Top Senior Software Engineer Jobs in Philadelphia, PA

Develop and maintain complex full-stack web applications using React and Node.js. Lead software through the full SDLC, from requirements and system design through deployment and maintenance. Build accessible, performant client-side applications, micro-frontends, and services; integrate frontend and backend components; and ensure quality through continuous integration, code reviews, and automated testing. Collaborate with Product, UX, engineering teams, and healthcare-domain professionals using Agile delivery practices.

Develop and maintain complex full-stack web applications using React and Node.js. Collaborate with Product, UX, and engineering teams to deliver accessible, scalable, secure applications across monoliths, micro-frontends, and services. Lead work through the full SDLC, including requirements, system design, deployment, maintenance, code reviews, continuous integration, and automated testing.

Design and deliver secure, scalable cloud-native software in agile teams. Shape architecture and technical direction, establish engineering standards, mentor colleagues, collaborate directly with public-sector customers, and solve complex technical problems. The role requires hands-on development, modern engineering practices including CI/CD and DevSecOps, and experience with cloud, containers, and production systems in complex environments.

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

Build and enhance FinTech alternative-investment platforms across the full application stack. Develop Angular and backend solutions, REST APIs, and event-driven microservices using Node.js and related technologies. Participate in design meetings and Agile ceremonies, collaborate with product managers, testers, sales, support, and third-party API teams, and apply AI-assisted development workflows, system design, cybersecurity practices, TDD, and continuous delivery.

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 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.

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 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.

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.

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

Provide technical leadership to design, develop, integrate, and support enterprise customer-data solutions using Salesforce Data Cloud and related cloud, API, and streaming technologies. Mentor junior engineers, collaborate with stakeholders, perform root cause analysis, and document solutions across front-end, back-end, and data layers.

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.

As a Staff Software Engineer, you will design, build, and scale backend systems for a financial platform while providing technical leadership and collaborating cross-functionally.

Lead the design and architecture of software systems, mentor developers, and develop scalable applications using C#, React, and Azure. Emphasizes CI/CD and AI tools.

Lead the implementation of scalable features, develop technical requirements, collaborate across teams, and enhance product offerings at Perpay.

The Senior Software Engineer will focus on frontend technology, implement features, mentor engineers, and ensure quality user experiences, primarily using React.

Collaborate with hardware and software engineering to develop and maintain traffic sensor systems, improve operations, and enhance security and performance.

The Senior Software Developer will create and maintain server-side software, collaborate in Agile projects, and ensure system operational support.

Build and evolve scalable software for digital pathology and medical imaging. Responsibilities include developing TypeScript and Vue applications, backend services, APIs, microservices, cloud-native infrastructure, automated tests, and CI/CD pipelines. The role contributes to architecture, observability, performance, developer productivity, and AI-assisted engineering workflows. Collaboration occurs across Agile/Scrum teams, with opportunities to improve engineering standards and deliver reliable healthcare software.

Provide technical leadership and hands-on development for the Nexity platform. Lead distributed engineering teams, establish architecture and coding standards, run Agile delivery, mentor engineers, drive secure, scalable cloud-based solutions using Azure/.NET and modern web stacks, leverage AI-assisted development tools, and collaborate with product, architecture, QA, and infrastructure to meet business objectives.

Lead a software development team as the senior technical authority: design architecture, enforce coding standards, deliver code, manage timelines, mentor developers, coordinate cross-team work, ensure production readiness, CI/CD, observability, security/compliance, and foster continuous improvement.

Design, develop, test, and implement navigation software and algorithms for sensitive navigation sensors. Collaborate with interdisciplinary teams, perform numerical analysis and optimization, deploy software in POSIX and real-time environments, and support lab and field/at-sea testing. Lead responsibilities and documentation expected for higher-level appointments.