Backend Software Engineer — Python/Java & REST APIs

Quantum Technologies. LLC; Mendota Heights (MN); On-site; USD 90,000 - 130,000; Full time

Job summary

Quantum Technologies. LLC is seeking a Software Engineer to design, build, test, deploy, and support scalable software applications and services. Proficient in Python and Java, REST APIs, microservices, databases (PostgreSQL, SQL Server, MySQL, MongoDB), and modern web technologies.

You’ll work with cloud platforms, Linux, Docker, and CI/CD, collaborating with product, business, quality, and data teams to translate requirements into reliable solutions.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field.
• Experience developing REST APIs and working with Spring Boot or a comparable application framework.
• Familiarity with one relational database and one NoSQL database.
• Familiarity with Git, Linux, software testing, Agile delivery, and the software development life cycle.
• Ability to analyze requirements, troubleshoot issues, and deliver independently while collaborating across teams.

Responsibilities

• Design and develop backend services, REST APIs, and modular or microservice-based applications using Python and/or Java.
• Design data access layers and integrations for PostgreSQL, SQL Server, MySQL, MongoDB, or comparable databases.
• Write clean, maintainable, testable code using object-oriented design, SOLID principles, defensive validation, and appropriate error handling.
• Create unit and integration tests; participate in code reviews, defect resolution, release readiness, and production support.
• Containerize and deploy applications using Docker and CI/CD pipelines across cloud or Linux environments.
• Use Git, Maven, Swagger/OpenAPI, Postman, and Jira to support development, documentation, testing, and delivery tracking.
• Collaborate within Agile/Scrum teams and communicate technical tradeoffs, delivery risks, dependencies, and progress.

Skills

Python

Java

REST APIs

microservices

Linux

Docker

CI/CD

Git

Spring Boot

SQL

NoSQL

PostgreSQL

MongoDB

OpenAPI

Swagger

Postman

Jira

Agile

SDLC

JPA

Hibernate

Maven

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

Docker

Git

Maven

Swagger/OpenAPI

Postman

Jira

Job description

Quantum Technologies. LLC is seeking a Software Engineer to design, build, test, deploy, and support scalable software applications and services. Proficient in Python and Java, REST APIs, microservices, databases (PostgreSQL, SQL Server, MySQL, MongoDB), and modern web technologies.

You’ll work with cloud platforms, Linux, Docker, and CI/CD, collaborating with product, business, quality, and data teams to translate requirements into reliable solutions.