Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am an AWS Certified Solutions Architect and full-stack software engineer with over 5 years of experience working with a variety of programming languages including Java, JavaScript, and Scala Spark. I specialize in migrating legacy systems to the cloud and designing solutions for complex business challenges. My work has allowed me to develop efficient, scalable applications while improving operational costs and system reliability. I enjoy collaborating with cross-functional teams and driving impactful improvements through technology. Whether it's optimizing data processing workflows or refactoring codebases for maintainability, I strive to deliver high-quality software solutions that contribute to business success.…I am an AWS Certified Solutions Architect and full-stack software engineer with over 5 years of experience working with a variety of programming languages including Java, JavaScript, and Scala Spark. I specialize in migrating legacy systems to the cloud and designing solutions for complex business challenges. My work has allowed me to develop efficient, scalable applications while improving operational costs and system reliability. I enjoy collaborating with cross-functional teams and driving impactful improvements through technology. Whether it's optimizing data processing workflows or refactoring codebases for maintainability, I strive to deliver high-quality software solutions that contribute to business success.

Zain Jaffary

Developer, Full Stack Developer, Cloud Developer, +1





I am an AWS Certified Solutions Architect and full-stack software engineer with over 5 years of experience working with a variety of programming languages including Java, JavaScript, and Scala Spark. I specialize in migrating legacy systems to the cloud and designing solutions for complex business challenges. My work has allowed me to develop efficient, scalable applications while improving operational costs and system reliability. I enjoy collaborating with cross-functional teams and driving impactful improvements through technology. Whether it's optimizing data processing workflows or refactoring codebases for maintainability, I strive to deliver high-quality software solutions that contribute to business success.…I am an AWS Certified Solutions Architect and full-stack software engineer with over 5 years of experience working with a variety of programming languages including Java, JavaScript, and Scala Spark. I specialize in migrating legacy systems to the cloud and designing solutions for complex business challenges. My work has allowed me to develop efficient, scalable applications while improving operational costs and system reliability. I enjoy collaborating with cross-functional teams and driving impactful improvements through technology. Whether it's optimizing data processing workflows or refactoring codebases for maintainability, I strive to deliver high-quality software solutions that contribute to business success.

Available to hire

I am an AWS Certified Solutions Architect and full-stack software engineer with over 5 years of experience working with a variety of programming languages including Java, JavaScript, and Scala Spark. I specialize in migrating legacy systems to the cloud and designing solutions for complex business challenges. My work has allowed me to develop efficient, scalable applications while improving operational costs and system reliability.

I enjoy collaborating with cross-functional teams and driving impactful improvements through technology. Whether it’s optimizing data processing workflows or refactoring codebases for maintainability, I strive to deliver high-quality software solutions that contribute to business success.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Javanese

Advanced

Amharic

Intermediate

Work Experience

Software Engineer at Carfax

July 1, 2023 - Present

Developed high-performance Java applications using Test-Driven Development principles, designed and implemented a vehicle status and location algorithm processing over 100 million records daily, reducing data processing time by 15%. Led migration of on-premises infrastructure to AWS cloud optimizing cost and scalability through initiatives that reduced storage costs by 40% via S3 lifecycle policies and cut data processing costs by 30% using EMR with EC2 Spot Fleets. Deployed serverless web services with AWS Fargate and DynamoDB to reduce operational overhead and optimize API response times. Collaborated across teams to improve vehicle price accuracy by 15%, enhancing customer trust and revenue. Served as on-call engineer resolving high-severity incidents, reducing downtime by 25%, and implemented monitoring tools to prevent issues. Refactored legacy codebase components to reduce complexity by 30%, improve test coverage by 40%, and accelerate developer onboarding through documentation.

Software Engineer Coop at Garner Distributed Work Inc

August 31, 2022 - July 17, 2025

Automated backup and disaster recovery for a Neo4j database by migrating from on-prem to Google Cloud Platform using GKE and Terraform, reducing recovery time objective by 60%. Developed a custom Java job analyzing shipping records handling non-standard formats with Scala and ZIO, increasing throughput by up to 40% and reducing unhandled exceptions by 25%. Incorporated microservices and APIs with a hexagonal architecture enabling system interoperability and decoupling. Led frontend migration from Angular 12 to 13, integrated backend changes, and improved TypeScript use. Streamlined deployment processes with Bash scripts and CI/CD pipelines enabling automated builds, configuration, artifact uploads, and end-to-end testing. Designed a smoke test framework using Jenkins, Cypress, Kubernetes, Prometheus, and Docker to validate website uptime and functionality upon code changes.