FEV Embedded Software Developer Interview Questions, Process, and Tips

The volatile keyword in programming is used to indicate that a variable's value can be changed unexpectedly.

• Used to prevent compiler optimizations that assume variable values do not change outside of the program

• Commonly used for variables that are modified by hardware or other threads

• Example: volatile int sensorValue; // variable updated by external sensor

Unions in C are used to store different data types in the same memory location.

• Unions are used to save memory by allowing different data types to share the same memory location.

• They are commonly used in situations where only one of the data types needs to be accessed at a time.

• For example, a union can be used to store an integer and a float, with only one being accessed depending on the context.

A 120-ohm resistor is used in the CAN protocol to match the characteristic impedance of the network and reduce signal reflections.

• The 120-ohm resistor helps to match the characteristic impedance of the CAN network, which is typically 120 ohms.

• It reduces signal reflections that can cause data corruption and communication errors.

• The resistor is placed at both ends of the CAN bus to ensure proper termination.

• Without the r...read more

PWM is a technique used to encode analog signal using digital pulses of varying widths.

• PWM is commonly used in controlling the speed of motors, brightness of LEDs, and audio signals.

• It works by varying the width of the pulse in a fixed time period, known as the duty cycle.

• The average voltage of the signal is determined by the duty cycle - higher duty cycle means higher average voltage.

• PWM is achieved by rapidly switchi...read more

My strengths include problem-solving, attention to detail, and strong programming skills. My hobbies include hiking, playing guitar, and reading.

• Strong problem-solving skills

• Attention to detail

• Proficient in programming languages like C, C++, and Python

• Hiking

• Playing guitar

• Reading

I expect a competitive salary based on my experience, skills, and the responsibilities of the Senior Engineer role.

• Consider the industry standards and salary ranges for Senior Engineers in your location.

• Research the company's salary structure and compensation packages for similar roles.

• Highlight your qualifications, achievements, and unique skills that justify a higher salary.

• Be open to negotiation and discuss addition...read more

My family background is diverse and has influenced my values and work ethic.

• My parents come from different cultural backgrounds, which has exposed me to different perspectives and traditions.

• My father is an engineer and my mother is a teacher, which has instilled in me a passion for learning and problem-solving.

• I have two siblings, both of whom are also engineers, fostering a competitive and collaborative environment.

• G...read more

I worked as a Senior Engineer at XYZ Company.

• Led a team of engineers in developing and implementing new software solutions.

• Collaborated with cross-functional teams to gather requirements and design technical solutions.

• Managed the full software development lifecycle, from planning and design to testing and deployment.

• Implemented best practices for code quality, performance, and security.

• Mentored junior engineers and con...read more

Seeking new challenges and growth opportunities in a different organization.

• Looking for a more challenging role to enhance my skills and knowledge.

• Seeking a company with a better work-life balance.

• Interested in exploring new technologies and industries.

• Want to work in a more collaborative and innovative environment.

• Seeking better career growth and advancement opportunities.

In 5 years, I see myself as a Senior Engineer leading a team of talented individuals, working on innovative projects and contributing to the growth of the company.

• Leading a team of engineers

• Working on innovative projects

• Contributing to the growth of the company

My strengths include problem-solving, leadership, and adaptability. My weaknesses include impatience and perfectionism.

• Strength: Problem-solving - I have a strong ability to analyze complex problems and find effective solutions.

• Strength: Leadership - I have experience leading teams and guiding them towards successful outcomes.

• Strength: Adaptability - I am able to quickly adapt to new technologies and environments.

• Weakn...read more

I am an experienced Senior Engineer with a strong background in software development and project management.

• Over 10 years of experience in software development

• Proficient in multiple programming languages such as Java, C++, and Python

• Extensive knowledge of software development methodologies and best practices

• Proven track record of successfully leading and delivering complex projects

• Strong problem-solving and analytical ...read more