Tendo Software Engineer interview questions & guide 2026

The questions you will encounter during the Tendo hiring process are designed to assess your technical depth, architectural instincts, and behavioral alignment with a fast-paced product organization. These questions are compiled from real interview experiences to help you identify patterns in what the engineering team prioritizes.

System Design & Architecture

These questions evaluate your ability to design scalable, reliable, and secure systems. Expect a focus on real-world constraints, API design, and data flow.

• How do you design a secure, HIPAA-compliant API for sharing patient data between third-party systems?
• Walk me through how you would architect a notification system that handles real-time alerts for patients and clinicians.

Preparing for an interview at Tendo requires a balanced approach. You must demonstrate both high-level system design capabilities and hands-on coding proficiency, while showing that you can navigate a highly collaborative product environment.

Technical Depth & Code Quality – You must show that you write clean, modular, and maintainable code. Your interviewers will look for strong design patterns, proper separation of concerns, and defensive coding practices. Be prepared to explain the "why" behind your technical choices, not just the "how."

Pragmatism & Scope Management – In a fast-growing environment like Tendo, engineers must know when to build a perfect solution and when to deliver a pragmatic, functional one. You will be evaluated on your ability to scope projects effectively, identify edge cases, and make intentional trade-offs under time constraints.

Product Empathy & Communication – Because Tendo focuses heavily on improving the healthcare experience, engineers need to understand the end-user. You should be able to articulate how your technical decisions impact the user experience and demonstrate strong communication skills when presenting your ideas to both engineers and business leaders.

The interview process for a Software Engineer at Tendo is designed to evaluate candidates through multiple lenses, combining high-level leadership discussions with practical hands-on assessments. The process is relatively conversational in its early stages but culminates in a rigorous project-based evaluation.

The journey begins with a brief recruiter screen to align on background, compensation, and role expectations. This is followed by sequential interviews with an Engineering Director and a VP. These conversations are heavily focused on your past experiences, leadership philosophy, and behavioral alignment. Uniquely, you will also participate in an interview with an engineer who will walk you through a live product demo. This session is designed to give you a clear understanding of what Tendo builds and to gauge your product interest and technical curiosity.

The final stage of the process centers around an asynchronous coding project, which you will later present to an engineering panel. This review panel is highly technical and collaborative, simulating what it is like to conduct a design and code review with the team.

The timeline above details the typical progression from the initial recruiter outreach to the final panel review. Candidates should use this visual structure to pace their preparation, ensuring they allocate ample time to both behavioral storytelling in the early stages and high-quality implementation for the take-home project. While the early rounds move quickly, the coding project and subsequent review panel require the most concentrated effort.

To succeed at Tendo, you must understand the specific competencies being evaluated at each key stage of the technical assessment.

Architectural Design & System Integration

Tendo builds platform-level software that integrates with complex hospital systems and electronic health records (EHRs). Interviewers want to see if you can design systems that are resilient, secure, and highly integration-friendly.

Be ready to go over:

• API Design Patterns – Designing clean, RESTful, or GraphQL APIs that are easy for internal and external teams to consume.

If you join Tendo as a Software Engineer, your day-to-day work will bridge the gap between complex backend systems and intuitive frontend experiences. You will be responsible for the end-to-end delivery of key product features.

You will spend a significant portion of your time designing, writing, and reviewing code. This includes developing robust APIs, building reusable UI components, and optimizing database queries. You will work within an agile framework, participating in sprint planning, standups, and retrospective meetings to ensure project timelines are met.

Collaboration is central to this role. You will work closely with:

• Product Management to refine feature requirements and scope technical implementations.
• Design Teams to ensure frontend implementations match high-fidelity mockups and provide an exceptional user experience.
• DevOps and Security to deploy your code safely using modern cloud infrastructure and continuous integration pipelines.
• Other Engineers through constructive code reviews, pair programming, and collaborative architecture discussions.

For Senior and Principal candidates, you will also be expected to drive technical roadmaps, establish coding standards, and mentor mid-level and junior engineers to foster a high-performing engineering culture.

Tendo hires engineers who possess a strong foundation in modern software development practices. The expectations scale with the level of the role (Senior vs. Principal).

