Scaling, developing, and protecting Reddit's main API surface.

* Improving the observability of the GraphQL ecosystem to find the bottlenecks and failing components

* Availability improvements: reducing the blast radius of the incidents and allowing services to recover after dependency outages or deploys; network topology changes to reduce failure rate and improve resource utilization

* Latency improvements: code optimizations (e.g., PGO) and framework upgrades; load testing to identify the slow paths; memory/CPU requirements tuning

* Cost efficiency: cleaning up unused services and components, migration to more cost-effective platforms

* Federation migration: enabling company-wide federation and Go migrations from a planning and execution point of view

Back-end engineer working on Reddit non-Ad revenue projects: Awards, Reddit Talk, and so on.

Back-end engineer working on Reddit non-Ad revenue projects: Awards, Reddit Talk, and so on.

* Reliability and performance improvements of the Economy ecosystem services

* Scaling the popular features to satisfy the demand (Reddit Awards, Power-Ups)

* Product design and development for Reddit Talk, allowing Reddit to host tens of thousands users in the audio rooms

Java engineer in Identity and Authentication team:

* Working on authentication and security features

* Refactoring existing code to improve speed and quality

* Documentation and design for service architecture

Java back-end team lead for the Acquisition team:

* Finishing the decoupling of the old monolithic back-end into microservices, retiring the old infrastructure

* Development and support of various microservices (authentication, experiments, affiliates, discounts, organizations, and others)

* Migration to Docker, Terraform, AWS ALB, AWS ECS, Artifactory

* Adoption of AWS DynamoDb and AWS Lambda

* Scaling services to work under heavy load as the company's user base grows from tens of thousands to tens of millions after the launch of the Freemium model

* Implementation of GDPR requirements

* Establishing the quality standards for the development process, code, alerts, logs, and metrics

* Working with the team in the absence of the manager to provide people management and ensure a healthy team attitude

* Working with multiple teams inside the organization for cross-team projects, security initiatives, resolving outages, and security incidents

* Working with enterprise customers to provide data insights and aggregating the data with Apache Spark.

Java back-end team lead for Growth and Engagement team:

* Working on user engagement features

* Decoupling of the old monolithic back-end into microservices

* Working on the improvement of the team performance with a proper development process

* Establishing Unit and Integration test culture in the team