API Developer jobs in California

Sunnyvale, California

•

3d ago

Hi, The following requirement is open with our client. Title : API and Integrations Developer Location : Sunnyvale, CA Duration : 6+ Months Relevant Experience (in Yrs.): 7+ Detailed Job Description: Flask, FastAPI, Bottle, Web2pyLocust, Airflow 2PythonMicrosoft SQL, PostgreSQLREST Web Services, Microservices, SOAPMessaging, Event-Driven ArchitectureGitMicrosoft AzureThanks & regards, Vamsi Billa Technical Recruiter == ASCII Group, LLC Mobile: Email: | Website: ==

Easy Apply

Contract, Third Party

Depends on Experience

Senior ServiceNow API Developer

Remote

•

Today

Join a high-intensity project as a Senior Developer focused on creating custom APIs and front-end widgets on the ServiceNow platform. You will work closely with clients and third-party teams to build connectors that integrate diverse applications. This role demands strong technical skills, clear communication, and dedication. Apply now to take on a challenging and rewarding opportunity. This position offers remote setup with the flexibility to work from any location in Georgia, whether it's you

Full-time

Fullstack Database Developer (React/Python APIs)

Hybrid in Menlo Park, California

•

Today

Fullstack Database Developer (React/Python API s). Overview Seeking a software developer to build a chemical inventory system that integrates seamlessly with our existing Lab Management System (LIMS). The goal is to improve material tracking, safety documentation, and experimental workflow integration. Requirements: Ingest materials using barcode scanning or UI inputRetrieve and store hazard information, SDS, and related dataIntegrate with the LIMS backend to support sample/material quantity upd

Easy Apply

Contract

$65 - $80

Java API Developer

Remote

•

25d ago

Position: Java API Developer Location: Merrimack, NH & Smithfield, RI (Remote) Job Type: 12+ months Contract Job Description: We are seeking two highly skilled and motivated API/ETL developers to join our team. In this role, you will be instrumental in integrating vendor solutions for data management and research publishing, automating research processes for compliance and efficiency, and developing robust data solutions. You will work on standardising data for vendor consumption, validating and

Easy Apply

Contract

Depends on Experience

FULL STACK DEVELOPER 10+ Years with React and API Tech, someone who can start without much handholding - 20 to 40 Hours per week, 100% Remote 6+ months, NO H1B

Remote

•

21d ago

Prefer PST Time FULL STACK DEVELOPER 10+ Years with React and API Tech, someone who can start without much handholding - 20 to 40 Hours per week, 100% Remote 6+ months, NO H1B Job Title: Application and Integration Developer About the Role We are seeking a skilled and motivated Application and Integration Developer to join our development team. In this role, you will support the design, development, and integration of modern applications and data solutions across our enterprise ecosystem. The id

Easy Apply

Contract

$50 - $60

ABAP Cloud / RAP Developer Clean-Core, Fiori & APIs

Remote

•

3d ago

Role Title: ABAP Cloud / RAP Developer Clean-Core, Fiori & APIs Location: Remote Primary Technologies: ABAP Cloud, RAP, Fiori Elements, REST/OData APIs Role Overview The ABAP Cloud / RAP Developer is responsible for designing, developing, and extending SAP applications using ABAP Cloud and the RESTful ABAP Programming Model (RAP). The role focuses on delivering clean-core extensions, API-based integrations, and Fiori-first user experiences for S/4HANA, SAP BTP, and cloud-native environments. The

Easy Apply

Contract

Depends on Experience

Our direct client is looking for Senior Backend Developer with Node.js, Typescript, APIs, AWS, GraphQL, Go (nice to have), DynamoDB, Data Modeling concept etc..

Remote

•

Yesterday

Client is looking for Senior Backend Developer with Node.js, Typescript, APIs, AWS, GraphQL, Go (nice to have), DynamoDB, Data Modeling concept etc..

Easy Apply

Contract

Depends on Experience

Senior Software Engineer, Fullstack (Developer - CDP API)

Remote

•

Today

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the

Full-time

USD 180,065.00 - 218,900.00 per year

Senior Java API, AWS Developer

San Jose, California

•

11d ago

Key Responsibilities: Analyzes, designs, develops, codes and implements applications in one or more programming languages, for Web and Rich Internet Applications.Supports applications with an understanding of system integration, test planning, scripting, and troubleshooting. Assesses the health and performance of software applications and databases.Establishes, participates, and maintains relationships with business units, customers and subject matter experts in order to remain apprised of direc

Easy Apply

Full-time

Depends on Experience

Backend Java Developer

Remote

•

3d ago

Remote We are seeking a Backend Developer to build and maintain server-side applications and APIs using Java, Python, and SQL. Responsibilities include designing efficient database schemas, implementing business logic, optimizing system performance, and developing scalable microservices architectures with strong security practices. The ideal candidate collaborates closely with cross-functional teams to deliver high-quality features. Experience with CI/CD pipelines and cloud platforms is a strong

