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Developer United States, Philadelphia Jobs

23 Job Offers

Mainframe CICS COBOL Developer
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Seeking a Senior Mainframe CICS COBOL Developer for a remote role based in Philadelphia, NJ. You will design and deploy scalable logistics applications using COBOL, CICS, and DB2. Requires 7+ years of hands-on COBOL/CICS experience and US residency. Enjoy comprehensive benefits including medical,...
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United States , Philadelphia
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87120.00 - 181500.00 USD / Year
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NTT DATA
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Full Stack Developer III (IAM / Security Focus)
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Join a collaborative IAM engineering team as a Full Stack Developer III in Philadelphia. You will design and build secure internal applications using Angular, Java, Spring Boot, and Node.js, focusing on authentication and authorization. Leverage your expertise in OAuth2, JWT, and AWS cloud-native...
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United States , Philadelphia
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Not provided
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Robert Half
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Python Developer III
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Seeking a Python Developer III in Philadelphia for a hands-on role designing scalable APIs, scripts, and data-driven solutions. Requires 5-8 years’ experience, strong Python and PHP skills, and expertise in SQL/NoSQL databases. Work in an Agile environment with cross-functional teams. Benefits in...
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United States , Philadelphia
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Not provided
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Robert Half
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Senior Developer, AI Code Modernization
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United States , Exton, PA, US Philadelphia, PA, US
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Bentley Systems
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Senior EDI Developer – Healthcare
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Seeking a Senior EDI Developer for a remote role supporting healthcare data. You will design and maintain HIPAA-compliant EDI maps, focusing on X12 standards like 837 and 835. This hands-on position requires expertise in IBM transformation tools and offers high autonomy. Join a team ensuring data...
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United States , Philadelphia
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120000.00 - 130000.00 USD / Year
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Beacon Hill
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Senior Quantitative Developer
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Join our Options Market Taking team as a Senior Quantitative Developer. Design and optimize high-performance, low-latency trading algorithms in a C# environment. Collaborate with traders and quants to build systems for competitive electronic options markets. This role is based in Bala Cynwyd, PA,...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Not provided
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Susquehanna International Group
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Software Developer Productivity Engineer
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Join Susquehanna as a Software Developer Productivity Engineer in the Philadelphia area. Optimize C++ build systems for low-latency trading infrastructure using distributed compilation and CI/CD. Requires 4+ years with C++, Python, Linux, and tools like make. Enhance developer productivity in a d...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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Quantitative Data Developer
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Join our fast-growing Quant Core Data team in the Philadelphia area. As a Python Developer, you will scale our critical historical data framework and build backtesting systems. We seek a developer with 3+ years of Python experience, strong systems fundamentals, and a passion for large-scale data....
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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Software Developer
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Join Susquehanna Sports in Bala Cynwyd, PA, to architect a next-generation sports trading platform. We seek a Python/JavaScript expert with experience in high-performance, data-streaming systems and event-driven architecture. You'll design complex systems from scratch, supported by excellent comp...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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Software Developer
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Join SIG as a Software Developer on a Front Office team in Bala Cynwyd, PA. Design and develop low-latency C++ trading systems for equities and futures. Collaborate directly with traders to innovate and rapidly deploy new features. Leverage 5+ years of C++ experience to optimize performance in a ...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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Software Developer
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Join Susquehanna, a leading global trading firm, as a Software Developer in the Philadelphia area. Utilize your 5+ years of C++ expertise to build critical libraries and debugging tools for market data. Collaborate with technologists and traders in a dynamic environment where innovation drives fi...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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Senior C++ Developer
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Join a Front Office team at SIG, designing cutting-edge low-latency trading systems in Bala Cynwyd, PA. As a Senior C++ Developer, you'll leverage 10+ years of experience to optimize performance and reduce latency. Collaborate directly with traders and technologists to innovate and deploy solutio...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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Software Developer
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Join our ETF Development Team as a Senior Software Engineer. Develop innovative trading applications using C#, Python, and JavaScript/TypeScript in a collaborative, full-stack environment. Work directly with traders and researchers in Bala Cynwyd, PA. Visa sponsorship is available for qualified c...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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Quantitative Strategy Developer
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Launch your quant career in Bala Cynwyd, PA. Develop low-latency C++ and Python strategies alongside senior developers on a trading desk. We seek STEM graduates with exceptional analytical skills for signal creation and quantitative analysis. Enjoy premier benefits including a fitness center and ...
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United States , Bala Cynwyd (Philadelphia Area), Pennsylvania
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Susquehanna International Group
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ERP/CRM Developer
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Join our team in Philadelphia as an ERP/CRM Developer. This contract role requires 2+ years of experience, proficiency in API/Salesforce development, and T-SQL. You will manage roadmaps for platforms like Tessitura and SharePoint, collaborating with cross-functional teams. We offer comprehensive ...
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United States , Philadelphia
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Not provided
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Robert Half
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Senior Salesforce Developer
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Join Eigen X as a Senior Salesforce Developer in Radnor, PA. This role requires 5+ years of Salesforce experience, including advanced triggers, Lightning components, and integrations. A Platform Developer certification and experience leading full-cycle projects are essential. Contribute to innova...
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United States , Radnor, PA (suburban Philadelphia, PA)
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Eigen X
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SharePoint-PowerApps Developer
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Seeking a senior SharePoint-PowerApps Developer in Philadelphia. This role requires 8+ years in SharePoint/UI design and 5+ years in Power Apps/Automate. You will act as a technical SME, designing integrated solutions with Dataverse and Dynamics 365. High productivity in a teleworking environment...
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United States , Philadelphia
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Ocean Blue Solutions
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Microsoft Applications Developer-Architect
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Seeking a Microsoft Applications Developer-Architect in Philadelphia to modernize a public health EDW in Azure. You will design and build the new data warehouse using Azure Databricks, Synapse, and Power Platform tools. This role requires advanced Power Apps, .NET/C#, and SQL skills for large-sca...
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United States , Philadelphia
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Ocean Blue Solutions
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ASP Dotnet Developer
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Join the Pennsylvania Fish and Boat Commission as an ASP.NET Developer in Philadelphia. You will upgrade the Resource First Portal to meet WCAG standards using ASP.NET, C#, and SQL Server. This role involves converting monolithic apps to microservices and working with Angular. We seek a self-moti...
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United States , Philadelphia
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Not provided
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Ocean Blue Solutions
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Integration Developer
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Seeking an experienced Integration Developer for a hybrid role in Philadelphia, PA. You will design and maintain backend services using .Net and GoLang, integrating complex systems like SAP and Dynamics 365. The role requires expertise in APIs, microservices, Docker, and high-volume payment proce...
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United States , Philadelphia
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Not provided
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Ocean Blue Solutions
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About the Developer role

