Haystack
← Back to Jobs
Technology

Senior Java Backend Engineer

SSV Technologies IncPhoenix, AZ🇺🇸United StatesPosted 31 Jul 2026

Why This Role Stands Out

This hybrid role offers a fantastic opportunity to shape the future of commerce and personal finance within a renowned company, developing innovative applications for millions of customers. You'll thrive here if you're a passionate Java backend engineer with 6-10 years of experience, driven by elegant code, complex problem-solving, and collaborative teamwork. Don't miss out on the chance to grow your career with SSV Technologies Inc. and apply today!

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Minimum Experience: 6
Maximum Experience 10
Experience 6 to 10 Years
Location: Phoenix, AZ, USA
 
Job Description:
We know that with the right backing, people and businesses have the power to progress in incredible ways. Whether we’re supporting our customers’ financial confidence to move ahead, taking commerce to new heights, or encouraging people to explore the world, our colleagues are constantly redefining what’s possible - and we’re proud to back each other every step of the way. When you join #TeamAmex, you become part of a diverse community of over 60,000 colleagues, all with a common goal to deliver an exceptional customer experience every day.
We’re looking for an experienced Java Backend Engineer to join a top talent team working on a fast-evolving set of experimental and new applications, services and platforms that is serving tens of millions of customers around the world. Someone who is passionate about shaping the future of commerce and personal finance; Someone who is obsessive about good design and great code; Someone who can find elegant solutions to hard technical and functional challenges and can work well within and across teams.
 
Responsibilities:
* Serve as a senior member of an agile development team that drives user story analysis and elaboration.
* Design and develop software solutions, think abstractly and deal with ambiguounder-defined problems.
* Foster the spirit of collaboration across multiple internal teams.
* Participate in solution architecture, code reviews, ad-hoc pair programming; contribute to iterative improvement of tools, automation and practices used by team.
* Mentor and lead team members.
 
Qualifications:
* Familiarity with AI models and experience using Gen AI tools such as Copilot, Claude Code and Codex
* Proven expertise in REST API design and implementation.
* Proven expertise in with SOA, Micro-Services, Containers.
* Experience with Stream processing/Queue - Solace, Kafka.
* Experience with Databases – MongoDB (Or a different Document DB/ NoSQL), PostgreSQL.
* Familiar with tools - Git, Jenkins, IntelliJ IDEA, Jira, Confluence.
* Familiarity with security principles, SSL, Cryptography.
* 9+ years of experience with Java backend (J2EE). Nice to have Kotlin experience
* 5+ Years Reactive Programing (asynchronous programming paradigm) ideally with Spring boot WebFlux, Vert.x and RxJava
* Experienced building on at-least one of cloud platforms - Amazon AWS, Microsoft Azureand Google Cloud Platform
* A BS or MS degree in Computer Science, Computer Engineering or similar discipline, or equivalent work experience
* Experience building and supporting distributed highly available systems.
* Good communication skills.
* High energy and ‘can-do’ attitude.
* Interest in new technologies and tools, industry best practices.
* Passion for shipping quality software fast and frequently.
* Attention to detail. 
 

Skills

MongoDB
Spring
Spring Boot
AWS
Agile
Confluence
Git
Google Cloud
Java
Jenkins
Jira
Kafka
Kotlin
Phoenix
PostgreSQL
REST

Similar jobs