Senior Software Engineer, Full Stack

Modern Health is a mental health benefits platform for employers, offering a comprehensive solution for employee well-being. The Senior Software Engineer (Full-Stack) will design, build, and scale web applications, collaborating with cross-functional teams to deliver high-quality solutions that enhance user experience.

Responsibilities:

• Partner closely with product managers and designers to define and build features that address real user needs and drive meaningful outcomes
• Design, build, and iterate on end-to-end product features, seamlessly connecting backend systems with frontend experiences
• Develop and maintain backend services and APIs (REST and/or GraphQL) that power user-facing applications, as well as service-to-service interactions (both synchronous and asynchronous) across the system
• Build and refine frontend components using modern frameworks (e.g. React), with a focus on usability, performance, and overall user experience
• Model and manage application data using relational databases (e.g. PostgreSQL), ensuring clean, well-structured data design
• Contribute to technical design discussions, shaping pragmatic solutions aligned with product goals
• Collaborate cross-functionally to ensure successful feature delivery, rollout, and continuous iteration
• Mentor engineers and help foster a strong product mindset and user-centric approach across the team

Requirements:

• 3+ years of full-stack software engineering experience building and shipping production web applications
• Strong experience building backend services and APIs, including REST and/or GraphQL
• Strong experience with frontend development in React (or similar modern framework), including component design, state management, and performance optimization
• Experience designing systems with service-to-service communication, including both synchronous and asynchronous patterns
• Solid experience with relational databases, especially PostgreSQL, including schema design and data modeling
• Demonstrated ability to build end-to-end product features from technical design through implementation, rollout, and iteration
• Experience partnering closely with product managers and designers in a product development environment
• Strong skills in technical design, system thinking, and pragmatic problem-solving
• Track record of writing clean, maintainable, well-tested code in a collaborative engineering team
• Experience mentoring engineers and contributing to strong engineering standards and team culture
• Clear focus on user experience, product quality, and customer impact
• Immigration sponsorship is not available for this position. Applicants must be able to maintain work authorization for the duration of employment without employer sponsorship or employer-provided training plans or attestations (including, for example, the Form I-983 required for STEM OPT)