Top Software Engineer Jobs in Philadelphia, PA

Build and maintain Airbnb’s cloud infrastructure platform, including developer APIs, CLIs, Kubernetes automation, service provisioning, autoscaling, multi-region capabilities, and AI-native agent workflows. Improve platform reliability, security, scalability, and developer experience; contribute to open-source infrastructure projects; debug production issues; and collaborate with engineering teams across Airbnb.

Build and operate custom data applications and AI agents for mid-market clients. Own engagements end to end, including discovery, system design, coding, deployment, production iteration, and client demos. Develop LLM features, establish AI-native engineering practices, deploy reliable applications across cloud platforms, create reusable components, and help shape the technical stack, processes, and growing engineering team.

Build, maintain, and test high-performance blockchain components for Injective’s Cosmos-SDK protocol, including orderbook, trade execution, order matching, and Layer-2 systems. Develop open-source Go clients and REST/WebSocket APIs for exchange users and programmatic traders. Candidates need strong Go experience, blockchain knowledge, computer science fundamentals, and familiarity with Geth or Erigon. Cosmos-SDK, Tendermint, Ethereum, Solidity, Layer-2, and financial markets experience are preferred.

Develops, tests, deploys, maintains, and improves .NET web applications for a federal government client. Translates user stories into software, designs application components and data models, develops vendor interfaces, performs code reviews, monitors system metrics, and creates technical and user documentation. The role participates in Agile processes, supports reporting requests, maintains existing systems, and contributes to software delivery and continuous improvement. Candidates need at least two years of .NET development experience and must be able to obtain Public Trust clearance.

Design and maintain AI agents, automated workflows, connectors, and middleware for software integration, release readiness, testing, and deployment. Build a structured software knowledge base and integrate systems including Jira, Confluence, GitHub, Microsoft 365, and Monday.com. The role requires automating ambiguous software management processes, ensuring observability and error handling, and collaborating across teams. This is a full-time remote position, with a preferred location in the San Francisco Bay Area.

Own products and features end to end, from user research and ideation through MVP launches, iteration, pricing, and ongoing success. Build full-stack experiences, collaborate with design, support customers, resolve production issues, participate in on-call rotations, and write documentation. The role emphasizes autonomous product development, agent-facing software, AI-native products, and rapid shipping.

Develop and maintain Amazon Connect cloud contact center solutions for DoD and DHA healthcare operations. Responsibilities include IVR and call routing, Amazon Lex conversational AI, AWS serverless development, Salesforce Health Cloud integrations, APIs, testing, Tier 3 support, troubleshooting, Agile delivery, CI/CD, documentation, and compliance with government cybersecurity and privacy requirements.

Design and deliver production-grade backend systems powering Temporal Cloud namespaces, audit logs, export, and data products. Architect scalable data pipelines and storage systems, establish data quality and observability standards, lead technical direction, improve reliability and incident response, collaborate cross-functionally, and mentor engineers. The role emphasizes distributed systems, operational excellence, customer experience, and resilient cloud architectures.

Develop software, AI-assisted tools, simulations, analytics, and decision-support algorithms for subsea optical communication systems. Optimize EDFA and Raman backhaul links, assess cable aging, recommend remediation and retesting, automate cable upgrades, and support commissioning and network operations. Collaborate with optical, systems, DSP, and software engineers, interface with customers, demonstrate solutions, and evaluate AI-generated code for correctness, scalability, and maintainability.

Develops, tests, documents, maintains, and enhances software solutions using Appian and related technologies. Integrates Appian with external systems and services, resolves technical problems, remediates security vulnerabilities, improves performance, and participates in planning and user-story analysis. The role follows software development processes, documents standards, and mentors engineers while helping prioritize work for a development team.