About the job
About Junior
At Junior, we are at the forefront of developing innovative LLM-powered tools designed to enhance the investment research experience for private market investors. Our esteemed clientele includes some of the world's leading private equity and consulting firms, responsible for managing billions in investments annually. As a profitable and bootstrapped company, we boast a dynamic team of 17 members operating out of London and New York City.
Discover more about our mission and values here.
Role Description
As our inaugural NLP/ML hire, you will have the exceptional chance to:
- Transform product and business requirements into applied ML/NLP solutions, generating innovative research synthesis concepts and validating their business impact through rapid prototyping.
- Design and enhance retrieval, search, and ranking algorithms by integrating semantic embeddings, behavioral signals, and structured database queries, while also creating custom reranking models.
- Fine-tune SLMs/LLMs for tasks requiring high accuracy and low latency such as classification, query rewriting, summarization, and personalization.
- Utilize advanced alignment and reliability methodologies (e.g., DPO, fine-tuning strategies, evaluation-driven iteration) to elevate user experience and trust.
- Experiment with summarization and synthesis techniques to convert extensive sets of unstructured interview notes into actionable insights.
- Engage in product decisions, direction, and prioritization.
- Influence our engineering culture.
With over 20 enterprise clients already onboard and tens of thousands of interactions on our platform, there is ample opportunity for data enhancement and innovation.
About You
We seek product-oriented ML engineers who:
- Are based in NYC.
- Possess a solid background as an NLP/ML researcher with expertise in RAG, LLMs, and Generative AI pipelines.
- Have a proven track record in building production-grade ML systems, including search, information retrieval, and structured outputs.
- Exhibit excellent communication skills and are eager for a client-facing role.

