Top Software Engineer Jobs in Philadelphia, PA

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.

The Software Engineer Lead manages Java development and application support, mentors team members, and ensures project delivery in an Agile environment. The role includes API development, database integration, and technical documentation.

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.

Assist in design, develop, debug, test, and maintain software applications; participate in code reviews and agile ceremonies; write technical documentation; collaborate with QA to ensure reliability and performance; research technologies and review literature to support project work.

Assist in designing, developing, testing, debugging, and maintaining software applications. Participate in code reviews and agile ceremonies, write technical documentation, collaborate with QA to ensure reliability, and stay current with emerging technologies. May work nights/weekends and exercise independent judgment.

Lead technical delivery across short-term, high-priority engineering engagements: write production code, make architecture decisions, mentor small teams, ensure quality, and rapidly onboard to unfamiliar systems spanning full-stack, cloud/DevOps, SRE, and ML domains.

Design and build a Go/AWS-first platform for scalable third-party device onboarding. Lead architecture for cloud-to-cloud API and event-driven integrations, implement high-concurrency backend services, ensure reliability and observability, support legacy Java platform during transition, own end-to-end delivery, and mentor the team.

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

The role involves deploying open-source LLMs and vector databases, implementing RAG pipelines, and ensuring security and governance in on-prem environments.

Join an agile delivery team to design, build and test secure, scalable software services using cloud-native technologies. Contribute to prototyping, code reviews, and customer collaboration while learning from experienced engineers and applying modern frameworks, containers, and CI/CD practices.

The Advanced Software Engineer designs, develops, and maintains scalable software solutions, integrating AI capabilities across the software lifecycle while collaborating with cross-functional teams.

Design, deploy, and test modular front-end user interfaces; gather user requirements via customer working groups and wireframes; coordinate with backend developers; create end-to-end tests and participate in usability events to validate UI functionality within mission software deployments.

Design, develop, and implement C# microservices and a containerized simulator for verification/validation. Build and run unit, system, and end-to-end tests, manage CI/CD, containerize and deploy with Docker/Kubernetes, participate in agile events, support integration and installation events, and engage with customer working groups.

Design, build, and support Salesforce solutions using Apex and Lightning Web Components. Configure and customize Salesforce, integrate third-party tools, follow development lifecycle and best practices, mentor junior developers, commit code to Git, and advise government healthcare clients on modernization and platform improvements while meeting vetting requirements.

Leads software application development, from requirements and design to coding and testing, focusing on web applications using Next.js and ASP.NET Core.

Develop and operate core data platforms, improve frontend architecture, add functionalities to APIs, integrate data sources, and provide feedback to the team.

Develop enterprise solutions using AWS, manage data workflows, mentor junior staff, and ensure secure coding practices while collaborating with various teams.

The role involves data collection for AI model training, managing cloud infrastructure, and collaborating with scientists to enhance data quality and processing.

The Associate Software Engineer will support data management, system integrations, and automation tasks involving SQL and APIs, collaborating with senior engineers and maintaining operational efficiency.

The Associate Software Engineer supports design, development, and maintenance of applications and automation tools for the Philadelphia Department of Prisons, focusing on enhancing departmental operations.

Design, develop, and maintain software solutions. Responsibilities include full-stack development, microservices architecture, CI/CD implementation, and data management.

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.

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.

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, 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.