{"id":2792426,"url":"https://alion.io/job/persistent-systems-senior-clickhouse-database-engineer","title":"Senior ClickHouse Database Engineer","company":{"id":59479,"name":"Persistent Systems","domain":"persistent.com","url":"https://alion.io/company/persistent-systems","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Zwayam","truth_index":{"grade":"A","score":90,"open_postings":89,"ghost_share":0,"stale_share":0.382,"repost_share":0,"time_to_fill_p50_days":47,"computed_at":"2026-10-22T06:10:10Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Pune, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":21000,"max_usd":42000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":59},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon S3","optional":false},{"name":"Apache Kafka","optional":false},{"name":"Bash","optional":false},{"name":"cert-manager","optional":false},{"name":"CI/CD","optional":false},{"name":"ClickHouse","optional":false},{"name":"Configuration Management","optional":false},{"name":"Git","optional":false},{"name":"Grafana","optional":false},{"name":"Helm","optional":false},{"name":"Incident Management","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"Loki","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Prometheus","optional":false},{"name":"SQL","optional":false},{"name":"Terraform","optional":false},{"name":"ZooKeeper","optional":false}],"status":"live","first_seen_at":"2026-09-15T09:24:00Z","employer_posted_date":"2026-10-21","last_verified_at":"2026-10-22T12:19:56Z","board_verified":true,"closed_at":null,"days_open":37,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":36},"description":"About Persistent\nWe are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what's next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.\nOur disruptor's mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We reported $1,654.4M FY26 revenue with 17.4% Y-o-Y growth. We have delivered 24 sequential quarters of growth with $436.0M in Q4 FY26 revenue, up 3.2% Q-o-Q and 16.2% Y-o-Y growth. Our 27,500+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been recognized as the Fastest Growing IT Services Brand Globally in the 2026 Brand Finance IT Services 25 Report. We named a Leader in the Everest Group Private Equity (PE) Services PEAK Matrix Assessment 2026 and Software Product Engineering PEAK Matrix Assessment 2026.\nAbout Position:\nWe are looking for a highly experienced Senior ClickHouse Database Engineer to own and manage the ClickHouse analytics database platform that powers our real-time network analytics products. This platform serves as the primary data store for analytics counters, KPI aggregations, reporting workloads, and interactive dashboards operating at enterprise scale. The ideal candidate will possess deep expertise in ClickHouse internals, database administration, Kubernetes-based deployments, Kafka integration, performance tuning, replication, security, and production troubleshooting. You will be responsible for the complete lifecycle management of the ClickHouse platform, ensuring scalability, reliability, high availability, and operational excellence across geo-distributed environments.\nRole: Senior ClickHouse Database Engineer\nLocation: Pune\nExperience: 10 to 15 Years\nJob Type: Full-Time Employment\nWhat You'll Do:\nAdminister and manage enterprise-scale ClickHouse clusters across production and non-production environments.\nPlan and execute ClickHouse version upgrades, compatibility assessments, rollback strategies, and post-upgrade validations.\nDesign and maintain cluster topologies, shard configurations, replica management, and node allocation strategies.\nLead ZooKeeper to ClickHouse Keeper migration initiatives and ongoing Keeper administration.\nConfigure and manage backup and recovery solutions using S3-compatible storage platforms.\nDevelop and execute disaster recovery, failover, and business continuity strategies.\nImplement and maintain ClickHouse security controls including TLS, RBAC, network isolation, and user-role management.\nDesign, optimize, and evolve materialized view architectures using AggregatingMergeTree and related engines.\nManage geo-redundant WAN replication across distributed deployments and availability zones.\nPerform database performance tuning and workload optimization for large-scale analytical queries.\nMonitor cluster health, replication status, storage utilization, and operational KPIs.\nBuild and maintain observability dashboards using Grafana and Prometheus.\nTroubleshoot production issues using ClickHouse system tables and diagnostic tools.\nManage maintenance activities including part merges, TTL policies, and storage lifecycle operations.\nSupport Kafka-to-ClickHouse ingestion pipelines and resolve end-to-end data flow issues.\nInvestigate consumer lag, ingestion bottlenecks, serialization failures, and pipeline performance issues.\nDevelop automation scripts for maintenance, health monitoring, backups, and operational workflows.\nCollaborate with Data Engineering, Platform Engineering, DevOps, Infrastructure, and Security teams.\nParticipate in architecture reviews, production readiness assessments, and capacity planning exercises.\nMentor junior engineers and contribute to operational runbooks, documentation, and best practices.\nExpertise You'll Bring:\n10-15 years of overall database, infrastructure, or platform engineering experience.\nExtensive hands-on experience administering ClickHouse in large-scale production environments.\nDeep understanding of ClickHouse internals and MergeTree storage engines including ReplicatedMergeTree, AggregatingMergeTree, SummingMergeTree.\nExpertise in columnar storage architecture, part lifecycle management, and merge processing.