📋 Job Details at a Glance 📍 Location Karnataka, India 🏢 Company Zensar 👥 Experience Fresher 🎓 Qualification Relevant technical qualification and demonstrated shipping experience 📅 Eligible Batch 2024, 2025, 2026 📄 Job Type Full Time 💰 Salary Not Disclosed 🏢 Industry Technology 🛠 Key Skills Cassandra Performance Tuning Read/write performance optimization Latency optimization Compaction tuning Caching Consistency levels Tombstones SSTables Cassandra DBA Jr at Zensar — Full Details & How to Apply Zensar is hiring a Cassandra DBA Jr in Karnataka, India , where candidates will perform hands-on analysis and optimization of read/write performance and latency in Cassandra databases. This full-time, onsite role is available for fresher graduates with relevant technical qualifications and demonstrated shipping experience. This Cassandra DBA Jr role directly supports database efficiency by requiring the analysis and optimization of read/write performance, latency, and key Cassandra configurations such as compaction tuning , caching , consistency levels , tombstones , and SSTables . The position involves practical work with cluster management and performance tuning, ensuring stable and responsive data operations within Zensar ’s technology infrastructure. The job posting identifies Zensar as a technology company operating in Karnataka, India . The role is part of Zensar ’s technology operations and focuses on database performance within real-world systems. No additional company details are provided beyond this context. Candidates with 2024, 2025, 2026 graduation eligibility, a relevant technical qualification and demonstrated shipping experience , and fresher experience are eligible. The salary for this position is Not Disclosed . In this role, you will gain practical experience with Cassandra Performance Tuning , Read/write performance optimization , Latency optimization , Compaction tuning , Caching , Consistency levels , Tombstones , and SSTables . This hands-on exposure builds foundational skills in database administration and performance engineering, offering a clear pathway to advance into senior DBA or cloud database roles. 📊 Role Difficulty: Low | Competition Level: Medium | Fresher Friendly: Yes NexisGrow.com features this opportunity as part of its curated tech job listings. All details are sourced from the official job posting. Apply online before the opportunity closes. Search for Cassandra DBA Jr jobs , explore Zensar recruitment , and discover Karnataka, India jobs with real technical requirements. Job Role & Responsibilities The Cassandra DBA Jr at Zensar ensures high-availability data operations by directly tuning performance metrics and managing cluster stability using Cassandra tools. This role focuses on measurable improvements in read/write performance , latency , and consistency levels to support real-time application workflows. Analyze read/write performance using Cassandra query logs and latency metrics to identify bottlenecks in data access patterns. Optimize compaction tuning by adjusting compaction strategies to reduce SSTable growth and improve disk I/O efficiency. Implement caching configurations to reduce query latency by preloading frequently accessed data into memory. Tune consistency levels based on application requirements to balance data durability and response time in distributed systems. Monitor tombstones in SSTables to detect and resolve data deletion inefficiencies that impact query performance. Collaborate with engineering teams to resolve slow queries by profiling execution plans using Cassandra debug tools and nodetool commands. Perform safe node expansion and capacity upgrades by validating cluster health and ensuring minimal latency spikes during operations. Document performance tuning procedures and optimization strategies in structured formats for future operational audits and team onboarding. This role demands direct ownership of database performance outcomes, with every action tied to measurable latency , read/write throughput , and cluster stability metrics in production environments. Required Skills & Technical Competencies The Cassandra DBA Jr role requires a focused technical profile centered on Cassandra Performance Tuning and read/write performance optimization to deliver measurable improvements in data operations. All skills must be demonstrated through hands-on use in real systems or simulated environments. Technical Skills Cassandra Performance Tuning — entry — used to evaluate and improve overall cluster efficiency using nodetool and system tables to reduce operational overhead. Read/Write Performance Optimization — entry — applied to enhance transaction speed by analyzing query patterns and adjusting data partitioning strategies. Latency Optimization — entry — executed by measuring and reducing response time in query execution using metrics from