Recommended expert

Nico Saueressig

Freelance Software Engineer

Nico Saueressig
Heidelberg, Germany

Experience

Oct 2022 - Present
3 years 4 months

Freelance Software Engineer

HL Design

  • Implementing new features using best practices for a long running e-commerce and content management platform used by a large variety of different customers.
  • Technologies: Ruby on Rails, Ruby, REST, PostgreSQL, TDD, RSpec, Testing
  • Domain: e-commerce, CMS
Nov 2021 - Sep 2022
11 months

Freelance Software Engineer

Fluidmobile GmbH

  • Extending and improving a mature Ruby on Rails platform to support multiple mobile apps and IoT applications.
  • Technologies: Ruby on Rails, Ruby, REST, PostgreSQL, TDD, RSpec, Testing, Heroku CI
  • Practices: Agile practices, IoT
Oct 2020 - Dec 2021
1 year 3 months

Freelance Software Engineer

Parcelly Ltd

  • Maintaining and extending a mature Sinatra platform with a Ruby on Rails based administration interface at scale.
  • Technologies: Sinatra, Ruby on Rails, Ruby, REST, PostgreSQL, TDD, Minitest, Testing, CI, Resque
  • Domain: Logistics, Scale
Sep 2020 - Apr 2021
8 months

Freelance Software Engineer

Neoom Group

  • Implementing new features in a Ruby on Rails app both frontend and backend.
  • Some use of VueJS.
  • Consulting and pushing good practices.
  • Retrofitting tests.
  • Technologies: Ruby on Rails, Ruby, REST, PostgreSQL, TDD, Minitest, CI, VueJS, IoT
Feb 2020 - Mar 2020
2 months

Freelance Software Engineer

Allianz SE

  • Conceptualising and implementing a new payment solution for an internationally well known Allianz partnership in the dental medical space.
  • Technologies: Ruby, Sinatra, Stripe
Mar 2019 - Apr 2019
2 months

Freelance Software Engineer

Brümmer Digital Ventures

  • Providing technical consulting and auditing existing products.
  • Making sensible technical choices.
Feb 2018 - Apr 2020
2 years 3 months

Freelance Software Engineer

ProSiebenSat.1 Media SE

  • Implementing new features and improving a legacy Ruby on Rails backend with multiple Angular frontends.
  • Architecting and rewriting the legacy platform ensuring 100% code coverage and clean code practices.
  • Maintaining and updating the platform.
  • Technologies: Ruby on Rails, Ruby, Sinatra, Angular, JavaScript, REST, PostgreSQL, AWS (EC2, ELB, Lambda, S3), Heroku, TDD, RSpec, Testing, DevOps, Infrastructure, CI, Serverless, Microservices
Dec 2017 - Feb 2018
3 months

Freelance Software Engineer

100Worte

  • Developed a Python Flask frontend application.
  • Integrated backend services and built a user and administration dashboard.
  • Technologies: Python, Flask, JavaScript
Nov 2017 - Dec 2017
2 months

Freelance Software Engineer

Entangled

  • Integrated backend and added new UI views to an iOS application.
  • Developed new backend endpoints and a complex metrics module in a NodeJS backend application.
  • Technologies: iOS, Swift, NodeJS, JavaScript, PostgreSQL
Aug 2017 - Oct 2017
3 months

Freelance Software Engineer

Wawibox

  • Assisted with their iOS application.
  • Wrote a NodeJS integration test suite for their public API.
  • Technologies: iOS, Swift, NodeJS, JavaScript, Testing
Jun 2017 - Jul 2017
2 months

Freelance Software Engineer

Sketch

  • Worked on an iOS application.
  • Migrated backend to a new hosted Parse solution and added functionality.
  • Technologies: iOS, Swift, Parse
Feb 2016 - Apr 2017
1 year 3 months
London, United Kingdom

Software Engineer

eBay Shipping Team

  • Built a full range shipping solution for eBay sellers with integration of major carriers.
  • Worked on an existing massively scaled legacy SOA.
  • Led agile transformation and improved towards continuous deployment.
  • Initiated internal engineering excellence initiatives.
  • Technologies: Java, JUnit, Infrastructure, Agile transformation, Testing
Sep 2014 - Apr 2017
2 years 8 months
London, United Kingdom

Software Engineer

Shutl Ltd

  • Developed the Shutl iOS app in Swift with a Clojure backend to track deliveries.
  • Built a fully responsive and test-driven Rails corporate website for same day deliveries.
  • Engaged in pair programming, retrospectives, daily standups, and on-call platform engineering.
  • Monitored and tested microservice architecture.
  • Technologies: Ruby, Ruby on Rails, Sinatra, Clojure, iOS, Swift, JavaScript, AWS, DevOps, CI, MongoDB, PostgreSQL, Agile practices, TDD, Testing

Summary

I am a freelance software developer. I have worked with large stock traded companies as well as numerous startups. I have been involved with concrete implementations, architecting technical solutions, introducing agile project management and development processes as well as technical consulting.

Skills

  • Ruby

  • Ruby On Rails

  • Sinatra

  • Swift

  • Ios

  • Javascript

  • Nodejs

  • Tdd

  • Rspec

  • Capybara (With Selenium, Chrome Etc.)

  • Cucumber

  • Testing

  • Testing Automation

  • Pair Programming

  • Agile Practices

  • Technical Project Management

  • Postgresql

  • Mongodb

  • Rest

  • Apis

  • Microservice Architectures

  • Serverless

  • Aws (Ec2, Elb, Cloudwatch, Elastic Transcoder, Lambda, S3, Elastisearch Etc.)

  • Heroku

  • Devops

  • Infrastructure

  • Chef

  • Jenkins

  • Semaphore

  • Heroku Ci

  • Riemann

  • Nagios

  • Continuous Integration (Ci)

  • Continuous Deployment (Cd)

  • Atlassian (Jira, Confluence)

  • Trello

  • Miro

Languages

German
Native
English
Advanced

Education

Oct 2010 - Jun 2013

Middlesex University

Bachelor of Arts (Hons.), Audio Production · Audio Production · London, United Kingdom

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