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Contract Back End Developer Jobs (NOW HIRING)

DataAnnotation

Back End Developer

Wyoming, OH · Remote

$40/hr

We are looking for a Back End Developer to join our team to train AI models. You will measure the ... This is an independent contract position. #J-18808-Ljbffr

Stellar IT Group

Senior Back End Developer

Richfield, MN · Hybrid

$124.70K - $162K/yr

Senior Back End Developer III - AdTech Focus Location: Richfield, MN (Hybrid - 1-2 days onsite per ... Contract (7-12+ Months) Project Scope * Enhance seller-facing campaign management workflows.

DataAnnotation

Back End Developer

Lincoln, NE · Remote

$40/hr

We are looking for a Back End Developer to join our team to train AI models. You will measure the ... This is an independent contract position. #coder #J-18808-Ljbffr

DataAnnotation

$40/hr

We are looking for a Back End Developer to join our team to train AI models. You will measure the ... This is an independent contract position. #coder #J-18808-Ljbffr

Stellar IT Group

Senior Back End Developer

Richfield, MN · On-site

$124.70K - $162K/yr

Senior Back End Developer III - AdTech Focus Location: Richfield, MN (Hybrid - 1-2 days onsite per ... Contract (7-12+ Months) Project Scope * Enhance seller-facing campaign management workflows.

IT America Inc

Java Backend Developer

Dallas, TX · Remote

$51.75 - $67/hr

Remote Duration: Long term contract Key skills: Java, Springboot, Microservices, Kubernetes 10+ years of experience in Java. We are seeking a highly skilled Backend Java Developer to join our dynamic ...

Maximus

Senior Back-End Developer

VA · On-site +1

$120.90K - $157.10K/yr

This position is contingent upon award of the contract. This position requires an active Secret ... engineering tasks for back-end design and development efforts, including but not limited to ...

Sparktek

Senior .NET Backend Developer

Plano, TX · Hybrid

$115.80K - $150.40K/yr

Plano, TX -Hybrid Duration: 6 Months Contract Role Overview: We are looking for a skilled Senior .NET Backend Developer with strong SQL expertise and experience working on application modernization ...

Embtel Inc

Java Back End Developer

Plano, TX · On-site

$48.25 - $62.75/hr

Java Back End Developer (10 opening) Location: Plano, TX (Hybrid Model) Duration: 12+ months Contract One who can work Onsite is preferred NOTE: i94 copy is required with all submissions (H1B ...

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Contract Back End Developer information

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How much do contract back end developer jobs pay per hour?

As of Jun 3, 2026, the average hourly pay for contract back end developer in the United States is $57.73, according to ZipRecruiter salary data. Most workers in this role earn between $47.36 and $68.27 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Contract Back End Developer, and why are they important?

To thrive as a Contract Back End Developer, you need strong skills in server-side programming languages (such as Node.js, Python, or Java), database management, and API development, often supported by a relevant degree or equivalent experience. Familiarity with version control systems like Git, cloud platforms (e.g., AWS, Azure), and containerization tools such as Docker is typically required. Excellent problem-solving, communication, and time management skills help you collaborate effectively and deliver quality work on tight schedules. These skills ensure you can build scalable, reliable back end systems that meet client requirements and project deadlines.

What are some common challenges faced by contract back end developers when integrating with existing systems?

Contract back end developers often encounter challenges such as limited documentation, legacy codebases, and varying technology stacks when integrating with existing systems. Navigating these complexities requires strong problem-solving skills and the ability to quickly understand unfamiliar architectures. Effective communication with internal teams is crucial to clarify requirements and ensure seamless integration, especially within tight project timelines. Adaptability and proactive collaboration can help overcome these hurdles and deliver robust solutions.

What are Contract Back End Developers?

Contract Back End Developers are software professionals who specialize in building and maintaining the server-side components of web applications on a contractual basis. They focus on databases, server logic, APIs, and integration with front-end systems to ensure smooth functionality and performance. Unlike full-time employees, contract developers are typically hired for specific projects or time frames, offering flexibility to both the developer and the employer. They often work with languages like Java, Python, Node.js, or Ruby and must be adept at collaborating with front-end teams and stakeholders.

What is the difference between Contract Back End Developer vs Contract Front End Developer?

AspectContract Back End DeveloperContract Front End Developer
Required SkillsServer-side languages (e.g., Java, Python), databases, API developmentHTML, CSS, JavaScript, UI frameworks
Work EnvironmentBackend systems, server management, database integrationClient-side interfaces, user experience design
Common CertificationsNone specific, but backend certifications (e.g., AWS, Oracle) are commonNone specific, but front end certifications (e.g., React, Angular) are common

Contract Back End Developers focus on server-side logic, databases, and API development, while Contract Front End Developers work on user interfaces and client-side functionality. Both roles require technical skills but differ in their focus areas within software development.

More about Contract Back End Developer jobs
What cities are hiring for Contract Back End Developer jobs? Cities with the most Contract Back End Developer job openings:
What are the most commonly searched types of Back End Developer jobs? The most popular types of Back End Developer jobs are:
What states have the most Contract Back End Developer jobs? States with the most job openings for Contract Back End Developer jobs include:
What job categories do people searching Contract Back End Developer jobs look for? The top searched job categories for Contract Back End Developer jobs are:
Contract Back End Developer jobs near you
Infographic showing various Contract Back End Developer job openings in the United States as of May 2026, with employment types broken down into 1% As Needed, 17% Full Time, 45% Part Time, and 37% Contract. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution, with an average salary of $120,086 per year, or $57.7 per hour.
Back End Developer

Back End Developer

DataAnnotation

Manhattan, NY • Remote

$40/hr

Full-time, Part-time, Contractor

Posted 28 days ago

Job description

We are looking for a Back End Developer to join our team to train AI models. You will measure the progress of these AI chatbots, evaluate their logic, and solve problems to improve the quality of each model. To apply to this role, you will need to be proficient in either Python and/or JavaScript.

Your role will require proficiency in at least one programming language (JavaScript, Python, C#, C++, HTML, SQL, or Swift) in order to solve coding problems (think LeetCode, HackerRank, etc). For each coding problem, you must be able to explain how your solution solves the problem. Benefits This is a full-time or part-time REMOTE position You'll be able to choose which projects you want to work on You can work on your own schedule Projects are paid hourly starting at $40+ USD per hour, with bonuses on high-quality and high-volume work Responsibilities Give AI chatbots coding challenges and evaluate their outputs Evaluate the quality produced by AI models for correctness and performance Qualifications Fluency in English (native or bilingual level) Detail-oriented Experience with algorithms, data structures, and debugging workflows A current, in progress, or completed Bachelor's degree is preferred but not required Notes Payment is made via PayPal.

We will never ask for any money from you. PayPal will handle any currency conversions from USD. Only applicants in the United States will be considered for this role.

This is an independent contract position. #J-18808-Ljbffr

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