Senior Full-Stack Product Engineer

Arva AI Inc.; London; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Competitive salary and equity package

4 weeks of remote work per year

Regular team off-sites

Job summary

A cutting-edge AI startup in London is seeking a Full-Stack Product Engineer. You will build and iterate product features across front-end and back-end, improve systems using feedback, and apply the latest AI developments. Ideal candidates are proficient in TypeScript, React, and NodeJS, with experience in AI/ML and strong communication skills. This role offers significant ownership, competitive salary, and remote working opportunities.

Qualifications

• 1+ years in a full stack/product engineering role.
• Experience using AI/ML and computer vision.
• Hands-on experience with prompt engineering and model training.

Responsibilities

• Build full-stack product features across front-end and back-end.
• Create systems that improve based on feedback.
• Use latest AI developments to enhance product features.
• Devops: Ensure that we maintain fast deployments and good CI/CD practices to maximise development velocity.
• Prompt Engineering: Develop and test prompts to optimise model performance and deliver high-quality outputs.
• Model Fine-Tuning: Adapt and fine-tune large language models and vision models for specific use cases.
• Custom Model Training: Train and deploy bespoke AI models tailored to solve unique compliance challenges.
• Collaboration: Work closely with the engineering and product teams to translate customer needs into actionable AI solutions.
• Iterate: Continuously iterate on our AI systems to improve performance, reduce errors, and deliver value to customers.

Skills

Proficient in TypeScript

React

NodeJS

Prompt Engineering

Fine-tuning models

Computer Vision

Excellent communication skills

Problem-solving mindset

Tools

CI/CD

Job description

Arva AI is revolutionising financial crime intelligence with our cutting-edge AI Agents. By automating manual human review tasks, we enhance operational efficiency and help financial service providers onboard businesses more quickly while cutting operational costs by 80%.

About the Role

• Build and iterat e on full-stack product features across front-end, back-end, AI, devops and MLops.
• Create systems that can improve over time based on feedback from humans in the loop, such as prompt optimisation and fine-tuning.
• Explore applications of the latest developments of AI to enhance our product features, explainability, speed and accuracy.

What You’ll Do

• Front-end: Build interfaces that clearly explain the decisions made by our system without overloading the user.
• Back-end: Build systems that can scale to large volumes of requests without sacrificing reliability.
• AI: Use the latest in LLMs, agents and computer vision to build systems that are faster, more thorough and more accurate than humans.
• Devops: Ensure that we maintain fast deployments and good CI/CD practices to maximise development velocity.
• Prompt Engineering: Develop and test prompts to optimise model performance and deliver high-quality outputs.
• Model Fine-Tuning: Adapt and fine-tune large language models and vision models for specific use cases.
• Custom Model Training: Train and deploy bespoke AI models tailored to solve unique compliance challenges.
• Collaboration: Work closely with the engineering and product teams to translate customer needs into actionable AI solutions.
• Iterate: Continuously iterate on our AI systems to improve performance, reduce errors, and deliver value to customers.

Our Culture

1. Deliver Value Fast – Speed + ownership is our superpower. We value action over perfection. We\'re not afraid to get our hands dirty, experiment, and iterate quickly to achieve our goals, and completely own the outcome.
2. Customer First, Team Second, Self Last – Our priority is creating value for our customers. We then focus on building a supportive, growth-oriented team environment, putting individual needs last to ensure collective success.
3. Transparency – We believe in open communication and full visibility across teams and roles. Decisions, successes, and failures are shared openly to foster trust and collaboration.

What We’re Looking For

• Experience: 1+ years in a full stack / product engineering role, as well as experience using AI/ML and computer vision.
• Technical Expertise: Proficient in TypeScript, React and NodeJS, and with good product intuition.
• AI Skills: Hands-on experience with prompt engineering, fine-tuning pre-trained models, and training custom models, including vision models.
• Product Mindset: Strong understanding of how AI can solve real-world problems, with a focus on customer needs.
• Interests: Ability to stay updated with the latest advancements in AI and apply them effectively.
• Collaboration: Excellent communication skills to work across teams and explain complex AI concepts to non-technical stakeholders.
• Ownership: A proactive, problem-solving mindset with the ability to take full responsibility for projects and outcomes.
• Growth-Oriented: Excited to learn new skills, tackle challenges, and adapt as the company scales.

Why Join Us?

• Be part of an early-stage startup with significant ownership and influence over the AI strategy.
• Work on cutting-edge AI technologies that transform how businesses operate.
• Collaborate with a passionate, mission-driven team dedicated to innovation.
• Work from anywhere in the world for 4 weeks a year, in addition to regular team off-sites.
• Competitive salary and equity package, with bi-annual salary review and yearly performance based equity refresh.

Ready to Build the Future of AI Powered Anti- Financial Crime?

If you’re excited to shape the future of compliance with state-of-the-art AI solutions, we’d love to hear from you. Apply now to become an Arvanaut as our Full-Stack Product Engineer.

About the interview

• Intro/screening call to sell you on the vision
• Take-home task to show off your skills
• Debrief call to dive into your submission
• In-person hangout to meet the team

About Arva AI

Arva AI is revolutionising financial crime intelligence with our cutting-edge AI Agents. By automating manual human review tasks, we enhance operational efficiency and help financial institutions handle AML, KYB and KYC reviews, cutting costs by 80%.

Arva AI is trusted by fast-growing fintechs like Keep to reduce friction, improve compliance outcomes, and unlock scale