252 api engineer jobs at 134 companies in Cornwall, NY
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Full Stack Developer (.NET API) - Senior Software Engineer
Stamford, Connecticut, United States
OnsiteFull Time
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
2mo
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Senior Software Engineer - MDM / RDM & API Development
Newark, New Jersey, United States
$104k-$172k/yr HybridFull Time
Senior software engineer with experience in MDM/RDM, API development, Python/Spark/Node.js, and Agile practices.
Python, Spark, Node.js, NoSQL, Relational Databases, SQS, Kinesis, REST, JSON, SOAP, XML, JDBC, MySQL, Git, Jenkins, AWS, CloudWatch, CodeDeploy
4d
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Staff Software Engineer - SaaS integrations,API Designs - Travel & Lifestyle Services
Phoenix or New York City
$144k-$256k/yr OnsiteFull Time
10+ YOE10+ years building and operating large-scale distributed systems, ownership of third-party/SaaS integrations, API design, resilience, data quality, security, and cross-team influence.
AWS
4w
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Senior Software Engineer - API Platform & Client Tooling
Bellevue or Livingston or New York City or San Francisco or Sunnyvale
$153k-$204k/yr OnsiteFull Time
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.
Go, gRPC, protocol buffers, Buf, ConnectRPC, Terraform Plugin Framework, Cobra, CWIC
4w
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Senior QA Automation Engineer – API Automation & Performance Testing
Parsippany, New Jersey, United States
$53k-$93k/yr HybridFull Time
Design and implement API automation and performance test strategies; experience with API testing, performance testing, test frameworks, Azure DevOps, Java, and mentoring peers.
Postman, REST Assured, JSON, Azure DevOps, JMeter, K6, Java, Ready API, SOAP UI, Playwright, Selenium, Grafana, Dynatrace
2w
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Chariot Labs Engineer
New York, New York, United States
HybridFull Time
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
2w
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Senior QA Automation Engineer – API Automation & Performance Testing
Parsippany, New Jersey, United States
$53k-$93k/yr HybridFull Time
Strong QA automation experience with API and performance testing using Postman, REST Assured, JMeter/K6; Java and JSON proficiency; Azure DevOps experience; SAFe Agile experience; strong communication and analytical skills.
Postman, REST Assured, JSON, REST APIs, Microsoft Azure DevOps, JMeter, K6, Java, Ready API, SOAP UI, Playwright, Selenium, Grafana, Dynatrace
2mo
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Solutions Engineer, Advertiser Solutions, Activate
Manhattan or New York
$112k-$128k/yr HybridFull Time
1+ YOEBachelor's degree in CS/Engineering (or related), 1+ years experience with Python/SQL and web apps, familiarity with ad tech platforms (Google Ad Manager, DV360, The Trade Desk, Amazon), APIs/SDKs, VAST/OpenRTB, plus strong communication and problem-solving skills.
Python, SQL, Google Ad Manager, DV360, The Trade Desk, Amazon, Mozilla Firefox, APIs, SDKs, VAST, OpenRTB, Tableau, Looker
1w
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12097 AI Engineer - Solutions & LLMOps
Newark, New Jersey, United States
$79k-$126k/yr HybridFull Time
2+ YOEBachelor's in CS/Engineering or related,2+ years in software/cloud/AI engineering,experience with Python,cloud platforms,APIs,DevOps practices,and compliance with DOE 10 CFR 810.
Python, Git, Azure DevOps, GitHub, Docker, Kubernetes, Azure OpenAI, Azure AI Services, AWS Bedrock, ServiceNow, SAP, Salesforce
3mo
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Senior Software Engineer
Hoboken, New Jersey, United States
$120k-$140k/yr HybridFull Time
Design and operate cloud-native data platforms and pipelines; strong data engineering, security, and software engineering skills; experience with Java, Python, AWS, datastores, CI/CD; technical leadership at senior level.
Web APIs, Java, Python, AWS, DynamoDB, Aurora DB, MongoDB, RDBMS, CI/CD
1w
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AI Product Engineer
San Mateo or New York
$200k-$300k/yr HybridFull Time
3+ YOE3+ years software engineering experience, strong full-stack skills (React/TypeScript, Python or Go), experience shipping developer-facing products, API and product ownership, high velocity and ownership.
React, TypeScript, Python, Go, Apache 2.0
1mo
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Staff Quality Assurance Engineer
Hoboken, New Jersey, United States
$130k-$150k/yr HybridFull Time
8+ YOE8+ years in quality engineering; hands-on testing of AI/LLM systems; automation with Playwright or similar; proficiency in JavaScript/TypeScript or Java; API testing, CI/CD integration; experience leading QE teams.
Playwright, JavaScript, TypeScript, Java, RAGAS, Cursor, Copilot, AWS, CI/CD
1mo
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Senior Integration Engineer
New York or Denver or United States or Europe
$125k-$160k/yr HybridFull Time
5+ YOE5+ years integration engineering; deep Azure Function Apps, Logic Apps Standard, Azure Service Bus, and API/Service Bus configuration; strong C#; CI/CD, IaC (Bicep), Snowflake desirable; active use of AI-assisted development; bachelor's degree required.
