Senior Software Engineer II, Payments

About the role: We’re on a mission to build the first holistic smart payment solution-one that maximizes authorization rates for our merchants by intelligently determining and executing the optimal strategy for every transaction. Our Payments team is designing and running highly critical, production-grade infrastructure, and we’re looking for a deeply technical engineer to help shape it from the ground up. In this role, you’ll lead the design and development of payment products, build resilient infrastructure, dive deep into technical complexity to solve production challenges, and work closely with teammates, stakeholders, and customers to understand their needs. You’ll have end-to-end ownership-from architecture and coding to deployment and monitoring-while helping set the technical direction for a growing initiative. This is an early-stage effort, giving you the chance to be a founding member, influence architectural decisions, and directly impact merchant success. We value thoughtful technology choices, resourcefulness, and a fast-moving, problem-solving mindset. Our engineers are creative, independent, and adaptable, working with a diverse stack of technologies to deliver maximum value to our clients. What you'll be doing: Build and enhance payment products-creating new systems from scratch while improving and integrating with existing ones Design and implement resilient, production-grade infrastructure that can handle critical workloads Lead technical initiatives within the Payments team, collaborating with teammates and stakeholders across Forter Work across a diverse tech stack and programming languages Brainstorm and shape features with product managers and peers, guiding decisions with your technical expertise Work closely with customers to understand their needs and translate them into impactful payment solutions Mentor and support fellow engineers Dive deep into technical complexity to diagnose and solve production issues Take initiative-if you see a way to make our systems or workflow better, own it and make it happen What you'll need: 6+ years building and maintaining complex software systems 6+ years backend experience, with a strong focus on production-grade systems 1+ years JavaScript experience Hands-on experience with critical production systems - high availability, reliability, and scalability Familiarity with browser, networking, and security concepts Product, production, and growth mindsets Passion for solving technical challenges that directly impact users and operations Strong communication, collaboration, and problem-solving skills Can-do attitude with ownership mentality Professional-level spoken and written English It'd be cool if you also have: Extensive experience with Node.JS Experience leading cross-team initiatives Frontend / React / Mobile experience Significant experience with databases/datastores (MySQL, Redis, ElasticSearch) Experience from previous payments companies / projects Experience building Enterprise-grade SaaS products About Us: Commerce is evolving faster than the systems built to support it. Agentic AI is redrawing how people buy. Customer expectations have a new ceiling. And bad actors are evolving alongside every advancement. Forter was built to meet this moment — and stay ahead of it. We are a human-first, AI-built company. Our technology analyzes patterns across a network of over 2 billion shoppers, delivering identity intelligence across the entire commerce journey — from sign-up to checkout to returns — that protects revenue and unlocks great customer experiences simultaneously. With Forter, businesses know who to trust, whether it’s humans or the agents shopping for them. The result: zero friction for the customers who matter. No revenue left behind. The world's most trusted brands — Nordstrom, Instacart, Priceline, Adobe, ASOS, and eBay among them — rely on Forter to get this right. Since 2013, we've raised $525M from investors including Tiger Global, Bessemer, Sequoia Ca…