\nExperience managing ClickHouse clusters with multiple shards and replicas.\nStrong understanding of distributed DDL operations and cluster configuration management.\nProven experience performing ClickHouse upgrades, migrations, rollback planning, and version lifecycle management.\nExperience implementing backup, restore, and disaster recovery solutions for ClickHouse clusters.\nStrong proficiency in ClickHouse SQL, query optimization, execution plan analysis, and performance tuning.\nExperience working with system tables such as system.parts, system.merges, system.query_log, system.replication_queue, system.errors.\nExperience managing ClickHouse Keeper and ZooKeeper environments.\nStrong understanding of ClickHouse security architecture, access control, encryption, and auditing.\nStrong hands-on experience managing stateful workloads on Kubernetes.\nExpertise with StatefulSets, Persistent Volumes, storage classes, and database workloads.\nExperience with Longhorn, local-path storage, and storage migration strategies.\nStrong experience deploying and maintaining applications using Helm.\nKnowledge of Helm chart customization, upgrades, and migration activities.\nExperience with TLS certificate lifecycle management using cert-manager or equivalent platforms.\nStrong knowledge of infrastructure automation and operational best practices.\nStrong understanding of Apache Kafka architecture and operations.\nExperience with topics, partitions, consumer groups, replication, and offset management.\nAbility to troubleshoot Kafka-to-ClickHouse ingestion pipelines.\nExperience identifying and resolving Consumer lag issues, Schema compatibility problems, Deserialization failures, Dead-letter queue scenarios, Offset recovery situations.\nKnowledge of real-time data ingestion and event-driven analytics platforms.\nExperience correlating database bottlenecks with Kafka ingestion performance.\nHands-on experience with Prometheus and Grafana monitoring solutions.\nExperience building dashboards for replication lag, query latency, merge backlogs, and cluster health metrics.\nStrong troubleshooting and production incident management skills.\nFamiliarity with centralized logging solutions such as Loki, ELK, or equivalent platforms.\nAbility to perform root-cause analysis and implement preventive measures.\nStrong scripting experience using Bash and Shell scripting.\nExperience automating maintenance and operational workflows.\nWorking knowledge of Java for ClickHouse client integrations and upgrade assessments.\nFamiliarity with Git and source-code management practices.\nExperience working with CI/CD pipelines and Infrastructure-as-Code methodologies.\nExposure to Terraform and automation-driven deployment models.\nStrong analytical and problem-solving capabilities.\nExperience operating mission-critical production platforms.\nExcellent communication and stakeholder management skills.\nAbility to collaborate effectively with cross-functional teams.\nStrong mentoring and technical leadership abilities.\nProven experience driving operational excellence and platform reliability initiatives.\nBenefits:\nCompetitive salary and benefits package\nCulture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications\nOpportunity to work with cutting-edge technologies\nEmployee engagement initiatives such as project parties, flexible work hours, and Long Service awards\nAnnual health check-ups\nInsurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents\nValues-Driven, People-Centric & Inclusive Work Environment:\nPersistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.\nWe support hybrid work and flexible hours to fit diverse lifestyles.\nOur office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.\nIf you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment\nLet's unleash your full potential at Persistent -persistent.com/careers\n\"Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.\"","description_format":"text","description_chars":9216,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Flexible schedule","Growth opportunities","Hybrid work","Insurance coverage"],"hiring_locations":[{"name":"India","iso":"IN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Health Care","Information Technology","IT Outsourcing & Dedicated Teams"],"lifecycle":[{"event":"open","at":"2026-10-17T20:26:58Z"},{"event":"close","at":"2026-10-19T18:07:04Z"},{"event":"reopen","at":"2026-10-21T06:26:57Z"},{"event":"close","at":"2026-10-21T12:26:12Z"},{"event":"reopen","at":"2026-10-21T17:08:32Z"}],"visa":[],"liveness":{"score":61,"band":"ok","label":"Likely open","p_open":1,"p_active":0.808,"p_room":0.75,"age_days":36,"expected_fill_days":47,"reasons":["conf:1","velocity","win:late","comp:brand"],"computed_at":"2026-10-22T06:10:10Z"},"pay":null,"html_url":"https://alion.io/job/persistent-systems-senior-clickhouse-database-engineer","json_url":"https://alion.io/job/persistent-systems-senior-clickhouse-database-engineer.json","meta":{"generated_at":"2026-10-22T16:01:48Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":16118,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":59479},"rest":"https://alion.io/mcp/rest/get_company?id=59479"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpersistent-systems-senior-clickhouse-database-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fpersistent-systems-senior-clickhouse-database-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fpersistent-systems-senior-clickhouse-database-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/persistent-systems-senior-clickhouse-database-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpersistent-systems-senior-clickhouse-database-engineer"}]}