Hire Me
Available for opportunities

YasinduDissanayake

DevOps Engineer with 2+ years building resilient cloud infrastructure, automating CI/CD pipelines, and orchestrating containerised workloads. GSoC Contributor at Apache Software Foundation. CKA Certified.

7 Repos 9 Followers 27+ PRs Merged Colombo, Sri Lanka
0
Years Experience
0
Open Source PRs Merged
0
Build Time Reduction
0
CI Speed Improvement
// what i bring

Why Work With Me

For Companies & Teams

I design and maintain infrastructure that scales with your business, reducing downtime and engineering toil so your team ships faster.

  • Kubernetes cluster design & operations
  • CI/CD pipeline automation & migration
  • Hybrid cloud & on-premise infra management
  • Security hardening & secrets management
For Recruiters

2+ years of hands-on DevOps experience, CKA certified, GSoC contributor to Apache Foundation. A proven track record of impactful infrastructure work.

  • Certified Kubernetes Administrator (CKA)
  • 27+ merged open source PRs
  • Google Summer of Code at Apache Foundation
  • HashiCorp Terraform Certified
For Clients (Freelance)

From server setup to automated deployments, I offer end-to-end DevOps and web infrastructure services with fast turnaround and clear communication.

  • Server setup & cloud migrations
  • Docker & CI/CD pipeline setup
  • SSL, DNS, monitoring configuration
  • WordPress & web infrastructure
// who am i

About Me

Building Reliable Infrastructure at Scale

I'm a DevOps & Platform Engineer based in Colombo, Sri Lanka. Passionate about automating everything and building highly available systems. Selected as a Google Summer of Code contributor to the Apache Software Foundation.

I thrive at the intersection of software engineering and operations, turning complex infrastructure challenges into elegant, automated solutions. Strong advocate for GitOps, Platform Engineering, and cloud-native architectures.

Colombo, Sri Lanka
github.com/mryashlk
linkedin.com/in/yasindu-dissanayake
yasinduu.medium.com
yasindu@devops ~ profile.yaml
name: Yasindu Dissanayake
role: DevOps / Platform Engineer
location: Colombo, Sri Lanka 🇱🇰
gsoc: Apache Foundation 2025
cka: certified: true
 
expertise:
  - Kubernetes Orchestration
  - CI/CD Pipeline Automation
  - Platform Engineering
  - Hybrid Cloud Infrastructure
 
hireable: true
available: full_time | contract | remote
// open source activity

GitHub Activity

Yasindu Dissanayake GitHub avatar
Yasindu Dissanayake
DevOps Techie ☁️
7 repos 9 followers 1 following Ceylon
GitHub stats for mryashlk

Contribution Activity

GitHub contribution activity graph

Pull Requests

View Profile
// work history

Experience

HurryPay
June 2025 – Present
DevOps Engineer
  • Manage and automate hybrid cloud infrastructure across Alibaba Cloud and on-premise Linux servers ensuring high availability for dev and staging environments.
  • Implemented SSO with Authentik and ZTNA with Twingate, replacing legacy VPN infrastructure.
  • Deployed GitLab Runners with caching and parallel execution, reducing build times by 40% across 5+ engineers.
  • Migrated Jenkins pipelines to GitLab CI/CD, cutting maintenance overhead by 50%.
  • Developed Bash automation for scheduled DB backups and repository sync to MinIO object storage.
  • Configured Nginx and Traefik reverse proxies with automated Let's Encrypt SSL renewals.
Alibaba CloudGitLab CI/CDAuthentikTwingateNginxTraefikMinIOBash
The Apache Software Foundation
June – Sept 2025
GSoC Student Developer
  • Selected for Google Summer of Code to modernise build automation and release pipelines for Apache Airavata using GitHub Actions.
  • Automated container image builds, testing, and deployment to container registries.
  • Refactored Ansible playbooks, reducing environment setup complexity by 35%.
  • Implemented idempotent infrastructure automation with comprehensive documentation.
GitHub ActionsAnsibleDockerApache AiravataGSoC 2025
Geodd
Dec 2024 – June 2025
Intern DevOps / Infrastructure Engineer
  • Kubernetes cluster management using Helm and Cilium CNI for advanced networking.
  • Deployed Proxmox VE on bare-metal; provisioned servers via Canonical MAAS across Ubuntu and Debian.
  • Data center operations: networking, hardware maintenance, incident response with ISPs.
  • Automated SSL issuance with Terraform + Cloudflare DNS-01 challenge validation.
  • Built Prometheus and Grafana dashboards for proactive incident detection.
  • Deployed External Secrets Operator (ESO) + HashiCorp Vault for secure secrets management.
KubernetesHelmCiliumProxmoxTerraformPrometheusGrafanaHashiCorp Vault
// technical stack

Skills & Technologies

Containers & Orchestration
Core expertise
Kubernetes Docker Helm K3s Cilium CNI Multi-Arch Builds
CI/CD & Automation
Pipeline engineering
GitLab CI/CD GitHub Actions Jenkins Argo CD
Infrastructure as Code
Provision & configure
Terraform Ansible YAML
Cloud Platforms
Multi-cloud
AWS EC2 / S3 / IAM / VPC Alibaba Cloud
Monitoring & Observability
Metrics, logs & alerting
Prometheus Grafana Loki Performance Analysis
Security & Networking
Zero trust & SSL/TLS
HashiCorp Vault SSO / ZTNA SSL/TLS Nginx Traefik
Programming & Scripting
Automation & tooling
Bash Python Go Shell Scripting
OS & Databases
Systems & data
Linux Ubuntu / Debian MongoDB PostgreSQL MySQL
// community

Open Source

Core ContributorMay 2024 – Present
MetaCall
Polyglot Runtime: Infrastructure Contributor

Contributing to MetaCall's CI/CD infrastructure and multi-architecture build systems. Focused on build performance, cross-platform compatibility, and developer experience for this polyglot runtime.