Discover the dynamic world of developer jobs, a cornerstone of the modern digital economy. Developers are the creative and technical masterminds behind the software, applications, and systems that power our daily lives. From the websites we browse to the mobile apps we use and the complex enterprise software running global businesses, developers are the architects of our digital future. This profession involves designing, coding, testing, and maintaining the software that drives innovation across every industry.

A developer's primary responsibility is the entire software development lifecycle. This begins with analyzing user needs and then designing robust software solutions to meet those requirements. The core of the role involves writing clean, efficient, and well-documented code in various programming languages. Developers build and maintain the backbone of applications, which includes creating and managing Application Programming Interfaces (APIs), backend services, and database structures. They are responsible for implementing key architectural patterns like microservices to ensure systems are scalable, reliable, and performant. A significant part of their work involves integrating different systems, such as connecting applications to databases, message queues, and third-party services.

Beyond initial creation, developers are tasked with continuous improvement and maintenance. This includes identifying and fixing bugs, optimizing applications for speed and stability, and implementing security best practices to protect against vulnerabilities. They conduct rigorous testing, including unit and integration tests, to ensure software quality. Furthermore, developers collaborate closely with other teams, such as frontend engineers, quality assurance (QA) specialists, and DevOps teams, to enable seamless continuous integration and deployment (CI/CD) pipelines. In many modern environments, developers also work on containerizing applications using tools like Docker and orchestrating them with platforms like Kubernetes. For senior and leadership roles, responsibilities expand to include mentoring junior team members, managing project timelines, making strategic technology decisions, and overseeing a team's output and professional development.

Typical skills and requirements for developer jobs are diverse. A strong foundation in computer science principles is essential. Proficiency in one or more programming languages (such as Go, Java, Python, JavaScript, or C#) is a fundamental requirement. Developers must understand software architecture, including concepts like RESTful APIs, microservices, and event-driven systems. Experience with databases (SQL and NoSQL), version control systems like Git, and operating systems is standard. As the field evolves, knowledge of cloud platforms (AWS, Azure, GCP), containerization, and infrastructure-as-code is increasingly valuable. Crucially, soft skills are just as important; problem-solving abilities, analytical thinking, clear communication, and the capacity to work collaboratively in a team are highly sought after. Most positions require a bachelor's degree in computer science or a related field, or equivalent practical experience. Whether you are an entry-level programmer or an experienced applications development manager, developer jobs offer a challenging and rewarding career path for those passionate about building the technology of tomorrow.