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Lead Site Reliability Engineer

Thales
Bengaluru, IND
Full-time
Lead · 7+ years experience
Hybrid
Discovered 2 weeks ago
ansibledockerelasticsearchgitgrafanajenkins

Full Job Posting

Responsibilities

  • Apply SRE core tenets of measurement (SLI/SLO/SLA), eliminate toil, and reliability modeling
  • Enable and educate development teams on industry best practice design patterns, ways of working and operational knowledge to ensure platform continuity
  • Develop and architect solutions to infrastructure and operational aspects of new products and feature sets
  • Assist with go/no go preplanning, verification/validation, and review of existing and new product/services
  • Proactively analyze data and test the integrity of network/systems to ensure production applications and services are operating optimally
  • Work within development teams to troubleshoot and resolve business affecting issues
  • Escalations, incident response, RCA, and blameless postmortem
  • Participate in on-call rotation

Qualifications

  • At least 7+ years of professional experience within a cloud/web/CDN scale infrastructure
  • Expert Linux troubleshooting in production: isolate CPU vs memory vs IO vs network bottlenecks quickly; hands-on with top/htop, vmstat, iostat, sar, pidstat, ss, lsof, dmesg, and journald/systemd.
  • Strong networking fundamentals + practical debugging: deep understanding of TCP/UDP and routing basics; can prove issues using curl, dig, mtr/traceroute, nc, and tcpdump.
  • DNS & HTTP(S) clarity: understands resolver vs authoritative, TTL/caching, SERVFAIL/NXDOMAIN patterns; knows HTTP 502/503/504 meaning and common LB/proxy failure modes.
  • TLS/SSL proficiency: understands certificate chain, expiry, SNI mismatch, handshake failures; can validate quickly using openssl s_client and interpret output.
  • Production mindset: prioritizes mitigation first (rollback/disable/route around), then RCA; writes clear runbooks and automates repeat fixes to reduce toil.
  • Expert knowledge of Linux systems, network programming and protocols TCP, UDP, DNS, TLS/SSL, HTTP
  • Experience with BGP and Anycast routing is a plus
  • Experience with DevOps principles and concepts such as Infrastructure as Code (Ansible/Saltstack), CI/CD (Gitlab, Jenkins, Git), monitoring and visualization ( Prometheus, Grafana )
  • Experience with big data technologies such as NoSQL/RDBMS, Redis, ElasticSearch, Kafka
  • Experience with containers and container management (Docker, Kubernetes)
  • Experience analyzing and building data telemetry, modeling, pipelines, UI visualization
  • Experience in developing software, troubleshooting, and monitoring large scale distributed systems
  • Implement software engineering best practices/standards and software development life cycle
  • Working knowledge and experience of Agile software development methodologies
  • A strong team player who is accountable towards business urgency
  • Ability to stay organized in a multi-tasking environment
  • Self-starter personality
  • At Thales, we’re committed to fostering a workplace where respect, trust, collaboration, and passion drive everything we do. Here, you’ll feel empowered to bring your best self, thrive in a supportive culture, and love the work you do. Join us, and be part of a team reimagining technology to create solutions that truly make a difference – for a safer, greener, and more inclusive world.

Preferred Qualifications

  • Experience with BGP and Anycast routing is a plus

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