Xperteez Technology

Provide expert IT strategy, systems architecture, and infrastructure insights to train AI systems and improve operational efficiency. | 5+ years IT or Systems Manager experience with technical leadership, enterprise infrastructure, security frameworks, and vendor management. | Role Title: IT Manager Role Type: Contract Location: Remote Required Skills: * IT Strategy * Systems Architecture * Team Leadership * Vendor Management * Security Compliance In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters. This opportunity is best suited for experienced IT/Systems Managers who have a strong track record leading technical teams or overseeing complex infrastructure for 5+ years. Scope of Work: * Provide comprehensive input and insights on IT strategy development, systems architecture planning, and infrastructure optimization scenarios. * Evaluate and comment on real-world problems in vendor management and procurement processes, ensuring effective collaboration and system integration. * Contribute real-world examples and recommendations regarding security compliance, risk mitigation, and regulatory standards. * Review and critique proposed IT solutions, identifying potential gaps or areas for improvement in architecture and implementation. * Share best practices in team leadership, knowledge transfer, and upskilling within technical organizations. * Deliver detailed feedback on documentation, workflows, and process designs to improve clarity, feasibility, and operational efficiency. * Participate in structured discussions and written assignments to inform the development of smarter AI tools for IT professionals. Preferred Qualifications: * 5+ years of experience as an IT/Systems Manager, leading technical teams or managing enterprise-scale infrastructure. * Proven expertise in IT strategy, systems architecture, and technology roadmapping. * Strong background in vendor management, contract evaluation, and integration of third-party solutions. * In-depth knowledge of security compliance frameworks (e.g., ISO 27001, NIST, GDPR) and risk management practices. * Demonstrated ability to communicate complex technical concepts clearly in both written and verbal formats. * Experience mentoring or coaching IT professionals, with a passion for fostering growth and best practices. * Ability to analyze and assess documentation, workflows, and processes from a holistic IT management perspective.

Create reinforcement learning environments, fix bugs, refactor code, and design reproducible environments to measure AI performance. | Proficiency in C++, Python, Java, or Rust with deep understanding of algorithms, data structures, debugging, and performance optimization in large-scale distributed codebases. | Job Title: Senior Software Engineer Job Type: Contract (~15 hrs a week) Location: Remote Required Skills * Python3 * JAVA * Rust * Algorithms * Basics C++ * Typescript * Bug fixing * Feature implementation * Codebase refactoring * Performance optimization In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters. As an expert you will be creating Reinforcement Learning Environments which test an AI model’s ability to solve complex software engineering problems using Model Context Protocol (MCP) tools. Tasks may involve fixing bugs, implementing features, refactoring code, or optimizing performance while requiring agents to discover and reason over information from real MCP servers. You will design reproducible environments, deterministic verification, and golden reference solutions that accurately measure both MCP tool use and software engineering ability. Required Skills and Qualifications: * Proficiency inC++, Python, JAVA, GoLang, Typescript, or Rust. * Deep understanding of algorithms, data structures, and performance tuning. * Demonstrated experience in debugging complex software issues and delivering maintainable solutions. * Strong background in feature development and codebase refactoring. * Proven ability to optimize software for performance and scalability. * Exceptional written and verbal communication skills, with a keen attention to detail. * Track record of success in collaborative, cross-functional teams, ideally in remote settings. Preferred Qualifications: * Previous experience working on large-scale, distributed codebases. * Familiarity with modern AI or machine learning systems is a plus, though not required. * Background in participating in rigorous code reviews and contributing to the development of software best practices. Process: 1. Apply to the role, filling out the screening questions 2. Complete AI Interview (approx. 30 minutes) 3. Technical Assessment (Tentative) 4. Hiring Manager review Compensation Structure Compensation is output-based; experts are paid per task that meets the project specifications. The time required to complete work may vary depending on the expert’s experience and workflow. Minimum submission requirements apply. Experts must submit a minimum of tasks per week. Start Timeline & Availability We typically fill roles within 48 hours and are looking for experts ready to jump in right away. If selected, we expect you to start your first tasks within 24–48 hours of completing onboarding.

