# Sergiy Ensary

> Software Engineer at SpyCloud

Location: Austin, Texas Metropolitan Area, United States
Profile: https://flows.cv/sergiyensary

Server-side typescript/javascript, Serverless, AWS, DynamoDB, Postgres RDS, React, ci/cd, test-driven development

## Work Experience
### Software Engineer @ SpyCloud
Jan 2023 – Present | Austin, TX
- Owned research, design, and implementation of a shared caching layer, cutting response times from 30s to under 5s, and drove adoption across multiple teams to standardize caching patterns org-wide.

- Reduced data processing time from 30 minutes to 7 minutes by parallelizing the ingestion pipeline with AWS Step Functions.

- Designed and architected new services, taking them from proof-of-concept to stable, production‑ready systems including deployment, monitoring, and iterative improvements.

- Developed and maintained RESTful APIs in Python to power customer‑facing and internal integrations.

- Embedded with a dedicated team for a year on a company-critical customer portal initiative, collaborating across multiple microservices and engineering teams; onboarded to a new React + TypeScript frontend and Golang backend stack within 2 weeks and owned backend and infrastructure contributions for the duration of the project.

### Software Engineer @ UpEquity
Jan 2022 – Jan 2022 | Austin, Texas, United States
-Worked closely with product and stakeholders to design diagrams and documentation for future projects
-Used Confluence, Jira, and GitHub to improve the visibility of the development and deployment process
-Worked with AWS Lambdas (Serverless Framework), SQS, SNS, EventBridge, Step Functions, DynamoDB, PostgreSQL RDS Aurora, and other services
-Applied test-driven development with Typescript/Javascript using Jest library
-Maintained the CI/CD pipeline with CircleCI
-Developed backend software to improve efficiency from an industry 30-day average to 14 days to close a mortgage
-Built frontend web applications for intranet using React
-Implemented integrations between SalesForce, Slack, and other systems

### Software Engineer Parttime @ UpEquity
Jan 2021 – Jan 2022 | Austin, Texas, United States

### Software Engineer Intern @ UpEquity
Jan 2021 – Jan 2021 | Austin, Texas, United States
- Integrate SalesForce, Slack, LendingQB, Blend and other software.
- Use AWS: Lambdas, SQS, SNS, EventBridge and other services.
- Develop in JavaScript while using libraries like JsForce, SOAP, and Axios.
- Work with CircleCI, Sentry, Serverless, PostgreSQL, DataDog, Selenium.

### Mentor Swimming Instructor @ Emler Swim School
Jan 2017 – Jan 2021 | Austin, Texas, United States
- Train new hires to become swim teachers
- Advise teachers on conflict resolution techniques for classes
- Interview new teacher applicants
- Teach classes of up to 4 students aged 3 to 15 proper swimming techniques
- Complete and upkeep required training including CPR certification


## Education
### Bachelor of Science in progress in Computer Science
St.Edward's University
Jan 2017 – Jan 2021


## Contact & Social
- LinkedIn: https://linkedin.com/in/sergiy-ensary

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Source: https://flows.cv/sergiyensary
JSON Resume: https://flows.cv/sergiyensary/resume.json
Last updated: 2026-03-29