Valentin Stoican, Developer in Amsterdam, Netherlands
Valentin is available for hire
Hire Valentin

Valentin Stoican

Verified Expert  in Engineering

Software Developer

Amsterdam, Netherlands
Toptal Member Since
September 19, 2019

Valentin has a demonstrated rich and diverse experience spanning enterprise business applications, DevOps, mobile development, Agile transformation, and application lifecycle management. He is specialised in containers orchestrations, CI/CD and software development. He has a good work ethic which is highly appreciated by every client who hired him.


Woven by Toyota, Inc - Stargate
Kubernetes, DevOps, Kubernetes Operations (kOps)
Oyu Tolgoi LLC
Kubernetes, DevOps, Azure, Docker, GitLab, GitLab CI/CD, Machine Learning
Wash - Main
Kubernetes, Amazon EKS, Helm, Terraform, Amazon RDS, AWS Global Accelerator...




Preferred Environment

Kubernetes, Continuous Delivery (CD), Continuous Integration (CI), Git, Cloud, Linux

The most amazing...

...thing I've created was the Docker Birthday #3 app infrastructure which was capable of handling thousands of requests and testing more than 10,000 containers.

Work Experience

Kubernetes Platform Engineer via Toptal

2023 - 2023
Woven by Toyota, Inc - Stargate
  • Led and coordinated L5 (former Lyft's self-driving car division) migration to a new platform.
  • Contributed to various integrations and customizations of the developer portal based on Backstage from Spotify.
  • Worked closely with the SRE team to define customer user journeys and, subsequently, custom metrics for measuring and monitoring the journeys.
  • Managed to customize GitHub workflows and extract information in order to provide customers with more in-depth information about their pipelines and the efficiency of the Terraform modules and cloud providers' API response times.
  • Collaborated with the security team and managed to identify security issues present with some or all cloud providers and implemented additional controls and configurations to mitigate them.
Technologies: Kubernetes, DevOps, Kubernetes Operations (kOps)

Kubernetes DevOps Engineer via Toptal

2020 - 2023
Oyu Tolgoi LLC
  • Contributed to GitLab deployment. By successfully implementing GitLab, I introduced a version control system, fostering seamless collaboration and enabling efficient code management.
  • Integrated Harbor seamlessly into the infrastructure, empowering secure and scalable container management for multiple projects.
  • Worked on CI/CD pipelines. I architected robust CI/CD pipelines, leveraging industry best practices and cutting-edge tools. This automation accelerated development processes, minimized errors, and enhanced the overall quality of deliverables.
  • Contributed to Tanzu Kubernetes deployment. I successfully deployed Tanzu Kubernetes, leveraging its power to scale and orchestrate applications effectively. This achievement laid the foundation for scalable and resilient deployments.
  • Integrated Snyk into development workflows, enhancing security practices by identifying and mitigating vulnerabilities in the codebase.
  • Introduced a centralized secrets management platform, providing a secure and auditable solution for sensitive information. HashiCorp Vault sits in the center of the infrastructure, serving secrets and integrating with most of the applications.
  • Implemented ArgoCD to facilitate GitOps practices, enabling declarative and automated deployments, further enhancing efficiency and reliability.
Technologies: Kubernetes, DevOps, Azure, Docker, GitLab, GitLab CI/CD, Machine Learning

DevOps and Kubernetes Support

2022 - 2022
Wash - Main
  • Set up a completely new AWS environment for deploying the main web application, reporting tools, notifications server, etc.
  • Implemented a new solution to assign custom MAC addresses to Pod to be able to license the main web application. The solution uses Multus drivers to create virtual VLANs.
  • Reverse-engineered deployments in the old Kubernetes cluster and created Helm charts which are now deployed to the new clusters programmatically.
Technologies: Kubernetes, Amazon EKS, Helm, Terraform, Amazon RDS, AWS Global Accelerator, Amazon EC2, Amazon Web Services (AWS), AWS NAT Gateway

DevOps Engineer

2021 - 2022
Asset Panda LLC - Main
  • Designed new AWS architecture, which was reviewed and validated by AWS solution architects.
  • Deployed three new environments using Terraform and Terragrunt: Development, Production, and DR.
  • Set up applications repository and deployment pipelines using Helmfile, AWS Codebuild and CircleCI.
  • Designed and implemented a platform that had no downtime nor an incident in eight months' time. This was a major improvement considering that the previous platform went down every other week.
Technologies: Kubernetes, Amazon Web Services (AWS), Amazon EKS, GitHub, Amazon RDS, AWS Global Accelerator, Terraform, Terragrunt, GitHub Actions, DevOps, Amazon Firewall, Amazon EC2, AWS DevOps, AWS NAT Gateway

Kubernetes Expert

2019 - 2020
Capgemini (McDonalds Account)
  • Vetted all deployments and changes before going to production as the Kubernetes expert and ensured all platforms were stable.
  • Deployed all Kubernetes clusters in AWS using kops.
  • Delivered projects including Sync certificates using S3 bucket, ConfigMaps and sidecar containers, Calico IPAM blocks cleaning, zero downtime Kubernetes upgrade, and Newrelic deployment using Terraform and Helm.
Technologies: Amazon Web Services (AWS), Helm, Terraform, Continuous Delivery (CD), Continuous Integration (CI), Docker, Kubernetes, DevOps, Amazon EC2, AWS NAT Gateway

