Jessica is available for hire

Jessica Singer

Verified Expert in Engineering

Prometheus Developer

Location

Buenos Aires, Argentina

Toptal Member Since

November 9, 2021

Jessica is a software engineer with a strong background in computer science and math. She has worked on many projects in Java using both Spring Boot and Dropwizard, focusing on making scalable and highly available services to maximize throughput with enterprise-grade standards. Jessica has a keen interest in learning new technologies and looks forward to collaborating with others using her skills acquired over the years.

Docker Java Microservices Spring Boot NGINX Python Spring Prometheus PostgreSQL Gatling Software Engineering Algorithms Dropwizard Jenkins Grafana JFrog Artifactory uWSGI

Portfolio

Mantika

Python, uWSGI, PostgreSQL, Testcontainers, APIs

Medallia

Java, Spring Boot, Dropwizard, PostgreSQL, Apache Aurora, Prometheus, Gatling...

Experience

Microservices - 4 years Java - 4 years Spring Boot - 3 years NGINX - 3 years Spring - 2 years Python - 2 years Prometheus - 2 years Gatling - 1 year

Availability

Part-time

Preferred Environment

Spring Boot, Python, Java

The most amazing...

...project I've led is the development of a service mesh with 99,99% uptime supporting over 9,000 concurrent users and 80,000 requirements per minute.

Work Experience

Data Engineer

2021 - 2021

Mantika

Built testing environments for all of the teams' projects and automated manual tests.
Performed a database analysis and improved performance by 50%.
Gave a small training about Docker and Docker Compose to the other developers.

Technologies: Python, uWSGI, PostgreSQL, Testcontainers, APIs

Software Engineer

2018 - 2021

Medallia

Led the development of a service mesh based on Envoy with 99,99% uptime supporting over 9,000 concurrent users and 80,000 requirements per minute.
Designed and conducted the execution of performance tests based on Gatling after gathering the requirements mentioned above.
Developed a forward proxy based on Envoy handling all of the data center's web traffic.
Managed the development of a Metadata API that provides information about the input and output types of any API used internally.

Technologies: Java, Spring Boot, Dropwizard, PostgreSQL, Apache Aurora, Prometheus, Gatling, Docker, Microservices, NGINX, REST, APIs

Experience

Service Mesh Development

Lead the development of a service mesh based on Envoy to handle all microservice communication inside a data center.

The tasks included preparing and executing load and stress tests, dockerizing, monitoring, and deployment.

Education

2016 - 2020

Bachelor's Degree in Computer Science

University of Buenos Aires - Buenos Aires, Argentina

Skills

Tools

NGINX, Apache Aurora, Gatling, uWSGI, Jenkins, Grafana, Artifactory, Jira

Platforms

Docker

Languages

Java, Python

Frameworks

Spring Boot, Spring, Dropwizard

Paradigms

Microservices, REST

Storage

PostgreSQL

Other

Linear Algebra, APIs, Software Engineering, Algorithms, Graph Theory, Probability Theory, Prometheus, Testcontainers, Data Structures

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