SharePoint Developer Interview Questions
Prepare for your SharePoint Developer interview. Understand the required skills and qualifications, anticipate the questions you may be asked, and study well-prepared answers using our sample responses.
Interview Questions for SharePoint Developer
Walk me through how you’d design and deliver a custom workflow-driven solution in SharePoint Online, from intake to deployment.
What has been your experience building SPFx web parts or extensions, and what practices do you follow to keep them performant and maintainable?
SharePoint’s list view threshold can be limiting. How do you architect data and UX to handle very large lists and libraries effectively?
Can you explain how you design a SharePoint permission model that balances security with ease of collaboration?
Tell me about a migration you led or supported to SharePoint Online—what approach, tools, and pitfalls did you encounter?
If you were tasked with automating a cross-department document approval, how would you choose between Power Automate, SPFx, and Azure Functions?
What’s your process for provisioning repeatable site structures, lists, and policies at scale?
When would you call Microsoft Graph versus the SharePoint REST API, and how do you handle authentication in SPFx?
Walk me through how you debug a tricky client-side issue in SharePoint Online that only reproduces in production.
How have you customized search in SharePoint—schema, verticals, or custom search web parts—to help users find content?
What is your approach to content types, site columns, and managed metadata to build a resilient information architecture?
How does developing for SharePoint Online differ from on‑premises, and how does that change your approach?
How do you set up CI/CD for SPFx solutions and manage versions across dev, test, and production tenants?
What security and compliance considerations do you keep in mind when building SharePoint solutions at a startup handling customer data?
Tell me about a time you turned a vague business request into a concrete SharePoint solution. How did you clarify requirements and manage scope?
In a startup, roles often blur. How comfortable are you wearing multiple hats—developer, light admin, trainer—and where have you done that before?
With limited resources and many asks, how do you prioritize what to build first on SharePoint?
What kind of team culture helps a SharePoint developer thrive in an early-stage company, and how would you contribute to it?
How do you stay current with Microsoft 365 and SharePoint changes, and decide what to adopt versus wait on?
Describe a time production SharePoint had a critical issue. How did you triage, communicate, and resolve it quickly?
If we asked you to deliver an MVP onboarding portal in two weeks, what would you include and what trade-offs would you make?
What’s your opinion on when to use Power Apps for forms versus custom SPFx forms or list form customizers?
Why are you excited about building SharePoint solutions at our startup specifically?
What is your approach to code quality, testing, and documentation so a small team can support solutions long-term?
-
Walk me through how you’d design and deliver a custom workflow-driven solution in SharePoint Online, from intake to deployment.
Employers ask this question to assess your end-to-end delivery skills, not just coding. In your answer, outline requirements gathering, information architecture, solution options (SPFx vs Power Platform), security, testing, and deployment. In your answer, show you can make pragmatic trade-offs and communicate with stakeholders along the way.
Answer Example: "I start with a quick discovery to map the process, data, and personas, then model metadata with content types and the term store. For automation, I default to Power Automate for speed and maintainability, and use SPFx where custom UI or complex logic is needed. I set up a dev/test site, implement role-based permissions, and validate with user UAT scripts. Finally, I deploy via app catalog and solution packages, and provide a simple runbook and quick training video."
Help us improve this answer. / -
What has been your experience building SPFx web parts or extensions, and what practices do you follow to keep them performant and maintainable?
Employers ask this question to gauge depth with the modern SharePoint development stack. In your answer, mention frameworks (React/Fluent UI), PnP libraries, performance techniques, and patterns for state management and API calls. In your answer, include testing and deployment considerations.
Answer Example: "I build SPFx React web parts using Fluent UI and @pnp/sp for clean data access, and I lazy-load heavy modules to keep bundle size small. I centralize API calls, cache read-most data, and use web part properties for configurability. I unit test utilities, validate with page performance tools, and deploy via a CI pipeline that bumps versions and publishes to the tenant app catalog."
Help us improve this answer. / -
SharePoint’s list view threshold can be limiting. How do you architect data and UX to handle very large lists and libraries effectively?
Employers ask this question to see if you can design around platform limits without hacks. In your answer, discuss indexed columns, filtered default views, folders vs metadata, search-driven experiences, and de-normalizing where appropriate. In your answer, cite techniques like using KQL, PnP Modern Search, or splitting data across sites when needed.
Answer Example: "I design views that index and filter on selective columns, and avoid fetching unindexed fields in default views. For discovery, I prefer search-driven web parts with KQL and refiners, and I use Power Automate to pre-compute rollups. If a list grows too large, I partition by site or library per year or business unit and standardize content types and metadata across them via PnP provisioning."
