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Commerce

Software Engineer II - Backend (Ruby)

London
Posted 23 days ago
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Software Engineer II - Backend (Ruby)

Welcome to the Agentic Commerce Era

At Commerce, our mission is to empower businesses to innovate, grow, and thrive with our open, AI-driven commerce ecosystem. As the parent company of BigCommerce, Feedonomics, and Makeswift, we connect the tools and systems that power growth, enabling businesses to unlock the full potential of their data, deliver seamless and personalized experiences across every channel, and adapt swiftly to an ever-changing market. We believe in harnessing AI responsibly to unlock new possibilities, and we’re looking for individuals who use it intentionally to solve problems, accelerate outcomes, and expand what’s possible in their role. Our purpose is to help businesses confidently solve complex commerce challenges so they can build smarter, adapt faster, and grow on their own terms. If you want to be part of a team of bold builders, sharp thinkers, and technical trailblazers who shape the future of commerce, this is the place for you.

The Commerce Payment integrations team is looking for a Software Engineer who wants to make an impact at every level of society by powering innovators, creative thinkers, entrepreneurs, and business owners around the world to be successful at every stage of their growth.

The Commerce Payment integrations team is responsible for building, operating, and continuously improving payment integrations on the BigCommerce platform - one of the most business-critical and revenue-sensitive areas of the product.

Our team builds payment gateway integrations that help merchants securely process payments and support scalable, high-performance, and flexible checkout experiences.

What The Team Owns

Designs and maintains payment integrations functionality and APIs, including cart-to-order flows and payments processing Ensures high availability, performance, and correctness for checkout and payments related services, given their direct impact on merchant revenue Partners closely with Product to evolve checkout and payments capabilities while balancing quality, security (PCI), and speed of delivery Owns incident management and on-call responsibilities for checkout services due to their critical nature

The Commerce Engineering organisation is on a mission to build the leading SaaS eCommerce platform. We work closely with engineering teams across multiple domains, product managers, designers, business stakeholders, and external partners to build a platform where we can easily and securely deliver new and alternative user experiences. Our team brings together people with varied experience and strengths, and we iterate, learn, and build great software together.

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

What You'll Do

Design, implement, and maintain features in a Ruby on Rails service for the payments offering on the BigCommerce platform Ensure functionality is production-grade, with the appropriate test coverage on all layers, instrumentation in place, and documentation Troubleshoot production issues and contribute to post-incident reviews to improve reliability Produce bullet-proof code that is robust, efficient, and maintainable Work on challenging problems such as query optimization and performance optimization while adhering to security protocols Work closely with operations and infrastructure to improve the architecture while building and scaling back-end services Engage in technical discussion of new solutions and architectures Build beautiful, scalable products using modern tools Collaborate with our product and design teams to define feature specifications and timelines Build new features with a focus on testability and extensibility Engage in technical discussion of new solutions and architectures Mentor other engineers in the current domain Review other engineer’s code to maintain and improve quality and security Support an open, positive, and energized culture Encourage innovation and foster an environment of continuous improvement Ensure that technical decisions support our goals of quality, performance, scalability, reliability, availability, and security

Who You Are

3+ years of professional backend development experience, with a strong focus on Ruby on Rails Solid understanding of building and operating production-grade systems (e.g. you know your way around logs, traces, metrics, feature flags, and can debug live traffic issues) Familiarity with observability tooling (e.g. Prometheus, Grafana, Sentry and Lightstep) A good understanding of Domain Driven Design experience integrating with third-party APIs and services, particularly those with nuanced state transitions (like payment flows). Education: Preferred Minimum Bachelor's degree in CS, EE, SW, CE, MIS; or equivalent experience or completed either a comprehensive software engineering boot camp Experience with principles of continuous integration and designing, implementing and taking ownership of various tasks across the development cycle Experienced in developing high-performance, scalable and available web services, and applications Experience with PHP and Scala is preferred

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Inclusion and Belonging

At Commerce, we believe that celebrating the unique histories, perspectives and abilities of every employee makes a difference for our company, our customers and our community. We are an equal opportunity employer and the inclusive atmosphere we build together will make room for every person to contribute, grow and thrive.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the interview process, to perform essential job functions and to receive other benefits and privileges of employment. If you need an accommodation in order to interview at Commerce, please let us know during any of your interactions with our recruiting team.

Learn more about the Commerce team, culture and benefits at https://www.commerce.com/careers/

Protect Yourself Against Hiring Scams: Our Corporate Disclaimer

Commerce, along with many other employers, has become the subject of fraudulent job offers to hopeful prospective job seekers.

Be Advised

Commerce does not offer jobs to individuals who do not go through our formal hiring process.

Commerce Will Never

require payment of recruitment fees from candidates; request personally identifiable information through unsanctioned websites or applications; attempt to solicit money from you as part of the hiring process or as part of an employment offer; solicit money to complete visa requirements as part of a job offer.

If you receive unsolicited offers of employment from Commerce, we urge you to be extremely cautious and avoid engaging or responding.

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Skills

Ruby on Rails
Backend Development
Production-Grade Systems
Observability Tooling
Domain Driven Design
API Integration
Continuous Integration
High-Performance Web Services
Scalability
Security Protocols
Troubleshooting
Code Review
Mentoring
Collaboration
Architecture Improvement
Performance Optimization

Location

London, England, United Kingdom

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