Keke Kusters

Building production software since 2018.

I stay close to the product and the data model. Postgres-native architecture, explicit trade-offs, and codebases that stay easy to read as they grow.

How I work

Architecture decisions are operational decisions. Multi-tenancy, flaky networks, partial data, and slow connections are not edge cases; they shape what the system actually has to handle. I work close to the schema, the boundaries, and what breaks first, then let the rest of the product follow.

I have shipped early prototypes, internal tools, and platforms that had to keep running after the launch attention faded. What stays consistent across all of them is structure: fewer moving parts, RLS where it belongs, and abstractions only when they earn their place. Software you can read and change years later, not just demo once.

Who I work with

Founders, CTOs, and product teams at startups or operational businesses who care about clear structure and need systems that scale without rewrites. I take ownership of the call when it matters, push back on shortcuts that compound later, and treat the product like I will still be on call for it next year.

Rhythm

Long-form thinking takes calm, so I keep my schedule simple on purpose. The same instinct shows up in how I build: fewer pieces, fewer surprises, and decisions documented once instead of reopened every quarter.

Not a guru, not a hacker, not a visionary.

Someone who designs the boundaries, owns the trade-offs, and keeps the system honest after the launch.

Domains I have worked in

Areas where I have shipped production software and stayed responsible for it under load, in the field, and long after the first launch.

  • Industrial software

    Plant-floor metrics, alarms, and dashboards.

  • AI systems

    Retrieval, embeddings, and guardrails on Postgres.

  • Spatial computing

    Spatial AR and 3D for field conditions.

  • Low-connectivity & field tools

    Local-first stores, outboxes, and conflict rules when the job cannot stop for coverage.

  • Operational SaaS

    Multi-tenant boundaries and workflow logic.

  • Mobile platforms

    Touch-first UI for unreliable networks.