Senior Application Engineer – Digital Products
Experion Technologies · United States
- On site
- Contract
- United States
About the role
Senior Application Engineer / Full Stack
Remote (US) - Willingness to travel to client location-Cary, NC / Overland Park, KS based on business needs
Role Overview
We are seeking a highly skilled Senior Application Engineer to join the Digital & IT organization. This is a senior-level role for engineers who design, build, and operate modern, cloud-native digital products, and who bring strong technical judgment, architectural thinking, and ownership mindset to complex systems.
You will work as part of a cross-functional product team alongside engineers, product managers, and UX designers to deliver internal and customer-facing software that supports digital transformation. This role emphasizes technical leadership, solution design, and building reliable, scalable, production-grade applications, while mentoring other engineers and raising the overall engineering bar.
The Team
This role sits within the D&IT Digital Products team, which enables people, projects, and businesses through modern platforms, data, analytics, and digital products. Our teams build and operate software using agile, product-oriented ways of working with a strong focus on quality, security, and reliability.
Key Responsibilities
As a Senior Application Engineer, you will:
•
Design, develop, test, and deploy complex frontend and backend components of custom web applications
•
Lead the technical design of features and services, balancing business needs with long-term maintainability
•
Build responsive, accessible user interfaces using TypeScript and React
•
Develop scalable backend services using TypeScript (NestJS) and Python
•
Design and implement real-time and event-driven functionality using WebSockets and messaging patterns
•
Define and evolve data access layers and service boundaries using Prisma or similar ORM tools
•
Apply sound architectural principles to ensure systems are secure, reliable, and scalable
•
Participate in and lead code reviews, technical discussions, and architecture decisions
•
Collaborate closely with product and UX partners to shape requirements and technical solutions
•
Contribute to CI/CD pipelines and support deployments to production environments
•
Diagnose and resolve complex issues in development and production systems
•
Create and maintain technical documentation to support long-term system understanding
•
Mentor and support other engineers through guidance, feedback, and example
This role is an individual contributor position with significant technical ownership and influence.
What Success Looks Like (First 6–12 Months)
•
Independently delivering complex, production-ready features across frontend and backend
•
Demonstrating strong understanding of the application architecture, domain, and operational context
•
Making sound technical decisions that improve system quality and team velocity
•
Contributing to architectural direction and reducing technical debt
•
Supporting and mentoring other engineers on the team
•
Proactively identifying risks, gaps, and opportunities for improvement
Job Description
2
Minimum Qualifications
•
Bachelor’s degree in computer science, Engineering, or a related field, or equivalent practical experience
•
6+ years of professional software development experience
•
Strong proficiency in TypeScript and modern JavaScript development
•
Extensive experience building frontend applications using React (Vite or similar tooling)
•
Strong experience developing backend services using Node.js frameworks (NestJS preferred) and/or Python
•
Experience designing APIs, service boundaries, and data models
•
Strong familiarity with Git-based version control and collaborative development workflows
Preferred Qualifications
•
Experience building custom dashboards or data-rich user interfaces
•
Experience working with time-series, telemetry, or streaming data
•
Exposure to IoT, event-driven, or real-time systems
•
Familiarity with 12-Factor App principles and cloud-native application design
•
Exposure to CLEAN architecture and Domain-Driven Design (DDD) concepts
•
Experience with containerized applications (e.g., Docker) and container platforms (e.g., ECS)
•
Familiarity with infrastructure-as-code tools such as Terraform
•
Experience operating and supporting applications in production environments
•
Understanding of observability concepts such as logging, metrics, and monitoring
•
AWS certification (Associate or higher) is a plus