backend software engineer Jobs in Washington

backend software engineer

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sr. backend/middleware engineer Jobs in Washington

sr. backend/middleware engineer

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sr. full stack developer

sr backend middleware engineer

Knowledge Management, Inc.

<div>Knowledge Management, Inc. (KMI) has the leadership and experience to deliver innovative technology, logistics and management solutions to meet real mission requirements. KMI is a Minority Business Enterprise (MBE) and Small Disadvantage Business (SDB) that specializes in Logistics, Warehouse Services, Distance Learning/Training, Enterprise Solutions, Financial Management Support, Program Management, Intelligence AnalysisThreat Assessment, and Data Analytics/Operations Research. Since 1998, our solutions and services have helped our clients improve performance, drive cost and operational effectives, and map technology needs for tomorrow's requirements.
Title: Sr. Backend/Middleware Engineer
Location: Remote with ability to travel to support case work as required. Some travel requirements may be outside of the USA.
Position: 1
Duration: Multi-year program
Start date: ASAP
Security Clearance: Active US Treasury Public Trust preferred. Anyone with an active DOD clearance, would be processed for a DHS Public Trust.
Salary: Please provide your salary requirement 
 
Position Overview: Knowledge Management, Inc. is seeking a Senior Backend/Middleware Engineer to design, develop, and maintain robust, scalable API and middleware solutions for our secure, mission-critical applications. This role is critical to client's product roadmap and will focus on building secure, high-performance middleware services using Java and Spring Boot, with a strong emphasis on Zero Trust principles.
Key Responsibilities:<ul><li>
Design, develop, and deploy comprehensive RESTful APIs using Java and the Spring Boot framework.</li><li>
Implement and maintain security for API endpoints using OAuth 2.0 and OpenID Connect (OIDC) protocols.</li><li>
Enforce authorization policies based on Role-Based Access Control (RBAC) and Attribute-Based Access Control (ABAC) principles.</li><li>
Contribute to the development of secure edge computing and cloud-native solutions that meet stringent compliance and security criteria.</li><li>
Write clean, maintainable, and testable code with a strong emphasis on performance and reliability.</li><li>
Collaborate with cross-functional teams to deliver compliant mobile solutions designed to streamline workflows and enhance operational efficiency.</li><li>
Participate in code reviews to ensure high-quality standards are met.</li></ul> 
Required Qualifications:<ul><li>
Proven experience as a Backend or Middleware Engineer in a senior-level role.</li><li>
Expert-level proficiency in Java and the Spring Boot ecosystem.</li><li>
Hands-on experience implementing and securing APIs with OAuth 2.0 and OIDC.</li><li>
Strong understanding and practical application of RBAC and ABAC for authorization. Proficiency with version control systems, particularly Git.</li></ul>
Desired Qualifications:<ul><li>
Experience with Bedrock for managing backend data warehousing and storage needs.</li><li>
Familiarity with Nutanix infrastructure and platform solutions.</li><li>
Hands-on experience building and managing CI/CD pipelines in either GitHub Actions or GitLab CI.</li><li>
Proficiency in containerization with Docker and orchestration with Kubernetes.</li><li>
An existing US Treasury Public Trust or equivalent Federal security clearance.
</li></ul>Benefits: All full-time employees are eligible to participate in our benefits programs:<ul><li>
Health, dental, and vision insurance</li><li>
401(k) retirement plan</li><li>
Paid time off (PTO) and holidays</li><li>
Group Term Life and Accidental Death and Dismemberment Insurance</li><li>
Voluntary Term Life Insurance</li><li>
Short and Long-term disability insurance
</li></ul>Equal Employment Opportunity Statement. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
E-Verify Statement. Knowledge Management, Inc. participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. If E-Verify cannot confirm that you are authorized to work, KMI is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment. Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.
Pay Transparency Non-Discrimination Provision. Knowledge Management, Inc. will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. 41 CFR 60-1.35(c)
Disability Statement. If you have a disability and need reasonable accommodation or assistance at any point in the application or onboarding process, please email us at marie@knowledgemanagement.com.</div>

Sr. Backend/Middleware Engineer

Tetrad Digital Integrity LLC

<div>Tetrad Digital Integrity (TDI) is a leading-edge cybersecurity firm with a mission to safeguard and protect our customers from increasing threats and vulnerabilities in this digital age. 
 
