15 Side Project Ideas for Platform Engineers in 2026

By Cristian Lascu · The Sovereign Technologist

Platform engineers build the systems every other engineer depends on — and that systemic impact is exactly why there's a strong market for platform expertise outside any single company. If you've built internal developer platforms, deployment pipelines, or observability systems, there are companies right now that need exactly what you know. These ideas help you start converting that expertise into independent income.

Quick-start side projects for platform engineers

CI/CD pipeline setup as a productized servicebeginner1–3 weeks
Package your pipeline setup as a fixed-scope, fixed-price offering. A complete GitHub Actions or GitLab CI setup delivered in 5 business days. Startups consistently underinvest in this and pay well for expertise.
high potential
Platform engineering retainer for startupsintermediate3–6 weeks
Offer a monthly retainer covering platform maintenance, incident response support, and architecture advice for early-stage companies that can't afford a full-time platform hire.
high potential
Kubernetes audit and optimisation serviceintermediate2–4 weeks
A 2-week Kubernetes cluster audit: cost efficiency, security posture, deployment patterns, and reliability. Deliver a prioritised action plan. Many companies are running Kubernetes poorly and know it.
high potential
Internal developer portal templatesbeginner2–4 weeks
Sell Backstage templates, runbook templates, or IDP starter kits as downloadable products. Platform engineers who are starting from scratch will pay for a head start.
medium potential
Cloud cost optimisation advisoryintermediate2–4 weeks
Help companies cut their AWS/GCP/Azure bills by 20–40%. This is one of the most in-demand infrastructure services right now, and the results are immediately measurable.
high potential

Scalable platform engineering side projects

Platform engineering course or bootcampintermediate3–5 months
Teach platform engineering concepts — IDP design, Backstage, Crossplane, or platform metrics — as an online course. Senior practitioners willing to pay €500–€2,000 for structured learning from someone who's done it.
high potential
Developer experience (DevEx) consultingintermediate4–6 weeks
Specialise in measuring and improving developer productivity. Audit developer workflows, instrument DORA metrics, and deliver a prioritised improvement roadmap.
high potential
Open-source platform toolingadvanced6–12 months
Build a useful open-source tool for the platform community — a Kubernetes operator, a Backstage plugin, or a Terraform module. Community adoption leads to consulting inbound and commercial sponsorship.
medium potential
Observability and reliability auditintermediate2–4 weeks
Assess a company's monitoring, alerting, and on-call setup. Deliver specific recommendations for reducing MTTR and alert fatigue. Companies mid-scaling are constantly overwhelmed by this.
high potential
Technical newsletter on platform engineeringbeginner4–8 months
A weekly email covering IDP design decisions, tooling trade-offs, and platform metrics. Builds audience, attracts consulting clients, and can monetize through sponsorships from the tooling vendors you already use.
high potential

Pro tips

→Your competitive advantage is that you've seen what bad looks like inside companies. Lead with the cost of getting this wrong — not just the benefit of getting it right.
→Startups in the Series A–B stage are your sweet spot. They're scaling fast, their platform is breaking, and they don't have a platform team yet.
→Cloud cost savings are tangible ROI you can quantify before you start. A 30% AWS bill reduction on a €50k/month spend is €15k/month saved — easy to justify your fee.
→Open source is the best long-term marketing for platform engineers. One useful Backstage plugin or Terraform module can generate consulting leads for years.

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The Sovereign Technologist newsletter covers how to execute on 15 side project ideas for platform engineers in 2026 — and everything else mid-to-senior technologists need to build leverage alongside a demanding job.

Frequently asked questions

What side projects are best for platform engineers?

Cloud cost optimisation, CI/CD setup services, and Kubernetes audits have the fastest time-to-first-revenue. They directly apply your existing skills and solve problems companies are actively paying to fix.

How do platform engineers find consulting clients?

LinkedIn outreach to CTOs and VPs of Engineering at Series A–C companies, referrals from former colleagues, and content marketing (newsletter or Twitter/X) that demonstrates platform expertise. Vendor partner programs also send referrals.

Is platform engineering in demand as a freelance service?

Yes — it's growing fast. The shift from DevOps to platform engineering is still happening at most companies, which means there's a wave of companies actively building or fixing their platforms. Independent consultants with IDP and Backstage experience are especially sought-after.

Can I run a platform engineering side project alongside my job?

Productized services (audits, setup packages) typically require 5–15 hours per week — manageable alongside a full-time role. Retainer clients add more commitment but provide predictable recurring income.

Turn platform expertise into independent income

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