Software Engineer, Trust & Safety
Vercel · Hybrid - San Francisco, New York City · Security · listed September 12, 2025
The shape of it
Seniority
Senior
Experience asked
5+ years
Where
Hybrid
Stated pay
$208,000 – $312,000
Requirements listed
1
Length
541 words
In the posting’s own words
We are looking for a Software Engineer, Trust & Safety, to design, build, and operate the large-scale, real-time distributed systems that stop abuse and fraud on the platform, including fraud committed through AI agents, fraud that abuses deployments and compute resources, and payment fraud on token-based usage. You will write the services, detection systems, and large language model (LLM) tooling that disrupt abuse at internet scale. This is a hybrid role based in San Francisco or New York City, with three days a week in the office.
What it asks for · 1
- 5+ years of software engineering experience building large-scale, real-time distributed systems
Also a plus
- Shipped an AI-based trust and safety system to production
- Worked in abuse prevention, trust and safety, or security engineering
- Built or hosted a project on Vercel
What the job covers
- Design and build production services that detect and disrupt fraud committed through AI agents, fraud that abuses deployments and compute resources, and payment fraud on token-based usage
- Build detection systems that find abuse patterns across large datasets
- Ship LLM-driven systems for abuse detection, classification, and prevention, and build the datasets and evaluation pipelines that measure them
- Build and maintain internal tools for trust and safety workflows
- Analyze threat actor behavior to inform detection logic, and work with security, product, and infrastructure teams to move prototypes into stable production
Tools and skills named
Models & research
- LLM4×
- Fine-tuning
- Prompt engineering
Cloud & infra
- Distributed systems2×
- AWS
Languages
- JavaScript
- Python
- TypeScript
Security & compliance
- Security2×
Words the posting leans on
- abuse7×
- fraud7×
- systems7×
- build5×
- production5×
- detection4×
- safety4×
- trust4×
- engineering3×
- status3×
- abuses deployments2×
- agents fraud2×
- compute resources2×
- datasets2×
- design2×
- detection systems2×
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