Gregory Kosmacek
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Gregory Kosmacek Email & Phone Number

Full-stack Developer at Nelnet
Location: Nevis, Minnesota, United States 5 work roles 1 school
1 work email found @nelnet.com 2 phones found area 402 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email g****@nelnet.com
Direct phone (402) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Full-stack Developer
Location
Nevis, Minnesota, United States
Company size

Who is Gregory Kosmacek? Overview

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Quick answer

Gregory Kosmacek is listed as Full-stack Developer at Nelnet, a with 2279 employees, based in Nevis, Minnesota, United States. AeroLeads shows a work email signal at nelnet.com, phone signal with area code 402, and a matched LinkedIn profile for Gregory Kosmacek.

Gregory Kosmacek previously worked as Web Developer at Federal It Consulting (Feditc) and Programmer/Analyst 2 at Duncan Aviation. Gregory Kosmacek holds Associate Of Applied Science (Aas), Information Technology, 3.97 from Northeast Community College.

Company email context

Email format at Nelnet

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{first}.{last}@nelnet.com
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AeroLeads found 1 current-domain work email signal for Gregory Kosmacek. Compare company email patterns before reaching out.

Profile bio

About Gregory Kosmacek

Skilled developer with experience in TypeScript, Angular 2+, CSS, HTML5, JavaScript, Node.js, Docker, NPM, Git, SQL, Vue.js, Nuxt.js, Postgres, MySQL, AWS, Jest, Mocha, Chai, Jasmine, Java, SASS, JAX-RS, JSF, Regex, Express.js, Vuetify.js, REST, TypeORM, Sequelize, and SVN. Experienced Customer Service Representative with a demonstrated history of working in the higher education industry.

Listed skills include Angular 2+, Java, Javascript, Html5, and 11 others.

Current workplace

Gregory Kosmacek's current company

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Nelnet
Nelnet
Full-stack Developer
lincoln, nebraska, united states
Website
Employees
2279
AeroLeads page
5 roles

Gregory Kosmacek work experience

A career timeline built from the work history available for this profile.

Full-Stack Developer

Current

- Perform full-stack development for a loan origination platform, Velocity Originations- Build reusable UI and business logic modules with TypeScript and proprietary UI tooling/microservices for use in client implementations, release updates following semantic versioning- Create, update, document, and maintain microservices using TypeScript, Moleculer, Docker, and Helm- Create database tables and migrate data using Postgres and TypeORM- Write unit and integration tests for microservices, business logic modules, and client implementations using Jest- Track work using Jira and participate in scrum ceremonies - Perform code reviews in GitHub, request and/or suggest changes as needed- Mentor four developers, provide guidance in non-standard areas of the codebase, identify areas for self-guided learning, set up recurring one-on-one meetings- Participate in multiple developer and scrum master interviews- Take on tech lead responsibilities for a team of developers; work with product teams and architects when defining new features, help other developers with technical questions, and promote good practices within the organization- Assist in meeting the deadline for a client implementation, become a subject matter expert on the client's loan amortization process, and share knowledge with developers by presenting on the topic and creating technical documentation- Increase development speed by creating a project which centralizes local microservice cluster management and adds data persistence between restarts using Docker Compose. Present on the topic to the team and larger organization- Act as the primary on-call developer on a rotating schedule, respond to alerts in a timely manner, research issues in Datadog, resolve where possible, and delegate to other teams when needed

Oct 2021 - Present

Web Developer

- Perform full-stack development for the IGAPP-ZEUS program- Rework the client interface for a web application using Vue.js, Nuxt.js, and Vuetify.js- Perform HTTP requests to Node.js endpoints to retrieve client data- Maintain complicated client application state using Vue and the Nuxt.js store- Implement API endpoints with Express, configure authorization with middleware, and return data from a - MySQL database using Sequelize- Document Express endpoints using Postman- Create and update tables, and perform database migrations on a MySQL database using SQL and MySQL workbench- Track project status, perform merge reviews, and create merge requests using Gitlab- Participate in sprint planning meetings and sprint reviews- Interact with AWS S3 buckets using Node.js and the AWS SDK. Create, read, update, and delete S3 resources, and keep in sync with a MySQL database table- Implement a 3rd party authorization and user management solution, Keycloak- Create docker images and docker compose files for our Nuxt client, NodeJS server, Keycloak server, and MySQL database instance to ease in local development setup- Create end-to-end tests for a web application using Jest and Playwright

