Backend Engineer - Card Transaction Processing
Ether
About us Ether.fi is one of the largest crypto companies in the world. We have over $10B in assets under management and a team of 30 almost all technical staff. We’ve been profitable day one and are focusing on building real consumer applications. The future we envisage is true on‑chain banking. Our current products; Stake, Liquid, and Cash enable users to earn yield in a variety of DeFi strategies, and spend their assets in the real world with our credit cards. You can view public analytics on Dune for Cash and Stake. Position overview We’re looking for a senior full backend software engineer to own core backend architecture, card transaction processing and high availability. You will belong to a key engineering team focusing on delivering distributed, scalable and robust backend systems. Everything from card transaction processing, low latency apis, microservice architectures and on-chain data indexing. Anything that a neobank would build is on our roadmap. What you’ll do Own core areas of our backend systems, and extend current functionality to improve throughout and latency Design, develop, and optimize scalable transaction processing services to support high‑throughput, low‑latency financial transactions. Tackle the challenges in user frictions for their card transactions being declined Drive improvements in our Cloud Infrastructure, CI/CD pipelines, automation, observability, and monitoring systems. What we are looking for Strong fundamentals in software engineering and problem solving You have shipped impressive products with thousands of real users 5+ years of professional coding experience Drive, willingness to work hard and go the extra mile. We are a highly ambitious, driven team with audacious goals, and we work very hard to make them a reality Plus if you are experienced in credit card transaction processor such as Paymentology, Episode 6, etc. Plus if you are experience in card issuing side Perks and benefits Competitive salary, performance‑based incentives, and token allocation grant Opportunity to work on multi‑billion dollar products as part of a small team Health, dental, and vision insurance plans Global team with opportunity for travel and working out of our 3 offices around the world 4 weeks work from anywhere Exciting company events and team‑building off‑sites #J-18808-Ljbffr Ether
$166k - $195k
...of Robinhood's credit card and money products. We... ...systems support real-time transactions and robust financial... ...performance. As a Software Engineer on the Money Platform team, you’ll build backend systems that enable... ...recruiter during the interview process. Base Pay Range: Zone...SuggestedWork at officeFlexible hoursShift work3 days per week$145k - $181.25k
...physical and digital trading cards, sports memorabilia,... ...technology platform. Engineers at Fanatics Live build... ...commerce, marketplace transactions, creator tooling, and... ...We are seeking a Backend Software Engineer to help... ...interactions, order processing, inventory management,...SuggestedTemporary workFanatics
New York, NY3 days ago- ...it. What we're looking for As a Backend Engineer, you’ll design, develop, and maintain... ...our business depends on (e.g. card payments, treasury management, transactions booking, crypto liquidity) Our... ...leave Own the development process that will face on the customer's...SuggestedRelocation package
- ...exchange balances, or fiat from a card or bank account, all in a... .... Our goal is simple: make transacting with any asset feel... ...the Role We're looking for a BackEnd Engineer to join our growing team at... ...Background with high-scale payment processing or financial compliance...SuggestedWork at officeRemote work
- ...customer support with We currently process over $1.5B in annual transaction volume and surpassed $100M in... ...here About the Role As a backend engineer, you'll be responsible for extending... ...offering - a deposit account and debit card powered through our Banking as a...SuggestedFull timeWork at officeRemote workVisa sponsorshipFlexible hours
Comun
New York, NY4 days ago $200k - $220k
WHAT IS SPADE? Financial institutions process billions of transactions every day across cards, ACH, wires, and third party aggregators. But most of that data... ...: * 6+ years of experience building and scaling backend Python-based systems in fast-paced environments *...Temporary workWork at officeRemote workWork from homeSpade Corp
New York, NY1 day ago$160k - $190k
...Description JOB TITLE: Sr. Backend Engineer LOCATION: Hybrid in NY/... ...else, the Sunbit Credit Card delivers a modern, no-fee... ...by sharing ideas, improving processes, and supporting teammates.... ...of merchants and millions of transactions. Its fast, fair, and simple...Sunbit
New York, NY5 days ago$120k - $160k
...money, and stress. It starts with Made Card - a credit card designed specifically for... ...About the Role We’re looking for a Backend Engineer to help build and scale the services that... ...holidays Throughout the interview process, please remember that emails will only be...Local areaFlexible hoursMade Card
New York, NY17 days ago- ...our families. As a software engineer at Frec, you'll create products... ...What you will do: Backend Engineering: You will be... ...Distributed Systems & Data Processing: You'll tackle complex backend... ...challenges around data consistency, transactional integrity, and high...Work at officeVisa sponsorshipFlexible hours
Frec Markets, Inc
New York, NY3 days ago $140k - $210k
..., a small team of roughly 8 engineers is incubating a novel distributed... ...the Role: We need a Backend/Systems Engineer who owns... ...but the JSON-RPC endpoint, transaction status tracking, analytics pipelines... ...are agreeing to our use and processing of your data in accordance...Temporary workWork at officeLocal areaWorldwideFlexible hoursStellar
New York, NY2 days ago$140k - $240k
Overview The Backend Engineer on the AI Platform team plays a critical role in building and evolving... ...that support complex business processes across loans, documents, accounts, users... ...to service architectures that support transactional, operational, analytical, and AI‑...Local areaRemote workFlexible hours$10k
