Full Stack JavaScript Web Application Developer
Sacramento, Sacramento County, California, 95828, USA
Listed on 2026-10-18
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Software Development
SQL Developer, Full Stack Developer, Backend Developer, Front End Developer
Location: Remote – United States Only
Position Type: Full-Time Contract
Duration: 12 Months, with Possible 12-Month Extension
Work Hours: Monday–Friday, 8:00 AM–5:00 PM Pacific Time
Estrada Consulting, Inc. is seeking an experienced Senior Software Engineer to design, develop, maintain, and enhance mission-critical web applications for a California public-sector client.
The consultant will support the development of custom web-based solutions, system integrations, database operations, business rules and calculations, testing, and technical documentation.
Key Responsibilities- Design, develop, and maintain secure, user-friendly, high-performance web applications.
- Develop full-stack functionality, including user interfaces, APIs, and database integrations.
- Integrate applications with existing enterprise systems and data sources.
- Develop complex SQL queries for data conversion, analysis, and reporting.
- Troubleshoot application code and perform edge-case testing based on user requirements.
- Implement configurable business rules, calculations, and data validation processes.
- Support user acceptance testing, defect resolution, and application enhancements.
- Prepare technical documentation and collaborate with technical and business stakeholders.
MQ1. Minimum four (4) years of demonstrated experience developing and maintaining solutions that:
- Serve mission-critical applications.
- Are intuitive and user-friendly, requiring little formal training, with features such as online training, on-screen help, and decentralized account management.
- Are performance-oriented for fast response.
MQ2. Minimum four (4) years of experience developing and maintaining web-based solutions.
MQ3. Minimum four (4) years of experience troubleshooting code and performing edge testing based on user requirements/stories (full stack).
MQ4. Minimum four (4) years of experience performing complex database queries in Oracle/MS SQL Server for data conversion, data analysis, and visual reporting.
MQ5. Minimum three (3) years of experience with one or more of the following:
- JavaScript, Type Script.
- Azure Dev Ops/Git Hub.
- VueJS, React, Angular.
- HTML and CSS.
MQ6. Minimum three (3) years of experience with one or more of the following:
- Oracle SQL.
- Microsoft SQL Server.
- MongoDB.
- REST APIs.
- Functions, triggers, and stored procedures.
- DQ1. Experience integrating PCI-DSS-compliant payment portals into web applications.
- DQ2. Experience using Composition API in VueJS.
- DQ3. Experience with MongoDB, Fastify, ExpressJS, or FeathersJS.
- DQ4. Experience creating MongoDB Aggregation Pipelines with multiple stages.
- DQ5. Familiarity with Linux and Docker images for local development.
- DQ6. Experience with Vuetify or Prime Vue third-party component libraries.
- DQ7. Experience using JavaScript libraries such as PDFMake to create PDF reports.
- DQ8. Experience using Oracle SQL Developer or Microsoft SQL Server Management Studio.
- DQ9. Experience using Visual Studio Code (VSCode).
- Must reside and perform all remote work within the United States.
- Must be available during Pacific Time business hours.
- Must successfully complete required background screening and onboarding procedures.
- Must provide verifiable professional references.
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