Jeff Baranski
resume@jeffbaranski.com | Washington, D.C. | https://www.jeffbaranski.com
Summary
Curious and motivated Engineering Manager with ~15 years industry experience who holds a bachelor’s and master’s degree in Computer Science.
Proven track record of delivering highly available, scalable, and performant software with millions of daily active users. Proficient programming and software design skills, including debugging, performance analysis, and test design for large-scale cloud based distributed systems.
Experienced coaching, developing, and motivating multiple distributed teams of software engineers.
Experience
Capital One 03/2021-02/2024, 09/2024-Present - Manager, Lead Software Engineer
- Manage two teams of software engineers developing mission critical high transaction per second low latency web services (~20k TPS and ~5ms response times). Every Capital One line of business uses our APIs as the source of truth for customer account information: Develop product and infrastructure roadmaps; coach and mentor direct reports; recruit and build teams.
- Architect and implement enhancement that eliminates redundant downstream API calls by sourcing data from the database directly: Improved API response times by ~75%, from ~20 ms to ~5 ms. Led to ~85% decrease in requests to downstream APIs, from ~2.7 billion daily requests to ~405 million daily requests. Resulted in ~65% decrease in annual infrastructure costs, from ~$1 million to ~$350k.
- Architect and implement big data batch process that determines which customers to target for in app messaging related to their account data sharing activities with 3rd parties: Send notifications to ~3 million customers daily. Recognized with quarterly “relentless commitment to excellence” award in Q2 of 2022 for my contributions leading this project from ideation to production release.
- Technologies used: Java, Spring Boot, Python, PySpark, Hadoop, Cassandra, AWS (Lambda, ECS, EMR, S3, DynamoDB).
CrowdStrike 02/2024-08/2024 (6 months) - Senior Engineer
- Log ingest and real time alerting engine at daily multi-petabyte scale: Scala, Kafka, AWS (CloudTrail, SQS, S3).
Verisign 03/2020-03/2021 (1 year) - Software Engineer III
- Authentication web services for domain name registrars: Java, Spring, PostgreSQL, MongoDB, Ansible, OpenCloud.
Knexus Research Corporation 01/2019-03/2020 (1 year 3 months) - Senior Software Engineer
- AI search web services and GIS UI for a DoD (Department of Defense) customer: Java, Python, TypeScript, Angular, OpenStreetMap.
Infor 02/2009-12/2019 (9 years 11 months) - Senior Software Engineer
- Asset management (for factory equipment) client-server software: Java, Java EE, JBoss, Apache HTTP, Ant, Gradle, Oracle Database, SQL Server, Ext JS, AWS (ALB, EC2, S3).
- Managed a team of six onsite and offshore developers, which included regular travel to Hyderabad, India for face to face coaching and training.
Education
- MS in Computer Science 08/2022: Vanderbilt University (Grade: 4.0/4.0)
- BS in Computer Science 12/2008: University of South Carolina (Upstate)
Licenses & certifications
- AWS Certified Solutions Architect - Associate
12/2021-12/202401/2025-01/2028