1w
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API Consultant
United States or London or New York City or Berlin or Tokyo or Hamburg
HybridFull Time
Pre-sales or technical consulting experience with APIs, strong presentation and demo skills, hands-on building of agents/workflows, familiarity with REST APIs/JSON and authentication methods, strong communication and analytical skills.
REST APIs, JSON, OAuth, API keys, MCP, Langdock
2mo
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Senior API Engineer - Advisor I
Alpharetta or Omaha or Berkeley Heights
$90k-$158k/yr OnsiteFull Time
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
1w
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Sr Java API Developer - New York
New York, New York, United States
$40k-$140k/yr OnsiteFull Time
Photon: A technology employer building secure, scalable, and maintainable backend and API solutions.
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
2w
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API Developer/Data Engineer Managing Consultant-Fraud/AI
McLean or New York City or Arlington or United States
$130k-$216k/yr HybridFull Time
5+ YOEUS citizen able to obtain Public Trust,5+ years in data engineering/integration, proficiency in Python, Java/JS, .NET (C#), RESTful APIs, XML, SQL/SQL Server, GCP, data formats (JSON, Parquet), and experience leading technical teams.
Python, Java, JS, C#, .NET, RESTful API, XML, SQL Server, SQL, CSV, TXT, JSON, Parquet, GCP, Apigee, Kong, Azure API Management, AWS API Gateway, LexisNexis, Oracle Mantas, Actimize, Fircosoft, Oracle Mantas, World-Check, Dow Jones, Chainalysis, Elliptic, TRM Labs
2mo
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Senior Software Engineer | API
New York, New York, United States
$140k-$220k/yr HybridFull Time
Backend/API engineering focus with REST, distributed systems, and developer experience.
3d
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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
1mo
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Platform Engineer- GraphQL/API
Dublin or San Jose or New York City or Shanghai
HybridFull Time
3+ YOE3+ years software engineering experience; strong Java and Spring Boot skills; GraphQL and API design experience; CI/CD (Maven/Jenkins); Kubernetes and cloud-native deployments; focus on reliability, scalability, and developer experience.
Java, Spring Boot, GraphQL, REST, CI/CD, Maven, Jenkins, Kubernetes
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
2d
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Principal Architect- Identity, Data Modeling & Platform API
Jersey City, New Jersey, United States
$204k-$285k/yr OnsiteFull Time
Expertise in identity-centric architecture, data modeling, API design, IaaS/hypervisor integration, regulatory controls, and stakeholder communication in large regulated financial environments.
Kerberos, Active Directory, REST, gRPC, CI/CD, Jira, Kanban, OPA, Conftest, Sentinel, Kubernetes, mTLS, PKI, IaaS
1w
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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
1mo
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Senior Backend Engineer (Python/API) - Hybrid NYC- Blueflame AI
New York City, New York, United States
$141k-$248k/yr HybridFull Time
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.
Python, MongoDB, Redis, RESTful APIs, LLMs
2mo
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Payer Integrations Engineer
United States or New York City
RemoteAll Commitments Available
API integration experience; REST/SOAP; multi-threaded, organized; customer-facing; systems mindset; proactive.
REST, SOAP, API integrations, Backend systems
2w
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Implementation Engineer - ERP Integrations
New York or Sao Paulo or Cali or Bogota or Porto Alegre or Joinville
RemoteFull Time
2+ YOE2+ years in technical implementations or integrations at a SaaS company; experience with APIs/REST/JSON and ERPs (Eclipse, P21, Infor, SAP, Acumatica); strong communication and project management skills.
Eclipse, P21, Infor, SAP, Acumatica, API, REST, JSON, Zendesk
2mo
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Senior Software Engineer, Zaidyn
Chicago or New York or Princeton
HybridFull Time
3+ YOEBachelor’s or Master’s in CS/EE/math or related; 3-5 years software product development; full-stack SaaS experience; strong APIs, SOA/REST; English fluency.
Java, REST, SOA, Jenkins, Hibernate, Maven, TeamCity, APIs, OOP, DI/IoC, AWS
1mo
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Ivalua Technical Lead
Houston or Milwaukee or Dallas or Columbus or Cincinnati or New York City or Austin or Cleveland or Oklahoma City or Albany or Chicago or St. Petersburg or Hartford or St. Louis or Sacramento or Raleigh or Minneapolis or Mountain View or Denver or Boston or Philadelphia or Des Moines or Overland Park or Walnut Creek or Charlotte or Seattle or Carmel or Atlanta or Arlington or Bentonville or Nashville
$63k-$219k/yr OnsiteFull Time
5+ YOE5+ Mgmt5+ years leading Ivalua technical implementation teams, 3+ years building REST/SOAP API integrations, Ivalua certified, knowledge of SAP/PeopleSoft/Deltek, bachelor’s degree or equivalent.
Ivalua, REST, SOAP, SAP, PeopleSoft, Deltek, API
1w
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Partner Operations Specialist
United States or Canada or Seattle or Québec or New York
RemoteFull Time
4+ YOE4+ years technical operations or FinOps experience, 3+ years with AWS/Azure/GCP, API/REST experience, Jira use, familiarity with LLM tools; cloud practitioner certification is a plus.
AWS, Microsoft Azure, GCP, API, REST, Jira, Claude
1mo
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Customer Integration Engineer
New York, New York, United States
$110k-$160k/yr HybridFull Time
5+ YOE5+ years building production integrations or data pipelines; strong Python and API (REST/SOAP) experience; familiarity with webhooks, OAuth/JWT; excellent client-facing communication and independent ownership.
Python, APIs, REST, SOAP, webhooks, OAuth, JWT, FHIR, HL7, EHR, AWS, GCP, Azure, Docker, AI
1mo
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Principal Solution Architect - US Enterprise, Amazon Shipping
Bellevue or New York or Santa Monica
$183k-$272k/yr OnsiteFull Time
10+ YOEBachelor's in CS/Engineering/Mathematics, 10+ years enterprise-scale technology experience in logistics/shipping/supply chain, expertise in API/REST/cXML/EDI integrations, strong executive communication and technical discovery skills.
APIs, REST, cXML, EDI, TMS, WMS, ERP, OMS
1mo
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Technical Account Manager (all genders)
New York or Hamburg
$150k-$170k/yr RemoteFull Time
About You: An enterprise commerce platform enabling brands and retailers to realize direct-to-consumer ambitions.
5+ YOE5+ years in enterprise e‑commerce/SaaS or digital consulting; technical customer-facing experience; knowledge of e‑commerce architectures, REST/GraphQL/webhooks, APIs and integrations; degree in CS/IS/Engineering or equivalent experience.
REST, GraphQL, webhooks, APIs, OMS, PIM, CMS, ERP, Microservices, API-first, Cloud-native, Salesforce Commerce Cloud, CommerceTools, SAP Commerce Cloud (Hybris), Shopify Plus, SCAYLE, MACH
1mo
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System Analyst - Cards
New York or Dallas or Durham
$91k-$114k/yr OnsiteFull Time
10+ YOEBachelor's degree in CS/IT, 8–10+ years systems analyst experience, strong API and cards domain knowledge, SQL, REST/SOAP/JSON, Jira, BDD (Gherkin/Cucumber), Splunk, OpenAPI, and test data tooling.
APIs, SQL, REST, SOAP, JSON, Jira, Gherkin, Cucumber, Hexawise, Splunk, OpenAPI
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