Top Software Engineer Jobs in Philadelphia, PA

Design, develop, test, audit, and deploy smart contracts and dApps. Integrate wallets, blockchain APIs, and Web3 infrastructure. Optimize for performance and gas efficiency, collaborate with cross-functional teams, monitor production systems, research emerging protocols, and document technical specifications.

Leads enterprise geospatial, GIS, digital, and AI innovation across six practice groups. Designs geodatabases, web applications, dashboards, digital-twin platforms, field-data pipelines, and analytical automation using Esri technologies, Python, SQL, JavaScript, and FME. Evaluates emerging GeoAI, cloud, reality-capture, and immersive technologies; establishes governance and QA/QC standards; trains and mentors staff; and represents the firm with clients and industry audiences.

Lead development of scalable backend services and data platforms using Scala and Rust. Design distributed systems, APIs, data pipelines, and security-data workflows; guide Scala-to-Rust migration; support Python-based malware analysis, threat detection, and machine learning systems. Own production reliability, architecture, code quality, reviews, deployment, observability, and incident response in a cloud-native environment.

Build and operate backend services for stablecoin payments, including deposits, withdrawals, on/off ramps, wallets, and virtual accounts. Integrate crypto partners with existing banking, ledger, and payment systems while developing KYB and compliance workflows. Own projects from design through production, ensure reliable money movement, influence technical direction, collaborate cross-functionally, and mentor engineers.

Design, operate, and troubleshoot large-scale multi-vendor IP networks, Wi-Fi deployments, and authentication systems. Build Python, Bash, and vendor API automation for provisioning, configuration, diagnostics, and lifecycle management. Progressively develop software services integrating with network infrastructure using REST APIs, Linux, containers, and AWS. Serve as the network protocols subject-matter expert, support architectural and security reviews, document standards, mentor teammates, and participate in Agile development and on-call rotation.

Own end-to-end full-stack development across web applications, Chrome extensions, mobile platforms, and backend services. Build scalable React interfaces and Node.js microservices handling large datasets and concurrent requests. Translate customer needs into technical solutions, integrate APIs, create workflows and schemas, and deliver iterative, high-quality features. Collaborate autonomously with product and remote engineering teams while supporting post-launch improvements.

Develop and launch scalable full-stack web applications using PHP, Laravel, SQL, JavaScript, React, and related technologies. Responsibilities include building APIs, designing database schemas, optimizing queries and code, implementing secure and maintainable software, collaborating cross-functionally, mentoring junior developers, and owning features through production in an agile continuous-deployment environment.

Assists with designing, implementing, debugging, and maintaining software code. Participates in code reviews, QA efforts, documentation, Agile ceremonies, and collaborative problem-solving while developing foundational software engineering skills.

Designs, develops, maintains, and supports healthcare application integrations and EHR connectivity. The role works with HL7, FHIR, REST, XML, JSON, Java, JavaScript, and integration engines such as Rhapsody or Mirth. Responsibilities include interface governance, authentication and security strategy, monitoring, troubleshooting, testing, change management, documentation, stakeholder communication, and occasional on-call production support.

Develop scalable, engaging web applications for millions of users using React, TypeScript, and related technologies. Collaborate with product, UX, and engineering teams to design features, improve code quality, implement automated testing, optimize performance and accessibility, and support reliable distributed systems. Participate in pair programming, incident management, on-call responsibilities, and technical mentorship while evaluating new technologies and resolving blockers.