Senior Backend Engineer
Kargo
Kargo in New York is seeking a Senior Engineer to design and build distributed services for the Workflow Platform modernization. You will own projects end-to-end—from design through deployment and post-launch optimization—and work with product, data, and other engineers to raise the bar on reliability and observability. The role emphasizes scalable systems, performance tuning, and active use of AI-assisted development tools to accelerate delivery. #J-18808-Ljbffr
- ...days in-office culture. Both founders are technical. Every engineer on the team has experience at early-stage startups. Several... ...to customers, make technical decisions, and ship. Role: Senior Backend Software Engineer We're a tiny engineering team building something...SeniorFull timeWork at office
$165 per hour
...DescriptionIf you say you have an idea and can covert that into a 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 APIsYou will participate in daily code deploys while working on...Senior$150k - $300k
$150,000-$300,000 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$250k
...and 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...Senior$182.75k - $278.5k
...help change mental healthcare for the better. The Work Backend at Headway involves high-stakes logic. You’re building a reliable... ...that give providers their time back. The Insurance Billing Engine: We apply AI pragmatically ( blog ) to reduce administrative...SeniorFull timeFlexible hoursShift work- ...As a Senior Backend Software Engineer on our Diagnostics team, you'll build the part of Regard that reads a patient's medical chart — labs, medications, vitals, procedures, prior notes, history — and determines which conditions are present, along with the evidence supporting...SeniorFull timeWork at officeLocal areaHome officeVisa sponsorshipRelocation package2 days per week
$250k
...ubiquitous 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....Senior$250k
...market infrastructure.About The RolePolymarket is looking for a backend engineer to build the systems that power how markets are created,... ...time.You’ll be a core individual contributor working with other senior engineers to design, implement, and operate the systems that...Senior$250k
...core of 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...Senior$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$185k - $225k
...role:Salary range: $185k - $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- ...MongoDB's Atlas team is a diverse group of engineers building and operating MongoDB Atlas, our database-as-a-service, which enables... ...to balance collaboration with focused work. We are seeking a senior backend engineer focused on identity and access management who can design...Senior
$250k
...ubiquitous 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 join our DeFi Trading team and own core improvements to our exchange systems. You'll work across low-latency APIs, high-...SeniorImmediate start- ...Lightning AI is seeking a Senior Software Engineer to design and build the backend systems powering AI agent orchestration and execution. You’ll create scalable APIs and platform capabilities for tool use, workflow orchestration, memory, and state management. You’ll partner...Senior
- ...A leading financial technology company is looking for senior software engineers focusing on backend development. This role involves taking ownership of services, building APIs, and leading projects. The ideal candidates will be proficient in Go and TypeScript/Node.js,...SeniorRemote work
- ...Axon is seeking a backend-focused software engineer to join the Prepared team in New York City. This hybrid position involves tackling challenges in audio/video processing and AI, ensuring the stability and speed of mission-critical systems. Applicants should have at least...SeniorFlexible hours
$195.5k - $264.5k
...Pave is looking for an experienced backend engineer to lead critical services on their compensation intelligence platform. The ideal candidate will have at least 5 years of experience in backend engineering, with a strong grasp of data-heavy applications using TypeScript...Senior- ...Picnic in New York is seeking a Backend Engineer to help architect and scale our real-time logistics and operations platforms. You will contribute across backend services powering web and mobile experiences, collaborating closely with frontend, product, and operations...Senior
- ...United States Digital Space LLC is seeking a backend software engineer to design scalable services and robust APIs in a remote setup. You will contribute to core platform stability, performance, and the product roadmap while collaborating with frontend and DevOps teams...SeniorRemote work
$250k
...ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.About the RolePolymarket is looking for a Backend Engineer to build the detection, monitoring, and case-management systems that keep our platform compliant and safe at scale.This role...Senior- ...Chairs and Ophelia) and an ex-Amazon Alexa engineer who led AI/ML teams at Salesforce. We've... ...and the opportunity to own foundational backend systems at a critical inflection point.... ...systems and architecture with the CTO and a senior engineer. Onsite Team Day (Half Day,...Senior
- ...Senior Backend Engineer As a Senior Backend Engineer, you will design, build, and deploy the backend services that power our creative brainstorming and creation products. You will work with web and video standards to power our suite of web-based image and video creation...SeniorFull timeWork at office
- ...Senior Backend Engineer WHY THIS ROLE EXISTS Our client is building AI technology to make healthcare accessible and free for everyone. They are seeking backend engineers to develop scalable infrastructure that supports billions of AI driven consultations while...Senior
$195k - $230k
...LGBTQIA+ Advocacy Award (2022) About the Role As a senior level software engineer at Maven Clinic, you will lead the design, development, and... ...that support the growing needs of Maven's platform and backend teams. Propose, design, develop and implement cloud-based...SeniorFull timeContract workWork at officeImmediate startRemote workFlexible hours3 days per week- ...scaling, and supporting production-ready products from scratch. 5+ years of professional experience with Java. 6+ years of experience in backend development. Quick learner with an ambitious and results-driven personality. Excellent communication and organizational skills....SeniorImmediate start
- ...with a customer to post-release monitoringSet technical direction across projects, mentor engineers, and raise the bar on how the team buildWhat You'll Bring5+ years of backend engineering experienceA strong eye for performance, reliability, and robust systems designYou...SeniorContract workFlexible hours3 days per week
$160k - $260k
...headquartered in Williamsburg, Brooklyn, NY but have a small remote team as well. About the role We are looking for a Senior Backend engineer passionate about building robust, scalable distributed systems that power mission-critical applications to join the Mathpix...SeniorFull timeWork at officeRemote work$150k - $250k
...finance with DeFi's transparency. All roles are in the Ellipsis Labs office in New York City. Ellipsis Labs is seeking a Senior Backend Engineer to join our team. As an early-stage startup, we appreciate bright generalists who can iterate and ship quickly. In this...SeniorWork at office- Nebius, Amsterdam-based, is seeking a Senior Software Engineer to join the Capacity and Quota Management team in New York. You will own backend systems that decide compute allocation and quotas across services, shaping the long-term architecture and tradeoffs. You should...Senior
$40 per hour
...Senior Backend Engineer Doctronic | New York City ONSITE (Hybrid) | Reports to CEO The Mission Let's make healthcare free and accessible to everyone through AI. We need backend infrastructure that can scale our AI doctor platform to billions of consultations while...Senior
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