Adrian J. Cruz

Software Engineer, Sometimes Speaker, Always a Learner.

Professional Summary

A senior engineer with over 15 years of experience in application development, specialized in backend development & architecture, and relevant experience in Software Development Life Cycles (SDLCs).

Skills

• Functional programming
• TypeScript, Kotlin, Python, Elixir, Erlang, PHP
• MongoDB, PostgreSQL, DynamoDB, MySQL, Redis
• AWS Cloud Services
• Distributed systems
• Data-driven, product oriented leadership
• Observability
• Unix/Linux operating systems
• Backend API development
• Github, git

Experience

7/2022-Present Sr. SWE, Backend, Dashboard, Webflow, San Francisco, CA (Remote)

• Drove the initiative to migrate Site Backup & Restore system to be asynchronous in SQS with Step Functions, enabling 20x larger capacity-sized site restorations for customers
• Co-led the Account Recovery initiative, streamlining customer account recovery processes and reducing Customer Support tickets by 30%
• Led Okta Single Sign-on (SSO) implementation for internal Admin application from project scoping, test & rollout planning, to production delivery, resulting in
  increased productivity & security for over 500 employees by simplifying login for four environments
• Co-led Engineering Backend Guild, a committee to help shape and prioritize backend engineering initiatives
• Oversaw all backend development for the team on technical strategy, system architecture, scalability, and observability
• Prototyped event-driven Kafka framework to parallelize processes with a publisher-subscriber model

3/2021-6/2022 Sr. SWE, Backend, Delivery Experience, Peloton Interactive, New York, NY

• Implemented monitoring & observability best practices across e-commerce teams, adding improved Datadog dashboards for our Python and Kotlin services
• Introduced team on call process for five engineers and engineering manager
• Improved message queueing in SQS with two engineers adding a dead letter queue reducing 30% of errors
• Developed, shipped, infrastructure supporting up to 25k orders per day using Kotlin, Python, gRPC, SQS, Kinesis, Redis, Kubernetes
• Created engineering design docs, runbooks, technical documentation
• Managed Scrum ceremonies (planning, stand-up, grooming, retrospective) for a team of eight partnering with product, cross-functional stakeholders on product requirements docs, feature prioritization

9/2019-3/2021 Sr. Software Engineer, Order Experience, Glossier, Inc., New York, NY

• Led team of six to develop a Cart Service: a serverless backend service built with TypeScript AWS Lambda Functions, DynamoDB, SQS, Kinesis, and API Gateway.
• Spearheaded initiative to implement Afterpay, PayPal, Venmo as payment methods, increasing revenue by 30%.
• Mentored engineers for observability best practices, systems architecture; facilitate code dojos, demos, pairing, and provide learning opportunities for the team.
• Implemented infrastructure as code for cloud infrastructure with AWS Cloud Development Kit (CDK) and PagerDuty, Datadog with Terraform.

7/2015-8/2019 Sr. Software Engineer, Search, Teachers Pay Teachers, New York, NY

• Migrated Search system from CakePHP monolith to a GraphQL API in Elixir with React frontend
• Implemented a Tax API service in Ruby to interact with Avalara
• Mentored engineers for coding best practices, systems architecture, instrumentation, data, technical presentations
• Authored technical specifications and wrote code to implement end-to-end, working across engineering and business teams.
• Instrumented code, build dashboards & alerts to ensure integrity of services with StatsD, Datadog, PagerDuty.
• Maintained infrastructure consisting of Amazon EC2 instances, RDS (MySQL), Kubernetes, Redis.
• Introduced a data ETL with Python, Apache Airflow, MySQL, BigQuery.

7/2014-6/2015 Software Engineer, Business Intelligence, HowStuffWorks, New York, NY

• Implemented ETL data pipeline with Python, Luigi, Amazon S3, Hadoop, Hive.

7/2008-7/2014 Developer, About.com, New York, NY

• Developed internal tooling, web applications, and services with Python, MySQL, Django, C++, Apache Thrift, Java

11/2004-6/2008 Integration Engineer, SchoolNet, Inc., New York, NY

• Built server systems, Drupal CMS with FreeBSD, PHP & MySQL, automation of data processing jobs.

Education

2000 - 2004 Rutgers, The State University of New Jersey, Newark.

• B.A. Computer Science, Minor: Mathematics