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.

Participate in a 10-week IT internship supporting technical projects, coding assignments, software development, debugging, testing, documentation, and daily team collaboration. Build dashboards and reports for business stakeholders while learning development tools and pharmaceutical-industry technology practices. The role emphasizes front-end development using Angular, Bootstrap, HTML, CSS, JavaScript, TypeScript, SQL, and RESTful APIs, along with communication, teamwork, analytical problem-solving, organization, and project management skills.

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.

Develop and modernize web applications using C#, .NET, and Angular while applying Agile and DevSecOps practices. Build CI/CD pipelines, containerize applications with Docker and Kubernetes, integrate security scanning and secrets management, and support database-backed software development using Oracle and PL/SQL. Collaborate with architects, project leads, analysts, and development teams to transform legacy systems for a Defense Logistics Agency medical logistics program.

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 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.

Build and maintain metadata capture, transformation, and delivery pipelines for a data management platform. Develop backend services with Python, Java, and Node.js; integrate relational databases and REST APIs; implement Terraform infrastructure; and support GitLab CI/CD. Optimize distributed systems for performance, reliability, scalability, and secure asynchronous processing. Write automated tests, troubleshoot services using operational metrics, and contribute to AI/ML metadata pipelines, search, data lake, and LLM-powered initiatives.

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.

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.

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.

Leads complex software architecture, development, modernization, integrations, and production problem resolution. Establishes engineering standards and reusable patterns, provides technical direction across systems and teams, reviews designs, mentors engineers, influences roadmaps, and advises leadership on technical risks and tradeoffs. Requires deep Oracle E-Business Suite, PL/SQL, database programming, financial systems, banking integrations, and software development expertise.

Owns application architecture, shared frameworks, technical standards, and production code across backend, IoT, and customer-facing systems. Leads modernization from PHP to C#/.NET cloud-native services on Azure, including AKS, messaging, APIs, observability, and CI/CD. Provides technical mentorship and limited line management while partnering with PMO, infrastructure, and engineering leadership. Builds production agentic AI workflows using agent frameworks, RAG, tool calling, and MCP, with strong emphasis on reliability and governance.

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.

Creates and maintains test plans, scripts, and reports; establishes test environments; performs regression testing; deploys software releases; tracks defects in JIRA; supports lottery gaming applications; maintains balancing procedures; and collaborates with systems and operations teams. The role is fully onsite in Middletown, Pennsylvania, and requires knowledge of Linux, SQL, Windows Active Directory, hardware, and operating systems.

Leads the design, development, integration, modernization, and support of enterprise healthcare applications and platforms. Develops SQL Server databases, healthcare EDI/X12 integrations, Azure APIs, and Python/Django applications. Provides technical leadership and mentorship, reviews architecture and code, resolves production issues, supports interoperability and automation, and coordinates deployments and operational support. Collaborates with stakeholders, vendors, and IT leadership while ensuring HIPAA, security, and regulatory compliance.

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.