Modal Internship 2027–2028: Programs, Deadlines & How to Apply

Quick Facts

Last updated: November 2026

Modal Labs grew from $60 million to $300 million in annual recurring revenue in eight months, closed a $355 million Series C at a $4.65 billion valuation in May 2026, and still operates with roughly 100 employees. The Summer 2025 intern cohort numbered seven to eight engineers who shipped production infrastructure, including container failure alerts, async batch processing, and zero-overhead speculative decoding. Seven seats, $4.65 billion in valuation, and production-grade project scope make this one of the most competitive and consequential intern programs in AI infrastructure.

What Is a Modal Internship?

A Modal internship is a paid, on-site summer placement at a $4.65 billion serverless AI infrastructure company that lets developers deploy and scale AI workloads from zero to thousands of GPUs without managing servers, containers, or Kubernetes. Interns join a team of roughly 100 engineers, working alongside IOI medalists, the creator of Seaborn, and leaders from Spotify and Scale AI, to ship production code on Modal's custom-built runtime, scheduler, and filesystem. Past intern projects have included building container failure alert systems, implementing fault-tolerant async batch processors, and engineering zero host-overhead speculative decoding for GPU workloads. The program is deliberately small: seven to eight interns per cohort, each owning a real feature or system that reaches Modal's customers, which include biotech firms, hedge funds, and AI coding tool companies. Founded in 2021 by Erik Bernhardsson (ex-Spotify VP of Engineering, ex-Better.com CTO) and Akshat Bubna, Modal's culture is craft-focused and technically serious, with a pace that is fast but not frantic. At least one past intern continued working part-time during the school year, suggesting a conversion pathway that the company's hypergrowth makes increasingly attractive.

When Do Modal Internship Applications Open for 2027–2028?

Modal Labs has not published a confirmed Summer 2027 internship timeline, and as of October 1, 2026 the only intern listing on the Ashby board is a PhD-level ML Research Intern role (posted July 28, 2026); the engineering internship this page covers has not posted. The projection comes from industry patterns and past cohort timing: the Summer 2025 cohort of seven to eight interns worked approximately June through August, and the Summer 2023 cohort (when Modal had fewer than ten employees) followed a similar window. For Summer 2027, expect the listing to appear on Ashby between October and November 2026, with interviews running through February and offers landing by March. The critical detail: with only seven to eight seats per cohort, positions likely fill on a rolling basis once the listing goes live, and applying the day the posting drops is not paranoia but arithmetic.

How to read this page: our dates come from tracking previous recruiting cycles and daily posting data. Treat them as informed estimates based on historical patterns, not confirmed dates. The company's official careers page is always the most current source. If a role is posted there, go by that, even if this page suggests the window hasn't opened yet.

Why You Must Apply the Week Applications Open

Seven to eight seats. That is the entire Summer 2025 intern cohort at a company valued at $4.65 billion. There is no published acceptance rate, but the arithmetic is self-explanatory: with a team that includes IOI medalists and leaders from Spotify and Scale AI setting the hiring bar, and a platform visible enough in the AI infrastructure community to attract far more applicants than seats, the funnel is brutally selective. The listing will appear on Ashby between October and November 2026, and with rolling admissions likely, the first qualified applications get the first offers. Set an alert on jobs.ashbyhq.com/modal now. Before you apply, deploy something on Modal's free tier: an inference endpoint, a batch pipeline, or a GPU-accelerated computation. Interviewers will know whether you have used the product, and at a developer-tools company, product familiarity is not optional.

Which Modal Internship Programs Should You Target?

Modal runs a single summer engineering internship, but interns are placed into distinct project areas based on their skills and the team's current priorities. The Summer 2025 and 2023 cohorts reveal four clear tracks within that one program. Every track ships production code that reaches real customers.

See current openings on Modal's Ashby board. The specific intern tracks available for Summer 2027 will depend on the team's priorities at listing time, but the pattern is consistent: interns own a real system, not a side project.

What Are the Eligibility Requirements?

