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2,109 api engineer jobs at 940 companies in New York

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API Developer (US)
New York City or Austin or Dallas or Chicago or Seattle
$90k-$150k/yr HybridFull Time
EdgeQ Technologies Private Limited
EdgeQ Technologies Private Limited: A private U.S. staffing and recruitment firm connecting IT, healthcare, and other professionals with employers.
3+ YOEBachelor's degree in Computer Science or related field; 3-10 years API development experience; proficiency in Python, Java, JavaScript/Node.js, or C#; REST APIs, OAuth 2.0, JWT, SQL, Agile/Scrum, Git, Postman.
REST, GraphQL, Swagger, OpenAPI, OAuth 2.0, JWT, SQL, Git, Postman, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud
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3w
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Associate - API Sales Engineer
New York City, New York, United States
$90k-$110k/yr HybridFull Time
Capital Markets Gateway
Capital Markets Gateway: Private fintech providing ECM data and workflow tools to buy-side and sell-side financial firms.
3+ YOERequires 3+ years in sales or solutions engineering, Python, Excel, SQL, REST and GraphQL API knowledge, technical client communication, and a bachelor's degree in finance, economics, computer science, engineering, or related field.
Python, Microsoft Excel, SQL, REST, GraphQL, CRM
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2w
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API Engineer I - Credit
Alpharetta or Phoenix or Costa Mesa or Stamford or Lake Mary or Orlando or Chicago or Kansas City or New York or Charlotte or Cincinnati or Canton or West Chester or Dallas
$75k-$120k/yr HybridFull Time
Synchrony
SynchronyNYSE: SYF: Public U.S. consumer financial services providing credit cards, financing, and banking products to consumers and businesses.
2+ YOEBachelor's degree in computer science or related field, or high school diploma with 2 years Java development; legal authorization to work in the U.S. without sponsorship; willingness to take drug test, background check, and fingerprints; 18+ years old.
Java, Spring, Spring Boot, Jira, Bitbucket, Git, JSON, REST, XML
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3w
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Senior Automation & API Engineer and Marketing Stuff Lover
Arizona or Colorado or Florida or Georgia or Illinois or Maryland or Michigan or North Carolina or New Jersey or New York or Pennsylvania or Texas or Virginia or Washington
RemoteFull Time
How to Manage a Small Law Firm
How to Manage a Small Law Firm: Private law-firm management providing fractional executive services to solo and small law-firm owners.
Expertise in REST APIs, JSON, webhooks, OAuth 2.0, API authentication, and integration architecture; experience with AI agents, agentic automations, Replit, Lovable, GoHighLevel, and AI-powered development; creativity and problem-solving skills.
Replit, Lovable, GoHighLevel, Hermes, REST APIs, JSON, Webhooks, OAuth 2.0, Git, OpenAI API, Claude, Anthropic, MCP, RAG, Python, JavaScript, TypeScript, Node.js, SQL, PostgreSQL, Supabase, GitHub, Make, Zapier, n8n, Cloudflare, AWS, Google Cloud, Twilio, Stripe
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1mo
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Software Engineer, API Frontiers
New York City or San Francisco
$266k-$445k/yr HybridFull Time
OpenAI
OpenAI: AI research and deployment focused on beneficial AGI.
5+ YOE5+ years building and operating backend services or developer-facing APIs, with distributed systems, concurrency, asynchronous execution, observability, profiling, and cross-functional collaboration experience.
Responses API, Rust, WebSockets
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1w
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Senior Software Engineer, API Systems
New York City, New York, United States
$125k-$180k/yr OnsiteFull Time
Book of the Month
Book of the Month: Private U.S. book subscription selecting and shipping new fiction to members each month.
6+ YOE6+ years production code experience; Node.js, TypeScript, relational databases (MySQL/PostgreSQL), REST APIs, test suites, Redis/Kafka/SQS; solution-oriented, ownership, teamwork.
Node.js, TypeScript, MySQL, PostgreSQL, Redis, Kafka, SQS
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1mo
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Sr. Software Engineer – API & Auth Platform
New York City, New York, United States
$170k-$195k/yr HybridFull Time
Betterment
Betterment: Private U.S. fintech providing automated investing, savings, retirement, and financial-wellness services to consumers, advisors, and small businesses.
Experience building shared API platforms (ideally GraphQL), modern auth patterns (OAuth 2.0, OIDC, passkeys), production operations, fullstack development with server-side languages, and collaboration across teams.
GraphQL, OAuth 2.0, OIDC, Ruby, Java, TypeScript, C#, Python
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2d
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Software Engineer – API Services, Core Banking
Buffalo, New York, United States
$81k-$135k/yr HybridFull Time
M&T Bank
M&T BankNYSE: MTB: A diversified financial services providing banking and wealth management.
1+ YOEAssociate's degree with 3+ years systems analysis/application development, or Bachelor's with 1+ year, or 5 years combined education/experience; proficiency in Java or comparable language; Spring Boot or comparable framework; backend/API/cloud experience.
Java, Spring Boot, Microsoft Azure, C#, .NET
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2mo
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Solution Engineer
New York City or Buenos Aires or Munich or Copenhagen or Odense or Lisbon
HybridFull Time
Usercentrics
Usercentrics: German consent-management SaaS helping businesses collect, manage, and document user consent across websites and apps.
2+ YOERequires a software engineering background, 2+ years deploying production code, API integration and solution design experience, customer-facing communication skills, cross-functional experience, and JavaScript, HTML, CSS, and API expertise.
