freiberufler DevOps & Ruby on Rails Engineer & Speaker auf freelance.de

DevOps & Ruby on Rails Engineer & Speaker

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  • 10409 Pankow
  • Weltweit
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  • 03.01.2025

Kurzvorstellung

Highly skilled Ruby on Rails engineer and DevOps consultant with a wealth of experience and expertise. Proficient in designing and developing robust, scalable applications using Ruby on Rails and React.

Auszug Referenzen (3)

"O. G. ist ein exzellenter Freelancer der seinen Kunden Service bietet, der über die reinen Arbeitsergebnisse hinausgeht."
Senior Engineer (Ruby, Ruby on Rails, ReactJS, DevOps)
Chris Wörle
Tätigkeitszeitraum

1/2019 – 10/2020

Tätigkeitsbeschreibung

Responsibilities include:
- adding features and maintaining Ruby on Rails applications, some use latest ruby others are using 1.8.7.
- adding features and maintaining ReactJS
- configuration and management of staging and production machines.
- configuration and maintenance of GitLab CI/CD for testing, building, and deploying services
- configuration of Rancher with managed k8s and non managed.

Eingesetzte Qualifikationen

Continuous Delivery, Server-Monitoring, Google Cloud, Kubernetes, React (JavaScript library), Ruby on Rails

"O. is a very intelligent developer with a vast amount of experience developing full stack applications. Highly Recommended!"
CTO and co-founder (Festanstellung)
ryan stokes
Tätigkeitszeitraum

9/2009 – 4/2012

Tätigkeitsbeschreibung

Started a Web development agency with a UX specialist, delivering Ruby on Rails solutions to wide array of clients: car rental companies, real estate, magazine, hotels... I was in charge of implementing the systems in Ruby as well as client acquisition.

Eingesetzte Qualifikationen

WordPress, Hosting, Jquery, Ruby on Rails, Account Management

"O. was a fantastic asset to our team. His continued support, creativity and flexibility made him our go-to engineer and innovator."
Lead Developer (Festanstellung)
Dario Lofish
Tätigkeitszeitraum

2/2005 – 6/2009

Tätigkeitsbeschreibung

Madrid based advertising agency was key in the digital transformation process from traditional print to web development services provider. Started building systems with PHP, ended implementing applications with Ruby on Rails for various industries: Hospitality, alcohol, banking.

Eingesetzte Qualifikationen

Hosting, Jquery, PHP, Ruby on Rails

Qualifikationen

  • Amazon Web Services (AWS)4 J.
  • Continuous Delivery4 J.
  • Continuous Integration1 J.
  • Cyber Security2 J.
  • DevOps3 J.
  • Docker6 J.
  • Git3 J.
  • Google Cloud4 J.
  • HTML51 J.
  • Infrastrukturarchitektur2 J.
  • Kubernetes7 J.
  • Node.Js1 J.
  • React (JavaScript library)5 J.
  • Ruby on Rails18 J.

Projekt‐ & Berufserfahrung

Platform Engineer
Mercedes Benz Tech Innovation, Ulm
10/2023 – offen (1 Jahr, 4 Monate)
Automobilindustrie
Tätigkeitszeitraum

10/2023 – offen

Tätigkeitsbeschreibung

Managing 1000 cluster across the entire Mercedes Ecosystem

Eingesetzte Qualifikationen

Amazon Web Services (AWS), Continuous Delivery, Continuous Integration, Kubernetes

DevOps Engineer / Full Stack engineer
Devolute GmbH, Berlin
11/2022 – offen (2 Jahre, 3 Monate)
IT & Entwicklung
Tätigkeitszeitraum

11/2022 – offen

Tätigkeitsbeschreibung

- Assist with migratation of the legacy AWS account to new one - each environment gets its account. (Used AWS Datasync to migrate s3 buckets)
- Added WAF terragrunt module
- Implemented company wide policy to use conventional commits and commitlint on every repository
- Automated release process and changelog generation by adding a Github Worfklow.
- Optimized test run time by splitting tests in to parallel processed in Github
- Moved environment variables from unsafe (github secrets / hardcoded) to AWS Secret manager and use Secret Store CSI driver

