Top Software Engineer Jobs in Philadelphia, PA

Own and improve the iOS experience for Tilt's credit products, driving application-to-activation funnel improvements through experimentation, A/B testing, and analytics. Collaborate with design, product, data science, and backend teams, ensure regulatory precision in implementations, and grow into full iOS ownership while supporting cross-platform initiatives and attending biannual company offsites.

Lead technology strategy and unify four product lines into a secure, scalable SaaS ecosystem. Modernize legacy code, integrate platforms and escrow/banking systems, drive customer-facing AI, mentor engineering leaders, and align technology with business and regulatory needs.

Lead architecture and hands-on development of cloud-native Java microservices with an Angular frontend. Build FHIR/HL7-based interoperability pipelines, design scalable event-driven systems on GCP, and ensure data integrity across PostgreSQL/Spanner while defining engineering best practices and guiding agile teams.

Contract GPU kernel optimization role: analyze profiler metrics, identify bottlenecks, and improve kernel performance across modern GPU hardware. Implement and modify C++17, Python, and GPU code using CUDA/HIP/shaders, document optimization decisions, and collaborate as a freelance specialist (20+ hrs/week preferred).

Design, implement, and maintain performant, available, and secure database systems. Administer and optimize PostgreSQL and MariaDB, manage replication and Pgpool-II, develop stored procedures, tune SQL, automate deployments, create runbooks, support dev teams and on-call incident response, and collaborate across product and engineering teams.

Develop and implement Sage X3 functionality during ERP implementations. Create design recommendations, document solutions, estimate development effort, assist architects with design and reviews, and deliver scalable, highly available ERP components while following team standards and meeting budget targets.

Own and engineer the GTM stack: Salesforce as system of record and HubSpot as marketing system, build and maintain integrations and data flows, deploy agentic AI workflows, implement observability and change management, and partner with Sales, Marketing, Analytics, and Billing to ensure reliable revenue operations.

Lead sales and marketing technology operations, architect and optimize Salesforce and marketing stacks, drive integrations, analytics, AI/automation, governance, and vendor management. Build and mentor a technical team, partner with executives, and deliver agile, high-adoption solutions to accelerate revenue.

Senior Java Engineer responsible for designing and delivering high-quality, low-maintenance software. Coach client teams on modern development practices, apply test-driven development, collaborate in small teams, and pursue continuous learning to improve scalable, maintainable applications.

Own and resolve complex, recurring trader-impacting issues by reproducing, diagnosing, and shipping code fixes. Write backend C#/.NET and React front-end code, build admin tooling, improve observability, lead incident response and post-incident reviews, and partner across engineering, QA, Cloud Ops, and Product to reduce recurring support toil.