JavaScript, HTML, CSS, API, AI
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2mo
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Solutions Engineer
New York City, New York, United States
$200k-$260k/yr HybridFull Time
Harmony
Harmony: N AI enterprise service-management platform resolving organizations’ IT, HR, finance, procurement, and legal requests.
5+ YOERequires 5+ years in solutions engineering, software engineering, technical consulting, or similar hands-on technical work, with APIs, cloud infrastructure, networking, scripting, debugging, and customer implementations.
Slack, Microsoft Teams, API, Claude Code, Codex, LLM
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8h
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Partner Engineer
Austin or New York City or San Francisco or United States
$160k-$195k/yr RemoteFull Time
Thatch
Thatch: Private fintech and healthtech helping employers provide personalized health benefits through ICHRA administration.
5+ YOE5+ years in partner engineering, solutions engineering, or technical integrations; strong API understanding; experience owning complex technical problems; customer-facing skills; process building; U.S. remote work.
API, Finch, Merge
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1mo
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Lead Solutions Engineer - Enterprise
New York City, New York, United States
$200k-$280k/yr OnsiteFull Time
Bilt Rewards
Bilt Rewards: Fintech membership and payments platform helping renters and homeowners earn rewards on housing and neighborhood spending.
7+ YOERequires 7+ years in solutions engineering, architecture, sales engineering, or product engineering; strong API, authentication, data-flow, and architecture expertise; enterprise customer-facing communication skills.
API
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2mo
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Deployment Engineer
Bengaluru or New York City or Santa Barbara
RemoteFull Time
Avoca
Avoca: AI conversational-engagement platform helping home-service businesses answer leads, book jobs, and grow revenue.
2+ YOERequires 2+ years of software engineering experience, Python proficiency, systems and API expertise, cloud familiarity, production debugging skills, and strong technical communication. AI experience preferred.
Python, TypeScript, JavaScript, APIs, SQL, NoSQL, AWS, GCP, Azure, LLMs, vector databases
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1w
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Senior Software Engineer - Media API Platform
New York City, New York, United States
$160k-$240k/yr OnsiteFull Time
Bloomberg
Bloomberg: Global financial software, data, and media.
5+ YOE5+ years building and running backend services in production; expertise in JavaScript/TypeScript, Java, Kotlin, or Python; distributed systems knowledge; AI-assisted engineering tools; debugging production issues; strong collaboration and mentoring skills.
TypeScript, Node, Java, Kotlin, Python, GraphQL, Apollo Federation, MySQL, PostgreSQL, OAuth, JWT, AWS, Docker
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2mo
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Integrations Engineer
New York, New York, United States
$165k-$175k/yr HybridFull Time
Riskified
RiskifiedNYSE: RSKD: Public AI-powered ecommerce fraud-prevention software helping merchants reduce fraud, chargebacks, and policy abuse.
4+ YOE4+ years in integrations/solution engineering, US work authorization required, strong API integration experience, SQL proficiency, ability to read logs and source code, client-facing technical project experience.
SQL, APIs, SDKs
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2mo
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Staff Engineer
New York City, New York, United States
$215k-$270k/yr OnsiteFull Time
Axle
Axle: AI-native insurance clearinghouse automating property and casualty data workflows for businesses.
6+ YOERequires 6+ years building complex high-scale systems, API design, production AI/ML deployment, end-to-end project ownership, and experience with observability and engineering processes; fintech or data aggregation is a plus.
API, LLM, AI/ML
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2mo
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Software Engineer L2-Messaging API
United States or San Francisco or Oakland or San Jose or Colorado or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or Vermont or Washington, D.C. or New York or New Jersey or Washington or California
$117k-$172k/yr RemoteFull Time
Twilio
TwilioNYSE: TWLO: Cloud communications platform for building personalized customer experiences.
Bachelor's or master's degree in computer science or equivalent experience; Go or Java experience; strong communication skills; ability to join an on-call rotation. NoSQL, AWS, Docker, Kubernetes, and Temporal preferred.
Go, Java, NoSQL, DynamoDB, AWS, Docker, Kubernetes, Temporal
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3mo
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Chariot Labs Engineer
New York, New York, United States
HybridFull Time
Chariot
Chariot: US fintech helping nonprofits receive and process donor-advised fund gifts and grant payments.
3+ YOE3+ years engineering or technical RevOps experience; Python, JS, SQL and API proficiency; experience building and operating agent-based systems (OpenClaw, Claude Managed Agents, Claude Code); strong ownership, product judgment, and ability to ship prototypes to production.
OpenClaw, Claude Managed Agents, Claude Code, Python, JS, SQL, APIs
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2mo
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Forward Deployed Engineer
Boston or New York City
OnsiteFull Time
OnCorps
OnCorps: Agentic AI platform serving asset managers and fund administrators with investment reconciliation, reporting, and pricing tools.
7+ YOERequires 7+ years in solutions or forward-deployed engineering, JSON/YAML, REST APIs, Python or TypeScript, SQL, databases, data pipelines, Databricks, CI/CD, and strong communication skills.
JSON, YAML, REST API, Python, TypeScript, SQL, Databricks, Pandas, PySpark, AWS, Docker, Kubernetes
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2mo
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Forward Deployed Engineer
New York City, New York, United States
FieldFull Time
Nevis
Nevis: AI wealth-management platform helping U.S. financial advisors automate administrative workflows and client-service tasks.
3+ YOERequires 3+ years in forward deployed, solutions engineering, technical implementation, or similar customer-facing engineering; Python, SQL, APIs, systems, LLMs, agentic tooling, strong communication, and willingness to travel onsite.
Python, SQL, APIs, LLMs, Claude, ChatGPT, Cursor
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