Top Software Engineer Jobs in Philadelphia, PA

Design, develop, test, maintain, and support IBM z/OS mainframe applications. Build COBOL programs, JCL jobs, DB2 stored procedures, VSAM file handling, CICS online and batch apps. Manage batch schedules (TWS), MQ integrations, SORT utilities, and code/version control. Provide production support, incident resolution, performance tuning, and collaborate with cross-functional teams while following coding standards and security/compliance guidelines.

The Software Engineer will improve product engagement through full stack feature development, user behavior analysis, and collaboration with product and design teams.

Build pixel-accurate, accessible, responsive interfaces from Figma using handcrafted CSS/SCSS and modern layout primitives. Implement interactive UI in Vanilla JavaScript and React/Next, integrate front-end with CMSs (Contentful, Drupal, WordPress), use modern build tooling, participate in code reviews, and leverage AI tools to speed debugging and scaffolding.

The Backend Engineer will develop infrastructure for product integration, create documentation for team training, and influence technology decisions.

Design and architect enterprise Power Platform solutions (Power Apps, Power Automate, Power BI) integrated with Microsoft 365 and Azure. Lead development, code reviews, CI/CD, and troubleshooting; mentor junior developers; run workshops, produce engineering documentation, and participate in Agile/DevOps practices while ensuring scalability, security, compliance, and data governance.

Lead and grow a Core UI team owning the design system, shared component libraries, frontend architecture, and engineering-UX partnership. Drive standards for accessibility, performance, testing, and documentation; set roadmap and delivery priorities; mentor engineers; and collaborate with product, design, and other engineering teams to improve UI consistency and velocity.

Lead development of the production toolchain that compiles complex Python packages (e.g., NumPy, SciPy, PyTorch). Build and maintain build/release pipelines, create and review conda recipes, automate processes, mentor engineers, run incident response and postmortems, and advise leadership on technical tradeoffs. Partner with distribution and wheels teams and validate AI-assisted code where used.

The Principal Engineer will lead the design and delivery of core platform capabilities, focusing on scalable systems, AI application, and mentoring engineers while driving architectural decisions and improving operational systems.

Build end-to-end user features under senior guidance: implement REST endpoints in Node.js/TypeScript, microservices in Python, maintain PostgreSQL schemas, process background jobs with QStash/Upstash, deploy to Cloudflare Workers/Pages/R2, write tests, and collaborate with product/design on React UI components.

Lead two engineering groups building shared foundational services (identity, subscription). Drive technical strategy, architecture, observability, CI/CD, and DORA metrics. Manage people, hiring, cross-team collaboration, product partnerships, and mentor engineers while occasionally prototyping and contributing to code and technical planning.