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Mid Level Back End Developer Jobs in Arizona (NOW HIRING)

Leidos

Mid-Level Backend Software Engineer

Tucson, AZ · On-site

They are seeking a Mid-Level Backend Software Engineer to design, develop, and maintain backend application components and RESTful APIs, ensuring system reliability and performance for mission ...

Leidos

Mid-Level Backend Software Engineer

Tucson, AZ · On-site

$87K - $157K/yr

If you've been building your skills in backend development, objectoriented programming, and ... Identify, debug, and resolve application-level defects and performance issues * Code Quality:

Leidos

Mid-Level Software Engineer

Tucson, AZ · On-site

Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django ... Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar. #Chinook ...

Leidos

Mid-Level Software Engineer

Tucson, AZ · On-site

$87K - $157K/yr

Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django ... Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar. #Chinook ...

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Mid Level Back End Developer information

What is the difference between Mid Level Back End Developer vs Junior Back End Developer?

AspectMid Level Back End DeveloperJunior Back End Developer
Experience2-4 years0-1 year
SkillsProficient in server-side languages, database management, API developmentBasic understanding of backend technologies, learning core concepts
ResponsibilitiesDeveloping features, optimizing performance, troubleshootingAssisting in development tasks, learning codebase, fixing minor bugs
Work EnvironmentIndependent task handling, collaboration with teamsSupervised tasks, mentorship, learning-focused

The Mid Level Back End Developer typically has more experience and handles complex tasks independently, while the Junior Back End Developer is in the early stages of their career, focusing on learning and assisting with basic tasks.

What are the key skills and qualifications needed to thrive as a Mid Level Back End Developer, and why are they important?

To thrive as a Mid Level Back End Developer, you need proficiency in server-side languages (such as Java, Python, or Node.js), database management, and a solid understanding of API design and data structures, usually supported by a relevant degree or equivalent experience. Familiarity with frameworks (like Spring Boot or Express), version control systems (such as Git), and containerization tools (like Docker) is typically expected. Strong problem-solving abilities, communication skills, and the ability to collaborate effectively with cross-functional teams make you stand out in this role. These skills ensure robust, scalable backend systems and efficient teamwork, both of which are vital for delivering high-quality software products.

What are the typical responsibilities and collaboration points for a Mid Level Back End Developer within a software development team?

As a Mid Level Back End Developer, your daily responsibilities often include designing, implementing, and maintaining server-side logic, APIs, and database schemas. You will regularly collaborate with front-end developers to ensure seamless data exchange and with DevOps engineers to optimize deployment pipelines. Mid level roles also involve code reviews, troubleshooting, and contributing to architectural decisions. This position provides opportunities to mentor junior developers and work closely with product managers to translate business requirements into technical solutions.

What are Mid Level Back End Developers?

Mid Level Back End Developers are software professionals who specialize in server-side development, typically with 2-5 years of experience. They design, build, and maintain the logic, databases, and APIs that power web and mobile applications. Unlike entry-level developers, they are expected to work independently on complex features, contribute to architectural decisions, and collaborate closely with front end developers. Their work ensures that applications are scalable, secure, and efficient, making them an essential part of any software development team.
What are the most commonly searched types of Back End Developer jobs in Arizona? The most popular types of Back End Developer jobs in Arizona are:
What are popular job titles related to Mid Level Back End Developer jobs in Arizona? For Mid Level Back End Developer jobs in Arizona, the most frequently searched job titles are:
What job categories do people searching Mid Level Back End Developer jobs in Arizona look for? The top searched job categories for Mid Level Back End Developer jobs in Arizona are:
Mid Level Back End Developer jobs near you
Infographic showing various Mid Level Back End Developer job openings in Arizona as of July 2026, with employment types broken down into 1% As Needed, 79% Full Time, 17% Part Time, and 3% Contract. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution.

Mid-Level Backend Software Engineer

Leidos

Tucson, AZ • On-site

Full-time

Re-posted 18 days ago

Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 151 frontline employees who took The Breakroom Quiz

75th of 481 rated business services

Job description

Job Summary:
Leidos is a leading technology company focused on mission-driven engineering and analytics. They are seeking a Mid-Level Backend Software Engineer to design, develop, and maintain backend application components and RESTful APIs, ensuring system reliability and performance for mission stakeholders.
Responsibilities:
• Backend Development: Design, develop, test, and maintain backend application components using Java or Python
• REST API Development: Develop and maintain RESTful services to support application functionality and system integrations
• Object-Oriented Programming: Apply object-oriented design principles to build scalable and maintainable systems
• Database Development: Write and modify SQL queries to support application functionality and data retrieval
• Data Source Collaboration: Collaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systems
• Linux Environments: Develop and troubleshoot applications within Linux-based environments
• Data Processing & Business Logic: Implement backend logic for data transformation, processing, and system workflows
• Bug Fixing & Enhancements: Identify, debug, and resolve application-level defects and performance issues
• Code Quality: Follow coding standards, participate in code reviews, and support documentation efforts
Qualifications:
Required:
• Bachelor’s degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience; or a Master’s degree with 2–6 years of experience
• US Citizenship
• Active TS/SCI with the ability to successfully pass a Polygraph
• Professional experience developing object‑oriented applications in Java or Python
• Hands‑on experience building and maintaining RESTful APIs
• Basic to moderate experience with SQL capability, including writing queries and working with relational databases
• Working knowledge of Linux‑based environments
• Ability to work independently on defined tasks within established technical frameworks and deliver reliable results
Preferred:
• Experience with Apache Airflow or similar workflow orchestration technologies
• Experience with Spring Boot, Django, or similar backend frameworks
• Exposure to CI/CD pipelines (GitLab, Jenkins, etc.)
• Familiarity with containerization (Docker, OpenShift)
• Exposure to cloud environments (AWS or Azure)
• Experience working in Agile development environments
Company:
Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations. Founded in 1969, the company is headquartered in Reston, USA, with a team of 10001+ employees. The company is currently Late Stage.

What Leidos employees say

Pay

Benefits

Hours and flexibility

Workplace

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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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