Senior Backend Developer jobs in Warrenton, VA

Reston, Virginia

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Today

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. This position requires a

Full-time

Senior Java Backend Developer

Remote

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Today

Job Title: Senior Java Backend Developer Location: Remote Candidate must be from LATAM Job Overview: We are looking for an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications and distributed systems. The ideal candidate will have strong hands-on experience with Java, Spring Boot, REST APIs, microservices, SQL/NoSQL databases, messaging systems, AWS, Docker, and Kubernetes, along with a solid understanding of data structures,

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Third Party, Contract

Senior Backend Software Developer

Remote or Maumee, Ohio

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Today

Job Summary: The Senior Back-End Software Developer will be responsible for designing and developing scalable, secure, and high-performance back-end web-based applications and services, including maintenance, testing, and debugging. In addition to development, this individual will collaborate with a team of developers and occasionally assist junior developers in all facets of software development. Job Goals: Contribute to all stages of the software development lifecycle, from feasibility, soluti

Full-time

Compensation information provided in the description

Senior Backend Software Developer

Remote

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Today

ABOUT SLATE At Slate, we're building safe, reliable vehicles that people can afford, personalize and love-and doing it here in the USA as part of our commitment to reindustrialization. The spirit of DIY and customization runs throughout every element of a Slate, because people should have control over how their trucks look, feel, and represent them. WHO WE ARE LOOKING FOR Slate is looking for a Senior Backend Software Developer to help make our software development in the electric vehicle spa

Full-time

USD 135,000.00 - 190,000.00 per year

Back-end developer, Java

Remote

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9d ago

Senior Back-End Developer (Cloud & IoT) We're looking to connect with experienced Back-End Engineers who enjoy building the cloud platforms behind connected IoT products, smart devices, and real-time video applications. We're looking for engineers with experience in: -Java backend development -AWS cloud services & scalable distributed systems -RESTful APIs powering mobile applications and connected devices -Kubernetes, DynamoDB & Git -Secure, high-performance cloud services -Automated testing an

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Contract

$80

Java Backend Developer Senior

Ashburn, Virginia

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Today

Job ID: 2616004 Location: Ashburn, VA, US Date Posted: 2026-09-01 Category: Software Subcategory: SW Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: ORA_ON_SITE Description SAIC is currently seeking a motivated, career and customer oriented, and hands on mid-level Java Backend Developer with cloud experience to join our team to begin an exciting and challenging career

Full-time

USD 120,001.00 - 160,000.00 per year

Lead Java Backend Engineer - AWS Cloud Migration

Hybrid in Reston, Virginia

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15d ago

Lead Software Engineer Location: Reston, VA (Hybrid) Duration: Contract through end of year (extension possible) Candidates must reside in the DMV area. OverviewWe are seeking a Senior Java Backend Developer to support a major AWS cloud migration initiative. This role is ideal for an experienced engineer with deep expertise in Java, Spring Framework, Microservices, AWS Migration, and enterprise-level backend development. The selected candidate will play a key role in designing, developing, and

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Contract

$88.64

Back-End Software Developer

Chantilly, Virginia

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Today

Overview VTG is seeking a talented and experienced Back-End Software Developer to join our dynamic and innovative team in Chantilly, VA or Herndon, VA. As a Back-End Software Developer, you will play a key role in designing, developing, and maintaining high-quality software applications. You will work closely with cross-functional teams to understand requirements, translate them into technical solutions, and deliver innovative software products that meet customer needs. What will you do? Desin

Full-time

Senior Backend Software Engineer, TS/SCI with CI Poly - $180K-$210K + 15% 401k

Chantilly, Virginia

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Today

About Millennial Software: Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine learning. 100% company-paid medical, dental, and vision premiums for you and all dependentsAbility to get increased salary if you don't need medical/dental/vision100% company-paid disability and life insurance benefits 15% 401(k) company contribution 30 days of PTO/holidays Generous training budget