Help us improve this answer. / -
Can you explain how you design a SharePoint permission model that balances security with ease of collaboration?
Employers ask this question to ensure you understand SharePoint’s security model and can avoid permission sprawl. In your answer, cover inheritance, SharePoint groups, Azure AD groups, and when to break inheritance. In your answer, show how you handle external access, sensitivity labels, and least privilege.
Answer Example: "I default to inheritance at the site level, mapping roles to Azure AD groups to keep lifecycle clean. I break inheritance only at document library or folder level for clear, justified cases and avoid item-level permissions except for regulated content. For external sharing, I pair site sharing policies with sensitivity labels and use sharing links with expiration. I also run periodic permission reviews and export audits for owners."
Help us improve this answer. / -
Tell me about a migration you led or supported to SharePoint Online—what approach, tools, and pitfalls did you encounter?
Employers ask this question to validate hands-on experience with real-world constraints and cleanup. In your answer, cite tools (SharePoint Migration Tool, Mover, third-party), content assessment, mapping file shares to metadata, and communication. In your answer, mention handling path/URL limits, versions, and user adoption.
Answer Example: "I led a file share to SPO migration using the SharePoint Migration Tool after a content inventory and ROT analysis. We defined content types and site templates, mapped folders to metadata, and set up hub sites for navigation. I addressed path limits by flattening deep trees, preserved permissions where appropriate, and ran pilots before the bulk move. We wrapped up with targeted training and a support channel to drive adoption."
Help us improve this answer. / -
If you were tasked with automating a cross-department document approval, how would you choose between Power Automate, SPFx, and Azure Functions?
Employers ask this question to see your solution selection criteria and cost/maintainability mindset. In your answer, compare complexity, user experience needs, governance, and long-term support. In your answer, show you favor low-code where it fits, and augment with code for gaps.
Answer Example: "I start with Power Automate for routing, approvals, and notifications because it’s fast to build and easy for admins to maintain. If I need a custom UI or complex validation, I add an SPFx form customizer or web part. For heavy integrations or secure app-only operations, I offload logic to an Azure Function with app registration and call it from the flow or SPFx using Graph."
Help us improve this answer. / -
What’s your process for provisioning repeatable site structures, lists, and policies at scale?
Employers ask this question to assess your automation and governance maturity. In your answer, discuss PnP provisioning templates, PnP PowerShell, site scripts/designs, and hub associations. In your answer, include how you manage versioning and rollback.
Answer Example: "I define site templates using PnP provisioning and site scripts for out-of-the-box elements, version them in Git, and deploy via PnP PowerShell in a pipeline. The template includes content types, lists, themes, policies, and hub association. I run pre-checks for existing artifacts, log operations, and keep a rollback script to remove or revert changes if needed."
Help us improve this answer. / -
When would you call Microsoft Graph versus the SharePoint REST API, and how do you handle authentication in SPFx?
Employers ask this question to confirm API fluency and security practices. In your answer, explain that SharePoint REST is great for site/list/file operations, while Graph is best for cross-M365 data. In your answer, mention using AadHttpClient or MSGraphClient, delegated vs app-only permissions, and consent via the tenant admin.
Answer Example: "I use SharePoint REST for list CRUD, files, and search-specific endpoints, and Graph when I need cross-service data like users, Groups/Teams, or calendars. In SPFx, I use AadHttpClient or MSGraphClient with delegated permissions and request admin consent for scopes via the app catalog. For server-side or background tasks, I prefer app-only with Azure AD apps and certificate auth."
Help us improve this answer. / -
Walk me through how you debug a tricky client-side issue in SharePoint Online that only reproduces in production.
Employers ask this question to understand your troubleshooting discipline under constraints. In your answer, talk about reproducible steps, feature toggles, correlation IDs, browser dev tools, and logging strategies that respect PII. In your answer, include using tenant ULS-equivalent signals like the Health dashboard or capturing telemetry with Application Insights.
Answer Example: "I first reproduce with the same tenant features and permissions, then add telemetry to the SPFx component using App Insights and correlation IDs. I check network traces for throttling, CORS, or 429s and verify list view or web part configuration differences. If needed, I ship a feature-flagged build to a staging page in production to isolate the issue safely before rolling out a fix."
Help us improve this answer. / -
How have you customized search in SharePoint—schema, verticals, or custom search web parts—to help users find content?
