Williams Mishael
Mentor
(9 reviews)
US$15.00
For every 15 mins
26
Sessions/Jobs
ABOUT ME
Senior Software Engineer with 8+ years experience
Senior Software Engineer with 8+ years experience
I am a Machine Learning/DevOps engineer with great experience building reliable and highly available platforms that scale and ensures uptime needed for customer satisfaction.
I am knowledgeable of the CAP theorem, PECELC theorem, advanced systems design, data partitioning, application and infrastructure level monitoring and improving latency of requests. One of my proudest achievements was improving the uptime of an infrastructure from 79% to 99.99%.
I am skilled in kubernetes, python, terraform, Jenkins, AWS, GCP, ansible, docker and always apply best practices like preventing escalating privileges, scanning images before deploy, using secrets correctly. I am also a certified kubernetes application developer.
I am also a Senior Full stack developer, I have developed multiple apis with TypeScript and Nestjs. I have built web applications with ReactJs and mobile applications with Flutter and React Native.
Edinburgh (+01:00)
Joined January 2023
EXPERTISE
10 years experience
6 years experience
6 years experience
8 years experience
4 years experience
8 years experience
8 years experience
REVIEWS FROM CLIENTS
(9 reviews)
Reid
September 2023
Great assessment of the problem requiring a custom Calico network policy rule.
Isak Burton
June 2023
Williams gave me excellent help!
Prasenjit Paul
May 2023
Williams started a call for free and experimented with a lot of things to resolve my ongoing kubernetes issue that I got after kube 1.22 update. He was patient to understand the issue and to debug it, despite the system being complicated.
Finally the job was done and I will definitely hire him again and also recommend him for devops related work. Thank you Williams.
Adam
May 2023
Thank you for all your help!
Linda Weber
April 2023
I hired Williams for a freelance job. Due to time constraints on my side I was not able to give proper instructions, so I didn't think the job could be completed. However, Williams went the extra mile to get familiar with the project before implementing everything perfectly. The work he did really exceeded my expectations. I would highly recommend hiring him! I look forward to continue the work with him :)
Richard Cheng
March 2023
Very nice session and Willams was very patient to solve my problems. Highly recommend!
EMPLOYMENTS
AWS Senior DevOps Engineer
The Weather Company, An IBM business
2023-09-01-Present
- Directed the design and implementation of scalable cloud infrastructure on AWS and GCP for a high-traffic platform, serving over ...
- Directed the design and implementation of scalable cloud infrastructure on AWS and GCP for a high-traffic platform, serving over 1 million monthly users with 99.99% uptime.
- Implemented infrastructure-as-code practices using Terraform and ArgoCD, reducing deploymenttimes by over 50% and enhancing team productivity.
- Pioneered the migration from EC2 to AWS EKS, as one of the first Devops Engineer on the team, cutting infrastructure costs by 40%, boosting deployment speed by 35%, and enhancing systemresilience by 50%
- Authored and maintained 200+ pages of technical documentation on Notion, significantly improving the onboarding process for new team members and external collaborators.
- Orchestrated the deployment of a new Jenkins server, enhancing CI/CD pipelines with Kubernetes pods; achieved a 50% increase in build process efficiency for over 30+ activedevelopment teams.
- Integrated AWS Secret Manager, streamlining secret management for 100+ applications; improved security posture by 40% through robust IAM roles and security group configurations.
- Led a critical migration project, transferring 20+ CI builds to the new Jenkins platform within a tight 1-month deadline, ensuring zero disruption to ongoing development activities.
- Spearheaded the introduction of Docker in Docker (DIND) servers for Jenkins builds, reducing build times by 25% and enhancing the pipeline's reliability for containerized applications.
- Initiated and successfully completed the migration of Helm charts to AWS ECR, facilitating a smoother deployment process and improving deployment efficiency by 30%.
- Established a comprehensive monitoring solution using Prometheus and Grafana for real-time visibility into the health and performance of Linux servers and applications, enabling proactiveissue resolution and a 99.9% uptime
Python
Bash
Jenkins
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Python
Bash
Jenkins
Terraform
Grafana
Prometheus
Helm
AWS EKS
Docker & Kubernetes
Argo CD
Notion
AWS
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Lead DevOps Engineer
Skuad Pte
2022-06-01-Present
● Setting up GitOps on the infrastructure using Argocd
● Migrating imperative codes to declarative using terraform as
infrastructure-as-a...
● Setting up GitOps on the infrastructure using Argocd
● Migrating imperative codes to declarative using terraform as
infrastructure-as-a-service
● Creating helm charts to manage releases of applications
● Managing deployment of new services
● Implementing high availability and disaster recovery
● Setting up Sonarqube for code quality checks, integrating with LDAP and
exporting metrics to prometheus
● Setting up Thanos for long term storage of prometheus metrics
● Creating kubernetes workloads, container restarts, node pool auto-upgrade
and VMs alerts
● Write post-mortems and RCA after every incident to ensure better crisis
management
● Writing good code documentation to reduce knowledge gaps in the team
● Optimising Docker image build size
● Migrating domain nameservers from Godaddy to Cloudflare and integrating
WAF on domain
● Code reviews on team gitlab organization
LDAP
Docker
Google Cloud Platform
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LDAP
Docker
Google Cloud Platform
Kubernetes
GraphQL
Terraform
Grafana
Prometheus
CI/CD
Helm
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Devops Engineer
AnyBlock Analytics
2021-04-01-2022-06-01
● Working with team aiming at achieving an uptime of 99.99% (four nines) as defined in SLA
● Migrating imperative codes to declarative us...
● Working with team aiming at achieving an uptime of 99.99% (four nines) as defined in SLA
● Migrating imperative codes to declarative using terraform as infrastructure-as-a-service
● Created a python script to monitor up-time of blockchain nodes
● Containerized some from-source scripts of some node partners with docker
● Created load-balancer endpoints for some blockchain nodes in order to
increase the reliability
● Managed deployment of nodes in different availability zones and regions to increase availability
● Setup dashboards to monitor more metrics to export to user-facing nodejs dashboard
● Documented common errors faced by developers and quick fixes while running pocket nodes in order to allow for ease of usage
● Write post-mortems after every incident to ensure better crisis management
● Write good code documentation to reduce knowledge gaps in the team
● Attended meetings with node partners to ensure ease of communication
● Setup SMTP alerting and discord bots in times to notify team members as an
alerting measure in times of emergency
● Did code reviews on team github organization
Python
Node.js
Ansible
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Python
Node.js
Ansible
Blockchain
Terraform
CI/CD
AWS
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PROJECTS