Senior API Developer jobs in Philadephia, PA

Senior Genesys & API Integration Developer - Remote

Remote or Columbus, Ohio

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Today

Genesis10 is currently seeking a Senior Genesys & API Integration Developer - Remote for a contract position with a Regional Financial Institution located in Columbus or Akron, OH. This is a 6+ month contract opportunity. Compensation: $59.00 - $69.00 per hour, W2, based on qualifications Position Overview: The Senior Genesys & API Integration Developer will design, develop, and support Contact Center integrations and Agentic AI capabilities across the client's Genesys ecosystem. This position

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Full-time

USD 59.00 - 69.00 per hour

Lead API Developer with AI

Remote

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23d ago

Job Role - Lead API Developer with AI Location- Remote Hiring - Full-time Job Description-Experience building and consuming web services via SOAP and REST Expertise with continuous integration environments Experience with writing unit, integration, and Ul test cases Deep experience with responsive web design principles and cross device support Strong experience with Pivotal Cloud Foundry Knowledge in using Splunk for production support. Experience with Database Architecture, Modeling,

Full-time, Third Party

$120 - $130

Sr. Web Application Developer

Remote

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3d ago

Job Title: Sr. Web Application Developer Location: Indianapolis, IN Type: Contract Compensation: $58 - $70 Work Model: Remote offsite Responsibilities Lead the architecture, design, and development of modern web applications across a diverse technology stack, including .NET/C#, Node.js, and front-end frameworks (React, Angular, Vue). Design and implement scalable, cloud-native solutions using microservices and serverless architectures. Establish and enforce engineering best practices, codin

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Contract

$57.65

Sr. Software Engineer - REST API Development, AVP

Burlington, New Jersey

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19d ago

About the Role We are seeking a motivated and skilled Software Engineer to join our API Engineering team. In this role, you will design, develop, test, document, and support REST APIs that power critical business applications, partner integrations, and client-facing services. You will work closely with architects, product managers, quality engineers, and platform teams to build secure, scalable, and reliable APIs using modern software engineering practices. This position is ideal for an engineer

Full-time

USD 90,000.00 - 157,500.00 per year

Senior Software Engineer, API & Data Modeling

Remote

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Today

About Aalyria: Aalyria is a leading technology company that supplies laser communications technology and temporospatial software-defined networking platforms to the aerospace industry. With technology acquired from Google, Aalyria is at the forefront of innovation in satellite and airborne mesh networks, as well as cislunar and deep-space communications. We are revolutionizing the orchestration and management of planetary mesh networks using any radio or optical spectrum, any orbit, and any har

Full-time

USD 165,000.00 - 195,000.00 per year

Senior Oracle Integration & API Engineer

Remote

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Today

Job Title: Senior Oracle Integration & API Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US * * * The Opportunity: CACI is seeking a Senior Principal Consultant (Oracle Integration & API Engineer) to design, build, and sustain the integration fabric that connects Oracle Fusion Cloud HCM to the broader federal HR technology ecosystem.

Full-time

USD 114,600.00 - 252,100.00 per year

Sr. Fullstack Engineer / .Net / React Native / API, AWS / Mobile+ - Remote

Remote or Newport Beach, California

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Today

Our client is a Southern California product engineering company building streaming applications for media organizations. Its platform supports live and on-demand content across web, mobile, and connected TV. They are seeking a Senior Full-Stack Software Engineer (.NET, React + Native Apps) for a remote role. This is a hands-on position spanning backend services, web applications, and native or cross-platform clients. The ideal candidate has strong C#/.NET and React/TypeScript experience and has

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Full-time

USD 130,000.00 - 160,000.00 per year

Sr. Software Engineer II, Platform/API

Remote or Chicago, Illinois

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Today

Disclaimer: Please be advised that the most accurate and up-to-date information about our open roles-including job descriptions, compensation, and benefits-can only be guaranteed on our official job board. For the latest listings and details, please visit: ;br> JOIN US ON OUR MISSION TO BECOME THE #1 RETAIL TRADING PLATFORM IN THE WORLD Welcome to the dynamic world of NinjaTrader! As an industry-leading trading platform and futures broker, we're empowering traders to take control of their finan

Full-time

USD 140,000.00 - 190,000.00 per year

Senior Full Stack Java Developer (AI Integration)

Remote

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10d ago

Senior Full Stack Java Developer (AI Integration)Introduction:We are seeking an experienced Java Full Stack Developer with AI Experience to join our engineering team. In this role, you will design, build, and deploy high-performance enterprise applications while integrating modern Artificial Intelligence (AI) and Machine Learning (ML) capabilities. You will work across the entire software development lifecyclefrom front-end user interfaces and back-end microservices to embedding Large Language M

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Contract

55 - 65

Senior Manager, Application Development (Java, APIs, Microservices, AWS, AI)

Remote or North Carolina

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Today

We're building a world of health around every individual - shaping a more connected, convenient and compassionate health experience. At CVS Health , you'll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger - helping to simplify health care one person, one family and one community at a time. Position Summary We are seeking a highly motivated and

Full-time

USD 106,605.00 - 260,590.00 per year

Senior Developer(111995-1)

