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Mid Level Backend Developer Jobs in Washington (NOW HIRING)

ActioNet

Mid Level Developer

Arlington, VA

Secret The Software Developer is responsible for designing, developing, and maintaining software applications that support business and technical requirements. This role works closely with ...

ActioNet, Inc.

Mid Level Developer

Rosslyn, VA · On-site

$179K/yr

Secret The Software Developer is responsible for designing, developing, and maintaining software applications that support business and technical requirements. This role works closely with ...

VTG

Software Engineer

Hanover, MD · On-site

Overview VTG, is seeking a Mid-Level Software Engineer to support a mission-focused customer ... Experience developing enterprise-level backend systems. * Experience working with databases and ...

ActioNet

Mid Level Developer

Rosslyn, VA

$179K/yr

Secret The Software Developer is responsible for designing, developing, and maintaining software applications that support business and technical requirements. This role works closely with ...

Staffed4U

Mid Level Backend Software Engineer- Java

Laurel, MD · On-site +1

$51.50 - $70.75/hr

Software Engineer I (SWE-1) Location: Laurel, MD Employment Type: Full-Time Work Schedule: Onsite ... Develop backend and web-based applications using Java and C#/.NET technologies. * Build and ...

ActioNet

Mid Level Developer

Rosslyn, VA

$179K/yr

Secret The Software Developer is responsible for designing, developing, and maintaining software applications that support business and technical requirements. This role works closely with ...

C-MCI

Java Backend Developer - Senior

Ashburn, VA · On-site

$123K - $160K/yr

... Mid-Level Java Developer will participate in system architecture design, systems engineering ... backend application involving extensive messaging and transaction processing • Design and ...

West 4th Strategy

Backend Developer

Bethesda, MD · On-site

... field-level metadata * Support Government data migration objectives by providing source-to-target ... Strong backend engineering competencies in secure microservice development, API enablement, and ...

West 4th Strategy

Backend Developer

Bethesda, MD · On-site

$110 - $115/hr

... field-level metadata * Support Government data migration objectives by providing source-to-target ... Strong backend engineering competencies in secure microservice development, API enablement, and ...

West 4th Strategy

Backend Developer

Bethesda, MD · On-site

... field-level metadata * Support Government data migration objectives by providing source-to-target ... Strong backend engineering competencies in secure microservice development, API enablement, and ...

Mondo

Mid Level Full Stack Developer

Washington, DC · Remote

$55 - $65/hr

Mid-Level Full Stack Developer, location is Remote. The start date is August 17 for this contract ... This role is approximately a 50/50 split between frontend and backend development, with a strong ...

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All JobsMid Level Backend Developer JobsMid Level Backend Developer Jobs in Washington

Mid Level Backend Developer information

See Washington salary details

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

As of Aug 19, 2026, the average hourly pay for mid level backend developer in Washington is $65.39, according to ZipRecruiter salary data. Most workers in this role earn between $53.65 and $77.31 per hour, depending on experience, location, and employer.

What is a mid level backend developer?

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 are the key skills and qualifications needed to thrive as a mid level backend developer?

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 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 Washington?

The most popular types of Backend Developer jobs in Washington are:

What cities in Washington are hiring for Mid Level Backend Developer jobs?

Cities in Washington with the most Mid Level Backend Developer job openings:

Mid Level Backend Developer jobs near you

Back-End Developer, Senior/Mid- JCC2-JCO

Semper Valens Solutions, Inc.

Fort George G Meade, MD • On-site

$134K - $174K/yr

Full-time

Re-posted 10 days ago

Job description

Back-End Developer, Senior/Mid

Full Time Fort Meade, MD

Top Secret/SCI Clearance


**This position is contingent upon contract award**

Job Description:

Job Responsibilities:

  • Provides subject matter proficiency for work described in the task.
  • Responsible for providing analytical skills to support process improvement, specialized studies, and definition of requirements.
  • Typical duties include analysis, planning, developing requirements documents, building functional models, developing procedures, developing functional architectures, and other related management and technical duties.
  • Requires expertise in specialty areas.
  • Shall perform engineering tasks for back-end design and development efforts including, but not limited to, developing back-end architectures to support current and new system capabilities and integrations, RESTful API development and modification, database management, and data model development and optimization.

Required Qualifications:

  • Bachelor's degree in related field required.
  • 10 years (Senior)/7 years (Mid) of experience in the functional area. A Master's degree may substitute for 2 years of experience.
  • 10 years (Senior)/7 years (Mid) of software development experience in object-oriented and scripted languages with the ability to apply several tool suites related to DevSecOps, microservices and containers.
  • 5 years (Senior)/3 years (Mid) of experience performing back-end web design and development.
  • Demonstrated experience in preparing, conducting, and documenting various systems tests and results to verify system operability and compliance with project standards and requirements.
  • Demonstrated experience in relational databases, RESTful API development and communication, and system integrations for Mid-level or 10 years for Senior-level.
  • 5 years of experience in Python and PostgreSQL for Senior-level.
  • 5 years (Senior)/3 years (Mid) of experience with bug tracking software (e.g., Jira).
  • 5 years (Senior)/3 years (Mid) of experience testing web-based applications.
  • 5 years of experience leading (Senior) or 3 years participating (Mid) in software development programs or projects.
  • Practical experience developing in a cloud environment.
  • 3 years of experience with the following: AWS Infrastructure, Kubernetes, and RedHat Linux.
  • 5 years of experience with at least five (5) of the following:
    Postgress, RDS, Exodus, Python, Luna, Java, Docker, OpenJDK, Ansible, Packer, Maven, Kubernetes, Red Hat
  • Experience with integrating data from unclassified to classified application deployments for Mid-level.

Desired Qualifications:

  • 5 years of experience with DoW software development.
  • Experience using Agile Test-Driven development.
  • Experience integrating into DoW DevSecOps environments.
  • 5 years of experience with CI/CD software development.
  • 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

About Semper Valens Solutions:

Semper Valens Solutions, Inc. (SVS) is a Service-Disabled Veteran Owned Small Business (SDVOSB) providing Cost Effective Software and Systems Engineering, Field Support, Training and Full Life cycle Support Management to the DOD and VA community.

At Semper Valens, our vision is to remain a creative, cutting edge and cost-effective solutions provider where our shared intellect, industry experience, and technology excellence, make a positive difference in our customer's success. Our solutions help bridge the gap between IT and business prioritizations to optimize budgets, risks and operational processes.

We search for outstanding technical professionals, hiring at all levels of the experience spectrum; intermediate, journeyman and senior. Consider us for your career plan.

Semper Valens Solutions is an Equal Opportunity Employer

Semper Valens Solutions proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital/parental status, pregnancy/childbirth, or related conditions, physical or mental disability, genetic information, status as a Disabled Veteran, Recently Separated Veteran, Active-Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with Semper Valens Solutions through its online applicant system, please contact Semper Valens Solutions Human Resources Department at (830) 899-6870.

Semper Valens Solutions is an affirmative action/equal opportunity employer - minorities, females, disabled, and protected veterans are urged to apply. Applicants have rights under Federal Employment Laws.

All Jobs at Semper Valens Solutions: https://sempervalens.com/careers

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