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Senior Javascript Engineer Jobs in Florida (NOW HIRING)

Senior Software Engineer

Orlando, FL · On-site

$114K - $150K/yr

We are seeking a Senior Software Engineer to join our collaborative and inclusive team. The ... Java, JavaScript, C/C++, C#, Swift, Python, PHP, Go, or Ruby. * Knowledge of software development ...

Senior Software Developer

Doral, FL · On-site

$50.50 - $66.50/hr

The Senior Software Developer advances our customer's Enterprise Data Architecture (EDA) by ... Use JavaScript applications that follow industry-standard design patterns, development ...

Senior Software Developer

Doral, FL · On-site

$50.50 - $66.50/hr

The Senior Software Developer advances our customer's Enterprise Data Architecture (EDA) by ... Use JavaScript applications that follow industry-standard design patterns, development ...

Senior Java Software Engineer

Tampa, FL · On-site

$118K - $155K/yr

Tampa FL Jobs, Senior Java Software Engineer, Java, J2EE, Spring, Hibernate, JavaScript, MySQL ... Servlets, JDK, Windows, UNIX, Shell Scripting, Skybot, CRON, Software Developer, Programming ...

Senior Software Engineer, Black Diamond

Jacksonville, FL · Hybrid

$113K - $149K/yr

Advanced skills with JavaScript utilizing the latest JavaScript features in ES2015+ * Experience in one or more JavaScript frameworks (React preferred) * Superior knowledge of and experience with ...

Applications Development Analyst (Senior Web Developer) Location: Boca Raton, FL - Onsite Job ... Develop both front-end and back-end components using HTML, CSS, JavaScript, Bootstrap, and modern ...

Senior Software Developer

Doral, FL · On-site

$52.25 - $68.75/hr

Job Title Senior Software Developer Location Doral, FL 33122 US (Primary) Category Intelligence Job ... Use JavaScript applications that follow industry-standard design patterns, development ...

Sr. Engineer, End User Technology

Miami, FL

$99K - $136K/yr

The Senior Engineer, End User Technology at Kaseya is responsible for designing, supporting ... Develop, maintain, and improve automation using PowerShell, Python, JavaScript, HTML, or similar ...

Sr. Software Engineer

Jacksonville, FL · On-site

$110K - $145K/yr

We are looking for a Sr. Software Engineer to help shape modern cloud platforms in Jacksonville ... NET, JavaScript, and React.js for building modern full-stack applications. • Advanced experience ...

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Showing results 1-20

Senior Javascript Engineer information

See Florida salary details

$93.4K

$125.2K

$142.7K

How much do senior javascript engineer jobs pay per year?

As of Jun 17, 2026, the average yearly pay for senior javascript engineer in Florida is $125,231.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,600.00 and $134,900.00 per year, depending on experience, location, and employer.

What does a Senior JavaScript Engineer do?

A Senior JavaScript Engineer is responsible for designing, developing, and maintaining complex web applications using JavaScript and related technologies. They often lead development teams, make architectural decisions, and ensure best coding practices are followed. In addition to writing code, they may mentor junior developers, review code for quality, and collaborate with cross-functional teams to deliver high-quality software solutions.

What are some common challenges faced by Senior JavaScript Engineers when leading projects with cross-functional teams?

Senior JavaScript Engineers often encounter challenges such as aligning frontend and backend development timelines, ensuring code quality across distributed teams, and effectively communicating complex technical concepts to non-technical stakeholders. Managing dependencies between various team members and integrating new technologies or frameworks can also present difficulties. Successful engineers overcome these challenges by fostering clear communication, implementing robust documentation, and promoting collaborative problem-solving within agile workflows.

What are the key skills and qualifications needed to thrive as a Senior Javascript Engineer, and why are they important?

