Senior Java Backend Developer

Select Minds LLC•Phoenix, AZ

23h•$120,000 - $130,000•Onsite

About The Position

We are seeking a Senior Backend Software Engineer with strong hands-on experience in Java, Spring Boot, Microservices, Distributed Systems, Kafka, and REST APIs. The role focuses on building secure, scalable, reliable, and high-performance backend services for digital banking platforms.

Requirements

8+ years of software development experience.
Strong Java and Spring Boot experience.
Hands-on experience with Microservices and Distributed Systems.
Experience with REST APIs, JSON, XML, and integration patterns.
Strong experience with Kafka / Kafka Streams.
Experience with Spring Batch, JUnit, JDBC, Maven/Gradle.
Experience with Jenkins, Git, and CI/CD.
Experience with PostgreSQL, MongoDB, or NoSQL databases.
Experience with Docker and cloud/platform environments.
Strong communication and problem-solving skills.

Nice To Haves

Experience with GenAI, LLM, RAG, embeddings, or vector search.
AWS and cloud-native architecture experience.
Experience with Redis / Cassandra.
Knowledge of MCP and AI guardrails.
Banking, fintech, payment, or financial services experience.
Experience with Python, Hadoop, or Spark.

Responsibilities

Design and develop scalable Java microservices and REST APIs.
Build distributed, event-driven systems using Kafka.
Develop reliable and high-performance backend services.
Implement fault tolerance, resiliency, caching, and high-availability solutions.
Participate in architecture, design, and code reviews.
Support CI/CD, automated testing, and production readiness.
Collaborate with engineering, product, architecture, and operations teams.
Mentor engineers and provide technical guidance.