Top Senior Software Engineer Jobs in Philadelphia, PA

Provides hands-on technical leadership for Comcast’s Enterprise Decision Engine. Designs, develops, and operates scalable Java and Spring platform services, drives architectural evolution, translates complex requirements into technical solutions, and leads cross-team initiatives. Responsibilities include technical design, coding, reviews, mentoring, documentation, reliability and performance improvements, deployment support, incident response, and adoption of modern engineering practices.

Designs, develops, and delivers scalable, secure software solutions; resolves complex technical issues; optimizes performance and reliability; builds cloud-native systems; supports CI/CD, automation, containers, monitoring, and infrastructure provisioning. The role applies security and compliance best practices, manages technical integrations and evaluations, collaborates with stakeholders, reviews code, maintains documentation, mentors engineers, and drives continuous improvement.

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.

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, develop, test, debug, and maintain production-quality software applications and cloud services. Make technical trade-offs involving scalability, reliability, performance, and security; build RESTful APIs; support customer issues; and work in continuous integration and deployment environments. Collaborate with architecture, product, and development teams, contribute to technical research and documentation, review designs and code, lead complex initiatives, and mentor junior developers.

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

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

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.

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.

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, develop, and own full-stack digital applications using .NET and Angular. Lead partner integrations and insurance product capabilities, build secure cloud-native solutions on Microsoft Azure, and deliver reliable customer-facing experiences. Collaborate with product, design, and business stakeholders; mentor engineers; and promote engineering excellence through code reviews, automated testing, secure coding, and AI-assisted development tools.

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.

Design, develop, test, release, and maintain scalable full-stack SaaS applications, APIs, integrations, backend services, and data-access components. Guide architecture and technical decisions, diagnose complex production issues, and improve security, reliability, performance, and maintainability. Use AI-assisted and agentic tools responsibly, collaborate across engineering and business teams, and mentor developers. The role owns software through the full lifecycle, from discovery and implementation to production support and continuous improvement.

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.

Lead modernization of legacy medical logistics applications into secure, scalable DevSecOps solutions. Responsibilities include defining enterprise software architecture, migration strategies, microservices patterns, CI/CD pipelines, Azure cloud architectures, security guardrails, and domain-driven designs. The role provides hands-on development, technical mentorship, architecture reviews, and alignment with SAFe, DoD DevSecOps, Iron Bank, and DoDAF practices while supporting government medical supply chain operations.

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.

Develop multithreaded C/C++ application software for embedded Linux platforms, primarily for cable TV set-top boxes. Collaborate with distributed teams, apply embedded systems expertise, and deliver solutions aligned with cable industry standards.

The Senior Software Engineer will design, develop, and maintain software solutions, manage the entire development lifecycle, and collaborate with teams to enhance features and performance.

The Senior Software Engineer will design, develop, and maintain software solutions, managing the development lifecycle and ensuring high quality through testing. They will collaborate with teams and utilize agile methodologies.

The Senior Software Engineer will design, develop, and maintain software solutions, manage the software lifecycle, and ensure software quality through testing and collaboration with teams.

Design, develop, and maintain software solutions, manage the complete software development process, and collaborate with cross-functional teams to deliver high-quality features.

The Software Engineer will design and develop software solutions for advanced Agentic AI capabilities, focusing on autonomy and multi-agent collaboration while managing the software development lifecycle in an Agile environment.