Fullstack Developer

Intone Inc; Frisco (TX); On-site; USD 83,000 - 124,000; Full time

Job summary

Intone Inc. is seeking a Fullstack Developer for a 6-month contract in Frisco, TX.

You will design and scale a customer data platform with real-time data processing, microservices, and full-stack work across backend and frontend systems. Responsibilities include building scalable profile services for 400M+ profiles, implementing identity resolution, Kafka-based event-driven architectures, and creating responsive web apps using React or Angular.

Qualifications

• Must have experience with Java 17 or newer.
• Proficiency in Spring Boot and building microservices/REST APIs.
• Familiarity with GraphQL and Kafka.
• Hands-on experience with gRPC and frontend frameworks (React.js or Angular).
• Strong TypeScript and JavaScript ES6+ skills; HTML5/CSS3.
• Experience with relational and NoSQL databases (Cassandra, DynamoDB, MongoDB, PostgreSQL, Redis).
• Cloud experience (AWS or GCP) and container orchestration (Docker, Kubernetes).
• Familiarity with Terraform and CI/CD pipelines; observability tools (Prometheus, Grafana, OpenTelemetry, Jaeger).
• Experience with streaming tech (Kafka, Debezium).

Responsibilities

• Design and build scalable backend services using microservices architecture.
• Develop RESTful and GraphQL APIs for profile data access.
• Create real-time data processing and streaming pipelines with Kafka.
• Implement RBAC, multi-tenant architecture, and audit logging.
• Develop front-end components with React.js or Angular and integrate with backend APIs.
• Ensure performance, reliability, and security of customer data platform.
• Collaborate across teams to deliver end-to-end CDP features.
• Implement observability and tracing with OpenTelemetry and Jaeger.

Skills

Java 17

Spring Boot

Microservices

REST APIs

GraphQL

Kafka

gRPC

React.js

Angular

TypeScript

JavaScript ES6+

HTML5

CSS3

Material UI

Bootstrap

Cassandra

DynamoDB

MongoDB

PostgreSQL

Redis

AWS

GCP

Docker

Kubernetes

Terraform

CI/CD

OpenTelemetry

Prometheus

Grafana

Jaeger

Debezium

Tools

Docker

Kubernetes

Terraform

CI/CD pipelines

Kafka

Debezium

OpenTelemetry

Jaeger

Prometheus

Grafana

Job description

We are hiring a Fullstack Developer for a 6-month contract position based in Frisco, Texas. This role focuses on building and scaling a customer data platform with real-time data processing capabilities, microservices architecture, and full-stack development across backend and frontend systems.

Responsibilities

• Design and build scalable customer profile services supporting 400M+ profiles
• Implement identity resolution and profile stitching across multiple data sources
• Support batch ingestion, incremental processing, and real-time profile updates
• Design high-performance APIs for profile retrieval and management
• Build data enrichment and profile enhancement pipelines
• Implement consent management and compliance controls
• Develop Kafka-based event-driven architectures
• Build CDC pipelines using Debezium or equivalent technologies
• Design resilient data synchronization services
• Implement fault-tolerant retry and recovery mechanisms
• Ensure event ordering and data consistency
• Build RESTful and GraphQL APIs
• Develop responsive web applications using React or Angular
• Create customer profile management dashboards
• Integrate backend microservices with frontend applications
• Design reusable UI components
• Optimize application performance and scalability
• Implement RBAC, multi-tenant architecture, and audit logging
• Establish data governance controls and security monitoring
• Implement OpenTelemetry, distributed tracing, and metrics collection
• Monitor SLO/SLA performance, capacity planning, and auto-scaling

Qualifications

• Required
  • Experience with Java 17 or later
  • Proficiency in Spring Boot
  • Experience building microservices and REST APIs
  • Familiarity with GraphQL
  • Hands-on experience with Kafka
  • Experience with gRPC
  • Front-end development experience with React.js or Angular
  • Proficiency in TypeScript
  • Strong JavaScript ES6+ skills
  • HTML5 and CSS3 competency
  • Experience with Material UI or Bootstrap
  • Working knowledge of relational and NoSQL databases (Cassandra, DynamoDB, MongoDB, PostgreSQL, Redis)
  • Cloud platform experience with AWS or GCP
  • Container and orchestration experience with Docker and Kubernetes
  • Familiarity with Terraform and CI/CD pipelines
  • Experience with streaming technologies including Kafka and Debezium
  • Knowledge of observability tools such as Prometheus, Grafana, OpenTelemetry, and Jaeger
• Preferred
  • Experience with Spark or Flink
  • Background with FAANG or Tier 1 product companies
  • Experience building Customer Data Platforms (CDP)
  • Knowledge of identity resolution and customer profile management systems
  • Familiarity with Enterprise SaaS platforms