Employers ask this question to see if you can drive findability beyond default settings. In your answer, cover crawled/managed properties, result sources, KQL, and PnP Modern Search components. In your answer, mention governance around what gets indexed and user training on refiners.
Answer Example: "I map key metadata to managed properties, create result sources, and use KQL to boost what matters, like recently modified approved documents. I often implement PnP Modern Search with refiners and a custom result template for business fields. I also ensure sensitive libraries are set to not index where required and include a quick tip sheet so users know how to filter effectively."
Help us improve this answer. / -
What is your approach to content types, site columns, and managed metadata to build a resilient information architecture?
Employers ask this question to verify that you can design structures that scale and survive changes. In your answer, discuss hub site content types, the term store, reuse vs duplication, and avoiding breaking changes. In your answer, include how you plan for lifecycle and retention.
Answer Example: "I create enterprise content types at the hub or tenant level and push them to sites so we get consistency with flexibility. I leverage the term store for shared vocabularies and avoid renaming or deleting fields in ways that break bindings, instead using new versions and migration scripts. I align metadata with retention labels so compliance runs in the background without burdening users."
Help us improve this answer. / -
How does developing for SharePoint Online differ from on‑premises, and how does that change your approach?
Employers ask this question to confirm you understand platform constraints and the modern development model. In your answer, note the shift from full-trust server-side code to client-side SPFx, app models, and cloud governance. In your answer, mention throttling, evergreen updates, and the need for CI/CD and feature flags.
Answer Example: "In SharePoint Online, I avoid server-side code and build with SPFx, Power Platform, and cloud services like Azure Functions. I design for evergreen change, with feature flags and semantic versioning, and I respect throttling by batching calls and caching. I also follow tenant governance for app permissions and consent, and automate deployments to reduce risk."
Help us improve this answer. / -
How do you set up CI/CD for SPFx solutions and manage versions across dev, test, and production tenants?
Employers ask this question to ensure you can ship reliably and repeatedly. In your answer, cover Git branching, package versioning, gulp/webpack builds, and pipelines in Azure DevOps or GitHub Actions. In your answer, mention app catalog deployment, tenant-scoped vs site-scoped, and approvals.
Answer Example: "I use trunk-based development with short-lived branches, semantic versioning, and automated builds that run tests and bundle/package the sppkg. The pipeline publishes to a staging app catalog for validation, then promotes to prod with a manual approval gate. I keep environment-specific settings in tenant properties and use site-scoped deployments unless there’s a clear case for tenant-scoped."
Help us improve this answer. / -
What security and compliance considerations do you keep in mind when building SharePoint solutions at a startup handling customer data?
Employers ask this question to test your security mindset under real-world constraints. In your answer, discuss least privilege, data residency, sensitivity labels, DLP, and secure secret handling. In your answer, include logging/auditing and privacy-by-design.
Answer Example: "I implement least privilege using Azure AD app permissions and avoid storing secrets in code, using Key Vault or tenant properties instead. I align sites and libraries with sensitivity labels and DLP policies and ensure external sharing is scoped. I log access and critical actions with correlation IDs and keep PII out of logs, and I document data flows for audits."
Help us improve this answer. / -
Tell me about a time you turned a vague business request into a concrete SharePoint solution. How did you clarify requirements and manage scope?
Employers ask this question to see your consulting and product-thinking skills. In your answer, describe discovery workshops, prototypes, and defining must-haves vs later phases. In your answer, show how you set expectations and avoid scope creep.
Answer Example: "A team asked for a “portal to track everything.” I ran a 60-minute workshop to map processes and artifacts, then proposed an MVP with a hub site, three libraries with content types, and a simple approval flow. We validated with a clickable mock and agreed on a backlog for later features like dashboards, which I scheduled into subsequent sprints."
Help us improve this answer. / -
In a startup, roles often blur. How comfortable are you wearing multiple hats—developer, light admin, trainer—and where have you done that before?
Employers ask this question to assess flexibility and ownership. In your answer, share concrete examples of switching modes and the impact. In your answer, note any boundaries where you’d pull in help (e.g., deep tenant admin tasks).
Answer Example: "At my last startup, I built SPFx components, set up PnP provisioning, and also ran short training sessions and office hours post-launch. I handled app catalog management and permissions reviews, and escalated complex tenant policies to our M365 admin. That mix kept delivery fast and feedback tight."
Help us improve this answer. / -
With limited resources and many asks, how do you prioritize what to build first on SharePoint?