Remote

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2d ago

ROLE_DESCRIPTION" Develop and maintain applications on the backbase platform. Implement secure coding practices and ensure compliance with financial regulations. Develop and maintain backend services using Backbase platform. Integrate external banking systems and APIs. Implement authentication and access control using Backbase Identity. Knowledge of Backbase platform modules (Identity, Entitlements, Journeys). Configure and customize Backbase platform components. Experience with web application

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Full-time

$90

Senior Application Developer

Remote or Lynnfield, Massachusetts

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Today

Job Description Senior Application Developer About the Role We are seeking a highly skilled Senior Application Developer / Technical Lead to design, develop, support, and enhance enterprise web applications using modern Microsoft technologies. The ideal candidate will have strong experience with Angular, C#, .NET, IIS, Identity Management solutions, GitHub, Azure DevOps (ADO), and application security remediation practices. This role requires a hands-on technical leader who can collaborate ac

Full-time

USD 96,250.00 - 125,000.00 per year

Senior Java Developer

Remote or Hybrid in Texas City, Texas

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2d ago

Job Title: Senior Java DeveloperExperience: 10+ Years Job Type: W2 Contract Job DescriptionWe are seeking an experienced Senior Java Developer with 10+ years of experience in designing, developing, and maintaining scalable, high-performance enterprise applications. The ideal candidate should have strong expertise in Java, Spring Boot, microservices, REST APIs, cloud technologies, and database management. Key ResponsibilitiesDesign, develop, and maintain enterprise applications using Java and Spr

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Contract

60 - 65

Senior Software Developer

Remote

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Today

About Agile5: Agile5 Technologies, Inc., is a Woman-Owned Small Business (WOSB) and Information Technology (IT) services firm that specializes in the design, development, testing, integration, and maintenance of enterprise software systems. We believe our employees are the company's most valuable asset. We are invested in seeing our employees grow in their careers, while maintaining a work/life balance. We have an immediate, full-time need for a skilled, energetic, and driven Senior Software Dev

Full-time

Senior Principal Engineer, API Hub

Philadelphia, Pennsylvania

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8d ago

Location: Hybrid, Philadelphia (Philadelphia, PA office) Position Summary We are seeking a delivery-focused Senior Principal Engineer to build, own, and rapidly deliver the end to end technical architecture of the Bentley Developer Platform, which includes the front end developer experience, the API gateway, standards, authentication, metering, and billing infrastructure that powers Bentley's portfolio of developer APIs and MCP servers. This is a hands-on technical leadership role for someone wi

Full-time

Senior Appian Developer

Remote

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9d ago

Job description: Fully Remote opportunity. Senior hands-on Senior Appian Developer capable of owning complex workflows, integrations and application components. Key experience: Strong hands-on Appian developmentDesigning and developing complex Appian workflows/applicationsAppian records, process models, interfaces, rules, data models/CDTsComplex business workflow automationREST APIs and enterprise system integrationsExternal portal/application developmentAuthentication, authorization and RBACAgi

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Full-time

Depends on Experience

Full Stack Developer/Sr. Software Developer

Remote

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Today

Job Type Full-time Description Diaconia is a leader in technology solutions, digital transformation, etc, committed to delivering innovative products and services. We are seeking a highly skilled Full-Stack Developer to design, develop, and maintain enterprise-level applications in a mission-critical environment. The ideal candidate will bring deep expertise in Java Spring Boot microservices-based development, strong SQL skills for Oracle Exadata database integration, and hands-on experience d

Full-time

USD 145,000.00 - 150,000.00 per year

Senior Software Developer - #26-20955

Remote

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11d ago

Duration: 12+ Months Job Description: Client is scaling its AI and software engineering capabilities as part of a broader modernization and rewire initiative across infrastructure systems. This role is for a senior, hands-on software engineer who will contribute to building new application functionality while integrating with complex legacy systems. Responsibilities:Design, develop, test, and deploy scalable, production-ready software applications in cloud-based environments.Develop backend se

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Contract

$85 - $90

Lead Application Developer - Java

Philadelphia, Pennsylvania

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Today

Lead Application Developer - Java Summary The Lead Application Developer is a senior technical resource responsible for providing technical direction and leadership across enterprise application development initiatives while remaining actively involved in hands-on development. This role serves as a key connection point between application development teams, business stakeholders, architects, product teams, and technology leadership. The Lead Application Developer will help guide technical solu

Full-time

USD 70.00 - 75.00 per hour

Senior Principal Python Fullstack Engineer

Remote

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Today

Were looking for an Senior Principal Python Fullstack Engineer who can take ownership of end-to-end application architecture, development, cloud infrastructure, and deployment. Experience: 10+ Years Key Skills Required Strong Python expertise FastAPI / Django / Flask Frontend React / Vue / Angular RESTful / GraphQL API development PostgreSQL / Azure SQL MongoDB / Azure Cosmos DB Strong Azure Infrastructure experience AKS / App Services / Azure Functions Azure Networking, VNets, Key Vault, IAM,

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Full-time

Depends on Experience

Senior API Developer jobs in Philadelphia, PA, USA