Senior Full Stack Engineer

Role: Senior Full Stack Engineer


Type: Contract


Location: Mountain View, CA (100% Onsite)


Mandatory Skills: Java / Spring Boot (Backend) + React / TypeScript (Frontend)

Overview


We are seeking a highly experienced Senior Full Stack Engineer (10+ years) to design, build, and scale modern web applications. The ideal candidate will have strong expertise in Java/Spring Boot backend development and React with TypeScript for frontend development, along with experience building cloud-native microservices and scalable distributed systems.


This role requires deep technical expertise, strong system design skills, and the ability to collaborate across product, design, and engineering teams to deliver high-quality software solutions.


Key Responsibilities


Backend Development

• Design and develop scalable microservices using Java and Spring Boot.
• Build and maintain RESTful APIs supporting web and mobile applications.Implement secure, reliable, and high-performance backend services.
• Develop data access layers using SQL and NoSQL databases.
• Integrate internal and external services through APIs and event-driven architectures.

Frontend Development

• Build modern user interfaces using React with TypeScript.
• Develop reusable and scalable UI components using modern React patterns (Hooks, Functional Components).
• Implement state management using tools such as Redux, Zustand, or Context API.
• Integrate frontend applications with backend REST APIs.
• Ensure performance optimization, accessibility, and responsive design.

Architecture & System Design

• Participate in architecture discussions and system design reviews.
• Design modular and scalable application architectures.
• Implement best practices for performance, reliability, and security.

Cloud & DevOps

• Deploy and manage applications in cloud environments (AWS, GCP, or Azure).
• Implement CI/CD pipelines to support automated testing and deployments.
• Use containerization technologies such as Docker and Kubernetes.
• Implement monitoring, logging, and observability solutions.

Collaboration & Leadership

• Work closely with product managers, designers, and QA engineers.
• Conduct code reviews and enforce engineering best practices.
• Mentor junior engineers and contribute to engineering standards.
• Drive improvements in system architecture, performance, and developer productivity.

Required Qualifications

• 10+ years of professional software development experience
• Strong expertise in Java and Spring Boot
• Experience designing and building RESTful APIs and microservices
• Strong frontend development experience using React with TypeScript
• Deep understanding of TypeScript, modern JavaScript (ES6+), HTML5, and CSS
• Experience with SQL databases (PostgreSQL, MySQL, Oracle).
• Experience with NoSQL databases (MongoDB, Redis, DynamoDB).
• Experience building cloud-native applications
• Strong understanding of software design patterns and system architecture

Preferred Qualifications

• Experience with event-driven architectures and messaging systems (Kafka, RabbitMQ).
• Experience with GraphQL APIs.
• Experience with testing frameworks (JUnit, Jest, React Testing Library).
• Experience with observability tools (Datadog, Prometheus, Grafana).
• Familiarity with security frameworks and authentication (OAuth2, JWT).
• Experience working in Agile/Scrum environments.

Key Technologies


Backend:

• Java
• Spring Boot
• REST APIs
• Microservices
• SQL / NoSQL databases

Frontend:

• React
• TypeScript
• Redux / Zustand/ Context API
• HTML5 / CSS3

Infrastructure:

• AWS / GCP / Azure
• Docker
• Kubernetes
• CI/CD pipelines