Eingesetzte Qualifikationen

Continuous Delivery, Cyber Security, DevOps, Docker, Infrastrukturarchitektur, Kubernetes, Node.Js, Ruby on Rails

Senior Backend Engineer
New Work SE, Hamburg
5/2022 – 11/2022 (7 Monate)
IT & Entwicklung
Tätigkeitszeitraum

5/2022 – 11/2022

Tätigkeitsbeschreibung

Maintained Monolith, upgraded rails from 5.1 to 6.1 and ruby from 2.7.6 to 3.0.4, removed unused code, created new API endpoints

Eingesetzte Qualifikationen

Ruby, Ruby on Rails

DevOps Engineer
Tignum GmbH, Berlin
1/2022 – 4/2022 (4 Monate)
IT & Entwicklung
Tätigkeitszeitraum

1/2022 – 4/2022

Tätigkeitsbeschreibung

Maintained and built terraform based infrastructure

Eingesetzte Qualifikationen

Amazon Web Services (AWS), DevOps

Senior Backend Engineer
New Work SE, hamburg
12/2021 – 12/2021 (1 Monat)
IT & Entwicklung
Tätigkeitszeitraum

12/2021 – 12/2021

Tätigkeitsbeschreibung

Maintained ruby on rails application and supported other areas of the business unit

Eingesetzte Qualifikationen

DevOps, Kubernetes, Ruby on Rails

Principal Full Stack Engineer
Farmlink project, San Francisco
4/2021 – 10/2021 (7 Monate)
Soziale Einrichtungen
Tätigkeitszeitraum

4/2021 – 10/2021

Tätigkeitsbeschreibung

The Farmlink Project is an innovative non-profit combating hunger, reducing food waste, and fighting climate change by connecting farmers with surplus produce to communities in need.

Built an MVP, that fit the requirements provided by the organization, as foundation to an extendable system.
Managed the communication between product team and engineering.
Extended active admin to fit other areas of the core functionality.
Implemented a redesign of the admin area to fit the farmlinker UX persona with React Admin.

Eingesetzte Qualifikationen

Application Development, DevOps, Git, Management (allg.), QoS (Quality of Service), React (JavaScript library), Ruby on Rails

Senior Engineer (Ruby, Ruby on Rails, ReactJS, DevOps)
Devolute GmbH, Berlin
1/2019 – 10/2020 (1 Jahr, 10 Monate)
IT & Entwicklung
Tätigkeitszeitraum

1/2019 – 10/2020

Tätigkeitsbeschreibung

Responsibilities include:
- adding features and maintaining Ruby on Rails applications, some use latest ruby others are using 1.8.7.
- adding features and maintaining ReactJS
- configuration and management of staging and production machines.
- configuration and maintenance of GitLab CI/CD for testing, building, and deploying services
- configuration of Rancher with managed k8s and non managed.

Eingesetzte Qualifikationen

Continuous Delivery, Server-Monitoring, Google Cloud, Kubernetes, React (JavaScript library), Ruby on Rails

Senior Frontend Engineer & DevOps Advocate (Festanstellung)
WATTx GmbH, Berlin
1/2016 – 10/2018 (2 Jahre, 10 Monate)
IoT & Venture Builder
Tätigkeitszeitraum

1/2016 – 10/2018

Tätigkeitsbeschreibung

- Migrated all infrastructure from AWS hosted containers to Kubernetes on GCP, reducing costs by 10x and creating DevOps culture.
- Created CI/CD pipelines to Kubernetes with jenkins and circle.io
- Worked with GOLANG to build a Slack bot for office management
- Built frontends in ReactJS for projects
- Built prototypes in Ruby on Rails
- Organised company and team events

