Salary
$93k – $120k per year
Location
In office (Saint Louis)
Seniority
Senior
Visa
H-1B filings in 12 months: 149 · for this role: 120 · green card filings: 52
Employment
Full-Time
First seen by Alion on Nov 12, 2026.
Overview
Company
Impact
Profile match
Consulting redefined. AI-first solutions delivering outcomes today, not someday—built for your reality, not theory.
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 performance and reliability of your services
- Harden everything for a regulated, PII/PHI-sensitive environment — data masking, least-privilege access, secrets management, and secure handling of personal data by default
- Own your CI/CD: automated linting, type-checking, tests, security scans, and infrastructure changes through to production
- Define and evolve infrastructure as code, and participate in operational ownership of your services
Skills
- 7+ years of professional software engineering experience, including significant experience delivering modern full-stack web applications in production environments
- Strong hands-on experience building frontend applications with React, TypeScript, and modern single-page application architectures
- Proven experience designing and developing backend services using Python, including RESTful APIs, service integration, and API contract-driven development
- Deep experience with AWS cloud services, including AWS Lambda, API Gateway, DynamoDB, IAM, CloudWatch, and related serverless technologies
- Strong understanding of authentication and authorization technologies, including OAuth 2.0, OpenID Connect (OIDC), MFA, token-based security, and role- or entitlement-based access controls
- Experience implementing secure software solutions in environments containing sensitive customer, healthcare, financial, or regulated data
- Demonstrated expertise with CI/CD pipelines, automated testing, code quality controls, security scanning, and release automation
- Hands-on experience with Infrastructure as Code (IaC) using tools such as Terraform, AWS CDK, CloudFormation, or similar technologies
- Experience designing scalable data solutions using NoSQL and/or relational databases, including performance optimization, caching strategies, and data modeling
- Strong understanding of software engineering best practices, including system design, automated testing, observability, resiliency, and production support
- Proven ability to lead technical initiatives, independently drive ambiguous requirements to implementation, and make architectural decisions with minimal oversight
- Experience mentoring engineers, conducting code reviews, and influencing engineering standards and technical direction across a team
- Excellent written and verbal communication skills, with the ability to collaborate effectively across product, engineering, architecture, security, and business stakeholders
Benefits
- A unique and collaborative culture that values every voice.
Company Overview
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