VIKTOR MENDES–JENESON
Singapore,Singapore
Summary
Experienced with cloud platforms, containerization, and infrastructure as code. Utilizes advanced cloud technologies to create scalable and secure environments. Track record of optimizing cloud performance and ensuring seamless integration with existing systems, fostering operational efficiency and innovation.
Cloud development professional with strong focus on delivering robust, scalable solutions. Known for effective team collaboration and adaptability in dynamic environments. Proficient in cloud architecture, deployment automation, and security best practices. Reliable team player committed to achieving measurable results.
Overview
13
13
years of professional experience
Work History
Senior Cloud Developer
Prudential
07.2024 - Current
- Full Stack Developer and owner of a key in-house automation and multi-cloud asset management application (Django)
- Maintaining and expanding backend and frontend functionality
- Participating in an organization-wide Bitbucket to GitHub migration
- Designing and managing a multi-layer AAA (Authentication, Authorization, Accounting) model
- Combining permissions from on-prem Active Directory and Microsoft Entra ID
- Integrating GitHub workflows with fine-grained access control
- Building integrations with cloud/SAAS providers and in-house applications
- Automating cloud-based Virtual Desktop Infrastructure provisioning via 3rd party service
- Retrieving cloud spending reports from a bespoke billing system
- Exposing asset data to internal applications via REST APIs
- Multi-cloud asset search
- Managing a highly complex infrastructure-as-a-service platform (Terraform/Ansible)
Python Developer / Infrastructure Engineer
Millennium
06.2020 - 08.2023
- Collaborated with multiple development teams, building internal application backends (FastAPI)
- Maintained a critical legacy application (FAB, 9 years of code history), while building an updated version
- Built a cost-efficient solution to perform large batch data processing (Apache Airflow/AWS Batch)
- Set up automated ETL data pipeline in AWS (Pandas, PySpark, Athena)
- Managed highly complex AWS infrastructure using in-house Python provisioning framework
- Created bespoke Python SNMP clients for the new monitoring system, deployed across entire server estate (pysnmp)
- Provided development/DevOps expertise to other teams
Automation Engineer
Pico Quantitative Trading
07.2018 - 06.2020
- Converted legacy Python scripts into Kubernetes applications
- Created bespoke zero-touch provisioning framework for network devices from multiple vendors (Python3, napalm)
- Wrote Python tools and libraries to interact with 3rd party services (Device42 Asset Management DB, JIRA, Salesforce)
- Centralized in-house automation using Rundeck (task execution platform)
- Set up CI/CD pipelines for critical projects, with automated test, build and deploy stages (via Gitlab)
- Mentored junior developers and staff members keen to learn coding and new technologies
Application Developer
Barclays Investment Bank
07.2017 - 05.2018
- Worked on multiple projects related to Cloud Migration initiative
- 3 gateway applications that controlled interactions between internal users and systems and AWS (Django, Flask)
- Command-line tool to configure AWS accounts based on given parameters (Boto3)
- Automated configuration of Infoblox DNS clusters (pexpect)
Automation Developer
Barclays Investment Bank
01.2017 - 06.2017
- Designed and implemented a comprehensive BDD test framework to verify AWS account configuration
- Python3, Behave, Boto3, 1000+ test cases
- Tested configurations of EC2, S3, ELB, Autoscaling, Lambda
Build Engineer
The Workshop
02.2016 - 08.2016
- Assisted the development team in modernising the multi-million user betting platform and implementing CI/CD
- Developed in-house Python automation tools and Ansible modules
- Automated migration of a large codebase from SVN to Atlassian Stash
- Automated Release Management using Ansible, Bash, Python and REST APIs
DevOps Engineer
BSkyB – Online Video Platform
08.2015 - 02.2016
- Participated in a critical migration project of the video streaming platform from AWS to on-premise.
