Backend Developer

Infobahn SoftWorld Inc; Mountain View (CA); On-site; USD 170,000 - 240,000; Full time

Job summary

Infobahn SoftWorld Inc in the Bay Area seeks a Sr. Backend Developer to design and build scalable Java-based microservices. You will leverage Spring Boot, Kafka, and AWS to deliver high-performance backend systems and APIs.

The ideal candidate has 9+ years of experience, strong knowledge of distributed systems, design patterns, and practical DevOps in Agile environments. You will collaborate with cross-functional teams to drive robust, secure, and maintainable solutions.

Qualifications

• 9+ years of backend development experience.
• Strong Java, Spring Framework and Spring Boot expertise.
• Experience building REST APIs with secure auth (OAuth2/JWT).
• Hands-on Kafka for real-time data streaming.
• MongoDB and Oracle database design and queries.
• Proficient in AWS Cloud Services (EC2, Lambda, API Gateway, S3).
• Solid data structures, algorithms and performance tuning.
• Strong architectural mindset in distributed systems.
• Familiar with Agile/Scrum and DevOps practices.

Responsibilities

• Design, develop, and maintain scalable backend systems using Java and Spring Boot.
• Build secure RESTful APIs with OAuth2/JWT authentication and authorization.
• Develop real-time data streaming with Apache Kafka and manage topics/consumers/producers.
• Design and optimize MongoDB and Oracle schemas and queries.
• Participate in architecture discussions to ensure modularity and scalability.
• Apply design patterns to solve complex engineering challenges.
• Collaborate in an Agile/Scrum environment with sprint planning and code reviews.
• Support CI/CD pipelines and maintain code quality with automated testing.

Skills

Java

Spring Boot

REST APIs

Kafka

AWS

Distributed systems

Design patterns

Agile/Scrum

Performance tuning

Tools

MongoDB

Oracle

AWS services

Job description

Job Title: Sr. Backend Developer

Overall 6+ yrs of exp is required; Looking for senior folks

Job Overview

We are seeking a highly skilled Backend Developer with strong hands-on experience in Java, Spring Boot, Kafka, and AWS. The ideal candidate will have a solid foundation in backend engineering, deep understanding of design patterns, and expertise in building scalable, event-driven, cloud-based microservices. This is a long-term engagement with a leading client based in the Bay Area, CA.

Key Responsibilities

• Design, develop, and maintain scalable and high-performance backend systems using Java and Spring Boot.
• Build and secure RESTful APIs with robust authentication and authorization mechanisms (OAuth2, JWT, etc.).
• Develop real-time data streaming and messaging solutions using Apache Kafka (topics, partitions, consumers, producers, offsets).
• Design and optimize database schemas and queries for MongoDB and Oracle databases.
• Participate in architectural discussions to ensure modularity, scalability, and maintainability of backend systems.
• Apply advanced design patterns (e.g., Factory, Strategy, Observer, Adapter, etc.) to solve complex engineering challenges.
• Collaborate closely in an Agile/Scrum environment-participating in sprint planning, code reviews, and daily stand-ups.
• Support CI/CD pipelines and maintain code quality through continuous integration and automated testing.

Required Skills & Qualifications

• Strong proficiency in Core Java (Java 8 or higher), Spring Framework, and Spring Boot.
• Proven experience developing REST APIs with secure authentication/authorization methods.
• Hands-on expertise with Apache Kafka, including real-time data processing and error-handling mechanisms.
• Experience with MongoDB, Oracle, and modern database design principles.
• Proficiency in AWS Cloud Services (EC2, Lambda, API Gateway, S3, etc.).
• Solid understanding of data structures, algorithms, and performance tuning.
• Strong architectural mindset with the ability to design scalable and fault-tolerant backend systems.
• Excellent communication and collaboration skills to work effectively with cross-functional teams.

Ideal Candidate Profile

• 9+ years of professional backend development experience.
• Prior experience in distributed systems and event-driven architecture.
• Passionate about clean code, modular design, and best engineering practices.
• Comfortable working in Agile/Scrum environments with modern DevOps practices.