DevOps Architect and Engineer

2018 - 2019
  • Drafted a new DevOps landscape taking into consideration business, compliance, security, and operational requirements. The new architecture brings all new projects promoted by CNCF. Rancher orchestrated Kubernetes clusters running microservices.
  • Streamlined CI/CD pipelines, defined the roles and responsibilities, and provided best practices guidelines.
  • Automated and secured deployments performed using Ansible and Vault.
  • Implemented a single sign-on solution ADFS integrated using Keycloak.
  • Designed the monitoring of microservices and alerting using Prometheus and Grafana.
  • Based the log aggregation solution on Fluentd, Splunk, and ELK stack.
  • Deployed and managed operations for MySQL and SAP Sybase.
Technologies: Sybase, MySQL, Splunk, Fluentd, ELK (Elastic Stack), Grafana, Prometheus, Keycloak, Ansible, Kubernetes, Rancher, DevOps, Amazon EC2, Amazon Web Services (AWS)

DevOps Continuous Integration Engineer

2017 - 2018
ING Bank
  • Continuously improved the performance, scalability, and availability of CDaaS platform. The platform consists of hundreds of Docker containers managed with Mesos and Marathon.
  • Supported and maintained the storage solution Ceph where RADOS Block Devices (RBD) are stored.
  • Mounted block devices as persistent storage for Docker containers using Rexray and Libstorage drivers and API. Also contributed to the Libstorage GitHub project.
  • Developed a Jenkins plugin that publishes build information on Kafka bus.
  • Ensured configuration management of all VMs using Puppet and Ansible.
  • Oversaw integrations and automation using Python, Go, and Node.js.
  • Implemented secret management using Vault (Hashicorp).
  • Troubleshot the E2E CD/CI pipeline and provided guidance for CI/CD processes, rolling upgrades, etc.
Technologies: Python, Go, Vault, Ansible, Puppet, Ceph, Marathon, Mesos, Docker, DevOps, Amazon EC2

DevOps CI/CD Engineer

2016 - 2017
Bank Mendes Gans
  • Migrated, redesigned, and implemented the development pipeline.
  • Integrated and optimized development applications like Git, Jenkins, Artifactory, Sonar, Fortify, Jira, Crucible, and Fisheye.
  • Utilized the knowledge as a certified scrum master and made use of Docker containers and Kubernetes to agilely streamline and accelerate the development process.
Technologies: Kubernetes, Docker, Crucible, Jira, HP Fortify, Sonar, Artifactory, Jenkins, Git, Atlassian Fisheye

Technical Consultant

2015 - 2016
  • Designed and developed a new AAA platform for external customers. The deliverable consisted of a distributed TACACS as a service platform built with Active Directory (AD), the Lightweight Directory Access Protocol (LDAP), and MongoDB.
  • Deployed AAA platform components using Ansible scripts.
  • Contributed to the platform that was used to manage most of the network devices from the customer's core network.
Technologies: Ansible, Keepalived, HAProxy, Gunicorn, Flask, MongoDB, LDAP, Azure Active Directory

DevOps Engineer

2015 - 2015
  • Managed 200+ Red Hat servers via Red Hat Satellite to configure turn-key solutions for internal customers with specific configuration, storage, network, and deployed services requirements.
  • Worked for the capacity management department to develop custom KPIs in Cacti. Implemented custom system and service checks in Nagios.
  • Utilized Agile methodologies (Scrum, Kanban) to design and roll out an end-to-end configuration management system based on CFEngine, Elasticsearch, Kibana, and syslog-ng.
  • Implemented automated testing and deployment using Jenkins, Git, Vagrant, and KVM.
Technologies: KVM, Vagrant, Git, Jenkins, Syslog-ng, Kibana, Elasticsearch, CFEngine

Created Docker Birthday Number Three App

The infrastructure was able to handle thousands of requests and test more than 10,000 Docker images published by participants. It served 1,180 people who completed the assignment from 220 locations worldwide.
2002 - 2007

Master's Degree in Electronics, Telecommunications and Information Technology

Universitatea Politehnica Bucuresti - Bucharest, Romania


Certified Kubernetes Security Specialist

Cloud Native Computing Foundation


Certified Kubernetes Application Developer

The Linux Foundation


Certified Kubernetes Administrator

Cloud Native Computing Foundation


Neural Networks and Deep Learning


Certified RancherOS Partner and Consultant

Rancher Inc.


Certified Scrum Master



Financial Markets



Inspiring Leadership through Emotional Intelligence

Case Western Reserve University


ITIL Foundation Certificate in IT Service Management



Jenkins Job DSL, Jenkins Pipeline, XL Release REST API, Terragrunt


Terraform, Amazon EKS, Jenkins, GitLab CI/CD, Artifactory, Git, GitHub, Jira, Confluence, Bitbucket, Amazon Firewall, Kibana, Syslog-ng, Vagrant, Ansible, Keycloak, Grafana, ELK (Elastic Stack), Fluentd, Splunk, Mesos, Puppet, Vault, Sonar, HP Fortify, Crucible, Keepalived, Helm, Azure Kubernetes Service (AKS), Google Kubernetes Engine (GKE), SonarQube, Subversion (SVN), Bamboo, GitLab, Atlassian Fisheye


Continuous Delivery (CD), Continuous Integration (CI), DevOps


Linux, Kubernetes, Rancher, Docker, Amazon Web Services (AWS), Amazon EC2, KVM, Azure, DigitalOcean, Harbor


Elasticsearch, MySQL, Sybase, Ceph, Azure Active Directory, MongoDB, Google Cloud


Python, Bash, Go, SQL, Java, Groovy


CFEngine, Marathon, Flask


AWS DevOps, AWS NAT Gateway, Argo CD, Scrum Master, Cloud, Prometheus, LDAP, Gunicorn, HAProxy, Information Technology, Amazon RDS, AWS Global Accelerator, GitHub Actions, Kubernetes Operations (kOps), Machine Learning, Investments, Leadership, IT

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.


Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring