Walter T.

Senior Backend Developer

Walter is a seasoned Senior Backend Developer boasting a rich twelve-year tenure in the commercial realm. His expertise spans a diverse range of technologies, including Python, Django, JavaScript, Redis, REST API, PostgreSQL, MySQL, and Node.js.

With a strong grounding in Scrum and Agile methodologies, Walter brings a structured approach to project management. One of his standout projects involved the development of a data pipeline at TrustYou, facilitating the extraction of reviews from platforms like Google Maps and TripAdvisor.

Walter is distinguished by his practical problem-solving approach, which has consistently positioned him as a dependable asset within project teams.

Principale expertise

  • Django
    Django 10 ans
  • Golang
    Golang 3 ans
  • JavaScript
    JavaScript 6 ans

Autres compétences

  • Vue.js
    Vue.js 2 ans
  • MongoDB
    MongoDB 2 ans
  • AWS Lambda
    AWS Lambda 2 ans
Walter

Walter T.

Mexico

Commencer

Expérience sélectionnée

Emploi

  • Senior Software Engineer

    Solvd Inc. / Nerdwallet Inc - 2 années

    Designing and implementing microservices using Python, Flask, FastAPI, Go, AWS SQS/SNS, DynamoDB, Lambda, PostgreSQL, CI/CD, Docker, Kubernetes and other technologies. Optimizing Performance and Monitoring: Streamline operations and enhance service efficiency by fine-tuning performance metrics and implementing comprehensive monitoring systems using Datadog, Sentry, ELK Stack (Elasticsearch, Kibana, Logstash), Codefresh and other internal tools.

    Les technologies:

    • Les technologies:
    • MySQL MySQL
    • PostgreSQL PostgreSQL
    • AWS AWS
    • Golang Golang
    • Django Django
    • Flask Flask
    • Microservices
    • Jenkins Jenkins
    • Python Python
    • AWS SQS AWS SQS
    • SQL SQL
    • Unit Testing
    • Apache Airflow Apache Airflow
    • Snowflake Snowflake
    • FastAPI FastAPI
    • SQLAlchemy SQLAlchemy
    • Pytest Pytest

  • Backend Engineer

    Uber - 1 an 6 mois

    • Designed and created a new API workflow to replace the Cornershop merchant self-onboarding.
    • Developed, implemented, and maintained backend microservices that directly power the UberEats app's storefront, store search, and individual item view.
    • Created and executed backend experiments (XPs) to assess the impact of changes and optimize conversion rates, with improvements ranging from 5% to 12%.

    Les technologies:

    • Les technologies:
    • PostgreSQL PostgreSQL
    • Golang Golang
    • Django Django
    • Microservices
    • Python Python
    • SQL SQL
    • Unit Testing
    • gRPC gRPC
    • Hadoop Hadoop
    • Pytest Pytest
    • Celery Celery

  • Software Engineer

    BairesDev - 3 mois

    • Contracted by a SaaS platform that helps customers monitor their cloud usage
    • Contributed to refactoring the notifications app architecture
    • Provided a more robust platform for microservices to interface
    • Reduced timeout errors by 30%
    • Increased average open rate by 22%.

    Les technologies:

    • Les technologies:
    • AWS AWS
    • Django Django
    • SQL SQL
    • Unit Testing
    • Pytest Pytest
    • Celery Celery
    • CircleCI CircleCI

  • Senior Software Engineer

    TrustYou GmbH - 2 années 5 mois

    • Led creation, maintenance, and enhancement of web scrapers, boosting data accuracy, efficiency, and main product uptime SLA by about 20%.
    • Automated critical components of a large data pipeline used to process millions of reviews daily, ensuring its efficiency and stability.
    • Developed features that impacted company OKRs directly, such as reduced scraped data TTL to production, reduced pipeline execution time, churn prevention, and revenue increase.
    • Successfully migrated key features of the legacy codebase from Python 2.7 to Python 3.9+, improving the platform's reliability and future scalability.
    • Participated in the architectural decisions of the main project, data pipeline.

    Les technologies:

    • Les technologies:
    • MySQL MySQL
    • PostgreSQL PostgreSQL
    • AWS AWS
    • Redis Redis
    • Python Python
    • SQL SQL
    • Selenium Selenium
    • Unit Testing
    • Scrapy Scrapy
    • Hadoop Hadoop
    • Pytest Pytest

  • Software Engineer

    Freelance - 6 années 5 mois

    • Collaborated with diverse clients from North America and Europe, fostering a global perspective and adaptability in cross-cultural teams, working under Agile methodologies.

    • Partnered with NK News, a prominent news agency, to conceive and sustain web scrapers for their news aggregator platform. Successfully overcame intricate challenges involving reverse engineering and anti-scraping countermeasures, particularly for websites from China and North Korea. E

    • Played a pivotal role at Sandos, a hotel chain, by enhancing their CRM system

    • Developed innovative features that use async operations, improving reliability and increasing efficiency.

    • Achieved and maintained Top Rated and 100% satisfaction rate status for over four years

    Les technologies:

    • Les technologies:
    • Flask Flask
    • SQL SQL
    • Google Cloud Google Cloud
    • Pandas Pandas
    • Hadoop Hadoop
    • Pytest Pytest
    • Celery Celery

  • Software Developer, Python

    DEIPI - 1 an

    • Developed features for a social networking web application.

    • Contributed to web application development and integrated third-party APIs.

    Les technologies:

    • Les technologies:
    • SQL SQL

  • Java Developer

    KainoSoft IT Consulting - 6 mois

    • Focused on Java-based web application development and database integrations.

    Les technologies:

    • Les technologies:
    • Spring Spring
    • SQL SQL

  • Java Developer

    CPLADE - 2 années 6 mois

    • Built Java based applications for a government institution's budget planning.

    • Focused on Java-based web application development and database integrations.

    Les technologies:

    • Les technologies:
    • SQL SQL
    • Crystal Reports Crystal Reports

Éducation

  • License ès sciencesComputer Science

    Morelia Institute of Technology · 2008 - 2012

Portefeuille

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