Senior Backend Engineer
NxT Level
Senior Backend EngineerOur 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 ensuring medical safety and HIPAA compliance.This role is central to delivering reliable and secure systems at massive scale.Healthcare API InfrastructureDesign and maintain high performance APIs using Python and cloud services to handle millions of requests each monthDevelop RESTful APIs that support AI healthcare tools and internal platform workflowsProcess sensitive patient data in real time while maintaining strict HIPAA complianceCoordinate internal APIs to support web platforms and AI decision makingIntegration and Data SystemsImplement secure health record exchange with EHR systems, national health networks, and QHINsIntegrate with telehealth providers, analytics platforms, and third-party healthcare APIsProcess large volumes of sensitive data with encryption and compliance safeguardsBuild partner API integrations across multiple diverse healthcare systemsScale and ReliabilityOptimize databases for high-volume, complex healthcare queriesImplement secure caching and session management using RedisDevelop error handling, failover, and disaster recovery systems for mission critical servicesEnhance performance and reliability to support rapid user growthAI System IntegrationCoordinate backend workflows for AI tools and clinical decision makingDevelop Python-based deterministic systems alongside AI agents to ensure clinical accuracyBuild APIs supporting model inference, data preprocessing, and result handlingImplement validation layers and human escalation protocols for AI safetyThis role also includes work on healthcare compliance automation, advanced system monitoring, multi-region deployment, and foundational backend infrastructure for future AI healthcare capabilities.Engineering led environment with minimal process overheadFlat structure with direct collaboration with company leadershipEnd to end ownership from concept to productionAI assisted development tools encouragedFast moving team with strong judgment and accountabilityBackgroundComputer science degree or equivalent hands on experienceEngineering, math, or related technical degrees welcomedTrack record of operating at a high engineering standardFounder level ownership mindset or early stage startup experience preferredAbility to work independently while collaborating across teamsTechnical ExperienceSix or more years of backend engineering experienceStrong experience with Python and frameworks such as FastAPI or FlaskCloud services experience and high volume API handlingProficiency with relational databases and performance optimizationExperience with Redis, caching strategies, and distributed systems designSystem Design and IntegrationThird-party API integration and webhook managementMicroservices architecture and distributed system patternsSecurity best practices for sensitive data and API designCI/CD pipelines, containerization, and deployment automationMonitoring, logging, and observability toolsNice to HaveExperience in healthcare, fintech, or other regulated industriesKnowledge of healthcare data standards such as HL7, FHIR, and HIPAA complianceExperience with high-scale real time data processingFamiliarity with AI and ML system integration and model servingEvent-driven architectures, message queues, and async processingExposure to healthcare workflows, EHR systems, or telehealth platformsSeed or Series A startup experienceAdvanced degree in CS, engineering, or related fieldCompetitive compensation and meaningful equityOpportunity to build infrastructure impacting millions of patients globallyDirect collaboration with company leadership and healthcare expertsAccess to modern backend and AI technologiesBenefits reimbursement NxT Level
$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$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$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$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$180k - $226k
...part of a team that's reshaping the way value flows on the internet. We’re looking for an enthusiastic, self‑motivated Senior Backend Engineer to help us build the next generation of financial products. We are headquartered in SoHo in New York City, and this role...SeniorFull timeRemote workHome office- ...operators get patients the right care, at the right time, in the right setting. Role Description We’re seeking a Senior Backend Engineer with a passion for systems architecture, data modeling, and large-scale workflow orchestration . In this role, you’ll...SeniorWork at office
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- ...check the full description by scrolling below to find out the full requirements for this role. 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...SeniorFull timeRemote workWork from home
$160k - $240k
...leading investors, the company is expanding rapidly and looking for engineers who thrive in a fast-paced, high-ownership environment where... ...you apply promptly. About the Role Design and build backend services powering fintech and SaaS products for healthcare customers...SeniorWork at officeRemote work$200k - $275k
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$193.46k - $291k
...Collaborate closely with research, product, and blockchain engineering teams, working at the cutting edge of blockchain technology alongside... ...across the platform (15%). Establish and evangelize backend architectural standards, selection of tech stacks, and engineering...SeniorWork at officeLocal areaRemote workHome office- .... If banks and payment products were reinvented today, they would look like Fin. About the role We are looking for a Senior Backend Engineer to own the core systems that make this work. You will design and build the services that move real money, integrate with payment...SeniorWorldwide
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...and help change mental healthcare for the better. The Work Backend at Headway involves high-stakes logic. You’re building a... ...that give providers their time back. The Insurance Billing Engine: We apply AI pragmatically (blog) to reduce administrative burdens...SeniorFlexible hoursShift work- ...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...SeniorFlexible hours
$155k - $225k
...Senior Backend Engineer New York City (Hybrid, 3 days per week in office) | $155,000 - $225,000 + Equity + Benefits This is an opportunity to join a high-growth technology business that is redefining a traditional industry through a modern software platform...SeniorWork at office3 days per week- Chainlink Labs is seeking a Senior Software Engineer for the CCIP Protocol team. You will design and maintain services that coordinate fast, fault... ..., strengthening reliability and security. You will build backend services powering secure cross-chain message execution,...SeniorRemote job
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- Stripe, Inc. in New York seeks a backend engineer to help build the next generation of payment products at global scale. You will work across services and stacks, collaborating with cross-functional teams to deliver reliable, secure digital payments. With 2-10+ years of...Senior
- Rogo is building Wall Street's first true AI analyst. As a backend engineer, you will help create a category-defining product and scale it to massive enterprises, crafting fast APIs and robust systems. You will design REST and gRPC services, build infrastructure for crawling...Senior
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