Alin Dragos Lacea, Developer in Graz, Austria
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Alin Dragos Lacea

Verified Expert  in Engineering

Software Developer

Location
Graz, Austria
Toptal Member Since
September 4, 2016

Alin is an experienced full-stack JavaScript and Python developer focusing on flexibility and maintainability. He won't settle for any solution and always strives for the best. He greatly enjoys new challenges. He has a background in scalable, full-stack web apps with various technologies, including other languages, and values clear communication and jobs done right.

Portfolio

Retainit
JavaScript, React, Node.js, Google Cloud Platform (GCP), MongoDB, Firebase...
RenaissanceRe
Python, Docker, CI/CD Pipelines, Ansible, Kubernetes, DevOps, Tornado, MongoDB...
kununu GmbH
Express.js, Node.js, Pact, JavaScript, Web Development, SaaS, Testing, APIs...

Experience

Availability

Full-time

Preferred Environment

Linux, Docker, Cloud, Python, JavaScript, Node.js, Next.js

The most amazing...

...thing I've done is reduce costs in a transactional message system by around 50% via architecture redesign and migration from SQL funnels to FSM.

Work Experience

Technical Lead

2021 - 2022
Retainit
  • Established a core technical team and defined workflows and processes.
  • Redesigned the application's architecture and codebase for improved scalability and performance.
  • Conducted hiring interviews and led technical decisions following business goals.
  • Developed a Chrome extension for launching contextual quizzes directly from a YouTube page or arbitrary articles from selected publishers.
  • Worked on the integration with Chat-GPT3 for keyword extraction, content summary, and quiz generation.
  • Designed and implemented a 3rd-party API integration for transactional email messaging.
  • Designed DevOps processes for automated deployments with GCP, GitHub Actions, and Firebase hosting.
  • Redesigned No-SQL data structure to simplify and efficiently extract the required information.
Technologies: JavaScript, React, Node.js, Google Cloud Platform (GCP), MongoDB, Firebase, OpenAI, DevOps, Express.js, Docker, Redis, BigQuery, Cloud Computing, System Architecture, Architecture, Web Development, Technical Leadership, Software Architecture, Full-stack Development, Minimum Viable Product (MVP), SaaS, Full-stack, Web Architecture, Serverless, CSS, HTML, Cloud, Cloud Services, APIs, API Integration, GraphQL, TypeScript, OpenAI GPT-3 API, ECMAScript (ES6), OpenAI GPT-4 API, Back-end, ChatGPT, REST, REST APIs, NoSQL, CTO, Mobile Apps, HTML5, Single Sign-on (SSO), Google Sign-in, Software Design

Senior Software Engineer

2019 - 2022
RenaissanceRe
  • Developed a tool for the SSDLC processes that scans internal projects for vulnerable dependencies and cross-references them with the CVSS database.
  • Dockerized and migrated core risk modeling processes to Kubernetes.
  • Developed Ansible Playbooks for scalable and consistent container deployment on-prem.
  • Ported core risk modeling services and internal libraries from Python 2 to Python 3.
Technologies: Python, Docker, CI/CD Pipelines, Ansible, Kubernetes, DevOps, Tornado, MongoDB, Cloud Computing, System Architecture, RabbitMQ, Testing, Serverless, HTML, Cloud, Cloud Services, APIs, API Integration, Back-end, REST, REST APIs, AWS Lambda, Celery, Message Queues

Node.js Engineer

2017 - 2018
kununu GmbH
  • Designed code architecture for scalable Backends for Frontends (BFF).
  • Enabled the migration from a monolithic app structure to microservices.
  • Improved code coverage and testability using Pact.
Technologies: Express.js, Node.js, Pact, JavaScript, Web Development, SaaS, Testing, APIs, ECMAScript (ES6), Back-end, REST, REST APIs

