2,203 api engineer jobs at 926 companies in Yorktown Heights, NY
1mo
Save
Mark Applied
Hide
1mo
Sr Java API Developer - New York
New York, New York, United States
$40k-$140k/yrOnsiteFull Time
Photon Interactive: Full-service digital agency driving AI-led digital transformation.
5+ YOE5+ years Java backend experience, proficiency with Java 11/17, Spring ecosystem, RESTful APIs, relational and NoSQL databases, API security, CI/CD, and testing frameworks.
Java 11, Java 17, Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Hibernate, REST, OpenAPI/Swagger, JSON, GraphQL, PostgreSQL, MySQL, Oracle, MongoDB, Cassandra, Apache Kafka, RabbitMQ, Maven, Gradle, JUnit, Mockito, REST Assured, Jenkins, GitHub Actions, GitLab CI, Microsoft Azure DevOps, Docker, Kubernetes, Git, Redis, Hazelcast, Prometheus, Grafana, ELK Stack, Splunk
Nayya: AI-powered employee benefits and wealth platform helping employers and workers understand and use health and financial benefits.
6+ YOE6+ years building backend services and public/partner-facing APIs; deep API design and distributed systems expertise; production experience with Python, Go, Node, Typescript, or Ruby on Rails on AWS; mentoring and on-call experience.
The Guardian Life Insurance Company of America: Mutual insurer providing life, disability, dental, and workforce benefits.
10+ YOE5+ Mgmt10+ years in software engineering or platform engineering, 5+ years leading teams, Bachelor's in CS/Engineering or equivalent, expertise in API design, microservices, security, integration patterns, and experience modernizing legacy systems.
New York City or San Francisco or United States or Canada or United Kingdom
$168k-$330k/yrHybridFull Time
Ramp: Finance automation platform for business.
5+ YOE5+ years backend engineering, experience building APIs/platforms, hands-on with Python, Temporal, and Postgres, familiarity with AI coding agents, strong ownership and developer-experience focus.
Full Stack Developer (.NET API) - Senior Software Engineer
Stamford, Connecticut, United States
OnsiteFull Time
Information Services GroupNasdaq: III: Global AI-centered technology research and advisory firm serving commercial and public-sector clients.
6+ YOEBachelor's in computer science or related field, 6+ years full-stack experience with .NET Core API, Angular and SQL Server, strong C#/Web API and front-end (HTML/CSS/JavaScript) skills, REST API experience, communication and leadership abilities.
Angular, .NET Core, SQL Server, C#, Web API, HTML, CSS, JavaScript, Microsoft Azure, Git
OpenAI: AI research and deployment focused on beneficial AGI.
7+ YOE7+ years of professional engineering experience; experience building SDKs; design and implement SDKs for multiple languages; collaborate across teams.
United States or New York City or Dallas or Austin or Houston or Chicago or Nashville or Miami or Atlanta
$140k-$160k/yrRemoteFull Time
TheGuarantors: Fintech providing insurance-backed lease guarantees and renters insurance to renters and multifamily operators.
3+ YOE3+ years building backend services with Go/Java/Python/C#; strong API design, SQL/PostgreSQL, cloud (AWS/Azure/GCP/OCI) and Terraform experience; professional software engineering experience and strong communication/system design skills.
Member of Technical Staff (Software Engineer, API Platform)
San Francisco or New York City
$220k-$405k/yrOnsiteFull Time
Perplexity AI: Private American software offering an AI-powered conversational search engine with real-time web answers and citations.
5+ YOE5+ years backend engineering with Python, Go, or Rust; strong high-traffic API design, AWS and Kubernetes experience, CI/CD and DevOps fluency; experience with AI APIs a plus.
New York City or Buenos Aires or Munich or Copenhagen or Odense or Lisbon
HybridFull Time
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.
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
Tabbed: Mobile checkout and guest intelligence platform built for restaurants where hospitality is the priority.
5+ YOE5+ years software engineering experience; strong TypeScript/Node.js and system design skills; experience with cloud, APIs, payments or POS integrations; independent ownership and strong execution.
Senior Software Engineer - API Platform & Client Tooling
Bellevue or Livingston or New York City or San Francisco or Sunnyvale
$153k-$204k/yrOnsiteFull Time
CoreWeaveNasdaq: CRWV: Specialized cloud provider for large-scale AI and machine learning.
Production Go experience, API design and versioning, client tooling/SDK/CLI or provider work, code-generation or compiler/tooling experience preferred, cross-team collaboration and mentorship.
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.
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.
GoogleNASDAQ: GOOG, GOOGL: Global technology specializing in internet-related services and products.
2+ YOEBachelor's degree or equivalent practical experience; 2 years of software development and security software experience; proficiency in Go, Java, or Python preferred.
Quantifind: Private SaaS helping financial institutions and government agencies detect financial crime with AI.
3+ YOE3+ years customer-facing technical/support/consulting experience; experience implementing SaaS in enterprise environments; familiarity with APIs, SQL, Jira, GitHub, CSV/JSON; BS/MS in CS/math/engineering or equivalent.
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.
Senior Backend Engineer (Python/API) - Hybrid NYC- Blueflame AI
New York City, New York, United States
$141k-$248k/yrHybridFull Time
Blueflame AI: Private global SaaS providing M&A workflow, virtual data room, intelligence, and AI solutions to dealmakers.
8+ YOE8+ years professional software engineering experience, expert Python, production REST API design, system architecture and distributed systems experience, MongoDB and Redis, NYC-based or willing to relocate, able to work hybrid 3 days/week.