Q & A

Question 1

Key factors in greenfield web architecture?

Answer 1

Modular design, scalable microservices, REST/GraphQL APIs, cloud-native infrastructure, CI/CD, and security-focused architecture.

Question 2

Key factors in greenfield mobile architecture?

Answer 2

Platform-specific vs. cross-platform (React Native, Flutter), offline support, push notifications, API versioning, security protocols. Also CI/CD tools like Expo

Question 3

Approach to integrating legacy systems?

Answer 3

Use middleware for data transformation, ensure backward compatibility, API gateways, and phased rollout with thorough testing.

Question 4

Best practices for API integration?

Answer 4

Versioning, idempotent operations, OAuth2/JWT for security, rate limiting, caching strategies, and monitoring for performance.

Question 5

Steps for creating a hiring funnel?

Answer 5

Define roles, craft a skill matrix, set up an evaluation process (coding challenges, interviews), and implement a structured onboarding plan.

Question 6

How to onboard new developers effectively?

Answer 6

Assign mentors, provide clear documentation, set small initial goals, pair programming, and frequent check-ins for early feedback.

Question 7

Strategies for developer mentorship?

Answer 7

Weekly 1:1s, career path development, providing challenging yet achievable tasks, and regular feedback on progress and code quality.

Question 8

What’s crucial in talent development?

Answer 8

Encouraging continuous learning, promoting ownership of features, providing clear growth paths, and creating opportunities for leadership.

Question 9

How to pitch technical work to clients?

Answer 9

Focus on client pain points, propose phased MVP development, emphasize ROI, showcase relevant case studies, and offer flexible timelines.

Question 10

Key strategies in client presentations?

Answer 10

Tailor language to the audience (technical vs. non-technical), demonstrate quick wins, provide visual aids (mockups, wireframes), and offer clear action plans.

Question 11

Best way to foster team collaboration?

Answer 11

Regular cross-functional meetings, shared design/development tools (Figma, Zeplin), clear communication channels (Slack, Jira), and a culture of feedback.

Question 12

Methods to align design and development?

Answer 12

Early developer involvement in design phases, consistent handoff processes, design tokens for common language, and quick iterative feedback loops.

Question 13

Best practices for IoT architecture?

Answer 13

Focus on edge computing, efficient messaging (MQTT, CoAP), secure communication protocols, low latency, scalable device management, and robust firmware updates.

Question 14

Key components of web3 architecture?

Answer 14

Decentralized storage (IPFS), smart contracts (Ethereum/Solidity), consensus mechanisms (PoW/PoS), security (encryption), and network scalability.

Question 15

Managing a client project end-to-end?

Answer 15

Establish clear deliverables, frequent milestone reviews, use project management tools (Asana, Jira), handle scope carefully, and maintain open communication.

Question 16

How to handle scope creep in consultancy?

Answer 16

Set clear project boundaries, document changes in a project scope agreement, ensure client approval for additional work, and revise timelines accordingly.

Question 17

How to prioritize client work?

Answer 17

Understand client business goals, assess project impact and urgency, communicate delays or changes transparently, and balance competing priorities through agile planning.

Question 18

Ensuring quality in a consultancy environment?

Answer 18

Implement code reviews, follow industry best practices (TDD, BDD), maintain detailed documentation, and run regular retrospectives for process improvement.

Question 19

How to ensure seamless API integration across teams?

Answer 19

Clear API contracts, shared documentation, version control, standardized error handling, and regular syncs with involved teams for any breaking changes.

Question 20

What’s important for team retention and morale?

Answer 20

Clear career progression, regular recognition, flexible working conditions, transparent communication, and fostering a culture of learning and inclusivity.

Question 21

What is middleware for data transformation in microservices?

Answer 21

Middleware in microservices, often called message brokers (e.g., Kafka, RabbitMQ), handles the transformation, routing, and queuing of messages between services, ensuring data consistency and asynchronicity.

Question 22

What is an API gateway?

