About Castellum.AI
Castellum.AI is an AI layer for compliance infrastructure. We provide intelligence data, AI-driven screening across Sanction, PEPs, and Adverse Media, and AI Agents to resolve alerts. Our customers have seen results like reducing their false positive rate by 94% via our screening engine and reducing the amount of time analysts spend on alerts by 80% by using our AI Agents. Our customers include top global banks, Fortune 50s, top payments companies, digital assets companies and multiple governments and we're scaling quickly to meet demand.
What you’ll own
The scrapers that feed the platform. Build and maintain the scrapers pulling in sanctions lists, watchlists, and regulatory sources
Our Python ETL pipelines. Turn raw data into something the product can trust, and scale the pipelines as we add sources and volume.
Data quality and freshness. You'll keep what lands in the platform accurate, current, and deduplicated
New sources, end to end. Take a source from "we need this" to live in the pipeline.
More of the stack, over time. Room to grow into our Go API, AI agents, and TypeScript/React frontend as you ramp and depending on your interests.
What your week actually looks like
~1 hour/day in meetings. Standup, sprint planning, retro. We keep it light.
The rest of the day is building. Writing and maintaining web scrapers, building and improving our Python ETL pipelines, and getting new data sources into the platform cleanly and reliably.
Ownership that grows with you. You'll start with well-scoped projects and plenty of support, and take on more end-to-end ownership as you ramp.
We run a modern stack (Docker, Kubernetes, and similar tooling), and you have a dedicated DevOps engineer handling the heavy infrastructure lifting so you can stay focused on building.
Our stack
Agents & ETL / data pipelines: Python
API layer: Go, gRPC, protobufs
Frontend: TypeScript + React
Data: PostgreSQL, Elasticsearch
Who thrives here
Our strongest engineers share a few traits:
Curiosity and urgency. They want to understand how things work, they move quickly, and they care about getting things done. They're comfortable on a small team where shipping matters.
They turn a problem into working code. They can take a task and build it.
Good judgment, including with AI. They use AI tools well without leaning on them blindly. They notice when the model makes the wrong tradeoff, and they ship code they understand and stand behind.
Clear communicators. They communicate well within engineering, ask when something's unclear, and will push back on a decision but can disagree and commit.
Eager to grow. They want to level up into more of the stack and take feedback as a way to get there faster.
What we're looking for
Required
0–4 years of experience building software: professional experience, internships, or strong personal/open-source projects all count.
Python experience
Comfort working with data and relational databases (PostgreSQL or similar)
Clear written and verbal communication
You get real value out of AI developer tools
You're excited to work at a start up on a small, fast-moving team
Nice to have
Experience building web scrapers or ETL / data pipelines
Exposure to Go or TypeScript/React (or a strong desire to learn them)
Experience with Elasticsearch, gRPC/protobufs
Experience building AI agents
Prior startup or small, fast-moving team experience
How we work
Fully remote, US-based, working Eastern hours.
We work hard but we don't burn out. Expect ~45–50 hour weeks. Life happens, and there's real flexibility when it does.
We like each other. We have as much fun as we can while we work, and it's genuinely exciting to watch the business take off.
A straightforward hiring process:
We move fast and we don't believe in endless interview loops. Most candidates can move at their own pace, as quickly as four days. Every stage is designed to be a real conversation.
Intro Call: Meet with our CTO to talk through the role.
Architecture Interview: We'll take a larger problem and break it down together on a virtual whiteboard. We're looking at how you structure a solution and reason about the pieces, not whether you memorized anything.
Coding Interview: Solve a problem and walk us through your thinking. We care more about how you approach it than about a perfect answer.
Final Round: Meet people outside of engineering, get a feel for the wider team, and ask us anything about the business.
Compensation
$100,000–$130,000 base, plus equity. This is a rare chance to earn meaningful equity while working on a mission with real-world impact.
Perks and Benefits (Full-time Employees):
Remote-first workplace
Unlimited PTO
Paid parental leave
Medical, dental, and vision (100% coverage for employees)
401(k) through Vestwell
Stipends:
One-time: $350 stipend for home office setup
Monthly: $350 coworking, $100 phone, $100 home internet, childcare or petcare when attending work events
Annual: up to $5,000 professional development
Castellum.AI is building a healthy, respectful, and intellectually rigorous environment. If this sounds like you, we'd love to talk.
0–4 years building software, Python experience, data and relational database experience, clear communication, and ability to use AI developer tools; PostgreSQL, web scraping, ETL, or pipeline experience is beneficial.
Key Responsibilities
- building scrapers
- scaling pipelines
- ensuring data quality
Skills & Tools
Python, PostgreSQL, Go, gRPC, Protocol Buffers (protobufs), TypeScript, React, Elasticsearch, Docker, Kubernetes, Microsoft? no
Job Details
- Category: Software Development
- Seniority: No Prior Experience Required
- Commitment: Full Time
- Workplace: Remote — New York City, New York, United States
- Salary: USD 100,000 – 130,000 / year
- Languages: English
Benefits
- Generous paid time off
- Retirement plan
- Generous parental leave
About Castellum.AI
An AI compliance infrastructure provider offering screening intelligence and alert-resolution agents. — Industry: Information Technology