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Arnau – Python, AWS, FastAPI, experts in Lemon.io

Arnau

From Spain (GMT+2)

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Full-stack Web DeveloperSenior
Hire developer
11 years of commercial experience
Communications
Cryptocurrency
Fintech
Fundraising
Healthcare
Healthtech
Hospitality
Printing
Retail
Social media
Tourism
Travel
AI software
Broadcasting software
CMS
Collaboration tools
Communication tools
Enterprise software
Lemon.io stats
1
projects done
280
hours worked
Open
to new offers

Arnau – Python, AWS, FastAPI

Arnau is a seasoned software engineer with extensive experience in Python and React, spanning over a decade. His proficiency extends to other programming languages like Python and Go, showcasing his versatility and adaptability. Arnau's proactive approach, coupled with his wealth of experience, positions him as an invaluable addition to any team, whether as an engineer, Tech Lead, or potential CTO.

Main technologies
Python
10 years
AWS
5 years
FastAPI
5 years
Django
10 years
React
1 year
Vue.js
0.5 year
Additional skills
Terraform
Golang
SCSS
Kafka
HTML
PostgreSQL
React Native
Microsoft Azure
WebRTC
PayPal Api
Twilio API
Stripe API
CSS
HTML/CSS
Typescript
AWS Lambda
Serverless Computing
DynamoDB
MongoDB
AI
Auth0
Golang REST API
JWT
Tailwind CSS
Celery
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

CTO
May 2023 - Ongoing1 year 1 month
Project Overview

As part of the first batch of hires for the start-up, Arnau joined a team of eight as a Lead Software Engineer to help build stock market and cryptocurrency tools for automated live trading, backtesting, and optimization. He helped the company to professionalize their tools from prototypes into production-ready products with languages like Golang, Python, and TypeScript deployed on AWS with IAC through Terraform. After three short months, he was promoted to Chief Technology Officer, through which he continued to help the company translate business needs into technical requirements and set the foundations required for the company to grow.

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Responsibilities:
  • Pioneered Automated Trading Tools: Developed sophisticated stock market and cryptocurrency tools for live trading, backtesting, and optimization.
  • Professionalized Software Tools: Transformed prototypes into production-ready products using Golang, Python, TypeScript, and AWS, enhancing the company's technological capabilities.
  • Promoted to Chief Technology Officer: Quickly advanced to a leadership role, translating business needs into technical requirements and laying the groundwork for the company's growth.
Project Tech stack:
Typescript
React
AWS
Terraform
Python
FastAPI
Golang
Golang REST API
JWT
Auth0
Vue.js
Tailwind CSS
CTO, Co-founder
Feb 2022 - Ongoing2 years 3 months
Project Overview

Together with two partners, launched a startup in healthcare. At Dentalpic, Arnau is helping build a product to give users an instant overview of the health of their mouth by taking a few pictures and passing them through Dentalpic's AI image analysis engine.

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Responsibilities:
  • Launched a Healthcare Startup: Co-founded Dentalpic, a startup revolutionizing oral health diagnostics using AI image analysis.
  • Led Product Development: Utilized TensorFlow, Python, Golang, and MongoDB in developing a user-friendly product for instant oral health assessments.
  • Established Productive Engineering Teams: Built the foundation for efficient and effective engineering teams, contributing to the startup's rapid progress.
  • Organized Fundraising Efforts: Actively participated in fundraising activities, securing the financial resources needed for startup growth.
Project Tech stack:
Python
Golang
AWS
Terraform
FastAPI
Django
AI
MongoDB
DynamoDB
Tailwind CSS
Senior Software Engineer
Feb 2023 - May 20233 months
Project Overview

A very large company with over six thousand employees that helps deliver paper products to millions of people around the world. They made heavy use of microservices built with TypeScript with Serverless and React on AWS lambdas.

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Responsibilities:
  • Led the Development of Scalable Microservices: Spearheaded the design and implementation of robust microservices using TypeScript, significantly enhancing the delivery and scalability of the software architecture.
  • Pioneered Serverless Architecture on AWS: Innovated in the deployment of serverless computing using AWS Lambdas, ensuring high availability and cost-effective scaling of the physical product delivery systems.
  • Enhanced Global Product Delivery Systems: Played a pivotal role in developing software crucial for the global distribution of paper products, reaching millions of customers worldwide.
  • Improved Performance with React-Based Solutions: Utilized React for front-end development, improving user interfaces and enhancing the overall customer experience.
  • Managed Temporary Workforce Integration: Successfully integrated as a freelancer into the physical product team, contributing effectively to the team's objectives during high-demand periods.
  • Drove Business Growth in Physical Product Sector: Directly contributed to the expansion of the company's physical product business through strategic software development and implementation.
  • Optimized Software for High Traffic Loads: Focused on writing software optimized for handling high volumes of user traffic and product orders, ensuring reliability and efficiency.
  • Collaborated Across Large Teams: Effectively collaborated in a large organization with over six thousand employees, contributing to cross-functional teams and projects.
Project Tech stack:
Typescript
Serverless Computing
React
AWS Lambda
Senior Software Engineer
Mar 2022 - Feb 202311 months
Project Overview

A product that allows people to reach out to their contacts at the right time, with the right context. Arnau joined an already mature project to help it scale and be ready for mass release.

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Responsibilities:
  • Scaled Mature Projects: Assisted in scaling a mature product for mass release, focusing on backend engineering.
  • Enhanced System Robustness: Strengthened existing systems to support growing traffic and user demand.
  • Optimized Development Processes: Utilized Python & FastAPI on AWS & Terraform, implementing CI pipelines for rapid and reliable service delivery.
  • User value-focused development: Focused on user experience and user value throughout the development process.
Project Tech stack:
FastAPI
Python
AWS
Terraform
Senior Software Engineer
Nov 2019 - Feb 20222 years 3 months
Project Overview

A webRTC solution for a social video startup. Services were built on AWS infrastructure, using CI pipelines for iterative development, and were designed to be fault-tolerant and self-healing.

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Responsibilities:
  • Architected WebRTC Solutions: Designed and implemented microservices for a social video startup, facilitating user-coach interactions.
  • Managed High Traffic Growth: Supported 2 million streamed minutes with a weekly 10% growth in traffic through services mainly coded in Golang & Python.
  • Developed Comprehensive Technical Infrastructure: Built the technical foundation for the startup, including mobile apps, ensuring fault tolerance and self-healing capabilities.
Project Tech stack:
Golang
AWS
Django
Kafka
WebRTC
Twilio API
Stripe API
PayPal Api
Microsoft Azure
React Native
React
Tailwind CSS
Senior Software Engineer
Sep 2016 - Nov 20193 years 2 months
Project Overview

Foundational software for prototypes and launches of new businesses in the hotel and travel industries in a variety of tech stacks (Python, Golang, PHP & others). He worked as a technical account manager to develop a wide variety of technical solutions to different challenges.

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Responsibilities:
  • Developed Software for New Business Ventures: Created foundational software for startups in the hotel and travel industries using diverse tech stacks.
  • Served as Technical Account Manager: Addressed various technical challenges, delivering tailored solutions across multiple projects.
  • Leadership: Led a 12-person team that became the most profitable team in the entire company.
Project Tech stack:
Django
AWS
Python
HTML
CSS
SCSS
Terraform
React
Tailwind CSS

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