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Sr Application Engineer Jobs in Washington (NOW HIRING)

Cloud BC Labs

Sr Application Developer

Reston, VA · On-site +1

$99K - $137K/yr

Position : Sr Application Developer Location : Remote Term : W2 Role Duration : Long term Job Summary: We are seeking a Senior Application Programmer/Developer to provide advanced front-end ...

KurzSolutions

Senior Application Developer

Washington, DC · On-site

$108K - $148K/yr

They are seeking a Senior Application Developer who will translate requirements into detailed design specifications, test and debug software, and provide technical direction to ensure products meet ...

Markon

Senior Application Developer

Annapolis Junction, MD · On-site

$120K - $200K/yr

The Senior Application Developer will work closely with data scientists and end users to develop innovative analytic tools to further discovery and tradecraft around critical global challenges, then ...

Markon

Senior Application Developer

Annapolis Junction, MD · On-site

$120K - $200K/yr

The Senior Application Developer will work closely with data scientists and end users to develop innovative analytic tools to further discovery and tradecraft around critical global challenges, then ...

Markon

Senior Application Developer

Annapolis Junction, MD · On-site

$120K - $200K/yr

The Senior Application Developer will work closely with data scientists and end users to develop innovative analytic tools to further discovery and tradecraft around critical global challenges, then ...

BLN24

Senior Application Developer

Mclean, VA · On-site

$97K - $133K/yr

Senior Application Developer (NOAA/AWIPS) Company: BLN24 About Us:We find strength in teamwork-a better you is a better us BLN24 is an award-winning Management Consulting Firm thatsupports the U.S.

BLN24

Senior Application Developer

Mclean, VA · On-site

$97K - $133K/yr

Job Title:  Senior Application Developer (NOAA/AWIPS) Company: BLN24 About Us: We find strength in teamwork-a better you is a better us BLN24 is an award-winning Management Consulting Firm ...

All Native Group

Senior Application Developer

Arlington, VA · On-site

$109K - $150K/yr

Working within the SearchPlus and application development team, the Senior Application Developer designs, builds, and maintains enterprise web applications and search capabilities that serve a user ...

Alpha Omega

Senior Application Developer

Washington, DC · On-site

$125 - $150/hr

Senior Application Developer Clearance Required: Public Trust - Federal Client requires US Citizenship Work Location: Hybrid, Washington, DC Alpha Omega is currently seeking a Senior Application ...

Worky

Sr. Application Developer

Washington, DC · On-site

$150 - $200/hr

Overview BigBear.ai is seeking a Senior Application Developer to support the Defense Intelligence Agency (DIA). This position will be based out of Washington, D.C. and will offer remote flexibility.

All Native Group

Senior Application Developer

Arlington, VA · On-site

$109K - $150K/yr

Working within the SearchPlus and application development team, the Senior Application Developer designs, builds, and maintains enterprise web applications and search capabilities that serve a user ...

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Showing results 21-40

All JobsSr Application Engineer JobsSr Application Engineer Jobs in Washington

Sr Application Engineer information

See Washington salary details

$78.7K

$146.1K

$207.3K

How much do sr application engineer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for sr application engineer in Washington is $146,103.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,300.00 and $163,700.00 per year, depending on experience, location, and employer.

What does a Sr Application Engineer do?

A Sr Application Engineer is responsible for designing, developing, and maintaining software applications to meet specific business or technical requirements. They often work closely with clients, project managers, and other engineers to translate user needs into functional solutions. Typical duties include coding, troubleshooting, optimizing performance, and providing technical support throughout the software development lifecycle. Senior Application Engineers also mentor junior team members and may contribute to architectural decisions. Their role is critical in ensuring that applications are robust, scalable, and aligned with organizational goals.

What are the key skills and qualifications needed to thrive as a Sr Application Engineer?

To thrive as a Sr Application Engineer, you need advanced expertise in software development, system architecture, and a relevant degree such as a BS or MS in Computer Science or Engineering. Familiarity with programming languages (e.g., Java, Python, C#), cloud platforms, and tools like Git, Docker, and CI/CD pipelines is typically required, along with certifications such as AWS Certified Solutions Architect or similar. Strong problem-solving, communication, and leadership skills set top performers apart by enabling effective project delivery and cross-team collaboration. These capabilities are crucial for designing robust solutions, maintaining system reliability, and driving innovation in complex technical environments.

How does a Sr Application Engineer typically collaborate with cross-functional teams during the software development lifecycle?

