I worked as technical principal and data engineer within a team building data products for the configuration management domain of one of the leading healthcare organisations. Some of the tasks I helped with:
<ul>
<li>Design and build configuration management data products within the Data Mesh.</li>
<li>Design, execute and evolve an effective technical strategy.</li>
<li>Promote effective Data Mesh implementation practices and ensure quality is built-in into the solution.</li>
<li>Apply modern software engineering practices to data systems.</li>
<li>Implement data quality checks and data observability with Montecarlo and dbt tests.</li>
<li>Conduct effective performance reviews and grow the next generation of technical leaders.</li>
<li>Work with other system and data architects to support the evolution of the system architecture and facilitate the discussions to set the technical direction for the data teams.</li>
<li>Effectively collaborate with product and business stakeholders to deliver data products that provide valuable insights to the business.</li>
<li>Support data product owners in defining SLOs and data product characteristics based on user needs.</li>
<li>Collaborate with the data platform team to suggest and design platform improvements to foster the developer experience.</li>
<li>Participate in data governance discussions.</li>
</ul>

Building data products for a healthcare Data Mesh

I worked as a lead consultant within a team in charge of assessing the data architecture for one of Thoughtworks clients. Some of the tasks I helped with:
<ul>
<li>Analyse current as-is data architecture.</li>
<li>Interview the client's data engineers and data leaders to gather information about current state.</li>
<li>Facilitate workshops to gather information about current pain points in the architecture and brainstorm possible solutions.</li>
<li>Propose to-be data architecture that will address current pain points and scalability issues.</li>
<li>Showcase the assessment results to the client's stakeholders.</li>
</ul>

Data architecture assessment

I worked as technical lead in a data engineering team in charge of building an analytics data product. The solution generates insights on usage KPIs for a diabetes management platform. Some of the tasks I helped with:
<ul>
<li>Build ETL data pipelines with Spark/Scala/AWS EMR.</li>
<li>Build ELT data transformations with dbt/SQL in AWS Redshift.</li>
<li>Adopt Redshift Spectrum and materialized views to optimize performance.</li>
<li>Support the growth and impact of team members via 1-1s.</li>
<li>Manage relationships with other teams and key stakeholders.</li>
<li>Work with the data architect to modernise client's data ingestion architecture.</li>
<li>Work with data analysts to optimise the data model for an embedded business intelligence dashboard in Tableau.</li>
<li>Support the operations team responsible for data quality, data observability and reliability. Ensuring incidents and outages were mitigated appropriately.</li>
<li>Define and lead a proof of concept to assess the technical feasibility of providing an embedded analytics solution to the end-users of the platform.</li>
<li>Managing and prioritising technical debt.</li>
<li>Generate synthetic test data with ScalaCheck.</li>
<li>Foster a continuous learning environment by establishing sessions where team members can share what they learned.</li>
</ul>

Healthcare KPIs data product

I worked as technical lead for a small team developing a lead generation engine for one of the leading platforms in the real estate market. Some of the tasks I performed:
<ul>
<li>Bringing a solid software engineering mindset and practices to the team.</li>
<li>Evolve the architecture of the system and design an integration strategy with the company's CMS.</li>
<li>Work with the head of engineering to contribute to company-wide technical initiatives.</li>
<li>Help the team improve and modernize the architecture of the frontend application built with React/Redux.</li>
<li>Work closely with the product owner to align the technical solution with the different initiatives to meet the cycle OKRs.</li>
</ul>

Lead generation engine for real estate listings

I helped bootstrap a new team to modernize a back-office application that manages sales agent accounts for a company in the green energy sector. I was also responsible for providing advice to their infrastructure team. Some tasks:
<ul>
<li>Provide technical input in the discovery phase of the new features of the platform.</li>
<li>Help the team understand the system's architecture based on several PHP services built with different frameworks.</li>
<li>Guide the team during the first steps of working with an existing frontend application built with Vue/Nuxt.</li>
<li>Advice the client's infrastructure team on best practices about observability and infrastructure as code.</li>
<li>Create a proposal on how the client could scale their infrastructure team to reduce toil and make developers more effective.</li>
<li>Design and implement a proof of concept based on Zipkin to assess the best way to implement distributed tracing across the different microservices.</li>
</ul>