We are looking for a Senior Systems Architect to support a non-profit organization based in Boston, MA who mission is to honor our Veterans by providing healthcare and housing services to them and their families. The organization operates a complex payer technology ecosystem supporting government-aligned and commercial health programs. The Sr Systems Architect will provide leadership, ensure secure and compliant systems integrations and support modernization initiatives involving systems that process, store or transmit Controlled Unclassified Information (CUI). 
 
The position will offer a hybrid commute with the ability to support a Washington, DC office location attending in person meetings as needed. 
 
RESPONSIBILITIES:<ul><li>
Lead architecture design for complex, multi-system integrations across enterprise payer platforms</li><li>
Participate in governance forums: Architectural Review Board (ARB), security and compliance reviews and Change Advisory Board (CAB)</li><li>
Define and document current-state, transitional and target start architecture</li><li>
Architectural support of payer systems such as: claims processing, enrollment and eligibility platforms, Pharmacy Benefit Manager (PBM) integrations, CRM and call center platforms and care/case management systems</li><li>
Design secure integrations patterns (API's, middleware, EDI batch and event driven)</li><li>
Ensure alignment with enterprise architecture standards, interoperability requirements, scalability and resiliency objectives</li><li>
Provide Executive and governance briefing materials</li></ul>
QUALIFICATIONS:<ul><li>
Bachelors Degree with 12+ years of enterprise IT experience</li><li>
Demonstrated experience designed complex, multi-systems integrations</li><li>
Experience in healthcare or health plan/payer environments</li><li>
Knowledge of CMMC level 2/NIST 800-171 regulations</li><li>
Experience supporting systems handling CUI</li><li>
Strong understanding of API's, EDI, middleware, batch and data exchange patterns</li></ul>
PREFERRED QUALIFCATIONS:<ul><li>
DoD, TRICARE or government aligned healthcare experience</li><li>
CMMC readiness or assessment support</li><li>
Healthcare EDI experience (834,837,835,270/271)</li></ul>
TDI does business with the federal government, which restricts employment to individuals who are either US citizens or lawful permanent residents of the United States.
&ldquo;TDI is an Equal Opportunity Employer. Employment decisions are made based on individual qualifications, merit, and business needs. We do not discriminate in employment opportunities or practices based on race, color, religion, sex, or national origin, in accordance with applicable federal laws.&rdquo;
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Senior Systems Architect

Q2 Impact

<div>Backend Software Engineer
About Q2IMPACT: Q2IMPACT is a data-first organization known for delivering innovative, customized solutions in monitoring, evaluation, learning, digital transformation, and performance management for government, security, and development partners. Drawing on deep expertise in advanced analytics, digital platforms, and AI, we help clients solve their most complex data, knowledge management, and operational challenges. Our collaborative culture values curiosity, partnership, and technical excellence.
Position Summary: The Backend Software Engineer will play a critical role in the development and sustainment of Socium, a mission-critical DoD enterprise system supporting global Security Cooperation activities. This position focuses on designing, building, and maintaining backend services and integrations that ensure secure, scalable, and high-performing functionality across NIPRNet and SIPRNet environments.
<ul><li>Backend Development &amp; Integration: Design and implement server-side logic, APIs, and data services for Socium. Develop secure and efficient integrations with DoD systems and external mission partner platforms. Optimize backend performance for large-scale, cross-domain operations.</li>
<li>System Architecture &amp; Engineering: Contribute to enterprise-level architecture decisions and ensure alignment with DoD technical guardrails. Support development of workflows, orchestrations, and data management processes. Implement responsive design principles for backend components supporting UI/UX requirements. Develop for automated testing and integrated code security.</li>
<li>Security &amp; Compliance: Apply cybersecurity best practices, including STIG compliance and RMF requirements. Support ATO processes and maintain secure coding standards. Collaborate with cybersecurity teams to remediate vulnerabilities and maintain compliance.</li>
<li>Agile Development &amp; DevSecOps: Participate in Agile ceremonies (sprint planning, backlog refinement, retrospectives). Work within CI/CD pipelines to deliver incremental releases. Provide technical input for user stories and acceptance criteria.</li>
</ul>
Qualifications:
<ul><li>Five (5) or more years of experience with large technology systems.</li>
<li>Five (5) or more years of experience supporting technology systems for DoD.</li>
<li>Five (5) or more years of experience identifying opportunities for improving user experience and defining the design roadmap.</li>
<li>Bachelor&rsquo;s degree in Computer Science, Information Systems Technology, or Information Technology.</li>
<li>Active Secret clearance</li>
</ul>
Location: Arington, VA (remote as permitted)
Travel Requirements: Occasional domestic and international travel may be required for short-term technical assistance assignments.
Benefits of Joining Q2IMPACT:
<ul><li>A dynamic group of professionals with diverse backgrounds and expertise, committed to delivering high-quality results and making a meaningful impact in communities around the world.</li>
<li>An opportunity to lead and shape a growing firm that has a solid reputation in the industry and is poised for further expansion.</li>
<li>A chance to work across development, diplomacy, and defense sectors, with a broad portfolio of projects and clients.</li>
<li>A supportive and inclusive culture that values innovation, excellence, and collaboration.</li>
<li>Competitive salary and benefits package, including health, dental, and vision insurance, and paid time off.</li>
</ul>
Join our team at Q2IMPACT, where your talents, expertise, and passion can make a difference. Apply today and become part of a dynamic and growing organization.
The physical demands and work environment that have been described is representative of those an employee encounters while performing the essential functions of these positions. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions in accordance with the Americans with Disabilities Act.
These position descriptions provide an overview of the major functions and requirements of these roles. This document is not intended to be an exhaustive list encompassing every duty and requirement of the positions; the Employee&rsquo;s Manager may assign other duties as related or as otherwise deemed appropriate and necessary within the general scope, without the need for additional compensation.</div>