Eingesetzte Qualifikationen

Amazon Web Services (AWS), Docker, Git, Google Cloud, Kubernetes, React (JavaScript library), Ruby on Rails

Head of Integrations (Festanstellung)
Cubits Ltd, Berlin
5/2014 – 11/2015 (1 Jahr, 7 Monate)
Finanzdienstleister
Tätigkeitszeitraum

5/2014 – 11/2015

Tätigkeitsbeschreibung

Responsibilities:
- building prototype versions in Ruby on Rails,
- building the frontend merchant UI with BackboneJS and MarionetteJS.
- building Merchant third-party integrations in Ruby, PHP, as well as plugins for most e-commerce software.
- promote our technology at conferences

Eingesetzte Qualifikationen

Blockchain (allg.), Docker, Backbone.Js, PHP, Ruby on Rails

Senior Ruby on Rails Engineer (Festanstellung)
Pressmatrix GmbH, Berlin
2/2013 – 5/2014 (1 Jahr, 4 Monate)
IT & Entwicklung
Tätigkeitszeitraum

2/2013 – 5/2014

Tätigkeitsbeschreibung

Working on the importing pdf to iOS / Android functionality, allows clients digitize their print to tablet compatible formats.

Eingesetzte Qualifikationen

Android, iOS, CSS (Cascading Style Sheet), HTML5, Jquery, Ruby on Rails

CTO and co-founder (Festanstellung)
Feature Rich Ltd, Aberdeen
9/2009 – 4/2012 (2 Jahre, 8 Monate)
IT & Entwicklung
Tätigkeitszeitraum

9/2009 – 4/2012

Tätigkeitsbeschreibung

Started a Web development agency with a UX specialist, delivering Ruby on Rails solutions to wide array of clients: car rental companies, real estate, magazine, hotels... I was in charge of implementing the systems in Ruby as well as client acquisition.

Eingesetzte Qualifikationen

WordPress, Hosting, Jquery, Ruby on Rails, Account Management

Lead Developer (Festanstellung)
Latexlab SL, Madrid
2/2005 – 6/2009 (4 Jahre, 5 Monate)
IT & Entwicklung
Tätigkeitszeitraum

2/2005 – 6/2009

Tätigkeitsbeschreibung

Madrid based advertising agency was key in the digital transformation process from traditional print to web development services provider. Started building systems with PHP, ended implementing applications with Ruby on Rails for various industries: Hospitality, alcohol, banking.

Eingesetzte Qualifikationen

Hosting, Jquery, PHP, Ruby on Rails

Zertifikate

Informatics / Ba of Sci
2009

Weitere Kenntnisse

Languages/Frameworks:
- Ruby
- Ruby on Rails
- Node
- ReactJS
- React Native
- AstroJS
- NextJS
- expo.io
- Golang
- GraphQL
- GatsbyJS
- Elastic Search
- Kafka
- CSS
- HTML5
- PHP
- Java
- C++

DevOps:
- Terraform
- Docker
- Kubernetes.
- Gitlab, Gitlab CI/CD, Gitlab Runners.
- Github, Github Action
- Azure DevOps
- Rancher.
- Load Balancers
- nginx, Apache
- Kafka
- Camunda
- Capistrano
- monitoring and instrumentation with ELK
- Cloud Providers: GCP, AWS, Azure, Heroku

Persönliche Daten

Sprache
  • Englisch (Muttersprache)
  • Spanisch (Muttersprache)
  • Französisch (Gut)
  • Deutsch (Grundkenntnisse)
Reisebereitschaft
Weltweit
Arbeitserlaubnis
  • Europäische Union
  • Schweiz
  • Vereinigte Staaten von Amerika
Home-Office
unbedingt
Profilaufrufe
3257
Berufserfahrung
19 Jahre und 11 Monate (seit 02/2005)
Projektleitung
4 Jahre

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