Top Remote Software Engineer Jobs in Philadelphia, PA

Design, build, and maintain scalable backend services in Node.js/TypeScript. Collaborate with product and engineering teams, resolve production issues, contribute to architecture and testing, and improve system reliability and code quality across microservices and hardware-integrated systems.

The Backend Developer will build scalable Golang applications, collaborate on product innovations, and ensure code quality through reviews and testing.

Build and maintain full-stack features across frontend and backend. Collaborate with Product and Design, write tests, participate in architecture and code reviews, troubleshoot bugs, and use AI assistants and automations to accelerate development.

Drive full‑stack development of a SaaS EHR platform using Angular and .NET Core. Design and implement scalable APIs and services, influence architecture, own features from design through release, collaborate with engineering, and mentor junior developers to improve performance, reliability, and maintainability.

The Staff Software Engineer will develop and support product features, enforce coding best practices, mentor junior engineers, and contribute to architectural decisions in a fintech environment.

The Sr. Software Engineer will develop and test applications using .NET and SQL, collaborate with teams, ensure quality practices, and maintain technical documentation. They will contribute to software design and process improvements while adapting to changing environments in payment systems.

Build and maintain responsive, accessible front-end interfaces using React, React Native, HTML, CSS, and Shopify. Apply UX/UI principles, collaborate with designers and multidisciplinary teams, provide clear technical feedback, and independently deliver high-quality work on complex technology or AI-related projects. Contractors complete output-based tasks and must meet weekly minimum submission requirements, with an expected start within 24–48 hours of onboarding.

Build and review full-stack software environments for AI training. Develop frontend and backend features, integrate APIs, debug issues across UI and data layers, improve code quality, document technical reasoning, and review peer submissions. The role requires frontend and backend development experience with frameworks such as React or Angular and stacks including Node.js, Python, Java, or Go. Prior AI experience is not required.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Design, build, and maintain backend services and APIs using Ruby on Rails. Improve performance, scalability, reliability, and write well-tested production code. Collaborate with Product, Frontend, Data Engineering, and QA teams.

Design, build, and maintain backend services and APIs using Ruby on Rails. Ensure performance, scalability, reliability, and test coverage. Collaborate with Product, Frontend, Data Engineering, and QA to deliver production-quality code for web and mobile platforms.

The Senior Software Engineer will develop a new Managed Service Provider solution for mobile security, focusing on feature development and complex projects, guiding initiatives from design to deployment.

Lead translation of HR business requirements into technical solution designs, drive full-stack application development and integrations, collaborate with architects and system integrators, manage product backlog and delivery, mentor engineers, and support lifecycle activities for corporate HR systems (custom and SaaS). Focus initially on learning/benefits applications and broader associate-facing HR solutions.