Backend Software Engineer

Conflicts Analyst (Hybrid)

<div>Knowledge Management, Inc. (KMI) has the leadership and experience to deliver innovative technology, logistics and management solutions to meet real mission requirements. KMI is a Minority Business Enterprise (MBE) and Small Disadvantage Business (SDB) that specializes in Logistics, Warehouse Services, Distance Learning/Training, Enterprise Solutions, Financial Management Support, Program Management, Intelligence AnalysisThreat Assessment, and Data Analytics/Operations Research. Since 1998, our solutions and services have helped our clients improve performance, drive cost and operational effectives, and map technology needs for tomorrow's requirements.
Title: Sr. Full Stack Developer
Location: Remote with ability to travel to support case work as required. Some travel requirements may be outside of the USA.
Position: 1
Duration: Multi-year program
Start date: ASAP
Security Clearance: Active US Treasury Public Trust preferred. Anyone with an active DOD clearance, would be processed for a DHS Public Trust.
Salary: Please provide your salary requirement 
 
Knowledge Management, Inc. is seeking a Senior Full Stack Developer to lead the design, development, and maintenance of our secure, mission-critical web applications. This role requires a strong background in both backend and frontend technologies, with a focus on Java, Spring Boot, and integration with AWS Bedrock. The ideal candidate will have a deep understanding of relational databases and experience in delivering high-performance, scalable solutions. 
Key Responsibilities:<ul><li>
Lead the design and development of full-stack applications, ensuring seamless integration between frontend and backend components.</li><li>
Develop and maintain RESTful APIs using Java and the Spring Boot framework, with a focus on security and performance.</li><li>
Integrate AWS Bedrock to leverage foundation models and enhance application capabilities.</li><li>
Design and implement relational database schemas and queries to support application functionality and performance.</li><li>
Collaborate with cross-functional teams to define, design, and ship new features, ensuring alignment with business objectives.</li><li>
Write clean, maintainable, and testable code, adhering to best practices and coding standards.</li><li>
Participate in code reviews and provide mentorship to junior developers, fostering a culture of continuous improvement.</li></ul>
Required Qualifications:<ul><li>
Proven experience as a Full Stack Developer in a senior-level role, with a strong portfolio of delivered projects.</li><li>
Expert-level proficiency in Java and the Spring Boot ecosystem.</li><li>
Hands-on experience integrating and deploying applications with AWS Bedrock.</li><li>
Deep understanding of relational databases (e.g., MySQL, PostgreSQL) and SQL.</li><li>
Proficiency with modern frontend frameworks (e.g., React, Angular, Vue.js).</li><li>
Experience with version control systems, particularly Git.</li><li>
Strong problem-solving skills and a focus on delivering high-quality, secure solutions.</li></ul>
Desired Qualifications:<ul><li>
Familiarity with Nutanix infrastructure and platform solutions.</li><li>
Experience with CI/CD pipelines in GitHub Actions or GitLab CI.</li><li>
Proficiency in containerization with Docker and orchestration with Kubernetes.</li><li>
Knowledge of cloud platforms (e.g., AWS, Azure, GCP) and their services.
</li></ul>Benefits: All full-time employees are eligible to participate in our benefits programs:<ul><li>
Health, dental, and vision insurance</li><li>
401(k) retirement plan</li><li>
Paid time off (PTO) and holidays</li><li>
Group Term Life and Accidental Death and Dismemberment Insurance</li><li>
Voluntary Term Life Insurance</li><li>
Short and Long-term disability insurance
</li></ul>Equal Employment Opportunity Statement. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
E-Verify Statement. Knowledge Management, Inc. participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. If E-Verify cannot confirm that you are authorized to work, KMI is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment. Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.
Pay Transparency Non-Discrimination Provision. Knowledge Management, Inc. will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. 41 CFR 60-1.35(c)
Disability Statement. If you have a disability and need reasonable accommodation or assistance at any point in the application or onboarding process, please email us at marie@knowledgemanagement.com.</div>

