Backend Engineer (Mid/Sr)
Spade Corp
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. What will you be doing? As a Backend Engineer at Spade, you\'ll own the APIs and data systems that sit at the heart of our enrichment platform. You\'ll work across the full backend stack — from the developer-facing APIs our customers depend on, to the data pipelines and platform services that power our data science team. This is a high-ownership role on a small team, where your decisions directly shape the performance and reliability of products processing billions of transactions. Collaborate on our technical vision to build a product customers love Develop and maintain low-latency, massively-scalable developer-facing APIs and a robust data platform supporting our data science team Design and implement systems that support the growth of the product and the company 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? 4+ years of experience building and scaling backend Python-based systems in fast-paced environments Proven capability with developing REST APIs and writing performant SQL Experience building using AWS infrastructure Experience building systems from scratch, making trade-offs, and executing autonomously in early-stage environments A customer-focused mindset, strong problem solving skills, and the ability to navigate ambiguity while delivering value to customers A collaborative mindset, the ability to be mentored, and a focus on your own growth trajectory Based in NYC with ability to work out of our Flatiron office at least 2 days/week Nice-to-have Proficiency in Django Familiarity with data science and analytics tools such as Pyspark, Databricks and Delta Lake, and Hex Experience with cloud infrastructure and tools like AWS CDK Experience with transaction, merchant, and/or location data Experience and/or interest in fintech and/or data products 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 innovation in fintech, helping our customers deliver better, more transparent products and services to the consumer. Benefits at Spade: Competitive Compensation. Data-driven salaries that reward performance and ownership. Meaningful Equity. Flexibility with early exercise and an extended post-termination options. Comprehensive Health Benefits. 100% paid medical, mental, dental, and vision premium option plus One Medical membership (for US-based employees). 401(k). Empowering you to invest in your future. Paid Parental Leave. 12 weeks of full pay for parents welcoming a new child into their home. Unlimited PTO. Take the time you need to unplug and unwind. Flexible In-Person Culture. NYC HQ (hybrid and dog-friendly) with remote opportunities for certain roles in US/Canada. Supporting you in and outside of work. Generous work from home stipend, company-paid lunches, Citibike Membership, and more. Salary Range: At Spade, we view total compensation as consisting of salary + equity + benefits. We recruit motivated and high performing talent, and work to compensate people in line with the value they bring to our team. We aim to pay fairly and competitively, and consider a number of factors in developing compensation offers. These factors include years and breadth of experience, interview performance, market dynamics, and internal equity. The anticipated base salary range for this role is listed above (in USD). Diversity & Inclusion at Spade: Spade is an equal opportunity employer, committed to building a culture that is diverse, equitable, and inclusive. We believe that having people with different backgrounds, experiences, abilities, and perspectives not only helps us build the best products for our customers, but also helps us be the best version of ourselves. U.S. EQUAL EMPLOYMENT OPPORTUNITY INFORMATION (Completion is voluntary and will not subject you to adverse treatment) Spade provides equal employment opportunities to applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, or any other classification protected by applicable law. We invite all applicants to voluntarily self-identify their race, ethnicity, and gender. Submission of the information on this form is strictly voluntary and refusal to provide it will not subject you to any adverse treatment. Information obtained will be retained in a confidential file and separate from personnel records. This information may only be used in accordance with the provision of applicable federal laws, executive orders, and regulations. If you want more information about any of the sections, please check with a company representative. Male Female Decline to self-identify Race Hispanic or Latino - A person of Cuban, Mexican, Puerto Rican, South or Central American, or other Spanish culture or origin regardless of race. White (Not Hispanic or Latino) - A person having origins in any of the original peoples of Europe, the Middle East, or North Africa. Black or African American (Not Hispanic or Latino) - A person having origins in any of the black racial groups of Africa. Native Hawaiian or Other Pacific Islander (Not Hispanic or Latino) - A person having origins in any of the peoples of Hawaii, Guam, Samoa, or other Pacific Islands. Asian (Not Hispanic or Latino) - A person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian Subcontinent, including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam. American Indian or Alaska Native (Not Hispanic or Latino) - A person having origins in any of the original peoples of North and South America (including Central America), and who maintain tribal affiliation or community attachment. Two or More Races (Not Hispanic or Latino) - All persons who identify with