298 back end engineer jobs at 169 companies in Brooklyn, NY
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3mo
Sr Backend Engineer
San Francisco or New York
$167k-$219k/yrHybridFull Time
Quizlet: American private education technology providing digital study tools for students, teachers, professionals, and lifelong learners.
4+ YOE4+ years backend or data engineering experience; strong SQL and data warehouse experience; proficiency in Python/Java/Scala; Elasticsearch/OpenSearch experience; experience building production data pipelines and backend services.
Paxos Labs: Builds enterprise infrastructure for financial enterprises' branded stablecoins, yield strategies, and structured onchain products.
6+ YOE6+ years building and operating production backend systems; experience with financial correctness systems; understanding of exchange market structure; ability to own systems end-to-end.
Gondor: DeFi lending protocol for prediction-market traders borrowing against Polymarket positions.
Experience building liquidation engines, oracles, and margin trading infrastructure; deep understanding of DeFi lending protocols; strong familiarity with smart contract security and exploits.
Lakeview Loan Servicing: Private mortgage servicer and lender that manages residential loans and servicing rights for U.S. homeowners.
3+ YOE3-5+ years building production backend systems; strong software engineering fundamentals; experience with APIs, event-driven architectures, SQL, cloud platforms (AWS/GCP/Azure), CI/CD, and AI/LLM capabilities.
Chariot: US fintech helping nonprofits receive and process donor-advised fund gifts and grant payments.
4+ YOE4+ years software development experience, 2+ years backend development, proficiency with Go, Node, Docker, Terraform, Kubernetes, Postgres, REST and gRPC; bachelor’s in a technical field preferred.
El Segundo or Washington or Palo Alto or San Francisco or Austin or New York City
$80k-$210k/yrOnsiteFull Time
Gallatin AI: Defense technology providing AI-powered logistics decision-support software to military and allied defense organizations.
Proficiency in Python, Node.js, TypeScript, or Java; API design (REST, GraphQL); relational and NoSQL databases; cloud (AWS, GCP, Azure); Docker, Kubernetes; infrastructure as code; testing; U.S. citizenship required; ability to obtain security clearance.
San Francisco or New York City or Austin or Seattle
$175k-$300k/yrOnsiteFull Time
Fluidstack: Building and operating civilization-scale data center infrastructure for AI.
Experience building production services, observability, API and control-plane design, API-first infrastructure, incident response/pager duty, and familiarity with AI tooling and distributed systems.
Denver or Seattle or Washington or San Francisco or Los Angeles or Arvada or San Francisco or Nashville or Denver or Santa Fe or New Orleans or San Diego or Bozeman or New York City
$120k-$180k/yrHybridFull Time
Quindar: Automation First. Mission Ready. Mission management software delivering a common operating picture, system-of-systems integration, and resiliency across commercial and government space missions.
3+ YOERequires Python backend development, AWS, GraphQL, Docker, Terraform, APIs, Kubernetes, Git, a computer science bachelor's degree, and 3+ years of experience; U.S. person status and security clearance eligibility required.
Kitchener-Waterloo or New York City or San Francisco
OnsiteFull Time
Cambio: AI-powered commercial real estate operations platform helping owners, investors, and operators manage data, compliance, retrofits, and decarbonization.
Experience with Python web development, preferably Django and Ninja; computer science and algorithm fundamentals; research and debugging skills; independent problem-solving and understanding of technical trade-offs.
Nolla Health: AI-guided digital-health offering dermatological skincare and telehealth services.
6+ YOE6+ years building and operating production backend systems; experience at early-stage startups; strong judgment in APIs, data models, databases, and cloud infrastructure; practical security and reliability understanding; effective use of AI coding tools.
Stripe: Financial infrastructure platform for online businesses and enterprises.
2+ YOERequires 2–10+ years of software engineering experience, strong coding and collaboration skills, autonomy, and interest in backend engineering across technologies and stacks.
Tetrix: AI investment intelligence platform for institutional investors in private markets.
10+ YOERequires 10+ years of backend engineering experience using Python, strong technical leadership, complex system architecture, engineer mentoring, and best-practice development in fast-paced environments.
FiservNYSE: FI: Global leader in financial services technology solutions.
4+ YOE4+ years experience with Java, Python, RESTful APIs, JDBC/Hibernate/JPA, messaging (Kafka, MQ, JMS), Spring Boot, microservices, AWS, MySQL, DynamoDB, IAM, CI/CD tools; bachelor's degree in CS/IT/IS or equivalent; valid U.S. work authorization without sponsorship.
Town: Town is a privately held applied-AI software building assistants that help people create and use software at work.
Experienced backend engineer with production experience scaling distributed systems, LLM/agent infrastructure, workflow orchestration, and defining technical direction in fast-moving startups.
Hera: Private Medicare-covered care-management coordinating care for older adults and their families.
Experienced backend engineer with strong systems design, cloud and database experience, API and SDK development, security/compliance awareness, and ownership in early-stage environments.
Wiz: Google-owned cloud and AI security platform helping organizations secure code, cloud environments, and runtime.
8+ YOERequires 8+ years of backend engineering experience, cloud platform and microservices expertise, database and message queue experience, CI/CD knowledge, and a bachelor's degree in a related field.
FOMO Labs: Private fintech operating a social-first crypto trading app for consumers on web and mobile.
6+ YOEStaff-level engineer with 6+ years of experience, autonomous execution skills, and crypto development experience; Solana or EVM experience preferred. React experience and personal crypto trading are pluses.
Oxbridge Health: Episode-based health insurance for self-funded employers, providing guaranteed prices and broad provider choice.
7+ YOERequires 7+ years of backend engineering experience, expert AWS serverless and Python skills, distributed systems expertise, REST API development, databases, CI/CD, and technical leadership.