What is a Project Manager?

At Castlight, the Project Manager role is pivotal to the company’s mission of helping individuals navigate the complex healthcare system. You act as the strategic engine that drives client implementations, internal initiatives, and product rollouts. This position is not merely about tracking dates; it is about orchestrating cross-functional teams—including Engineering, Customer Success, and Product—to deliver seamless experiences for enterprise clients and their employees.

You will be responsible for managing the full lifecycle of projects, often focusing on the critical phase of onboarding new clients or integrating complex health benefits data. The impact of your work is direct and tangible: successful project management ensures that users gain access to their health benefits without friction. You will navigate the intricacies of healthcare data, manage stakeholder expectations, and translate high-level business goals into actionable execution plans.

This role requires a blend of rigor and adaptability. Castlight operates in a dynamic environment where regulatory requirements and client needs evolve. As a Project Manager, you are expected to bring order to ambiguity, ensuring that despite shifting priorities, the team remains focused on delivering value. It is a role for those who enjoy high-visibility work and thrive on solving logistical and interpersonal puzzles.

Common Interview Questions

These questions are based on real interview experiences from candidates who interviewed at this company. You can practice answering them interactively on Dataford to better prepare for your interview.

Getting Ready for Your Interviews

Preparation for the Castlight Project Manager interview requires a shift in mindset from general project management to specific, client-facing execution. You must demonstrate not just that you can manage a schedule, but that you can lead a team through the hurdles of a complex implementation.

Implementation Strategy – You must demonstrate the ability to take a high-level client request and break it down into a granular, executable timeline. Interviewers will look for your ability to identify critical path items, dependencies, and potential bottlenecks before they occur.

Stakeholder Communication – This is critical at Castlight. You will be evaluated on how you translate technical constraints to non-technical clients and business requirements to engineering teams. Clarity, conciseness, and the ability to manage expectations are paramount.

Presentation Skills – Expect to present your work. You will likely face a specific challenge where you must organize your thoughts into a slide deck. Interviewers assess your ability to synthesize information into a narrative that drives decision-making.

Adaptability and Resilience – The healthcare tech space moves fast, and priorities shift. You need to show that you can pivot quickly without losing momentum. Interviewers will look for evidence of how you handle scope creep, resource constraints, or sudden changes in project direction.

Interview Process Overview

The interview process for a Project Manager at Castlight is structured to test both your organizational competence and your ability to perform under pressure. Historically, the process can move quickly—sometimes concluding in under two weeks—though this depends heavily on team availability and the specific hiring cycle. You should expect a rigorous sequence that moves from behavioral screening to practical application.

After an initial recruiter screen to check your background and interest, you will typically proceed to a phone interview with a hiring manager or team lead. If you pass this stage, you will move to the "onsite" phase (which may be virtual). This final stage is intensive, often involving a panel of 3–4 interviewers, each spending roughly 45 minutes with you. The cornerstone of this stage is a presentation round, where you will be asked to prepare a case study—often a timeline for a new client implementation—and present it to the panel.

This timeline illustrates the progression from initial contact to the final decision. Note the heavy emphasis on the Onsite / Presentation phase. This is the most weight-bearing part of the process. You should use the time between the phone screen and the onsite to meticulously prepare your presentation materials, as this is often where the final hiring decision is made.

Deep Dive into Evaluation Areas

Your interviews will focus on specific competencies that define success at Castlight. Based on candidate experiences, the evaluation is heavily weighted toward practical execution and communication.

Implementation & Timeline Management

This is the core technical skill for the role. You are not just tracking tasks; you are designing the roadmap for success. Interviewers want to see that you understand the mechanics of a project launch from Day 1 to Go-Live.

Be ready to go over:

• Critical Path Analysis – How you identify tasks that directly impact the launch date.
• Dependency Management – How you handle technical dependencies (e.g., data feed integrations) that are outside your direct control.
• Status Reporting – Your specific method for keeping leadership and clients informed (e.g., RAG status reporting).

Example questions or scenarios:

• "Walk us through a timeline you developed for a complex client implementation."
• "How do you handle a situation where an engineering delay threatens the client's go-live date?"
• "Draft a high-level status slide for an executive update on a stalled project."

Client-Facing Communication

Castlight Project Managers often interface directly with external clients. You will be evaluated on your "executive presence" and your ability to deliver bad news constructively.

Be ready to go over:

• expectation Setting – How you prevent scope creep while maintaining a good client relationship.
• Crisis Communication – How you communicate errors or delays to unhappy stakeholders.
• Presentation Structure – The logic and flow of your slide decks.

Example questions or scenarios:

• "A client requests a feature that is not in the scope of the current implementation. How do you handle it?"
• "Present this project plan as if we are the client stakeholders."

Problem Solving in Ambiguity

Candidates have reported that interview questions can sometimes feel open-ended or "confusing." This is often intentional (or a reflection of the environment) to test your ability to drive clarity. You are expected to ask clarifying questions and structure the chaos.

Be ready to go over:

• Requirement Gathering – How you extract clear requirements from vague requests.
• Risk Mitigation – Proactively identifying what could go wrong.

Example questions or scenarios:

• "You are assigned a project with a fixed deadline but undefined scope. What are your first three steps?"
• "Tell me about a time you had to move forward with a project despite missing key information."