Top Software Engineer Jobs in Philadelphia, PA

Lead cross-domain technical engagements across cloud, payments, observability, and ML. Provide hands-on architecture, prototypes, and code reviews; set technical direction; mentor engineers; build relationships with senior stakeholders; decompose ambiguous problems; ensure performance, scalability, operability, and security; and operate in a rapid SWAT-style model to unblock teams and transition work to long-term owners.

Build scalable, high-concurrency backend services in Go on AWS to integrate third-party IoT devices via cloud-to-cloud APIs and event-driven patterns. Design integrations handling auth/token lifecycles, rate limits, retries, idempotency, and state reconciliation. Support existing Java/Spring Boot platform during transition, participate in architecture discussions, improve observability and reliability, and own features end-to-end.

Design, build, and operate backend Java/Kotlin services that ingest, persist, and retrieve high-volume telemetry and alert data. Collaborate with product and frontend teams to deliver APIs, improve architecture, reduce technical debt, and deploy reliable, well-tested code frequently. Contribute to system reliability, performance at scale, and customer-facing alerting features within an agile team.

Design, develop, and maintain backend services and RESTful APIs for the Oseries product. Manage authentication (OAuth/JWT), cloud and on-prem environments, data configurations, reporting, and CI/CD reliability. Write SQL, unit/integration tests (JUnit5, Mockito), troubleshoot production/QA issues, and support deployments and automation (AWS Lambda, GitHub Actions). Participate in Agile ceremonies and use Postman, Swagger, and Jira for testing and delivery.

Design, implement, and lead medium-to-complex platform projects end-to-end. Make architectural decisions, build APIs and backend systems, ensure reliability, observability, and high availability; write automated tests; triage bugs; mentor junior engineers; collaborate with product, design, and customers; and drive continuous improvement initiatives.

Lead AppOps Engineer responsible for end-to-end application runtime health and reliability. Own production reliability, incident response, release/change operations, observability, automation, capacity and DR planning, security-by-default, runbook and SOP development, and mentor AppOps engineers while partnering with Engineering, CloudOps, Security, and Compliance.

Design, build, test, and maintain cloud-native enterprise software and microservices on Azure. Integrate LLMs and RAG/GraphRAG solutions, apply AI frameworks and prompt engineering, use Kubernetes/Docker and CI/CD, work in Agile teams, mentor engineers, and support production incidents and architecture decisions.

Design, develop, and maintain industrial process control software with integrated AI/GenAI capabilities across the full lifecycle. Own features end-to-end, ensure quality, security, and reliability, collaborate with cross-functional teams, validate AI outputs, mentor engineers, and support production deployments and operational issues.

Design, build, and operate resilient distributed integration services and APIs using Java and Node.js. Manage Kong API gateway via declarative YAML and CI/CD, implement FHIR data facades, integrate with REST/gRPC/messaging systems, own API lifecycle (OpenAPI, tests, versioning), and apply security (OAuth2/OIDC, mTLS) and cloud/container ops (Docker/Kubernetes).

Join Perpay as a Software Engineering New Grad. Contribute to coding, testing, and releasing features, while learning in a supportive and collaborative environment. Ideal for candidates with internships in full-stack development interested in a mission-driven role.

Design, develop, test, debug, and deliver software applications while making technical trade-offs for scalability and performance. Provide technical/customer support, document implementations, collaborate on priorities, review code, mentor junior developers, and follow team processes and best practices.

Design, build, and operate scalable backend integration services and APIs. Configure and manage Kong API Gateway via declarative YAML and CI/CD. Implement FHIR data facades, backend integrations (REST/gRPC/messaging), OpenAPI-driven lifecycle, automated testing, and secure service-to-service auth (OAuth2/OIDC). Deploy and operate containerized cloud services with observability and reliability patterns.

PowerPay seeks a Software Engineer to manage development tasks from requirements to deployment, focusing on backend services and AWS infrastructure. Responsibilities include writing Python and SQL, utilizing AI tools, maintaining data pipelines, and ensuring communication with stakeholders.

Design, implement, and integrate full-stack robotics software—from sensor integration and SLAM to motion planning, control, and behavior systems—using C++/Python and ROS/ROS2. Build simulations, support field tests and hardware integration, implement safety and real-time patterns, document systems, and mentor junior engineers.

Design and build software tooling, firmware, drivers, and infrastructure to accelerate semiconductor design, verification, manufacturing, and post-silicon validation. Develop scalable compute and data pipeline solutions, debug low-level hardware-software interactions, lead architecture and code reviews, produce documentation, and mentor junior engineers while evaluating emerging hardware and toolchains.

Design, develop, test, and maintain AI-enabled industrial process control software across the full lifecycle. Integrate ML/GenAI components, ensure reliability, security, and performance, mentor engineers, and collaborate with cross-functional teams for production deployment and support.

Develop, test, and support .NET applications, APIs, and data solutions within the SDLC. Collaborate on design, code reviews, data modeling, and source control. Troubleshoot issues, support data movement initiatives, and adhere to risk, regulatory, and internal control standards while contributing to modernization efforts.

Design, develop, test, and maintain software features across the SDLC. Collaborate with cross-functional teams, lead module coding, troubleshoot issues, participate in code reviews, and contribute to architecture decisions.

Design, develop, test, and debug scalable software systems; make technical trade-offs; build microservices; work with SQL/NoSQL and cloud platforms; mentor junior developers; provide technical support and participate in recruiting and documentation.

Design, implement, and optimize SLAM, localization, and computer vision pipelines for real robots. Fuse multi-sensor data (cameras, IMUs, lidars), build estimation algorithms, evaluate performance on real-world data, and produce production-quality, well-tested code integrated with ROS/ROS2. Collaborate with controls and planning teams and contribute to datasets, tooling, and evaluation frameworks.

Design, implement, and deploy real-time manipulation pipelines for multi-DOF arms on legged robots. Develop task and motion planning, grasping, control, and simulation workflows, debug across simulation and hardware, collaborate with cross-functional teams, and own performance from architecture through hardware validation.

Design and develop complex software solutions for the FedNow service, leveraging cloud technologies, Java, and Agile methodologies, ensuring high-quality and timely infrastructure support.

Senior-level developer responsible for designing, developing, and maintaining Microsoft/Oracle-based applications. Work on a Scrum team to plan designs, review requirements, and deliver software using VB.NET, C#, ASP.NET, WinForms, WCF, jQuery, and AJAX. Expected to apply Agile/Scrum practices and collaborate with peers, IT management, and end-users.

Lead design and build of a Python-based rating platform and pricing services. Architect extensible rating engines, establish engineering and testing standards, integrate third‑party data and predictive models, and provide hands-on technical leadership and squad coordination across actuarial, product, and implementation teams to operationalize filed rating plans.

Develop, test, integrate, and maintain .NET/C# web applications supporting NAVSUP logistics. Design system interfaces and databases, implement secure REST APIs, perform unit/integration testing, manage source control, troubleshoot issues, and collaborate with stakeholders in an Agile environment.