To thrive as a Senior Javascript Engineer, you need deep expertise in JavaScript, modern front-end frameworks (like React or Angular), and a solid grasp of software engineering principles, typically supported by a degree in computer science or equivalent experience. Familiarity with build tools (Webpack, Babel), version control systems (Git), and automated testing frameworks is crucial for efficient development. Strong problem-solving skills, effective communication, and leadership abilities help you mentor team members and collaborate on complex projects. These skills are vital for delivering high-quality, scalable applications and driving innovation within development teams.
What are popular job titles related to Senior Javascript Engineer jobs in Florida? For Senior Javascript Engineer jobs in Florida, the most frequently searched job titles are:
What job categories do people searching Senior Javascript Engineer jobs in Florida look for? The top searched job categories for Senior Javascript Engineer jobs in Florida are:
What cities in Florida are hiring for Senior Javascript Engineer jobs? Cities in Florida with the most Senior Javascript Engineer job openings:
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Infographic showing various Senior Javascript Engineer job openings in Florida as of June 2026, with employment types broken down into 80% Full Time, and 20% Part Time. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $125,231 per year, or $60.2 per hour.

Javascript - Senior Developers - AI Training - Jacksonville, USA

Prolific Academic Ltd

Jacksonville, FL • On-site, Remote

$50/hr

Full-time

Posted 19 days ago


Job description

JavaScript Specialist- AI TrainingAbout Prolific

Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world.

Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences, knowledge, and skills.

The role

We're looking for JavaScript Experts to join our Expert Network to help train and evaluate cutting-edge AI models using real engineering expertise. If you have the necessary experience, we'll send you a quick 10- to 15-minute test to assess your skills and suitability for AI tasks. If successful, you'll be invited to join Prolific as a participant, where you'll get paid to train and evaluate powerful AI models.

Researchers looking for your skills tend to pay up to $50 per hour. You must be prepared to complete paid tasks that require one hour of uninterrupted work, though many are shorter.

What you'll bring
  • Education: a BS, MS, or PhD in Computer Science, Software Engineering, or a closely related technical field.
  • Professional Experience: professional experience building scalable web applications using JavaScript/TypeScript.
  • Coding Proficiency: ability to solve LeetCode Medium to Hard-level problems in JavaScript independently.
  • Deep Domain Knowledge: expert understanding of the Event Loop, closures, prototypical inheritance, and asynchronous patterns (Promises, async/await).
  • Code Quality: a high standard for clean code, including modularity, readability, and adherence to modern ES6+ standards.
  • Attention to Detail: ability to spot subtle logical flaws, memory leaks, or security vulnerabilities (e.g., XSS, prototype pollution) in model-generated code.

What you'll be doing in the role

  • Evaluate Code Accuracy: review AI-generated JavaScript and TypeScript code for functional correctness and adherence to best practices.
  • Validate Logic & Reasoning: audit the step-by-step explanations provided by AI for complex algorithmic solutions to ensure they are logically sound.
  • Conduct Execution Testing: execute model-generated scripts in appropriate environments (Node.js or Browser consoles) to verify performance and output.
  • Annotate Model Performance: identify areas where a model provides inefficient solutions, deprecated syntax, or hallucinated library methods.
  • Refine Technical Logic: provide structured feedback on how models reason through frontend or backend architecture discussions.
Key Technologies
  • Core Language: expert mastery of JavaScript (ES6+) and TypeScript.
  • Frameworks: extensive experience with React, Node.js, Vue, or Angular.
  • Testing & Tools: proficiency with Jest, Cypress, Webpack, and Vite.
  • Backend & API: strong understanding of RESTful APIs, GraphQL, and server-side logic in a Node environment.
Why Prolific is a great platform to join as a Participant

Joining our Expert Network will give you the chance to influence the AI models of the future using professional expertise. Once you pass our assessment, you can join Prolific in just 15 minutes, and start enjoying competitive pay rates, flexible hours, and the ability to work from home.

We've built a unique platform that connects researchers and companies with a global pool of participants, enabling the collection of high-quality, ethically sourced human behavioural data and feedback. This data is the cornerstone of developing more accurate, nuanced, and aligned AI systems.

We believe that the next leap in AI capabilities won't come solely from scaling existing models, but from integrating diverse human perspectives and behaviours into AI development. By providing this crucial human data infrastructure, Prolific is positioning itself at the forefront of the next wave of AI innovation – one that reflects the breadth and the best of humanity.

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Privacy Statement

By submitting your application, you agree that Prolific may collect your personal data for recruiting and global organisation planning. Prolific's Candidate Privacy Notice explains what personal information Prolific may process, where Prolific may process your personal information, its purposes for processing your personal information, and the rights you can exercise over Prolific's use of your personal information.