Chitrung Nguyen - Staff Software Engineer, Infrastructure

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Berlin, Germany

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Experience

Apr 2023 - Present

3 years 5 months

Staff Software Engineer - Infrastructure

Workpath

Owning, designing, securing, maintaining reliability of the cloud based platform environments
Increasing developer productivity and growing the infrastructure team horizontally and vertically to 5 engineers
Realised infrastructure cost reduction of 50% by utilizing efficient spot instances
Improved PE developer efficiency by 15% with survey led development process

Apr 2021 - Apr 2023

2 years 1 month

Lead Site Reliability Engineer

Workpath

Halved response time of backend while requests were increasing two fold
Moved the product from on premise to native cloud on EKS
Educated engineers on development experience best practices and shaped the organization to adopt these in a formal, repeatable way
Reduced barriers for engineers to deploy and optimize systems, and actively built bridges between security, development, operations, QA, and customer technical support
Responsible for managerial tasks such as 1:1s, performance reviews, participating in interview loops, introducing engineering levels

Sep 2018 - Aug 2020

2 years

Infrastructure Security Engineer

Contentful

Owning and securing the cloud based content platform production environment
Led, designed and implemented projects across multiple teams such as a secrets management synchronization component as Kubernetes operator in Golang and a company wide cloud SSO (Okta) roll out across 200 internal apps
Responsible for corporate security best practices, employee training and SDLC
Managed the bug bounty program
Conducted job interviews of candidates
Supported ISO27001 implementation by facilitating processes and writing policies

Sep 2017 - Aug 2018

1 year

DevOps Engineer

Funke Digital

Provided general strategic direction of cloud migration and IT security
Migrated production from on premise data center to AWS cloud platform
Built and managed a Kubernetes cluster
Migrated microservices from native execution to container environment
Automated infrastructure as code with Terraform and Ansible
Built Jenkins multibranch pipeline
Built one-command dev environment using docker-compose and docker-machine
Monitored systems with Grafana
Aggregated logs with ELK Stack
Conducted job interviews of potential new hires

Mar 2016 - Aug 2017

1 year 6 months

Berlin, Germany

IT System Administrator/DevOps

Bytepark

Planned and executed VMware ESXi3 to ESXi5 migration
Deployed a Selenium Grid test environment with different hosts (Windows/Linux) and WebDrivers (PhantomJS, Firefox, Internet Explorer, WebKit)
Designed the hosting infrastructure with Ansible, based on Docker, Nginx, PHP and MariaDB
Orchestrated containers with Ansible and Docker Compose and designed CI/CD pipelines with GitLab
Designed and applied security concept for internal IT, infrastructure and employees

Apr 2015 - Nov 2017

2 years 8 months

IT Consultant/Full Stack Development

Self-Employed

adIQ: Analyzed and evaluated the existing database; optimized queries and structures
geoberlin: Fully developed and designed the geoberlin blueprint download app; rolled out the Redmine project management system
JallousDruckhaus: Webdesign and front end development for clients with Ruby on Rails and Jekyll
Respatex: Updated the old static page into a mobile-responsive website
Provided system administration for aforementioned clients' web and database environments

Jan 2012 - Mar 2015

3 years 3 months

IT Security Test Analyst

T-Systems

Penetration testing of various systems, databases (including Oracle, MySQL, MSSQL), web applications and servers
Analyzed and evaluated IT systems; documented security vulnerabilities

Jan 2011 - Dec 2012

2 years

Software Developer

T-Systems

Developed a tool for statistical analysis of support ticket data
Implemented as a Joomla plugin in PHP

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology and Media and Entertainment.

Information Technology

Media and Entertainment

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Project Management, Product Development, Customer Service, Operations, and Quality Assurance.

Information Technology

Project Management

Product Development

Customer Service

Operations

Quality Assurance

Skills

Basic

Adobe Creative Suite
Sqlite
Kvm
Vmware Vcloud Suite
Elk Stack
Windows Server 2008

Intermediate

Html5
Css3
Javascript
Ruby(On Rails)
Latex
Git
Postgresql
Nginx
Ansible
Vagrant
Nagios
Grafana
Aws
Microsoft Windows & Office Suite
Golang

Advanced

Linux (Debian, Rhel)
Lamp Stack
Bsd(Mac Os X)
Security Testing
Docker
Shellscripting
Aws(Compute, Storage, Iam, Kubernetes, Terraform

Languages

German

Native

Vietnamese

Native

English

Advanced

Spanish

Elementary

Education

Oct 2011 - Sep 2015

University of Applied Sciences for Telecommunications Leipzig

Bachelor of Science Dual Study, Bachelor Thesis Title: Economic Effects of Cyber Attacks on Business Informatics · Business Informatics · Leipzig, Germany

Certifications & licenses

VS-NfD Briefing

Statistics

Experience

Total positions 8

Experience in Information Technology 14 y

Avg length 2 y 2 m

Longest experience 3 y 4 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Staff Software Engineer - Infrastructure, Lead Site Reliability Engineer, Infrastructure Security Engineer

Main industries Information Technology, Media and Entertainment

Main business areas Information Technology, Project Management, Product Development

Qualifications

Highest degree Bachelor

Certifications earned 1

Profile

Created

November 2023

Last Update

November 2025

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Frequently asked questions

Have questions? Find more information here.

Chitrung is based in Berlin, Germany.

Chitrung speaks the following languages: German (Native), Vietnamese (Native), English (Advanced), Spanish (Elementary).

Chitrung has at least 15 years of experience. During this time, Chitrung has worked in at least 8 different roles and for 6 different companies. The average length of individual experience is 2 years and 10 months. Note that Chitrung may not have shared all experience and actually has more experience.

Based on recent experience, Chitrung would be well-suited for roles such as: Staff Software Engineer - Infrastructure, Lead Site Reliability Engineer, Infrastructure Security Engineer.

Chitrung's most recent position is Staff Software Engineer - Infrastructure at Workpath.

In recent years, Chitrung has worked for Workpath.

Chitrung is most experienced in industries like Information Technology and Media and Entertainment.

Chitrung is most experienced in business areas like Information Technology, Project Management, and Product Development. Chitrung also has some experience in Customer Service, Operations, and Quality Assurance.

Chitrung has recently worked in industries like Information Technology.

Chitrung has recently worked in business areas like Information Technology, Customer Service, and Operations.

Chitrung holds a Bachelor in Business Informatics from University of Applied Sciences for Telecommunications Leipzig.

Chitrung has 1 certificate: VS-NfD Briefing.

Chitrung is immediately available for suitable projects.

Daily Rate Distribution

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<€640 €640-800 €800-960 €960-1120 €1120+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

Average rates for similar positions

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Daily rate avg. 986 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1200

900

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Median rate 1040 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.