Javascript Developer Internship Jobs in California

Build a Safer World.
TRM Labs provides AI-powered intelligence solutions that help public and private sector agencies investigate and disrupt crime. TRM's platforms enable investigators to trace illicit activity, build cases, and construct operating pictures of threat networks. Leading agencies and businesses worldwide rely on TRM to make the world safer and more secure.
At TRM, writing code can literally save lives. Our platform helps governments, financial institutions, and crypto companies detect and prevent financial crime - from terrorist financing to human trafficking. The Full-Stack Product Engineering team builds the core products and services that make this possible, from customer-facing applications to foundational APIs and internal tools. We're looking for an early-career engineer who's eager to grow quickly by shipping real-world features and contributing directly to this mission.
As a Product Engineer, you'll work alongside experienced mentors, product managers, and designers to solve complex problems, write production-grade code, and build features that matter. You'll gain exposure across the full stack-React, Node.js, Postgres-and be part of a high-velocity team building the infrastructure of trust for the crypto economy.
The impact you'll have here:

• Build and ship full-stack features across TRM's core products and internal tools, with guidance and mentorship from senior engineers.
• Collaborate cross-functionally to clarify requirements, ask smart questions, and break down complex problems into shippable pieces.
• Learn how to design and build APIs and services with scalability, performance, and maintainability in mind.
• Write clean, tested, and well-documented code that delivers value to TRM's customers and stakeholders.
• Continuously improve through feedback, pair programming, code reviews, and retros-bringing curiosity and coachability to every interaction.

What we're looking for:

• A Bachelor's or Master's degree in Computer Science or a closely related technical field (completed by Summer 2026).
• 1-2 software engineering internships, or equivalent experience through academic or personal projects.
• Familiarity with JavaScript/TypeScript and an interest in full-stack development (React, Node.js, Postgres).
• An eagerness to learn: you take feedback well and show curiosity about unfamiliar systems or tools.
• Strong communication skills-you keep your team updated, ask questions early, and can explain your thinking clearly.
• Demonstrated initiative-whether through a side project, internship, or campus involvement, you've shown you can take ownership and see something through.
• Excitement for TRM's mission to build a safer financial system for billions of people.

About the Team:

• Work Location Requirement: This role is based in our Los Angeles office. Employees in this position are expected to work from the office at least three (3) days per week to support in-person collaboration and team engagement.
• The team operates on a weekly sprint schedule. Individuals on the team are tasked to lead projects as technical anchors, and given a chance to grow and take ownership according to their level and goals. We work closely with our internal stakeholders to deliver impactful features to our internal customers and the company.
• The team's culture is built on psychological safety wherein team members build rapport and trust-based relationships with teammates, hold each other accountable and to a high bar, collaborate extensively, and have lots of fun along the way.
• The team's timezone is a mix of EST and PST with at least 6 hours of overlap with PST (8 am to 2 pm PST)
• On-Call: We have an on-call rotation that is a week long in duration approximately once every 4-6 weeks. On-call requests can be categorized into two large buckets; a) PagerDuty alerts that warrant immediate attention and b) customer support requests from specific Slack channels that an on-call engineer is responsible for triaging and answering.

Learn about TRM Speed in this position:

• Ruthless Prioritization & Adaptability: We adapt quickly when faced with new information. For example, an engineer may message the PM or EM to prioritize Task A vs. Task B in the middle of the sprint - we don't let inertia guide our decisions. Instead we focus on ruthless prioritization and pivot quickly as needed.
• Challenging Timelines (Execution Pressure): An engineer questions a teammate's proposed 3-week timeline, and constructively argues for condensing it to 2 weeks-backed by rationale, tradeoffs, and a plan to reduce scope or increase velocity. They show ownership of delivery speed and willingness to push for urgency.
• Time-Boxed Spiking (Rapid Learning & Decision-Making): An engineer proposes a 1-week spike with a clear time-box and success criteria to explore implementation options or validate feasibility through a proof of concept. They demonstrate speed not just in execution, but in de-risking decisions early.

The following represents the expected range of compensation for this role:

• Individual pay is determined by skills, qualifications, experience, and location. The compensation details listed in this posting reflect the US base salary only.
• The estimated base salary range for this role is $130,000 - $150,000.
• Additionally, this role may be eligible to participate in TRM's equity plan.
• Please note - we factor in the different costs for geographies outside the United States.

