The Principal Software Engineer (P5) interview at UKG is a rigorous process designed to assess deep technical expertise, architectural vision, leadership potential, and the ability to drive complex projects to successful completion. Candidates are expected to demonstrate a strong understanding of software engineering principles, system design, scalability, performance, and best practices. This role requires not only exceptional coding skills but also the ability to mentor junior engineers, influence technical direction, and collaborate effectively across teams.
Rounds·4
Timeline·~14d
Experience·8 - 15 yrs
Comp band·US$170000 - US$220000
Interview time·195 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 05 phases
01 / 05Phase 01 of 05
Weeks 1-2: DSA fundamentals and practice (medium-hard LeetCode).
Weeks 1-2: Focus on core data structures (arrays, linked lists, trees, graphs, hash tables) and algorithms (sorting, searching, dynamic programming, graph traversal). Practice problems on platforms like LeetCode, HackerRank, focusing on medium to hard difficulty. Understand time and space complexity analysis.
Phase 02 of 05
Weeks 3-5: System Design principles and practice (distributed systems, databases, APIs).
Weeks 3-5: Immerse yourself in system design. Study concepts like load balancing, caching, database design (SQL vs. NoSQL), message queues, microservices architecture, API design, and CAP theorem. Read resources like 'Designing Data-Intensive Applications' and practice designing common systems (e.g., Twitter feed, URL shortener).
Phase 03 of 05
Week 6: Behavioral questions preparation (STAR method).
Week 6: Focus on behavioral questions. Prepare STAR method (Situation, Task, Action, Result) answers for common leadership, teamwork, conflict resolution, and problem-solving scenarios. Reflect on your career experiences and identify key achievements and learning moments.
Phase 04 of 05
Week 7: Cloud, Containers, and CI/CD.
Week 7: Review cloud computing concepts (AWS, Azure, GCP), containerization (Docker, Kubernetes), and CI/CD pipelines. Understand how these technologies are used in modern software development and how they contribute to scalability and reliability.
Phase 05 of 05
Week 8: Final review, mock interviews, company research.
Week 8: Final review. Revisit challenging DSA and system design problems. Prepare specific questions for the interviewers. Ensure you have a strong understanding of UKG's business and technical landscape. Practice mock interviews if possible.
Questions
Locations
Fig · Regions — 02 locations
01 / 02Location
Interview focus
Common questions
Tips
Location
Interview focus
Common questions
Tips
Rounds
Expand a step for evaluation criteria, sample questions, and prep notes.
Technical Coding Interview · 45 min · Senior Software Engineer / Staff Engineer
This round focuses on assessing your core technical skills. You will be presented with one or two coding problems, typically involving data structures and algorithms. The interviewer will evaluate your ability to understand the problem, devise an efficient solution, write clean and correct code, and analyze its performance. Expect follow-up questions about edge cases, alternative approaches, and optimizations.
What they look for
Evaluation
Sample questions
Given a binary tree, find the lowest common ancestor of two given nodes in the tree.
Implement a function to find the k-th largest element in an unsorted array.
Design a data structure that supports insert, delete, search, and getRandom in O(1) average time.
Prep for this round
Common rejection reasons
System Design Interview · 60 min · Staff Engineer / Principal Engineer
This is a critical round where you'll be asked to design a complex system from scratch or improve an existing one. You'll need to consider requirements, constraints, scalability, performance, availability, and maintainability. Expect to draw diagrams, discuss trade-offs between different technologies and approaches, and justify your design choices.
What they look for
Evaluation
Sample questions
Design a URL shortening service like bit.ly.
Design a system to handle real-time analytics for a streaming service.
Design a distributed cache system.
Prep for this round
Common rejection reasons
Behavioral And Leadership Interview · 45 min · Engineering Manager / Director
This round assesses your behavioral and leadership competencies. You'll be asked questions about your past experiences, focusing on how you've handled challenging situations, led teams, collaborated with others, and demonstrated leadership. Use the STAR method (Situation, Task, Action, Result) to structure your answers.
What they look for
Evaluation
Sample questions
Tell me about a time you had to lead a project that faced significant challenges. How did you motivate your team and ensure success?
Describe a situation where you had a conflict with a colleague or manager. How did you resolve it?
How do you mentor junior engineers? Provide an example.
Tell me about a time you failed. What did you learn from it?
Prep for this round
Common rejection reasons
Executive / Leadership Interview · 45 min · Senior Engineering Leader / Director / VP
This final round, often with a senior leader, focuses on your strategic thinking, technical vision, and overall fit within the company's leadership. You'll discuss your approach to technical strategy, how you align technology with business goals, and your potential to influence the engineering organization. This is also an opportunity for you to ask high-level questions about the company's direction.
What they look for
Evaluation
Sample questions
What is your vision for the future of software engineering at UKG?
How do you balance innovation with maintaining existing systems?
How would you foster a culture of continuous learning and improvement within an engineering team?
Prep for this round
Common rejection reasons
DSA
Frequently reported on UKG loops
Other guides
