Note: The job is a remote job and is open to candidates in USA. Intellibus engineers platforms that support large-scale financial trading systems and enterprise applications. The company is seeking a highly experienced Principal Java Backend Engineer to modernize and optimize enterprise financial platforms, build scalable distributed systems, improve application and database performance, and lead production remediation initiatives.

Responsibilities

• Design and develop highly scalable enterprise-grade Java backend applications
• Build and optimize distributed systems capable of processing millions of financial transactions
• Modernize legacy enterprise applications into cloud-native Java services
• Identify and resolve application performance bottlenecks across Java services, APIs, databases, and distributed systems
• Tune complex SQL queries, execution plans, indexing strategies, and database performance
• Develop scalable REST APIs and microservices using Spring Boot
• Design resilient, highly available backend services for mission-critical financial platforms
• Work on enterprise remediation initiatives, technical debt reduction, and platform modernization
• Develop and optimize high-throughput data processing and reporting platforms
• Design cloud-native solutions using AWS services
• Work closely with Architects, Product Managers, Business Analysts, and Engineering Leadership to translate business requirements into scalable technical solutions
• Lead production troubleshooting, root cause analysis, and performance optimization initiatives
• Mentor engineers while maintaining a strong hands-on engineering presence
• Champion clean architecture, reusable frameworks, CI/CD automation, and engineering best practices
• Modernized critical enterprise Java applications through remediation and optimization initiatives
• Improved scalability, resiliency, and performance of distributed backend services
• Reduced SQL execution times through advanced query tuning and indexing strategies
• Enhanced production stability through root cause analysis and performance engineering
• Contributed to cloud modernization initiatives using AWS technologies
• Established yourself as a trusted hands-on technical leader who drives engineering excellence while remaining deeply involved in production code

Skills

• • Bachelor's degree in Computer Science (or equivalent experience)
• • 12+ years of hands-on Java backend development experience
• • Expert-level Java development (Java 11/17+ preferred)
• • Extensive experience with Spring Boot, Spring Framework, REST APIs, and Microservices
• • Strong expertise in Object-Oriented Design, Design Patterns, Multithreading, Concurrency, Collections, and JVM Performance Tuning
• • Strong experience building high-performance distributed systems
• • Experience modernizing legacy enterprise applications
• • Strong SQL optimization, query tuning, execution plans, indexing strategies, and database performance analysis
• • Experience supporting enterprise production environments and remediation initiatives
• • Strong AWS experience including:
• • AWS Lambda
• • Amazon S3
• • Strong understanding of distributed systems, scalability, resiliency, and high availability
• • Experience with asynchronous messaging and event-driven architecture (Kafka preferred)
• • Experience with Git, Maven, Gradle, Jenkins, and CI/CD pipelines
• • Excellent debugging, profiling, and production support experience
• • Experience working in Financial Services, Banking, Capital Markets, FinTech, or Technology Consulting
• • Experience with Business Rules Engines (Drools, ILOG, Blaze Advisor, etc.)
• • Experience with Apache Parquet
• • Experience with Jasper Reports
• • Experience building enterprise ETL or large-scale data processing platforms
• • Amazon Redshift (Preferred)

Company Overview

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