Top Software Engineer Jobs in Philadelphia, PA

Lead the development of high-performance software systems, mentor junior engineers, and contribute to technology strategy while ensuring scalable and maintainable solutions.

Founding iOS Engineer to build the app's core intelligence layer. Must implement production CallKit and on-device continuous Speech Framework recognition, integrate with SwiftUI/CoreData, and optionally add Dynamic Island Live Activity via WidgetKit. Equity-only founding role; product details under NDA.

Drive technical direction and architecture across teams for enterprise retail software. Improve platform reliability and performance, scope customer-facing features, mentor engineers, de-risk large work, and embed AI-native practices (LLMs/agents) into engineering workflows.

Design, develop, and maintain Appian low-code applications; implement features from backlog; unit test and peer-review code; collaborate with functional, testing, and Agile teams; estimate sprint work; present demos; mentor junior developers and share best practices.

Lead backend development for the Booking Engine squad: design and implement PHP features, build APIs, model reservation data, improve scalability, performance, and reliability, migrate to microservices/event-driven architecture, mentor engineers, and promote testing and engineering best practices.

Design, build, and maintain high-quality Android/iOS mobile applications integrated with OXIO's telecom platform. Contribute to architecture, write reusable/testable code, optimize performance, implement automated tests, troubleshoot across devices, and support CI/CD and releases while collaborating with backend and platform teams.

Build scalable backend services and data pipelines to process large healthcare datasets, integrate and optimize LLM-driven features, implement observability and best practices, collaborate across frontend, data, and AI teams, and own end-to-end feature delivery for production systems.

Build and maintain cloud-native full-stack web applications and an automated workflow engine that orchestrates web apps, RPA pipelines, and AI-driven agents. Scale high-availability backend workers, integrate AI prototypes into production, implement monitoring and CI/CD, and mentor junior engineers while collaborating across product and data teams.

As a Customer Engineer, you'll implement AI solutions for contact centers, collaborate on integrations, and enhance customer success through technical solutions.

Design, build, and maintain scalable, low-latency data integration and pipeline platforms. Provide solution and application design, implement high-performance backend services, drive API-first architecture, conduct code reviews, support CI/CD and observability, participate in on-call rotations, lead technical workshops, and mentor junior engineers while collaborating with global stakeholders.