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Samsung Verification Engineer Interview

Interview Guide Nov 30

Detailed, specific guidance on the Samsung Verification Engineer interview process - with a breakdown of different stages and interview questions asked at each stage

The role of a Samsung Verification Engineer

As a Verification Engineer with Samsung, you'll be joining a global team that plays a key role in driving product roadmaps and delivering top-notch System IP solutions. You can expect exciting challenges and the chance to solve unique verification engineering problems within a supportive and collaborative environment, all contributing to Samsung's bold vision.

Samsung values diversity, bringing together a team with varied backgrounds and skill sets, fostering continuous learning and contributing to the team's culture. 

The compensation for a Samsung Verification Engineer is competitive, with a total pay range of $121K - $183K per year. This includes a base pay ranging from $102K - $148K per year and additional pay in the range of $19K - $35K per year.

Samsung Verification Engineer Interview Guide

The Samsung Verification Engineer interview process is quick and straightforward; it consists of two main rounds:

  • Technical Interview 1
  • Technical Interview 2
Relevant Guides

Samsung Verification Engineer - Technical Interview 1

Overview

In this round, you'll spend an hour with two experienced verification engineers. They'll kick off the interview by giving you insights into the role and details about the company. Beyond this, here's what you can expect

  • Questions about your background and professional experience 
  • As the interview progresses, you'll dive into the technical questions related to SV and UVM. For instance, they might ask you to demonstrate your ability to program assertions and constraints in System Verilog. 
  • Further, questions about your past projects and work experiences are common. For instance, you might be asked to discuss a particularly challenging verification task you encountered, how you tackled it, etc. Here, make sure you articulate your contributions and problem-solving approaches in previous roles.

Samsung Verification Engineer - Technical Interview 2

Overview

This round, lasting 1 hour and led by 2 managers, covers several subjects:

  • Memory Systems; these would typically revolve around memory and DRAM-related topics. You will be expected to demonstrate in-depth knowledge of memory systems.
  • System Verilog (SV) and Verification Methodology (UVM): Expect questions that delve into your experience with SV features relevant to verification, such as assertions, constraints, and interfaces. The interviewers may ask you to explain how you've used UVM in your projects and to discuss the advantages of adopting a UVM-based methodology. For instance, they might present a scenario where you need to instantiate a UVM agent and describe the interactions between its components. Be prepared to showcase your understanding of SV and UVM by drawing on practical examples from your past work.
  • Coding Exercise: As a part of this round, coding exercises will also be included. For example, you might be asked to code in System Verilog, specifically addressing clocking signals and other relevant components of integrated circuits. Or, you might be given a scenario where you need to write System Verilog code to model a specific memory access pattern. The interviewers would then inquire about your understanding of various memory architectures and ask you to solve problems related to optimising memory usage in a hypothetical design.
  • SV Data types and OOPs: A portion of this interview will focus on System Verilog (SV) data types and Object-Oriented Programming (OOP) concepts. For example, they might ask you to describe a situation where you used inheritance to create reusable verification components or how encapsulation improved the maintainability of your code. Or questions that assess your understanding of SV data types, including but not limited to bit, logic, int, real, and composite data types like struct and enum would come up.
  • Behaviour and General: This part of the interview assesses your overall behaviour, communication skills, and general fit for the team. Expect questions related to your approach to problem-solving, collaboration with team members, and your ability to adapt to different situations. Interviewers may present hypothetical scenarios to gauge how you handle challenging situations or work under pressure.

Interview Questions

  • Build a verification environment for an ordering block. What would the generation and coverage entail?
  • Write an environment verification for a FIFO.
  • Write verification for image processing to fix bad pixels.
  • Write Verilog code to generate a clock with a 25% duty cycle. Include questions on the case equality operator and basic gates using a mux.
  • Build a stack component using a simple memory component.
  • Write code for a driver class in UVM.
  • Design a testbench for a complex bus protocol, detailing how you would ensure thorough coverage.
  • Implement a scoreboard in SystemVerilog for a multi-channel communication system.
  • Describe your approach to handling asynchronous resets in your verification environments.
  • Write a SystemVerilog constraint to model a specific timing requirement in your verification environment.
  • Explain the benefits and drawbacks of using SystemVerilog interfaces in your verification architecture.

Samsung Verification Engineer Roles and Responsibilities

Following are the roles and responsibilities of a Samsung Verification Engineer:

  • Your primary responsibilities include defining and implementing a comprehensive performance verification strategy for complex System IP designs. This involves a deep dive into the intricate details of Coherent fabric, Memory controller, and LLC design specifications, with a focus on understanding and addressing performance impacts. implementation and its performance impact.
  • Your key responsibilities involve collaborating with architects, designers, and engineers to outline micro architectural features, and proposing solutions to enhance overall performance.
  • You'll engage with partners and customers, providing projections on key performance indicators for specific workloads. 
  • Creating a framework and benchmarks for performance verification, and modelling teams for design improvements are essential. 
  • Additionally, agility in handling multiple tasks and projects is crucial for success in this role.

Samsung Verification Engineer Skills and Qualifications

Here are the skills and qualifications that a Samsung Verification Engineer must have

  • A degree (BS/MS/PhD) or equivalent experience in a relevant field.
  • A minimum of 3 years of hands-on experience in System IP Performance Verification, demonstrating proficiency in workload analysis.
  • Strong skills in scripting languages like Perl or Python are essential. Also, proficiency in C++ with a working understanding of memory subsystems, including interconnect, last-level cache, coherency, and memory controller.
  • Effective communication skills and a collaborative, team-oriented mindset are crucial for success.
  • An experienced professional with a deep understanding of memory systems architecture, cycle-accurate simulators, and modelling methodologies.

Frequently Asked Questions