Você está se preparando para uma entrevista de design de software. Como você pode demonstrar melhor sua experiência técnica?

How to demonstrate your technical expertise? Just speak the truth. Look for what they're searching for, try to explain solutions from your past, in simple language first. If you know that the seeker is good, then use precise terms to explain it in lesser time. For this, knowledge on design patterns will help.

I’ve often come across legacy applications that are brilliantly developed, with well-engineered structures and outstanding logic. However, there are also projects that seem poorly implemented—not because the developer lacks skill, but often due to tight deadlines, urgent delivery, or constant pressure. While tight deadlines are part of the process, it's essential to understand the value of software design principles. These principles help make code maintainable, manageable, and efficient, and also ensure that the software can handle load effectively. For example, following the SOLID principles, using N-tier or MVC architecture, If I need to improve my understanding, I usually do some quick research, as I enjoy learning through exploration

Understand from the start what the interviewer is looking for. This could be a broad range of things but use your mind powers and figure out what aspect of the software development lifecycle is most important to them and speak to that with great expertise.

Design patterns are best practices to solve some common problems in software design, and is as much an art as a science. Always ask yourself the reasons and benefits of using a design pattern (and not to over-do it), and it is a judgement call sometimes. Please be assured that as long as you have good reasons to back a certain decision, then you will be fine in a design interview.

I would explain my problem-solving skills by outlining my structured approach to breaking down complex issues, using proven methodologies like design patterns and architectural principles to develop scalable, maintainable solutions. I’d share specific examples where I analyzed requirements, collaborated with cross-functional teams, and implemented innovative solutions under constraints. By highlighting the impact of these solutions on system performance and project success, I would emphasize my ability to deliver high-quality results while continuously refining my approach based on feedback and evolving challenges.

To showcase your problem-solving abilities, focus on how you approach complex issues methodically. Break the problem into smaller, manageable parts, clearly explain your reasoning, and evaluate multiple solutions. Highlight how you consider the impact of each option, showing your ability to balance technical requirements with practical outcomes. This demonstrates not only your problem-solving process but also your adaptability in navigating complex systems.

When considering various solutions and their potential implications, very often it is not only a technical or design decision, but practically one also needs to take the timeline, funding, available skill set, risks, maintainability and other constraints into considerations. It requires someone to develop the ability to weigh pros and cons in a multi-dimension manner.

Best way is to show your interviewers your figma file via sharescreen. The pages in particular are your Low Fidelity Pages that has the screenshots of your notes and sketches and the Dev Handover Page that has the flow already laid out. While showing your sketches and notes, tell the story behind it, what happened in between, and how you overcame it. Explaining methodologies is the best way to show you DON'T KNOW what you're doing. However, telling an interviewer how you designed the flow for an idea wanted from your client(but had a hard time articulating it properly) demonstrates: - know what you're doing - can simplify the process for your target user - can satisfy the needs of your stakeholder - solve the problem from start to end.

To best demonstrate your technical expertise in a software design interview, focus on showcasing your problem-solving approach, your ability to break down complex problems, and your proficiency in communicating ideas clearly. I remember one interview where I was asked to design a scalable system for an e-commerce platform. Instead of diving straight into the code, I first clarified the requirements, asking about traffic expectations, data consistency, and potential bottlenecks. This helped me build a flexible architecture using microservices. I walked the interviewer through my thought process, explaining how each decision aligned with the system's needs.

In an interview, focus on how algorithms and data structures enhance performance. Be ready to explain why certain structures, like hash tables or trees, are better for specific tasks, and how you use them to optimize for efficiency and scalability. This shows your ability to design systems that are both performant and practical

In this generation of predominantly using high level programming languages, it is rare for someone to code the low level algorithms. That said, in order to be an excellent software developer, one needs to understand the implications of using a certain API, method or object, rather than simply using them functionally.

I think in any interview it’s is essential to demonstrate not only base understanding but also when and where you have applied it. Few projects implement low level algorithms these days but knowing them at a base level helps understand their use. Knowing where they have been used on projects you have worked on and the impact they had elevates you to the next level.

An algorithm is a procedure used to solve a problem. To showcase your understanding don't forget to explain the problem and then why this algorithm is better than X solution.

Practice coding exercises to ensure you can write clean, efficient code under pressure. Focus on proper syntax, exception handling, and unit tests to show attention to detail and code quality. This preparation highlights your ability to produce reliable and maintainable code, even on the spot.

First things go first. Don't try to add every good practice at once. Given a problem first write your rough solution and then improve it. Also explaining what would you do if given more time can be valuable

Not only you want to discuss the success of past projects, but don't be afraid to discuss the failure also, as long as we take good lessons from the failure and come out as a better person/designer/developer. Let's be honest, we learn the most from our own failures rather than the successes.

When discussing past projects, focus on highlighting specific design decisions, the challenges you faced, and how you addressed them. Dive into the technical aspects of your work, such as the architecture, technologies used, and any optimizations you implemented. Sharing lessons learned from these experiences not only demonstrates your expertise but also your ability to grow and adapt in real-world scenarios. This reflection shows maturity in your approach to software design.

Past projects are great way to display your skills. Be more specific and explain how your project uses the technologies and skills that the role your interviewing for requires.

I have a portfolio of applications demonstrating real abilities from design to realization. It's clear during COVID-19 that no company could deliver an application framework that could support the vaccination registration under load. My current invention is making a C++ microservice framework that processes real-time information incredibly faster than JAVA with no freezing from garbage collection. By minimizing development and operational expenses I am proposing a paradigm shift that optimizes cloud native service density using Microsoft's Windows feature rich operating system that contains the TLS 1.3 security needed for today's political climate, paired with and their Visual Studio development IDE for the best development experience

Don't take me bad, sometimes is okay to brag. But discussing past project is not only about achievements, the most important part of it are learnings.

Every company is different. So what they ask are different. Step 1 is know your company and what they are looking for. Some companies focus on more details on a programming language or framework some others look at problem solving skill. Know your interviewer, if you are interviewing with an engineer vs with a Director will be different. An engineer may dig more into code where as director will probable look into your past projects and how you approach to a problem. Look into the JD, not all positions are same. If someone needs java or sql skill, practice it.

It's about effectively communicating complex ideas, staying calm under pressure, and showcasing a collaborative attitude. Practice explaining tough concepts in clear, simple terms, and stay adaptable when faced with unexpected questions. Demonstrating your preparedness and approachability can be as crucial as your technical abilities in making a positive impression.