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Constantin
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Constantin

Berlin, Germany --:--:--

Constantin is a Senior Software Engineer with more than 10 years of experience focused on frontend development. He has built numerous e-commerce platforms, native mobile apps, candidate-matching Human Resource Platforms, and wedding photography websites. The core tech stack in most of the projects was React / React Native + Typescript for the Front End, and Postgres accompanied by Nest.js/Node.js, Django, or Rails. As a Full-stack Developer with a focus on Frontend, he mostly enjoys solving large-scale performance issues with Offline First Apps. Beyond these skills, his core strength is his ability to translate technical terms into plain English and do the opposite translating vague client requirements to explicit product features to developers.

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Skills
Years
1
2
3
4
5
6
7
8
9
10+
Java
MongoDb
SQL Server
GitLab
Redux
Python
ReactJS
SASS
JavaScript
React SDK
Machine Learning
AWS
Docker
Node.js
Django
React Native
Git
Next.js
LESS
Objective-C
Typescript
jQuery
MaterialUI
PostgreSQL
Express
Ruby
APIs
Firebase
Jest
HTML
Datadog
WordPress
Bootstrap
Sentry
CSS
Swift
Tortoise SVN
Jira
AJAX
Kotlin
Gulp
PHP
JSON
Yarn
MySQL
XML
Grunt
Developer Personality

Independent

Collaborative

Trailblazer

Conservative

Generalist

Specialist

Planner

Doer

Idealist

Pragmatist

Abstraction

Control

100
50
0
50
100
Feature Experience

Monorepos

Offline First Design

Domain Driven Design

Cross-Platform

MODERATE
EXTENSIVE
EXPERT
Cultural Experience

E-Commerce

Photography

Human Resources

Marketing

MODERATE
EXTENSIVE
EXPERT
Portfolio

Capmo

Consultant Senior Software Engineer

Work Experience : 2022 - present

Covers areas of the software that lacked attention for a long time and became problematic with time. Performa major platform upgrades of third-party libraries of which the product is dependent and making sure that the product quality would not fall behind and that would not introduce any major bugs in the product along the way.

  • Improving app performance by 60% by removing extended and redundant re-renders, different memory leaks and pushing a standardized state management approach which was researched and discussed within company software department.
  • Stabilizing an offline first mobile app, that was pretty valuable USP, yet it had major performance and functional issues.
  • The pinnacle is enabling high load clients to use the app, and decreasing the sync time by a matter for 400% percent. This includes work on the Backend and Frontend
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Openspot

CTO

Categories

Work Experience : 2021-2022

Performed as a Technical Co-Founder to translate desires into actionable points, and prioritize by necessity. Designed an Architecture to base on the software and collaborated with a Product Designer to build high fidelity Wireframes and prototypes

  •  Assembled a Team of 5 Developers to work on hybrid apps
  • Collaborated with a dedicated Machine Learning specialized team and complete follow-up to look out for Team Motivation and spirit.
  • Organized 1-on-1 sessions and task boards and maintained the product board
  • Made decisions to optimize result over quality and maintained a high level of communication and transparency
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Heyjobs

Consultant Senior Software Engineer

Categories

Work Experience : 2020-2021

Worked alongside B2B platform, improved and optimized code-base. Served as a knowledge transition base from one team to a fresh team.

  • Improved Product Quality
  • Worked on the B2C platform, and develop an in-house GDPR-compliant tracking solution
  • Completed performance improvements for the first render and Bundle Splitting and optimization
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Etergo

Lead Developer/Team Lead

Work Experience : 2018-2020

Worked as a lead and assembled a team of developers varying from 2 to 5 people. This led them to rebuild this website completely for a new identity. In this leadership position, he managed the marketing and engineering teams and communicated the issues and progress to the CEO (Stakeholder).

  • Built a crowd-funding platform that managed to process over €1.5m
  • Built an automotive configurator
  • Adopted GDPR Compliance as of the freshly imposed regulations
  • Setup & Configured CI/CD, setup Error Tracking
  • Orchestrated Agile Ceremonies

 

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Previous Roles

Categories

Work Experience : 2011-2017
  • Front-End Developer at YoungCapital (2016-2017)
  • Front-End Developer at Potato (2016)
  • Developer at Flosites (2014-2016)
  • UI Developer at Endava (2013-2014)
  • IT Department / UI Developer at Coca-Cola HBC (2011)

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