hopper
Senior Backend Engineer, MCP, RAG and Fine-Tuning (100% Remote)
At a Glance
- Location
- Washington D.C., United States
- Work Regime
- remote
- Employment
- FULL_TIME
- Compensation
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- Department
- Hopper
- Posted
- 2026-03-16
Key Requirements
Required Skills
Domain Knowledge
- E-commerce
- Engineering
- Insurance
- Medical
Benefits & Perks
uity packages. Unlimited PTO. Carrot Cash travel stipend.
Compensation & Benefits
Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages.
Unlimited PTO.
Carrot Cash travel stipend.
Access to co-working space on demand through FlexDesk AND Work-from-home stipend.
Please ask us about our very generous parental leave, much above industry standards!.
Entrepreneurial culture where pushing limits and taking risks is everyday business.
Responsibilities
Did you know Hopper's technology powers some of the largest travel portals in the world?
Our Hopper Technology Solutions (HTS) platform drives travel purchases for major global brands — from banks to airlines to fintech leaders.
This platform is essentially a configurable, multi-tenant travel commerce engine, enabling partners to launch world-class hotel and travel booking experiences faster, with less custom engineering.
We’re looking for a senior software engineer who has adopted the best practices in terms of AI-assisted coding.
You are not using AI to auto-complete your code; you are using multiple agents to autonomously deliver features at a speed that was impossible a few months ago.
You understand well the strengths and weaknesses of LLMs, and you know how to build a feedback loop and guardrails to get the best out of them.
About the Company
At Hopper, we are on a mission to become the leading travel platform globally – powering Hopper’s mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions – helping people travel better and save more on their trips.
The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. he Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers – with 70% of its users being Gen Z and millennials.
While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we’ve grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world’s largest brands.
Through HTS, our B2B division, the company supercharges its partners’ direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more.
Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS’ channels every year.