- Created bespoke Python2/Puppet4-based deployment tool to be used for all software rollouts
- Automated deployment of a standardised modular infrastructure using CI workflows
- Created a brand-new full stack infrastructure: Centos 7, VMWare, Puppet 4, Java 7/8, SteelApps Load balancers
- Prototyped the usage of Kubernetes
Senior Systems Engineer
O2 Telefónica UK (WiFi division)
01.2015 - 08.2015
- Implemented a cutting-edge CI solution using the latest tools (Thoughtworks GO CI server):
- Automated the Deployment of several key infrastructure elements and in-house applications
- Created a resilient Dev environment using VMWare ESXi 5 cluster and vSAN technologies
- Collaborated with developers and testers to improve application deployment and testing processes
Web Operations Engineer
H.M. Revenue and Customs
09.2014 - 12.2014
- Maintained and managed cloud-hosted instances of Github Enterprise, JIRA and Confluence
- Created a new directory server structure to achieve single sign-on for all applications
- Built a new cloud-hosted Staging environment
- Worked on Puppet codebase and automation scripts
IT Operations Engineer
Tradition
03.2014 - 08.2014
- Responsible for maintenance of Linux infrastructure and several major Java-based interbank trading platforms
- Migrated infra codebase from Puppet Open Source to Puppet Enterprise
- Rebuilt and upgraded VMWare ESXi infrastructure
- Replaced manually built RHEL 4/5 environments with fully Puppet-managed Oracle Linux 6.5 ones
- Assisted QA in managing test environments
System Administrator/DevOps Engineer
LMAX
01.2012 - 03.2014
- Built and maintained multiple production and test environments
- Wrote Puppet code for existing and new infrastructure elements
- Supported live production systems, that run the Java-based FX trading platform
- Assisted in building and managing 3 different datacentres
- Built a Linux-based Active Directory environment running on Samba 4 servers
- Worked closely with developers in line with DevOps/Agile principles
- Further employment history available on request
Education
BSc - Psychology
University of Southampton
Hampshire, England01.2008
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Ferndown Upper School
Dorset, England01.2005
High School No.5 - undefined
01.2002
Skills
- PROGRAMMING LANGUAGES: Python37-312
- PYTHON APP FRAMEWORKS: Django, Flask, FAB, FastAPI
- FRONTEND DEVELOPMENT: HTML/CSS/JavaScript
- SCRIPTING LANGUAGES: Bash, Powershell
- DATABASES: MySQL, Postgres, MongoDB
- CLOUD PLATFORMS: AWS, Azure, GCP
- WORKFLOW AUTOMATION: Apache Airflow, AWS Batch
- TEST AUTOMATION: Behave BDD test framework
- CONFIG AUTOMATION: Ansible, Puppet, Terraform
- VCS/CI/BUILD MANAGEMENT: Github, Gitlab, GO CI Server, Jenkins, Atlassian Bamboo, Maven, BitBucket
- CONTAINER MANAGEMENT: Docker, Kubernetes, OpenShift
- VIRTUALIZATION: VMWare, vCloud Director, KVM, OpenStack, VirtualBox, Vagrant
- DIRECTORY SERVICES: OpenLDAP, IPA, Samba, Active Directory, Azure Entra ID
- SERVER OS: RHEL/Centos/Oracle Linux, Fedora, Ubuntu, Windows Server 2003-2012
- NETWORK DEVICES: Cisco Nexus, BIG-IP F5, Arista, Fortigate
- WEB SERVERS / PROXY: Apache HTTPD Server, NginX, HAProxy, stunnel
SELF-DIRECTED LEARNING
- DSA, OOP, SQL, Design Patterns, System Design Sept 2023 – June 2024
- Python Programming, Django, Flask Sept 2016 – Dec 2016
Timeline
Senior Cloud Developer
Prudential
07.2024 - Current
Python Developer / Infrastructure Engineer
Millennium
06.2020 - 08.2023
Automation Engineer
Pico Quantitative Trading
07.2018 - 06.2020
Application Developer
Barclays Investment Bank
07.2017 - 05.2018
Automation Developer
Barclays Investment Bank
01.2017 - 06.2017
Build Engineer
The Workshop
02.2016 - 08.2016
DevOps Engineer
BSkyB – Online Video Platform
08.2015 - 02.2016
Senior Systems Engineer
O2 Telefónica UK (WiFi division)
01.2015 - 08.2015
Web Operations Engineer
H.M. Revenue and Customs
09.2014 - 12.2014
IT Operations Engineer
Tradition
03.2014 - 08.2014
System Administrator/DevOps Engineer
LMAX
01.2012 - 03.2014
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Ferndown Upper School
High School No.5 - undefined
BSc - Psychology
University of Southampton
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