As a Sr Application Engineer, you will frequently work with product managers, UX/UI designers, QA specialists, and other engineers to deliver high-quality applications. Collaboration often involves participating in requirements gathering sessions, code reviews, sprint planning, and troubleshooting meetings. Effective communication and a proactive approach to problem-solving are essential, as you’ll need to bridge technical and non-technical perspectives to ensure project goals are met. This role also offers opportunities to mentor junior developers and influence architectural decisions, making teamwork a central part of your daily responsibilities.

What is the difference between Sr Application Engineer vs Application Engineer?

AspectSr Application EngineerApplication Engineer
Required CredentialsBachelor's degree in engineering or related field; experience in software/applications; sometimes certifications in specific technologiesBachelor's degree in engineering, computer science, or related field; similar certifications optional
Work EnvironmentDesign, develop, and troubleshoot applications; collaborate with cross-functional teams; often involved in project leadershipImplement and support applications; work closely with clients and internal teams; focus on deployment and maintenance
Employer & Industry UsageUsed across tech, manufacturing, and software companies; common in industries requiring application developmentCommon in IT, software, and engineering firms; roles focused on application support and deployment

The main difference between a Sr Application Engineer and an Application Engineer lies in experience level and responsibilities. The senior role typically involves more complex project leadership, troubleshooting, and strategic planning, while the Application Engineer focuses on implementation and support. Both roles require similar educational backgrounds and certifications, but the senior position demands more experience and technical expertise.

What cities in Washington are hiring for Sr Application Engineer jobs?

Cities in Washington with the most Sr Application Engineer job openings:

Sr Application Engineer jobs near you
Infographic showing various Sr Application Engineer job openings in Washington as of August 2026, with employment types broken down into 78% Full Time, 17% Part Time, and 5% Contract. Highlights an 89% Physical, 2% Hybrid, and 9% Remote job distribution, with an average salary of $146,103 per year, or $70.2 per hour.

Senior Application Developer/Engineer/Programmer

Diverse Agile Solutions

Washington, DC • On-site, Remote

$160K - $170K/yr

Full-time

Posted 10 days ago

Key responsibilities

  • Design, develop, test, and maintain cloud-native applications and microservices using Python and AWS.

  • Implement AWS infrastructure, including serverless solutions, containerized applications, and RESTful APIs, using AWS services and infrastructure-as-code tools.

  • Participate in code reviews, testing, troubleshooting, and technical documentation to ensure application quality, performance, and security.

Job description

Senior Application Developer / Engineer / ProgrammerTO-708 | AWS | Python | Cloud-Native Development

Diverse Agile Solutions, LLC (DAS) is seeking an experienced Senior Application Developer / Engineer / Programmer to support a federal technology initiative focused on developing modern, cloud-native applications and services.

This is a hands-on senior engineering position for someone who enjoys solving complex technical problems, building scalable AWS solutions, developing Python-based applications, and working in an Agile environment.

U.S. Citizenship is required.

Position Details

Position: Senior Application Developer / Engineer / Programmer
Task Order: TO-708
Employment Type: Contract
Performance Period: Through the end of 2026, with possibility of extension
Work Arrangement: [Insert Remote/Hybrid/On-Site]
Location: [Insert Location]
Citizenship: U.S. Citizenship Required

Position Overview

The Senior Application Developer / Engineer / Programmer will design, develop, test, and maintain cloud-native applications and microservices using Python and Amazon Web Services (AWS).

The ideal candidate has strong experience developing production-grade Python applications, building serverless and containerized solutions, implementing infrastructure as code, and designing RESTful APIs.

You will work closely with technical teams and business stakeholders to translate requirements into reliable, scalable, and maintainable technology solutions.

What You'll DoApplication Development & Cloud Infrastructure
  • Develop and maintain production-grade Python-based microservices.
  • Design and implement AWS infrastructure using AWS Cloud Development Kit (CDK).
  • Develop and maintain AWS Lambda applications and serverless solutions.
  • Model complex business processes and workflows using AWS Step Functions.
  • Build containerized applications and services using Docker.
  • Design, develop, and maintain RESTful APIs.
  • Implement API versioning, error handling, security, and performance best practices.
  • Work with AWS services including DynamoDB, S3, API Gateway, CloudWatch, and CloudTrail.
  • Develop infrastructure-as-code solutions supporting multiple environments.
  • Implement comprehensive application logging, monitoring, and audit capabilities.
Quality & Engineering Excellence
  • Conduct code reviews focused on maintainability, scalability, performance, security, and coding standards.
  • Develop comprehensive unit and integration tests.
  • Identify, troubleshoot, and remediate software defects and technical issues.
  • Improve application performance, reliability, and maintainability.
  • Participate in architecture and technical design decisions.
  • Maintain accurate technical documentation and system specifications.
  • Apply software development best practices throughout the SDLC.
Agile Collaboration
  • Work as part of an Agile development team.
  • Collaborate with product owners, business analysts, architects, engineers, and other stakeholders.
  • Translate business and functional requirements into effective technical solutions.
  • Participate in sprint planning, backlog refinement, reviews, retrospectives, and other Agile ceremonies.
  • Communicate technical concepts effectively to both technical and non-technical stakeholders.
AI-Assisted Development

