Senior Backend Engineer Scale Payments & Loyalty APIs
Blackbird Labs Inc
A leading technology firm in New York City seeks a Senior Backend Engineer to design and maintain core APIs, collaborating with product and design teams. Ideal candidates have over 5 years' experience in backend API development, proficiency in Kotlin, and are adept in RESTful API design. The role involves mentoring junior engineers and contributing to architectural decisions, all within a fast-paced environment focused on building innovative solutions. Competitive salary with benefits is offered. #J-18808-Ljbffr
- MoneyLion is seeking a Senior Software Engineer to join our Backend Core Enterprise team in New York City, working onsite 3 days a week. You will design and implement large-scale backend systems, focusing on data-driven APIs and high-quality performance. With 3-5 years...Senior3 days per week
- ...A leading crypto information platform is seeking a Senior Backend Engineer to design, build, and maintain scalable backend systems. This role involves owning API development, database optimization, and collaborating across teams. Ideal candidates will have over 5 years...SeniorRemote workFlexible hours
- ...global creator ecosystem with meaningful scale and long‑term momentum. About the... ...'re Looking For We’re looking for a Senior / Staff Backend Engineer (API) – Economy to join our Economy team.... ...ownership, creator monetization, payment processing, and economic analytics at...SeniorRemote workFlexible hours
- ...WEX Inc. is searching for a Senior Software Engineer to join our Connected Fleet team, utilizing strong API and back-end skills. The ideal candidate will develop tools to modernize the vehicle experience while maintaining high standards for performance and reliability....Senior
- ...Mutual of Omaha is seeking a software engineer to drive innovation and scale systems that enhance business... ...inclusive environment. With a focus on backend development using Java and Spring Boot... ...understanding of cloud services, RESTful APIs, and modern development practices....SuggestedRemote work
- ...fintech company based in New York is seeking an experienced engineer to develop user-centered developer tools. Responsibilities include building and maintaining production systems at scale, ensuring adherence to API development best practices, and writing clear technical...Senior
- ...Reddit, Inc. is seeking an experienced engineer to work on the foundational platform for GraphQL infrastructure. This fully remote role... ...engineers. The ideal candidate will have over 5 years of experience in backend systems, proficiency in Go, and a solid understanding of cloud...SeniorRemote work
$180k - $220k
...Multicoin seeks a Senior Backend Engineer in New York to enhance their crypto payments infrastructure. You will collaborate with diverse teams to design and maintain backend APIs that merge traditional payment systems with blockchain technology. Ideal candidates have...SeniorFlexible hours- ...INTEGRA RH is looking for a skilled backend engineer to build core system components and develop self-serve product features. You will design and enhance foundational infrastructure and drive engineering projects with urgency. The ideal candidate has over 5 years of experience...Senior
- ...leading travel technology company in New York City seeks a Senior/Staff Backend Engineer to join its Payments & Revenue Pod. The ideal candidate will design and... ...backend development, and experience with Python and APIs. This role offers a hybrid work schedule and...Senior
- ...Contract (Full-Time Preferred) Domain: Payments / Fintech / eCommerce Infrastructure... ...orchestration, gateway optimization, and API-driven architecture . Experience with... .... About the Role We are seeking a senior backend engineer to support a payment modernization initiative...SeniorFull timeContract workRemote workFlexible hours
- ...About the Role Polymarket is looking for a Senior Backend Engineer to work on Gamma, the core backend... ...trade, and resolution on the platform: at scale, under load, with no margin for error.... ...and enforce engineering standards. Own API versioning strategy, error handling...SeniorImmediate start
$180k - $260k
...Framework Ventures is seeking a Senior Software Engineer (Backend) to join their innovative team. The role... ...developing new features and improving backend API services. Candidates should have a... ...development and knowledge of large-scale systems. The position promotes...Senior$180k - $220k
...Blackbird: Blackbird Labs is a loyalty and payments platform establishing... ...outstanding restaurants. As a Senior Backend Engineer, you’ll be responsible for... ...and maintaining our core APIs. You’ll work closely with... ...play a critical role in scaling the platform. We’re looking...SeniorFull timeLive outFlexible hours$180k - $220k
