Back-End Developer Jobs in ashburn,va

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Sr., Java back-end Developer - Healthcare Domain Must (No C2C Please)

OpTech

•

Remote

Contract

OpTech is seeking for strong Java Developer role for one of their Direct Clients. 100% Remote role. Contract Duration - 5 months. Only W2/No C2C Required Skills: Strong backend Java developer with JDBC/SPRING/SPRINGBOOT/SPRINGBATCH JAVA/J2EE Why work at OpTech? OpTech is a woman-owned company that values your ideas, encourages your growth, and always has your back. When you work at OpTech, not only do you get health and dental benefits on the first day of employment, but you also have training
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Posted 60+ days ago | Updated 8 days ago

Senior Backend Test Engineer (W2 only)

nTech Solutions

•

Reston, Virginia, USA

Contract

Terms of Employment Contract, 9 MonthsThis position is remote. Candidates from DMV area are highly preferred. Candidates based in a commutable distance to Reston, VA will be prioritized.Candidates must be comfortable traveling to Reston, VA roughly once per quarter for PI planning activities.Overview & Responsibilities We are seeking highly skilled Senior Backend Test Engineers to join a dynamic team at a leading health insurance provider. The role focuses on backend testing, automation, and ETL
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Posted 2 days ago

Sr Python Backend Engineer

Ledgent Technology

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Remote

Full-time

No Corp-to-Corp, No 3rd party firms . Job Title: Sr Python Backend Engineer Location: 100% Remote (U.S. Based) Employment Type: Direct-hire Compensation: $150,000 to $190,000 (based on level of experience) . Partnered with a client who is creating cutting-edge AI/ML products (Generative AI) that solve healthcare staffing issues and administrative burdens using conversational AI and their patented voice biomarker technology. . They're seeking a skilled Python Backend Engineer to help design, b
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Posted 4 days ago | Updated 5 hours ago

Sr Backend Engineer (TypeScript)

Ledgent Technology

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Remote

Full-time

No Corp-to-Corp, No 3rd party firms . Job Title: Sr Backend Engineer (TypeScript) Location: 100% Remote (U.S. Remote) Employment Type: Direct-hire Compensation: Up to $190,000 (based on level of experience) . Partnered with a client who is creating cutting-edge AI/ML products (Generative AI) that solve healthcare administrative burdens using conversational AI and their patented voice biomarker technology. . They're seeking a skilled Sr. Backend Engineer to help design, build, and maintai
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Posted 8 days ago | Updated 5 hours ago

Senior Backend Engineer

Randstad Digital

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Remote or Columbus, Ohio, USA

Contract

job summary: Seeking a back end engineer - this is a 100% remote opportunity! location: Columbus, Ohio job type: Contract salary: $95 - 97 per hour work hours: 8am to 5pm education: Bachelors responsibilities: Expertise in Go, Typescript, node.JSProficiency in designing efficient GraphQL API's and microservices for low latency and high availability systemStrong experience with MySQLExperience in cloud environments (AWS & Google Cloud Platform)Experience in TerraformExperience in CloudForma
Posted 17 days ago | Updated 1 hour ago

.Net Backend Architect (Remote)

Neo Prism Solutions, LLC

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Remote

Contract

Job Title: .NET Backend Developer with Azure Remote Job Description: We are looking for a .NET Backend Developer with experience in Microsoft Azure. The candidate should be skilled in C#, .NET Core, and building APIs. Experience with Azure services like App Services
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Posted 4 days ago | Updated 1 day ago

Software Engineer - JAVA - (Remote)

ICF

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Remote or Reston, Virginia, USA

Full-time

The Company ICF is a mission-driven company filled with people who care deeply about improving the lives of others and making the world a better place. Our core values include Embracing Difference; we seek candidates who are passionate about building a culture that encourages, embraces, and hires dimensions of difference. The Team Our Health Engineering Solutions (HES) team works side by side with customers to articulate a vision for success, and then make it happen. We know success doesn't hap
Posted 23 days ago | Updated 4 hours ago

Senior Cloud Developer (AWS)- Remote (Future Opportunity)

ICF

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Remote or Reston, Virginia, USA

Full-time

*We are open to supporting 100% remote work anywhere within the US* * This role is part of our talent pipeline, and while there may not be an immediate opening, we are proactively connecting with qualified candidates for future opportunities* We're seeking a talented Cloud backend developer to join our dynamic team. As a key member of our engineering department, you'll play a pivotal role in designing, developing, and maintaining robust backend applications and services. Responsibilities: Des
Posted 60+ days ago | Updated 4 hours ago

Senior FHIR Software Engineer

ICF

•

Reston, Virginia, USA

Full-time

*We are open to supporting 100% remote work anywhere within the US* ICF is a mission-driven company filled with people who care deeply about improving the lives of others and making the world a better place. Our core values include Embracing Difference; we seek candidates who are passionate about building a culture that encourages, embraces, and hires dimensions of difference. The Team Our Health Engineering Solutions (HES) team works side by side with customers to articulate a vision for succe
Posted 13 days ago | Updated 4 hours ago

Software Java backend Engineer

Marici Solutions

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Remote

Contract

Title: Software Java backend Engineer Location: Remote Long Term Contract 3 round of video interview Mandatory Skills: Backend Java, microservices, Spring Boot, TDD, API, Multithreading Required skills: Spring, Spring Boot, SQL, Microservices, AWS, Backend Development, Kafka, TDD (Test Driven Development) KEY RESPONSIBILITIES Design and Development: o Design, develop, and maintain backend systems using Java (e.g., Spring, Hibernate), ensuring scalability, performance, and maintainability. o Crea
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Posted 1 day ago

Senior React Developer (10+ Years Experience) - Remote

URSI Technologies Inc.

