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Senior Backend Engineer Jobs in Washington (NOW HIRING)

System One

Senior Backend Developer

Merrifield, VA · On-site

$120K - $156K/yr

Senior Java Backend Developer Location: Vienna or Winchester, VA, San Diego, CA, or Pensacola, FL ... The ideal candidate is a strong Java engineer who brings technical leadership, cloud expertise, and ...

System One

Senior Backend Developer

Merrifield, VA · On-site

$120K - $156K/yr

Senior Java Backend Developer Location: Vienna or Winchester, VA, San Diego, CA, or Pensacola, FL ... The ideal candidate is a strong Java engineer who brings technical leadership, cloud expertise, and ...

BDR Solutions LLC

Sr Backend Developer

Herndon, VA · On-site +1

$123K - $160K/yr

BDR is seeking a Sr. Back-End Developer to join our growing team! This position will be performed virtually from the individual's home office working on EST time schedule. This position requires US ...

Maximus

Senior Back-End Developer

VA · On-site +1

$120K - $157K/yr

The Senior Back-End Developer provides subject matter proficiency for work described in the task. Responsible for providing analytical skills to support process improvement, specialized studies, and ...

BDR Solutions LLC

Sr Backend Developer

Herndon, VA · Remote

$123K - $160K/yr

BDR is seeking a Sr. Back-End Developer to join our growing team! This position will be performed virtually from the individual's home office working on EST time schedule. This position requires US ...

Maximus

Senior Back-End Developer

VA · On-site +1

$120K - $157K/yr

The Senior Back-End Developer provides subject matter proficiency for work described in the task. Responsible for providing analytical skills to support process improvement, specialized studies, and ...

Chenega MIOS

Senior Backend Developer

Vienna, VA · On-site

$120K - $157K/yr

Req ID: 40538 Summary Senior Backend Developer Vienna, VA Are you ready to enhance your skills and ... software engineer or equivalent practical experience * Hands-on experience developing backend ...

Chenega Corporation

Senior Backend Developer

Vienna, VA · On-site

$120K - $157K/yr

Summary Senior Backend Developer Vienna, VA Are you ready to enhance your skills and build your ... software engineer or equivalent practical experience * Hands-on experience developing backend ...

Chenega MIOS SBU

Senior Backend Developer

Vienna, VA · On-site

They are seeking a Senior Backend Developer to build software leveraging Esri's products and APIs ... engineer or equivalent practical experience • Hands-on experience developing backend services ...

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Showing results 21-40

All JobsBackend Engineer JobsSenior Backend Engineer JobsSenior Backend Engineer Jobs in Washington

Senior Backend Engineer information

See Washington salary details

$21.6K

$160.7K

$225K

How much do senior backend engineer jobs pay per year?

As of Aug 9, 2026, the average yearly pay for senior backend engineer in Washington is $160,663.00, according to ZipRecruiter salary data. Most workers in this role earn between $136,500.00 and $188,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior backend engineer, and why are they important?

To thrive as a Senior Backend Engineer, you need advanced proficiency in server-side programming languages (such as Java, Python, or Node.js), database management, and experience with scalable system architecture, typically supported by a relevant degree and several years of professional experience. Familiarity with frameworks, APIs, containerization tools (like Docker and Kubernetes), and cloud platforms (such as AWS or Azure) is essential, along with knowledge of version control systems like Git. Strong problem-solving abilities, effective communication, and mentorship skills help you collaborate across teams and guide junior developers. These skills ensure the delivery of robust, efficient, and maintainable backend systems that support business objectives and seamless user experiences.

What are some common challenges senior backend engineers face when scaling backend systems, and how are they typically addressed?

Senior Backend Engineers often encounter challenges related to system scalability, such as database bottlenecks, latency issues, and maintaining system reliability under increased load. Addressing these challenges typically involves optimizing database queries, implementing caching strategies, and designing microservices architectures to distribute workloads efficiently. Collaboration with DevOps and frontend teams is also crucial to ensure seamless integration and monitoring. Proactively identifying potential scalability issues and participating in code reviews are key responsibilities in this role.

What does a senior backend engineer do?

A senior backend engineer designs, develops, and maintains server-side applications and systems that support web and mobile platforms. They often work with programming languages like Java, Python, or Node.js, and use databases, APIs, and cloud services to ensure scalable and efficient backend operations. Additionally, they review code, mentor junior developers, and ensure system security and performance standards are met.

What is a senior backend engineer?

