Senior Java Backend Developer

Select Minds LLC; Phoenix (AZ); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Onsite

Competitive salary

Opportunity for advancement

Job summary

Select Minds LLC in Phoenix, AZ is seeking a Senior Backend Software Engineer focused on Java, Spring Boot, and microservices. You will design scalable systems for digital banking, build REST APIs, and drive reliability with Kafka-driven, event-based architectures.

Onsite requirement: minimum 3 days/week, Day 1 onsite. Ideal candidates have 8+ years of experience, strong Java/Spring Boot skills, and hands-on experience with distributed systems, CI/CD, and cloud deployments.

Qualifications

• 8+ years of software development experience.
• Strong Java and Spring Boot experience.
• Hands-on 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.

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.

Skills

Java

Spring Boot

Microservices

Distributed Systems

Kafka

REST APIs

Docker

CI/CD

PostgreSQL

MongoDB

NoSQL

Jenkins

Git

Cloud

Tools

Maven/Gradle

JUnit

Spring Batch

Docker

Job description

Benefits:

• ONSITE
• Competitive salary
• Opportunity for advancement

Senior Java Backend Developer – Digital Banking

Location: Phoenix, AZ Work Arrangement: Day 1 Onsite – Minimum 3 Days/Week Experience: 8+ Years

Important : This is a Day 1 Onsite position in Phoenix, AZ. Candidates must be available to work onsite a minimum of 3 days per week.

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.

Key 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.

Required Skills

• 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.

Preferred Skills

• 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.

Core Technology Stack

• Languages & Frameworks: Java (JDK 17–25), Spring Boot
• APIs & Integration: REST / RPC APIs
• Messaging & Streaming: Kafka, Kafka Streams
• Databases: PostgreSQL, MongoDB, Redis, Cassandra
• DevOps & CI/CD: Jenkins, GitLab, CI/CD
• Containers & Cloud: Docker, Cloud/Platform Environments
• Architecture: Microservices, Distributed Systems, Resiliency
• Engineering: Observability, Performance Optimization, Automated Testing

Flexible work from home options available.