Database Administrator at Wissen Technology · Bengaluru (Bangalore) · 6 - 10 years · ₹15L - ₹30L / yr · Profitable · Posted 25 May 2026

JD:
• 6–10 years in database administration
• Strong hands-on experience with PostgreSQL
• Experience supporting production-grade systems
• Communicating with team members and clients requires strong active listening skills, clear verbal and nonverbal communication skills.
Technical Skills
• PostgreSQL: o indexing, partitioning, vacuuming o query optimization (EXPLAIN/ANALYZE)
• Experience with: o high-volume transactional systems o time-series / IoT data (preferred)
• Knowledge of: o replication (streaming/logical) o backup tools (pg_dump, WAL, etc.)
• Familiarity with cloud-managed DB services (AWS RDS, Aurora, etc.)

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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Senior Database Administrator (DBA)
Database Reliability & Performance • Senior Individual Contributor
- Experience: 6–9 years in production database administration / engineering
- Level: Senior Individual Contributor (hands-on)
- Function: Data Platform — reliability, performance, and governance across relational and distributed SQL & NoSQL DBs.
About the Role
We are hiring a Senior Database Administrator to own the health, performance, and reliability of the data layer behind a high-scale, multi-tenant platform. Our environment spans several independent PostgreSQL database instances, a cache-first read tier, change-data-capture pipeline, analytics and archival stores. Should be capable of implementing NoSQL stores (Cassandra / ScyllaDB) & MySQL end to end as we scale.
This is a hands-on senior IC role for someone who has run demanding production databases and wants full ownership: partitioning and maintenance, performance tuning, monitoring, uptime, disaster recovery, and the security and data-governance documentation that keeps a regulated, multi-tenant platform audit-ready. You will work closely with, and take direction from, engineering leadership — translating priorities into a well-run, well-documented data platform.
What You'll Own
PostgreSQL Depth
- Administer multiple production PostgreSQL instances (v16+), including schema/DDL review, migrations, and release coordination.
- Design and maintain table partitioning strategies (range/hash/time-based) and automate partition lifecycle — creation, retention windows, and safe drops.
- Own query and instance performance tuning: EXPLAIN/ANALYZE, indexing strategy, autovacuum/bloat management, connection pooling (e.g. PgBouncer), and parameter-group tuning.
- Execute zero-downtime schema changes using expand–migrate–contract / blue-green patterns; assess lock impact and avoid long ACCESS EXCLUSIVE locks on hot tables.
- Manage replica topology (writer/reader endpoints), replication lag, and read-scaling as load grows.
- Partner with app teams on migration tooling (e.g. Flyway) and paired forward/rollback scripts; enforce idempotent, reviewed, tested DDL.
NoSQL & Scale
- Data-model, deploy, and operate distributed NoSQL clusters — Cassandra and/or ScyllaDB — including partition/clustering key design, compaction strategy, repair, and node operations (bootstrap, decommission, scale-out).
- Lead the planned migration of high-volume payload tables from partitioned PostgreSQL to Cassandra/ScyllaDB: capacity planning, dual-write/backfill design, cutover, and validation.
- Tune distributed-store read/write paths, consistency levels, and cluster sizing for predictable latency at scale.
- Support the cache-first architecture (Redis) and change-data-capture / streaming pipelines (e.g. Kafka) that move data to analytics and cold-archival stores.
Operations, Reliability & DR
- Own database uptime and SLOs; build and maintain monitoring, alerting, and dashboards for the key signals (latency, replication lag, CPU/IO, connections, vacuum lag, error rates).
- Define and regularly test backup and disaster-recovery strategy — RPO/RTO targets, point-in-time recovery, restore drills, and cross-AZ / future multi-region readiness.
- Drive incident response for database-related issues: triage, mitigation, root-cause analysis, and follow-up actions.
- Write and maintain runbooks (partition maintenance, failover, archival, DR, migration procedures) and participate in an on-call rotation for the data layer.
- Establish production-change discipline: pre-flight and post-deploy verification, rollback criteria, and backup verification before destructive operations.