Design and implement cloud infrastructure environments and develop validation tests to evaluate AI model proficiency and recovery strategies. | Senior-level backend programming expertise with strong experience in DevOps, cloud infrastructure, automation, and securing distributed systems. | Job Title: Senior Backend Engineer Role Type: Contractor (20 hrs per week) Location: Remote We are engaging Senior Backend Engineers to participate in an advanced project for a customer, focused on creating sophisticated Reinforcement Learning Environments for AI model training and evaluation. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters. As an expert, you will create Reinforcement Learning Environments that test an AI model’s ability to design, deploy, troubleshoot, secure, scale, and recover production-grade cloud infrastructure. You will develop realistic scenarios involving distributed systems, networking, IAM, queues, durable storage, observability, rolling deployments, and disaster recovery, then build reproducible environments, deterministic validation tests, golden reference solutions, and intentionally defective variants. Required Skills * C++ * Python * Rust * GoLang * JAVA * JavaScript * DevOps Scope of Work * Design, develop, and implement realistic cloud infrastructure environments to evaluate AI model proficiency in systems design, deployment, and troubleshooting. * Create detailed and reproducible scenarios involving distributed systems, networking, Identity and Access Management (IAM), message queues, persistent storage, observability, rolling deployments, and disaster recovery. * Develop deterministic validation tests and golden reference solutions to ensure the reliability and accuracy of reinforcement learning environments. * Produce intentionally defective variants and failure scenarios to rigorously test AI model responses and recovery strategies. * Document the architecture, edge cases, and operational flows for all developed environments, ensuring clarity and reproducibility for future use. * Collaborate with technical leads and project participants to iteratively refine environment specifications and acceptance criteria. * Apply DevOps and infrastructure automation practices to deliver scalable, secure, and maintainable solutions for cloud-based systems evaluation. Preferred Qualifications * Proven expertise with backend programming languages, such as C++, Python, Rust, GoLang, JAVA, or JavaScript. * Strong practical experience with DevOps, cloud infrastructure, CI/CD pipelines, and automation tools. * Demonstrated ability to architect, scale, and secure distributed systems in production-grade environments. * Deep understanding of networking, IAM, queues, durable storage, and disaster recovery concepts. Process: * Apply to the role, filling out the screening questions * Complete AI interview (aprox. 30 minutes), reviewed by recruiters) * Hiring Manager review Compensation Structure Compensation is output-based; experts are paid per task that meets the project specifications. The time required to complete work may vary depending on the expert’s experience and workflow. Minimum submission requirements apply. Experts must submit a minimum of tasks per week. Start Timeline & Availability We typically fill roles within 48 hours and are looking for experts ready to jump in right away. If selected, we expect you to start your first tasks within 24–48 hours of completing onboarding.

Drive analytics strategy for global performance marketing and translate data into actionable recommendations for senior leadership. | Extensive experience in performance marketing, digital advertising, advanced SQL and visualization tools, and ability to connect marketing activities to sales pipeline data. | Location: Brazil, Colombia, LATAM Work type: Office/Remote Technical Level: Leader Job Category: Software Development Project: Leading platform for electronic agreements Working hours within PST time zone. We're seeking a strategic, execution-oriented Performance Marketing Data Science Analyst to drive data-powered growth across our client's marketing channels. Collaborating with marketers and leaders in the Global Performance Marketing organization as well as cross-functional teams, you will optimize our performance marketing engine to acquire, engage, and retain customers through a seamless omni-channel experience. You will lead advanced analyses and hands-on experimentation to uncover, validate, and scale new opportunities for paid media and digital marketing. Positioned at the intersection of marketing strategy and analytics, you'll transform data into actionable insights that inform campaign design, resource allocation, and go-to-market decisions. In this high-impact, hands-on role, you will deliver regular performance reporting, design and analyze marketing experiments, and provide clear, compelling recommendations that drive business outcomes. This is an ideal opportunity for a business-minded analytics leader who thrives in cross-functional environments, operates as an individual contributor, and is passionate about accelerating the company growth through data-driven marketing. Our ideal candidate combines exceptional analytical skills, a strategic mindset with a bias for action, a passion for experimentation and continuous learning, and a proven ability to turn data into measurable marketing impact. Responsibilities: * Drive the analytics strategy and roadmap for Global Performance Marketing * Translate complex analyses into clear, data-backed recommendations for senior leadership, influencing strategy across Growth, Product, Marketing, Sales, and Customer Success * Identify growth opportunities and risks using ROI and incrementality techniques to guide resource allocation and prioritization * Deliver regular executive reporting on key metrics, highlighting successes, risks, and proactive solutions What you'll bring: * Extensive analytics experience with paid search marketing, digital advertising, performance marketing, and campaign/channel management * Advanced proficiency in SQL and expertise with visualization tools such as Tableau, Looker, or similar * Hands-on experience with SEM payback modeling and monitoring conversion metrics across paid channels * Deep understanding of Salesforce lead and opportunity data structures, and ability to connect marketing activities to sales pipeline * Proven ability to distill complex analytical findings into concise, actionable recommendations for senior audiences * Strong judgment and business acumen to prioritize effectively and make sound trade-off decisions * Familiarity with modern data tools such as Hex, dbt, or similar for collaborative analytics and data transformation * Excellent communication and presentation skills, with the ability to convey complex data insights to senior leadership Preferred qualifications: * Experience with incrementality measurement and communicating experiment results * Track record of partnering with Marketing leadership to influence strategy through data-driven insights We offer*: * Flexible working format - remote, office-based or flexible * A competitive salary and good compensation package * Personalized career growth * Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) * Active tech communities with regular knowledge sharing * Education reimbursement * Memorable anniversary presents * Corporate events and team buildings * Other location-specific benefits *not applicable for freelancers