Back office application to manage sales agent accounts

I worked as a technical lead to help one of the biggest airlines in the world to deliver an MVP and build a startup out of it. The project involved the discovery and development of a B2B platform powered by a flight search engine that allows airlines to buy and sell cargo space. Some of the tasks:
<ul>
<li>Lead and facilitate workshops with both business and the technical team to foster alignment.</li>
<li>Lead the implementation and design of an MVP for 500 users from different airlines.</li>
<li>Design and implement data integration strategies with external airline IT systems. Build an ETL pipeline for ingesting airline data using AWS Lambda, S3, and Amazon MQ.</li>
<li>Design and build a search engine using graph database technologies (Neo4J).</li>
<li>Be responsible for the information security practices of the team and promote good techniques like DevSecOps and threat modeling exercises.</li>
<li>Shape the technical vision while assessing and highlighting technical risks.</li>
<li>Help the team mantaing the software quality while being pragmatic to deliver an MVP.</li>
<li>Collaborate with product owner and designer to shape the product vision and manage stakeholder and founder expectations.</li>
<li>Coach and mentor team members to foster their growth.</li>
</ul>

Flight search engine and B2B platform for air cargo startup

I worked as a platform engineer to build a secure site-to-site VPN on the cloud between two big organizations in the UK. The VPN provides a mechanism for these organizations to exchange PII information securely. In my role, I contributed to bringing the platform into production by:
<ul>
<li>Automating the configuration of an off-the-shell VPN product (Sophos UTM) using Python/Pytest. Orchestrating this configuration using Gitlab CI/CD.</li>
<li>Helping train and coach team members on how to do infrastructure as code following continuous delivery practices.</li>
<li>Provide a stable solution by implementing automated test for the Sophos UTM configuration using Pytest.</li>
<li>Helping with communications with a external team through different connectivity testing phases to ensure smooth integration.</li>
<li>Implementing and deploying public key infrastructure with client certificates to comply with security requirements.</li>
</ul>

Site to site VPN on AWS

I went to India as a lead trainer for four months to train 90+ ThoughtWorks new hires from different offices all over the world. Some of the tasks:
<ul>
<li>Lead a group of 4 trainers to ensure effective delivery of the program training objectives.</li>
<li>Facilitating and delivering training sessions and dojos/katas on software delivery best practices like TDD, OOP, Pair programming, Design Patterns, and CI/CD.</li>
<li>Teach new hires effective facilitation techniques for agile ceremonies: Retrospectives, stand-ups, iteration reviews, etc.</li>
<li>Being a coach, mentor and evaluator of new hires while supporting them during the first steps of their professional journey.</li>
<li>Contributing to develop the training program's content and technology, including the program strategy.</li>
<li>Sharing personal experiences and lesson’s learned from over 7+ projects delivered within ThoughtWorks.</li>
</ul>

Lead agile software development trainer

I worked as an infrastructure engineer to build an internal engineering platform on top of AWS for a big company in the UK. The platform enabled delivery teams to leverage cloud-native features so they could focus on building secure and reliable applications in the cloud more quickly and cost-effectively. I helped with:
<ul>
<li>Bringing solid software engineering mindset and practices to the team.</li>
<li>Building a centralised monitoring and alerting solution to enable SRE teams to support live services.</li>
<li>Promoting and helping the team adopt infrastructure as code and Terraform best practices.</li>
<li>Deploying a scalable and reliable proxy solution based on SQUID using Terraform/Packer/Puppet.</li>
<li>Defining and implementing SLI/SLO for several services offered by the platform.</li>
</ul>

Cloud infrastructure platform for government digital teams

I worked as a full-stack engineer to help to evolve a loans assessment platform for the government. In my role, I contributed to bringing the platform into production by:
<ul>
<li>Leading the migration of a SPA to React / Redux / ES6 across several squads.</li>
<li>Coaching and training colleagues in ES6 and functional programming.</li>
<li>Leading the effort to introduce a shared design system and react component library to enable the different teams to deliver UI functionality faster and consistently.</li>
<li>Working across squads to set standards and best practices to scale the frontend codebase.</li>
<li>Extending the functionality of Clojure and Java microservices to support new types of products/loans.</li>
<li>Introducing pipelines as code to enable different teams to create new microservices from templates faster.</li>
<li>Implementing event-driven integration patterns between microservices using RabbitMQ.</li>
<li>Acting as an internal-facing tech lead for one of the teams and helping the team adopt TDD, pair programming, continuous delivery, and feedback practices.</li>
</ul>

