Manuel is available for hire

Manuel Víctor Santos López

Verified Expert in Engineering

Full-stack Developer

Location

Brussels, Belgium

Toptal Member Since

August 30, 2022

Manuel is a software engineer with 20 years of professional experience as a full-stack developer, product designer, systems architect, and machine learning engineer. He's an autonomous, self-motivated, and curious person. As a developer, he's pragmatic and proficient in many programming languages, including functional, declarative, reactive, and object-oriented paradigms.

Python React Node.js TypeScript Next.js Linux Java SQL CSS Kotlin Amazon Web Services (AWS)jQuery Jupyter TensorFlow PyTorch CTO

Portfolio

Litto

Python, PyTorch, MongoDB, Pandas, NumPy, Scikit-learn, Docker, Kubernetes...

European Commission, DIGIT

React, TypeScript, Kotlin, Java, Spring, Angular, Oracle, HTML...

European Commission, DG EMPL

React, JavaScript, TypeScript, Java, Oracle, XML, CSS, Agile, HTML, Management...

Experience

Python - 20 years Node.js - 6 years React - 6 years TypeScript - 5 years Kotlin - 5 years TensorFlow - 4 years PyTorch - 3 years Next.js - 2 years

Availability

Part-time

Preferred Environment

Python, TypeScript, Kotlin, Artificial Intelligence (AI), Web UI, Unix, Amazon Web Services (AWS), React

The most amazing...

...project I've participated in is designing and implementing an application for the organization of experts' meetings at the European Commission.

Work Experience

Machine Learning Engineer

2021 - PRESENT

Litto

Implemented a deep representation model for job matching using contrastive learning.
Implemented a training pipeline for testing different model architectures and hyper-parameters using PyTorch.
Integrated the model in the current job-matching infrastructure in AWS.

Technologies: Python, PyTorch, MongoDB, Pandas, NumPy, Scikit-learn, Docker, Kubernetes, FastAPI, HTML, Management, Amazon Web Services (AWS), APIs, CSS, Vue, Jupyter

Senior Software Architect

2017 - 2021

European Commission, DIGIT

Initiated, designed, and developed a corporate web application using React, Java, Spring, and Oracle for organizing expert meetings and claiming expenses. This application is now the corporate solution for managing all experts' meetings in the EC.
Developed a web application using Angular, Kotlin, Spring, and MySQL to manage and reimburse expenses claims for job candidates at the European Commission.
Integrated the meeting organization functionalities of AGM into the mobile portal of the Payment Management Office of the EC.

Technologies: React, TypeScript, Kotlin, Java, Spring, Angular, Oracle, HTML, Amazon Web Services (AWS), APIs, CSS, Jupyter

Senior Software Architect | Full-stack Developer

2007 - 2017

European Commission, DG EMPL

Developed and maintained several grant management web apps using JEE, Spring, JavaScript, Oracle, and XML. Their scope comprises the grant management lifecycle, including publication, evaluation, budget assessment, financing, follow-up, and audit.
Developed a portal for the publication of grants integrated with other systems through a REST API.
Analyzed and designed an application for the reimbursement of meeting expenses claims that eventually became the official corporate solution in the EC.

Technologies: React, JavaScript, TypeScript, Java, Oracle, XML, CSS, Agile, HTML, Management, Amazon Web Services (AWS), APIs, jQuery

CTO | Software Architect

2005 - 2007

Tractis

Co-funded Tractis, a company with the goal of making contracts and digital signatures accessible to everyone. After raising seed funding, I became its first CTO, being responsible for the development, operations, and successful product launch.
Coordinated a team of 5–10 developers while participating in the product design and development of the application.
Put in production the system in record time (six months).

Technologies: Ruby on Rails (RoR), MySQL, JavaScript, Java, XML, Spring, HTML, APIs, CSS, jQuery

Full-stack Developer

2002 - 2006

Telefónica

Contributed to the ODIN project, a large B2B web application critical to the Telefonica Spain business.
Migrated the application server from JRun to the SunONE application server.
Integrated the with several external systems using primitive web service technologies.

Technologies: Java, Jakarta Server Pages (JSP), JavaScript, CSS, Oracle, Python, Bash Script, HTML

Experience

Web Application for Meeting Management

A web application for organizing experts' meetings. It comprises drafting the list of invitees, sending the invitations by email, confirming attendance, verifying attendance, submitting expenses claims, and automatic payment. The application consists of a front office and a back office, and it became the corporate solution for these tasks.

Skills

Languages

TypeScript, Python, JavaScript, HTML, Kotlin, Java, SQL, CSS, XML, Bash Script

Frameworks

Next.js, Spring, Angular, Ruby on Rails (RoR), Jakarta Server Pages (JSP)

Libraries/APIs

React, Scikit-learn, Node.js, TensorFlow, PyTorch, jQuery, Pandas, NumPy, Vue

Other

APIs, Artificial Intelligence (AI), Web UI, FastAPI, Programming, Algebra, Calculus, Electronics, IT Project Management, Robotics, IT Projects, Industrial IT, Computer Vision, Computer Graphics, Compilers, Machine Learning

Tools

Jupyter, Jira

Paradigms

Management, Agile

Platforms

Linux, Unix, Amazon Web Services (AWS), Oracle, Docker, Kubernetes

Storage

MySQL, MongoDB

Education

1999 - 2002

Engineer's Degree in Computer Engineering

Valladolid University - Valladolid, Spain

1994 - 1999

Engineer's Degree in Computer Engineering

Valladolid University - Valladolid, Spain

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