Senior Java Software Engineer

Alpine Solutions Group; Chicago (IL); On-site; USD 120,000 - 180,000; Full time

Job summary

Alpine Solutions Group in Chicago seeks a senior backend Java developer to own and advance the backend stack. You will drive high-throughput, low-latency services and mentor teammates while shaping architecture. Strong Spring Boot and cloud experience are essential.

Experience with Kubernetes, PostgreSQL, RabbitMQ, and WebSocket-based APIs will be highly valued as you build scalable fintech-style platform components.

Qualifications

• 4+ years as backend developer with expert level Java
• Strong communication skills
• Experience building high-throughput, low-latency systems (10k+ msgs/sec)
• Advanced Java knowledge: concurrency, memory, JVM performance
• Senior/lead or principal developer with mentoring responsibility
• Willingness to grow into a director role
• Solid unit testing with JUnit
• From small team within large company or startup
• Cloud experience (AWS, Azure or GCP)
• Experience with at least one SQL relational database
• Bachelor's degree in Computer Science

Responsibilities

• Lead backend development and own the backend stack
• Mentor junior engineers on the team
• Collaborate on architecture and performance optimizations
• Build APIs and real-time features (WebSocket) for frontend

Skills

Java expert

Concurrency

JVM tuning

JUnit Testing

AWS

Azure

GCP

PostgreSQL

Spring Boot

Kubernetes

RabbitMQ

WebSocket

Mentoring

Architecture understanding

Fintech

Education

Bachelor's in Computer Science

Tools

Kubernetes

PostgreSQL

Docker

Postman

RabbitMQ

Job description

• 4+ years as a backend developer, specifically with java – EXPERT LEVEL HARD CORE JAVA DEVELOPMENT, should be doing java all day every day
• Great communication
• Experience building systems that handle high throughput and low latency in production environments (10k+ msgs/sec, low-millisecond latencies).
• Strong Java proficiency, including solid understanding of concurrency, memory management, JVM behavior, and performance optimization.
• Has been a senior/lead or principal developer (eventually will mentor backend devs) and comfortable with being the main backend developer currently on the team (ability to understand architecture while being a strong developer)
• Aspirations to grow into a director role
• Strong experience with Unit testing with J-unit
• Either comes from a small team within a large company, or comes from a small start up
• Experience in the cloud with one of these cloud enviroments: AWS, Azure, or GCP
• Experience with at least one type of SQL relational database
• Bachelor's in Comp Sci

PLUS:

• FIX Protocal experience
• Experience with derivative contracts (futures, options) and financial markets
• Must understand how Kubernetes or containerized applications work (microservices)
• Extensive experience in relational databases (PostgreSQL)
• Expert with spring boot development
• Fintech
• Websocket experience , build out api’s for the front end of the platform
• Experience with rabbit mq, or other messaging platforms
• Start ups
• Used Postman for testing
• Ability to write PostgreSQL queries manually