...combines payments, corporate cards, vendor management, procurement... .... Join our growing Ops Engineering team and help build internal... ...experiences Develop robust backend services and APIs that power... ...information during the hiring process. Ramp Applicant Privacy Notice...Full timeWork at officeHome officeRelocation packageFlexible hours$225k - $275k
...Affirm’s next frontier is the Card platform. The Card team is... ...into the weeds of credit card transaction data, to improving the... ...do Lead a high performing backend engineering team (Kotlin & Python) Collaborate... ...support during the hiring process. For U.S. positions that...Flexible hoursAffirm
New York, NY3 days ago$125k - $250k
...built for high-value, global, and instant transactions. We are a Series A-stage company... ...the role We are looking for a Senior Backend Engineer to own the core systems that make this... ...financial systems. We value your time: our process focuses on practical system design and...WorldwideFin
New York, NY11 days ago$170k - $245k
...Senior Backend Engineer Step into a high-impact Senior Backend Engineer opportunity... ...into successful delivery. • Improve process stability, quality, and throughput through... ...Solid understanding of event-driven, transactional backend systems, including workflows,...Top Engineer
New York, NY2 days ago$200k - $400k
...success for both clients and candidates. Senior Backend Engineer (Exchange Infrastructure) Location: New York, NY... ...core exchange Implement scalable services for order processing, market data, and transaction workflows Optimize systems for performance,...Work at officeRecruiting from Scratch
New York, NY4 days ago$200k - $400k
...Senior Backend Engineer (Blockchain Infrastructure / Onchain Systems) Location: New York, NY or Remote Company Stage: High... ...crypto infrastructure, finance, and media, the platform processes billions in transaction volume and relies on highly performant onchain systems...Contract workWork at officeRemote workRecruiting from Scratch
New York, NY5 days ago- ...Senior Backend Engineer We put subject matter experts in control of data analysis and remove... ...machine learning and natural language processing, with 10,000+ citations of our team's work... ...a startup before. US Citizens or Green Card holders only. Qualifications...
dMetrics
Brooklyn, NY1 day ago - ...Backend Engineer As a backend engineer, you'll be responsible for extending our systems to... ...offering — a deposit account and debit card powered through our Banking as a Service... ...Work with back end peers to establish new processes, software patterns, and tools that...Work at officeRemote workVisa sponsorshipFlexible hours
Rad Hires
Hoboken, NJ5 days ago - ...stablecoins usable in the real-world by powering card transactions, cross-border payments, B2B purchases,... ...Team You'll be one of the first engineers on Rain's new AI team. We're building... ...product roadmap Build and scale the backend systems, APIs, and data pipelines that...Work at officeWork from homeFlexible hours
Rain
New York, NY1 day ago $160k - $200k
...; collect physical and digital trading cards, sports memorabilia, and other digital... ...Role Summary We are hiring a Senior Backend Engineer to lead the evolution of the Live and Collect... ...role focuses on building and scaling transaction systems that enable global commerce,...Temporary workFanatics
New York, NY5 days ago- ...Lev Engineering Team Role Lev is the operating system for commercial real estate transactions. Too many transactions today are still run on legacy... ..., and Postgres on the backend and React.js on the front-... ...subjects like Engineering processes, best practices, code quality...Work at office
Lev
New York, NY4 days ago - Polymarket is seeking a skilled backend engineer in New York to join the Onchain Execution team. This role involves designing systems for transaction processing on our prediction market platform, requiring deep blockchain knowledge and 5+ years of backend development experience...
$196k - $230k
...team + role Robinhood's Credit Card & Banking Product Engineering team conceptualizes, designs and builds... ...mobile application to underlying backend systems. Team members are trusted with... ...your recruiter during the interview process. Base Pay Range: Zone 1 (Menlo...Full timeImmediate startShift work$110k - $270k
...Description Job Description Maxana is seeking an experienced Backend Engineer for a confidential client — a well-funded AI platform... ...Evaluate and strengthen technical architecture, tooling, and processes Champion software quality, drive continuous delivery, and...Flexible hours2 days per weekMaxana
New York, NY20 days ago- ...We're a small team that came from trading, quant, and engineering roles at tier one financial institutions who were previously... ...the market. We are now building a platform which can process the most complex transactions executed across financial markets. We are building this...Work at office
- ...About the Role Heron processes millions of sensitive financial... .... The challenge is that our backend was built for speed-to-market... ...patterns that let a 15-person engineering team ship product... ...20 million individual bank transactions daily for our customers. We...Full timeWork at office
Heron Data
New York, NY1 day ago - ...Description: Job Duties: -Develops innovation strategies, processes, and best practices. - Drives the execution of multiple... ...design. - Leads the work of other small group of 3 to 4 engineers for assigned Engineering projects - Leads and participates in...
Redolent
Hoboken, NJ2 days ago $180k - $220k
...Location Type On-site Department Engineering About Blackbird: Blackbird... ...restaurants. As a Senior Backend Engineer, you’ll bridge... ...APIs that integrate blockchain transactions with traditional payment... ...including debit, credit, and ACH processing. Exposure to AWS...Full timeContract workLive outWork at officeFlexible hours$180k - $250k
...signals, and significant ownership upside. Engineers who enjoy solving money-movement... ...Design, build, and operate core backend services for stablecoin infrastructure:... ...integrations, or other high-throughput transactional systems ~ Strong fundamentals in distributed...Immediate startRelocation packageDecruit LLC
New York, NY1 day ago
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