We're building cutting-edge LLM-powered tools that supercharge investment research for the world's most demanding deal teams. Our clients include several of the top 10 global private equity firms, Big 4 professional services firms, and leading consulting practices: organisations responsible for deploying billions of dollars annually.
We're a profitable, bootstrapped company with a growing team of ~28 people based in London and New York. We 10x'd our revenue in 2025 and are on track to grow 2-3x again this year. Junior saves clients an average of 10 hours per week, and we're expanding fast into new verticals including investment banking, hedge funds, and research firms.
💡 Role DescriptionAs a Summer Engineering Intern, you'll be embedded directly in our engineering team and own a meaningful project end-to-end. You'll ship real code, collaborate with full-time engineers, and present your work to the team at the end of the summer. This is not a passive learning experience — we expect you to contribute from day one.
🔧 What You'll Work OnBuilding AI-powered features using LLMs to process and structure unstructured research data
Contributing to our Next.js / TypeScript frontend for client-facing products
Working on data pipelines that turn raw investment research into structured knowledge
Currently pursuing a degree in Computer Science, Software Engineering, or a related field
Comfortable working in TypeScript / JavaScript — Next.js experience is a plus
Curious about AI and LLM-powered products
Strong communicator who can work closely with a small, fast-moving team
Previous internship or co-op experience is a bonus, not a requirement
$40/hr compensation
Free daily breakfast/lunch — we have an in-office cook
MacBook for the duration of the internship
Dedicated engineering mentor
Real ownership — your code ships to production
Final project presentation to the full team
Consideration for a return offer based on performance
We welcome applicants who are authorized to work in the US, including:
US citizens and permanent residents
F-1 students on CPT or OPT
Canadian citizens (TN visa)
Irish citizens (J-1 intern visa)
If you're excited about the opportunity to drive innovation at Junior, we'd love to hear from you! We can't wait to meet you! 🙌
Top Skills
What We Do
Junior leverages the power of generative AI to help deal teams and their advisors collaborate more effectively, uncover deeper insights, and accelerate their path to output. Our platform is purpose-built for the diligence process, with custom workflows that streamline how teams extract, structure, and analyze information. We deliver: • Best-in-class transcription with structured extraction of expert call insights • Instant key takeaways automatically generated after each call • Intelligent search across transcripts to pinpoint relevant insights fast • Quantitative tracking to monitor findings across interviews • Custom GPT-based synthesis that lets you query and summarize expert input at scale By integrating seamlessly into your workflow, Junior transforms raw information into actionable intelligence - quickly, accurately, and securely.
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