...Type On-site Department Engineering About Blackbird: Blackbird Labs is a loyalty and payments platform establishing... ...restaurants. As a Senior Backend Engineer, you’ll bridge... ...practices, and help scale secure, user‑friendly... ...and maintain backend APIs that integrate...SeniorFull timeContract workLive outWork at officeFlexible hours- ...A geospatial intelligence company in the United States is seeking a Senior Backend Engineer to develop robust backend solutions and scale APIs for advanced risk analysis. The role involves architecting cloud-native software and mentoring team members. Candidates should...Senior
- ...Speechify is looking for a Software Engineer, Platform to develop and maintain robust backend APIs that support various services, including payments and subscriptions. The ideal candidate will have experience with GCP and a strong understanding of cloud technologies....SeniorRemote work
$154k - $220k
...United States seeks an experienced software engineer proficient in Go to design and implement scalable backend services. The ideal candidate will have... ..., particularly in developing large-scale distributed systems and RESTful APIs. Responsibilities include mentoring junior...Senior- ...A tech-driven financial solutions company in New York is seeking a BackEnd Engineer to help design and build high-performance APIs for their web3 payments platform. This foundational role requires strong experience in producing backend systems, proficiency in Typescript...SeniorWork at officeRemote work
- ...Spotify is seeking a Backend Engineer to join our Artist-First AI Music lab in New York, NY. This role involves designing and building generative... ...ideal candidate has experience in Java, knows how to design APIs, and thrives in collaborative environments. The position...Remote workFlexible hours
$152k - $225k
...Rippling is seeking a Software Engineer II, Backend to join its team in New York, New York. In this role, you will design and implement backend services and APIs that power core product features. Ideal candidates should have over 2 years of experience, with proficiency...Work at office- ...A leading Web3 company in New York is seeking a Backend Engineering Manager to lead the backend infrastructure team. The role involves driving... ...ensuring the delivery of robust systems that support Web3 payments. Ideal candidates have strong experience in distributed systems...
$224k - $336k
...A leading tech company in New York is seeking an experienced API Developer to enhance developer tools that prioritize user ownership. The role requires 8+ years of experience, a strong understanding of API best practices, and excellent communication skills. The annual...Senior- ...Ramp, located in New York, is seeking a Backend Engineer to design and build scalable systems for money movement. The role involves architecting abstractions for payment infrastructure and ensuring reliability. Candidates should have 5+ years of backend engineering experience...SeniorFlexible hours
- ...A fast-growing tech startup is seeking software engineers to develop core components of their advanced sales platform. As part of the engineering... ...team, you will design and implement reliable systems and APIs while collaborating closely with product, design, and sales....Senior
- ...A healthcare advocacy startup is seeking a Senior Backend Engineer to design scalable services and maintain a robust backend system. The role involves... ...have 5+ years in backend development and strong skills in API design and Typescript. This position is fully remote and...SeniorRemote work
- ...A healthcare advocacy marketplace is seeking a Senior Backend Engineer to design and develop scalable services and APIs. You will own your workflow from design to deployment, collaborate with cross-functional teams, and ensure system reliability. The ideal candidate has...SeniorRemote work
- ...platform enables seamless onboarding, payments, and money movement across both... ...financial ecosystems. We're looking for a Backend Engineering Manager to lead and scale our backend infrastructure team.... ...background in distributed systems, APIs, and database design Opinions on a...
- ...Smart Working Solutions is seeking a Senior Backend Developer to join a collaborative team focused on developing scalable backend services and APIs for a modern accommodation booking platform. This role involves optimizing systems, ensuring API reliability, and mentoring...SeniorRemote work
- ...cutting-edge technology company based in New York is seeking a Backend Product Engineer to develop and maintain their core Radar platform. You will... ...with a team of innovative engineers, handling high-volume API traffic and engaging directly with customers to incorporate...Remote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Backend Engineer Scale Payments & Loyalty APIs. Be the first to apply!
- back end developer internship summer New York, NY
- junior backend developer New York, NY
- senior backend developer New York, NY
- entry level back-end developer New York, NY
- lead backend developer New York, NY
- remote back end developer New York, NY
- back-end developer New York, NY
- backend python developer New York, NY
- java developer backend New York, NY
- backend software engineer New York, NY