Loan assessment platform

I worked as a platform engineer to build a custom PaaS solution for one of the biggest banks in Spain. The PaaS was built using Openshift/Kubernetes and deployed on top of AWS first and then in OpenStack. The goals were to minimize the time to market for the different digital services the bank offers, reduce costs and improve the developer experience. In my role, I contributed to the platform by:
<ul>
<li>Deploying a scalable and reliable Openshift/Kubernetes cluster in AWS using Terraform, Ansible, and ConcourseCI.</li>
<li>Designing and implementing multi-region and multi-AZ network topologies in AWS to meet scalability and resilience requirements.</li>
<li>Deploying a scalable and reliable Openshift/Kubernetes cluster in OpenStack using Terraform, Ansible, and ConcourseCI.</li>
<li>Automation of deployment, infrastructure testing (serverspec), and pipelines as code tasks using Rake and Ruby.</li>
<li>Helping with the design and implementation of a continuous delivery pipeline for infrastructure changes using ConcourseCI.</li>
<li>Advocating for DevOps principles and practices across product and platform teams.</li>
</ul>

Private PaaS for a bank

I worked as an infrastructure engineer to help reduce the gap and bring together the development and platform teams within a program to re-platform and rebuild a digital membership service for a big company in the retail industry.
In my role, I contributed to bringing the platform into production by:
<ul>
<li>Helping with the design and implementation of a continuous delivery pipeline using Jenkins.</li>
<li>Advising and helping the development teams to build self-deployable microservices. Decoupling the apps (Dropwizard) from the platform.</li>
<li>Building a robust and scalable platform on AWS using EC2, S3, CloudFront, RDS, KMS, IAM, ElastiCache, CloudTrail, and other AWS services.</li>
<li>Helping teams implement infrastructure as code and continuous delivery of infrastructure changes using Terraform, Puppet, Packer, and Jenkins.</li>
<li>Advocating for the usage of Terraform modules and clean code.</li>
<li>Improving the deployment of microservices by replacing an unreliable deployment process with AWS CodeDeploy.</li>
<li>Enabling zero down-time deployments and autoscaling of the different services.</li>
<li>Advocating for DevOps principles and practices across product and platform teams.</li>
</ul>

Digital membership cloud platform

I worked as a full-stack developer to deliver a custom mobile web application for a big wholesale retailer. The system was based on a React/Redux stack for the front-end and Spring/Java/Cassandra for the back-end. It helps drivers with the process of delivering goods to customers. Other tasks:
<ul>
<li>Work closely with the client to define the user experience of the MVP.</li>
<li>Implement a mobile-first and responsive UI for the MVP using HTML5 and SASS.</li>
<li>Lead, plan and automate the deployment of the whole system into a Kubernetes cluster using Google Container Engine.</li>
<li>Implementing and operating an infrastructure based on containers (Docker) deployed on Google Cloud. Design the infrastructure to be portable to the client's private cloud.</li>
<li>Automating the build, testing, and deployment of the different apps using GoCD as a continuous delivery tool and Docker container images as build artifacts.</li>
</ul>

Mobile web application and platform

I worked as a full-stack developer to deliver and operate a custom content management system for thoughtworks.com. The CMS, built with a Ruby/Sinatra/Javascript stack, enables content managers and editors from different business areas (marketing, recruitment, sales) to easily inline edit, create and publish heterogeneous content using the same user interface as the company’s website. Other tasks:
<ul>
<li>
Improving ThoughtWorks digital presence by implementing mobile-first designs and empowering editors to create content through rich user interactions (JavaScript, SASS).
</li>
<li>
Drive the adoption of Docker to build local development environments.
</li>
<li>
Drive the migration of the CMS to HTTPs.
</li>
<li>
Integrating third-party services to the platform by consuming external RESTful APIs.
</li>
<li>
Evolving the project automated test suite by implementing unit, integration, functional, and end-to-end automated tests.
</li>
<li>
Managing the project’s cloud infrastructure by automating deployment tasks (Rake, Fabric) and improving configuration management (Puppet, Packer).
</li>
<li>
Enabling continuous delivery by supporting and managing monitoring (collectd and Graphite), logging (logstash and Kibana), and CI/CD tools (GoCD).
</li>
<li>
Improving provisioning, deployment, and build scripts to enable migration from snowflake servers to immutable servers.
</li>
</ul>

At work