Top Software Engineer Jobs in Philadelphia, PA

Build and ship full-stack software for CoreWeave’s internal data infrastructure and operational applications. Develop TypeScript, React, and Next.js frontends; Python services on Kubernetes; SQL queries and data models; and AI-enabled interfaces such as text-to-SQL tools, retrieval systems, and agents. Own scoped features through production, including testing and post-release fixes, while collaborating with senior engineers and internal users.

Design, implement, and maintain embedded firmware and cloud-ready microservices/APIs. Develop embedded Linux using Yocto, integrate hardware and device drivers, improve CI/CD pipelines, mentor junior engineers, troubleshoot performance issues, and collaborate with cross-functional teams to deliver scalable, secure software for connected devices.

Leads software airworthiness certification for military aerospace programs, including certification strategy, regulatory engagement, audits, compliance documentation, cost and schedule oversight, and mentoring certification personnel. Applies EMAR 21, DO-178C, MIL-HDBK-516C, and FAA standards while providing technical consultation, executive reporting, training, and regulatory advocacy. The role supports multidisciplinary programs and may require up to 25% travel.

Build and maintain Python services and APIs within a Kafka-based event streaming platform. Develop enterprise integration services, support migration from legacy systems to cloud-native platforms, write automated tests, participate in code reviews, troubleshoot defects, and document service patterns. Collaborate with product, platform, and engineering teams while developing expertise in distributed systems, Kafka topic design, schema evolution, and agentic coding tools.

Designs, develops, and implements automated test software and techniques for complex RF electronic assemblies and systems. Develops test applications for FPGA- and CPU-based systems, hardware interfaces, communication protocols, and RF test equipment. Supports integration, qualification, acceptance testing, product development, customer requirements, test procedures, and cross-functional engineering operations. Requires extensive test engineering and programming experience, RF measurement expertise, U.S. person eligibility, and the ability to obtain and maintain a security clearance.

Develop, test, debug, optimize, and support desktop, web, and client-server applications for CATV and satellite set-top box and modem testing platforms. Create technical documentation, troubleshoot hardware and software issues, configure routers, analyze test results, maintain lab systems, release products to production, and collaborate with engineering leads, subject matter experts, and customers.

Develop and maintain PI Asset Framework software and related services using .NET and C#. Responsibilities include backend service development, SQL queries and stored procedures, unit and integration testing, and WinForms/WPF user interface development. The role also requires Azure DevOps YAML pipeline experience, Agile practices, and use of AI-assisted coding tools such as GitHub Copilot or ChatGPT.

Develops and supports enterprise software and the Atlassian Jira platform. Responsibilities include writing and testing Java-based applications, troubleshooting production and integration issues, administering Jira configurations and automations, supporting cloud-native applications, and collaborating with development, DevOps, database, and technical operations teams. The role also involves platform upgrades, deployments, documentation, process improvements, and integration with source control, CI/CD, monitoring, and other enterprise tools.

Lead end-to-end device software architecture and firmware development for safety-critical energy products. Design metering, real-time control, secure communications, firmware updates, and integration systems. Lead safety certification, hardware-software co-design, board bring-up, debugging, CI/CD, and production scaling. Delegate well-defined workstreams while remaining hands-on with embedded code, system design, security, testing, and technical leadership.

Develop and maintain scalable .NET software through the full SDLC. Responsibilities include designing applications and APIs, contributing to microservices and cloud-native architecture, implementing DevOps and CI/CD practices, building automated tests, supporting observability and incident response, applying secure coding, and collaborating in Agile teams. The role is fully onsite in Warren, Michigan, Monday through Friday.

Develop and maintain scalable .NET software through the full SDLC. Responsibilities include building REST APIs and integrations, contributing to microservices and cloud-native architecture, applying DevOps and containerization practices, creating automated tests, supporting observability and incident response, implementing secure coding practices, and collaborating in Agile/Scrum teams. The role is fully onsite in Warren, Michigan.

Develop and maintain scalable .NET software throughout the SDLC. Responsibilities include designing RESTful integrations, contributing to microservices and event-driven architecture, implementing Azure cloud solutions, applying DevOps and containerization, building automated tests, monitoring applications, practicing secure coding, and collaborating within Agile teams. The position is fully onsite in Warren, Michigan, Monday through Friday.

Develop, test, and release customer-facing and internal software features. Write clean, maintainable, testable code; participate in design and code reviews; collaborate with product, design, data, analytics, and operations teams; and contribute to software architecture and engineering processes. This onsite new-graduate role emphasizes full-stack development, learning, communication, and rapid professional growth.

