Senior Software Engineer - Full Stack
About the job
- At least 5 years of professional experience building B2B or B2C Software as a Service products.
- Ability to work effectively in a zero-bureaucracy, high-ownership environment.
- Ability to balance speed with rigor through automated tests, clean abstractions, and clear documentation.
- Ability to participate in architecture discussions while contributing deeply to code.
- Experience with React, Ruby, and Postgres, or ability to learn these tools quickly.
- Ability to communicate clearly across time zones.
- Lead ambiguous technical projects and lay the groundwork for early-stage products to evolve iteratively and scale.
- Design, build, and maintain application programming interfaces, user-facing experiences, services, and systems.
- Make effective tradeoffs between business priorities, user experience, and reliability.
- Work on critical frontend, backend, and platform projects end-to-end, from design through production operations.
- Drive scalable architecture for billions in annual payment volume and real-time risk controls.
- Work closely with product and go-to-market leads to turn ambiguous problems into elegant code.
- Experience building B2B or B2C Software as a Service products in FinTech, payments, or marketplace industries, with FinTech, payments, or marketplace experience noted as a plus.
- Ability to learn new tools quickly.
About the company
AtoB provides fintech-based fuel management and secure payments infrastructure for trucking and logistics. It enables delivery fleets, eCommerce, DTC, and third-party shippers to manage fuel purchases, ensure only authorized users can use a fuel card, and offer instant payroll for drivers. It differentiates itself with end-to-end fuel management and payroll built for fleets, backed by nationwide reach and card security features. Its goal is to reduce fuel costs and optimize routes to improve overall supply-chain efficiency and on-time, under-budget deliveries.
Company Size
51-200
Company Stage
Series C
Total Funding
$310.3M
Headquarters
San Francisco, California
Founded
2019
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Simplify's Take
What believers are saying
- eCapital partnered with AtoB in July 2026, expanding distribution into factoring clients.
- AtoB still advertises 35,000-plus fleets and 4,200-plus truck stops in August 2026.
- Mastercard partnership deepens acceptance and supports broader merchant expansion across 2026.
What critics are saying
- AtoB cut 30% of staff in October 2022; operating leverage remains fragile.
- WEX and Corpay dominate fleet payments; AtoB lacks their merchant density.
- Small-carrier defaults hit fuel-credit economics hardest during 2026 freight weakness.
What makes AtoB unique
- AtoB runs fleet cards on Mastercard, not closed-loop trucking networks.
- AtoB combines fuel payments, instant payroll, and spend controls in one workflow.
- AtoB’s telematics-linked authorization blocks fraud using GPS and driver verification.
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Benefits
Bay Area compensation offered for all US and Canada based employees
We are a remote-first company, though there is strong preference for this role to sit in the San Francisco Bay Area.
Unlimited time off
401(K) match
Growth & Insights and Company News
6 month growth
-2%1 year growth
-4%2 year growth
1%AtoB has partnered with Geotab to launch the Geotab Fleet Card, making Geotab the first fleet management platform to embed AtoB's payments platform. The card verifies fuel purchases against vehicle data before approval, preventing unauthorised transactions. The integration brings spend controls across 13 categories, including fuel, maintenance and tolls, directly into Geotab's platform. Fuel purchases are declined if the vehicle isn't at the pump or the tank lacks capacity. Cardholders access AtoB's fuel discount network, saving an average of 42 cents per gallon at over 4,200 diesel truck stops and 5 cents per gallon at 30,000 petrol stations. Eligible accounts receive fraud protection up to $250,000. The card operates natively within Geotab's system, allowing fleet operators to manage transactions, approvals and reporting alongside existing vehicle data. It's now available to eligible US fleets using the Geotab platform.
AtoB, the leading provider of modern payment solutions for the transportation industry, today announced significant growth and strategic milestones, i
SAN FRANCISCO--(BUSINESS WIRE)--AtoB, the first fintech payments platform to modernize the $790 billion trucking industry’s financial system, announced a collaboration with TravelCenters of America (TA), the nationwide operator and franchisor of the TA, TA Express and Petro Stopping Centers travel center brands. The collaboration will bring a cost savings of an average of 42 cents per gallon, providing AtoB users with competitive prices on fuel at any of TA’s over 300 locations nationwide. “At TA, we are constantly seeking opportunities to enhance the guest experience and better serve our fleet customers and professional drivers,” said Debi Boffa, Chief Executive Officer of TA. “AtoB is a platform that will save our customers time and money, and we are pleased to work with a company that is at the forefront of digitizing and modernizing the trucking industry.”. “You can’t drive across the United States without seeing TA brands everywhere you look, and with the most convenient locations, excellent amenities, and competitive pump prices, the TA and AtoB relationship just makes sense in delivering the best for drivers and fleets. We’re proud to work with TA and look forward to passing down these savings to our customers,” said Vignan Velivela, co-founder and CEO of AtoB
Bit by bit the smokestack economy — and the subsets thereof — come online, go digital, find new ways to connect stakeholders. And as counterintuitive as it might seem, fleet management, among the most smokestacky of the stacks, is inching toward becoming a beacon of connectivity, serving perhaps as a roadmap for other sectors. Trucking, of course, remains a key way of getting goods hither and yon. Late last year, the American Trucking Association reported that tonnage will grow to 14.2 billion tons within the next decade, up from a bit more than 11 billion tons in 2023
Roadz has beta launched its Unified Fleet Workspace, a generative artificial intelligence (AI)-powered fleet management solution aimed at helping commercial fleets optimize their operations. Commercial fleet operators with at least 100 vehicles under management can apply to participate in the beta program, the fleet-tech company said in a Monday (Feb. 5) press release. Roadz plans to integrate generative AI capabilities into the Unified Fleet Workspace, enabling fleet managers to ask questions about their fleet operations using natural language, according to the release. This integration, which is expected to be announced in March, will provide actionable insights based on unified fleet data, facilitating effective decision-making