# Senior Full Stack Developer

Perficient is hiring a Senior Full Stack Developer to build and operate a healthcare portal, its embeddable micro-frontend widgets, and serverless APIs on AWS. The role owns platform work end to end, drives technical direction, and delivers secure, reliable solutions for a regulated environment. Responsibilities Own a domain end to end across the full stack — from the React UI through the serverless API to the data and infrastructure that backs it Build and maintain features in a React single-page application and a family of independently deployable micro-frontend widgets that embed into it Design and implement Python serverless APIs (AWS Lambda behind API Gateway), with typed request/response models and an OpenAPI contract as the source of truth Build and evolve identity and authorization — OAuth2/OIDC sign-in, MFA, token validation, and fine-grained, entitlement-based access control (including delegated/third-party access scenarios) Integrate with upstream enterprise APIs: model their contracts defensively, handle partial/missing data gracefully, run calls concurrently, and keep changes backward-compatible Design data and caching layers (e.g., DynamoDB), manage secrets, and tune

- **Id**: 4191345
- **Url**: <https://alion.io/job/perficient-senior-full-stack-developer>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Saint Louis, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-12T19:08:12Z
- **Last verified at**: 2026-11-12T19:08:12Z
- **Board verified**: no
- **Days open**: 0
- **Description format**: text
- **Description chars**: 4245
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: IT Consulting & Digital Transformation, Custom Software Development

## Company

- **Id**: 697513
- **Name**: Perficient
- **Domain**: perficient.com
- **Url**: <https://alion.io/company/perficient>
- **Size band**: 5000+
- **Is staffing agency**: no
- **Employer type**: services
- **Is intermediary**: no
- **Ats vendor**: SmartRecruiters

## Salary

- **Min**: 93000
- **Max**: 120000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 120000

## Technologies

- **Amazon CloudWatch** — Optional: no
- **API Gateway** — Optional: no
- **AWS** — Optional: no
- **AWS CDK** — Optional: no
- **AWS Lambda** — Optional: no
- **CI/CD** — Optional: no
- **CloudFormation** — Optional: no
- **DynamoDB** — Optional: no
- **IAM** — Optional: no
- **Least Privilege** — Optional: no
- **Python** — Optional: no
- **React.js** — Optional: no
- **Rest API** — Optional: no
- **Terraform** — Optional: no
- **TypeScript** — Optional: no
- **JavaScript** — Optional: yes

## Trust

- **Level**: not_scored
- **Days open**: 0

## Requirements

- **Manages managers**: no
- **Security clearance**: no

## Lifecycle

- Event: open; At: 2026-11-12T19:20:15Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 149 · green card filings: 52; Filings 12m: 149

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 28
- **Reasons**: seen:0, win:early
- **Computed at**: 2026-11-12T19:51:03Z

## Pay

- **Stated usd annual**: 120000
- **Is top pay**: no

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.