Senior Backend Engineer

As a Senior Backend Engineer at Mochi Health, your primary responsibilities include leading the development and optimization of core backend services, particularly using Node/Express. You'll work closely with product, design, and frontend teams to ensure a seamless user experience. Additionally, you will drive best practices for performance, security, and scalability while mentoring junior engineers and making crucial architectural decisions.

To excel as a Senior Backend Engineer at Mochi Health, candidates should have over 7 years of back-end development experience, with a strong expertise in Javascript/Typescript. Familiarity with Kotlin/Swift and modern back-end tooling, such as ESLint and CI/CD pipelines, is also required. Candidates should demonstrate strong problem-solving skills, a startup mindset, and experience in creating scalable, high-performance systems.

Mochi Health primarily utilizes Node/Express for backend services. As a Senior Backend Engineer, you would also be interacting with modern tooling like TypeScript and might have exposure to machine learning algorithms. Familiarity with technologies like WebSockets and real-time data processing would be a bonus, enhancing your effectiveness in the role.

At Mochi Health, we prioritize your professional growth by providing opportunities for mentoring, leading technical initiatives, and being involved in key architectural decisions. By fostering an engineering culture of innovation and collaboration, we encourage our Senior Backend Engineers to continuously learn and apply best practices in backend development.

As a Senior Backend Engineer at Mochi Health, you can expect a comprehensive benefits package that includes robust medical, dental, and vision insurance, a 401(k) plan with company matching, unlimited PTO, wellness programs, and a competitive salary ranging from $350,000 to $400,000, along with equity opportunities.

When asked how to build scalable backend systems, consider outlining your experience and methodologies. Discuss the importance of designing with scalability in mind from the start, using cloud services, optimizing database queries, and implementing load balancing as essential strategies you've utilized.

In an interview, it's crucial to articulate that security is paramount in backend development to protect sensitive data and maintain user trust. Discuss various security best practices you follow, such as validating user inputs, using encryption, and regularly updating dependencies to guard against vulnerabilities.

Here, share a specific experience where you encountered a backend challenge. Discuss the steps you took to identify the issue, the technologies used to tackle it, and the positive outcome that resulted from your problem-solving approach.

Highlight that a Senior Backend Engineer is vital in cross-functional teams by facilitating communication between departments like Product and Design. Discuss how you ensure technical feasibility, align backend capabilities with user needs, and help bridge the gap between different perspectives to deliver integrated solutions.

Discuss the importance of code quality and maintainability by talking about the practices you follow, such as code reviews, implementing automated testing, and adhering to clean coding principles. Explain how these practices ensure long-term project success and ease maintenance.

Discuss tools like TypeScript, ESLint, or CI/CD pipelines that you've utilized. Provide examples of how they've helped you improve coding standards, streamline deployment processes, or enhance collaboration within your development team.

Mentorship is crucial in engineering. Discuss practical strategies such as pairing programming sessions, hosting code review meetings, and offering guidance on best practices to help junior engineers grow and develop their skills effectively.

Emphasize your experience with deployment processes, including CI/CD practices and tools. Discuss how you ensure minimal downtime, conduct thorough testing before releases, and roll back quickly if issues arise post-deployment.

Explain your methods for staying current, such as following industry blogs, participating in tech communities, attending webinars, or pursuing relevant courses. Convey your enthusiasm for continuous learning in the rapidly evolving landscape of backend development.

Tailor your answer to reflect your admiration for Mochi Health’s mission in healthcare innovation. Discuss your excitement about contributing to impactful projects, being part of a collaborative team, and growing within an environment that values professional development and well-being.