27+
PRs Merged
60%
CI Time Saved
3
Architectures
60% CI Build Time ReductionCaching optimisation, workflow concurrency improvements, and parallel execution strategies.
Multi-Architecture Docker BuildsEnabled AMD64, ARM64, and RISC-V support, expanding hardware compatibility and deployment flexibility.
27+ Pull Requests MergedFeatures, bug fixes, and infrastructure improvements contributing to project stability and growth.
// infrastructure projects

Projects

Live
cloudflow ~ kubectl get nodes
control-plane  Ready  master  v1.33
worker-node-01  Ready  worker  v1.33
worker-node-02  Ready  worker  v1.33
argocd app list | grep Synced | wc -l
6 # 6/6 apps healthy

CloudFlow Platform

Production-grade multi-node Kubernetes cluster built on RKE2 with GitOps-driven deployments via ArgoCD. Features Longhorn distributed block storage across 92Gi, Calico VXLANCrossSubnet CNI, Traefik ingress with automated TLS, and cert-manager for certificate lifecycle management. Hosts 6 production applications.

RKE2ArgoCDLonghornCalicoTraefikcert-managerHelm
3
Nodes
6
Apps Deployed
92Gi
Distributed Storage
Live
secureauth ~ sso status
provider: Authentik v2026.2
protocols: OIDC · SAML · LDAP
backend: PostgreSQL (K8s PVC)
status: all flows healthy

SecureAuth Gateway

Enterprise-grade identity and access management platform deployed natively on Kubernetes. Implements OIDC, SAML 2.0, and LDAP to provide unified SSO across all internal applications. Backed by a PostgreSQL database with persistent volumes, fully integrated with cluster RBAC and Traefik forward auth middleware.

AuthentikOIDCSAML 2.0SSOKubernetesPostgreSQL
3
Auth Protocols
SSO
Unified Login
K8s
Native Deploy
Live

ObservaStack

Full-stack observability platform deployed across a production Kubernetes cluster. Prometheus scrapes metrics from 9 jobs with node exporters running as DaemonSets on all nodes. Grafana provides interactive dashboards for cluster health, app performance, and resource utilisation with 30-day retention and Alertmanager integration.

PrometheusGrafanaDaemonSetKubernetesAlertmanagerNode Exporter
observa ~ prometheus status
scrape_jobs: 9 # all targets up
node_exporter: DaemonSet (3/3 Ready)
retention: 30d · 15GB allocated
grafana: 4 dashboards · 12 panels
alerting: Alertmanager configured
curl -s :9090/api/v1/targets | jq '.status'
"success"
9
Scrape Jobs
4
Dashboards
30d
Retention
// writing

Latest Articles

// freelance

Freelance Services

Yasindu Fiverr profile
Yasindu Dissanayake
@wpdesigner12
5-Star Seller
View on Fiverr
DevOps & Cloud Infrastructure Setup

Server provisioning, Docker setup, CI/CD pipelines, SSL configuration, reverse proxy setup, and monitoring dashboards. Fast delivery, production-ready.

WordPress & Web Infrastructure

WordPress site setup, optimisation, hosting configuration, and performance tuning. Full web stack deployment on VPS, cloud, or shared hosting.

Linux Server Administration

Ubuntu/Debian server hardening, firewall setup, automated backups, SSH management, and ongoing server maintenance for individuals and businesses.

Client Reviews

// credentials

Certifications

Certified Kubernetes Administrator (CKA)
Cloud Native Computing Foundation
Earned
AWS Solutions Architect Associate
Amazon Web Services
In Progress
GitHub Actions Certification
GitHub
Earned
AWS Cloud Quest: Cloud Practitioner
Amazon Web Services
Earned
HashiCorp Certified: Terraform Associate
HashiCorp (via KodeKloud)
Earned
// academic

Education

Bachelor of Science (Honours) in Computer Science
University of Bedfordshire, Delivered via SLIIT, Sri Lanka
Oct 2023 – Oct 2026
Operating SystemsComputer NetworksCloud ComputingDistributed Service Architecture
// get in touch

Contact

Let's Build Something Together

Whether you're looking for a DevOps engineer to streamline infrastructure, automate pipelines, architect cloud-native solutions, or need freelance DevOps help, I'd love to connect.

terminal — bash
kubectl get pods -n opportunities
 
NAME                 READY  STATUS
devops-engineer      1/1    Running
platform-engineer    1/1    Running
infra-engineer       1/1    Running
 
./contact.sh --via email
 
Message received successfully
Response time: < 24 hours
Modes: remote | on-site | hybrid