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Mid Level Backend Developer Jobs in Maryland (NOW HIRING)

Leidos

Mid-Level Backend Software Engineer

Gaithersburg, MD · On-site

$87.10K - $157.45K/yr

We're hiring a Backend Software Engineer to support a high‑visibility, data‑driven application ... Identify, debug, and resolve application-level defects and performance issues * Code Quality:

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How much do mid level backend developer jobs pay per hour?

As of May 28, 2026, the average hourly pay for mid level backend developer in Maryland is $56.03, according to ZipRecruiter salary data. Most workers in this role earn between $45.96 and $66.25 per hour, depending on experience, location, and employer.

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

To thrive as a Mid Level Backend Developer, you need strong programming skills in languages like Java, Python, or Node.js, a solid understanding of server-side logic, and experience with relational and non-relational databases. Familiarity with frameworks (such as Spring or Express), RESTful API development, version control systems (like Git), and containerization tools (like Docker) is typically required. Effective problem-solving, collaboration, and clear communication are standout soft skills for this role. These abilities are crucial for building reliable, scalable backend systems and working efficiently within development teams.

What are some typical challenges a Mid Level Backend Developer might face when working on large-scale applications?

As a Mid Level Backend Developer, you may frequently encounter challenges related to maintaining code quality and ensuring scalability as applications grow. Managing database performance, optimizing API responses, and integrating with legacy systems are common tasks that require both technical skill and problem-solving ability. Collaboration with frontend developers, DevOps engineers, and QA testers is essential to ensure smooth deployments and consistent user experiences. Staying up-to-date with new frameworks and technologies, while balancing project deadlines, is also a key part of the role.

What are Mid Level Backend Developers?

Mid Level Backend Developers are software engineers who specialize in developing and maintaining the server-side logic, databases, and APIs that power web and mobile applications. They usually have a few years of professional experience and are proficient in programming languages like Java, Python, Node.js, or Ruby. These developers are responsible for ensuring that data flows efficiently between the server and users, optimizing performance, and collaborating with front-end developers and other team members. Their role often includes troubleshooting server issues, writing automated tests, and implementing security best practices.

What is the difference between Mid Level Backend Developer vs Junior Backend Developer?

AspectMid Level Backend DeveloperJunior Backend Developer
Experience2-4 years0-2 years
SkillsProficient in backend frameworks, databases, API developmentBasic understanding of backend concepts, learning frameworks
ResponsibilitiesDeveloping features, troubleshooting, code reviewsAssisting in tasks, learning codebase, bug fixing
Work EnvironmentCollaborates with teams, independent problem-solving

The main difference between a Mid Level Backend Developer and a Junior Backend Developer lies in experience and skill level. Mid level developers have more hands-on experience, handle complex tasks independently, and contribute significantly to project development. Junior developers are still learning, focusing on foundational tasks and gaining industry knowledge. This distinction helps employers identify the right candidate for different stages of project involvement.

What are the most commonly searched types of Backend Developer jobs in Maryland? The most popular types of Backend Developer jobs in Maryland are:
What cities in Maryland are hiring for Mid Level Backend Developer jobs? Cities in Maryland with the most Mid Level Backend Developer job openings:
Mid Level Backend Developer jobs near you
Mid-Level Back-End Developer (Onsite)

Mid-Level Back-End Developer (Onsite)

ATD Technology LLC

Fort George G Meade, MD • On-site

Other

This job post has expired today. Applications are no longer accepted.

Job description

Executive Summary:
The client is looking for an experienced Mid-Level Back End Developer to support mission-critical national security and operational readiness programs through back-end software development, API design, and cloud-based system integrations.
Position Description:
As a Mid-Level Back End Developer, you will design and develop back-end architectures, build RESTful APIs, and perform data modeling while participating in Agile PI planning and ensuring system compliance within a DevSecOps environment.
Position Responsibilities:
  • Provide subject matter proficiency supporting back-end software development activities.
  • Apply analytical skills supporting process improvement, specialized studies, and requirements definition.
  • Perform analysis, planning, and development of requirements documents and functional models.
  • Design and develop back-end architectures supporting system capabilities and integrations.
  • Develop and modify RESTful APIs supporting application functionality.
  • Perform database management, data modeling, and optimization.
  • Support testing and validation to verify system operability and compliance.
  • Participate in Agile program increment (PI) planning and activities requiring periodic travels.
Required Qualifications:
  • Active TS/SCI clearance.
  • Bachelor's degree in a related field (A Master's degree may substitute for 2 years of experience).
  • 7 years of software development experience in object-oriented and scripted languages with the ability to apply DevSecOps, microservices, and container tool suites.
  • 5 years of experience with Jenkins and GitLab.
  • 5 years of experience with at least five (5) of the following: Postgres, RDS, Exodus, Python, Luna, Java, Docker, OpenJDK, Ansible, Packer, Maven, Kubernetes, Red Hat.
  • 3 years of experience with bug tracking software (Jira).
  • 3 years of experience testing web-based applications.
  • 3 years of experience participating in software development programs or projects.
  • 3 years of experience performing back-end web design and development.
  • 3 years of experience with AWS Infrastructure, Kubernetes, and RedHat Linux.
  • Demonstrated experience with relational databases, RESTful API development and communication, and system integrations.
  • Demonstrated experience in preparing, conducting, and documenting various systems tests and results to verify system operability and compliance.
  • Practical experience developing in a cloud environment.
  • Experience with integrating data from unclassified to classified application deployments.
Desired Qualifications:
  • 5 years of experience with CI/CD software development.
  • Experience using Agile Test-Driven development.
  • Experience integrating into DoW DevSecOps environments.
  • Demonstrated experience in utilizing UX design tool suites (e.g., Sketch, InVision).
  • Experience structuring data so it can be integrated into machine learning technologies or AI capabilities.

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