Senior Backend Engineers are experienced software professionals responsible for designing, developing, and maintaining the server-side components of web applications or systems. They work with databases, APIs, and application logic to ensure robust, scalable, and efficient backend operations. Their role often involves collaborating with frontend engineers, managing system architecture, reviewing code, and mentoring junior developers. Senior Backend Engineers also play a key role in optimizing performance, ensuring security, and integrating new technologies into existing systems.
What are the most commonly searched types of Backend Engineer jobs in Washington? The most popular types of Backend Engineer jobs in Washington are:
What cities in Washington are hiring for Senior Backend Engineer jobs? Cities in Washington with the most Senior Backend Engineer job openings:
Senior Backend Engineer jobs near you
Infographic showing various Senior Backend Engineer job openings in Washington as of August 2026, with employment types broken down into 92% Full Time, 2% Part Time, and 6% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $160,663 per year, or $77.2 per hour.

Senior Backend Developer

System One

Merrifield, VA • On-site

$120K - $156K/yr

Contractor

Medical, Dental, Vision, Life, Retirement

Posted 10 days ago

Job description

Job Title: Senior Java Backend Developer Location: Vienna or Winchester, VA, San Diego, CA, or Pensacola, FL Work Schedule: hybrid, onsite 3 days a week Pay Rate: Open to Both C2C and W2 options Position Type: Multiyear Contract Candidates must have a minimum of 10 years of professional experience, ideally closer to 15 years with extensive Java backend development experience, Java 17+, Spring framework/Spring Boot, and Azure. This role is for a Senior Backend Developer responsible for building, modernizing, and supporting the backend services that power mobile and online banking applications. The position focuses on developing scalable, secure, cloud-native solutions using Java and Azure technologies while collaborating with product, architecture, QA, frontend, and platform teams. The developer will contribute to application modernization efforts, mentor junior engineers, support production systems, build CI/CD pipelines, and leverage AI-assisted development tools to improve engineering productivity and code quality. Overview The Senior Backend Developer is responsible for the design, development, modernization, and support of backend services that power our mobile banking and online banking channels. This role partners closely with product teams, architects, analysts, QA engineers, frontend developers, and platform teams to deliver scalable, secure, and resilient solutions. The ideal candidate is a strong Java engineer who brings technical leadership, cloud expertise, and a passion for continuous improvement. This individual will help drive application modernization, mentor team members, and leverage emerging technologies, including AI-assisted development tools, to improve engineering efficiency and delivery quality. Responsibilities

  • Design, develop, enhance, and maintain backend services and APIs.
  • Build scalable, secure, and resilient cloud-native applications.
  • Participate in architecture and design discussions and contribute to technical solutioning.
  • Collaborate with cross-functional teams to define, design, and deliver new features and capabilities.
  • Identify performance bottlenecks, troubleshoot issues, and implement effective solutions.
  • Conduct code reviews and champion engineering best practices, quality standards, and secure coding principles.
  • Support application modernization and technical debt reduction initiatives.
  • Build and maintain CI/CD pipelines and deployment automation using Azure DevOps.
  • Participate in production support, incident response, root cause analysis, and operational readiness activities.
  • Mentor and provide technical guidance to junior engineers.
  • Evaluate and leverage AI-assisted development tools to improve productivity, code quality, testing, and delivery speed.
  • Help maintain code quality, organization, documentation, and automation standards.
Required Skills & Experience
  • Strong experience developing applications using Java 17 or higher.
  • Experience with Spring Framework and Spring Boot.
  • Experience designing and developing RESTful APIs and microservices architectures.
  • Strong understanding of web applications, web services, and distributed systems.
  • Experience with cloud platforms, preferably Microsoft Azure.
  • Experience with Azure services such as App Services, Azure SQL, Service Bus, API Management, Application Insights, or similar cloud-native services.
  • Experience with Git-based source control, Azure DevOps Repos, pull requests, and branching strategies.
  • Experience building and maintaining CI/CD pipelines using Azure DevOps.
  • Strong understanding of databases, SQL, and application data integration patterns.
  • Experience troubleshooting complex, interconnected systems and applications.
  • Understanding of application scalability, resilience, observability, and performance optimization.
  • Experience working in Agile/Scrum environments.
  • Familiarity with AI-powered development tools (e.g., GitHub Copilot, AI-assisted code generation, testing, analysis, and debugging) to improve developer productivity and code quality.
  • Strong analytical, problem-solving, communication, and collaboration skills.
  • Demonstrated ability and willingness to learn new technologies and adapt to changing business needs.
Preferred Qualifications
  • Experience with Docker and Kubernetes (AKS preferred).
  • Experience with event-driven architectures and messaging platforms.
  • Experience working in the banking or financial services industry.
  • Knowledge of secure software development practices and regulatory considerations in financial systems.
  • Awareness of sustainable coding practices and energy-efficient system design.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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Ref: #851-Rockville-S1