SDE-2 Frontend Interview Experience at Tekion
Frontend Developer
January 8, 2026
medium
Overview
This case study details the interview experience for a Software Engineer 2 (Frontend) role at Tekion Corp. The process aims to evaluate candidates' proficiency in frontend development, problem-solving abilities, and understanding of software engineering principles within a product-based company context. The overall difficulty is rated as 7.5/10.
Interview Rounds
The interview process consisted of the following rounds:
- JavaScript Fundamentals: This round focused on core JavaScript concepts, including internals, polyfills, and functional programming.
- Machine Coding (React Native): A practical coding exercise involving React Native. The candidate was tasked with building a news application with specific functionalities.
- Hiring Manager Discussion: A discussion focusing on expectations, negotiation, and relevant questions about the company.
- HR Discussion: Standard HR procedures and discussion.
Round 1: JavaScript Fundamentals
- Difficulty Level: Medium-Hard (7.5/10)
- Description: This round assessed the candidate's understanding of JavaScript internals, polyfills, and functional programming concepts. A strong grasp of these areas was crucial.
Round 2: Machine Coding (React Native)
- Difficulty Level: Hard (8/10)
- Description: The candidate was required to build a News Application with the following specifications:
- Display news in a table format with pagination.
- Allow users to edit rows, with changes persisting across app sessions and navigation.
- Handle inconsistent data from the provided API, requiring validation and formatting.
- Post-implementation questions included:
- Strategies for backend contract building.
- Approaches to efficient state management.
- Considerations for using third-party libraries for persistence (AsyncStorage/SQLite).
Round 3: Hiring Manager Discussion
- Difficulty Level: Easy (5/10)
- Description: This round focused on aligning expectations, discussing compensation, and allowing the candidate to ask questions about Tekion and the role.
Key Takeaways
For individuals preparing for SDE-2 frontend roles, the following areas are crucial:
- Mastery of JavaScript fundamentals, including closures, the event loop, and polyfills.
- Hands-on experience with React and React Native.
- Understanding of backend API design and contract handling.
- Knowledge of UI performance optimization techniques (e.g., FlatList, List Virtualization).
This case study aims to provide valuable insights for candidates preparing for frontend roles at Tekion or similar product-based companies.
Original Source
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