Invisible Expert Marketplace

About the Company

We are the AI training and scaling partner for the leading foundation model providers, enterprises, and governments, bridging the gap between AI potential and production.

Our unique AI Process Platform combines elite global human expertise, cutting edge technology, and deep institutional knowledge gained by training 80% of the world’s leading AI models.

Listed Jobs

Company Name

Invisible Expert Marketplace

Job Title

Front End Dev Specialist

Job Description

**Job Title:** Front End Dev Specialist **Role Summary:** Develop and maintain responsive, high-performance front-end applications using React.js, JavaScript, React Native, TypeScript, and Python. Focus on scalable design systems, cross-platform compatibility, and seamless integration with backend services. **Expectations:** - 3+ years of production-level front-end development experience. - Proficiency in React.js, JavaScript, React Native, and TypeScript. - Experience with Python for backend integration. - Hands-on Git workflow and collaborative development practices. **Key Responsibilities:** - Build accessible, responsive UIs using Shadcn UI/Tailwind CSS. - Design and maintain scalable, reusable design systems. - Collaborate with backend engineers to implement API integrations. - Optimize application performance (load times, rendering, runtime). - Write clean, well-documented, reusable front-end code. - Conduct code reviews and identify performance inefficiencies. - Implement automated testing for front-end components. **Required Skills:** - React.js, JavaScript, React Native, TypeScript. - Python for backend integration. - Shadcn UI, Tailwind CSS. - API integration and performance optimization. - Git-based version control workflows. **Required Education & Certifications:** Not specified.

Wideopen, United kingdom

Remote

Junior

12-09-2025

Company Name

Invisible Expert Marketplace

Job Title

Full Stack Developer Engineer Specialist

Job Description

**Job Title**: Full Stack Developer Engineer Specialist **Role Summary** Seeking a client-facing developer with 3-5 years of experience in full-stack development, automation, and API integration, specializing in Python, JavaScript/Node.js, and platform engineering. **Expectations** Demonstrate independent operation, strong problem-solving, and client communication skills. Must deliver scalable, maintainable solutions with minimal oversight. **Key Responsibilities** - Design and implement scalable automation workflows and API integrations for client systems. - Develop high-performance backend services and logic using Node.js, Python, Docker, and GraphQL. - Contribute to modular, reusable system architecture ensuring robustness, scalability, and alignment with best practices. - Translate client business requirements into technical solutions via scripting (Python), API/backend development, and containerized deployments. - Balance development of complex engineering solutions with business-logic optimization for high-growth production environments. **Required Skills** - Proficiency in Python and JavaScript/Node.js for full-stack development. - 2-3 years experience with Node.js, Python, Docker, and GraphQL for platform development. - Strong Git/GitHub version control and adherence to software engineering best practices. - Experience in backend engineering, frontend development, or prompt engineering. **Required Education & Certifications** Not specified.

Wideopen, United kingdom

Remote

Junior

11-09-2025

Company Name

Invisible Expert Marketplace

Job Title

Jr. Backend Engineer Specialist

Job Description

**Job Title:** Jr. Backend Engineer Specialist **Role Summary:** Design and deploy scalable backend systems using cloud-native architectures, containerization, and modern API frameworks to support production-grade applications. Focus on microservices, event-driven systems, and infrastructure orchestration. **Expectations:** - 3+ years experience building/operating scalable backend systems in production environments. - Proven ability to deliver high-performance APIs, containerized deployments, and cloud-based infrastructure on GCP. **Key Responsibilities:** - Develop and maintain backend services with Node.js, Python, Express.js, and REST/GraphQL APIs. - Containerize and deploy applications using Docker and Kubernetes on GCP. - Architect and implement microservice-based, event-driven systems with RabbitMQ, Redis, and Git-based workflows. - Collaborate on designing distributed systems for scalability, reliability, and seamless integrations. **Required Skills:** - Proficiency in **Node.js, Python, JavaScript**. - Strong understanding of **Express.js, REST, GraphQL**. - Experience with **Docker, Kubernetes, GCP**. - Working knowledge of microservices architecture, message queues (**RabbitMQ**, **Redis**), and event-driven design. - Familiarity with **Git workflows** and distributed system principles. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Engineering, or equivalent experience. - Certifications in cloud technologies (e.g., **Google Cloud**) or containerization tools preferred.

Wideopen, United kingdom

Remote

Junior

11-09-2025

Company Name

Invisible Expert Marketplace

Job Title

HTML Coding Specialist - AI Trainer

Job Description

**Job Title:** HTML Coding Specialist - AI Trainer **Role Summary:** Shape AI advancement by leveraging HTML expertise to generate high-quality training data for language models, focusing on software engineering concepts and technical problem-solving. **Expectations:** Challenge AI models with advanced technical scenarios, document failures, and refine prompt engineering strategies to enhance model reasoning and coding accuracy. **Key Responsibilities:** - Engage AI in software engineering tasks using HTML to validate logical accuracy and coding fluency. - Evaluate code quality, clarity, and error-resolution processes in technical scenarios. - Capture reproducible error traces and analyze failure modes for model improvement. - Collaborate on optimizing prompt engineering frameworks and evaluation metrics. **Required Skills:** - Proficiency in HTML, algorithms, data structures, and software architecture. - Experience in frontend/backend development, cloud infrastructure, and systems programming. - Understanding of asynchronous programming, RESTful APIs, memory management, and secure coding. - Strong technical writing and metacognitive communication to "show work" in model interactions. **Required Education & Certifications:** - Bachelor’s/Master’s/PhD in Computer Science, Software Engineering, or related technical field. - Demonstrated HTML expertise through real-world projects, technical writing, or open-source contributions.

Wideopen, United kingdom

Remote

11-09-2025