Member of Technical Staff Internships
Member of technical staff internships give university students, recent graduates, and early-career switchers hands-on project experience, mentorship from working engineers and senior practitioners, and, at many employers, a path toward a full-time offer. Openings are concentrated in {{top_industries_phrase}}, with Trajectory, GenMD, and Axiom Math among the employers posting roles now.
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As a Member of Technical Staff (Research) at Trajectory, you will design and build the post‑training stack that lets our customers’ models continually learn from real production workflows. You will own end‑to‑end experiments across data, training, and evaluation: shaping telemetry into learnable signals, training and serving custom LLMs and agents, and designing novel algorithms. You’ll work directly with the founders and design partners, make foundational technical and product decisions, and help define both the culture and architecture of a company whose core mission is to enable continually learning intelligence.
Required Qualifications
Experience training or serving large language models
Experience building RL environments or evaluation suites for LLMs
Proficiency in PyTorch, JAX, or similar ML frameworks
Strong experimental design skills
Master’s / research experience
Preferred
Background in pre- or post-training RL for LLMs
Experience with high-performance computing or large-scale clusters
Contributions to open-source ML research or infrastructure
Demonstrated technical creativity (research, OSS, side projects)
PhD (last year of PhD), working on AI / RL open source projects
About Trajectory
Trajectory is a research and product lab creating the platform for continual learning.
AI is the most capable software ever built, and the least able to learn. Every valuable correction and edit that happens in a product evaporates at the next session. A few teams have closed this gap by hand-coupling their models to their products: Composer, Claude Code, Windsurf SWE-1.
Trajectory is the first scalable approach for every company: our platform unlocks the signal already sitting in product use, so companies can continuously post-train large-scale agentic models that outperform the frontier. Working with leading AI companies, including Decagon, Clay, Harvey, Mercor, and Rogo.
Founded by researchers from Deepmind, OpenAI, Meta, Apple, Amazon, and Scale. $15M led by Conviction, with Fei-Fei Li, Jeff Dean, and founders of Notion, Braintrust, Modal, Hugging Face, and Dropbox.
Job Description
As a Member of Technical Staff (Research) at Trajectory, you will design and build the post‑training stack that lets our customers’ models continually learn from real production workflows. You will own end‑to‑end experiments across data, training, and evaluation: shaping telemetry into learnable signals, training and serving custom LLMs and agents, and designing novel algorithms. You’ll work directly with the founders and design partners, make foundational technical and product decisions, and help define both the culture and architecture of a company whose core mission is to enable continually learning intelligence.
Required Qualifications
Experience training or serving large language models
Experience building RL environments or evaluation suites for LLMs
Proficiency in PyTorch, JAX, or similar ML frameworks
Strong experimental design skills
Master’s / research experience
Preferred
Background in pre- or post-training RL for LLMs
Experience with high-performance computing or large-scale clusters
Contributions to open-source ML research or infrastructure
Demonstrated technical creativity (research, OSS, side projects)
PhD (last year of PhD), working on AI / RL open source projects
About Trajectory
Trajectory is a research and product lab creating the platform for continual learning.
AI is the most capable software ever built, and the least able to learn. Every valuable correction and edit that happens in a product evaporates at the next session. A few teams have closed this gap by hand-coupling their models to their products: Composer, Claude Code, Windsurf SWE-1.
Trajectory is the first scalable approach for every company: our platform unlocks the signal already sitting in product use, so companies can continuously post-train large-scale agentic models that outperform the frontier. Working with leading AI companies, including Decagon, Clay, Harvey, Mercor, and Rogo.
Founded by researchers from Deepmind, OpenAI, Meta, Apple, Amazon, and Scale. $15M led by Conviction, with Fei-Fei Li, Jeff Dean, and founders of Notion, Braintrust, Modal, Hugging Face, and Dropbox.
Member of Technical Staff Internship Market
Who's Hiring
Tips for Your Member of Technical Staff Internship Search
Apply months before the internship starts
Large employers open summer cohort applications the preceding fall, often in August or September, and close them well before spring. Smaller companies and co-op programs post closer to start dates, so roles appear year-round. Treat the fall semester as prime application season and check listings regularly rather than waiting for a single rush.
Build technical evidence before you apply
Intern hiring teams expect limited work history, so your projects carry the weight. Publish two or three complete technical projects with documented code, analysis outputs, or design files in a linked repository or portfolio. For member of technical staff candidates, something reviewers can click through and evaluate matters far more than a list of skills on a resume.
Work your campus network and apply directly at the same time
Campus career fairs surface structured programs tied to your university, and recruiters there often move faster for students they meet in person. Professors and career center staff frequently know which employers recruit from your school before roles post publicly. Applying directly to companies running smaller cohorts alongside campus activity widens the pool you reach without duplicating effort.
Practice your technical screen out loud before applying
Member of technical staff intern interviews typically involve a coding screen focused on data structures and algorithms, and interviewers weigh how you explain your thinking as much as whether you reach the right answer. Practice solving problems out loud, narrating each step, so the reasoning is clear under pressure. One strong practice session per day in the two weeks before interviews makes a measurable difference.
Member of Technical Staff Internships: Frequently Asked Questions
How do I get a member of technical staff internship?
Lead with coursework, personal projects, and a portfolio rather than work history, hiring teams expect limited experience at the intern level. For member of technical staff roles, a linked code repository or technical project writeup gives recruiters something concrete to assess. Combine direct applications with campus career fairs, where recruiters often move faster for students they meet in person.
Can a member of technical staff internship turn into a full-time job?
Many employers extend return offers to strong interns, but conversion is never guaranteed. What actually drives it for member of technical staff interns is performance on real deliverables, available headcount on the team, and how early the return-offer conversation happens. Treat the internship as an audition worth giving your best effort to, without counting on a specific outcome.
When should I apply for member of technical staff internships?
Earlier than most students expect. Large employers recruit summer interns the preceding fall, often opening applications in August and September. Smaller companies and co-op programs post closer to their actual start dates, so openings appear year-round. Checking listings regularly and applying as soon as a role opens gives you the strongest shot at structured cohort programs.
Are member of technical staff internships paid?
Most professional member of technical staff internships in the United States are paid. Compensation varies by company size, industry, and location, and listings show it where the employer chooses to disclose it. Unpaid arrangements are uncommon at the professional level but do exist at some nonprofits and research settings, so read each listing carefully.
What should a member of technical staff internship resume include?
Lead with projects, not work history. Include two or three complete, documented projects that name the tools and technologies you used and link to where the work lives, a code repository, a published analysis, or a design portfolio. Add relevant coursework, keep the whole document to one page, and put the strongest technical evidence at the top where reviewers look first.
What is a rotational engineer or new grad technical program internship?
Many large technology and engineering companies run structured rotational internship programs that place members of technical staff across two or three teams over a single summer or multi-term period. These programs are designed for people new to the field, offer built-in mentorship and cross-functional exposure, and recruit aggressively in the fall. They are competitive and fill in the first application wave, so identify the ones that fit your background and apply immediately when they open.
Can international students get member of technical staff internships?
Yes. F-1 students can intern through CPT while enrolled or through OPT work authorization after finishing a degree, and the employer does not have to file anything for either, so many companies are open to international interns. Confirm your eligibility and timing with your university's international student office before accepting an offer.
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