Senior Full Stack Engineer

Valiant Technologies LLC; Houston (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

Valiant Technologies LLC is seeking a Senior Full Stack Engineer to lead the development of scalable web applications using React.js and Django. You will design cloud architectures on Azure and AWS, integrate FHIR APIs, and ensure HL7/US Core compliance.

Collaborate with cross-functional teams and mentor junior developers to deliver high-quality software. The role emphasizes performance optimization, data modeling with PostgreSQL, and secure access using OAuth 2.0 and SMART on FHIR principles.

Qualifications

• Experience building scalable web apps with React.js and Django REST Framework.
• Experience with cloud platforms (Azure, AWS) and PostgreSQL databases.
• Familiarity with healthcare interoperability standards (FHIR/HL7) is highly desirable.
• Strong problem-solving, mentoring, and collaboration skills.

Responsibilities

• Build, test, and deploy scalable web applications using React.js (frontend) and Django (backend).
• Design scalable architectures and ensure performance and reliability.
• Mentor junior developers and conduct code reviews.
• Implement cloud-based architectures on Azure and AWS; manage CI/CD pipelines.
• Integrate FHIR APIs and map data to FHIR resources; ensure HL7/US Core compliance.

Skills

React.js

Django

Django REST Framework

Azure

AWS

PostgreSQL

Docker

Kubernetes

CI/CD (Jenkins/GitHub Actions/AzureDev

FHIR/HL7

OAuth 2.0 & SMART on FHIR

Education

Bachelor's or Master's degree in a relevant field

Tools

GitHub Actions

Azure DevOps

Terraform

CloudFormation

Job description

We are seeking a highly skilled Senior Full Stack Engineer to lead and contribute to the development of robust, scalable, and high-performing applications. The ideal candidate should have strong expertise in modern frontend and backend technologies, particularly Python, React.js, Django, Azure, AWS, and PostgreSQL.

The candidate will work closely with cross-functional teams to develop innovative solutions, design scalable system architectures, optimize application performance, and mentor junior developers. Experience with healthcare interoperability standards, including FHIR and HL7, is highly desirable for this role.

Key Responsibilities:

1. Full Stack Development:

• Build, test, and deploy scalable web applications using React.js for frontend and Django for backend development.
• Develop and maintain seamless integrations between frontend and backend systems.
• Create reusable components and scalable application architectures.
• Design and implement cloud-based architectures using Microsoft Azure and AWS services.
• Optimize application performance, scalability, and reliability.
• Implement and consume FHIR APIs based on HL7 Implementation Guides.
• Map healthcare data to FHIR R4 resources, including Patient, Coverage, EOB, Clinical, Provider Directory, and Formulary.
• Ensure compliance with HL7 Implementation Guides, including CARIN, PDex, and US Core, as well as CMS mandates such as CMS-0057 and CMS-9115.
• Integrate FHIR data pipelines with platforms such as Firely, AWS HealthLake, and PostgreSQL-backed FHIR servers.
• Apply OAuth 2.0 and SMART on FHIR principles for secure access and consent management.

4. Database Management:

• Design, manage, and optimize relational databases using PostgreSQL.
• Write complex SQL queries and implement efficient database schemas.
• Develop data pipelines and ensure data integrity.
• Deploy, monitor, and maintain applications in Azure and AWS cloud environments.
• Implement CI/CD pipelines to automate application testing and deployment.
• Work with containerization technologies such as Docker and Kubernetes.

6. Collaboration & Technical Leadership:

• Collaborate with product managers, designers, architects, and development teams.
• Mentor junior developers and conduct code reviews.
• Maintain development standards and ensure high-quality deliverables.

7. Best Practices:

• Follow industry standards for application security, performance, and maintainability.
• Evaluate emerging technologies and recommend suitable solutions.

Required Skills & Qualifications:

Programming Languages & Frameworks:

• Extensive experience with React.js.
• Proficiency in Django and Django REST Framework (DRF).
• Hands-on experience with Microsoft Azure and AWS services.
• Familiarity with AWS EC2, S3, RDS, Azure Functions, and Azure App Service.
• Knowledge of serverless architecture and containerization using Docker and Kubernetes.

Database Management:

• Strong experience with PostgreSQL.
• Proficiency in complex SQL queries, database schema design, and performance optimization.

DevOps & Tools:

• Experience with CI/CD tools such as Jenkins, GitHub Actions, and Azure DevOps.
• Familiarity with Infrastructure as Code (IaC) tools such as Terraform or CloudFormation.
• Knowledge of FHIR R4, HL7 Implementation Guides, CARIN, PDex, and US Core.
• Understanding of OAuth 2.0 and SMART on FHIR.

Leadership & Interpersonal Skills:

• Strong problem-solving and analytical skills.
• Excellent communication and collaboration abilities.
• Ability to lead, manage, and mentor development teams effectively.
• Strong organizational skills and attention to detail.
• Fluency in English, both written and verbal.
• Bachelor's or Master's degree (BS/MS) in a relevant field.
• Minimum GPA of 3.0 or higher.

Education Requirements:

Technical Environment:

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.