Required Skills & Tech Stack
MongoDB
Postgresql
Node.js
Nextjs
Full Stack
Db
Nestjs
SQL
📚 Free Study Materials (4)
📖
Aptitude Practice Questions & Mock Tests
Open Resource ↗
Curated logical, quantitative, and verbal reasoning problems for the initial online screening round.
🎯
Company-Specific Interview Preparation Corner
Open Resource ↗
Detailed interview experiences, exam formats, and previous test questions for Yotta Infrastructure and tech roles.
📝
Technical Placement Cheat Sheets & Question Bank
Open Resource ↗
High-yield coding cheat sheets, core CS fundamentals (OOP, DBMS, OS, Networks), and rapid revision guides.
💻
Algorithm, DSA & Live Code Debugger Practice
Open Resource ↗
Hands-on problem sets to improve coding speed and step-by-step memory debugging.
Eligibility Criteria
Experience: 2-6 Yrs. Open to matching qualifications.
Selection & Interview Process
1
Online Assessment / Technical Interview Rounds / HR Review
Job Description & Key Responsibilities
Job Scope: We are looking for a software developer to join us as Full Stack Engineer and be part of the team developing the Product. This role is key to our organisations success as both a market force and a provider of cutting-edge end-user experiences. You will be directly working on building the software behind the platform that will power the Indian hyperscale cloud ecosystem. In this role, youll be working alongside a young team who will collaborate with you and foster a culture of mutual learning. Total /Relevant Experience: 3-6 years of experience Key Responsibilities: Your responsibilities in this role will be centered around the following: Developing the application both frontend and backend using a typescript-based stack of frameworks, databases, message queues, middleware and API gateways. Optimizing the application backend for security, efficiency, performance and a delightful user experience. Engineering the application in a way that’s secure and tamper-proof. Collaborating with the UX, Product and Engineering teams to deliver a robust Product experience. Helping frontend engineers and support operations with troubleshooting. Building an API-first software development practice and Product. Following strict documentation practices around all work done and delivered. Staying up to date on emerging technologies. Must-have skill: Needless to say, this role is a combination of proven experience and the ability to think spontaneously. We’ll be evaluating your candidature on the following criteria: 5+ years of experience of working as a software full stack developer/engineer. Strong knowledge of web frontend development technologies including typescript-based frameworks (React), NestJS, MySQL, Microservices, MongoDB, Kafka etc. Solid foundation of technically implementing solutions, backend architectures and following SDLC practices. Understanding cloud-native architectures and development using Kubernetes and Docker. Prior experience and/or aptitude towards open-source technologies and on-premises software deployments. Strong technical knowledge and a core skill set consisting of Typescript-based software development frameworks, tools, libraries and methodologies. DevOps-centric mindset with agility and collaboration at core. Up to date knowledge on industry trends and best practices. Exceptional communication skills with clear verbal and written articulation. Number of Interview Rounds 2 rounds
Preparation Hub
Yotta Infrastructure — Data Analytics & SQL Interview Guide
Previously asked questions, exam syllabus, coding benchmarks & round strategy.
📖 Previously Asked Questions & Preparation Links
APTITUDE & LOGIC
📖
Aptitude Practice Questions & Online Mock Tests
Curated logical, quantitative, and verbal reasoning problems to sharpen reasoning skills required for the initial screening test.
Open Resource ↗
COMPANY GUIDE
🎯
Yotta Infrastructure Interview Preparation Corner
Comprehensive guide covering typical interview formats, common questions, and preparation tips for Yotta Infrastructure and off-campus tech roles.
Open Resource ↗
MOCK TESTS & PAPERS
📝
Comprehensive Interview Prep Resources & Syllabus
Collection of previous year questions, company-specific test patterns, and interview experiences for technical and HR rounds.
Open Resource ↗
CODING PRACTICE
💻
Algorithm and Data Structure Problem Set
Practice problems to improve coding proficiency and algorithm problem-solving speed for technical rounds.
Open Resource ↗
💻 Previously Asked Coding Challenges
Easy / Medium
⚡ Live Debugger
Two Sum & Two Pointers Array Optimization
Asked in 85% tech rounds
Medium
⚡ Live Debugger
Reverse Linked List & Detect Cycle (Floyd's Algorithm)
Frequently asked in core rounds
Medium
⚡ Live Debugger
SQL Nth Highest Salary with DENSE_RANK() & Subqueries
Top standard database question
Easy / Medium
⚡ Live Debugger
Valid Parentheses & Stack Implementation
Standard online assessment problem
🗺️ Round-Wise Strategy
Round 1: Online Assessment (OA)
Aptitude, Quantitative Logic & 2 Coding Problems
Focus on accuracy and speed. Practice arrays, strings, and standard arithmetic puzzles.
Round 2: Technical Interview 1
Core Tech Stack (MongoDB, Postgresql, Node.js, Nextjs, Full Stack, Db, Nestjs, SQL) & Live Code Tracing
Explain your thought process aloud. Analyze time & space complexities before coding.
Round 3: System Design & Problem Solving
Database Schemas, APIs & Architecture Basics
Clarify edge cases, diagram schemas cleanly, and discuss scalability trade-offs.
Round 4: HR & Cultural Fit Discussion
Yotta Infrastructure Core Values, Learning Agility & Offer Terms
Demonstrate passion, strong communication, and readiness for full-time collaboration.
❓ Core Technical Questions & Answers
What is the difference between WHERE and HAVING clauses in SQL? Answer ▼
Model Answer: WHERE filters rows before any groupings are applied, while HAVING filters aggregated groups after GROUP BY has executed.
Explain SQL Window functions: ROW_NUMBER(), RANK(), and DENSE_RANK(). Answer ▼
Model Answer: ROW_NUMBER() assigns unique sequential integers. RANK() assigns identical ranks to ties and skips ranks. DENSE_RANK() assigns identical ranks to ties without skipping rank numbers.
How do you handle NULL and missing values during data cleaning in Python/Pandas? Answer ▼
Model Answer: Use .isna().sum() to identify missing values. Impute with mean/median using .fillna() or remove with .dropna(subset=[...]) depending on variance impact.
What is the difference between Star Schema and Snowflake Schema in Data Warehousing? Answer ▼
Model Answer: Star Schema has denormalized dimension tables directly connected to the central Fact table. Snowflake Schema normalizes dimension tables into sub-dimensions to minimize redundancy.
How do you calculate MoM (Month-over-Month) growth in SQL? Answer ▼
Model Answer: Use LAG(revenue, 1) OVER (ORDER BY month) to fetch the previous month's revenue and compute (revenue - prev_revenue) / prev_revenue * 100.
🤝 Behavioral & HR Questions (STAR Method)
Why do you want to join Yotta Infrastructure as a Fullstack Engineer?
Preparation Tip: Highlight Yotta Infrastructure's market reputation, recent tech innovations, and how your skills in MongoDB directly solve their team's objectives.
Describe a challenging bug or academic project roadblock and how you resolved it.
Preparation Tip: Use the STAR method: Situation (project context), Task (what needed solving), Action (specific tools/logic applied), Result (quantifiable positive outcome).
How do you handle strict deadlines or sudden scope changes?
Preparation Tip: Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.
