Tomasz Walis
London
Summary
Dynamic Senior Consultant at Cognizant with expertise in AWS infrastructure and Kubernetes orchestration. Proven track record in automating deployments and enhancing system performance, achieving 99.99% uptime. A collaborative team leader adept at driving digital transformation and security compliance in fast-paced environments.
Overview
7
7
years of professional experience
Work History
Senior Consultant
Cognizant
01.2023 - Current
- Designed and implemented highly available and scalable AWS infrastructure using EC2, S3, RDS, VPC, and Lambda
- Automated deployment pipelines with CodePipeline and GitLab CI, reducing deployment time
- Developed Infrastructure as Code (IaC) templates using Terraform and AWS CloudFormation to automate resource provisioning
- Managed Kubernetes clusters on AWS EKS, ensuring efficient container orchestration and scaling
- Implemented configuration management solutions using Ansible, enabling consistent and repeatable configurations
- Monitored application performance and system health using AWS CloudWatch, NewRelic, proactively resolving issues to maintain 99.99% uptime
- Collaborated with development teams to integrate automated testing and deployment processes, enhancing software delivery speed and quality
- Conducted regular security assessments and implemented best practices to ensure compliance with industry standards and regulations
- Developed and maintained scripts for automated backups, system updates, and application deployments
DevOps Consultant
Contino
01.2023 - 01.2024
- Leading the DevOps Team to formulate cloud strategy and improve infrastructure
- Implemented monitoring and observability solutions with NewRelic
- Managing of Kubernetes Clusters
- Docker
- Third party application integrations
DevOps Lead
Nationwide Building Society
09.2020 - 11.2022
- Company Overview: Contract
- Led the DevOps Team to formulate cloud strategy and improve infrastructure and delivery pipeline
- Managed and supported large infrastructures including EC2, RDS, ELB, LB, S3, Route53, Cloudfront
- Implemented monitoring and observability solutions with DataDog
- Developed CI/CD pipelines for web and serverless applications
- Architected cloud solutions to optimise overall infrastructure costs
- Developed, integrated, and deployed Python code, including source code management
- Analysed cloud infrastructure and recommended improvement
- Prepared documentation for configuration and installation procedures
- Set up AWS accounts for development, creating the landing zones
- Developed contact centres using Amazon Connect
- Provided technical direction and oversight to cloud implementation teams
- Worked with Jira for defect/issue logging & tracking and documented all work using Confluence
- Coordinated/assisted developers with establishing and applying appropriate branching, labelling, and naming conventions using GIT source control
- Contract
Technical Specialist / DevOps
Barclays
01.2020 - 07.2020
- Company Overview: Contract
- Led the Infrastructure Team
- Proactively supported team building and on-boarding efforts via mentoring contributions
- Led white-boarding and planning sessions
- Worked in distributed computing environments
- Created and implemented automation for cloud platforms, as well as monitoring and alerting
- Implemented unit testing and continuous integration within a CodePipeline
- Drove CI/CD and automation initiatives
- Part of the client's scrum team, working on user stories
- Designed, managed, and maintained tools to automate operational processes
- Contract
DevOps Engineer
Royal Bank of Scotland
09.2018 - 03.2020
- Company Overview: Contract
- Wrote automation testing frameworks
- Added new product application features
- Participated in AWS development for managing call centre
- Dealt with customer queries about the application functionality
- Developed new application features
- Contract
Education
BEng (Hons) - Software Engineering
University of Westminster
01.2018
Skills
- AWS infrastructure
- Python
- Bash
- Ansible
- Powershell
- Infrastructure as code
- AWS Kinesis
- AWS Firehose
- Designing applications on AWS
- Highly available systems
- Scalable systems
- Managing systems on AWS
- Logging and monitoring
- Performance monitoring
- Team leadership
- Agile methodologies
- Security compliance
- Cost management tools
- Digital transformation
- Team player
- Fast-paced environment
- Cloud strategy
- Kubernetes management
- Configuration management
- Container orchestration
- CI/CD pipelines
- Automated testing
- Software delivery
- Software testing
- Script maintenance and updates
- Project management
- Security best practices
- Software development tools: JIRA, confluence
- Software architecture
- Machine learning
- Linux environments
Websites
Timeline
DevOps Consultant
Contino
01.2023 - 01.2024
Senior Consultant
Cognizant
01.2023 - Current
DevOps Lead
Nationwide Building Society
09.2020 - 11.2022
Technical Specialist / DevOps
Barclays
01.2020 - 07.2020
DevOps Engineer
Royal Bank of Scotland
09.2018 - 03.2020
BEng (Hons) - Software Engineering
University of Westminster
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