more than one of the above five races. Hispanic or Latino White (Not Hispanic or Latino) Black or African American (Not Hispanic or Latino) Native Hawaiian or Other Pacific Islander (Not Hispanic or Latino) Asian (Not Hispanic or Latino) American Indian or Alaska Native (Not Hispanic or Latino) Two or More Races (Not Hispanic or Latino) Decline to self-identify SELF-IDENTIFICATION OF VETERAN STATUS (Completion is voluntary and will not subject you to adverse treatment) If you believe that you belong to any of the following categories of protected veterans, please indicate by making the appropriate selection Disabled veteran – A veteran who served on active duty in the U.S. military and is entitled to disability compensation (or who but for the receipt of military retired pay would be entitled to disability compensation) under laws administered by the Secretary of Veterans Affairs, or was discharged or released from active duty because of a service-connected disability Recently separated veteran – A veteran separated during the three-year period beginning on the date of the veteran\'s discharge or release from active duty in the U.S military, ground, naval, or air service Active duty wartime or campaign badge veteran – A veteran who served on active duty in the U.S. military during a war, or in a campaign or expedition for which a campaign badge was authorized under the laws administered by the Department of Defense Armed forces service medal veteran – A veteran who, while serving on active duty in the U.S. military, ground, naval, or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985 (61 Fed. Reg. 1209). I identify as one or more of the classifications of protected veteran listed above I am not a protected veteran I decline to self-identify for protected veteran status #J-18808-Ljbffr Spade Corp
$167k - $219k
...content indexed, the services that query it, and the systems that serve it with high relevance and low latency. We're looking for a Backend Engineer who can own this end-to-end: from data ingestion and Elasticsearch index design through the retrieval/query services that...SeniorWork at office2 days per week- ...adoption is payments. We are building a stablecoin clearinghouse to make stablecoins move like money, not a trading asset. We need a backend engineer who can own the systems that move real value: mint and burn flows, reserve accounting, reconciliation, settlement,...SeniorRelocation package
$160k - $200k
...exchange operating since 2004 and was acquired by Crypto.com in 2022. ABOUT THE ROLE We are seeking a highly skilled Mid-to-Senior Backend Engineer to spearhead the growth of our 24/7 high-throughput infrastructure, with a particular focus on expanding our core...SeniorContract workWorldwide- Job ID: 28999781Reference Number: 26-00726Title: Node.js Backend Developer- Mid Level DeveloperPosted Date: 2026-08-04Contact: Vishika ChaudharyContact... .... Collaborate with solution architects, contact center engineers, QA teams, and business stakeholders throughout the...Suggested
$160k - $240k
...This is a ground-floor opportunity - engineers joining at this stage will have outsized... ...client's highest-priority hire. A staff backend engineer is currently working across large... ...Openings Up to 2 - likely 1 senior plus 1 mid-to-senior. Strong candidates who are not...SeniorWork at officeRemote workHome officeFlexible hoursNight shift$160k - $190k
...Description JOB TITLE: Sr. Backend Engineer LOCATION: Jersey City (Hybrid, 3 days/ week) REPORTS TO: Squad Leader The Company: Sunbit builds financial technology for real life. Our AI-native platform helps more people get to "yes" at the moments that...Senior3 days per week- ...have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Sr. Lead Software Engineer at JPMorganChase within the Digital Technology, Personalization & Insights team, you are an integral part of an agile...SeniorFor contractors
$165 per hour
...something beautiful, then you are the one we are looking for.As our Sr. Backend Engineer, you will be:You will develop efficient web services and... ...dot comSummaryType: Full-timeFunction: Information TechnologyExperience level: Mid-Senior LevelIndustry: Computer Software- ...reliability — and grow the team that runs it. This is a high-impact engineering role with meaningful equity, real ownership, and direct... ...scales. What you'll do Set the architecture. Own how our backend fleet and data pipeline fit together, and where they go next....SeniorFull time
- ...opportunity to help build core infrastructure for the next generation of financial markets. About the Role As a Senior Rust Backend Engineer, you will work across the platform with a high-performing engineering team. You’ll design, architect, and build core and edge...SeniorFull time
$150k - $250k
$150,000-$250,000 per annum New York, United States Permanent Senior Backend Engineer - New York My client is a well funded early stage startup building a high scale social platform from the ground up. They are focused on building persistent, high performance...SeniorPermanent employment$160k - $240k
...leading investors, the company is expanding rapidly and looking for engineers who thrive in a fast-paced, high-ownership environment where... ...product and business. About the Role Design and build backend services powering fintech and SaaS products for healthcare customers...SeniorFull timeWork at officeRemote work$250k
...we need your help adding fuel to the fire.About the RolePolymarket is launching perpetual futures and we're looking for Senior Backend Engineers to own the core systems that make it run. This is backend exchange engineering in the truest sense: low-latency order matching...Senior$250k
