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Dorian LupuDL

Dorian Lupu

Senior Ruby on Rails Developer (+13 years XP)

€890/day
10 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Dorian

Serial entrepreneur and senior Ruby on Rails freelancer (+13 years of experience), I understand the essential challenges of entrepreneurs as well as the issues of Saas web products.

  • Are you looking for a technical partner capable of putting your vision into practice?
  • Are you in the prototyping phase with a tight budget?
  • Are you preparing for a fundraising phase and want to add critical features to your product quickly?
  • Are you facing growth that is putting your product to the test in terms of performance and security?
  • Do you already have a solution in place but want to be supported in an optimized redesign for your users (Ux/Ui)?

I am able to meet all these needs because I understand them! I know how to be proactive and I analyze and anticipate your strategic and technical challenges (in the short, medium and long term.).

I am at your disposal to discuss it, do not hesitate to contact me!

Who am I?
  • Senior full-stack developer - Ruby on Rails Expert - React Js
  • Founder and co-founder of 3 sustainable companies
  • Tech-curious
  • Passionate about development since the age of 13
  • Father of 2 children

My values:

  • Transparency
  • Kindness
  • Loyalty
  • Trust
  • English

    Fluent

  • Romanian

    Native or bilingual

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • The DeepCore
    Chief Technology Officer
    BANKING AND INSURANCE
    November 2020 - Today (5 years and 7 months)
    Paris, Île-de-France, France
    The DeepCore is the association of physical commodities brokers and a web development team.

    The objective of this collaboration is to offer our clients the best trading experience.

    From price discovery to trading, our ambition is to modernize, thanks to our innovations, the old-school trading process, and match our digitalization era. We also provide brokers, traders, and agents with tailored-mode software to develop their business in any available market.

    Our team has designed and implemented many different solutions that solved our customers’ most critical business needs.
    Ruby on Rails Ruby PostgreSQL GraphQL IT Security Stimulus Continuous Integration Responsive Integration
  • Kundigo
    Founder
    SOFTWARE PUBLISHING
    April 2015 - Today (11 years and 2 months)
    France, Paris Area
    Main services:

    • Build tailored web & mobile applications
    • Consultancy services as a freelance
    • Team reinforcement as a freelance

    You can hire me directly or via Toptal and Malt. See the projects section for more information about past work for clients like Finexkap, Effilab or Node Trading.
    Ruby on Rails Ruby PostgreSQL GraphQL Ionic Docker Heroku Continuous Integration React.js redux Web Integration Responsive Integration QA testing Back-End Development Front-End Development Web Development
  • Hivebrite
    Senior Back-End Developer
    SOCIAL NETWORKS
    November 2019 - February 2021 (1 year and 3 months)
    Paris, Île-de-France, France
    I’ve worked with the internal development team as a senior back-end developer on:

    • developing new features for the in-house applications (stack: Ruby on Rails + React JS)
    • improving performance issues under heavy traffic
    • reinforcing best practices related to testing by increasing test coverage
    • reducing technical debt and refactor legacy code
    Ruby on Rails Ruby PostgreSQL Docker Back-End Development Continuous Integration React.js

Reviews

5.0

Out of 10 ratings

JeanJ

Jean

Hivebrite

Reviewed on 2/7/2021

JeanJ

Jean

Hivebrite

Reviewed on 8/13/2020

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Education

  • Master's Degree, Engineer
    IMT Atlantique
    2006
    Final Major Project with honors based on accomplishments during the one-year internship at Alcatel CIT (see the first experience for more details)
  • Master's Degree, Engineer
    Universitatea „Politehnica” din Timișoara
    2006
    Main projects: Serial communication between 32 computers using one serial port (Hardware adapter design, simple chat software); Educational Software for Learning main graphs algorithms (minimum spanning tree, traveling salesman problem, breadth-first search, depth-first search) In 2003, after three years of study, I was selected in a three-year student exchange program between ENST Bretagne (Brest, France) - currently named IMT Atlantique - and Universitatea "Politehnica" (Timisoara, Romania).

Skill set

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