Sr. Full Stack Developer

<div>Knowledge Management, Inc. (KMI) has the leadership and experience to deliver innovative technology, logistics and management solutions to meet real mission requirements. KMI is a Minority Business Enterprise (MBE) and Small Disadvantage Business (SDB) that specializes in Logistics, Warehouse Services, Distance Learning/Training, Enterprise Solutions, Financial Management Support, Program Management, Intelligence AnalysisThreat Assessment, and Data Analytics/Operations Research. Since 1998, our solutions and services have helped our clients improve performance, drive cost and operational effectives, and map technology needs for tomorrow's requirements.
Title: Sr. DevOps Engineer
Location: Remote with ability to travel to support case work as required. Some travel requirements may be outside of the USA.
Position: 1
Duration: Multi-year program
Start date: ASAP
Security Clearance: Active US Treasury Public Trust preferred. Anyone with an active DOD clearance, would be processed for a DHS Public Trust.
Salary: Please provide your salary requirement
Knowledge Management, Inc. is seeking a Senior DevOps Engineer to architect, build, and maintain the infrastructure and automation that powers our client's secure, mission-critical applications. This role will heavily focus on implementing best practice CI/CD principles within a GitHub Enterprise environment and eventually migrating the migration of their systems to a Kubernetes cluster-based architecture.
Key Responsibilities:<ul><li>
Architect, implement, and manage robust CI/CD pipelines using GitHub Enterprise, ensuring best practices for build, test, and deployment automation.</li><li>
Collaborate closely with development teams to optimize CI/CD pipelines, automate infrastructure provisioning, and enhance platform observability.</li><li>
Coordinate with the production support team to deploy and maintain enterprise applications on cloud-agnostic microservices architecture.</li><li>
Implement infrastructure-as-code (IaC) using tools like Terraform to manage cloud resources and ensure consistency and security.</li><li>
Establish and maintain monitoring, observability, and alerting using tools like Grafana and Prometheus to ensure high availability and performance.</li><li>
Automate infrastructure deployments and manage version control and configuration management tools.</li><li>
Develop and implement Git branching strategies that gatekeep production deployments and ensure code quality.</li><li>
Lead the strategy and execution for migrating applications and services to Kubernetes, enhancing scalability and reliability.</li></ul>
Required Qualifications:<ul><li>
Proven experience as a DevOps Engineer in a senior-level role.</li><li>
Expert-level proficiency with GitHub Enterprise and building/managing CI/CD pipelines using GitHub Actions.</li><li>
Strong experience with containerization technologies, specifically Docker.</li><li>
Proficiency with infrastructure-as-code tools (e.g., Terraform, CloudFormation).</li><li>
Solid understanding of cloud infrastructure and platforms (e.g., AWS, Azure, GCP).</li><li>
Experience with monitoring, observability, and alerting tools such as Grafana, Prometheus, and Datadog.</li></ul>
Desired Qualifications:<ul><li>
Deep, hands-on experience with Kubernetes, including cluster administration, networking, and storage.</li><li>
An existing US Treasury Public Trust or equivalent Federal security clearance.
</li></ul>Benefits: All full-time employees are eligible to participate in our benefits programs:<ul><li>
Health, dental, and vision insurance</li><li>
401(k) retirement plan</li><li>
Paid time off (PTO) and holidays</li><li>
Group Term Life and Accidental Death and Dismemberment Insurance</li><li>
Voluntary Term Life Insurance</li><li>
Short and Long-term disability insurance
</li></ul>Equal Employment Opportunity Statement. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
E-Verify Statement. Knowledge Management, Inc. participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. If E-Verify cannot confirm that you are authorized to work, KMI is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment. Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.
Pay Transparency Non-Discrimination Provision. Knowledge Management, Inc. will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. 41 CFR 60-1.35(c)
Disability Statement. If you have a disability and need reasonable accommodation or assistance at any point in the application or onboarding process, please email us at marie@knowledgemanagement.com.</div>

