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Abhishek Singh

Open to work2 years experience

DevOps & SRE Engineer

Chennai, IndiaTarget Roles: Backend Engineer • Full-Stack Developer • Frontend Specialist

DevOps & SRE Engineer with 2.4 years of experience in cloud infrastructure, CI/CD, and reliability engineering.

GitHub

Standing Rank

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Skills & Technologies

46 skills
srereliability engineeringavailabilitylatencyperformancecapacity planningchaos engineeringdisaster recoveryawsec2eksrdss3lambdavpciamalbcloudwatchecrazureaksazure devopsterraformansiblecloudformationkubernetesopenshiftdockerhelmargocdjenkinsgithub actionsgitlab ci/cdgitopsprometheusgrafanaelk stackdatadogpagerdutytrivysonarqubepci-dsspythonbashpostgresqlredis

Work Experience

Associate Software Engineer DevOps & SRE

NPCI (National Payments Corporation of India)

Jul 2022 - Dec 2024 Chennai, India
  • Owned availability, latency, performance, and capacity planning for 100+ microservices processing 400M+ daily UPI transactions at 15,000+ TPS on AWS EKS – defined SLIs/SLOs and enforced reliability standards across 5 teams.
  • Drove chaos engineering practice – designed failure-mode tests, ran game days to validate reliability assumptions, and implemented self-healing remediation; engineered Kubernetes HPA/VPA, PDB, and automated rollback policies – sustained 99.9%+ uptime.
  • Built self-monitoring observability platform (Prometheus, Grafana, ELK, Datadog, PagerDuty) with SLI/SLO alerting; improved paging policies to ensure engineers are paged when it matters and not when it doesn't – reduced MTTR 45-35 mins; authored 15+ runbooks.
  • Used DevOps and GitOps practices to improve automation and enable self-service – implemented CI/CD pipelines (Jenkins, ArgoCD, GitHub Actions) with Terraform/Ansible IaC across 500+ instances; cut provisioning 3 days to 5 hours, eliminated 200+hrs/month toil.
  • Led DevSecOps controls (Trivy, SonarQube) remediating 12 critical + 33 high CVEs; enforced PCI-DSS compliance and zero privilege-escalation policies – zero violations across entire 2.4-year tenure.
  • Evolved SDLC practices for SRE best practices across 5 teams (30+ engineers); built Python (Boto3) automation saving 4+ hrs/day – drove 25% cloud cost reduction + 40% deployment failure reduction; mentored 2 engineers.

Freelance DevOps & SRE Consultant

Independent

Jan 2025 - Present Remote
  • Engaged as freelance DevOps consultant for a growth-stage startup – architected CI/CD pipelines (GitHub Actions, ArgoCD), managed AWS EKS workloads, and implemented Prometheus + Grafana observability stack.
  • Pursuing CKA and AWS SAA-C03; maintaining personal infrastructure lab replicating enterprise-level SRE patterns – GitOps, chaos simulations, game days, SLI/SLO dashboards.

Projects

DevOps Infrastructure Lab

EKSTerraformAnsibleOpenShiftArgoCDJenkinsPrometheusGrafanaPython
  • Provisioned production-grade EKS cluster via Terraform (auto-scaling 3-10 nodes) with ArgoCD GitOps Blue/Green rollouts, self-heal, chaos-aware game day design for high availability and disaster resilience.
  • Built Jenkins CI pipeline (ECR push, Helm auto-update) + Prometheus/Grafana SLI/SLO alerting for P95 latency and error rate >1% – reduced incident detection time by 60%.

Leaderboard Standings

Leaderboard Position Pending

Global test scores, peer standing percentiles, and algorithm leaderboard ranks are updated dynamically.

Assessment Highlights

Assessments Not Completed

Coding evaluations, system assessment results, and conceptual score badges will appear here after taking a test.

AI Collaboration Score

AI Collaboration Score Pending

Developer coding behavior, assistant cooperation, and AI pair-programming indicators are evaluated during live coding sessions.

Role Compatibility Profile

Role Compatibility Analysis Pending

Custom matching reports, candidate role compatibility percentiles, and core engineer strength profiles are processed once conceptual code screenings are complete.

Achievements

UPI Payment Flow Stabilization

Stabilized live UPI payment flow during peak traffic emergency response incident – prevented ~3% failure rate on 400M+ daily transactions.

PCI-DSS Compliance Record

Maintained zero PCI-DSS violations and zero privilege-escalation incidents across entire 2.4-year tenure – highest compliance record in team.

Cloud Cost and Deployment Failure Reduction

Delivered 25% cloud cost reduction + 40% deployment failure reduction – highest infra ROI in SRE team, FY2024.

About Details

Professional Bio

Site Reliability Engineer with 2.4 years owning availability, latency, performance, and capacity planning for mission-critical payment infrastructure. Proven track record of zero PCI-DSS violations, 99.9%+ uptime, and 25% cloud cost reduction.

B.Tech - CSE

UPES, Dehradun (2017 - 2021)

Languages: English, Hindi