DAS values the responsible use of modern AI-assisted development tools. Experience with tools such as Claude Code or similar AI coding assistants is a plus.

Candidates with AI-assisted development experience may use these tools to:

  • Assist with code reviews and optimization.
  • Generate and improve technical documentation.
  • Debug and troubleshoot application issues.
  • Develop and expand automated test cases.
  • Accelerate development while maintaining engineering quality.

Candidates should be able to critically evaluate AI-generated code, identify potential issues, and make appropriate technical modifications rather than relying on AI-generated output without review.

Required QualificationsEducation & Experience
  • Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent professional experience.
  • 7+ years of professional software development experience.
  • Demonstrated experience working throughout the Software Development Life Cycle (SDLC).
  • Experience working in Agile software development environments.
Required Technical Skills

Python

  • Strong production experience developing applications using Python.
  • Experience with modern Python frameworks and testing libraries.
  • Ability to write clean, maintainable, scalable, and well-tested code.

AWS / Cloud Development

  • Hands-on experience with AWS application development.
  • Experience developing AWS Lambda applications.
  • Experience designing workflows with AWS Step Functions.
  • Experience with AWS CDK for infrastructure as code.
  • Experience deploying applications across multiple environments.

CI/CD

  • Hands-on experience creating and managing CI/CD pipelines.
  • Experience automating application builds, testing, and deployments.

API Development

  • Strong understanding of RESTful API design.
  • Experience with API versioning, error handling, integration, and performance considerations.

Version Control

  • Strong experience with Git.
  • Understanding of branching strategies and collaborative Git workflows.
  • Experience conducting and participating in merge/pull request reviews.
Technical EnvironmentPrimary Technologies

Candidates should have significant hands-on experience with:

  • Python 3.9+
  • AWS Lambda
  • AWS Step Functions
  • AWS CDK
  • DynamoDB
  • Amazon S3
  • Amazon API Gateway
  • Amazon CloudWatch
  • AWS CloudTrail
  • Docker
  • Git / GitLab
  • CI/CD pipelines
Additional Technologies

Experience with the following is highly desirable:

  • Terraform
  • Angular
  • React
  • TypeScript
  • Amazon SNS
  • Amazon SQS
  • Amazon Athena
  • AWS Glue
  • AWS Load Balancers
What We're Looking For

The strongest candidates will be:

  • Hands-on engineers who enjoy building and troubleshooting software.
  • Strong problem solvers who can work through complex technical challenges.
  • Comfortable working across application development and cloud infrastructure.
  • Experienced working in highly collaborative Agile teams.
  • Detail-oriented with a strong focus on code quality and maintainability.
  • Comfortable reviewing and improving other developers' code.
  • Able to communicate effectively with technical and business stakeholders.
  • Curious about emerging technologies, including AI-assisted software development.
  • Able to balance speed of delivery with security, reliability, scalability, and maintainability.
Why Join Diverse Agile Solutions?

At Diverse Agile Solutions, we combine experienced technology professionals with Agile delivery practices to help organizations modernize their technology environments.

Our teams work across Cloud, DevOps, Cybersecurity, Software Development, Artificial Intelligence, Networking, and IT modernization.

We provide an environment where experienced professionals can work on meaningful technology initiatives while continuing to expand their technical expertise.

Equal Opportunity Employer

Diverse Agile Solutions, LLC is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all qualified applicants and maintaining a workplace built on professionalism, respect, inclusion, and integrity.

U.S. Citizenship is required for this position.

Apply Today

If you are a senior software engineer with strong Python and AWS experience and enjoy building modern cloud-native applications, we would like to hear from you.

Apply through BreezyHR to be considered for TO-708.

Employment Type: FULL_TIME

Apply