python Data Tool Architect at Nalys (Punch Powertrain project)

January 1, 2020 - December 31, 2020

Automated conversion of client-provided Excel/CSV inputs to a proprietary format. Implemented a flexible configuration layer for column/row mappings and typo handling, enabling non-developers to adjust parsing rules without code changes. Organized collaboration via a private GitLab repository and kept scope realistic.