Senior Java Developer: Big Data, Spring Boot & Kafka

Akaasa Technologies; Fremont (CA); Hybrid; USD 120,000 - 150,000; Full time

Job summary

Akaasa Technologies is seeking a Java Developer to join our Fremont, CA team with 1-3 days per week onsite.

You will implement advanced Java applications, focus on multithreading, big data handling, and scalable REST APIs using Spring Boot and Spring Batch. Strong knowledge of RDBMS, Kafka or MQTT, and quality-first software practices are essential.

Candidates should demonstrate clean code, automated tests, and reusable components to support robust enterprise systems.

Qualifications

• Advanced Level experience (4+ years) with Java programming language. Python a plus.
• Expertise in Java multithreading and tuning of Java processes.
• Experience in writing code that can handle Big Data and large files.
• Experience with RDBMS systems.
• Experience with Spring Boot, Spring Batch
• Experience with using message brokers Kafka and/or MQTT
• Deep understanding of API and technologies like REST, JSON, XML, message queues and integration pattern/frameworks.
• Rigor in high quality code, automated testing, and other engineering best practices, ability to write reusable code components.

Skills

Java

Python

Multithreading

Big Data

RDBMS

Spring Boot

Spring Batch

Kafka

MQTT

REST API

Testing

Code quality

Job description

Akaasa Technologies is seeking a Java Developer to join our Fremont, CA team with 1-3 days per week onsite.

You will implement advanced Java applications, focus on multithreading, big data handling, and scalable REST APIs using Spring Boot and Spring Batch. Strong knowledge of RDBMS, Kafka or MQTT, and quality-first software practices are essential.

Candidates should demonstrate clean code, automated tests, and reusable components to support robust enterprise systems.