Senior Backend Developer jobs in Quantico, VA

McLean, Virginia

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10d ago

Overview We are seeking an experienced Senior Java Backend Developer to design, develop, test, and maintain scalable enterprise applications and backend services. The successful candidate will have strong hands-on experience with Core Java, Spring, Spring Boot, Spring Data JPA, and RESTful API development. The Developer will work across the full application lifecycle, developing reliable backend solutions, integrating with relational and non-relational databases, implementing automated testing

Full-time

Senior Back-End Developer

Chantilly, Virginia

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Today

Overview We are seeking a Java Backend Software Engineer to join a team of developers and cloud engineers responsible for enhancing legacy Public Key Infrastructure (PKI) systems and developing new solutions to support evolving mission requirements. The successful candidate will develop scalable backend applications, integrate systems through APIs, and support the design and implementation of PKI solutions across multiple networks. The team operates within an Agile Scrum framework, delivering

Full-time

Sr. Java Backend Developer

Hybrid in McLean, Virginia

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10d ago

Job Title: Java Backend Developer Location: Mclean, VA or Richmond, VA - Hybird SkillsJava BackendCore Java, Spring Boot, MicroservicesREST APIsDistributed systems and backend architectureAWS Lambda (serverless computing)Other AWS services such as ECS, API Gateway, S3, CloudWatch, IAM.Experience using Claude AI and similar AI tools is a plus.

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Contract

Depends on Experience

Senior Java Backend Developer

Remote

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18d ago

Senior Java Backend Developer Location: Remote must work Pacific Time (PST/PDT) hours Experience: 8+ years Employer: ZAPCOM Role Overview ZAPCOM is seeking a Senior Java Backend Developer to support a client engagement. The ideal candidate will have strong hands-on experience building scalable backend services, developing REST APIs, and delivering reliable applications in a distributed environment. Key Responsibilities Design, develop, and maintain backend applications using Java and Spring Boo

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Full-time

100,000 - 130000

Senior Backend .NET Developer with Automation Experience

Remote

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2d ago

Job Title: Senior Backend .NET Developer Location: Remote Duration Contract through end of 2027 Job Description: Location Position Overview Client is seeking two experienced Senior Backend .NET Developers to join a team focused on improving and modernizing the prior authorization process for specialty care. The team is working to make prior authorization reviews faster and more efficient, reducing delays for providers and helping patients receive appropriate care sooner. The work will focus on i

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Contract

$60 - $70

Senior Backend .NET Developer

Remote

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Today

Job Title: Senior Backend .NET Developer Job Location: Remote Job Type: Full Time Job Description: Develop backend services and REST APIs using C# and .NET. Build business and domain logic using SOLID and Clean Architecture principles. Work with Entity Framework Core, LINQ, SQL Server, and Azure SQL. Design integrations with enterprise and third-party systems. Implement asynchronous processing, background services, and messaging. Work with Azure Service Bus and other messaging technologies. I

Full-time

Software Developer (Backend) Senior

Washington, District of Columbia

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Today

Residency All applicants must currently reside in the United States Overview Join BigBear.ai to modernize and connect mission-critical systems for the Defense Intelligence Agency-blend modern cloud-native engineering with legacy compatibility to deliver secure, reliable services that analysts and operators depend on. Why this role is exciting Direct mission impact: your work keeps legacy and next-gen systems interoperable and mission-ready in a secure environment.Hands-on engineering: design

Full-time

Lead Developer Java Backend

Remote

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2d ago

Job Description: Lead Java Backend DeveloperJob Title: Lead Java Backend Developer Experience: 8+ Years Job Type: Full-Time / Contract Location: Open to All Locations Across the USA Work Model: Onsite / Hybrid / Remote (Based on Client Requirements) Job SummaryWe are seeking an experienced Lead Java Backend Developer to lead the design, development, and implementation of scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java, Spring Boot, microser

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Full-time

55 - 60

Senior Backend Service Maintenance Engineer

Remote

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2d ago

Job Description: Senior Backend Engineer Service MaintenanceRole: Senior / Lead Backend Engineer Mode: Remote Key ResponsibilitiesMaintain and support production backend services, including incident triage, troubleshooting, and recovery. Perform service upgrades, security patches, dependency updates, and cloud infrastructure migrations. Monitor and optimize service reliability using alerts, logs, and dashboards. Reduce alert noise, resolve technical debt, and safely decommission unused services

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Contract

Depends on Experience

Senior Software Engineer (Data Backend)

Vienna, Virginia

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Today

SteerBridge is a modern technology company delivering innovative, mission-focused solutions to the U.S. Government and private sector. Leveraging deep expertise in federal acquisition, digital transformation, and emerging technologies, we deliver agile, commercial-grade capabilities that accelerate operational effectiveness and drive measurable mission success. At the core of SteerBridge is our people-especially the veterans whose leadership, problem-solving mindset, and commitment to excellenc

