Posted Oct 23, 2026

Full-Stack Software Engineer

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We are sharing a specialised consulting opportunity for experienced Full-Stack Software Engineers with strong expertise across front-end and back-end development, application architecture, debugging, APIs, databases, service integration, and multi-language software engineering to contribute to an advanced AI training and software-evaluation project. Selected professionals will create, solve, review, and validate challenging software-engineering tasks across complete application stacks. The work requires hands-on experience across both front-end and back-end systems, strong debugging skills, and the ability to navigate unfamiliar repositories and evaluate code for correctness, performance, security, and maintainability. Key Responsibilities - Full-Stack Development & Integration - Develop and modify front-end and back-end application components - Build user-facing features, APIs, services, and supporting data models - Work across browser applications, databases, external integrations, and service layers - Manage application state, authentication, persistence, and client-server interactions - Implement changes that fit existing architecture and coding conventions - Debugging & Architecture - Diagnose failures involving application state, APIs, networking, authentication, databases, and deployment - Trace requests and data across system boundaries to identify root causes - Work effectively within unfamiliar repositories and understand existing architecture - Evaluate architectural fit, system dependencies, and implementation trade-offs - Develop technically sound and maintainable fixes - Multi-Language Engineering & Testing - Review and modify code across Python, JavaScript, TypeScript, Java, Node.js, Rust, Go, or comparable technologies - Translate software implementations between languages where required - Preserve intended behaviour and architectural constraints - Develop or review unit, integration, regression, and end-to-end tests - Validate fixes and identify missing test coverage - AI-Generated Code Evaluation - Review AI-generated solutions for correctness, completeness, performance, security, and maintainability - Identify implementation or architectural weaknesses - Assess whether solutions fit repository conventions - Provide structured technical feedback - Document important engineering decisions and findings clearly Ideal Profile - Strong professional experience developing production full-stack applications - Meaningful hands-on experience with both front-end and back-end engineering - Production experience with multiple programming languages - Strong knowledge of browser applications, APIs, databases, application state, and service integration - Experience contributing to complete software-system architecture - Ability to work effectively in unfamiliar codebases - Strong debugging and technical problem-solving skills - Experience with Python, JavaScript, TypeScript, Java, Node.js, Rust, Go, or comparable languages - React experience is valuable - Ability to evaluate code for correctness, security, performance, and maintainability - Experience translating implementations between programming languages is advantageous - No prior AI-training or model-evaluation experience is required Engagement Details - Part-time independent contractor engagement - Fully remote and open globally - Expected commitment: approximately 15 hours per week - Flexible schedule; contributors may choose their working hours and days, including weekends, provided there is regular activity - Displayed compensation range: $50–$100/hour - Actual compensation structure is output-based, with payment made per task that meets project specifications - Task completion time may vary depending on experience and workflow - Minimum weekly submission requirements apply; the source does not specify the exact number of required tasks - Work will involve full-stack development, APIs, databases, debugging, architecture, testing, multi-language engineering, and AI-generated code evaluation - Roles are typically filled within approximately 48 hours - Selected experts are expected to begin initial tasks within approximately 24–48 hours after onboarding - Project scope, repositories, languages, and evaluation standards may evolve depending on project requirements - Work must be completed without using confidential or proprietary information belonging to any employer, client, private repository, software organisation, or other third party About the Platform - This opportunity is available through 24-MAG LLC. We connect experienced professionals with remote consulting opportunities across technical, evaluation, and project-based workstreams. - By submitting this application, you acknowledge that your information may be processed by 24-MAG LLC for recruitment and opportunity matching in accordance with our Privacy Policy: https://www.24-mag.com/privacy-policy