Jeremy Greer
Mentor
(3 reviews)
US$10.00
For every 15 mins
7
Sessions/Jobs
ABOUT ME
No-nonsense JavaScript stud, always happy to help
No-nonsense JavaScript stud, always happy to help
Jeremy is a senior software engineer focused on data engineering. He has a background in full-stack web apps across a wide range of technologies and environments. He believes in clean code, thoughtful testing, and reading the manual. Balancing idealism and pragmatism, Jeremy maximizes quality while delivering products.
Eastern Time (US & Canada) (-04:00)
Joined July 2019
EXPERTISE
7 years experience
12 years experience | 3 endorsements
7 years experience | 3 endorsements
6 years experience
5 years experience
AWS Certified Solutions Architect - Associate
https://www.youracclaim.com/badges/270352f2-c278-45b3-9a7a-ec7636571820
AWS Certified Solutions Architect - Associate
https://www.youracclaim.com/badges/270352f2-c278-45b3-9a7a-ec7636571820
3 years experience
4 years experience
REVIEWS FROM CLIENTS
(3 reviews)
Removed User
February 2020
Super helpful! Talked over my the issues in my code step by step to make sure that not only the problem was solved but that I 100% understood everything too. Jeremy also provided lots of good tips & sent outside articles to help make my work more efficient in future.
Falmata Dawano
January 2020
In two hours, I solved 2 type of coding challenges that are well known in a manner where I knew what each peace of my logic was doing. I also learned how to solve a challenge peace by peace using basic Test driven development principles. As I was working on these challenges, Jeremy acted as an interviewer, a teacher, and a mentor that was giving me valuable lessons and concepts that will benefit me for the rest of my JavaScript development career. Every question I had, he would answer them and provided me with the resources to learn more and how to extract what I want. He knows his stuff but makes you feel like hes your friends that's learning with you. Recommended.
SOCIAL PRESENCE
jscodeshift-helper
a utility to help you explore jscodeshift
JavaScript
21
0
npm-boom
Use this boilerplate to get up and running quickly.
JavaScript
15
5
1862 Reputation
2
18
27
EMPLOYMENTS
Data Engineer
Elevance
2021-02-01-Present
- Developed multiple Python projects focused on ETL with Pachyderm and PySpark. Used TDD to create full-tested code with Pytest. De...
- Developed multiple Python projects focused on ETL with Pachyderm and PySpark. Used TDD to create full-tested code with Pytest. Debugged pipeline failures and improved logging.
- Managed multiple GitLab CI/CD pipelines. Built a system to dynamically generate test data and run E2E integration tests with custom, extensible assertions. Used deterministic Git and Docker references and GitLab artifacts to ensure reproducibility.
- Implemented code and data versioning and developed Git hooks to automatically generate API schema based on Pydantic models. Created an extensive suite of tools to facilitate faster development and assist with everyday tasks.
- Advised on Agile ceremonies, branching strategies, and Git usage (techniques for avoiding massive merge conflicts). Developed release strategy and added software expertise to the data science team.
Python
SQL
Git
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Python
SQL
Git
JSON
Bash
Amazon S3
Big Data
Docker
pytest
Git flow
Apache Spark
HL7
Agile
CI/CD
Go (Golang)
GitLab CI/CD
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Solutions Engineer Executive Advisor
Elevance
2020-09-01-2022-02-01
- Created a node GraphQL API to support UI layers, generated TypeScript types from RAML for 3rd party APIs, developed suites of aut...
- Created a node GraphQL API to support UI layers, generated TypeScript types from RAML for 3rd party APIs, developed suites of automated Postman scripts to validate endpoints E2E, and manually managed PostgreSQL database.
- Migrated users from in-house DB to Salesforce via Mulesoft, developed tools to verify the integrity of 3rd party APIs proactively, and created custom reporting and UI tools to assist admins with migrating users.
- Oversaw full-stack development, advised on patterns and best practices, performed code reviews, and maintained a solid unit-testing and integration-testing culture.
- Created zero-downtime deployment strategy (blue/green), orchestrated frequent deployments, and developed tools to improve productivity around everyday tasks like managing environment variables hosted in AWS S3.
SQL
Node.js
Bash
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SQL
Node.js
Bash
PostgreSQL
Shell
Amazon S3
Salesforce
TypeScript
Test driven development
Docker
React
Data Migration
Jest
Datadog
GraphQL
MuleSoft
Agile
CI/CD
Adobe Experience Manager
RESTful API
Tailwind css
Express.js
AWS (Amazon Web Services)
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Senior Full-stack Developer and API Engineer
Elevance
2020-01-01-2020-12-01
- Worked on an enterprise Node application to support the migration and development of new service endpoints in SOA. Provided guida...
- Worked on an enterprise Node application to support the migration and development of new service endpoints in SOA. Provided guidance for service consumers.
- Developed a React Native application to replace native iOS and Android web views. Consulted on best practices and conventions around naming, style, organization, and testing.
- Designed and implemented a greenfield service layer SDK to provide network communications, session management, SSL pinning, auth, and caching. Open to dynamic extension using decorators and dependency injection.
- Created testing infrastructure and reference implementations for new code using TDD, delivering 100% coverage and example solutions for complex mocking scenarios.
- Developed internal tooling to programmatically identify entities in test data, generate endpoint code from Postman exports. These saved days of manual investigation and code creation.
SQL
Node.js
Git
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SQL
Node.js
Git
MongoDB
CSS3
Unit Testing
TypeScript
npm
Test driven development
Front-End
Full Stack
Docker
React
JavaScript
Jest
Kubernetes
React Native
Microservices
Redux
Agile
CI/CD
RESTful API
Express.js
AWS (Amazon Web Services)
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PROJECTS
UI DemoView Project
2020
This is a demo project I completed to demonstrate UI proficiency. It is fully responsive and matches the UX requirements to the pixel. It...
This is a demo project I completed to demonstrate UI proficiency. It is fully responsive and matches the UX requirements to the pixel. It is backed by React, Redux, and Saga, using Vanilla.js and CSS, and hosted on AWS S3. There are unit tests to ensure functionality, and several optimizations were employed to ensure snappy feedback, like client-side filtering to reduce calls to the server.
You can see the source at Github.com/reergymerej/toptal-loves-jeremy.
HTML
Test driven development
React
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HTML
Test driven development
React
CSS
Jest
Redux
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Developer PortalView Project
2021
Application using PostgreSQL, Node.js, and React that served as a platform for developers in the healthcare industry. The system was buil...
Application using PostgreSQL, Node.js, and React that served as a platform for developers in the healthcare industry. The system was built as a quick prototype with CRA, which was ejected once the POC phase was complete, and revamped, scalable and maintainable. The UI uses custom React hooks and Tailwind CSS. The Node.js API had an Express router that grew to include GraphQL and interaction with SalesForce CRM as a 3rd party connection. The product was extremely well received by the organization partially because of its capacity to adapt quickly to changes.
Node.js
PostgreSQL
Test driven development
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Node.js
PostgreSQL
Test driven development
React
GraphQL
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