Full-time

USD 180,000.00 - 210,000.00 per year

Senior Backend Engineer - Adobe Commerce/Magento 2

Remote

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Yesterday

Lead Backend Engineer PHP / Adobe Commerce (Magento 2)Remote Opportunity Full Time OverviewSeeking a Lead Backend Engineer with 6+ years of backend development experience and strong expertise in PHP and Adobe Commerce/Magento 2. The role focuses on APIs, GraphQL, event-driven architecture, AWS, performance optimization, automated testing, CI/CD, and production support. Key ResponsibilitiesDevelop and extend Magento 2 modules, APIs, GraphQL resolvers, services, plugins, observers, cron jobs, an

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Full-time

Depends on Experience

Backend Developer Level III

Remote or Dallas, Texas

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Today

Role Overview We are seeking a Lead Backend Engineer to design, build, and scale large-scale distributed systems supporting enterprise fulfillment platforms. This is a highly hands-on engineering role focused on Node.js, TypeScript, Azure, microservices, and distributed systems. The ideal candidate will have recent production experience building and operating resilient cloud-native backend systems and be comfortable with scalability, reliability, messaging, observability, failure handling, and

Full-time

USD 55.00 - 60.00 per hour

Senior Backend Engineer // Fully Remote // TypeScript Node.JS

Remote

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Today

A fast-growing B2B infrastructure platform is expanding its engineering team and looking for a Senior Backend Engineer to join one of its most critical and high-velocity teams. This is a full-time, 100% remote opportunity built around a TypeScript, Node.js, and Nest.js stack, with microservice architecture at the core. The platform powers real-time services for a rapidly growing merchant base and operates at meaningful scale. EST hours are required. This team owns more services than any other i

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Full-time

$170000 - $200000

Senior Backend Engineer

Remote

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Today

Highlights: Location: Remote (CET hours preferred) Language: Russian-speaking team About Fundraise Up We're Fundraise Up - a global fundraising platform built to make donating to nonprofits fast, seamless, and accessible to all. Every month, our technology powers tens of millions of dollars in donations across the globe. We focus on innovation that directly impacts results: faster load times, higher conversion rates, global payment support, and accessibility-first design. Our platform is tru

Full-time

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

Lead Backend Developer / Remote EST/CST No PST or MST

Remote

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22d ago

We are seeking aLead Backend Engineerto help design, build, and scale the large-scale distributed systems supporting enterprise fulfillment platforms. This is a highly hands-on engineering role for an experienced backend developer who enjoys solving complex distributed-systems problems, building resilient cloud-native applications, and taking ownership of systems operating at enterprise scale. This is aNode.js-first environment. Candidates must have substantial, recent, production-level experien

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Full-time, Third Party

60 - 65

Senior Backend Engineer - Node.js/TypeScript, Distributed Systems

Remote

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20d ago

Title: Backend Developer Level 3 Alternate Title: Senior Backend Engineer - Node.js/TypeScript, Distributed Systems Job Duration: 12 Month(s) Job Category: Development Mode: Remote Job Description: We're looking for a Senior Backend Engineer to help build and scale the largescale distributed systems behind our fulfillment platforms. This is a hands-on engineering role for someone who enjoys complex distributed systems problems, designs resilient cloud-native services, and can operate with a high

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Contract, Third Party

Depends on Experience

Sr/Staff Software Engineer, Backend | Web Products

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 - 250,000.00 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

Senior Backend Engineer

Remote or Norwalk, Connecticut

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Today

RESPONSIBILITIES: Kforce has a client in Norwalk, 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. What You'll Do: * Design and build large-scale, resilient serverless systems using AWS Lambda, API Gatewa

Full-time

$150,000 - $190,000 annually

*Senior Full Stack Engineer (Backend focused - Nodejs, Javascript, AWS exp.) - W2 role

Remote

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9d ago

Kellton Tech is a full-service software development company, offering end-to-end IT solutions, strategic technology consulting and product development services in Web, SMAC (Social, Mobile, Analytics, Cloud), ERP-BPM, and IoT space Our methodology of inventing infinite possibilities with technology helps us develop best in-class and cost effective solutions for our clients. Currently Kellton Tech is looking for talented resources for one of our listed client. Below are the position details Posit

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Contract, Third Party

Depends on Experience

Senior Backend Developer jobs in Warrenton, VA, USA