Developer English guide
English for Google and FAANG Interviews: The Complete Guide for LATAM Developers
September 17, 2026
How to prepare your English for Google, Meta, Amazon and other FAANG interviews. Coding interview, system design and behavioral vocabulary in English.
Key Takeaways
- FAANG interviews in English have three distinct types: coding, system design, and behavioral.
- In the coding interview, thinking out loud in English is as important as the solution itself.
- System design interviews require a specific vocabulary: throughput, latency, sharding, and consistency.
- The STAR method (Situation, Task, Action, Result) is the expected structure for behavioral questions.
- 4-6 weeks of focused practice on interview English is enough for most B1 developers.
What makes an English interview at FAANG different
Una entrevista técnica en FAANG no es solo una prueba de algoritmos. Es una prueba de comunicación en inglés bajo presión. Lo que diferencia a los candidatos exitosos no es solo que resuelven el problema, sino que lo hacen mientras explican su razonamiento en voz alta, en inglés, en tiempo real.
Cuatro características hacen que estas entrevistas sean distintas al inglés del trabajo diario:
Pace (velocidad)
45 minutos por ronda. No hay tiempo para traducir mentalmente. Necesitas responder directamente en inglés sin pausa visible.
Precision (precisión)
Los términos técnicos importan. “More efficient” no es lo mismo que “O(n) time complexity”. Usa vocabulario técnico exacto.
Thinking out loud
El silencio es tu enemigo. Los entrevistadores evalúan tu proceso de pensamiento, no solo el resultado final. Habla mientras piensas.
Structured answers
Las respuestas dispersas pierden puntos. Para behavioral questions, la estructura STAR es la esperada. Para system design, sigue un orden: requisitos, API, base de datos, escalabilidad.
The coding interview in English: how to narrate your solution
El coding interview en inglés tiene un guion predecible. No necesitas improvisar: las mismas frases aparecen en casi todas las entrevistas. Apréndelas hasta que salgan automáticamente.
Frases esenciales del coding interview:
“Let me start by clarifying the constraints...”
Empieza siempre aquí. Muestra que piensas antes de codificar.
“My initial approach would be a brute-force O(n²) solution, but we can optimize to O(n log n) by...”
Demuestra que conoces la solución naive y puedes mejorarla.
“The edge cases I need to handle are: empty input, negative numbers, and overflow.”
Lista los edge cases explícitamente. Los entrevistadores lo valoran.
“I'll use a hash map here to trade space for time.”
Explica el trade-off de la estructura de datos elegida.
“This gives us O(n) time and O(1) space.”
Cierra con el análisis de complejidad.
Un tip clave: si no sabes la respuesta, di “Let me think through this for a moment.” No te quedes en silencio. Pensar en voz alta, aunque sea exploratorio, es mejor que el silencio.
The system design interview in English
El system design interview requiere un vocabulario técnico más amplio. Domina estos términos antes de tu entrevista:
| Term | Español | Example sentence |
|---|---|---|
| Throughput | Rendimiento | The system handles 10,000 requests per second throughput. |
| Latency | Latencia | We need P99 latency under 100ms for the API. |
| Consistency | Consistencia | Strong consistency guarantees all nodes see the same data. |
| Availability | Disponibilidad | 99.99% availability means less than an hour of downtime per year. |
| Partition tolerance | Tolerancia a particiones | CAP theorem: pick two from consistency, availability, partition tolerance. |
| Sharding | Fragmentación | We can shard the database by user region to distribute load. |
| Replication | Replicación | Replication ensures data is copied across multiple nodes. |
| Cache invalidation | Invalidación de caché | Cache invalidation is one of the hardest problems in computer science. |
| CDN | Red de distribución de contenido | A CDN reduces latency by serving assets from edge nodes near the user. |
| Back-of-the-envelope estimation | Estimación rápida | Let me do a quick back-of-the-envelope estimation of the storage requirements. |
Frases clave para system design:
"Let's define the requirements first, both functional and non-functional."
"At this scale, a single relational database won't work because..."
"I'd use eventual consistency here because strong consistency isn't required for this use case."
"The trade-off here is between latency and consistency."
"Let me do a quick back-of-the-envelope estimation."
Para profundizar en el vocabulario de system design, lee System Design Vocabulary.
The behavioral interview in English: the STAR method
El método STAR es la estructura que FAANG espera para las preguntas de comportamiento. Cada respuesta debe tener cuatro partes:
Contexto: ¿Dónde trabajabas? ¿Cuál era el proyecto?
Tu responsabilidad específica en esa situación.
Qué hiciste tú (no el equipo). Usa 'I', no 'we'.
El resultado medible. Siempre termina con datos si puedes.
Example STAR answer: “Tell me about a time you disagreed with your manager.”
S: “In my previous role, we were planning to migrate our API to GraphQL within one sprint.”
T: “I was the lead developer on the migration and had concerns about the timeline.”
A: “I prepared a technical breakdown showing that we needed at least three sprints to avoid introducing regressions. I presented this to my manager with data from a spike we had run.”
R: “We extended the timeline. The migration launched with zero critical bugs. My manager later said it was the right call.”
Para practicar preguntas de comportamiento con respuestas en inglés, lee The 10 Most Frequently Asked Behavioral Interview Questions.
The 10 most common FAANG questions and how to answer them in English
Estas son las preguntas más frecuentes en entrevistas FAANG. Para cada una, el tip indica qué evalúa el entrevistador.
1. “Tell me about yourself.”
Keep it under 2 minutes. Current role, relevant experience, why FAANG interests you.
2. “Why do you want to work at [company]?”
Be specific. Research their products, tech stack, or engineering blog.
3. “Tell me about a time you disagreed with your manager.”
Use STAR. Show you can disagree respectfully and commit to the decision.
4. “Describe a project you led end to end.”
Focus on your decisions, trade-offs made, and measurable results.
5. “Tell me about a technical failure and what you learned.”
Be honest. Interviewers value self-awareness and the ability to learn.
6. “What is your greatest technical challenge?”
Pick a real challenge that shows depth. Explain the technical constraints clearly.
7. “How do you handle ambiguous requirements?”
Show that you ask clarifying questions and align with stakeholders early.
8. “Design a URL shortener.”
Start with requirements, then API, database schema, and scalability trade-offs.
9. “Find two numbers in an array that sum to a target.”
Brute force is O(n²). Hash map approach is O(n). Explain the trade-off.
10. “Where do you see yourself in five years?”
Show ambition aligned with the role. Leadership and technical depth are both valid.
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Written by
Roxana LafuenteLingua-e's founder
Roxana Lafuente is a software engineer with 8+ years of experience. At the beginning of her career, even though she had already passed the First Certificate in English, she still froze every time she had to speak up in the daily standup. That was a gap nobody was fixing. After 2,000+ standups, she figured out what actually builds fluency: practice that looks like your real work. She built Lingua-e so other developers wouldn't have to take the long road to feel confident working in an international development environment.