Cassandra monitoring tools. Compaction Tuning — entry — implemented to manage SSTable compaction schedules and reduce disk usage and I/O load during background operations. Caching — entry — configured to improve data retrieval speed by setting up memtable and on-disk cache policies in Cassandra clusters. Consistency Levels — entry — applied to adjust read and write operations based on application needs, balancing durability and response time. Tombstones — entry — identified and managed to prevent data inconsistency by detecting and cleaning stale deletion records in SSTables . SSTables — entry — monitored and maintained to ensure efficient data storage and retrieval through proper lifecycle management and compaction. When showcasing these skills, emphasize hands-on configuration of Cassandra tools, performance metric analysis , and real-world tuning outcomes in project documentation or lab environments. Eligibility Criteria This role is designed for fresher candidates with a relevant technical qualification and demonstrated experience in database operations or data management projects . It targets students from 2024, 2025, and 2026 batches. Must hold a relevant technical qualification such as B.Tech, B.Sc. in Computer Science or a related field. Eligible only for students from the 2024 , 2025 , and 2026 academic batches. Experience requirement is explicitly for fresher candidates with no prior industry experience. CGPA or academic performance is not specified in the eligibility criteria. Project work, GitHub repositories, or internship experience is not required but may be considered for project-based demonstration. Portfolio or technical documentation must reflect hands-on use of Cassandra or similar database systems. Documentation & Portfolio Requirements Your resume must include a clear section on technical projects involving Cassandra or data storage systems, with specific details on configuration, tuning, and performance outcomes. Include tool usage , metrics , and before/after performance data where available. For this role, prioritize showing specific Cassandra tuning actions such as adjusting compaction strategy , setting cache size , or reducing latency in a real or simulated environment — not just general database knowledge. Salary for Cassandra DBA Jr at Zensar 💰 Compensation Not Disclosed The advertised compensation for the Cassandra DBA Jr role at Zensar is Not Disclosed . The exact in-hand figure and any additional components are confirmed by the company during the offer or HR discussion stage. Recommended Courses & Preparation Tips for Cassandra DBA Jr Upskilling with the right resources significantly enhances your chances of selection for the Cassandra DBA Jr role by demonstrating relevant expertise and commitment to the field. Recommended Courses & Resources Cassandra Performance Tuning — Mastering performance tuning is essential for optimizing Cassandra databases effectively. KodNest — This course provides foundational knowledge and practical skills in database management. Boost your profile with relevant certifications at NexisGrow GetCertified — strengthen your application before you apply. Common Mistakes to Avoid ❌ Applying without demonstrating experience in Cassandra Performance Tuning — Ensure your resume highlights relevant experience. ❌ Using a generic resume — Tailor your resume to the specific responsibilities outlined in the job description. ❌ Listing technologies without context — Provide details on how you applied technologies like Cassandra in previous roles. ❌ Ignoring qualification requirements — Verify that you meet the specified qualifications before applying. ❌ Including unrelated technologies — Focus on relevant skills and experiences that align with the job description. ❌ Failing to verify the official Apply URL — Always check the application link before submission. Before You Apply — Checklist ✅ Confirm the job title, company, location, work mode, and experience requirement. ✅ Check that you meet the supplied qualification criteria. ✅ Verify eligibility against the supplied eligible batches and experience requirement. ✅ Add relevant supplied JD keywords naturally to your resume. ✅ Highlight projects or experience related to the supplied technologies and responsibilities. ✅ Remove unsupported technologies, achievements, or experience claims. ✅ Open and verify the supplied Apply URL before submitting the application. ✅ Save the job details, application date, and role-specific resume version for tracking. Resume Tailoring & ATS Keywords for Cassandra DBA Jr Optimizing your resume for ATS is crucial for the Cassandra DBA Jr role, as it ensures your application is seen by hiring managers. ATS Keywords to Include Cassandra Performance Tuning Read/Write Performance Optimization Latency Optimization Compaction Tuning Caching Consistency Levels Tombstones