Iván Sánchez Valencia Email & Phone Number

Andalusia, Spain

Spain

[10/2022 - 12/2023]Alexandria Team (Data Engineering).- Led the design and implementation of new features for our packages, codebase, and deployment pipelines.- Creating tasks, prioritizing them effectively, and aligning them with our OKRs, objectives, and business needs.- Mentored and guided colleagues in two different teams, providing knowledge on software design, testing methodologies, and best practices.- Oversaw and helped design our Data Science's projects deployment strategies.- Worked closely Data Quality engineers, to design their CI/CD pipelines and development flow, had to improve our company stack to accommodate.- Collaborated with Staff engineer for a company wide documentation strategy, and infrastructure to unify all repositories' documentation into a single, company available 'documentation store'- Designed and implemented a new Data QA framework, making the lives of our data Q/A team easier.- Honestly more stuff that I've forgotten, read previous entry.

[06/2022 - 10/2022]Asgard Team (Data Acquisition)Consultant turned direct hire responsible for software/infrastructure design. Tasked to create a new data acquisition team, including a Product Owner, Team Lead, Architect, and Software Engineer. Built the foundations of a new product, with plans to expand the team with Data Engineers, Data Analysts, QA Engineers, and others.- Exceeded the team's OKRs by a factor of 5, earning top-level executive compliments.- Designed a new micro-services web crawling infrastructure for scalability, ease of use, and extensibility.- Developed code for the first iterations of the product and presented it to key IT stakeholders.- Mentored team members on the relevant technology stack and best practices.- Updated stakeholders on blockers, deadlines, and progress on an ongoing basis.- Created technical tasks, sub-tasks, and managed their completion.- Review and created many PRs (surprise).Tech Stack: Python 3, FastAPI, Azure DevOps, Celery, K8s, Docker, Redis, Scrapy, Custom Anti-crawlers Techniques, RabbitMQ, SQLAlchemy, SQL Server, Azure Blob Storage.

Spain

Joined the data acquisition/processing team as a Python Software Engineering consultant, contributing to various aspects of the team's operations and infrastructure.- Taught colleagues best practices and software design principles in Python.- Guided new joiners in understanding our product, infrastructure and design.- Collaborated in the software design and refactoring of data pipelines using Python, Databricks, and our in-house technologies.- Created new data pipelines into our infrastructure, improving it where to accommodate new requirements.- Maintained and improved in-house Python packages.- Overhauled the entire infrastructure and deployment strategy of our main product, enabling multiple product versions to be deployed on a single environment. This flexibility allowed the team to work on different user stories simultaneously, in the past they had to fight for resources and queue up, delaying development time significantly.- Refactored our CI pipelines, reducing complexity and significantly improving performance. Execution time decreased from 15 minutes to 2-3 minutes, saving hours every week of idle time just waiting for the pipelines to complete.- Conducted a successful 2-month proof-of-concept (POC) project, creating a custom web crawling infrastructure based on Kubernetes (k8s) and microservices. - Reviewed and provided valuable feedback on pull requests (PRs), offered suggestions for improvements, conducted code reviews, and engaged in pair programming sessions.

[06/2021 - 11/2021] Full Stack + Team Lead- Led a team of five developers, create tasks, prioritize them and see them completed.- Regularly met with our clients to update them.- Maintained and updated the IoT backend and Flutter apps, incorporating new features and fixing issues.- Design new infrastructure for backends for new IoT products.[01/2021 - 06/2021] Full Stack Developer- Developed 2 Flutter apps for IoT products for Koolnova/Mitsubishi Heavy Industries, with streaming capabilities, login and IoT control.- Developed and maintained backend for said apps.- Acted as a consultant for the development of a full-fledged Single Page Application (SPA).- Developed custom Dart packages for our apps.- Led the development of custom Vue widgets for our e-Banking clients.Tech: Python3, Django + DRF, Dart (Flutter) + Flutter Redux + Custom Dart packages, Mosquitto, MySQL, Docker, AWS Lightsail + EC + Route53, Vue, Vuex, Vue-router, Bulma.[01/2020 - 01/2021] Backend Developer- Developed and deployed Rest APIs for eCommerce, including custom payment gateways for banks.- Created middle-ware solutions and provided mentorship to new developers transitioning from other programming languages. - Utilized technologies such as Python 3+, Django, DRF, Docker, on-prem servers, and integrated second/third party HTTP APIs. - Implemented Celery, Prometheus, Grafana, RabbitMQ, Nginx, Gunicorn, PostgreSQL, and MariaDB for efficient and reliable backend operations.Tech: Python 3+, Django, DRF, Docker, On-prem servers, Second/Third party HTTP APIs integrations, Celery, Prometheus, Grafana, RabbitMQ, Nginx, Gunicorn, PostgreSQL, MariaDB.