About TRM's Engineering Levels:
Engineer: Responsible for helping to define project milestones and executing small decisions independently with the appropriate tradeoffs between simplicity, readability, and performance. Provides mentorship to junior engineers, and enhances operational excellence through tech debt reduction and knowledge sharing.
Senior Engineer: Successfully designs and documents system improvements and features for an OKR/project from the ground up. Consistently delivers efficient and reusable systems, optimizes team throughput with appropriate tradeoffs, mentors team members, and enhances cross-team collaboration through documentation and knowledge sharing.
Staff Engineer: Drives scoping and execution of one or more OKRs/projects that impact multiple teams. Partners with stakeholders to set the team vision and technical roadmaps for one or more products. Is a role model and mentor to the entire engineering organization. Ensures system health and quality with operational reviews, testing strategies, and monitoring rigor.
Life at TRM
We are building a safer world. That promise shows up in how we work every day.
TRM moves quickly. We are a high velocity, high ownership team that expects clarity, follow-through, and impact. People who thrive here are energized by hard problems, experimentation, and continuous feedback. If something takes months elsewhere, it will ship here in days.
Our work sits at the intersection of AI, national security, and fighting crime. The problems are complex, the stakes are real, and the environment evolves quickly. The pace and intensity of the work reflect the importance of the mission. As a result, the way we operate requires a high level of ownership, adaptability, collaboration, and creative problem-solving.
At TRM, you should expect:

• Priorities and targets to change quickly as we experiment and iterate
• Work that often requires operating with a high degree of ambiguity
• A high level of personal ownership and accountability
• Close collaboration across teams and functions
• Frequent, high-touch communication
• Creative problem solving and out-of-the-box thinking
• A pace that rewards urgency, adaptability, and outcomes

This environment is energizing for people who enjoy building, solving hard problems, and making progress in situations that are not always fully defined. It also requires comfort navigating ambiguity, adjusting course as new information emerges, and maintaining focus and positivity in a fast-moving and intense environment.
We also recognize that this style of operating is not for everyone. If you are primarily optimizing for predictability or a consistently balanced workload, we encourage you to use the interview process to pressure test whether this environment is truly the right fit. We want teammates who thrive here, not just survive here.
At the same time, many people find this work deeply rewarding. If you are excited by meaningful problems, motivated by ambitious goals, and energized by working alongside mission-driven colleagues, there is a good chance you will find TRM to be an exceptional place to grow and contribute. Learn more: Interviewing at TRM: How We Hire and What Success Looks Like
AI Fluency at TRM
AI fluency is a baseline expectation at TRM.
We believe AI meaningfully changes how top performers operate. We expect every team member to use AI to accelerate and reimagine their craft, not just automate surface tasks.
At TRM, AI fluency means you are among the top 10 percent of operators in your function in how you apply AI to:

• Accelerate repeatable workflows
• Structure and solve problems
• Improve output quality
• Increase speed and leverage

You will be evaluated on applied AI fluency during the interview process.
Leadership Principles
We hire and grow against three leadership principles. They're the standards for how we operate, treat each other, and make decisions.

• Impact-Oriented Trailblazer: We put customers first and move with speed, focus, and adaptability. We treat every plan like an experiment - test, ship, measure, and iterate quickly.
• Master Craftsperson: We care deeply about our craft. We balance speed with high standards, own outcomes end‑to‑end, and invest in getting better everyday.
• Inspiring Colleague: We add clarity and energy, not noise. We bring humility, candor, and a one‑team mindset - giving and receiving feedback to make the team stronger.

Join our Mission
At TRM we care deeply about our craft. We are looking for individuals who want their work to matter, who experiment with speed and rigor, and who take pride in building a safer world for billions of people. If you're excited by TRM's mission but don't check every box, we encourage you to apply - we hire for slope, judgment, and the will to learn fast.
TRM is a Series C company with $220M in total funding, backed by Goldman Sachs, Bessemer, Y Combinator, Thoma Bravo, and others. Headquartered in San Francisco, TRM operates as a distributed-first company with hubs in Los Angeles, San Francisco, New York, Washington D.C., London, and Singapore.
Privacy Policy and Additional Information
By submitting your application, you agree to allow TRM Labs to process your personal information in accordance with our Privacy Policy.
We collect the information you provide (such as your resume, work history, and contact details) solely for the purpose of evaluating your candidacy for current and future roles at TRM.
Because our hiring cycles for certain positions may span 24 to 36 months, we retain your personal information for up to 36 months from the date of your application. After that period, your data is deleted unless a different retention period is required or permitted by law.
If you are located in the European Economic Area, the United Kingdom, or another jurisdiction with applicable data protection laws, you have the right to access, correct, or request deletion of your personal data at any time before that period ends. To exercise any of these rights, contact us at privacy@trmlabs.com.
To notify TRM Labs that you believe this job posting is non-compliant, please submit a report through this form. No response will be provided to inquiries unrelated to job posting compliance.
The use of AI tools of any kind (including but not limited to notetakers, interview assistants, and real-time coaching tools such as Otter.ai, Fireflies, Fathom, Cluey, or similar) during TRM interviews is not permitted without prior approval from TRM. TRM uses its own internal tools for note-taking to ensure a consistent and confidential experience for all candidates.
We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this form.
Recruitment agencies
TRM Labs does not accept unsolicited agency resumes. Please do not forward resumes to TRM employees. TRM Labs is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company without a signed agreement.
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