SSTables Node Expansion Cluster Management Resource Bottlenecks Slow Queries Resume Tips for This Role Highlight Cassandra Performance Tuning prominently on your resume. Emphasize experience with performance optimization techniques relevant to Cassandra. Include projects that demonstrate skills in database management and performance tuning. Use exact keywords from the job description naturally to align with ATS requirements. Avoid adding unsupported technologies or claims that cannot be substantiated. Build an ATS-optimized resume for this role using NexisGrow Resume Builder — free for all job seekers. Pro tip: Avoid including unrelated technologies or unsupported claims in your resume for this role. How to Apply for Cassandra DBA Jr at Zensar Apply Now — Zensar Open the supplied official Apply URL and confirm the job title and company. Prepare a resume aligned with the supplied skills, responsibilities, qualification, and experience requirement. Complete the official application form accurately and avoid unsupported claims. Submit the application and save the confirmation or application reference if the portal provides one. Record the application date and monitor the official company portal or registered email for updates. Applications reviewed on rolling basis — early submission recommended. Apply Now — Zensar NexisGrow.com does not charge any fees for job applications. Zensar Zensar is a technology company based in Karnataka, India. It offers onsite roles in database administration, specifically for a Cassandra DBA Jr position. This role operates within the technology industry and supports core database performance and operations tasks. The team focuses on Cassandra Performance Tuning , including read/write optimization, latency reduction, and tuning of compaction, caching , consistency levels , tombstones , and SSTables . They analyze hot partitions, slow queries, and resource bottlenecks to ensure efficient cluster operations. This role provides early-career exposure to real-world database management, including performance tuning and cluster operations. It allows freshers to gain hands-on experience with key database technologies and operational workflows. Company Details Industry Technology Location Karnataka, India Connect With Us Careers Apply Now Website 🔗 fa-etvl-saasfaprod1.fa.ocs.oraclecloud.com Frequently Asked Questions Interview · Role · Salary · Growth ? Who can apply for this role? Eligibility Tap to expand + Answer Candidates with a relevant technical qualification from the eligible batches of 2024, 2025, and 2026 can apply. ? What technical skills are most important for this role? Skills Tap to expand + Answer Cassandra Performance Tuning and Read/Write Performance Optimization are the most important skills for this role. ? What is the expected salary for this position? Salary Tap to expand + Answer Salary Display is 'Not Disclosed'. ? What should I expect after applying? Hiring Process Tap to expand + Answer The exact hiring stages are not specified in the job posting. ? How should I prepare for the interview? Preparation Tap to expand + Answer 1. Review Cassandra performance tuning techniques. 2. Understand read/write optimization strategies. 3. Familiarize yourself with latency optimization. 4. Prepare to discuss database management experiences. 5. Practice problem-solving scenarios related to database performance. ? Is this role remote, hybrid, or onsite? Work Mode Tap to expand + Answer This role is onsite, as specified in the job posting. ? What career exposure can this role provide? Growth Tap to expand + Answer This role provides exposure to database management, performance tuning, and cluster management responsibilities. ? What should I highlight in my resume for this role? Resume Tap to expand + Answer Highlight skills in Cassandra Performance Tuning, Read/Write Performance Optimization, and relevant technical qualifications. ? Is there a last date to apply? Application Tap to expand + Answer Not specified in the job posting. ? Is there a probation period? Probation Tap to expand + Answer Not specified in the job posting. ? What is the work environment like for this role? Culture Tap to expand + Answer The role involves collaboration with engineering teams to optimize database performance. ? Can freshers apply for this role? Fresher Tap to expand + Answer Yes, freshers can apply as the experience requirement is for entry-level candidates. 🔗 Explore More on NexisGrow More jobs in Karnataka Browse all Tech jobs Latest Fresher jobs More jobs at Zensar Work From Home jobs Ready to Apply? Don't Miss This Opportunity! Apply only via the official link. NexisGrow.com charges zero application fees. 👉 Apply Now — Official Link NexisGrow.com does not charge any application or registration fees. Beware of fraudulent offers. Naukri ki baat, NexisGrow ke saath • NexisGrow.com