AI Product Focused Senior Fullstack Rails Engineer (Boston)
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Job Location:
Boston, NH - USA
Monthly Salary:
Not Disclosed
Posted on:
30+ days ago
Vacancies:
1 Vacancy
Department:
Job Summary
About Yuma AI:
Yuma is building a next-generation orchestration platform that deploys autonomous AI agents dedicated to customer support in e-commerce.
We already support 150 paying merchants and help them automate up to 80% of their customer tickets freeing human agents for higher-value conversations.
Founded by Guillaume Luccisano (3rd-time YC founder) at the end of 2022 Yuma is one of the leaders in the AI Support Automation space with 10 consecutive months of double-digit growth.
We are now a team of 25 passionate and ambitious people based between Paris Barcelona and Boston and have grown revenue 5x in 2025. We aim to repeat this trajectory in 2026. The scale-up phase is fully underway.
Role Overview
We remain a small team of 5 engineers but we are intense and we move very quickly! Fast iteration is the past 2 years since Yumas founding weve built a lot but there is still much more to do! We operate at startup speed and handle everything: product iterations A/B testing LLM research AI Agents pipeline new feature development performance optimizations and more. We are intensely focused on delivering value to our users and on product excellence. That is the only thing that matters.
Our backend is a standard Ruby on Rails API powered by PostgreSQL Redis and Sidekiq. Our frontend uses and React. We already handle a significant load ingesting and processing millions of support tickets per month and millions of e-commerce data points per day.
We are definitely not a 9-to-5 team and we are heavily committed to delivering excellence throughout our craft.
The ideal You:
You have led and built multiple large Rails applications and you always strive for excellence. You are pragmatic making the right trade-offs that favor speed of iteration while maintaining high product quality. You are driven by delivering the best experience and value to your users. You might have a preference for working on backend projects but you arent afraid of frontend work. Rails has no secrets for you.
Recent experience playing with LLMs is now mandatory and you have already adopted AI in your day-to-day tasks. Building with LLMs and managing non-deterministic output is not scary to you.
If you are relentless deeply caring about delivering value & ownership and looking to join an early hard-working team we want you . We are seeking someone who is looking to embrace a new challenge and commit to it 100%.
Your diploma doesnt matter to us; we only care about your skills your sense of ownership and drive.
The Alternative You:
If youre still junior but the description above sounds like the person you aim to become in the next 3 years dont be shy: theres always space for raw talent at Yuma.
OUR CULTURE
Please if you are considering applying first read our culture page: Experience:
Senior IC
Key Skills
- APQP
- Six Sigma
- GD&T
- Root cause Analysis
- CAD
- Project Leadership
- SolidWorks
- Mechanical Engineering
- Quality Management
- Product Development
- Catia
- Manufacturing
About Company
Yuma is leveraging Generative AI to automate customer support. We help large Shopify businesses automating more than 40% of their support tickets.
