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Freelance Senior Backend Developer Jobs (NOW HIRING)

Judge Group, Inc.

Back-end Developer - V

Bedminster, NJ

$122K - $159K/yr

We are seeking a highly skilled Senior Back-end Developer with strong expertise in Java, Microservices, and NoSQL (Cassandra) to join our team. This role involves designing and implementing scalable ...

Stefanini

Senior Backend Developer

Dearborn, MI

$111K - $144K/yr

Stefanini is looking for a Senior Backend Developer (Dearborn, MI) For quick apply, please reach out to Adil Khan at / We are looking for candidate who will develop and maintain the back-end/ server ...

Stefanini

Senior Backend Developer

Dearborn, MI

$111K - $144K/yr

Stefanini is looking for a Senior Backend Developer (Dearborn, MI) For quick apply, please reach out to Fardeen Ali at / Employees in this job function develop and maintain the back-end/ server-side ...

Surefront

$129K - $168K/yr

We are looking for an experienced Senior Backend Developer to help lead efforts on the back end of our enterprise-grade system. In this role, you will work closely with members of the engineering and ...

Galaxy

Senior Backend Developer - Brokerage

New York, NY · On-site +1

$131K - $171K/yr

This role is a Senior Back End Developer for an exciting new business initiative at Galaxy. In this position, you'll design, develop, and optimize robust, scalable software back end that powers our ...

Maximus

Senior Back End Developer

OR · Remote

$125K - $180K/yr

General information Job Posting Title Senior Back End Developer Date Friday, May 8, 2026 City Remote Country United States Working time Full-time Description & Requirements Maximus is a trusted ...

Maximus

Senior Back End Developer

Fort George G Meade, MD · Hybrid

$125K - $150K/yr

General information Job Posting Title Senior Back End Developer Date Friday, May 1, 2026 City Fort Meade State MD Country United States Working time Full-time Description & Requirements Maximus is a ...

GPRS

Senior Back-End Developer

Maumee, OH

$113K - $147K/yr

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 ...

SLR Search

Hybrid Senior Backend Engineer

New York, NY · Hybrid

$200K - $250K/yr

Join an elite team as Senior Backend Engineer architecting the AI-driven infrastructure that democratizes access to high-skilled US immigration. Senior Backend Engineer Benefits -- Starting Salary ...

ICONSTAFF

Senior Backend Engineer

Boston, MA · Remote

$160K - $240K/yr

Senior Backend Engineer Role The Opportunity As a Senior Backend Engineer, you'll design and build scalable backend systems for an AI-driven data platform. You'll lead technical projects, handle ...

Maximus

Senior Back End Developer

VA · On-site +1

$120K - $157K/yr

General information Job Posting Title Senior Back End Developer Date Thursday, May 14, 2026 City Remote Country United States Working time Full-time Description & Requirements Maximus is a trusted ...

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How much do freelance senior backend developer jobs pay per year?

As of Jun 19, 2026, the average yearly pay for freelance senior backend developer in the United States is $139,839.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,500.00 and $156,500.00 per year, depending on experience, location, and employer.
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Freelance Senior Backend Developer jobs near you
Back-end Developer - V

Back-end Developer - V

Judge Group, Inc.

Bedminster, NJ

$122K - $159K/yr

Other

Posted 17 days ago

Job description

Location: Bedminster, NJ Salary: Negotiable Description: Our client is currently seeking a Back-end Developer - V
Senior Back-end Developer (Java) Contract!W2
This job will have the following responsibilities:
  • We are seeking a highly skilled Senior Back-end Developer with strong expertise in Java, Microservices, and NoSQL (Cassandra) to join our team. This role involves designing and implementing scalable, cloud-enabled applications using open-source technologies and microservices architecture. The ideal candidate will have a deep understanding of system design, software engineering principles, and cloud infrastructure (AWS), along with excellent communication and problem-solving skills.

Qualifications & Requirements:
    • Design, architect, and implement backend solutions using Java, Spring Boot, Microservices, and Cassandra NoSQL.
    • Collaborate with data and project managers to understand system requirements and business needs.
    • Develop and implement new systems, resolve software errors, and optimize performance.
    • Participate in all phases of the software development lifecycle including design, development, testing, deployment, and production support.
    • Communicate effectively with external teams and business clients to ensure optimal customer experience.
    • Create and maintain design documents and participate in requirement gathering sessions.
    • Manage multiple assignments and deliver high-quality solutions in a fast-paced environment.

    Required Skills & Qualifications:
    • 10+ years of experience in software development.
    • Bachelor's degree in computer science, Software Engineering, Electronics, or Electrical Engineering.
    • Strong experience with Java, J2EE, Spring Boot, and Microservices architecture.
    • Hands-on experience with AWS cloud services (AWS certification preferred).
    • Proficient in DevOps tools, UNIX environment, shell scripting, and CRON jobs.
    • Experience with J2EE application servers like WebSphere, Tomcat.
    • Familiarity with NoSQL databases, especially Cassandra.
    • Strong analytical and diagnostic skills.
    • Experience with agile development methodologies.
    • Knowledge of XML schemas, JIRA, Confluence, Git, and Stash.
    • Competency in Oracle SQL/PL-SQL and tools like SQL Developer, Toad, SoapUI, and XML Spy.
    • Excellent written and oral communication skills.
    • Strong teamwork and stakeholder management abilities.

    Preferred Certifications:
    • AWS Certified Developer or Architect
    • Cassandra Certification

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This job and many more are available through The Judge Group. Please apply with us today!

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