...beacon of truth in global media and we need your help adding fuel to the fire.About the RolePolymarket is looking for a Senior Backend Engineer to build and scale the payments infrastructure that powers deposits, withdrawals, and money movement across the platform.This...Senior- ...@oprecruiting.comPhone: (***) ***-****Staff Backend EngineerLocation: RemoteAbout the Opportunity... .... We are seeking a high-caliber Senior Engineer to architect robust backend systems that... ...projects while mentoring junior and mid-level engineering staff.Collaborative Innovation...Contract workFlexible hours
$250k
...global media, powered by fast, reliable, and deeply technical market infrastructure.About the rolePolymarket is looking for a backend/product engineer to own the core domain APIs and data models that power our consumer-facing product.You’ll work at the intersection of...Senior$250k
...what Polymarket does. Every trade, every order, every market resolution runs through the systems this team owns. As a Senior Backend Engineer on the Services team, you'll be working directly on that infrastructure, building and scaling the backend that processes real...Senior- ...Senior Backend Engineer Novella is building AI to protect the largest, most complicated assets in the world. Whether it's a rocket going to space or a skyscraper on the coast, Novella is building the first AI powered specialty insurance brokerage. We're looking...Senior
$165k - $225k
...Salary range: $165k – $225k USD* We are looking for smart engineers who love to code, seek challenging problems, and appreciate recognition... ...full-stack, data, ML, and DevOps engineers to build scalable backend solutions as we continue to grow. We're a small team where...SeniorWork at officeRemote work$173.48k - $213.96k
ABOUT THE ROLEWe are seeking a seasoned backend software engineer and hands-on technical lead to drive the expansion of Peloton’s e-commerce platform across web, retail, and emerging sales channels. In this role, you will architect and scale high-performance, resilient...SeniorLocal area$190k - $235k
...interviewing, a best-in-class ATS (applicant tracking system), and the most powerful job search experience in the world. As a senior backend engineer, you’ll be responsible for leading engineering efforts across both our job-seeker and company experiences. You’ll be...Senior- ...founding team at Two Chairs and Ophelia) and an ex-Amazon Alexa engineer who led AI/ML teams at Salesforce. We’ve raised $5.4M from... ...rapidly growing revenue, and the opportunity to own foundational backend systems at a critical inflection point. Mission-critical problem...Senior
- ...Paxos Labs Transit Engineer Paxos Labs builds enterprise infrastructure for trusted onchain financial products. We work with major... ...Required ~6+ years building and operating production backend systems, with true ownership of something that had to stay up....SeniorContract work
$200k - $275k
...Senior Backend Engineer Title of Role: Senior Backend Engineer Location: New York, onsite Company Stage of Funding: Venture-Backed — Consumer Office Type: Onsite Salary: $200K–$275K Company Description We're representing a dynamic new dating service...SeniorWork at office- ...resolution, and continuous code quality improvement Use test driven development (TDD) and maintain test coverage Introduce engineering process improvements and tools (depending on seniority level) Mentoring/pair programming/leadership (depending on seniority level...Senior
- ...continuous load, while bringing AI-assisted approaches into production engineering. You will take responsibility for key components from design... ...learning colleagues. What You'll Do Strengthen backend services that process high-volume streaming data, live media...SeniorFull timeWork at office
- ...Senior Backend Engineer | FinTech Data Platform We're partnering with an innovative and rapidly growing technology business that is transforming how financial data is extracted, structured, and delivered through cutting-edge AI, NLP, and machine learning technologies...SeniorWork at officeRemote work
$150k - $250k
...enterprise agents learn by doing. Instead of relying on brittle prompt engineering or static tests, we expose models to realistic user flows,... ...small engineering team by building the simulation engine, app backend, and frontend that power Veris AI. You will ship features used...Senior- ...Who are we looking for: Are you an entrepreneurial engineer who is looking to be a critical part of a growing team? Join us! Our team... ...(Lambda, EKS, RDS, EC2, etc.). Full node.js on the backend. Moving towards more Kubernetes. React on the frontend...SeniorFull timeWork at officeRemote work
- ...customers. Are you ready to join us?Alcon is looking to hire a Sr. Principal, Medical Science Liaison to join our Research & Development... .... The Sr. Principal, Medical Science Liaison (Science/Tech/Engineering Path) is primarily responsible for presenting scientific and...SeniorFull timeTemporary workRemote workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Backend Engineer (Mid/Sr). Be the first to apply!
- java developer backend New York, NY
- backend software engineer New York, NY
- remote back end developer New York, NY
- lead backend developer New York, NY
- back-end developer New York, NY
- senior backend developer New York, NY
- backend python developer New York, NY
- backend intern New York, NY
- backend internship remote New York, NY
- senior business development New York, NY



