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Senior Full Stack Engineer

InterSources Inc.

El Dorado Hills, CA

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JOB DETAILS
SALARY
$60–$65 Per Hour
SKILLS
Agile Programming Methodologies, Amazon Web Services (AWS), Application Programming Interface (API), Best Practices, CSS (Cascading Style Sheet), Cloud Applications, Cloud Computing, Code Reviews, Consulting, Continuous Deployment/Delivery, Continuous Integration, Cross-Functional, Data Analysis, Design Patterns Programming Methodologies, Distributed Computing, Docker, ECMAScript, GCP (Good Clinical Practices), GraphQL, HTML5, Internet Application, Internet Security, JUnit, Java, JavaScript, Leadership, Mentoring, Microservices, Microsoft Windows Azure, Mobile Applications, MongoDB, MySQL, NoSQL, OAuth, Oracle, Performance Tuning/Optimization, PostgreSQL, Process Improvement, Professional Services, Protective Services, Quality Assurance, REST (Representational State Transfer), RabbitMQ, React.js, Redis, SQL (Structured Query Language), SQL Databases, Scalable System Development, Scrum Project Management and Software Development, Small Business, Software Development, Software Engineering, Systems Scalability, User Interface/Experience (UI/UX)
LOCATION
El Dorado Hills, CA
POSTED
9 days ago
Senior Full Stack Engineer
Tech Stack: Java / Spring Boot (Backend) + React / TypeScript (Frontend)
Location: 12+ Month Contract
Location – Mountain View OR NY/NJ
Rate – $60 to $65 C2C
USC/ GC only if they are genuine. LinkedIn and visa copy is must
Need locals so it can be in person also after telephonic...but not mandatory. But possibility is there
Overview
We are seeking a Senior Full Stack Engineer (10+ years experience) to design, build, and scale modern web applications.
The ideal candidate will have:
  • Strong backend expertise in Java and Spring Boot
  • Strong frontend expertise in React with TypeScript
  • Experience building cloud-native microservices and distributed systems
This role requires deep technical knowledge, strong system design skills, and cross-functional collaboration.
Key Responsibilities
Backend Development
  • Design and build scalable microservices using Java and Spring Boot
  • Develop and maintain RESTful APIs for web and mobile applications
  • Ensure security, reliability, and performance of backend services
  • Implement data access using SQL and NoSQL databases
  • Integrate internal/external systems via APIs and event-driven architectures
Frontend Development
  • Build modern UIs using React + TypeScript
  • Develop reusable components using:
  • Hooks
  • Functional components
  • Implement state management using:
  • Redux / Zustand / Context API
  • Integrate frontend with backend APIs
  • Ensure:
  • Performance optimization
  • Accessibility
  • Responsive design
Architecture & System Design
  • Participate in architecture discussions and design reviews
  • Design scalable, modular systems
  • Apply best practices for:
  • Performance
  • Reliability
  • Security
Cloud & DevOps
  • Deploy applications on AWS, GCP, or Azure
  • Build and maintain CI/CD pipelines
  • Use containerization tools:
  • Docker
  • Kubernetes
  • Implement monitoring, logging, and observability
Collaboration & Leadership
  • Work closely with:
  • Product managers
  • Designers
  • QA engineers
  • Conduct code reviews and enforce best practices
  • Mentor junior engineers
  • Drive improvements in:
  • Architecture
  • Performance
  • Developer productivity
Required Qualifications
  • 10+ years of software development experience
  • Strong expertise in Java + Spring Boot
  • Experience building microservices and REST APIs
  • Strong experience with React + TypeScript
  • Deep understanding of:
  • TypeScript
  • Modern JavaScript (ES6+)
  • HTML5 / CSS3
  • Experience with:
  • SQL (PostgreSQL, MySQL, Oracle)
  • NoSQL (MongoDB, Redis, DynamoDB)
  • Experience building cloud-native applications
  • Strong understanding of system design and design patterns
Preferred Qualifications
  • Event-driven systems (Kafka, RabbitMQ)
  • GraphQL
  • Testing frameworks:
  • JUnit
  • Jest
  • React Testing Library
  • Observability tools:
  • Datadog
  • Prometheus
  • Grafana
  • Security:
  • OAuth2
  • JWT
  • Experience in Agile/Scrum environments
Key Technologies
Backend
  • Java
  • Spring Boot
  • REST APIs
  • Microservices
  • SQL / NoSQL
Frontend
  • React
  • TypeScript
  • Redux / Zustand / Context API
  • HTML5 / CSS3
Infrastructure
  • AWS / GCP / Azure
  • Docker
  • Kubernetes
  • CI/CD pipelines


Thank you
Kailash Chandra
InterSources Inc.
E.

kailash@intersourcesinc.com

, C.510-500-5243
A. 39159 Paseo Padre Pkwy Suite 104 &106 Fremont CA - 94538
L: California / Arizona / New York / Canada / London / Costa Rica / India
*CyberSecurity * Cloud Migrations * Digital Engineering
*Data & Advanced Analytics * Consulting * Professional Services
*SBA Certified - Women Owned

About the Company

I

InterSources Inc.

It’s all about harnessing the real power of data. InterSources Inc was founded in 2007 providing intelligent data solutions to clients across industries and geographies.

Over the years, we have built products on Business Intelligence & Big Data platform simplifying and transforming the way business intelligence and real-time data analytics empower Corporations and end-users using Softwares like Tableau, Business Objects, MicroStrategy, etc.

In the process, we have enabled companies to use data analytics to help better understand, predict and influence consumer behavior, identify new market opportunities as they emerge, provide to users the data they need, alert the user when and why key business metrics have changed and enable them to make smart decisions.

COMPANY SIZE
100 to 499 employees
INDUSTRY
Computer/IT Services
FOUNDED
2007
WEBSITE
https://www.intersourcesinc.com/

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