Full-time

USD 145,000.00 - 175,000.00 per year

Backend Developer - Node JS/ TypeScript / React / AWS

Remote

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16d ago

Position: Senior Backend Developer Node.js / TypeScript / React / AWS Company : Yottaflex AI Technologies Location: Remote Employment Type: Contract Duration: 612 Months (Potential Extension) Job Description We are looking for a highly experienced Senior Full Stack Developer with strong hands-on Node.js and TypeScript backend development experience to design, develop, and deploy scalable enterprise applications. The ideal candidate must be backend-strong while also having solid experience with

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Third Party, Contract

Depends on Experience

Django Backend Lead Developer

Remote or North Carolina

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Today

Job Title: Django Backend Lead Developer Location: Jersey City, NJ/Charlotte, NC (Remote) Job Summary We are seeking an experienced Django Backend Lead Developer to join our team. The ideal candidate will have a strong background in backend development, cloud technologies, and big data processing. This role involves leading technical projects, mentoring junior developers, and ensuring the delivery of high-quality solutions. Key Responsibilities Lead the development of backend systems using Djang

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Contract

Senior Software Engineer, Backend | Audit Product Team

Remote

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Today

Machinify is a leading healthcare intelligence company with expertise across the payment continuum, delivering unmatched value, transparency, and efficiency to health plan clients across the country. Deployed by over 85 health plans, including many of the top 20, and representing more than 270 million lives, Machinify brings together a fully configurable and content-rich, AI-powered platform along with best-in-class expertise. We're constantly reimagining what's possible in our industry, creatin

Full-time

USD 200,000.00 - 230,000.00 per year

Senior Lead Software Engineer, Backend

Remote

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Today

At DraftKings, AI is becoming an integral part of both our present and future, powering how work gets done today, guiding smarter decisions, and sparking bold ideas. It's transforming how we enhance customer experiences, streamline operations, and unlock new possibilities. Our teams are energized by innovation and readily embrace emerging technology. We're not waiting for the future to arrive. We're shaping it, one bold step at a time. To those who see AI as a driver of progress, come build the

Full-time

USD 160,700.00 per year

Lead : Python Backend Developer (Healthcare / Claims)

Remote

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10d ago

Lead Python Backend Developer AWS & AI (Healthcare / Claims) Position: Lead Python Backend Developer AWS & AI Experience: 12+ Years Employment Type: Full-Time Domain: Healthcare / Health Insurance / Claims Mandatory About the Opportunity We are looking for a strong hands-on Python Backend Development Lead with extensive experience in AWS Cloud, Microservices, Distributed Systems, and AI-Assisted Development. The ideal candidate must have deep expertise in Python backend engineering, experie

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Full-time

Depends on Experience

Lead : Python Backend Developer (Healthcare / Claims)

Remote

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12d ago

Easy Apply

Full-time

Depends on Experience

Senior Backend Engineer

Remote

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Today

Who we're looking for As a Senior Backend Engineer, you'll be joining an impactful team of highly skilled engineers who are building the core platform features and services to fuel our rapidly growing company! As a team, we are always working to continuously improve both our product and our craft. The Backend team will focus on developing world-class services and integrations, all the while ensuring to keep our apps secure, high-performing, and most importantly scalable (we're growing!). We're l

Full-time

USD 170,000.00 - 195,000.00 per year

Senior Backend Software Engineer

Remote or San Francisco, California

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Today

Senior Backend Software Engineer Company Description Swish Analytics is a sports analytics, betting and fantasy startup building the next generation of predictive sports analytics data products. We believe that oddsmaking is a challenge rooted in engineering, mathematics, and sports betting expertise; not intuition. We're looking for team-oriented individuals with an authentic passion for accurate and predictive real-time data who can execute in a fast-paced, creative, and continually-evolving

Full-time

USD 150,000.00 per year

Senior Backend Engineer

Remote or Stamford, Connecticut

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Today

RESPONSIBILITIES: Kforce has a client near Stamford, CT that is seeking a Senior Backend Engineer who will work across engineering, product, analytics, and operations to architect durable serverless systems, develop clean and reliable Python services, and power mission-critical workflows such as claims processing, eligibility ingestion, episode creation, provider search, and care coordination. Location: Remote within the U.S. The team is based near Stamford, Connecticut, and candidates must be

Full-time

$150,000 - $190,000 annually

Senior Backend Engineer

Remote or Nashville, Tennessee

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Today

RESPONSIBILITIES: Kforce has a client that is seeking a Senior Backend Engineer who will work across engineering, product, analytics, and operations to architect durable serverless systems, develop clean and reliable Python services, and power mission-critical workflows such as claims processing, eligibility ingestion, episode creation, provider search, and care coordination. Location: Remote within the U.S. The team is based near Stamford, Connecticut, opening an office soon near Nashville, TN

Full-time

$150,000 - $190,000 annually

Senior Backend Developer jobs in Quantico, VA 22134, USA