Easy Apply

Contract

Depends on Experience

Backend Software Engineer *** Direct End Client ***

Oakland, California

•

Today

Software Engineer Backend (Scala, Java, Google Cloud Platform) Job Description:We are seeking a Senior Backend Software Engineer to join our fast-growing engineering team. This role is ideal for someone who thrives in a dynamic, startup-like environment and is passionate about building scalable systems that power personalized financial experiences. What You ll Do:Design, build, and maintain scalable backend services using Scala, Java, and Google Cloud Platform (Google Cloud Platform).Develop ro

Easy Apply

Third Party, Contract

Depends on Experience

Senior Engineer API Integrations

Remote or Richmond, Virginia

•

Today

We are seeking a Senior Engineer - API Integrations to design, build, and maintain secure and scalable API and integration solutions across ERP, CRM, OMS, POS, reservations, and third-party platforms. In this role, you will be responsible for developing cloud-native integrations and APIs that connect mission-critical systems across our aviation ecosystem. You will collaborate with architects, product owners, and business teams to deliver reliable, high-performing solutions on Azure. Responsibili

Easy Apply

Full-time, Part-time, Contract, Third Party

ServiceNow Technical lead / Software Engineer

Remote or Sacramento, California

•

Today

Job Description Job Role: ServiceNow Technical lead / Software Engineer Work Mode: Remote Location: Sacramento - CA My client is seeking a professional with 15+ years of overall IT experience and 10+ years of hands-on ServiceNow expertise to support a major enterprise project. The role involves working across a diverse portfolio of public-facing and internal applications, including workflow automation systems, low-code platform solutions, analytics dashboards, and ERP environments. The technol

Full-time, Part-time, Third Party

$70$ - 90$/Hrs

Remote API/Data Engineer

Remote or Dallas, Texas

•

Today

We are seeking a highly hands-on Senior API Engineer to support both Platform Engineering and API Engineering functions. In this role, you will work on the APIs that power all firmwide data products and services. This is a 100% coding-focused role no architectural design work, no SRE responsibilities, and no pure infrastructure-only work. You ll build, enhance, and maintain mission-critical API services while working with AWS, Kubernetes, Terraform, API Gateway, Java and/or Golang. This is a lon

Easy Apply

Contract

USD65 - USD75

API Lead (IIB, API Connect)

Remote

•

Yesterday

API Delivery Lead 6+ months 100% Remote Strong technical background as a software engineer, ideally with practical experience in both EDI transactions/API build. We do a lot in the IBM IIB/APIC space. My intent would be to have that individual play more of a senior role, with oversight to ongoing work. There would be a number of different workstream projects going where we wouldn t necessarily be hands on doing the work, but would have ownership of the solution because it integrates with 3rd par

Easy Apply

Contract

$60 - $70

Head of AI Platform Engineering

San Francisco, California

•

Today

Who Are We? Postman is the world's leading API platform, used by more than 40 million developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the globe build the API-first world by simplifying each step of the API lifecycle and streamlining collaboration-enabling users to create better APIs, faster. The company is headquartered in San Francisco and has offices in Boston, New York, and Bangalore - where Postman was founded.

Full-time

USD 310,000.00 - 345,000.00 per year

Integration Engineer Azure APIs

Remote

•

18d ago

Job Title: Integration Engineer Azure APIs Location: Remote Employment Type: Long Term Contract About the Role: We are seeking a skilled Integration Engineer to join our team as we transition from a MuleSoft-based integration environment to a Java- and Azure-based API Integration framework. The ideal candidate will have strong hands-on experience developing, deploying, and managing cloud-native integration solutions on Microsoft Azure, using modern frameworks and tools. You will be responsible f

Easy Apply

Contract

$70 - $80

Exclusive API Delivery Lead

Remote

•

Today

Job title: Exclusive API Delivery Lead Location: Remote Duration: 6+ Months Contract Strong technical background as a software engineer, ideally with practical experience in both EDI transactions/API build. We do a lot in the IBM IIB/APIC space. My intent would be to have that individual play more of a senior role, with oversight to ongoing work. There would be a number of different workstream projects going where we wouldn t necessarily be hands on doing the work, but would have ownership of th

Easy Apply

Contract

$60 - $70

API Business Analyst

Los Angeles, California

•

2d ago

Role Summary:Liaison between business, application teams, and integration/data engineering teams. Ensures requirements, documentation, and release processes are clear and well managed. Key Responsibilities: Gather and document integration/API requirements, data flows, mappings, and interface specifications. Maintain the enterprise integration catalog and API inventory. Coordinate releases, dependencies, testing cycles, and UAT efforts. Document SLAs, data contracts, operational expectations, and

Easy Apply

Contract, Third Party

Depends on Experience

Infor M3/Principal Consultant(M3 integrations/API )_ Remote

Remote

•

Today

Infor M3/Principal Consultant(M3 integrations/API )_ Remote 1 Year Contract Travel: 25% to Atlanta Experience Required: Proven ability to lead functional and design discussions with clients, gathering requirements and converting them into actionable configurations and solutions. Skillset Needed: Infor M3 - Maintenance Customer Orders, Work Orders. Experience with M3 integrations/API and Infor CPQ a plus.

Easy Apply

Contract

Depends on Experience

Filter Results

Job post features

Posted date

Work settings

Employment type

Employer type

Work authorization

API Developer jobs in California, USA