Security, Governance & Documentation
- Implement and maintain database access control — least-privilege roles, schema-scoped permissions, and row-level security (RLS) for multi-tenant isolation.
- Own data-governance documentation: PII maps, per-table retention policies, audit-readiness, and the controls behind privacy-regulation compliance (e.g. GDPR / DPDP-style erasure and legal-hold workflows).
- Author and maintain architecture decision records (ADRs), schema documentation, and monitoring/runbook docs so the data platform is legible to the wider team.
- Uphold encryption-at-rest/in-transit posture and safe handling of sensitive columns; keep the data layer aligned with the platform's compliance requirements.
Coding & Automation Bar (Required)
This role is automation-first, not click-ops. The right candidate treats repetitive database work as something to script away and can drop into application code when a problem demands it.
- Strong scripting in Python and Bash for automation of maintenance, backups, partition management, backfills, and health checks.
- Comfortable with infrastructure-as-code (e.g. Terraform) and configuration management (e.g. Ansible) for reproducible database infrastructure.
- Solid SQL and PL/pgSQL; able to read and debug application-layer database code and, worst case, write or patch application code (e.g. Python/Node/Java) to unblock a fix.
- Fluent with Git-based workflows, code review, and CI for database migrations and tooling.
Required Qualifications
- 6–9 years operating relational databases in demanding production environments, with deep PostgreSQL expertise (internals, partitioning, replication, performance tuning).
- Hands-on experience running at least one distributed NoSQL store in production — Cassandra or ScyllaDB strongly preferred (other wide-column/distributed stores considered).
- Proven ownership of backup/DR, monitoring, and incident response for production databases.
- Strong scripting/automation background (Python, Bash) and experience with IaC.
- Experience with managed cloud databases (AWS RDS or equivalent) and understanding of instance/parameter-group tuning, replicas, and failover.
- Experience designing for multi-tenancy and data isolation at scale.
- Clear written communication — able to produce runbooks, ADRs, and governance docs a team can rely on.
Nice to Have
- Experience migrating workloads from PostgreSQL to Cassandra/ScyllaDB (or similar relational-to-distributed migrations).
- Familiarity with Redis as a cache tier and with CDC / streaming pipelines (e.g. Kafka, Debezium).
- Exposure to Flyway (or Liquibase), pgTAP or similar schema testing, and PgBouncer.
- Working knowledge of privacy regulations (GDPR, India DPDP) and audit/compliance processes.
How You Work
- Ownership mindset — takes a directive and runs it to done, with sound judgment on trade-offs.
- Reliability-first and detail-oriented; disciplined about verification, rollback, and documentation.
- Collaborative in a high-performing engineering team; communicates clearly with developers and leadership.
- Pragmatic and scale-aware — designs for where the platform is going, not just where it is.
The recruiter has not been active on this job recently. You may apply but please expect a delayed response.
Key Responsibilities
Administer, monitor, and support database platforms including Couchbase, PostgreSQL, and Oracle.
Perform database performance tuning, optimization, and troubleshooting.
Write and optimize complex SQL queries, stored procedures, and scripts.
Ensure database availability, reliability, backup, recovery, and security compliance.
Support production incidents, root cause analysis, and ongoing operational improvements.
Collaborate with application, infrastructure, and support teams to resolve database-related issues.
Required Skills
5 to 10 years of hands-on experience in Database Administration.
Strong experience with Couchbase, PostgreSQL, and/or Oracle databases.
Expertise in performance tuning, query optimization, indexing, and SQL development (Complex Queries, Stored Procedures, Scripts)
Experience with database monitoring, backup, recovery, and maintenance activities.
Production Support, Troubleshooting & RCA
Strong analytical and troubleshooting skills.
Nice to Have
Experience with cloud platforms such as AWS, Azure, or GCP.