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Remote

Third Party, Contract

Position Senior React Developer (10+ Years Experience)Location RemoteDuration 1+ Year (Extendable) Job Description: We are seeking a highly skilled Senior React Developer with over 10 years of experience in frontend development. The ideal candidate will have deep expertise in JavaScript, React.js, TypeScript, and modern UI/UX principles. You ll be responsible for leading frontend architecture, mentoring developers, collaborating with cross-functional teams, and delivering high-performance, scal
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Posted 44 days ago | Updated 2 days ago

Full Stack Developer

Cymertek Corporation

•

Reston, Virginia, USA

Full-time

Full Stack Developer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY Are you a versatile and innovative developer with a passion for both front-end and back-end development? We are seeking a skilled Full Stack Developer to join our team and contribute to the creation of dynamic, user-centric web applications. In this role, you'll work on a variety of exciting projects, utilizing your expertise to design and implement b
Posted 60+ days ago | Updated 4 hours ago

Full Stack Developer

Cymertek Corporation

•

Chantilly, Virginia, USA

Full-time

Full Stack Developer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY Are you a versatile and innovative developer with a passion for both front-end and back-end development? We are seeking a skilled Full Stack Developer to join our team and contribute to the creation of dynamic, user-centric web applications. In this role, you'll work on a variety of exciting projects, utilizing your expertise to design and implemen
Posted 60+ days ago | Updated 4 hours ago

Principal Cybersecurity Engineer

NuLeap

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Remote or US

Third Party

Job Summary (List Format): - Lead the design and implementation of secure, scalable, and high-performance cloud-based systems. - Architect and develop backend systems using Rust (Tokio, Actix, Axum, Rocket) and Scala (Akka, ZIO, Cats, Play). - Ensure secure execution environments utilizing WebAssembly (WASM). - Employ extensive AWS services (Lambda, ECS, S3, API Gateway, CloudFront, DynamoDB, GuardDuty, WAF, Security Hub, KMS) for cloud infrastructure and security. - Implement and enforce AP
Posted 30 days ago | Updated 8 days ago

Web Developer

Pozent

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Remote or Woburn, Massachusetts, USA

Contract

6 month plus contract opportunity Remote position - CST Overview We are seeking a skilled and reliable Web Developer / Backend Engineer to provide ongoing support and project-based development across our digital ecosystem. This includes building new websites, updating existing websites, and handling server-side tasks and remediation. Familiarity with Microsoft Azure and Kentico CMS is essential. Background Our organization operates multiple web properties and digital tools hosted primarily in
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Posted 50 days ago | Updated 11 hours ago

Python Backend Engineer (React) - Remote

FlairTech Solutions

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Remote

Contract

Role: Python with React Consultant Location: Remote Duration: Long Term Develop and maintain user interfaces using React.js . Design and build RESTful APIs and server-side logic using Python Experience using CI/CD tools Understanding of cloud platforms (Google Cloud Platform preferred, then Azure, then AWS) Integrate with databases (BigQuery, Spanner, MongoDB, etc)
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Posted 1 day ago | Updated 1 day ago

Accessibility Web Developer (Mobile + Web)

Allwyn Corporation

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Remote

Contract, Third Party

NOTE:This is 4 month contract only. 40 Hrs / per week. We are looking for a skilledFront-End Developerwho can contribute across bothmobile and web (.com)platforms. The ideal candidate will have hands-on experience withAngular and Ionic frameworks, and a strong understanding ofADA complianceto ensure accessibility standards are met across all digital experiences. Responsibilities: Develop and maintain responsive and accessible applications across mobile and web platforms.Collaborate with UI/UX
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Posted 31 days ago | Updated 3 days ago

Full Stack Developer

Cymertek Corporation

•

Tysons, Virginia, USA

Full-time

Full Stack Developer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY Are you a versatile and innovative developer with a passion for both front-end and back-end development? We are seeking a skilled Full Stack Developer to join our team and contribute to the creation of dynamic, user-centric web applications. In this role, you'll work on a variety of exciting projects, utilizing your expertise to design and implement b
Posted 60+ days ago | Updated 4 hours ago

Node.js Software Engineer

Booz Allen Hamilton

•

Chantilly, Virginia, USA

Full-time

Job Number: R0221617 Node.js Software Engineer The Opportunity: As a back-end developer, you know that a good site or system needs the right combination of clean code, APIs, analytics, and infrastructure to develop a user-focused solution. We're looking for an experienced back-end developer with the sof tware engineering skills it takes to identify potential risks, contribute to solution development, and create efficient and effective systems for our clients. As a back-end developer at Booz All
Posted 7 days ago | Updated 5 hours ago

Software Engineer

Booz Allen Hamilton

•

Reston, Virginia, USA

Full-time

Job Number: R0221408 Software Engineer The Opportunity: As a back-end developer, you know that a good site or system needs the right combination of clean code, APIs, analytics, and infrastructure to develop a user-focused solution. We're looking for a back-end developer with the sof tware engineering skills it takes to help identify potential risks, contribute to solution development, and create efficient and effective systems for our clients. As a back-end developer at Booz Allen, you'll use th
Posted 10 days ago | Updated 5 hours ago