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REQUIREMENT_ID_189 β€’ 3-DAY_ACTIVE_POLICY

Mainframe Apprentice

Company
Company Cgi
Type
Opportunity Type Internship
Salary
Stipend / Salary 3 LPA (approx.)
Location
Location Hyderabad, Andhra Pradesh, India
Posted Date
Posted Date Yesterday
COBOL JCL DB2 VSAM CICS Mainframe Communication Insurance
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Aptitude Practice Questions & Mock Tests Open Resource β†—
Curated logical, quantitative, and verbal reasoning problems for the initial online screening round.
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Company-Specific Interview Preparation Corner Open Resource β†—
Detailed interview experiences, exam formats, and previous test questions for Cgi and tech roles.
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Technical Placement Cheat Sheets & Question Bank Open Resource β†—
High-yield coding cheat sheets, core CS fundamentals (OOP, DBMS, OS, Networks), and rapid revision guides.
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Algorithm, DSA & Live Code Debugger Practice Open Resource β†—
Hands-on problem sets to improve coding speed and step-by-step memory debugging.

Graduates (B.E/B.Tech or B.Sc) in Computer Science, Information Technology, Electronics & Communication or related streams; Minimum 60% aggregate (or CGPA 6.0/10); Batch 2023‑2025 preferred; No active backlogs at the time of joining; Strong communication skills and willingness to learn mainframe technologies.

1
Round 1: Online aptitude test (logical reasoning, quantitative & verbal)
2
Round 2: Technical interview (mainframe concepts, coding, problem solving)
3
Round 3: HR interview (behavioral fit, career aspirations).
CGI is a global leader in IT and business consulting services with a strong presence in India. With over 80,000 professionals worldwide, CGI helps clients across industries transform their operations through technology, analytics and managed services. The company prides itself on a culture of ownership, collaboration and continuous learning, offering employees the chance to work on large‑scale projects for Fortune‑500 clients while enjoying a supportive, inclusive environment. In India, CGI has built a reputation for nurturing fresh talent, providing structured training programs, and fast‑tracking high‑potential individuals into senior technical and consulting roles. The Mainframe Apprentice role is designed for recent graduates who have completed foundational training in mainframe technologies and are eager to gain real‑world experience. As an apprentice, you will work under seasoned senior developers, learning the end‑to‑end lifecycle of mainframe applications used in critical domains such as banking, insurance and government services. You will be part of a vibrant team that follows CGI’s disciplined development methodology, ensuring high‑quality code, robust testing and reliable production support. **Key Responsibilities** 1. Assist in the development, enhancement and maintenance of mainframe applications under senior guidance. 2. Write, modify and execute basic JCL jobs, monitor job outputs and resolve simple abends. 3. Perform COBOL coding, unit testing and debugging with supervision. 4. Develop and run basic DB2 SQL queries to support data extraction and validation tasks. 5. Analyse compile‑time and run‑time errors, and document resolutions. 6. Follow CGI’s coding standards, change‑management procedures and documentation guidelines. 7. Participate in daily stand‑ups, sprint planning and knowledge‑sharing sessions. 8. Gradually take ownership of small modules or support tickets as competence grows. 9. Collaborate with senior developers, business analysts and support teams to understand functional requirements. 10. Continuously learn new mainframe utilities, z/OS concepts and emerging tools used within CGI’s ecosystem. **Tech Stack**: COBOL, JCL, DB2, VSAM, CICS, z/OS, Mainframe utilities, basic SQL, and version‑control tools. **Growth Path**: Starting as an apprentice, you can progress to Mainframe Developer, Senior Developer, Technical Lead and eventually Architecture or Consulting roles within CGI’s extensive service lines. The company offers regular skill‑upgradation workshops, certifications and mentorship programs to accelerate career growth. **Why Join CGI?** - Work on mission‑critical mainframe systems for leading insurers and financial institutions. - Benefit from a structured apprenticeship program that blends classroom learning with hands‑on project exposure. - Enjoy a culture that values ownership, teamwork and personal well‑being, with flexible work‑from‑home options where applicable. - Access global expertise, cross‑functional mobility and a clear path to senior leadership positions. Overall, the Mainframe Apprentice position offers a solid foundation for a rewarding career in enterprise‑grade technology, backed by CGI’s strong brand and commitment to employee development.

Cgi β€” AI & Machine Learning Interview Guide

Previously asked questions, exam syllabus, coding benchmarks & round strategy.

APTITUDE & LOGIC πŸ“–
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 β†—
COMPANY GUIDE 🎯
Cgi Interview Preparation Corner

Comprehensive guide covering typical interview formats, common questions, and preparation tips for Cgi and off-campus tech roles.

Open Resource β†—
MOCK TESTS & PAPERS πŸ“
Comprehensive Interview Prep Resources & Syllabus

Collection of previous year questions, company-specific test patterns, and interview experiences for technical and HR rounds.

Open Resource β†—
CODING PRACTICE πŸ’»
Algorithm and Data Structure Problem Set

Practice problems to improve coding proficiency and algorithm problem-solving speed for technical rounds.

Open Resource β†—
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 (COBOL, JCL, DB2, VSAM, CICS, Mainframe, Communication, Insurance) & 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
Cgi Core Values, Learning Agility & Offer Terms
Demonstrate passion, strong communication, and readiness for full-time collaboration.
What is the bias-variance tradeoff and how do you prevent overfitting? Answer β–Ό
Model Answer: High bias leads to underfitting (oversimplified model), high variance leads to overfitting (captures noise). Mitigate using L1/L2 Regularization, Dropout, Cross-Validation, and data augmentation.
Explain the difference between Precision, Recall, and F1-Score. Answer β–Ό
Model Answer: Precision = TP / (TP + FP) (correctness of positive predictions). Recall = TP / (TP + FN) (coverage of actual positives). F1-Score is the harmonic mean of Precision and Recall.
How does Gradient Descent work and what is the role of Learning Rate? Answer β–Ό
Model Answer: It optimizes loss functions by iteratively moving weights in the direction of negative gradient. A large learning rate may overshoot the minimum; a small rate causes slow convergence.
What is the difference between Supervised, Unsupervised, and Self-Supervised learning? Answer β–Ό
Model Answer: Supervised uses labeled data (X -> y). Unsupervised finds hidden patterns in unlabeled data (clustering/PCA). Self-supervised generates labels from input data (e.g. masked language modeling in BERT/Transformers).
Why do you want to join Cgi as a Mainframe Apprentice?
Preparation Tip: Highlight Cgi's market reputation, recent tech innovations, and how your skills in COBOL 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.

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