Mar 2021 - Oct 2021

Programmer/Analyst 2

Lincoln, Nebraska Area

- Estimate, design, develop, test, and train users on enhancements to new and existing web and legacy Java applications- Aid in a technology stack migration from RPG, Java, and JSF to NodeJS, TypeScript, and Angular including framework design and construction- Document and maintain a reusable Angular component library and keep peers notified of new features and modifications- Develop, contribute to, and maintain a design system using Adobe XD and SASS- Create, document, and maintain REST APIs using JAX-RS, NodeJS, and Postman- Participate in peer code reviews and pair programming- Perform multiple major Angular upgrades, including 4 to 6, and 6 to 10- Increase code stability, security, and performance by implementing unit and integration tests with Jasmine, Mocha, and Chai- Ensure WCAG conformance with WAVE and custom accessibility tools- Detect and improve poor code performance with Chrome developer tools- Manage a team of developers on multiple projects; set up and run meetings, gather information from users and other developers, document project knowledge in OneNote, diagram processes using Diagrams.net, create mockups using Adobe XD, coordinate work with Trello, estimate deadlines, user test, develop training curriculum, form implementation plan, implement, and support user needs afterward

Jun 2017 - Mar 2021

Customer Service Representative

Norfolk, Ne

- Greet customers by phone, email, or face to face; ascertain their needs; and respond in a timely and professional manner- Perform hardware and software repairs across a large user base- Image and deploy hundreds of computers and mobile devices- Work with inventory management and ticket systems- Assist with a network upgrade and domain transfer

Aug 2015 - May 2017

Federal Work Study

Norfolk, Ne

- Configure high end production equipment for classroom use- Aid in the design and setup of video systems for sporting and public events

Aug 2015 - May 2017
Team & coworkers

Colleagues at Nelnet

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1 education record

Gregory Kosmacek education

FAQ

Frequently asked questions about Gregory Kosmacek

Quick answers generated from the profile data available on this page.

What company does Gregory Kosmacek work for?

Gregory Kosmacek works for Nelnet.

What is Gregory Kosmacek's role at Nelnet?

Gregory Kosmacek is listed as Full-stack Developer at Nelnet.

What is Gregory Kosmacek's email address?

AeroLeads has found 1 work email signal at @nelnet.com for Gregory Kosmacek at Nelnet.

What is Gregory Kosmacek's phone number?

AeroLeads has found 2 phone signal(s) with area code 402 for Gregory Kosmacek at Nelnet.

Where is Gregory Kosmacek based?

Gregory Kosmacek is based in Nevis, Minnesota, United States while working with Nelnet.

What companies has Gregory Kosmacek worked for?

Gregory Kosmacek has worked for Nelnet, Federal It Consulting (Feditc), Duncan Aviation, and Northeast Community College.

Who are Gregory Kosmacek's colleagues at Nelnet?

Gregory Kosmacek's colleagues at Nelnet include Daniel Samson, Austin Verkamp, Msba, Jeff Riekenberg, Marlyinn Hankla, and Thomas Diebel.

How can I contact Gregory Kosmacek?

You can use AeroLeads to view verified contact signals for Gregory Kosmacek at Nelnet, including work email, phone, and LinkedIn data when available.

What schools did Gregory Kosmacek attend?

Gregory Kosmacek holds Associate Of Applied Science (Aas), Information Technology, 3.97 from Northeast Community College.

What skills is Gregory Kosmacek known for?

Gregory Kosmacek is listed with skills including Angular 2+, Java, Javascript, Html5, Typescript, Javaserver Faces, Css, and Rpg.

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