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.

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.

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.

Develops, tests, debugs, and optimizes desktop, web, and client-server applications for set-top box and modem test platforms. The role collaborates with test design engineers, provides technical support, troubleshoots hardware and software issues, prepares technical documentation and test reports, configures routers, maintains test systems, and supports product release. Candidates should understand software engineering practices, IP networks, Linux, hardware debugging, circuit analysis, and preferably C# development.

Develop and maintain software for human memory experiments, brain stimulation studies, intracranial EEG processing, and neuroscience data analysis. Responsibilities include building behavioral experiments, creating reproducible pipelines, supporting high-performance computing workflows, troubleshooting Linux infrastructure, testing software, documenting code, and collaborating with neuroscientists and clinicians. The role offers opportunities for scientific involvement in computational neuroscience, epilepsy, memory research, and brain stimulation.

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.

Design, develop, and maintain backend APIs including payment and subscription systems, collaborate on B2B solutions, ensure performance and scalability.

Senior technical developer responsible for administering, configuring, developing, and troubleshooting OSIsoft PI/AVEVA PI System environments. The role integrates laboratory and manufacturing equipment, manages PI tags and data collection, assesses system compatibility, resolves networking and connectivity issues, and supports documentation, testing, change control, and validation in GMP-regulated environments. The developer collaborates with IT, engineering, laboratory, and manufacturing stakeholders to maintain reliable data integration.

Develop Interactive Response Technology systems for clinical trial randomization and drug supply management. Responsibilities include reviewing requirements, creating technical designs, developing reliable software, deploying systems across environments, documenting work, troubleshooting production issues, and contributing ideas to product research and development. The role emphasizes patient safety, clinical data integrity, maintainability, and collaboration with cross-functional teams.

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.

Develop and maintain ecommerce software across the full software development lifecycle. Design microservices and event-driven systems, build customer-facing features, improve existing applications, troubleshoot production issues, and collaborate with architects, developers, QA, business analysts, and end users. The role requires Python or Golang, RESTful services, asynchronous processing, data modeling, web technologies, databases, testing, cloud platforms, and professional experience using AI coding agents.

Develop and evolve Nuuly’s stable, scalable services platform. Responsibilities include designing and delivering features, collaborating with product and QA teams, contributing to architecture and roadmaps, supporting deployments, and participating in technical decision-making. The role requires JVM development, cloud and Kubernetes integration, streaming and distributed-systems knowledge, testing expertise, and the ability to provide technical leadership and mentorship.

Performs manual and automated end-to-end testing for iOS and web applications. Designs and maintains WebdriverIO automation scripts, executes functional, regression, and integration tests, reports and tracks defects, and analyzes quality results. Collaborates with developers, product managers, and cross-functional teams on test strategies, documentation, code reviews, and test planning. Supports CI/CD automation integration and continuously improves QA tools, frameworks, and processes.

Develop, test, document, deploy, and maintain software applications using engineering best practices. Collaborate with Scrum team members, developers, quality engineers, operations, and support engineers to deliver reliable solutions. Participate in software development planning, design discussions, process improvement, continuous integration and deployment, automation, and legacy code modernization. Apply object-oriented design, data structures, algorithms, RESTful services, unit testing, and Agile development practices while protecting confidential information.

Design, develop, test, deploy, and support enterprise applications and databases. Translate business requirements into maintainable code, integrate third-party solutions, participate in design and code reviews, resolve complex technical issues, mentor junior staff, and ensure compliance with IT and security policies.

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 and develops enterprise-scale, cloud-native software platforms supporting resiliency intelligence, synthetic monitoring, automation, and operational intelligence. Builds APIs, integrations, event-driven architectures, AI-enabled agents, and automated validation capabilities. Partners with SREs, architects, product owners, and engineering teams; contributes to architecture, observability, reliability, testing, production support, code reviews, and mentoring.

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.

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.

Develop and deploy full-stack software for mission-critical space systems. Responsibilities include implementing features independently, writing unit and integration tests, participating in code reviews, troubleshooting applications, working with RESTful APIs and microservices, deploying to cloud platforms, supporting CI/CD pipelines, collaborating cross-functionally, and mentoring junior engineers.

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.

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.

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.

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

Associate Engineers will develop software applications, participate in Agile practices, and ensure data protection while adhering to coding standards.