L #2931

Applications open Full-Time Job

Software Engineer

Perennation Computer Solutions Global Private Limited

India (Remote / Multiple), India
Competitive Package
Fresher (0-1 Yrs)
Posted Today

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About the role

Company Description

Perennation Computer Solutions Global Private Limited (PCS Global Pvt. Ltd.) is a prominent Information Technology services provider dedicated to driving digital transformation across various industries. With a workforce of over 1,500 professionals in India, PCS Global offers cutting-edge solutions in web and mobile application development, IoT, data science, and staff augmentation.

By leveraging innovation and expertise, the company helps clients enhance operational efficiency, improve user experiences, and adapt to a rapidly evolving technological landscape. Committed to nurturing talent, PCS Global also runs an employment and internship program, equipping fresh graduates with hands-on experience and industry-relevant skills.

Role Description

This is a full-time hybrid role for a Software Engineer at our Rajarhat location, with flexibility for some work-from-home arrangements. The Software Engineer will be responsible for designing, developing, and maintaining software solutions, including back-end development and application programming. Key responsibilities include writing clean, well-documented code, collaborating with cross-functional teams, troubleshooting technical issues, and implementing innovative technical solutions to meet project requirements.

Qualifications

Strong foundation in Computer Science and Software Development principles
Proficiency in Back-End Web Development and Object-Oriented Programming (OOP)
Hands-on expertise in Programming using languages such as Java, Python, C++, or other relevant technologies
Ability to work collaboratively in a hybrid team environment
Good problem-solving skills and analytical thinking
Experience with frameworks, databases, or cloud technologies is a plus
Bachelor’s or higher degree in Computer Science, Software Engineering, or a related field

Location : Anywhere

Eligibility & process

Who can apply

Seniority: Entry level. Employment type: Full-time

Skills & stack

Python Java OOP Data Structures & Algorithms Python/Java System Design SQL REST APIs

Selection process

Details are shared by the recruiter after shortlisting.

Prep kit

20 resources

Study material 4

📖 Aptitude Practice Questions & Mock Tests Curated logical, quantitative, and verbal reasoning problems for the initial online screening round. 🎯 Company-Specific Interview Preparation Corner Detailed interview experiences, exam formats, and previous test questions for Perennation Computer Solutions Global Private Limited and tech roles. 📝 Technical Placement Question Bank High-yield coding cheat sheets, core CS fundamentals (OOP, DBMS, OS, Networks), and rapid revision guides. 💻 Algorithm, DSA & Live Code Debugger Practice Hands-on problem sets to improve coding speed and step-by-step memory debugging.

Company-specific guides 4

📖 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. 🎯 COMPANY GUIDE Perennation Computer Solutions Global Private Limited Interview Preparation Corner Comprehensive guide covering typical interview formats, common questions, and preparation tips for Perennation Computer Solutions Global Private Limited and off-campus tech roles. 📝 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. 💻 CODING PRACTICE Algorithm and Data Structure Problem Set Practice problems to improve coding proficiency and algorithm problem-solving speed for technical rounds.

Likely coding questions 4

💻 Two Sum & Two Pointers Array Optimization Easy / Medium Asked in 85% tech rounds ⚡ Live debugger 💻 Reverse Linked List & Detect Cycle (Floyd's Algorithm) Medium Frequently asked in core rounds ⚡ Live debugger 💻 SQL Nth Highest Salary with DENSE_RANK() & Subqueries Medium Top standard database question ⚡ Live debugger 💻 Valid Parentheses & Stack Implementation Easy / Medium Standard online assessment problem ⚡ Live debugger

Round-wise strategy 4

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 (Python, Java, OOP, Data Structures & Algorithms, Python/Java, System Design, SQL, REST APIs) & 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 Perennation Computer Solutions Global Private Limited Core Values, Learning Agility & Offer Terms Demonstrate passion, strong communication, and readiness for full-time collaboration.

Technical questions 5

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.

⚡ Practice in the code editor

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.

⚡ Practice in the code editor

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.

⚡ Practice in the code editor

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.

⚡ Practice in the code editor

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.

⚡ Practice in the code editor

Behavioural & HR questions 3

Why do you want to join Perennation Computer Solutions Global Private Limited as a Software Engineer?
Highlight Perennation Computer Solutions Global Private Limited's market reputation, recent tech innovations, and how your skills in Python directly solve their team's objectives.

Describe a challenging bug or academic project roadblock and how you resolved it.
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?
Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.

About the role

Eligibility & process

Who can apply

Skills & stack

Selection process

Prep kit

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