Build and operate full-stack applications and AI-facing features for CoreWeave’s internal data platform. Responsibilities include developing TypeScript, React, Next.js, and Python services; designing APIs and relational data models; integrating analytical data platforms; deploying on Kubernetes; and owning production reliability, testing, observability, and on-call support. The role also involves collaborating with non-engineers to define processes, shipping LLM-backed applications, and evaluating AI output quality.

Build and maintain backend services and metadata pipelines supporting data discovery, governance, and AI/ML workflows. Responsibilities include integrating relational databases, developing Java, Node.js, and Python services, optimizing distributed pipelines, implementing Terraform infrastructure, supporting GitLab CI/CD, and writing comprehensive tests. The role also involves troubleshooting scalability and reliability issues, designing asynchronous workflows, and collaborating on modern data lake, search, metadata, and LLM-enabled technologies.

Develops, customizes, tests, deploys, and supports Guidewire applications across the full stack. Responsibilities include Java/Gosu coding, SQL development, integrations, APIs, front-end and back-end systems, production support, release management, SDLC enforcement, testing, and technical guidance for junior and offshore developers. Requires on-call support for critical issues and project go-lives.

Lead the design, development, testing, and delivery of complex Java software solutions for government and national security customers. Build RESTful microservices, collaborate on frontend and backend systems, establish quality standards, conduct code reviews, explore new technologies, and mentor junior engineers. The role involves technical leadership, Agile delivery, DevOps, cloud infrastructure, and working onsite at client locations three to four days per week after obtaining security clearance.

Develops and supports Python- and .NET-based applications, APIs, automation tools, ETL processes, and cloud solutions. Responsibilities include software design, coding, testing, troubleshooting, production support, root cause analysis, data validation, and continuous improvement in an agile environment. The role uses AWS, databases, integration frameworks, CI/CD tools, distributed computing technologies, and scripting languages while collaborating with internal, offshore, and contract development teams.

Develops and supports Python- and .NET-based applications, APIs, automation solutions, ETL processes, and operational tools. Responsibilities include software design, coding, testing, documentation, cloud and data integration development, production support, root cause analysis, defect remediation, data validation, and continuous improvement. The role works collaboratively in an agile environment with developers and product owners and uses AWS, databases, APIs, distributed computing, and CI/CD technologies.

Design, develop, test, and maintain full-stack software applications for a secure financial-services compliance platform. Responsibilities include building database objects and data pipelines, optimizing performance across application layers, developing server-side web features, testing and debugging, participating in code reviews and agile ceremonies, documenting systems, and following secure coding and regulatory compliance practices.

Design, architect, build, and deliver core identity and access management services for MongoDB Atlas. Lead complex technical projects from specification through delivery, improve engineering practices and code quality, define priorities, and mentor team members. The role focuses on authentication, authorization, backend systems, and secure customer-facing IAM features while supporting FedRAMP requirements.

Develop and support corporate tax workstation products using .NET, C#, Dynamics 365, Power Automate, ASP.NET, and SQL Server. Responsibilities include technical design, coding, testing, troubleshooting, deployment, performance and security improvements, documentation, code reviews, and mentoring developers. The role collaborates with stakeholders and international teams to deliver reliable solutions on schedule.

Develop and maintain scalable full-stack applications using ReactJS, Java Spring Boot APIs, Microsoft SQL Server, and IIS. Build responsive front-end experiences, optimize backend services and database queries, and translate business requirements into technical solutions. Collaborate with product managers, QA, UX, DevOps, vendors, and engineering teams to deliver reliable, maintainable software supporting oncology pathways and clinical workflows.

Develop and maintain scalable full-stack applications using ReactJS and Java Spring Boot APIs. Build RESTful backend services, optimize Microsoft SQL Server queries and schemas, and ensure application performance, reliability, and data integrity. Translate business requirements into technical solutions, write maintainable code, and collaborate with product, QA, UX, DevOps, vendors, and engineering teams within an agile software development environment.

Designs and deploys enterprise-scale software, AI-powered data solutions, cloud databases, and automated ETL/ELT pipelines. Builds distributed data platforms using Spark, Scala, Python, and Java; develops SQL procedures; manages Azure data technologies; and implements CI/CD, DevOps automation, testing, performance tuning, and code reviews. Collaborates with engineering and architecture teams in an agile cloud environment while applying responsible AI practices.