Headway - Design & Development Data Analyst interview questions & guide 2026

The following questions are representative of the patterns and themes observed in real reported interview experiences for the Data Analyst position at Headway. While individual interview loops may vary based on team alignment, you should expect a heavy emphasis on SQL proficiency, structured problem-solving, and your ability to defend your past analytical work.

SQL & Technical Data Manipulation

• Write a SQL query using window functions to identify the most recent appointment booked by a patient and calculate the time elapsed since their previous booking.
• Given a table of therapist availability and patient searches, write a query to calculate the weekly conversion rate of searches to booked appointments.
• Explain the difference between a LEFT JOIN and an INNER JOIN in a dataset containing null values, and demonstrate how you would handle deduplication.

To succeed in the Headway interview loop, you must prepare to demonstrate both technical precision and strong communication skills. The hiring team looks for candidates who can not only write clean code but also translate that code into strategic business value.

Technical Rigor – You must demonstrate a strong command of relational databases and SQL. Practice writing clean, optimized queries under time pressure, focusing on window functions, complex joins, and aggregations.

Structured Problem-Solving – When presented with open-ended business cases, you need to apply a structured framework. Avoid diving straight into solutions; instead, clarify assumptions, define key metrics, and walk your interviewer through your analytical roadmap step-by-step.

Cross-Functional Communication – You will collaborate with product managers, engineers, and operations leaders. You must show that you can translate complex statistical and data concepts into clear, actionable recommendations for non-technical stakeholders.

Mission Alignment – Headway is deeply mission-driven. You should be prepared to articulate why you want to work in the mental health tech space and how your personal values align with the company's goal of making quality care accessible.

The interview process for a Data Analyst at Headway is designed to evaluate your technical capabilities, problem-solving structuredness, and cross-functional collaboration. The talent team is generally highly transparent about the stages, sharing information packets and direct links to the tools you will use during technical screens to help you prepare.

The process typically begins with a recruiter screen to discuss your background, compensation expectations, and your alignment with the company's mission. This is followed by a live SQL coding assessment to verify your technical baseline. Successful candidates then move to a comprehensive virtual onsite loop, which includes a case study presentation, a behavioral interview, and a cross-functional collaboration session.

The visual timeline above outlines the standard progression of the hiring loop. Candidates should use this timeline to pace their preparation, ensuring they allocate sufficient time to practice live coding before the technical screen and project defense strategies before the onsite. While the process is designed to move efficiently, scheduling availability can occasionally cause minor variations in the timeline.

Live SQL Coding & Technical Assessment

The live SQL assessment is a one-hour technical screen designed to evaluate your hands-on coding ability. You will work directly with a member of the data team to solve real-world data manipulation problems using a live coding environment.

Be ready to go over:

• Window Functions – Utilizing ROW_NUMBER(), RANK(), and LAG/LEAD to analyze sequential patient events.
• Complex Aggregations – Grouping and filtering data using HAVING clauses and conditional logic within SUM or COUNT statements.

As a Data Analyst at Headway, your daily responsibilities will revolve around translating raw data into strategic execution. You will be embedded within a product or operational team, serving as the primary data partner for key decision-makers.

Your primary deliverables will include building and maintaining core dbt models, developing intuitive Looker dashboards, and conducting deep-dive analyses to uncover growth opportunities. You will collaborate closely with data engineers to ensure the reliability of upstream data pipelines and with product managers to define the tracking requirements for new feature launches.

Additionally, you will play an active role in democratizing data across the company. This involves training non-technical team members on self-serve BI tools, establishing data documentation standards, and ensuring a high level of data literacy across your partner teams.

To be competitive for the Data Analyst position at Headway, you should possess a strong foundation in modern data stack technologies and a proven track record of driving business impact.

• Must-have skills – Advanced proficiency in SQL, experience building production-grade data models (ideally using dbt), and hands-on experience with business intelligence platforms like Looker or Tableau.
• Nice-to-have skills – Proficiency in Python or R for advanced statistical analysis, experience working with snowflake or similar cloud data warehouses, and prior experience in healthcare tech or two-sided marketplace dynamics.
• Experience level – Typically requires 3+ years of professional experience in a dedicated data analytics or business intelligence role, with a demonstrated history of partnering directly with product or operations teams.
• Soft skills – Exceptional written and verbal communication, a proactive approach to solving ambiguous problems, and the emotional intelligence required to navigate constructive technical critiques.

Q: How difficult is the SQL assessment? A: The live SQL assessment is rated as average to easy for experienced analysts. It focuses on practical, real-world data manipulation rather than abstract algorithmic puzzles. Preparing window functions, CTEs, and complex joins will make you highly competitive.

Q: What is the purpose of the cross-functional interview? A: This round evaluates how you collaborate with non-technical teams and how you handle professional disagreement. Expect the interviewer to dive deep into the technical details of your past projects and challenge your decisions to assess your adaptability and communication under pressure.

Q: How long does the entire hiring process take? A: The process typically takes between three to four weeks from the initial recruiter screen to the final decision. Headway aims to move successful candidates quickly through the stages, though scheduling availability can sometimes introduce minor delays.

Q: What is unique about Headway's reference stage? A: Headway conducts a highly thorough and in-depth reference check process. They look to speak with past managers and peers to gain a deep understanding of your working style, strengths, and areas of growth before finalizing an offer.

• Master your "Why Headway" pitch: The recruiting team places immense value on mission alignment. Be ready to explain why you are passionate about the mental health tech space and how your skills can help solve systemic healthcare challenges.

• Prepare a detailed project walkthrough: For your cross-functional and behavioral rounds, select a past project where you had complete ownership. Be ready to discuss the business impact, the technical decisions you made, the trade-offs involved, and how you handled stakeholder pushback.

• Keep your case study focused: During the live case study, do not try to solve every hypothetical problem at once. State your assumptions clearly, choose a structured path, and focus on delivering a specific, actionable answer to the core question.

A Data Analyst role at Headway offers an exciting opportunity to leverage your analytical skills to solve some of the most pressing challenges in the mental healthcare system. By combining technical rigor with a deep understanding of product and operational metrics, you can directly influence how thousands of patients access care.

To maximize your chances of success, focus your preparation on mastering advanced SQL concepts, structuring your approach to open-ended business cases, and refining your ability to communicate complex technical decisions to cross-functional partners. Approach the interview process as a mutual evaluation of fit, leveraging the transparency of the Headway talent team to ask thoughtful questions about their data stack, team culture, and business roadmap.

For additional salary data, community insights, and comprehensive interview preparation resources tailored to top tech companies, explore the detailed guides available on Dataford.

The compensation insights above represent the competitive salary packages offered for this role. When evaluating an offer, consider the entire package, including equity and benefits, in relation to your experience level and the high-impact nature of the work you will be driving at Headway.