Top Software Engineer Jobs in Philadelphia, PA

Designs, researches, and implements complex cross-system software; translates customer requirements into solutions; develops and optimizes data models and storage; mentors junior engineers; performs code reviews, TDD, and complex bug fixes; operates in Agile/Waterfall environments and promotes development best practices.

Design, develop, and maintain complex cross-system software; translate user requirements into solutions; implement best practices and development processes; resolve complex technical issues; mentor and train junior engineers; design complex data models and complete difficult bug fixes; participate in specifications, code reviews, and collaborate across teams in various development environments.

The Senior Software Engineer develops software for surgical navigation products, leading projects and ensuring solutions are efficient and scalable.

Design and develop software for medical devices, collaborate with product and UI/UX teams, and ensure project adherence to quality standards.

The Senior Software Engineer leads software development for surgical navigation products, develops prototypes, ensures performance and scalability, and works with a cross-functional engineering team using agile methodologies.

The Senior Software Engineer will develop medical image processing algorithms, manage project timelines, and ensure compliance with medical software standards while collaborating in a team environment.

Lead end-to-end delivery of web projects: discovery, architecture, implementation, deployment, and post-launch support. Act as technical lead and client contact, write front- and back-end code, perform reviews, mentor engineers, use AI-assisted workflows, manage scope/timelines, and identify risks early.

Lead design and implementation of cloud-native, event-driven logistics systems. Provide technical leadership, architect AWS services, own IaC, design APIs and EDI integrations, mentor engineers, and ensure scalable, real-time processing to support growth.

Classic automation test engineer responsible for building and configuring automated test infrastructure within sprints. Requires coding (Java or Python), strong familiarity with Gherkin/Cucumber, front-end or back-end automation, performance/load testing, and tools like Selenium, Appium, TestNG/JUnit and Spring. Role is roughly 60% coding and 40% test automation setup. 12+ month contract; good communication skills required.

Design and develop custom software solutions across multiple systems and collaborate with teams to ensure success in complex projects.

The Principal Engineer leads software development for optical networking products, mentors junior engineers, and supports pre and post-sales interactions. Requires expertise in embedded systems, C/C++, and networking protocols.

The Senior Backend Engineer at Perpay will design RESTful APIs, improve backend system reliability, and lead technical projects while mentoring team members. Collaboration with product stakeholders is essential for effective backend solutions.

Lead system verification for optical networking products: define test strategy, design test plans, automate Python-based regression and CI/CD pipelines, validate northbound interfaces (Netconf/gRPC/CLI/SNMP/REST) and DWDM/OTN features, run regression and sanity tests, produce release reports, and mentor junior verification engineers while collaborating with HW/SW and architecture teams.

The Senior Software Engineer will design, develop, and implement software solutions for law enforcement, leading projects and mentoring junior engineers in a collaborative Agile Scrum environment.

The Sr. Software Engineer will develop and test applications using .NET and SQL, collaborate with teams, ensure quality practices, and maintain technical documentation. They will contribute to software design and process improvements while adapting to changing environments in payment systems.

The Implementation Developer is responsible for developing high-performance multi-threaded applications and optimizing trading strategies, collaborating with analysts and engineers.