Senior database Administor at Wissen Technology · Pune · 5 - 10 years · Profitable · Posted 22 Jan 2025

- TIDB (Good to have)
- Kubernetes( Must to have)
- MySQL(Must to have)
- Maria DB(Must to have)
- Looking candidate who has more exposure into Reliability over maintenance

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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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.
Qualifications
● 3-8 years experience in Cloud Database Administration
● Proficient in PostgreSQL database management, including installation, configuration, and performance tuning.
● Experience with Amazon RDS or Cloud SQL and managing databases in cloud environments.
● Proficient in PostgreSQL/MySQL database management, including installation, configuration, and performance tuning.
● Proven experience as a Database Administrator with a focus on
PostgreSQL/MySQL.
● In-depth knowledge of database design, implementation, and management for both PostgreSQL/MySQL environments.
● Familiarity with database security, backup procedures, and performance tuning for both systems.
● Strong analytical and problem-solving skills.
● Excellent communication and collaboration abilities.
● Relevant certifications (e.g., PostgreSQL Certified Professional, MySQLDatabase Administrator) are a plus.
Skills:
● Expertise in PostgreSQL/MySQL database management systems.
● SQL programming and query optimization for both databases.
● Data modeling and database design for PostgreSQL/MySQL.
● Backup and recovery procedures for both environments.
● Performance tuning and optimization for PostgreSQL/MySQL.
● Security protocols and measures for PostgreSQL/MySQL.
● Capacity planning and scalability for both systems.
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 Summary
We are looking for an experienced SRE / DevOps Engineer with strong expertise in production support, site reliability engineering, cloud infrastructure, automation, and monitoring. The candidate should have experience maintaining highly available systems, troubleshooting production issues, and improving infrastructure reliability and performance.
Mandatory Skills
- Site Reliability Engineering (SRE)
- DevOps Engineering
- Production Support
- Linux Administration
- Cloud Infrastructure (AWS / Azure / GCP)
- Kubernetes and Docker
- CI/CD pipelines
- Monitoring and Observability
- Scripting using Python / Shell
- Incident Management and Root Cause Analysis
Key Responsibilities
- Monitor and maintain the availability, reliability, and performance of applications and infrastructure.
- Handle production incidents, troubleshoot issues, and perform root cause analysis.
- Manage and automate infrastructure deployment and operational tasks.
- Work with CI/CD pipelines and container orchestration platforms.
- Implement monitoring, alerting, and observability solutions.
- Collaborate with development and operations teams to improve system reliability.
- Support cloud infrastructure, Linux environments, and production deployments.
- Identify recurring issues and implement preventive measures to reduce downtime.
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.
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)
Site Reliability Engineer (SRE) / Production Support Engineer
Experience: 5–10 Years
Location: Hyderabad
Work Mode: Face-to-Face Drive
Shift: Rotational Shifts
Job Description
Looking for an experienced SRE / Production Support Engineer with strong experience in application and production support, incident management, monitoring, troubleshooting, and cloud operations.
Key Skills
Production Support, Incident Management, Splunk, APM, SLI/SLO, Cloud, Kubernetes, Docker, Terraform, Linux/Windows Administration, Shell Scripting and Python.
Good understanding of production deployments, batch monitoring, network/load balancing, and troubleshooting is required.
Candidates from SRE, Production Support, Application Support, Cloud Operations, or DevOps backgrounds are preferred.
We are looking for a Backend Engineer (SDE 2) to build scalable backend systems for EV charging infrastructure and energy management platforms. The role focuses on developing high-performance APIs, event-driven systems, and data pipelines that process EV telemetry, charging sessions, and energy analytics.
What You'll Own
- Design and develop scalable backend services and RESTful/WebSocket APIs.
- Build microservices using Go.
- Design and optimize databases for high-volume telemetry and charging-session data.
- Build event-driven systems and data pipelines using Kafka or similar messaging systems.