Answer 22

An API Gateway acts as a single entry point for external consumers of microservices. It handles request routing, authentication, rate limiting, caching, and load balancing. Examples include Kong, NGINX, and AWS API Gateway.

Question 23

Why use middleware in microservices?

Answer 23

Middleware decouples services, enabling better scalability, fault tolerance, and resilience. It ensures that microservices can communicate asynchronously, handle different data formats, and avoid direct service-to-service dependency.

Question 24

What is edge computing?

Answer 24

Edge computing processes data closer to the data source (e.g., IoT devices) instead of relying on a centralized cloud. This reduces latency, minimizes bandwidth use, and improves response times for real-time applications.

Question 25

What is MQTT in IoT?

Answer 25

MQTT (Message Queuing Telemetry Transport) is a lightweight publish/subscribe messaging protocol used in IoT for minimal bandwidth consumption, high scalability, and low-power consumption in constrained environments.

Question 26

What is CoAP in IoT?

Answer 26

(Constrained Application Protocol) is a specialized web transfer protocol designed for use with resource-constrained IoT devices, providing a simple way to interact with RESTful APIs in low-power networks.

Question 27

Why is low latency critical in IoT?

Answer 27

Low latency ensures real-time processing, which is essential for applications like smart cities, autonomous vehicles, or industrial automation. Delays can result in performance issues or safety risks.

Question 28

What does scalable device management involve?

Answer 28

Scalable device management involves handling millions of IoT devices with ease. It requires efficient onboarding, monitoring, software updates, and secure communication protocols to avoid bottlenecks and failure points.

Question 29

What makes a firmware update robust in IoT?

Answer 29

A robust firmware update system ensures secure, fail-safe updates with rollback capabilities, minimal downtime, and efficient distribution to avoid bricking devices or disrupting service.

Question 30

What is a project scope agreement?

Answer 30

A project scope agreement outlines the deliverables, timelines, responsibilities, and boundaries of a project. It serves as a mutual understanding between a client and service provider to prevent scope creep and ensure clarity.

Question 31

Key elements of a project scope agreement?

Answer 31

Include project objectives, deliverables, timeline, responsibilities of each party, acceptance criteria, budget, change management procedures, and terms for additional work.

Question 32

How to manage scope creep?

Answer 32

Clearly define the initial scope, create a formal process for scope changes, communicate the impact on budget and timeline, and get client approval before proceeding with any additional work.

Question 33

What is an API contract?

Answer 33

An API contract is a formal agreement that specifies how an API will behave, including endpoints, request/response formats, error codes, and security protocols. It acts as a “contract” between the API provider and consumers.

Question 34

What is the role of an API contract in seamless integration?

Answer 34

Clear API contracts ensure that all services and clients interact consistently with APIs, preventing breaking changes and enabling independent development by decoupling the consumer from the service provider.

Question 35

Why is versioning important in API contracts?

Answer 35

Versioning allows for changes and improvements to be made to an API without breaking existing clients. It supports backward compatibility, ensuring older integrations still work while new features are added.

Question 36

What tools ensure API contract enforcement?

Answer 36

Tools like Swagger/OpenAPI and Postman help document and validate API contracts, ensuring compliance and helping teams understand API behavior through automated testing and documentation.

Question 37

What is rate limiting in an API gateway?

Answer 37

Rate limiting controls the number of API requests a client can make in a given time period. It protects the API from abuse or overload, ensuring fair usage and preventing service degradation.

Question 38

How does an API gateway improve security?

Answer 38

API gateways manage centralized security for all services by enforcing authentication (OAuth, JWT), SSL/TLS encryption, request validation, and traffic filtering before it reaches internal services.

Question 39

What is request routing in an API gateway?

Answer 39

Request routing determines how incoming API requests are directed to specific backend services. It enables load balancing, traffic splitting (for A/B testing), and seamless scaling.

Question 40

Why use an API gateway for microservices?

Answer 40

An API gateway abstracts and simplifies the complexity of microservices by providing a unified interface for external clients, enabling centralized security, caching, monitoring, and fault tolerance.