--- title: "CV" description: "CV for Adam Pietrzycki, a Senior Platform Engineer working across AWS, Kubernetes, cloud security and DevSecOps." url: https://adampie.dev/cv/ --- # CV > Please send me an email at _adam[@]pietrzycki[.]com_ if you would like the pdf version of my CV ## Profile DevSecOps professional with a background in SRE, DevOps, and Cloud Security. Experienced in developing secure and resilient systems at scale, implementing preventative security measures and responsive threat mitigation strategies across enterprise environments. I take part in conferences and tech meetups to build professional connections and stay current with AWS, Kubernetes, serverless architectures, and emerging security challenges. ## Roles and Positions | Position | Company | Duration | |-----------------------------------------|----------------|-------------------| | Senior Platform Engineer | Risk Ledger | 01/2026 - Present | | Senior Infrastructure Security Engineer | Zapier | 03/2025 - 01/2026 | | Cloud Security Engineer | Zapier | 04/2023 - 03/2025 | | Site Reliability Engineer | Zapier | 11/2021 - 04/2023 | | Senior Software Engineer | X-Lab Systems | 09/2020 - 11/2021 | | DevOps Engineer | Heycar | 10/2019 - 09/2020 | | Consultant | Infinity Works | 07/2018 - 09/2019 | | Associate Consultant | Infinity Works | 08/2017 - 07/2018 | ## Certifications | Certification | Credential ID | Duration | |----------------------------------|-----------------------------------------------------------------------------------------------------------|-------------------| | Wiz Certified Cloud Fundamentals | [0xed9190e5a8f5a...](https://certified.training.wiz.io/caff7b01-7c63-487c-b238-9b3015ebf906#acc.zy2jHArM) | 05/2025 - 05/2027 | ## Technologies | Type | Technologies | |------------|----------------------------------------------------------------| | Cloud | AWS, GCP, Azure | | Containers | AWS EKS, AWS ECS, OpenShift | | IaC | Terraform, AWS CloudFormation, AWS CDK | | CI/CD | GitHub Actions, GitLab CI, ArgoCD, Jenkins, CircleCI, Atlantis | | CSPM/Tools | Wiz, Sysdig, tfsec, trivy, OPA | | SIEM | Panther, Splunk | | Code | Go, Python, Typescript, Bash | | Compliance | SOC2, CIS AWS, CIS EKS, AWS Well-Architected, AWS FTR | | AI | Claude Code, Cursor, Codex, Gemini CLI | ## Projects ### Risk Ledger - Refined the disaster recovery process and refactored IaC to allow recovering to a diffing AWS account and different region. - Rolled out Wiz Cloud, Defend, and Code across the cloud and SCM providers. - Upgraded all PostgreSQL databases running close to end-of-life versions to the latest stable version. ### Zapier (Security) - Led technical remediation for the AWS Foundational Technical Review (FTR) program across 100+ AWS accounts, for Zapier to be listed on the AWS Marketplace and qualify for Co-selling. - Developed and maintained secure base Docker images for Python, Node, and CI with automated patching workflows, reducing critical and high CVEs from 30k to 100s across 15k pods. - Refactored IaC (Terraform/CloudFormation) for SSO and RBAC across 100+ AWS accounts, reducing execution time from 40+ minutes to minutes. - Identified and removed legacy infrastructure through security assessments, achieving $500,000 annual cost savings. - Rolled out Wiz CSPM/CNAPP across multi-cloud infrastructure (AWS, GCP, Azure) and all Kubernetes clusters for unified security visibility and compliance. - Led the infrastructure migration of the crypto-kernel system (processing up to 80k requests/second for OAuth tokens/API keys) from shared EC2 to a dedicated AWS account and Kubernetes clusters, completing a successful handover to service owners. ### Zapier (SRE) - Extracted customer-facing webhook endpoints from the monolith into a dedicated service, managing traffic migration up to 20k requests/second using canary deployment techniques. - Introduced scaling compute using AWS SQS queues and KEDA for event-driven workloads, reducing infrastructure costs during quieter hours of traffic. - Worked on improving SLO adoption across Compute teams through driving learning sessions and pairing with teams. ### X-Lab Systems - Migrated the National Pathology Exchange (NPEx) from on-premise to Azure cloud infrastructure to scale for pandemic response, supporting 6-10 million COVID-19 tests daily. - Worked with the NCSC SOC to ensure the cloud infrastructure was secure and compliant, and used Splunk SIEM for tracking COVID test logs. - Collaborated with NHS networking partners to establish cloud peering and transit networks, connecting Azure environments to NHS SPINE and laboratory networks. ### Heycar - DevOps Team Lead, worked on migrating the Lambda monolith to run on Kubernetes, reducing load times by 3 seconds, resulting in an increase of sales by 40%. - Implemented pull request preview environments, enabling marketing and design teams to review features during development. - Developed business continuity plans and assisted the finance team development tax credit applications. ### Infinity Works - Delivered cloud and Kubernetes migrations for enterprise clients including Sainsbury’s Group, Santander, and BP. - Migrated Teradata infrastructure to AWS and Snowflake, updating existing processes and data flows. - Worked on ensuring the cloud infrastructure was secure and compliant against various banking and retail standards, including CIS frameworks. - Improved code integration and delivery pipelines, integrating pull request environments and security tools such as tfsec, trivy, and blackduck. ## Education BSc Computer Science – Upper Second-Class Honours _University of Brighton_ ## References Available upon request