Exposure to database automation and scripting
Role overview:
· Technology Expertise & DBA Skill Set
· Cloud Platforms: AWS, Azure
· Database IaaS: Oracle, Microsoft SQL Server, PostgreSQL
· Database PaaS: CosmosDB, MySQL, SQL Managed Instance, RDS Aurora, MongoDB
· Infrastructure as Code: Terraform, Ansible
· CI/CD & Automation: GitHub Actions, GitLab, Azure DevOps
· Programming & Scripting: Python, Bash/Shell, PowerShell
· Operating Systems: Linux/Unix (RHEL, Ubuntu), Window
Database Team Overview
Our Database Team is the foundation of enterprise-grade databases delivering secure, compliant and high-performing database platforms across Azure and AWS. We provide managed services for Oracle and Microsoft SQL Server, operating in a system DBA role to ensure platform reliability, resilience, and operational excellence. In addition, we support PaaS and RDS database services by acting as the platform team defining policies, enforcing security standards, and managing networking configurations while enabling self-service capabilities for application teams to consume these services efficiently.
What would you do here:
· Database Security & Compliance: Implement robust security controls, encryption, and auditing to safeguard sensitive data and meet regulatory requirements.
· Lifecycle Management: Oversee patching, upgrades, and end-of-life transitions to maintain platform stability and minimize risk.
· Performance Optimization: Monitor and tune databases for optimal performance across diverse workloads.
· Automation & Operational Excellence: Design and deploy automation for provisioning, monitoring, and maintenance to achieve “brilliant basics” and reduce manual intervention.
· Business-Critical Certification: Validate and certify database environments to support mission-critical applications with high availability and disaster recovery strategies.
· Incident & Problem Management: Provide rapid response and root-cause analysis for database-related incidents to ensure business continuity.
· Capacity Planning & Scalability: Forecast growth and optimize resources to support evolving business needs.
Best Regards!
Job Description (JD) for the MySQL Database Administrator role
Experience: 4-8 Years
Location : Mumbai
Job Title: MySQL Database Administrator
Responsibilities
- Provision and configure MySQL database instances in clustered and non-clustered environments.
- Ensure database performance, security, availability, and reliability.
- Prepare and maintain database documentation, technical specifications, and operational procedures.
- Perform database upgrades, backups, restoration, recovery, and migrations.
- Monitor database and server resource utilization and perform performance tuning and optimization.
- Manage database users, access privileges, periodic access reviews, audits, and documentation.
- Configure, monitor, and troubleshoot MySQL replication.
- Collaborate with application, infrastructure, development, and other stakeholder teams to resolve database-related issues.
- Provide database and application deployment support, as required.
- Perform database backup and restoration validation, data integrity checks, and post-migration validations.
- Follow database change management, security, and operational best practices.
Skills and Qualifications
- Strong hands-on experience in MySQL database administration.
- Good working knowledge of recent MySQL versions, preferably MySQL 8.x.
- Understanding of MySQL storage engines, including InnoDB and MyISAM.
- Practical experience in configuring, monitoring, and troubleshooting MySQL replication.
- Knowledge of MySQL administration best practices, security, and high availability.
- Proficiency in writing, analyzing, and optimising SQL queries.
- Experience with MySQL features such as the Event Scheduler, audit logging, and performance monitoring.
- Ability to assess database resource requirements based on application workloads and technical specifications.
- Familiarity with other SQL and NoSQL databases, such as PostgreSQL and MongoDB.
- Understanding of MySQL limitations compared with other relational database platforms and the ability to identify suitable workarounds.
- Working knowledge of version control tools such as Git, SVN, or CVS.
- Graduate degree in a relevant discipline and good verbal and written communication skills.
Good to Have
- Basic Linux administration, command-line troubleshooting, and Bash scripting skills.
- Familiarity with application server frameworks such as JBoss, GlassFish, and WildFly.
Data Platform Engineer
Design, automate, and scale our data platform — this is an engineering role, not a traditional "DBA job.