Employers ask this question to understand your product judgment and focus. In your answer, talk about impact vs effort, risks, and aligning with company goals. In your answer, mention choosing low-code for speed when appropriate.
Answer Example: "I prioritize by business impact and time-to-value, selecting the smallest slice that solves a real pain point. I’ll use Power Automate or out-of-the-box features first, reserving custom SPFx for clear gaps. I make trade-offs explicit with stakeholders and commit to a short feedback loop before adding scope."
Help us improve this answer. / -
What kind of team culture helps a SharePoint developer thrive in an early-stage company, and how would you contribute to it?
Employers ask this question to see if you’ll elevate culture, not just write code. In your answer, mention documentation, knowledge sharing, blameless postmortems, and bias for action. In your answer, describe simple rituals you’d introduce.
Answer Example: "I thrive in a culture that values short feedback cycles, lightweight documentation, and blameless retros. I contribute by maintaining a living wiki of patterns (e.g., PnP templates, flow snippets), hosting quick show-and-tells, and keeping a tidy backlog. I also advocate for small experiments before big bets."
Help us improve this answer. / -
How do you stay current with Microsoft 365 and SharePoint changes, and decide what to adopt versus wait on?
Employers ask this question to confirm you can navigate an evergreen platform. In your answer, cite specific sources and preview programs. In your answer, explain how you assess stability, supportability, and ROI.
Answer Example: "I follow the M365 Message Center, Roadmap, PnP community calls, and the SharePoint Developer Blog, and I test new features in a sandbox. I evaluate adoption based on maturity, admin controls, and impact on our existing patterns. If a feature is still evolving, I design an opt-in pilot with a rollback plan."
Help us improve this answer. / -
Describe a time production SharePoint had a critical issue. How did you triage, communicate, and resolve it quickly?
Employers ask this question to evaluate your calm under pressure and communication. In your answer, outline your incident steps, stakeholder updates, and postmortem. In your answer, mention how you prevent recurrence.
Answer Example: "When an SPFx extension caused page loads to hang, I used the tenant app catalog to retract the package and restored stability within minutes. I posted status updates in Teams, shipped a hotfix behind a feature flag, and later ran a postmortem to add smoke tests and performance budgets. We also set up health alerts and improved our rollback procedures."
Help us improve this answer. / -
If we asked you to deliver an MVP onboarding portal in two weeks, what would you include and what trade-offs would you make?
Employers ask this question to see your MVP mindset and ability to ship fast. In your answer, focus on essentials and supportability. In your answer, call out what you’d defer and why.
Answer Example: "I’d deliver a hub-connected site with a checklist list, a documents library with templates, a FAQ page, and a Power Automate flow for manager approvals. I’d use OOTB web parts and a light SPFx component only if necessary. I’d defer advanced search, analytics, and custom branding to phase two, and schedule user feedback after week one."
Help us improve this answer. / -
What’s your opinion on when to use Power Apps for forms versus custom SPFx forms or list form customizers?
Employers ask this question to assess your tool selection judgment. In your answer, compare speed, complexity, performance, and UX constraints. In your answer, include governance and long-term maintainability.
Answer Example: "For simple to medium complexity with quick delivery, I choose Power Apps customized forms. If I need complex validation, offline-ready logic, or a pixel-perfect UX embedded in modern pages, I build an SPFx form customizer or web part. I also consider licensing, performance on large data sets, and who will maintain the form over time."
Help us improve this answer. / -
Why are you excited about building SharePoint solutions at our startup specifically?
Employers ask this question to test motivation and mission alignment. In your answer, tie your skills to the company’s domain and stage, and mention the appeal of impact and ownership. In your answer, show you’ve researched the product and users.
Answer Example: "Your product focuses on streamlining B2B workflows, which aligns with the process automation and knowledge portals I’ve built. I’m excited to own the M365/SharePoint stack end-to-end and directly improve employee productivity as we scale. The startup pace and close user feedback loop fit how I like to work."
Help us improve this answer. / -
What is your approach to code quality, testing, and documentation so a small team can support solutions long-term?
Employers ask this question to ensure sustainability beyond the initial build. In your answer, cover linting, unit tests, feature flags, and simple docs/runbooks. In your answer, mention knowledge transfer and onboarding.
Answer Example: "I enforce linting and formatting, write unit tests for utilities, and guard risky features with flags. I produce a lightweight README and support runbook per solution, covering configuration, permissions, and rollback. I also record a short demo and keep an internal pattern library so others can extend or fix components confidently."
Help us improve this answer. /