AI Product & Research Engineer

Sorry, this job was removed at 02:21 p.m. (CST) on Tuesday, Feb 17, 2026
Be an Early Applicant
London, England, GBR
In-Office
Software
The Role
We are a leading trading platform that is ambitiously expanding to the four corners of the globe. Our top-rated products have won prestigious industry awards for their cutting-edge technology and seamless client experience. We deliver only the best, so we are always in search of the best people to join our ever-growing talented team.

We’re spinning up a brand-new AI department and need a first-on-the-ground engineer who can turn wild LLM ideas into working demos overnight, teach everyone around you why automation matters, and have fun doing it.
If you can ship Python or TypeScript prototypes, keep reading.

Responsibilities:

  • Prompt Engineering & Orchestration: Craft, iterate, and optimize prompts for APIs (OpenAI, Cohere, Anthropic). Build multi-step “chains” using LangChain, LlamaIndex, or custom controllers. Develop and maintain AI microservices using Docker, Kubernetes, and FastAPI, ensuring smooth model serving and error handling;
  • Vector Search & Retrieval: Implement retrieval-augmented workflows: ingest documents, index embeddings (Pinecone, FAISS, Weaviate), and build similarity search features.
  • Rapid Prototyping: Create interactive AI demos and proofs-of-concept with Streamlit, Gradio, or Next.js for stakeholder feedback;
  • MLOps & Deployment: Implement CI/CD pipelines (e.g., GitLab Actions, Apache Airflow), experiment tracking (MLflow), and model monitoring for reliable production workflows;
  • Cross-Functional Collaboration: Participate in code reviews, architectural discussions, and sprint planning to deliver features end-to-end.

Requirements:

  • Master’s degree in AI and/or Computer Science;
  • Hands-on experience integrating LLM APIs (e.g. OpenAI, Hugging Face Inference);
  • Practical experience fine-tuning LLMs via OpenAI, HuggingFace or similar APIs;
  • Strong proficiency in Python;
  • Deep expertise in prompt engineering and tooling like LangChain or LlamaIndex;
  • Proficiency with vector databases (Pinecone, FAISS, Weaviate) and document embedding pipelines;
  • Proven rapid-prototyping skills using Streamlit or equivalent frameworks for UI demos.
  • Familiarity with containerization (Docker) and at least one orchestration/deployment platform;
  • Excellent communication and ability to frame AI solutions in business terms.

Nice-to-have:

  • Familiarity with database systems (PostgreSQL, MongoDB) and caching layers (Redis);
  • Open-source contributions or published AI demos;
  • Understanding of cost-optimization, monitoring for LLM usage and model-API trade-offs;
  • Familiarity with prompt engineering best practices and “vibe-coding” tools (e.g., GitHub Copilot, Cursor IDE);
  • Willingness to travel occasionally for team offsites or workshops.

What you will get in return:

  • Competitive Salary: We believe great work deserves great pay! Your skills and talents will be rewarded with a salary that makes you feel valued and motivated.
  •  Work-Life Harmony: Join a company that genuinely cares about you - because your life outside of work matters just as much as your time on the clock. #LI-Hybrid
  • Annual Performance Bonus: Your hard work doesn’t go unnoticed! Celebrate your achievements with a well-deserved annual bonus tied to your performance.
  • Generous Time Off: Need a breather? Our annual leave policy lets you recharge and enjoy life outside of work without a worry.
  • Employee Referral Program: Love working here? Share the love! Bring your talented friends on board and get rewarded for growing our awesome team.
  • Comprehensive Health & Pension Benefits: From medical insurance to pension plans, we’ve got your back. Plus, location-specific benefits and perks!
  • Workation Wonderland: Live your digital nomad dreams with 30 extra days to work remotely from anywhere in the world (some restrictions apply). Adventure awaits!
  • Volunteer Days: Make a difference! Take two additional paid days each year to support causes you care about and give back to the community.

Be a key player at the forefront of the digital assets movement, propelling your career to new heights! Join a dynamic and rapidly expanding company that values and rewards talent, initiative, and creativity. Work alongside one of the most brilliant teams in the industry.

Similar Jobs

Klaviyo Logo Klaviyo

Enterprise Account Executive

Consumer Web • eCommerce • Marketing Tech • Retail • Software • Analytics • Generative AI
Easy Apply
Hybrid
London, Greater London, England, GBR
2400 Employees
98K-147K Annually

Wise Logo Wise

Engineering Manager

Fintech • Mobile • Payments • Software • Financial Services
Hybrid
London, Greater London, England, GBR
8000 Employees
100K-125K Annually

Motorola Solutions Logo Motorola Solutions

Junior Software Engineer

Artificial Intelligence • Hardware • Information Technology • Security • Software • Cybersecurity • Big Data Analytics
Hybrid
Uxbridge, Greater London, England, GBR
23000 Employees

Morningstar Logo Morningstar

Consultant

Artificial Intelligence • Big Data • Enterprise Web • Fintech • Software • Financial Services
Hybrid
London, Greater London, England, GBR
11500 Employees
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
18 Employees

What We Do

Capital provides software that enables founders to raise, hold, spend, and send funds all in one place. Capital has evolved its flagship fundraising tool (formerly known as Party Round) to provide founders with banking solutions that streamline their startups.

Similar Companies Hiring

Milestone Systems Thumbnail
Software • Security • Other • Big Data Analytics • Artificial Intelligence • Analytics
Lake Oswego, OR
1500 Employees
Fairly Even Thumbnail
Software • Sales • Robotics • Other • Hospitality • Hardware
New York, NY
Kepler  Thumbnail
Fintech • Software
New York, New York
6 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account