Azure Function Apps, Logic Apps Standard, Azure API Management, APIM, Azure Service Bus, Bicep, C#, Snowflake, LLMs, codegen, Claude, CI/CD, IaC, WDL
2w
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System Design Engineer - AI Cluster Software Engineer
Santa Clara or Austin or Secaucus or Markham
HybridFull Time
5+ YOE5+ years professional software development; proficiency with JavaScript/TypeScript and modern frontend frameworks, backend services/APIs, Linux, containers, CI/CD, cloud/on-prem deployment, IaC and scripting; Bachelors/Masters in CS or software/computer engineering.
JavaScript, TypeScript, React, Angular, Vue, Linux, perf, flamegraphs, nvprof, rocprof, eBPF, containers, CI/CD, ROCm, RCCL, Instinct GPUs, EPYC, Slurm, Kubernetes, Apptainer, Singularity, Ansible, Terraform, Python, bash, Lustre, BeeGFS, RDMA
1mo
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Agentic Solutions Engineer
Shelton, Connecticut, United States
HybridFull Time
3+ YOE3+ years backend/full-stack engineering with expert Python and strong TypeScript/React skills; experience building REST/GraphQL APIs, Django/DRF, Celery/Temporal, PostgreSQL, MCP protocol familiarity, and cloud (AWS/GCP).
Model Context Protocol (MCP), REST, GraphQL, Python, TypeScript, JavaScript, Django, Django REST Framework (DRF), React, React-Admin, FastAPI, Celery, Temporal, Pydantic, httpx, pytest, Node.js, PostgreSQL, Snowflake, WebSockets, SSE, OAuth2, JWT, OpenAPI, Swagger, Redoc, AWS, GCP, Lambda, Cloud Run, S3, GCS, Docker, GitHub Actions, Flowise, LangChain, Claude, Anthropic, GA4, Meta, Google
1mo
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Gen AI Infrastructure Engineer
Woodbridge or New York City or Atlanta or Boston or Chicago or Dallas or Delaware or Denver or Garden City or Cayman Islands or Greenwich or Houston or Los Angeles or Miami or Naples or Nevada or Palm Beach or San Diego or San Francisco or Seattle or Stuart or Washington
$160k-$200k/yr HybridFull Time
7+ YOE7+ years in DevOps/platform/cloud infrastructure engineering; strong AWS (IAM, CloudFormation, Lambda, API Gateway, VPC, CloudWatch, SSM, Secrets Manager, ECR); AWS CDK/CloudFormation/Terraform; CI/CD (Bitbucket/GitHub Actions, OIDC); container and datastore operations; security fundamentals.
AWS Bedrock, AgentCore, Lambda, API Gateway, AWS CDK, CloudFormation, Terraform, Bitbucket Pipelines, GitHub Actions, OIDC, IAM, VPC, CloudWatch, SSM, Secrets Manager, ECR, Neo4j, Neptune, Redis, Milvus, VectorDB
3w
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AI Orchestration Engineer
Quincy or Berwyn or Princeton or Clifton
$90k-$158k/yr OnsiteFull Time
3+ YOEBachelor's degree and 3+ years in data/AI engineering or related fields; experience with Python, SQL, large-scale data pipelines, RAG, MLOps/LLMOps, and AI governance in regulated environments.
Python, SQL, LangGraph, Semantic Kernel, CrewAI, AutoGen, LangChain, Databricks, Snowflake, Spark, Kafka, Delta Lake, Iceberg, Airflow, APIs, MLOps, LLMOps, RAG
1mo
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Test Engineer AVP
Whippany, New Jersey, United States
$190k-$195k/yr OnsiteFull Time
Design and execute automated test strategies for web, API, middleware and infra migrations using automation frameworks; strong knowledge of authentication, security, monitoring, and CI/CD integration.
Selenium, Playwright, Rest Assured, Java, Maven, Node.js, Kibana, Splunk, TeaLeaf, AppDynamics, Groovy, Jenkins, Chef, Docker, TWS, AMQ, Kafka, Ab Initio, TSYS, Oracle 19c, Tomcat, AEM
2mo
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Principal Backend Engineer
New York, New York, United States
$135k-$217k/yr HybridFull Time
10+ YOE10+ years backend/data platform experience; Python, API design, AWS serverless; Databricks/PySpark; multi-tenant SaaS and data contracts; leadership without formal management.
Python, SQL, Databricks, PySpark, AWS serverless, Lambda, API Gateway, S3, DynamoDB, IAM, CloudFormation, SAM, MCP, CLI/API, MCP integrations, Orchestration
1mo
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Development Engineer Software
Danbury, Connecticut, United States
$105k-$120k/yr OnsiteFull Time
5+ YOEBSc/MSc in CS/EE or related,5+ years leading embedded software projects,experience with RTOS,Matlab/Simulink,Redfish REST API and data center protocols,knowledge of OCP security standards.
RTOS, Matlab, Simulink, Redfish REST API, Open Compute Project (OCP)
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