Internship

Cohort 0

Posted on 9/5/2026

Replit

Replit

501-1,000 employees

Cloud-based browser IDE with real-time collaboration

No salary listed

Foster City, CA, USA

Hybrid

Hybrid work in Foster City is required.

Bachelor's, Master's, PhD

Category
Software Engineering (1)
Required Skills
Quantitative Research
Machine Learning

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Requirements
  • Currently pursuing a Bachelor's, Master's, or PhD in Mathematics, Computer Science, Computer Engineering, Statistics, Physics, or a related quantitative field.
  • Have at least one semester of schooling remaining after the internship.
  • Demonstrate excellence in competitive mathematics such as the International Mathematical Olympiad or International Olympiad in Informatics, quantitative research, or advanced coursework.
  • Have genuine curiosity about artificial intelligence, agent systems, company building, or developer tooling.
  • Demonstrate strong first-principles thinking and the ability to reason about complex problems rigorously.
  • Have a strong grasp of the underlying mathematics behind machine learning, optimization, or systems.
  • Be capable of working independently while collaborating with cross-functional teams.
  • Be able to explain complex quantitative concepts to technical and non-technical audiences.
  • Demonstrate genuine excitement for difficult problems and the drive to iterate quickly.
Responsibilities
  • Contribute to real engineering problems in AI-powered software creation.
  • Collaborate with engineers, designers, and product managers on infrastructure that powers Replit's platform.
  • Prototype novel approaches to problems in AI, systems, or tooling where mathematical rigor is the differentiator.
  • Ship work that impacts developers globally.
Desired Qualifications
  • Be extremely enthusiastic about Replit and the future of AI-native software creation.
  • Show what you have built on the Replit platform.

Replit is a cloud-based platform for software development and deployment that lets users write, run, and share code directly in a web browser, using an online editor and IDE with real-time collaboration and project management. It runs code in the browser or the cloud and provides tools for writing, executing, and debugging, along with AI-powered coding assistance across many programming languages. Everything operates in the browser with built-in collaboration and learning features, reducing local setup and enabling teams and learners to work together. Its goal is to make coding and deploying software easier and more accessible for students, freelancers, and enterprises through a shared browser-based platform.

Company Size

501-1,000

Company Stage

Series D

Total Funding

$872.2M

Headquarters

San Francisco, California

Founded

2016

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Simplify Jobs

Simplify's Take

What believers are saying

  • OpenAI launched Replit Free Mode on August 19, 2026, widening usage without extra spend.
  • Visa invested in March 2026, signaling payments and agent-commerce expansion inside Replit.
  • Semgrep, Hexaware, and other partners deepen enterprise security and deployment credibility in 2026.

What critics are saying

  • Apple blocked Replit updates in March 2026; platform distribution remains hostage to Cupertino.
  • AI-generated apps expose secrets and vulnerabilities; Replit must prevent breaches before enterprise trust erodes.
  • Cursor, Lovable, and OpenAI intensify pricing pressure; a growth stumble breaks the $9B story.

What makes Replit unique

  • Replit Agent turns plain English into deployed apps inside the browser.
  • Security Center 2.0 and Security Agent bake remediation into AI coding workflows.
  • Fortune 500 teams and single-tenant environments make Replit enterprise-ready, not just a toy.

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Benefits

Competitive salary & equity

Your choice of new equipment & software

Health, dental, & vision insurance

Autonomy at work

Flexible work hours

Learning & development stipend

Monthly health & wellness stipend

Generous parental leave

Unlimited PTO (2 weeks minimum required)

401k matching

Commuter benefits

Expensed lunch

Yearly off-sites

Growth & Insights and Company News

Headcount

6 month growth

-4%

1 year growth

-3%

2 year growth

-15%
TechCrunch
Aug 24th, 2026
Replit CEO to discuss coding's AI revolution at TechCrunch Disrupt 2026

Amjad Masad, CEO and co-founder of Replit, will speak at TechCrunch Disrupt 2026 in San Francisco from 13–15 October. He will discuss the future of programming and the implications of AI-enabled development for both novice and professional coders. Replit has experienced explosive growth, with its current run-rate tracking toward significant expansion compared with just $2.8 million in reported revenue in 2024. Investors assigned the company a higher valuation earlier this year, six months after it received a $3 billion valuation. The session will explore how Replit helps users move beyond prototyping to fully developing their ideas. Masad's talk will address entrepreneurship and programming in the AI era.

Fortune
Aug 19th, 2026
Replit launches Free Mode powered by OpenAI's GPT-5.6 Luna after 80% price cut

Replit has launched Free Mode, a new feature powered by OpenAI's GPT-5.6 Luna model, following an 80% price cut on the model. The feature is available to subscribers paying $20 monthly for Core tier or $100 for Pro, allowing users to perform simpler tasks without depleting their AI token budgets. Free Mode automatically switches to more sophisticated models when needed, then reverts to Luna. The launch reflects broader industry trends of reducing AI costs as enterprises scrutinise return on investment and face competition from cheaper Chinese models. Replit president Michele Catasta said the partnership with OpenAI will yield additional joint product launches. OpenAI's Thibault Sottiaux noted the price reductions stem from operational efficiencies rather than increased computing capacity. Both companies aim to make powerful AI models accessible to users without technical backgrounds.

Associated Press
Aug 11th, 2026
Semgrep and Replit deepen partnership to secure AI-generated code at scale

Semgrep has expanded its partnership with Replit to embed real-time security analysis into AI-native development workflows. The code security company has integrated Semgrep Guardian's secrets and credentials detection directly into Replit's newly launched Security Center. The collaboration addresses security challenges posed by AI-generated code, which can create and propagate vulnerabilities across multiple files in seconds. Traditional security reviews struggle to keep pace with AI agents that can scaffold complete applications in minutes. The integration provides inline security scanning, real-time vulnerability detection, and in-workflow remediation guidance. It leverages Replit Agent's LLM reasoning to filter out up to 93.3% of false positives from static analysis results. The expanded integration is now available to all Replit Security Center users with no additional setup required. Companies including Snowflake, Figma, Lyft, and Dropbox currently use Semgrep's security platform.

Analytics India Magazine
Aug 4th, 2026
AIM — India's Leading AI & Data Science Media Platform

India's Leading AI & Data Science Media Platform

TalkMarkets
Aug 3rd, 2026
Replit targets $1B revenue by 2026 after AI pivot drives $9B valuation

Replit raised $400 million at a $9 billion valuation early this year, targeting $1 billion in annual recurring revenue by end-2026. The company now serves over 50 million users, including teams at 85% of Fortune 500 companies. Founded in 2016, Replit initially offered browser-based coding tools. Its AI pivot transformed it into a platform enabling anyone to build software through natural language descriptions. Annual revenue surged from $2.8 million in 2024 to $240-300 million by end-2025 following launch of AI agent capabilities. The company has raised $922 million across nine rounds from investors including Andreessen Horowitz, Coatue, Google's AI Futures Fund, and Qatar Investment Authority. It reports net retention rates as high as 300% and over 500,000 professional business customers. The analysis suggests Replit could expand beyond software creation into entrepreneurship development, combining technical tools with business methodology.