Samuli Heljo Oy
Software services.
I'm a freelance application development, data and cloud engineering professional. A full description of my skills is available on LinkedIn.
About
I am a seasoned application development, data and cloud engineering professional with 25 years of experience delivering digital solutions across the public and private sectors.
My core strengths include full-stack development, data engineering, cloud engineering and DevOps, backed by proven leadership and collaboration skills.
For the last two decades, I've worked independently as a freelancer and entrepreneur, successfully managing end-to-end projects, including client relations, sales and delivery. I thrive on solving complex problems with practical, results-driven solutions.
Expertise
Agentic software engineering
Building software with frontier LLMs and AI coding agents. I design agent-driven development workflows where models plan, write, test and review code, with engineering judgment and quality control kept firmly in the loop.
Agentic workflows
Designing and building AI agents that automate real business processes. LLMs connected to your tools, data and APIs, with clear guardrails, evaluation and human oversight where it matters.
Full-stack development
Modern web applications from user interface to backend services and APIs, built on the TypeScript, Node.js, Go and Python ecosystems.
Cloud engineering
Architecture and delivery on AWS and Google Cloud: serverless and container platforms, networking, security and scalable, cost-aware infrastructure.
DevOps & infrastructure as code
Automated delivery pipelines, containerised workloads and reproducible infrastructure defined in code.
Data engineering
Data pipelines, streaming and analytics platforms, along with relational and document databases.
Leadership & delivery
Agile project management, Scrum and Kanban, requirements and testing. I take projects end to end, from client relations and sales through to delivery.
Content platforms
Headless content management integrated with modern frontends.
Contact
You can reach me on LinkedIn.