Senior Software Engineer, Backend
Content + Source + Freshness • 14 Feb 2026 • 95% confidence
Offer value
High score for the role, reflecting technical responsibility and opportunity for significant contributions to product architecture.
- Influence product architecture and development
- Engage in tackling impactful engineering challenges
- Possibility for future leadership roles
Pros
- Opportunity to influence backend architecture of crucial products
- Exposed to innovative technologies and high-impact projects
- Potential for leadership roles in future projects
Cons
- Demands high levels of accountability and ownership
- Fast-paced environment may result in work overload
- Requires versatile skills across both frontend and backend
Who it's for
Mid to Senior Level • Onsite or hybrid
Good fit
- Experienced backend developers in fintech
- Engineers eager to work on critical system architectures
- Professionals seeking roles with high levels of autonomy
Not recommended for
- Entry-level candidates
- Individuals preferring low-responsibility jobs
- Those uncomfortable with collaborative excitement
Motivation fit
Key skills
About the job
Our mission
The trucking and logistics industry provides the backbone of the economy. But the payments infrastructure on which it runs is broken. For the hard-working men and women of this sector, the existing suite of payment tools is outdated, difficult to use, prone to fraud, and saddled with shady fee structures. The incumbent players in this space often overlook the economic and practical needs of this user base.
We're changing that. AtoB is building Stripe for Transportation — modernizing the payments infrastructure for trucking and logistics. Supply chains rely on the timely movement of capital to function efficiently. Our end game is a world in which that capital movement occurs fairly, smoothly, and without delay. As we pursue that end game, we aim to center our customers in every way — offering them world-class customer experience and building products that work with and around the unique constraints of their daily lives. We build for fleet managers in the office and drivers on the road. We strive for products that are efficient, satisfying, and useful. Our customers enable our modern economy — they deserve it.
Our history and background
Our founding team has backgrounds in payments, working on autonomous vehicles at Cruise Automation, leading ops and growth for Uber, and building apps that were featured on the Apple app store. We have staff and senior engineers from Google, Uber, Meta, Shopify, Stripe, Chime, and other leading technology companies.
We have raised $125 million+ from investors such as General Catalyst, Elad Gil, Bloomberg Beta, Y Combinator, XYZ; founders and CEOs of companies such as Google (Eric Schmidt), Salesforce (Marc Benioff), Coinbase (Brian Armstrong), DoorDash (Tony Xu), Instacart, Gusto; strategic investors like Mastercard, Flexport and Samsara.
We were named to Forbes annual Next Billion-Dollar Startup List, and have just recently been selected to join the World Economic Forum as a Global Innovator.
About Us
Learn more about our mission, culture, and background on our Careers Page.
Responsibilities:
Lead & participate in building products end to end, from helping to scope projects to measuring their success and iterating quickly based on user feedback
Design, implement, and maintain the APIs & user-facing experiences core to our business and growth strategy
Debug production issues across services and multiple levels of the stack
Make effective tradeoffs between business priorities, user experience, and reliability
Requirements
Have 5+ years of experience building B2B or B2C SaaS products, preferably in fintech or the financial services domain.
Experience working with modern frontend tech (e.g. React) with a strong grasp on the fundamentals (HTML/CSS/JS) as well as building backend APIs with frameworks like Rails or Django, ORMs and SQL databases.
Enjoy thinking about systems and their life cycles, edge cases, interactions, and failure modes.
A growth mindset in your career & an extreme level of ownership over the work you do.
Strong sense of ownership and enjoy working on projects end-to-end in a fast-paced, high autonomy environment.
Preference for someone in Bay Area, CA, NY, Vancouver, Toronto, or Montreal