Must-have :
- Data modeling & schema design (from first principles, not just maintenance)
- PostgreSQL (deep, hands-on — partitioning, replication, tuning)
- Any distributed NoSQL store (Cassandra, ScyllaDB, or similar wide-column/distributed DB) (real production experience)
- Python (automation & tooling, not just scripting)
- DevOps & CI/CD (building pipelines, not just using them)
- Terraform (infrastructure-as-code)
You'll:
- Design schemas, partitioning strategies, and lead the Postgres → Cassandra migration end-to-end
- Own PostgreSQL performance, replication, and zero-downtime schema changes
- Build Python-based automation to eliminate repetitive DB work
- Own CI/CD pipelines and Terraform-based infra provisioning
- Drive uptime, DR, monitoring, and incident response
- Own multi-tenant security (RLS, least-privilege access) and data governance
Experience: 4–9 years, data/database/platform engineering in demanding production environments.
Bonus: Kafka/Debezium (CDC), Redis, Flyway/Liquibase, GDPR/DPDP exposure.

Job Title: Senior Data Engineer
Position Summary
We are seeking a highly skilled Data Engineer with strong expertise in reporting infrastructure, data modeling, and analytics platforms. This role will focus on building scalable reporting solutions, optimizing data pipelines, and enabling data-driven decision-making across the organization. The ideal candidate will have deep experience with databases, data warehousing, and complex query development. While Ruby on Rails experience is beneficial, the primary emphasis is on data engineering and reporting systems.
Key Responsibilities
- Design, develop, and maintain reporting infrastructure and data platforms.
- Build and optimize complex SQL queries, data models, and reporting datasets.
- Develop scalable ETL/ELT pipelines and data integration processes.
- Design and maintain database schemas to support analytics and reporting requirements.
- Collaborate with business stakeholders to understand reporting needs and translate them into technical solutions.
- Implement data quality, governance, and performance best practices.
- Support and enhance enterprise reporting solutions and dashboards.
- Work with large-scale datasets in cloud data warehouse environments.
- Troubleshoot reporting issues and optimize database performance.
- Partner with engineering and product teams to establish sustainable data architecture.
Must Have: Technical Skills
- PostgreSQL
- Snowflake
- Advanced SQL
- Data Modeling
- Data Warehousing
- Reporting & Analytics Infrastructure
- ETL/ELT Development
- Query Performance Tuning
Success Profile:
The ideal candidate is a data-focused engineer who enjoys working with complex datasets, designing scalable reporting solutions, and building foundational infrastructure that empowers analytics and business intelligence teams. They should be comfortable navigating databases, optimizing queries, and translating business reporting needs into robust technical implementations.
Experience Range: 5-10 years
Role Type: Individual Contributor / Senior Engineer
Primary Focus: Reporting Infrastructure, Data Engineering, Data Warehousing, and Analytics Enablement.
- 6–7 years of experience operating and enhancing enterprise-scale data platforms.
- Hands-on experience applying DataOps, DevOps, and software engineering practices to data platform operations.
- Professional experience working with AWS cloud environments.
- Experience monitoring, troubleshooting, and remediating issues across data pipelines, orchestration tools, and platform services.
- Working knowledge of data observability concepts and practices.
- Hands-on proficiency with SQL, relational database concepts, and data warehousing.
Job Description:
Mandatory Skills: Linux Administration, Production Support, Database Support, and Monitoring & Observability, with exposure to Cloud and Automation.
Primary Skills: Linux Administration, Production Support
Secondary Skills: Oracle SQL, Splunk, Grafana, AppDynamics, Cloud (OCP/AWS/Azure/GCP), Incident Management, AI/Automation (Good to have)
About VerbaFlo.ai
VerbaFlo.ai is a fast-growing AI SaaS startup revolutionizing how businesses leverage AI-powered solutions. As a part of our dynamic team, you’ll work alongside industry leaders and visionaries to drive innovation and execution across multiple functions.
Role Overview
We are looking for a Senior Backend Engineer to design and develop user-friendly, scalable, and high-performance web applications. This role requires deep expertise in backend technologies, attention to detail, and the ability to collaborate with cross-functional teams.
Responsibilities
- Design, develop, and maintain scalable backend systems, APIs, and data pipelines.
- Collaborate closely with frontend engineers, product managers, and AI teams to deliver cohesive features and seamless user experiences.
- Ensure the reliability, security, and performance of backend systems.
- Write clean, maintainable, and efficient code using modern backend practices.
- Implement automated testing, CI/CD workflows, and infrastructure as code (where applicable).
