FullStack Engineer (Mid-level)

What is Spade? Financial institutions process billions of transactions every day across cards, ACH, wires, and third party aggregators. But most of that data is difficult to use. Descriptions are inconsistent, merchant names don’t match, and categories vary by payment type. Spade is a data and AI platform that turns messy transaction strings into structured, verified records — and gives teams the tools to act on it across authorization, attribution, analytics, and AI initiatives. Spade leads the market in terms of merchant coverage, matching accuracy, geolocation data, and speed of transaction enrichment. Customers such as, FIS, Bilt, Mercury, Stripe, alongside many other leaders in fintech and financial services, trust Spade's data to enable personalized rewards programs, accurate applied spending rules, precise analytics requests, and innovative AI-powered features. Spade is a fast growing, Series B company backed by industry experts and top tier investors (including Oak HC/FT, a16z, Flourish Ventures, Y-Combinator, and Gradient Ventures). We’re a lean and execution-oriented hybrid team, passionate about building exceptional products for our growing customer base. We care deeply about diversity of background, experience, and opinion. We value empathy, curiosity, and passion, and strive to create an environment where individuals have autonomy and the ability to take ownership over their work.

As a Full Stack Engineer at Spade, you’ll own product experiences end-to-end, working across both the frontend and backend of our enrichment platform. You’ll build customer-facing interfaces in React and TypeScript, as well as the Python/Django APIs, data models, and platform services that power them. This is a high-ownership role on a small team, where your decisions will directly shape the usability, performance, and reliability of products processing hundreds of millions of transactions. What will you be doing? Collaborate on our technical vision to build a product customers love Build and maintain customer-facing product experience across React/TypeScript on the frontend and Python/Django on the backend Develop and maintain low-latency, massively-scalable developer facing APIs and a robust data platform supporting our data science team Partner with the team to own and improve our engineering best practices and help us scale by keeping our processes effective Debug production issues across all levels of the stack Bring a strong collaborative approach to deliver value to customers and internal stakeholders at Spade What experience, skills, and qualifications are necessary?  Must Have: 4+ years of software engineering experience building and shipping production systems in fast-paced environments Strong background with Python, Django, React and Typescript Experience with API development, SQL, and modern front end frameworks and technologies Experience building customer-facing systems from scratch, making trade-offs, and executing autonomously in early-stage environments A product mindset and strong problem solving skills, with the ability to navigate ambiguity and focus on delivering customer value A collaborative mindset, fostering a culture shared success and continuous improvement Based in NYC with ability to work out of our Flatiron office at least 2 days/week Nice to Have: Experience with Aurora RDS Postgres Experience with managing cloud infrastructure via tools like AWS CDK Experience with transaction, merchant, and location data Familiarity with fintech / data products Familiarity with writing performant SQL, using indices and analyzing query performance. Why Join Spade? Be a cultural founder. As an early employee, you’ll play a meaningful role in defining and building our culture. Get in on the ground floor. We’re a small but well-funded team – joining now comes with limited risk and unlimited upside. Build the next generation of financial infrastructure. Our products will power the next wave of