Modal's intern bar is set by the team you would join: roughly 100 engineers, including IOI medalists, the creator of Seaborn, and experienced leaders from Spotify and Scale AI. The explicit requirements are thin because the implicit bar is high:

• Degree: pursuing a BS, MS, or PhD in Computer Science, Systems Engineering, or a related field. Intern cohorts have included students from Purdue, MIT, and Stanford.

• Technical foundation: strong CS fundamentals (data structures, algorithms, operating systems). Python is the primary language; Rust and Go experience is a bonus. Systems knowledge, including Linux internals, cgroups, namespaces, and OCI containers, is a differentiator.

• Work style: comfort with ambiguity and early-stage environments. Ability to ship production code independently. Modal's culture is craft-focused and technically serious, not a hand-holding program.

• Visa: H-1B sponsorship confirmed for full-time roles. CPT-eligible international students are likely accepted for internships, but verify directly with Modal's recruiter.

How Competitive Is a Modal Internship?

Extremely competitive. The Summer 2025 cohort had seven to eight interns, and the team setting the hiring bar includes IOI medalists and infrastructure veterans. No acceptance rate is published, but with that few seats and Modal's visibility in the AI infrastructure community, the rate is likely in the low single digits. Candidates who stand out tend to have prior experience deploying on Modal (even a personal project), container or infrastructure side projects, open-source contributions, or competitive programming backgrounds. Reading Erik Bernhardsson's engineering blog before applying signals genuine interest in the company's technical philosophy.

What Skills Does Modal Look For, and How Do You Build Them?

Read across Modal's full-time SWE job descriptions and confirmed intern project descriptions, and the pattern is infrastructure-first. Python appears everywhere, but the differentiating skills are systems-level: Linux internals, container runtimes, GPU orchestration, and distributed task scheduling. Modal deliberately does not use Kubernetes, and interviewers will notice if your mental model defaults to it. The soft-skill bar is equally specific: customer empathy for a developer-tools company, comfort with ambiguity at a 100-person startup, and the ability to ship production code independently. Behavioral rounds probe for owned projects and early-stage resilience, not polished corporate stories.

How Is Demand for Infrastructure Engineering Interns Moving Right Now?

Build These Skills Before You Apply

Every skill in that chart maps to a remote Externship where you can build a finished project before Modal's listing goes live.

The Wayfair project is agent-engineering work that yields the build-and-ship evidence Modal's infrastructure-focused interviews probe for, and the TruBridge project delivers the data-analysis and statistical-reasoning story a systems round wants.

What Is the Modal Application and Interview Process Like?

Modal's intern interview process is a condensed version of its full-time loop, which techinterview.org rates at 8 out of 10 difficulty, comparable to Stripe and HashiCorp:

1. Monitor Modal's Ashby board weekly. As of October 1, 2026 the only intern listing is a PhD-level ML Research Intern; the engineering internship has not posted. When the posting appears, submit immediately. With seven to eight seats and likely rolling admissions, speed matters more than polish.

2. Recruiter screen (30 minutes). Background, motivation, and team preference discussion. Modal's culture values customer empathy and comfort with ambiguity, so frame your experience around owned projects and shipping, not managed tasks.

3. Technical interview (one to two rounds). Coding problems in Python, Rust, or Go with a focus on systems fundamentals. Expect medium-hard difficulty covering algorithms and applied systems. Avoid generic Kubernetes answers: Modal deliberately does not use Kubernetes and built its own runtime, scheduler, and filesystem from scratch.

4. Behavioral and culture fit. Probes for owned projects, early-stage comfort, customer empathy, and technical communication. Modal's team is small and craft-focused, so demonstrating independent shipping ability matters more than team-management stories.

5. Offer. Decision typically within one to two weeks of the final interview. Modal's rapid growth creates strong retention incentive.

The single highest-leverage preparation move is deploying a real project on Modal's free tier before your first interview. Use Modal to run an inference endpoint, build a batch processing pipeline, or spin up a GPU-accelerated computation. Interviewers at a developer-tools company will know whether you have used the product, and product familiarity compresses the conversation from 'what does Modal do' to 'here is what I would improve.' Beyond that, study container internals (cgroups, namespaces, OCI runtimes), read Erik Bernhardsson's blog on Modal's architecture, and prepare two to three stories about systems you built and shipped independently.

