agile and scrum methodology experience

Agile

  • Agile is a software development methodology that emphasizes iterative development, collaboration, customer feedback, and flexibility to adapt to change.

  • Instead of delivering a full product at the end, Agile delivers in small, usable increments.



Scrum (a type of Agile framework)

  • Scrum is the most widely used Agile framework.

  • Scrum is a way of working in small steps to finish a big project.

  • It divides work into sprints (usually 2–4 weeks long).

  • Teams work in self-organized, cross-functional groups.

  • Key Scrum roles:

  • Key Scrum ceremonies:


When someone says they have Agile/Scrum development experience, it usually means they have experience with:

  • Working in sprints and delivering features incrementally.

  • Participating in Scrum ceremonies (planning, standups, reviews, retros).

  • Using Agile tools like Jira, Azure DevOps, Trello, or Rally.

  • Collaborating closely with product owners, testers, and business stakeholders.

  • Adapting to changes in requirements quickly.

  • Following Agile principles like continuous feedback, quick iterations, and working software over documentation.


Scenario: Developing a New Feature in a Banking Web Application

Suppose you are working on a banking application where the customer wants a new feature: "Add Two-Factor Authentication (2FA) during login."

How Agile/Scrum works in this real case:

  1. Product Backlog Creation

    • The Product Owner adds a user story:
      “As a customer, I want to receive a one-time password (OTP) on my mobile during login, so that my account remains secure.”

    • The story is prioritized in the backlog.

  2. Sprint Planning

    • The team reviews the story, breaks it down into tasks, and estimates effort.

    • Example tasks:

      • Add UI for OTP entry.

      • Backend API to generate & validate OTP.

      • Integrate with SMS gateway.

      • Write unit tests & API tests.

    • The team commits to completing these in a 2-week sprint.

  3. Daily Standups (15 mins)

    • Each developer quickly shares:

      • What I did yesterday (e.g., implemented OTP screen).

      • What I will do today (e.g., integrate OTP API).

      • Any blockers (e.g., SMS gateway not configured).

    • Scrum Master helps remove blockers (e.g., contacts DevOps team for SMS gateway config).

  4. Development & Continuous Testing

    • Developers and testers work together.

    • Code is pushed frequently (CI/CD pipeline).

    • Testers verify OTP works with positive/negative cases.

  5. Sprint Review (Demo)

    • At the end of the sprint, the team demos the OTP login flow to stakeholders.

    • Product Owner checks if requirements are met and accepts the story.

  6. Sprint Retrospective

    • Team reflects:

      • What went well? (Quick integration with SMS API)

      • What didn’t go well? (Environment setup delays)

      • Action item: Prepare test environments earlier in future sprints.


How you can say this in an interview

"In my last project, we followed Agile Scrum. For example, when we added Two-Factor Authentication in a banking application, we worked in 2-week sprints. In sprint planning, we broke the feature into smaller tasks like OTP UI, backend API, and SMS integration. We had daily standups to track progress and resolve blockers. At the end of the sprint, we demoed the feature to stakeholders, got feedback, and made adjustments in the next sprint. This iterative approach helped us deliver a secure login feature quickly and adapt to changes requested by the client."

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