Develop and troubleshoot full-stack software including UI and API layers, and document technical decisions to support AI model training. | At least one year of full-stack development experience with proficiency in frontend frameworks, backend stacks, debugging, and documentation. | Job Title: Full Stack Developer Job Type: Contractor Location: Remote Required Skills * Node.js * Typescript * React * Angular * GoLang * API Integrations * FastAPI * REST API * React Native * Shopify * Wordpress * Nest.js In this role, you'll apply your end-to-end development expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your development skills are what matter. As an expert, you will be creating Reinforcement Learning Environments which test an AI model's ability to solve full-stack software problems, spanning frontend, backend, and the connection between them. You will be tasked with creating a reproducible environment and a golden reference solution for the problem. Scope of Work * Contribute clear code samples, debugging approaches, and development insights across frontend and backend, using languages like JavaScript/TypeScript, Python3, Java, or Go. * Identify, troubleshoot, and resolve bugs that span both the UI and the underlying API or database layer. * Build small to medium features end-to-end, from the interface through to the data layer, following good coding practices. * Improve existing frontend and backend code to make it cleaner, more consistent, and easier to maintain. * Document your reasoning, approach, and code decisions to support AI training data quality. * Review peer-contributed code and technical submissions for correctness and clarity. Preferred Qualifications * 1+ years of hands-on experience building both frontend and backend applications. * Comfortable with at least one frontend framework (React, Vue, or Angular) and one backend stack (Node/Express, Python/Django/Flask, Java/Spring, or similar). * Solid understanding of how frontend and backend systems connect through APIs. * Ability to debug issues that cross the frontend/backend boundary. * Good documentation and communication skills to explain your technical decisions clearly. * Interest in or curiosity about AI and its technical challenges (previous AI experience not required).

Develop and maintain high-quality front-end interfaces using React and React Native while collaborating with designers. | Expert-level proficiency in React, React Native, HTML, CSS, strong UX/UI design skills, and experience with Shopify or similar e-commerce platforms. | Role Title: Senior Front-End Engineer Role Type: Contractor Location: Remote Required Skills * Front-End Engineering * UX/UI Design * React * React Native * HTML * CSS * Shopify Preferred Qualifications 1. Demonstrated mastery in front-end engineering with expert-level proficiency in React and React Native. 2. Strong experience in crafting accessible, responsive interfaces using HTML and CSS. 3. Proven knowledge of UX/UI design principles and experience collaborating closely with Designers. 4. Hands-on experience with Shopify or similar e-commerce platforms. 5. Excellent written and verbal communication skills, with a commitment to providing clear technical feedback. 6. Ability to deliver high-quality work independently and as part of a distributed, multidisciplinary project team. 7. Familiarity with contributing to complex technology projects or AI-driven initiatives is a plus. Process: 1. Apply to the role, filling out the screening questions 2. Complete AI interview (aprox. 30 minutes) 3. Hiring Manager review Compensation Structure Compensation is output-based; experts are paid per task that meets the project specifications. The time required to complete work may vary depending on the expert’s experience and workflow. Minimum submission requirements apply. Experts must submit a minimum of tasks per week. Start Timeline & Availability We typically fill roles within 48 hours and are looking for experts ready to jump in right away. If selected, we expect you to start your first tasks within 24–48 hours of completing onboarding.

Develop and debug reinforcement learning environments, document technical reasoning, and review peer code. | At least one year experience with Python, Java, Rust, or Go and solid understanding of algorithms, data structures, and software engineering. | Job Title: Software Developer Job Type: Contract Location: Remote Required Skills * Python * Rust * GoLang * Full-stack * JAVA * Node.js * Android Development * iOS Development As an expert, you will be creating Reinforcement Learning Environments which test an AI model's ability to solve practical software problems related to fixing code, building small features, and writing clean, working solutions. You will be tasked with creating a reproducible environment and a golden reference solution for the problem. No prior experience in AI is required, your development skills are what matter. Scope of Work * Contribute clear code samples, debugging approaches, and development insights in Python3, Java, Rust, Go, C++, or TypeScript. * Identify, troubleshoot, and resolve common software bugs and logic errors across different codebases. * Build small to medium features, following good coding practices and keeping solutions easy to understand. * Clean up and improve existing code to make it more readable and reliable. * Document your reasoning, approach, and code decisions to support AI training data quality. * Review peer-contributed code and technical submissions for correctness and clarity. Preferred Qualifications * 1+ years of hands-on experience in at least one of the following: Python3, Java, Rust, Go, C++, or TypeScript. * Solid understanding of core algorithms, data structures, and everyday software engineering practices. * Ability to debug real code, find the root cause of issues, and fix them cleanly. * Comfortable working across different codebases and picking up unfamiliar code. * Good documentation and communication skills to explain your technical decisions clearly. * Interest in or curiosity about AI and its technical challenges (previous AI experience not required).