What Students on Reddit Say

Direct Reddit threads about Modal Labs internship experiences are scarce, which reflects the company's size and private-company status. Three tangentially relevant threads, all paraphrased.

How Do You Stand Out When Seven Seats Exist?

Three moves, all before the listing drops. First, build and deploy a project on Modal's free tier: an inference endpoint, a batch pipeline, or a GPU-accelerated computation. At a developer-tools company, product familiarity is not a nice-to-have but a filter, and interviewers will know within two minutes whether you have used the platform. Second, study Modal's custom infrastructure stack: the company deliberately does not use Kubernetes, and built its own runtime, scheduler, and filesystem from scratch. Defaulting to Kubernetes answers in the interview signals that you have not done the reading. Erik Bernhardsson's engineering blog and Rachel Park's intern blog post are the two primary sources. Third, prepare systems-level depth: Linux internals (cgroups, namespaces, OCI containers), container runtimes, and GPU orchestration concepts separate Modal candidates from the general applicant pool. The team includes IOI medalists, so competitive-programming fluency is table stakes, not a differentiator. What differentiates is shipping: a finished project deployed on Modal, open-source infrastructure contributions, or a container-systems side project that demonstrates you can own a feature end to end.

What Other Companies Should You Consider?

Modal operates in the serverless AI infrastructure space. If you are building a list of AI-company internships, these are the natural neighbors:

For the wider field, see our data analytics internships summer 2027 guide.

Our tech internships summer 2027 guide maps the whole landscape, timeline by timeline.

FAQ

Does Modal Labs offer internships?

Yes. Modal Labs runs a summer engineering internship program. The Summer 2025 cohort had seven to eight interns across the NYC and SF offices, working on production infrastructure projects including container systems, async processing, and GPU optimization.

How much do Modal interns get paid?

Modal Labs has not publicly disclosed engineering intern compensation; the only published figure is $15K per month on the PhD-level ML Research Intern listing. Based on comparable AI infrastructure startups and Modal's competitive full-time engineering compensation (software engineers earn $300K to $470K total comp), engineering intern pay is estimated at $60 to $85 per hour. This estimate is not confirmed.

How hard is it to get a Modal Labs internship?

Very competitive. The Summer 2025 cohort had only seven to eight interns, and the team includes IOI medalists and infrastructure leaders from Spotify and Scale AI. No acceptance rate is published, but the rate is likely in the low single digits. Strong systems programming skills, container or GPU knowledge, and prior experience using Modal's platform give candidates an edge.

What is the Modal internship interview like?

The intern interview likely consists of a recruiter screen (30 minutes), one to two technical coding rounds in Python, Rust, or Go focusing on systems fundamentals, and a behavioral round. The full-time process is rated 8 out of 10 difficulty, comparable to Stripe and HashiCorp. Modal does not use Kubernetes, so avoid generic Kubernetes answers.

Can international students intern at Modal Labs?

Modal Labs sponsors H-1B visas for full-time roles, which suggests they can support CPT-eligible international students for internships. However, this is not explicitly confirmed for intern positions. Verify directly with Modal's recruiter.

What projects do Modal interns work on?

Interns work on substantial production engineering. Summer 2025 projects included container failure alerts, async batch processing, fault-tolerant function execution, and zero host-overhead speculative decoding. In Summer 2023, intern Rachel Park built a Discord bot with Meta's MusicGen, self-serve subscription infrastructure, custom domains, and organized a 100-plus person community hackathon.

Where are Modal internships located?

Modal Labs has offices in New York City (HQ at 233 Spring St) and San Francisco (375 Alabama St). Interns have been placed in both locations. Internships appear to be on-site only. The company also has a Stockholm office, but no intern placements have been confirmed there.

Seven seats, production scope, and a $4.65 billion company still small enough to know every intern by name. Spend the build window shipping proof: a remote Externship turns 'interested in infrastructure' into a finished project you can point at the day the listing drops.