Top Software Engineer Jobs in Philadelphia, PA

As a Backend Engineer, you will own end-to-end backend systems, build reliable APIs on Node and AWS, and implement scalable architectures. You will be responsible for high-quality production code delivery, establish best practices, and interface with product teams to enhance financial product performance.

Build end-to-end full-stack product features, integrate smart contract/blockchain calls, design resilient backend systems and indexers, optimize performance, lead QA and mentor junior engineers.

Lead and grow distributed database-internals engineering teams owning TimescaleDB. Set technical roadmaps, prioritize work with Product, collaborate with Platform, handle customer escalations, mentor engineers, and drive delivery of reliable, high-performance database systems.

The Full Stack Developer will create and maintain web applications using PHP, Javascript, and MySQL, ensuring effective API integration and quality communication.

Work on backend and frontend features for a waste-management SaaS: build Java/Spring Boot services, React UI, work with PostgreSQL/PostGIS, debug production, write tests, collaborate with Customer Success, participate in on-call rotation, and adopt AI-assisted development tools.

As a Unity Engineer, you'll implement features, ensure performance optimization, debug issues, and collaborate with the team to enhance gameplay for mobile titles.

Own technical onboarding and post‑onboarding support for market makers and institutional partners across CLOB, WebSocket feeds, RFQ gateway, and SDKs. Debug production integrations, write/maintain integration guides and code samples in Python and TypeScript, monitor integration health, and translate partner feedback into actionable product and engineering items.

This role involves developing features for the Backpack Wallet, optimizing performance, and managing projects from start to finish.

Join the engineering team as a Software Engineering Intern to build backend, frontend, or full-stack features using Java, Spring Boot, TypeScript, React, and AWS. Write clean, testable code, participate in code reviews and agile ceremonies, collaborate with DevOps/QA/Product, and help improve system reliability and developer productivity during a replatform effort.

The Technical Solutions Engineer collaborates with the Sales team, leveraging construction scheduling expertise to assist customers in integrating Planera's solutions into their workflow, conducting demos, and leading technical discussions throughout the sales process.