Top Software Engineer Jobs in Philadelphia, PA

Leads team to design, develop, and document complex software systems while providing technical guidance and support across multiple teams.

The Software Engineer III will develop PC-based and iOS applications for implantable medical devices, involved in the full product development cycle and compliance with regulations.

The Software Developer will design and maintain financial applications, collaborate with teams to create scalable solutions, and optimize application performance.

The Software Engineer II will develop and maintain high-performing software solutions for FreedomPay's Commerce Platform, focusing on complex integrations and secure systems for payments processing, while working in an Agile environment.

Train large-language models (LLMs) by evaluating, ranking, repairing, and refactoring code. Provide detailed feedback and maintain the RLHF pipeline.

The Software Engineer will analyze, rank, and improve AI-generated code, providing feedback for reinforcement learning in a remote role.

The role involves training large-language models to improve code generation, reviewing and editing AI-generated code, and providing feedback for reinforcement learning refinement.

Develop, test, document, and maintain software as part of a Scrum team following engineering best practices (TDD, CI/CD). Participate in design, support process improvements, and handle legacy code with minimal oversight.

As a Lead Software Engineer, you will enhance the Contracts Platform, develop applications, write tests, and collaborate with teams to implement innovative solutions.

As a Software Engineer at Oncora, you will develop and maintain our data platform, integrating various data sources, optimizing data infrastructure, and enhancing de-identification capabilities for machine learning and clinical research.

Lead technical initiatives in developing cloud-native applications, mentoring engineers, and driving architectural excellence in digital workflow automation for healthcare.

As a Software Engineer, you will help train large-language models in code evaluation and training, focusing on Ruby, with an emphasis on code review and improvement.

Train large-language models to improve code quality by comparing snippets, providing feedback, and refining AI-generated code. Requires strong communication skills and attention to detail.

Leads software application development, from requirements and design to coding and testing, focusing on web applications using Next.js and ASP.NET Core.

Design, develop, test, and debug scalable software systems; make technical trade-offs; build microservices; work with SQL/NoSQL and cloud platforms; mentor junior developers; provide technical support and participate in recruiting and documentation.

The role involves designing, developing, and maintaining complex applications using React and Node.js while collaborating with cross-functional teams and ensuring high-quality releases.

Review, rank, and improve AI-generated code across languages, focusing on Ruby. Repair/refactor code, provide detailed written justifications, and inject ratings/edits/test results into the RLHF pipeline to help train models.

Review, rank, and improve AI-generated code to train LLMs: compare implementations, repair/refactor for correctness, efficiency, and style, and provide detailed feedback for RLHF pipelines. Work asynchronously as a remote contractor, injecting ratings, edits, and test results to improve model outputs.

Review, rank, repair, and refactor AI-generated code to improve correctness, performance, and style. Provide detailed written feedback and edits for RLHF pipelines, converting expert judgments into signals used to train models. Work asynchronously as a remote 1099 contractor.

The Software Developer will design, develop, test, and debug software applications, make technical decisions, and provide customer support, while mentoring junior developers.

Lead forward-deployed engineering within business units, defining technical strategy, delivering high-impact software and ML solutions, mentoring technical leaders, establishing architecture, reliability, and AI-augmented workflows, and handing validated patterns to platform teams for scale.

As an Associate .Net Software Engineer, you will develop software solutions, engage in design discussions, and implement best practices with a focus on automation and security.

Design, build, and operate scalable backend integration services and APIs. Configure and manage Kong API Gateway via declarative YAML and CI/CD. Implement FHIR data facades, backend integrations (REST/gRPC/messaging), OpenAPI-driven lifecycle, automated testing, and secure service-to-service auth (OAuth2/OIDC). Deploy and operate containerized cloud services with observability and reliability patterns.

Design, develop, configure, test, maintain and support payments-related software solutions. Lead engineering efforts, analyze requirements, implement technical solutions, perform peer reviews, provide on-call support, troubleshoot incidents, and coach less-experienced staff.

Develop and operate core data platforms, improve frontend architecture, add functionalities to APIs, integrate data sources, and provide feedback to the team.