844 api specialist jobs at 528 companies in United States

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API Integration Specialist
Rosemead, California, United States
$37-$43/hr OnsiteFull Time
Cathay Bank
Cathay BankNASDAQ: CATY: Commercial bank providing financial services to individuals and businesses.
2+ YOERequires 2+ years of API development or systems integration experience, MuleSoft Anypoint Platform expertise, API specifications using RAML, Swagger, OpenAPI, or Postman, and API security knowledge. A computer science degree is preferred.
MuleSoft Anypoint Platform, MuleSoft API Manager, MuleSoft Exchange, RAML, Swagger, OpenAPI, Postman, Azure DevOps, Java, Python, JavaScript, JSON, XML
1mo
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API Support Specialist
United States
$70k-$90k/yr RemoteFull Time
Astra
Astra: Fintech payments infrastructure providing APIs and automation for businesses to move money instantly across payment rails.
1+ YOE1-3 years technical/API support experience, ability to read API docs/logs, troubleshoot REST/webhook auth issues, prioritize tickets, strong written communication, and basic SQL/Postman familiarity.
REST, webhooks, OAuth, Postman, SQL, Python, JavaScript, Zendesk, Intercom
3w
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Senior API Specialist (Remote)
United States
$104k-$134k/yr RemoteFull Time
ezCater
ezCater: Workplace food platform connecting organizations to restaurants for corporate catering and employee meal programs.
Strong API integration support experience; GraphQL or REST, JSON/XML, logs, webhooks, structured troubleshooting, escalations, cross-functional collaboration, and excellent written and verbal communication.
GraphQL, REST, JSON, XML, Zendesk, Slack, Postman, SumoLogic, Sigma, SQL, Python, HMAC
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API Documentation Specialist
United States
RemoteFull Time
DecisionPoint Corporation
DecisionPoint Corporation: Federal IT and management services for government agencies.
5+ YOETop Secret clearance, Bachelor’s degree, 5+ years technical/API documentation experience, proficiency with Swagger/OpenAPI, accessible (508) documentation, and Git-based workflows.
Swagger, OpenAPI, Redoc, Postman, Git
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Quality Specialist, Peptide API & Development
Menlo Park, California, United States
$95k-$115k/yr OnsiteFull Time
Hims & Hers
Hims & HersNYSE: HIMS: Publicly traded U.S. telehealth platform connecting consumers with licensed providers and personalized prescription and wellness care.
2+ YOE2–5+ years quality or GMP-regulated manufacturing/lab/document control experience; working knowledge of cGMP and Good Documentation Practices; bachelor’s degree preferred in chemistry/biology/biochemistry/pharmaceutical sciences; strong organization and documentation skills.
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Testing Specialist (DAAS API GW)
Washington, District of Columbia, United States
RemoteFull Time
Horizon Industries
Horizon Industries: Private IT and management consulting firm delivering modernization, cybersecurity, and AI-enabled solutions to federal agencies.
5+ YOE5+ years software testing experience, ability to design/execute tests, prepare scripts and test data, analyze security and test results; requires DoD 8570 IAT Level I and secret clearance.
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Java Technical Specialist - RESTful API, Spring Boot (139609)
United States
OnsiteFull Time
HCLTech
HCLTechNSE: HCLTECH: Supercharging progress through technology, engineering, and digital transformation.
Java/J2EE, JSP, servlets, JPA, Hibernate, RESTful APIs, Spring Boot, microservices, scalable architecture, SQL/NoSQL databases, ORM, DevOps, CI/CD, and technical leadership skills.
Java, J2EE, JSP, Servlets, JPA, Hibernate, RESTful APIs, Spring Boot, SQL, NoSQL, ORM, DevOps
3w
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Procurement Specialist / Senior Procurement Specialist – API Manufacturing
Coventry, Rhode Island, United States
$75k-$120k/yr OnsiteFull Time
Pharmaron Manufacturing Services (US)
Pharmaron Manufacturing Services (US)Shenzhen Stock Exchange / The Stock Exchange of Hong Kong: 300759.SZ / 3759.HK: Public Chinese CRO/CDMO providing integrated drug research, development, and manufacturing services to pharmaceutical, biotech, and medical-device companies.
5+ YOERelevant procurement experience required: 5–8 years with a bachelor's degree, 8–10+ with an associate's degree, or 10+ with a high school diploma/GED. Manufacturing materials, supplier, Excel, and procurement-system experience preferred.
Microsoft Excel, ERP
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API Developer
Huntsville, Alabama, United States
OnsiteFull Time
Interactive Process Technology LLC
Interactive Process Technology LLC: Service-disabled veteran-owned IT contractor delivering process automation, software, cloud, cybersecurity, and enterprise solutions to federal organizations.
10+ YOEBachelor's degree, 10 years experience in AI/ML governance or policy, active Secret clearance, DoD 8570 Level II/III, software scripting (Python/JavaScript), AI security and policy development skills.
Python, JavaScript, TensorFlow, PyTorch, LangChain, NIST AI RMF, AWS, Azure, GCP
2w
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Technical Product Specialist (TPS) - Signals & API
London or Singapore or Japan or China or United States or Los Angeles or New York City or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
OnsiteFull Time
TikTok
TikTok: Short-form mobile video and social media platform.
2+ YOEBachelor's degree in Computer Science or related technical field, technical implementation experience, digital advertising or customer-facing technical experience, analytical problem-solving, and support ticketing platform experience.
