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# Applications Engineer

- **Company:** KEY TO WEB3 LLC
- **Location:** Austin, TX, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Agile Methodology, Software Quality, Databases, Digital Architecture, Monitoring of Systems, PostgreSQL, Node.Js, Performance Tuning, Scrum Methodology, Query Optimization, Next.js, Server Administration, Software Engineering, TypeScript, Web Applications, Web Application Frameworks, ReactJS, Backend, Information Technology, Graphql, Api Design, Restful APIs, Microservices
- **Published:** November 2, 2026
- **Apply:** https://www.careerbuilder.com/job-details/applications-engineer-austin-tx--cc5fd709-5547-402c-ae8a-a8325565b5d2

## About the Role

Software Engineering, Software Engineering, Performance Tuning/Optimization, Technical Recruiting, Internet Application, React.js, Software Administration, Application Programming Interface (API), REST (Representational State Transfer), GraphQL, * Proficiency in TypeScript, NextJS, Fastify, tRPC, Drizzle, REST, and PostgreSQL.

 * Experience building backend microservices with NodeJS.
 * Solid understanding of API architecture and server-side development.
 * Strong database skills with query optimization and performance tuning.
 * 4+ years of experience in software engineering.
 * Experience delivering production-scale systems.
 * Bachelor's degree in computer science or related field-or equivalent experience.
 * Familiarity with Agile development practices.
 * Experience working in early-stage or scaling environments.
 * Interest in building user-friendly and accessible interfaces.
 * Ability to write clean, maintainable code and follow engineering best practices.
 * Strong collaboration skills with cross-functional teams.
 * Proactive in identifying technical and process improvements.

## Description

* Build and maintain web applications using TypeScript, React, and modern frameworks.
 * Develop and maintain APIs using Fastify, tRPC, GraphQL, gRPC, and REST.
 * Participate in architecture discussions and propose scalable, secure solutions.
 * Write modular, testable code focused on long-term maintainability.
 * Create and run test plans to ensure software quality.
 * Monitor system performance and address bottlenecks.
 * Document architecture, APIs, and internal processes.
 * Contribute to feature development and iterative product improvements.
 * Work cross-functionally with design, product, and engineering teams.
 * Participate in Agile workflows (sprint planning, standups, retrospectives).