I’m Valtteri, based in Helsinki. My background is in HPC operations, cloud platforms, and security. I have hands-on experience designing and deploying HPC/AI clusters using Slurm, Ansible and Lustre.
empty.note9307@fastmail.com
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Github
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Blog
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Experience
HPC Software Consultant
Bull ↗
Sep 2023 – Present
EU (remote/on-site)
- Worldwide deployment and support of HPC and AI solutions from 10 to 2,500 compute nodes, covering system setup and customer specific customization including network configuration, OS deployment, configuration management, interconnect setup, parallel storage, batch scheduler, and monitoring, plus hands-on coordination of hardware integration during deployments.
- Supported deployments that included H200-based GPU nodes. Used standard NVIDIA and Linux tooling for basic visibility checks (inventory, driver status, thermals) when required.
- Participated in data-driven and predictive hardware replacement based on telemetry analysis, diagnostic results, and performance degradation patterns.
- Deployed a Proof of Concept for Aalto University, leveraging Rancher, Kubernetes, and Terraform to orchestrate the Jarvice XE HPC platform.
- Systems delivered and supported: FMI, Aalto, CSC, ECMWF, SIGMA2 & Novo Nordisk
Consultant & Founder
Tekve ↗
Jul 2021 – Present
Remote
- Lead ISO 27001 documentation: drafting policies, risk assessments, risk register, SoA mapping, control ownership & evidence.
- Designed and delivered Gover, a tool for managing ISO 27001 risks, controls, and review workflows.
- Cloud architecture consulting across Azure, AWS, and GCP with a focus on IAM, cloud infrastructure, and security monitoring. Selected work: Gover (2025), Efima Oyj (2024) and Cre8 Oy (2023).
Cyber Reservist
Finnish Defence Forces (C5 Agency & Command System School) ↗
Jan 2023 – Sep 2023
Finland
- Exercises in OSINT, CTI, NOC/SOC, red teaming, and forensics; contributed to hands on cyber operations and technical support.
Skills
Infrastructure and HPC
- Slurm based cluster management and job scheduling
- Kubernetes deployments for HPC and containerized workloads
- Lustre and DDN storage, networked filesystems, and parallel I/O
- Spack for building and maintaining software stacks
Methods & Tooling
- OpenAPI-based documentation and integration design
- ReactJS, Remix, TS for webdev
- Figma for design
- Azure, AWS, GCP and on-prem environments (compute, identity, storage)
- Terraform, Ansible, shell scripting and CI pipelines
- Container tooling with Docker and OCI images
- Monitoring and logging with Prometheus, Elastic and Sentinel
ISO 27001 & Governance
- Policy writing and documentation
- Risk assessment and SoA mapping
- Internal audit preparation
- Microsoft 365 and Sentinel security alignment
Education
Hive Helsinki (School 42) — Software Engineering (2021–2023)
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Finnish Defence Forces — Cyber Reservist Program, 2023
Slush 2022,2023,2025
FISC “Kyberala murroksessa” (NIS2)
Multiple CTFs (2023)
Recommendations:
Juha Martikainen — Manalead Oy — +358 50 322 4417
Certifications & Courses:
PECB — ISO/IEC 27001 Lead Auditor (2026)
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PECB — ISO/IEC 27001 Lead Implementer (2024)
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Helsingin Yliopisto — DevOps with Kubernetes (2024)
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NVIDIA - DGX A100 Product Training (Foundational) (2023)
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NVIDIA - Bright Cluster Manager (2023)
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Microsoft — Azure AD-900 (2023)
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Helsingin Yliopisto — Full Stack Open (2022)
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