Technical co-founder

Salary Competitive

We're building an AI-native company to transform construction approvals.

We're looking for a technical co-founder and future CTO.

Not a hire. A founder.

You have built and shipped products before, have strong software engineering fundamentals, and are comfortable working across modern AI and cloud-native technologies. You move fast, thrive in ambiguity, and enjoy solving hard problems.

Most importantly, you're ambitious. You want to build something meaningful, think long-term, and have the commitment and resilience to push through obstacles when others give up.

You'll have meaningful equity, full ownership of technology, and the opportunity to help build a category-defining company from day one.

If that sounds interesting, let's talk.

Perks and benefits

This job comes with several perks and benefits

Near public transit
Near public transit

Free office snacks
Free office snacks

Gym access
Gym access

Social gatherings
Social gatherings

Equity package
Equity package

New tech gear
New tech gear

See all 7 benefits

Working at
Co-sak

Our Mission Modern organizations are constrained not by a lack of intelligence, but by the way intelligence is applied. Decisions that should be systematic, auditable, and repeatable are instead handled through informal processes, institutional memory, and ad-hoc judgment. This creates inconsistency, opacity, and risk at scale. Our mission is to bureaucratize AI, not to add friction, but to add structure. We believe the next phase of artificial intelligence is not about replacing human judgment, but about formalizing it. By embedding AI into well-defined procedures, rules, and workflows, we aim to make complex decision-making reliable, transparent, and governable across organizations. Decision Support We build AI decision support systems that operate as institutional infrastructure rather than isolated tools. These systems do not issue commands; they surface options, trade-offs, and consequences in a way that aligns with organizational policy and accountability. By combining machine learning with explicit process design, our platforms augment human operators while preserving oversight and intent. Decisions become faster without becoming arbitrary, and scalable without becoming opaque. In doing so, we enable organizations to apply intelligence consistently at the speed and scale their operations require.

Read more about Co-sak

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