Sr. Software Engineer Appian to React Migration (Full Stack Engineer)

Feuji Inc

Position Summary
The COB Platform team is looking for an experienced full stack engineer to support the migration of existing low-code applications to a modern React and Java Spring Boot stack, deployed on AWS EKS. Part of this work involves migrating business logic from SQL Server stored procedures into clean Java REST APIs and building the corresponding React frontend. The engineer will work closely with the platform architect/manager and a small team in a fast-paced delivery environment.
Primary Requirements

5+ years of professional software engineering experience

5+ years of React development React, TypeScript, functional components, hooks

5+ years of Java development Java 17 or higher, Spring Boot, Spring MVC, Spring Security

Strong REST API design and development experience

Experience migrating business logic from stored procedures or legacy systems into a Java service layer

SQL Server or equivalent relational database experience reading and working with complex stored procedures

Docker containerization multi-stage builds, health checks

AWS experience EKS, RDS, S3, IAM fundamentals

Helm chart authoring for Kubernetes deployments

Okta or equivalent OIDC / OAuth 2.0 integration both SPA (frontend) and resource server (backend)

Unit testing JUnit 5 / Mockito (backend), Jest / React Testing Library (frontend)

Secondary Requirements

TanStack Query (React Query) for server state management

React Router v6

Spring Data JDBC or JPA for database access

Tailwind CSS or equivalent utility-first CSS framework

Playwright or Cypress for end-to-end testing

Familiarity with AI-assisted development tools

Maven or Gradle build tooling

Bitbucket or equivalent Git-based source control and PR workflow

Nice to Have

Experience migrating from Appian or other low-code platforms to React

Kafka or event-driven architecture experience

Healthcare or claims domain knowledge

Apply

Vacancy posted 2 days ago

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