Interesting Job Opportunity: Ionixx Technologies - Senior Backend Engineer - Java/Spring Boot - Banking & Fintech Domain

Actively Reviewing the Applications

Ionixx Technologies

4–8 years

Posted 3 days ago • Apply by June 11, 2026

Job Description

Senior Backend Engineer/Java API Developer

Experience : 10+ Years (Banking and Fintech Domain)

Employment Type : [Full-time -Remote]

Job Overview

We are seeking a highly experienced Senior Backend Engineer with over 10 years of experience in backend development, specifically using Java, PostgreSQL, AWS core services, and Apache Kafka. The ideal candidate will have a strong background in designing, developing, and maintaining scalable APIs and distributed systems in a cloud-based environment.

Key Responsibilities

Design, develop, and maintain scalable and secure RESTful APIs using Java (Spring Boot or similar frameworks).
Optimize and manage PostgreSQL databases, including schema design, indexing, and performance tuning.
Build and maintain data pipelines and real-time processing systems using Apache Kafka.
Leverage AWS core services (e.g., EC2, S3, Lambda, RDS, CloudWatch, and DynamoDB) to build cloud-native applications.
Collaborate with cross-functional teams, including product managers, front-end developers, and QA, to deliver high-quality software.
Participate in code reviews and design discussions and mentor junior team members.
Troubleshoot production issues and ensure high system availability and performance.

Required Qualifications

10+ years of hands-on experience in backend development.
Strong proficiency in Java, with experience in frameworks like Spring Boot, Dropwizard, or similar.
Deep understanding of PostgreSQL: SQL queries, indexing, performance optimization, and database design.
Hands-on experience with Apache Kafka for building event-driven and real-time applications.
Proven experience working with AWS core services in a production environment.
Solid understanding of microservices architecture, security best practices, and REST API standards.
Experience with version control systems like Git and CI/CD tools.
Strong problem-solving skills and the ability to work independently or in a team.

Preferred Qualifications

Experience with containerization tools like Docker and orchestration tools like Kubernetes.
Exposure to monitoring and logging tools like Prometheus, Grafana, CloudWatch, or the ELK stack.
Experience working in Agile/Scrum environments.

(ref:hirist.tech)