Lucian Văcăroiu, React Developer in Dublin, Ireland
Lucian Văcăroiu

React Developer in Dublin, Ireland

Member since May 23, 2017
Lucian is a highly experienced senior solution architect, full-stack developer, and CTO. His 17 years of professional experience are complemented by a natural tech-leader pragmatic attitude and excellent communication skills, making him a great asset to any company. Lucian's high-level skills include advanced topics like Serverless architecture, modern data mapping design as well as extensive development experience with Node.js, React, and AWS.
Lucian is now available for hire

Portfolio

Experience

  • PHP, 17 years
  • JavaScript, 17 years
  • Node.js, 10 years
  • Software Architecture, 10 years
  • Amazon Web Services (AWS), 10 years
  • Serverless, 5 years
  • React, 5 years

Location

Dublin, Ireland

Availability

Full-time

Preferred Environment

macOS, WebStorm, Docker and AWS C9

The most amazing...

...shift that will dictate the future of the Web and if your company struggles or thrives in this ecosystem in the years to come is, I believe, Serverless.

Employment

  • Lead Software Architect

    2019 - 2019
    Clients (via Toptal)
    • Identified and structured technical requirements based on client RFP detailing functional use-cases and usage-volume predictions.
    • Architected a complete end-to-end microservice-based scalable and high-availability frontend and backend solution based on AWS Serverless services and leveraging open source technologies like React and Node.js.
    • Designed a complete system architecture and technology orchestration for large-scale performance as well as optimal operation cost.
    Technologies: Node.js, React, AWS, Serverless, Lambda, DynamoDB, Aurora, CodePipeline,
  • Senior React Developer

    2019 - 2019
    Alteryx (via Toptal)
    • Analyzed and identified key architectural pain points in the client's legacy codebase (details undisclosed due to strict confidentiality agreement).
    • Analyzed and identified key architectural pain points in the client's legacy codebase (details undisclosed due to strict confidentiality agreement).
    Technologies: React, Redux, Sagas, Done.js
  • Lead Node.js/React Developer

    2018 - 2019
    Brightsave.se (via Toptal)
    • Architected a complete end-to-end microservice-based scalable and high-availability frontend and backend solution based on AWS services and leveraging open source technologies like React and Node.js.
    • Developed an entire CI/CD pipeline consisting of a complex orchestration of multiple AWS services (including Lambda, API Gateway, DynamoDB, and Aurora) to build, test and deploy several serverless APIs and client apps.
    • Designed and developed several serverless GraphQL APIs with Node.js, leveraging multiple AWS services (including Cognito, Lambda, API Gateway, DynamoDB, and Aurora) to serve as a back-end for multiple client apps.
    • Designed and developed several responsive PWA client apps using a React/Redux/Sagas stack, leveraging AWS Cognito for user authentication and authorization, including authorization and access to the aforementioned GraphQL APIs.
    Technologies: Node.js, React, AWS, Serverless, Lambda, DynamoDB, Aurora, CodePipeline, GraphQL, DevOps
  • Lead React Developer

    2017 - 2017
    Shiparta.com (via Toptal)
    • Developed a React/Redux/Sagas PWA solution to support the client's fine-art shipping-management business. Requirements included consuming a pre-existing JWT-authentication based REST API written in Python, as well as adapting an older UI design to the modern responsive and async requirements of a PWA.
    • Loosely maintained API documentation meant diving into legacy Python code to figure out endpoint architecture and interfaces.
    Technologies: React, Redux, Sagas, Python
  • Lead React Developer

    2017 - 2017
    Moment Studios (via Toptal)
    • Developed a React/Redux/Sagas PWA solution to support the client's mobile app with Instagram-like functionality. Requirements included consuming a pre-existing JWT-authentication based REST API.
    • Developed an independent PWA solution to act as a back-office/administration interface that the client's employees would use to moderate user content.
    • Got up to speed quickly, self-managed and kept the project on track with minimal project specifications.
    Technologies: React, Redux, Sagas, Google Firebase
  • Freelance Consultant

    2011 - 2017
    Freelance Consultant
    • Refined back-end code for Green Horse Games` MVP, a browser-based racing game, on the heels of their round A.
    • Implemented 2Parale Affiliate Network's long-term DevOps and SysOps strategies as well as consulted on expanding their tech team and development efforts.
    • Designed and developed the first local/regional cashback platform.
    • Designed and developed a complete PWA solution based on a purely-mathematical model for statistical analysis of the European secondhand auto market, the goal of which being to estimate a fair purchase price and life-time maintenance cost of any make and model vehicle purchase.
    • Designed and developed a multi-campaign tracking system for mobile-app user-acquisition with Facebook Ads and the Facebook Ads API for mavenhut.com.
    • Designed and implemented a web-based A/B testing solution, for PPC and PPV ad campaigns, based on a mathematical model for statistical significance, for Affiliate Window Ltd.
    • Supported a large PowerMTA mass-mailing infrastructure (responsible for over 10% of global email traffic) for an ad agency in the affiliate marketing space (contract forbids me from disclosing the company name or any more details).
    Technologies: Node.js, React, AWS, Serverless, Lambda, DynamoDB, Aurora, CodePipeline, DevOps, Ruby on Rails, PHP, MySQL, PowerMTA
  • CTO

    2009 - 2011
    eRepublik Labs
    • Responsible for overall staffing strategy as well as day to day technical operations, including managing the supporting technical and financial infrastructure necessary to support a team of roughly 30 people.
    • Initiated and lead the effort to architect and implement what were, at the time, bleeding-edge DevOps strategies (DevOps was a little known buzz-word back then).
    • Helped the company transition its flagship product, a browser-based MMO, into the modern age and support a fast-expanding user base, on the heels of their series A funding.
    Technologies: Ruby on Rails, LAMP, DevOps, MySQL Clustering, IBM WebSphere

Skills

  • Languages

    SQL, GraphQL, HTML, CSS, ECMAScript (ES6), ES7, SCSS, JavaScript, PHP, Ruby, Gremlin
  • Frameworks

    React Native, Ruby on Rails (RoR), Bootstrap, Redux, Flux, Express.js, Jest, Electron.js
  • Libraries/APIs

    React, Node.js, jQuery, REST APIs
  • Tools

    Git, Terraform, Webpack, Ansible, Travis CI, Jenkins
  • Paradigms

    REST, Responsive, Continuous Integration (CI)
  • Platforms

    Docker, Amazon Web Services (AWS)
  • Storage

    MongoDB, MySQL, AWS DynamoDB, NoSQL
  • Other

    Serverless, Data Architecture, Software Architecture

Education

  • Completed credits towards a master's degree in Business Adminstration
    2003 - 2005
    Hyperion University - Bucharest, Romania

To view more profiles

Join Toptal
I really like this profile
Share it with others