Technical Requirements

• Strong Programming Fundamentals – Proficiency in modern backend and frontend languages (such as TypeScript, JavaScript, Node.js, Go, or Python).
• Modern Frontend Frameworks – Experience building responsive, accessible user interfaces using React or similar modern libraries.
• Database Expertise – Hands-on experience with SQL (e.g., PostgreSQL) and NoSQL databases, including schema design and query optimization.
• Cloud Infrastructure – Familiarity with AWS, GCP, or Azure, including containerization (Docker, Kubernetes) and CI/CD pipelines.

Experience & Soft Skills

• Proven Track Record – 5+ years of experience for Senior roles, and 8+ years for Principal roles, preferably building SaaS or platform-level products.

• Architectural Leadership – Ability to lead the design of complex systems from scratch and guide other engineers through the implementation.

• Pragmatic Problem Solving – A history of delivering high-quality software under real-world business constraints.

• Excellent Communication – The ability to clearly articulate technical concepts to both technical and non-technical stakeholders.

• Must-have skills – Strong backend API design, proficiency in at least one major modern language, solid SQL database knowledge, and a strong understanding of web application security.

• Nice-to-have skills – Experience working in healthcare IT (HL7, FHIR standards), building HIPAA-compliant software, or working in early-to-mid-stage startups.

Q: How difficult is the Tendo software engineering interview process? A: The overall difficulty is rated as average, but the level of effort required for the coding project is high. While the behavioral and leadership rounds are conversational and discussion-based, the coding project requires significant attention to detail and a high standard of execution to pass the panel review.

Q: What is the typical timeline from the recruiter screen to an offer? A: The process generally takes 3 to 5 weeks. This timeline depends heavily on how quickly you complete the take-home coding project and the availability of the engineering panel for the review stage.

Q: What are Tendo's expectations regarding remote or hybrid work? A: Tendo has physical offices in Salt Lake City, UT, and San Francisco, CA. Depending on the specific team and seniority level, roles may be hybrid or fully remote within the United States, but candidates located near their primary hubs are highly valued.

Q: How can I stand out during the engineering panel review? A: Treat the coding project review as a collaborative design session. Be exceptionally transparent about the trade-offs you made, proactively point out areas where you would improve the code if given more time, and welcome constructive feedback from the panel.

• Over-deliver on the coding project: The written prompt may downplay the expected effort, but the panel will evaluate your submission with high standards. Treat the "toy" project as a production-grade assignment. Add robust error handling, write clean unit tests, and ensure the UI is polished.

• Clarify the project scope early: If you receive a coding prompt that seems ambiguous or suggests limiting your time, do not hesitate to ask your recruiter or hiring manager for clarification on what the panel values most (e.g., architectural design, test coverage, or feature completeness).

• Prepare detailed behavioral stories: The Director and VP rounds are highly conversational. Use the STAR method (Situation, Task, Action, Result) to describe past projects. Focus on how you managed technical debt, navigated team conflict, or delivered high-impact features under pressure.

• Engage during the product demo: The demo interview with a Tendo engineer is a fantastic opportunity. Do not just sit back and watch; ask deep questions about their tech stack, their integration challenges, and how they handle data synchronization. This shows high curiosity and product empathy.

The Software Engineer role at Tendo offers a unique opportunity to build mission-critical technology that improves the healthcare experience for millions of people. It is a highly collaborative environment where engineers are expected to be both technically rigorous and product-minded. By successfully navigating their structured interview process, you can position yourself for a highly impactful career.

To maximize your chances of success, focus your preparation on two main pillars: structuring compelling behavioral stories that showcase your leadership and pragmatism, and executing a flawless, production-grade coding project. Treat the take-home assignment as a true representation of your engineering standards, and be ready to defend your architectural decisions with confidence and humility.

The salary ranges shown above represent the compensation bands for various engineering levels across Tendo's primary locations in Salt Lake City and San Francisco. When preparing for your offer discussions, consider how your experience level aligns with these bands, and remember that total compensation packages typically include competitive base salaries, equity, and comprehensive benefits. You can explore additional detailed interview insights and community-reported data on Dataford to help you prepare for every stage of the process. Good luck!