Senior Software Engineer

2016 - 2018
PageFair
  • Created and improved detection algorithms for ad-blocking browser extensions.
  • Improved the client-side ad restoration rate for ad-blocking extension users.
  • Ensured server connectivity as a critical product feature.
  • Conducted extensive research on browser extension permissions and behavior.
  • Led the implementation team in product innovation projects, from the research phase to designing and creating prototypes.
  • Designed and implemented full-stack software architecture for production-ready premium products.
Technologies: Amazon Web Services (AWS), Terraform, SaltStack, Docker, Django, Node.js, JavaScript, DevOps, Python, Express.js, Redis, Cloud Computing, System Architecture, RabbitMQ, SQL, PostgreSQL, Architecture, Web Development, Technical Leadership, Software Architecture, Full-stack Development, SaaS, Full-stack, Web Architecture, Testing, CSS, HTML, Cloud, Cloud Services, APIs, ECMAScript (ES6), Back-end, NoSQL, HTML5, Software Design, Message Queues

Full-stack Developer

2017 - 2017
DemonWare
  • Developed a React app from scratch, enabling game server overview and management.
  • Created Django back-end-for-front-end architecture and infrastructure.
  • Set up base development workflow and processes for the newly found full-stack team.
Technologies: JavaScript, React, Django, Docker, HTML5

Lead Developer

2014 - 2016
Vibetrace
  • Redesigned the system architecture for increased scalability and reliability.
  • Implemented a product recommendation service using Elasticsearch and BigQuery.
  • Increased API throughput capabilities and resiliency.
  • Designed new server security procedures and infrastructure.
  • Integrated monitoring tools (Graphite and Kibana) for performance tracking.
  • Ported the whole codebase from Node.js to Python and improved microservices deployment automation.
  • Designed a user segmentation and transactional messaging system.
Technologies: Amazon Web Services (AWS), NGINX, Elasticsearch, MongoDB, Redis, Python, DevOps, Tornado, BigQuery, Cloud Computing, System Architecture, Architecture, Web Development, Technical Leadership, Software Architecture, Full-stack Development, SaaS, Full-stack, Web Architecture, HTML, Cloud, Cloud Services, APIs, API Integration, Back-end, REST, REST APIs, NoSQL, CTO, Flask, Azure, Message Queues

Vibetrace

A marketing solution for world-wide online retailers. We provide personalized content delivery focused on e-shop customers, including email marketing, behavioral targeting, personalization, and product recommendations.

AmILab

Ambient Intelligence Laboratory: A research laboratory that manipulates the room environment based on user position and activity.

MAMMA

Computer-aided detection software for identifying possibly malignant tissue in MRI scans for cancer patients.

Languages

JavaScript, Python, ECMAScript (ES6), HTML, CSS, SQL, HTML5, GraphQL, C#, TypeScript

Frameworks

Express.js, JSON Web Tokens (JWT), Unity3D, Django, Next.js, Flask, AngularJS

Libraries/APIs

React, Node.js, REST APIs, React Redux, Bottle.py, OpenCV, Facebook SDK, Facebook API, Google API

Paradigms

REST, DevOps, Web Architecture, Testing, Automation

Other

Scalability, Software Development, Web Development, Full-stack Development, Full-stack, APIs, Back-end, AWS Cloud Architecture, Load Balancers, Graphite, Tornado, Cloud, System Architecture, Cloud Computing, CI/CD Pipelines, Architecture, Technical Leadership, Software Architecture, Minimum Viable Product (MVP), SaaS, Serverless, Cloud Services, API Integration, OpenAI GPT-3 API, OpenAI GPT-4 API, Message Queues, Chrome Extensions, Artificial Intelligence (AI), Systems, OpenAI, Pact, CTO, Mobile Apps, Single Sign-on (SSO), Google Sign-in, Software Design

Tools

SaltStack, Terraform, RabbitMQ, Amazon Elastic Container Registry (ECR), uWSGI, Kibana, NGINX, BigQuery, AWS CloudFormation, Node-RED, Ansible, Fluentd, Amazon Simple Email Service (SES), ChatGPT, Celery

Platforms

Docker, Amazon EC2, Amazon Web Services (AWS), Google Cloud Platform (GCP), Firebase, AWS Lambda, Linux, Azure, Kubernetes

Storage

MongoDB, Elasticsearch, Redis, NoSQL, PostgreSQL

2012 - 2014

Master's Degree in Artificial Intelligence

Polytechnic University of Bucharest - Bucharest, Romania

2008 - 2012

Bachelor's Degree in Automatic System Engineering

Polytechnic University of Bucharest - Bucharest, Romania

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