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.

Designs, develops, integrates, customizes, updates, and releases software applications. Responsibilities include requirements analysis, bug triage, complex troubleshooting, QA collaboration, technical mentoring, user training, and researching industry trends. The role requires independent judgment, punctual attendance, and flexibility to work nights, weekends, and variable schedules.

Design, customize, and maintain software applications; manage releases; collaborate with stakeholders and QA; mentor junior engineers; document development work; track performance metrics; lead design and prototyping sessions; work variable schedules including nights and weekends.

Design, customize, and maintain software applications; manage releases and documentation; collaborate with stakeholders and QA; mentor junior engineers; track performance metrics and use market research to improve products. Requires independent judgment and flexible schedule availability.

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.

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).

Develop and maintain desktop, web, and client-server applications for set-top box and modem test platforms. Responsibilities include coding, testing, debugging, optimization, documentation, technical support, hardware troubleshooting, test-result analysis, system configuration, software updates, production releases, and customer interaction. The role collaborates with engineering leads and subject matter experts in a fast-paced telecommunications testing environment.

Designs, builds, tests, and maintains scalable Ruby on Rails applications, APIs, relational databases, integrations, and automated testing systems. Partners with product managers, project managers, business analysts, and engineering teams to deliver business-critical features. Supports application monitoring, performance optimization, on-call production operations, and emerging technology initiatives. The role is hybrid in Philadelphia and supports behavioral healthcare systems.

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

Design, develop, test, and deploy scalable Salesforce solutions and integrations (including MuleSoft). Perform Salesforce administration, support, troubleshooting, and performance monitoring. Mentor junior developers, collaborate with stakeholders, and drive continuous improvement and automation within the CRM environment.

Entry-level Software Engineer supporting design, development, testing, and maintenance of Java-based enterprise applications. Work with senior engineers, QA, and stakeholders to implement features, write unit tests, troubleshoot defects, follow Agile/SDLC practices, use source control and DevOps tools, and learn cloud/CI/CD and application support under guidance.

Build and maintain developer-facing tools and APIs for MongoDB Atlas and Compass. Work full-stack on customer-facing UIs and backend services, design scalable, highly available web applications, collaborate cross-functionally, troubleshoot distributed systems, and improve performance and developer experience.

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.

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.

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.

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, 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 APIs including payment and subscription systems, collaborate on B2B solutions, ensure performance and scalability.

As a Senior iOS Engineer at Speechify, you'll lead product decisions, ship production code, enhance app architecture, and focus on customer experience in a fast-paced startup environment.

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, 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.

Lead architecture and implementation of large-scale, carrier-grade distributed network software. Drive design, development, validation, deployment, and operational support; mentor engineers; troubleshoot production incidents; collaborate with QA, vendors, and partners; and monitor performance, scalability, and security.

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.

Design, build, and maintain scalable backend services in Node.js/TypeScript. Collaborate with product and engineering teams, resolve production issues, contribute to architecture and testing, and improve system reliability and code quality across microservices and hardware-integrated systems.