Walter T.

Senior Software Engineer in the education industry, focused on backend systems and AI driven products. Primarily working with Golang to build scalable APIs, distributed services, and intelligent learning platforms. Experienced in cloud infrastructure, integrations, and data intensive applications, with a strong focus on reliability, performance, and practical engineering solutions. Comfortable leading technical decisions and collaborating across product, AI, and platform teams.

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.

• 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%.

• 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%.

• 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.

• 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

• Developed features for a social networking web application.

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

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

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

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