Top Software Engineer Jobs in Philadelphia, PA

Design, build, and maintain scalable cloud-based mobile and web backend systems using TypeScript/Node.js and NestJS. Develop and integrate REST APIs, support an AWS-hosted SaaS product, troubleshoot production issues, improve performance and reliability, participate in Agile/Scrum, contribute to architecture and engineering standards, and collaborate cross-functionally to translate product goals into reliable software.

Build and maintain backend services and RESTful APIs in .NET (C#); write and optimize SQL (MySQL); improve internal tool UIs with Razor and vanilla JavaScript; integrate third-party APIs; troubleshoot and debug; participate in sprint planning and code reviews to ensure reliable, data-driven internal tooling.

The Staff Software Engineer will design and build user-facing features for clinical AI applications, ensuring quality and security while collaborating cross-functionally.

Design, build, and operate high-throughput distributed data pipelines and platform infrastructure. Own end-to-end systems from architecture to production, write production-grade Python, optimize SQL at scale, architect service contracts, mentor engineers, and instrument systems for observability.

Design, build, and optimize Shopify storefronts, custom apps, and backend workflows. Develop customer-facing subscription and personalization tools, internal dashboards, and performance-focused checkout improvements. Collaborate to turn concepts into scalable products and deliver clean, production-ready code.

Lead full-stack development across Superset frontend and backend services. Design and ship end-to-end features, improve performance and scalability, own major technical initiatives, mentor engineers, set engineering standards, and collaborate with product, design, and the open-source community.

Design, build, and maintain Chaos Engineering tooling and distributed backend systems. Collaborate with product and cross-functional teams, mentor engineers, ensure reliability through automated testing and CI/CD, integrate with cloud and external systems, and deliver production-ready features that improve system availability and customer experience.

Lead backend development for MapMyFitness, collaborate with product/marketing/design, build and maintain APIs for mobile clients, respond to bugs, monitor and resolve incidents, ensure high availability, ship maintainable/testable code, and drive major architectural changes for a platform used by millions.

Lead end-to-end Salesforce enhancements: gather requirements, design solutions, configure platform (objects, flows, LWCs), manage QA/UAT and releases, monitor integrations, resolve defects, maintain documentation, and provide post-deployment support and training.

Serve as the primary technical contact for telehealth partners: run kick-offs, triage Slack, meet SLA commitments (including occasional weekend coverage), build and ship integrations, SDKs, and partner-facing tooling, translate partner needs into specs/bugs, and produce external documentation and guides.