Founding AI Engineer

About Closure

Closure helps law enforcement search evidence and solve crime. We build digital analysts that support public servants at every level of criminal justice.

Public servants across the U.S. use Closure to expedite investigations into cold cases, homicides, gang conflicts, sexual assault, and other serious offenses, as well as critical administrative support.

We’re live with police departments, prosecutors, sheriffs, state investigative agencies, and other criminal justice stakeholders across the country, reducing evidence overload across the criminal justice system.

Closure is an intentionally tight-knit team of ambitious ex-Palantir and ex-IDF engineers and operators. We operate with high speed, high integrity, high autonomy, and low ego (or so we like to think), backed by reputable investors including Y Combinator, CRV, Pathlight, and others.

Read more about our work, here:

• Axios, AI is reshaping police detective work, starting with cold cases
• Comstock’s Magazine, “Murder: Solved. Local investigators see new hope with Closure AI platform”
• Breaking Battlegrounds Podcast, Interview with Aaron Zelinger & DA Dan Dow, San Luis Obispo County
• Shots Fired Podcast, “Being a Cop in Alaska is Nothing like you think”

Role Description:

• Backend-Depth, AI-Grounding: We’re looking for a backend engineer with deep experience & interest in applying AI in the real world.
• Backend-Grounding: You can build resilient, secure distributed systems, with comfort across programming languages (esp. Python, TypeScript, etc.) and infrastructure providers.
• AI-Depth: Experience deploying LLMs, VLMs, and/or other ML in real-world settings. Bonus if you've worked with or are excited by agentic experiences—systems that reason, plan, and take actions across data.
• Data Versatility: Designed RAG or similar pipelines for unstructured data, and know how to build for structured data too (query planning, semantic modeling, or structured reasoning).
• Adaptability: We move fast, and new models / approaches to infrastructure are constantly coming online. You are naturally curious (and keep up with) the latest in AI.

About You

• Mission-Driven: Excited to contribute to U.S. government competence and public safety.
• Owner-Builder Mindset: Bias toward action, thrives in extremely fast-paced environments. Looking to do the best work of your life.
• Comfort with Ambiguity: We are an early-stage startup with many exciting questions to be answered; you run toward unasked and unanswered questions.

Location:

• New York City (Preferred)
• Bay Area, California (hybrid work arrangements available)

Additional Details:

• Comp
• Salary: $165k-$250k, with potential for significant adjustments based on experience and ability
• Equity: Meaningful ownership stake at founding-hire levels
• Bonuses based on company performance
• Benefits:
• We contribute 3% to your 401(k), regardless of your own contribution
• Unlimited PTO
• Health, Dental (Direct or Reimbursed)
• Short- & Long-term Disability Insurance
• Life Insurance
• Discounted Gym & Class Membership
• Criminal Justice:
• Criminal Justice Ready: Given the sensitivity of our work, we support employees through FBI background checks / CJIS clearance process as needed

Closure is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other legally protected characteristic.