- Own the end-to-end lifecycle of backend features, from architecture to deployment.
- Monitor production systems and resolve performance and scalability issues.
- Contribute to architectural decisions and help evolve our engineering best practices.
Requirements
- 4–6 years of experience in backend development in startups, preferably in SaaS or AI-driven products.
- Proficiency in Node.js, Python, or Go
- Deep understanding of RESTful API design.
- Strong experience with databases: PostgreSQL, MongoDB, ElasticSearch.
- Exposure to message queues, job schedulers, or event-driven architectures (e.g., SQS, Celery, etc).
- Familiarity with cloud platforms like AWS, GCP, or Azure and containerization tools (Docker, Kubernetes).
- Experience with Git, CI/CD tools, and writing unit/integration tests.
- Strong problem-solving skills and a mindset geared toward performance and security.
- Excellent communication and collaboration abilities.
Why Join Us?
- Work directly with top leadership in a high-impact role.
- Be part of an innovative and fast-growing AI startup.
- Opportunity to take ownership of key projects and drive efficiency.
- A collaborative, ambitious, and fast-paced work environment.
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If you’re looking for an exciting role that combines strategy, execution, and leadership exposure, we’d love to hear from you!

Job Description – Senior Database Architect (Couchbase)
Experience: 12+ Years
Location: Bangalore
Notice Period: Immediate Joiners Only
Employment Type: Full-Time
Job Summary
We are looking for a highly experienced Senior Database Architect with strong expertise in Couchbase and NoSQL database technologies. The ideal candidate will be responsible for designing enterprise-grade database architectures, driving database performance optimization, ensuring high availability, and providing technical leadership for large-scale, distributed database systems.
Key Responsibilities
- Design and implement scalable, highly available, and secure Couchbase database architectures for enterprise applications.
- Define database architecture strategies, data modeling standards, and best practices.
- Lead Couchbase cluster design, deployment, configuration, replication, and capacity planning.
- Optimize SQL++ (N1QL) queries, indexing strategies, data access patterns, and overall database performance.
- Architect disaster recovery, backup, restore, failover, and business continuity solutions.
- Troubleshoot complex database performance issues and conduct root-cause analysis.
- Lead database migration, modernization, and integration initiatives.
- Establish database security policies, access controls, encryption, and compliance standards.
- Collaborate with application architects, development teams, DevOps, and infrastructure teams to align database architecture with business requirements.
- Evaluate database technologies and recommend solutions based on scalability, performance, availability, and cost.
- Provide technical leadership, mentor database engineers, and conduct architecture and design reviews.
- Develop database monitoring, alerting, automation, and operational excellence strategies.
Required Skills and Qualifications
- 12+ years of experience in database architecture, database engineering, or database administration, with strong hands-on expertise in Couchbase.
- Extensive experience in Couchbase Server architecture, cluster management, replication, and distributed data systems.
- Strong expertise in SQL++/N1QL, indexing, query profiling, and performance tuning.
- In-depth knowledge of NoSQL data modeling, document design, partitioning, and scalability principles.
- Experience designing high-availability, disaster recovery, backup, and recovery solutions.
- Proven experience handling large-scale databases and mission-critical enterprise applications.
- Strong understanding of database security, access management, and performance monitoring.
- Experience with Linux, scripting, and database automation.
- Excellent troubleshooting, analytical, communication, and stakeholder management skills.
Good to Have
- Experience with AWS, Microsoft Azure, or Google Cloud Platform.
- Knowledge of Kubernetes, Docker, and containerized deployments.
- Experience with infrastructure as code, CI/CD pipelines, and automation tools.
- Exposure to database migration, cloud-native architectures, and microservices.
- Experience defining database governance, architecture standards, and technology roadmaps.
Candidate Profile
- Total Experience: 12+ Years
- Core Technology: Couchbase
- Primary Focus: Database Architecture, NoSQL, Performance Optimization, High Availability, and Scalability
- Location: Bangalore
- Joining Requirement: Immediate Joiners Only
- Interview Process: Technical Discussion and Management Round










