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

My expertise lies in the field of mechanical engineering with a focus on structural analysis and design.

• Specialize in structural analysis and design

• Proficient in CAD software such as AutoCAD and SolidWorks

• Experience with finite element analysis (FEA)

• Knowledge of material properties and stress analysis

• Worked on projects involving designing and testing mechanical components

The main problem in the part at my working company is frequent breakdowns due to poor quality materials.

• Frequent breakdowns due to poor quality materials

• Lack of proper maintenance procedures

• Inadequate training of maintenance staff

• Supplier issues with delivering substandard parts

Quality is the measure of excellence or superiority of something.

• Quality is meeting or exceeding customer expectations.

• It involves consistency, reliability, and durability.

• Quality can be subjective and may vary depending on the context.

• Examples include high-quality products, services, processes, and experiences.

As a Sr. Engineer, my responsibility is to lead and manage engineering projects, provide technical expertise, and ensure the successful completion of tasks.

• Leading and managing engineering projects from conception to completion

• Providing technical expertise and guidance to team members

• Ensuring the successful execution of tasks within deadlines and budget constraints

• Collaborating with cross-functional teams to achieve pr...read more

To solve the problem, first identify the root cause, brainstorm potential solutions, evaluate each solution, implement the best one, and monitor the results.

• Identify the root cause of the problem by analyzing data and gathering information.

• Brainstorm potential solutions with a team or individually.

• Evaluate each solution based on feasibility, cost, and impact.

• Implement the best solution and monitor the results to ensure...read more

Seeking new challenges and opportunities for growth in a different environment.

• Looking for new challenges and opportunities for professional growth

• Interested in working with new technologies or industries

• Seeking a better work-life balance or company culture

• Wanting to relocate to a different city or country for personal reasons

I am impressed by the company's commitment to innovation, strong team culture, and focus on employee development.

• Innovative projects and technologies being developed

• Positive team culture and collaboration

• Opportunities for professional growth and development

• Company's reputation and success in the industry

I am currently earning a competitive salary based on my experience and qualifications.

• My current salary is in line with industry standards

• I am open to discussing compensation based on the responsibilities of the Sr. Engineer role

• I believe my salary should reflect my skills and contributions to the company

The aspect refers to a particular part or feature of something.

• Aspect is a specific element or characteristic of a subject or situation.

• It can also refer to a particular way in which something can be viewed or interpreted.

• For example, in engineering, the aspect of a design could refer to its functionality, aesthetics, or cost-effectiveness.

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