377 api engineer jobs at 149 companies in Washington, NJ

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Senior API Engineer - Advisor I
Alpharetta or Omaha or Berkeley Heights
$90k-$158k/yr OnsiteFull Time
Fiserv
FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.
8+ YOE8+ years in Java/J2EE engineering, RESTful APIs, Spring, Azure, cloud–native services, CI/CD, DevSecOps, and cloud platforms; experience with relational/non-relational databases and messaging systems.
Java, J2EE, Spring, Spring Boot, REST API, Azure, OpenShift, PCF, Kafka, MQ, ESB, SQL, NoSQL, Splunk, CI/CD, DevSecOps
2w
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Senior QA Automation Engineer – API Automation & Performance Testing
Bridgewater, New Jersey, United States
$53k-$93k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
Design and execute API, functional, integration, regression, and performance tests; build API automation frameworks; strong Java and JSON skills; experience with Postman, REST Assured, JMeter/K6, and Azure DevOps.
Postman, REST Assured, JSON, Azure DevOps, JMeter, K6, Java, Ready API, SOAP UI, Playwright, Selenium, Grafana, Dynatrace
2mo
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Senior Software Engineer - MDM / RDM & API Development
Newark, New Jersey, United States
$104k-$172k/yr HybridFull Time
Prudential Financial
Prudential FinancialNYSE: PRU: Provides insurance, investment management, and retirement services globally.
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
1mo
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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
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
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
1mo
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Senior QA Automation Engineer – API Automation & Performance Testing
Parsippany, New Jersey, United States
$53k-$93k/yr HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
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
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Engineer II, Fire Protection
Houston or Allentown
OnsiteFull Time
Buckeye Partners
Buckeye Partners: Operates midstream energy infrastructure and logistics networks for petroleum.
7+ YOEBachelor's in Fire Protection Engineering; 7+ years in fire protection; knowledge NFPA/API/OSHA; travel up to 40%.
NFPA standards, API standards, OSHA regulations, Microsoft Office, CoPilot, Hydraulic calculations software, Design software
2w
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Forward Deployed Engineer
Titusville, New Jersey, United States
HybridFull Time
Authenticx
Authenticx: Software for analyzing healthcare customer interaction and conversation data.
Experience in solutions/implementation or integration engineering, strong SQL, API and webhook integration skills, ability to translate customer needs into technical designs, and strong communication with stakeholders.
SQL, APIs, webhooks, Salesforce, NICE, Genesys, Veeva
2w
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Senior QA Automation Engineer – API Automation & Performance Testing
Parsippany, New Jersey, United States
$53k-$93k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.
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
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Mechanical Engineer
South Plainfield, New Jersey, United States
OnsiteFull Time
Armstrong International
Armstrong International: A manufacturer of valve products focused on engineering, manufacturing, and research and development.
3+ YOEBachelor's in Mechanical Engineering, 3+ years engineering experience, SolidWorks proficiency, familiarity with welding/fabrication and materials, valve or industrial equipment experience preferred, knowledge of ASME/API a plus, must be authorized to work in the U.S.
SolidWorks
1w
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12097 AI Engineer - Solutions & LLMOps
Newark, New Jersey, United States
$79k-$126k/yr HybridFull Time
Public Service Enterprise Group
Public Service Enterprise GroupNYSE: PEG: Providing energy, utility, and power generation services.
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
Pearson
PearsonLondon Stock Exchange: PSON: Global education providing learning materials and assessments.
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
4d
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Mechanical Engineer
Edison, New Jersey, United States
$138k-$207k/yr OnsiteFull Time
LyondellBasell
LyondellBasellNYSE: LYB: Manufactures chemicals, polymers, and fuels for various industrial sectors.
5+ YOEBachelor's degree in mechanical engineering or applicable discipline; 5–10 years in rotating equipment design, installation, and maintenance in process industries; expertise in machinery, reliability, diagnostics, and safety.
SAP, Microsoft Office, Meridium, ASME, API, ANSI
1mo
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Staff Quality Assurance Engineer
Hoboken, New Jersey, United States
$130k-$150k/yr HybridFull Time
Pearson
PearsonLondon Stock Exchange: PSON: Provide educational materials, assessments, and digital learning services globally.
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
16h
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Advanced Mechanical Design Engineer
Allentown, Pennsylvania, United States
OnsiteFull Time
Honeywell
HoneywellNASDAQ: HON: Manufactures aerospace products, building technologies, and industrial control systems.
5+ YOEBachelor's degree in mechanical engineering or related technical discipline, 5 years of rotating equipment engineering experience, mechanical engineering expertise, analytical skills, and knowledge of turbomachinery and industry standards.
API, ASME, ANSI, ASTM, IEC, NEC, P&ID, 3D, HAZOP
2w
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System Design Engineer - AI Cluster Software Engineer
Santa Clara or Austin or Secaucus or Markham
HybridFull Time
AMD
AMDNASDAQ: AMD: Designs and manufactures computer processors and graphics technology.
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
2mo
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Trading, Investment & Optimization - QuantAI Engineer (Hybrid)
Seattle or Chicago or Los Angeles or Atlanta or Houston or Arlington or San Francisco or Morristown or Boston or Dallas or San Diego or New York
HybridFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
3+ YOEBachelor's in CS/engineering or related field; 3+ years in client-facing tech delivery; strong backend/API/full-stack or ML workflows; experience with enterprise hardening and deployment.
Electron, FastAPI, Docker, cloud services, evaluation tooling, agent orchestration frameworks, MCP-style integrations, Python, TypeScript, JavaScript
2mo
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Cloud Data Engineer
Jersey City or United States
OnsiteFull Time
EXL
EXLNASDAQ: EXLS: Provides data analytics and digital operations solutions to businesses.
6+ YOE6+ years data engineering experience with AWS (Glue, Redshift, S3, Lambda, EMR/Spark, Kinesis, Athena, RDS, API Gateway), Python and SQL proficiency, experience with data lakes/warehouses, ETL/ELT, DevOps/CI/CD, and leadership/mentoring skills.
AWS, Glue, Redshift, S3, Lambda, EMR/Spark, Kinesis, Athena, RDS, API Gateway, Python, SQL, Shell, Scala, CloudFormation, Terraform, CI/CD
2mo
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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
Bessemer Trust
Bessemer Trust: Wealth management and family office services for affluent clients.
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
1mo
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Full Stack AI Engineer
Princeton, New Jersey, United States
$94k-$114k/yr OnsiteFull Time
Bristol Myers Squibb
Bristol Myers SquibbNew York Stock Exchange: BMY: Develops and distributes innovative medicines for serious diseases.
5+ years software engineering experience, Bachelor's in CS or related, hands-on Generative/Agentic AI, Python/React proficiency, knowledge of cloud, APIs, ML frameworks, strong communication and leadership.
Python, Java, Node JS, React JS, Salesforce, OpenAI, AWS Bedrock, LangChain, LlamaIndex, Google ADK, TensorFlow, PyTorch, FastAPI, SQL, NoSQL, AWS Lambda, Amazon S3, DynamoDB, SageMaker, REST APIs, MCPs, JSON, XML, TypeScript
3w
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AI Orchestration Engineer
Quincy or Berwyn or Princeton or Clifton
$90k-$158k/yr OnsiteFull Time
State Street
State StreetNYSE: STT: Provides investment servicing and management to institutional investors.
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