Sr. DevOps Engineer

CVS Health

<div>At CVS Health, we&rsquo;re building a world of health around every consumer and surrounding ourselves with dedicated colleagues who are passionate about transforming health care.
As the nation&rsquo;s leading health solutions company, we reach millions of Americans through our local presence, digital channels and more than 300,000 purpose-driven colleagues &ndash; caring for people where, when and how they choose in a way that is uniquely more connected, more convenient and more compassionate. And we do it all with heart, each and every day.
Position Summary 
We're seeking a Data Engineer to design and implement data pipelines that power analytical capabilities. This hands-on role requires an understanding of data engineering best practices and the ability to translate business requirements into technical solutions.
You will be part of a dedicated team creating datasets for analytic and data science workloads. You will work with other Data Engineers and Sr. Data Engineers on designing, implementing, and testing data pipelines. Your key responsibilities are:<ul><li>
Data Pipeline Development: Design and build ETL/ELT data pipelines to ingest, process, and transform datasets from multiple sources.</li><li>
Performance Optimization: Implement best practices for performance tuning, partitioning, and clustering to optimize data queries.</li><li>
Data Quality &amp; Governance: follow data quality standards, data governance frameworks, and security policies for data storage and access.</li><li>
Data Modeling &amp; Architecture: Develop and optimize data models and schemas to support analytics, reporting, and machine learning requirements.</li><li>
Data Integration &amp; Transformation: Collaborate with data scientists and analysts to design data solutions that integrate with BI tools and machine learning models</li><li>
Documentation &amp; Knowledge Sharing: Create comprehensive documentation for data pipelines, workflows, and processes.</li></ul>
Required Qualifications<ul><li>
2+ years of applicable work experience</li><li>
Proficiency in Python, specifically with ETL pipelines</li><li>
Strong proficiency in SQL and experience in developing complex queries</li><li>
Experience deploying data pipelines in a cloud environment (any of Azure, AWS, GCP)</li><li>
Excellent communication and interpersonal skills, with the ability to collaborate effectively with data scientists and analysts.</li></ul> 
Preferred Qualifications<ul><li>
Experience working with healthcare data, especially Epic.</li><li>
Experience using GCP&rsquo;s BigQuery</li><li>
Knowledge of data governance best practices in a cloud environment.</li><li>
Experience working with Machine Learning processes.</li></ul> 
Education 
College degree or certification in related fields
Anticipated Weekly Hours
40
Time Type
Full time
Pay Range
The typical pay range for this role is:
$64,890.00 - $173,040.00
This pay range represents the base hourly rate or base annual full-time salary for all positions in the job grade within which this position falls. The actual base salary offer will depend on a variety of factors including experience, education, geography and other relevant factors. This position is eligible for a CVS Health bonus, commission or short-term incentive program in addition to the base pay range listed above. 
Our people fuel our future. Our teams reflect the customers, patients, members and communities we serve and we are committed to fostering a workplace where every colleague feels valued and that they belong.
Great benefits for great people
We take pride in our comprehensive and competitive mix of pay and benefits &ndash; investing in the physical, emotional and financial wellness of our colleagues and their families to help them be the healthiest they can be. In addition to our competitive wages, our great benefits include:<ul><li>
Affordable medical plan options, a 401(k) plan (including matching company contributions), and an employee stock purchase plan.</li><li>
No-cost programs for all colleagues including wellness screenings, tobacco cessation and weight management programs, confidential counseling and financial coaching.</li><li>
Benefit solutions that address the different needs and preferences of our colleagues including paid time off, flexible work schedules, family leave, dependent care resources, colleague assistance programs, tuition assistance, retiree medical access and many other benefits depending on eligibility.</li></ul>
For more information, visit https://jobs.cvshealth.com/us/en/benefits
We anticipate the application window for this opening will close on: 01/09/2026
Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state and local laws.</div>

Analytic Data Engineer

Explore 37+ Sr backend middleware engineer in Washington this December. Find roles across top companies and apply now to boost your career.