- Work on real-time and batch processing workflows for telemetry, energy metrics, and analytics.
- Improve application reliability, performance, monitoring, and observability.
- Deploy and operate services using Docker and Kubernetes.
- Participate in system design, architecture discussions, code reviews, testing, and technical documentation.
- Mentor and support junior engineers when required.
Required Qualifications
- 3 - 5+ years of backend development experience building scalable APIs and microservices.
- Strong proficiency in Golang.
- Strong understanding of PostgreSQL, MongoDB, or other relational/NoSQL databases.
- Experience with query optimization, indexing, schema design, partitioning, or replication.
- Experience building event-driven or distributed systems using Kafka or similar messaging systems.
- Familiarity with GCP or other cloud platforms.
- Experience with Docker and Kubernetes.
- Experience with monitoring and observability tools such as Grafana, Kibana, or ELK.
- Strong understanding of system design, scalability, and performance optimization.
- Experience writing clean, maintainable, testable code with unit and integration tests.
Nice to Have
- Experience working with EV charging, energy management, mobility, or IoT platforms.
- Experience processing high-volume telemetry or time-series data.
- Experience with real-time data processing and analytics pipelines.
- Experience with WebSockets or other real-time communication protocols.
- Experience with CI/CD and production infrastructure.
- Experience working with distributed systems at scale.
Why Join Us
- Build backend infrastructure powering EV charging and energy platforms.
- Work on distributed systems, real-time data, and high-volume telemetry.
- Solve challenging problems around scalability, reliability, and performance.
- Take meaningful ownership of production systems and technical decisions.
Build production-grade cloud infrastructure that powers enterprise applications with cutting-edge DevOps practices.
What you'll do:
- Design CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI)
- Containerize apps with Docker, deploy on Kubernetes clusters
- Manage infrastructure as code (Terraform, CloudFormation)
- Set up monitoring (Prometheus, Grafana, ELK Stack)
- Cloud migrations (AWS EC2, EKS, RDS → GCP equivalent)
- Optimize costs and performance for live production systems
What we need:
- Basic Python/Bash scripting
- Docker basics, Git workflows
- Cloud exposure (AWS/GCP/Azure free tier projects)
- Problem-solving mindset, eagerness to learn
Real impact:
- Deploy apps used by 1000+ daily users
- Work with senior DevOps engineers on client deliverables
- Build portfolio for FAANG-level interviews
Job Summary
We are looking for an experienced SRE DevOps Engineer to manage production infrastructure, improve system reliability, automate operational tasks, and support scalable cloud environments. The candidate should have strong experience in Site Reliability Engineering (SRE), DevOps tools, monitoring, incident management, and automation.
Key Responsibilities
- Monitor application and infrastructure performance to ensure high availability and reliability.
- Manage production incidents, troubleshooting, root cause analysis, and resolution.
- Implement and maintain CI/CD pipelines for automated deployments.
- Manage cloud infrastructure on AWS, Azure, or GCP.
- Automate repetitive operational tasks using Python, Shell, or Bash scripting.
- Work with Docker, Kubernetes, and container orchestration technologies.
- Implement monitoring and alerting using tools such as Prometheus, Grafana, Splunk, or Datadog.
- Manage infrastructure as code using Terraform or Ansible.
- Define and monitor SLIs, SLOs, and SLAs.
- Collaborate with development, infrastructure, and support teams to improve system reliability.
- Participate in on-call support and disaster recovery activities.
Mandatory Skills
- Site Reliability Engineering (SRE)
- DevOps and Production Support
- Linux/Unix Administration
- Cloud Platforms: AWS, Azure, or GCP
- CI/CD Tools: Jenkins, GitLab CI, or GitHub Actions
- Scripting: Python, Shell, or Bash
- Docker and Kubernetes
- Monitoring and Observability: Splunk, Grafana, Prometheus, or Datadog
- Incident Management and Root Cause Analysis