HTML, CSS, JavaScript, SQL, XML, HTTP, Jira, Zendesk, Freshdesk, Salesforce
2w
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API/CLIENT SOFTWARE TECHNICAL IMPLEMENTATION
United States
$26-$29/hr RemoteFull Time
Authenticom
Authenticom: Private automotive data connectivity helping dealerships, OEMs, and vendors securely manage, cleanse, and share data.
2+ YOERequires 2+ years in customer or technical support, 1+ year of API configuration, high school diploma, Excel skills, troubleshooting ability, and experience with software systems, integrations, and remote work.
Postman, Swagger/OpenAPI, Salesforce, Microsoft Excel, Microsoft Office, Google Workspace, Dealer Management System (DMS), REST, webhooks, CDK, Reynolds & Reynolds, Dealertrack, Tekion, CRM, SaaS
2w
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Quality Engineer Specialist Senior (Mainframe/SQL/API QE)
Pittsburgh, Pennsylvania, United States
OnsiteFull Time
PNC Financial Services Group
PNC Financial Services GroupNYSE: PNC: Diversified financial services providing banking and investment solutions.
3+ YOEBachelor's degree and 3+ years of relevant industry experience. Requires software testing, test planning, SQL, API testing, quality assurance, analytical thinking, and technical documentation skills.
BlueZone, Java, SQL, Jira, Cucumber, API, Kanban
2mo
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Backend Developer (Data Layer / API Specialist)
United States
$75k-$110k/yr RemoteFull Time
Blue Acorn iCi
Blue Acorn iCi: Digital experience consulting firm helping global brands improve customer experiences, commerce, and customer intelligence.
Strong backend development experience with Java/Python/Node.js/Go, REST/GraphQL APIs, SQL/NoSQL databases, data pipelines/ETL, cloud platforms (AWS/Azure/GCP), CI/CD, containerization, and observability.
Java, Python, Node.js, Go, REST, GraphQL, PostgreSQL, MySQL, MongoDB, DynamoDB, OpenAPI, Swagger, AWS, Azure, GCP, ETL/ELT, CI/CD, Git, Docker, Kubernetes, Kafka, Kinesis, Pub/Sub
3w
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Product Specialist, New Business
New York, New York, United States
$81k-$110k/yr OnsiteFull Time
GLG
GLG: Private expert network providing financial and professional information services to investors, companies, and consultants.
Commercially minded product specialist with client-facing skills, technical fluency in APIs, MCP, alternative data, AI workflows, RAG, embeddings, and data ingestion for financial services clients.
API, MCP, SFDC, Survey Data Feeds, Call API Feeds, Moderated AI Calls, RAG, Model Context Protocol, embeddings
1w
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QA & Technical Documentation Specialist
Hackensack, New Jersey, United States
$55k-$75k/yr OnsiteFull Time
Bluu, Inc.
Bluu, Inc.: Private payments and POS serving restaurant and retail merchants with hardware, software, ordering, and management solutions.
Bilingual Korean and English QA specialist with software testing, POS or payment systems, Windows or Android testing, test case and technical documentation experience, basic SQL and API testing knowledge.
Windows, Android, SQL, API, Agile, Scrum, EMV, NFC
5d
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Implementation Specialist II (Must have Energy/Utility background)
United States
$80k-$90k/yr RemoteFull Time
VertexOne
VertexOne: Private SaaS provider of cloud billing and customer-engagement software for utilities and energy retailers.
4+ YOERequires utility or utility consulting experience, CIS billing or ERP knowledge, and 4+ years as a Business Analyst or Implementation Specialist. SQL, project methodologies, relational databases, APIs, and documentation experience preferred.
SQL, Jira, Microsoft Office, Microsoft Visio, Web APIs
6d
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Automation Specialist
Carlsbad, New Mexico, United States
FieldFull Time
Danos
Danos: Family-owned oilfield services provider for the energy industry.
7+ YOERequires 7+ years as an Automation Specialist, a 2-year instrumentation or automation technology degree or equivalent experience, advanced PLC, HMI, instrumentation, communications, MS Office, and Windows skills.
PLC, RTU, HMI, SAP, Microsoft Office, Microsoft Word, Microsoft Excel, Microsoft Outlook, Windows Operating Systems, function block, ladder logic, structured text, API, NEC, NFPA, IEEE, ISA, CMMS, MVR
1w
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Digital Financial Assets Systems Integration Specialist
Sacramento County, California, United States
$7k-$11k/mo HybridFull Time
State of California
State of California: The constitutional government of the U.S. State of California.
2+ YOESupports secure interfaces, APIs, file transfers, system administration, troubleshooting, documentation, vulnerability remediation, and penetration testing; requires IT Specialist I qualifications and degree documentation.
Burp Suite, API, Microsoft?, STD Form 678
3w
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Metrology Specialist
Vernon, California, United States
$75k-$150k/yr FieldFull Time
Bender CCP
Bender CCP: Industrial rotating-equipment repair and heavy-machining serving municipal, naval, hydropower, and critical-infrastructure customers.
Experience operating laser trackers (FARO, Leica, API), interpreting drawings/GD&T, performing dimensional inspections and alignments, and traveling 50–75% for field work.
FARO, Leica, API, PolyWorks, SpatialAnalyzer, Verisurf, CAD
4w
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Product Specialist
United States
OnsiteFull Time
Bannerflow
Bannerflow: Swedish creative automation platform helping enterprise marketing teams produce and optimize digital advertising at scale.
Customer-facing technical role requiring experience in product support/implementation, proficiency with HTML/CSS, data feeds and APIs, strong communication and ability to work across time zones.
HTML, CSS, API, data feeds