Freelance Mathematics Expert - Quality Assurance (AI Trainer)

Applied AI Engineer Location: NYC Employment Type: Full-time On-site: 5 days/week in-office About the Role Our client, an AI-first company backed by top-tier investors, is looking for an Applied AI Engineer to join their team. They are building a platform that applies AI to every step of bringing new therapies to market, ensuring patients get life-changing treatments as quickly and affordably as possible. This role is a high-impact opportunity to work on real-world production use cases of LLMs and other ML techniques to solve complex business problems. This is a demanding role with a high level of autonomy. The client is looking for someone who can "act like an owner" and take end-to-end responsibility for projects, from initial definition and design through to launch and success. What You'll Do Spearhead AI projects across the product, including classifications, data extraction, content generation, and building AI-powered bots. Drive zero-to-one product development, from concept to production, in collaboration with go-to-market and operations teams. Stay on top of emerging AI methods and make decisions about which models and techniques to use. Establish research strategies and evaluation protocols for various AI methods. Prototype and productionize AI functionality and agents, refining them with real-world feedback. Participate in client engagements, working directly with customers to understand their needs and deliver innovative solutions. Develop engineering processes and tools to support faster AI product development and scaling. Work closely with the CEO and team to make business decisions that balance growth and long-term profitability. Requirements Qualifications 0-15 years of experience as an AI Engineer, ML Engineer, or ML Research Engineer at a high-quality company or early-stage startup. The client is looking for someone low-ego, hungry to learn, and excited about intense, impactful work. This is an in-person role, with an expectation of being in the Soho, NYC office 5 days a week. Tech Stack Python React TypeScript PostgreSQL Kubernetes Benefits Salary: $150k - $225k Equity: Competitive Visa sponsorship is available. Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search. Commitment to Equality and Accessibility: At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city. MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.

Position Title: Echo Vascular Technologist Location: Kingman, Lake Havasu, and Bullhead City, Arizona Employment Type: Full-Time Schedule: Mon - Fri (0800-1700) Work Environment: Outpatient Primary Care Clinical Settings Travel Requirement: Yes – Travel between designated clinic locations Compensation: $40 – $50 per hour Comprehensive Benefits Package Medical, dental, and vision insurance 401(k) retirement plan Paid holidays and PTO Why Join Our Team? We are committed to helping communities live healthier, longer lives through personalized, prevention-focused care. As a member of our team, you will benefit from a collaborative work culture, professional mentorship opportunities, and leadership that values your career growth. Team members enjoy: A supportive, patient-first environment Regular staff appreciation events Opportunities to make a meaningful impact in patients’ lives About the Role The Echo Vascular Technologist performs diagnostic echocardiograms and vascular ultrasound examinations to support the diagnosis and treatment of cardiovascular and vascular conditions. This role combines advanced imaging skills with compassionate patient care to deliver exceptional diagnostic services across multiple clinic locations. Key Responsibilities Perform echocardiography and vascular ultrasound studies according to clinical protocols Prepare patients for exams, explain procedures, and ensure comfort and safety Operate, maintain, and troubleshoot ultrasound equipment in line with safety and performance standards Analyze images and document findings with accuracy and clarity Record procedures and results promptly in the EMR system Maintain high image quality through adherence to quality control protocols Stay current with advancements in ultrasound practices and technologies Follow all safety and infection control standards Travel between clinic locations in Kingman, Lake Havasu, and Bullhead City as scheduled Qualifications Minimum 1 year of experience as a Sonographer At least 10 months of clinical experience performing cardiac and/or vascular ultrasounds Proficient in echocardiography and vascular ultrasound imaging and interpretation State licensure or certification as required Strong knowledge of cardiac and vascular anatomy, physiology, and pathology Skilled in the operation and troubleshooting of ultrasound equipment Excellent communication, time management, and interpersonal skills Willingness to travel to multiple clinic locations Ideal Candidate You are passionate about cardiovascular and vascular health, committed to delivering exceptional patient care, and thrive in a collaborative team setting. You are detail-oriented, technically confident, and embrace continuous learning while serving communities that rely on your expertise. How to Apply If you meet the qualifications and are ready to bring your skills to a patient-focused diagnostic environment, we invite you to apply. Please submit your most current resume or CV for confidential consideration. Cover letters and professional references are welcome but not required. Join us in bringing life-saving diagnostic care to Northern Arizona communities. Requirements 1 year experience as a Sonographer 10 months in clinical cardiac/vascular setting Proficient in ECHO and vascular imaging State licensure or certification Willing to travel between Bullhead, Kingman and Havasu

Helping you deliver high-quality, in-home patient care. About CareSend: CareSend is a technology platform that makes lab draws more accessible, efficient, and affordable. We bring together the patient, provider, and laboratory to support seamless mobile phlebotomy care. Position: Mobile Phlebotomist Location: Varies by patient location Schedule: Flexible PRN— set your availability; no minimum or maximum hours required Pay: $50.00 base rate, plus additional mileage compensation How It Works: Set your availability, and we’ll match you with local patient appointments Accept only the jobs that work for you Get paid fast through our app! Ready to Get Started? Here’s what to expect: ✔️ Review the job requirements and submit your application ✔️ Our team will reach out if you're a good fit ✔️ Once approved, you’re ready to start working right away! Join us in delivering high-quality, in-home patient care—one visit at a time. Requirements What You’ll Need: ✔️ National phlebotomy certification ✔️ Minimum 6 months of relevant experience ✔️ Reliable transportation with a clean driving record ✔️ Fluent in English ✔️ A smartphone or tablet with internet access

Position Title: Echo Vascular Technologist Location: Sierra Vista, Arizona Employment Type: Full-Time Schedule: Mon - Fri (0800-1700) Work Environment: Outpatient Primary Care Clinical Settings Compensation: $40 – $50 per hour Comprehensive Benefits Package Medical, dental, and vision insurance 401(k) retirement plan Paid holidays and PTO Why Join Our Team? We are committed to helping communities live healthier, longer lives through personalized, prevention-focused care. As a member of our team, you will benefit from a collaborative work culture, professional mentorship opportunities, and leadership that values your career growth. Team members enjoy: A supportive, patient-first environment Regular staff appreciation events Opportunities to make a meaningful impact in patients’ lives About the Role The Echo Vascular Technologist performs diagnostic echocardiograms and vascular ultrasound examinations to support the diagnosis and treatment of cardiovascular and vascular conditions. This role combines advanced imaging skills with compassionate patient care to deliver exceptional diagnostic services across multiple clinic locations. Key Responsibilities Perform echocardiography and vascular ultrasound studies according to clinical protocols Prepare patients for exams, explain procedures, and ensure comfort and safety Operate, maintain, and troubleshoot ultrasound equipment in line with safety and performance standards Analyze images and document findings with accuracy and clarity Record procedures and results promptly in the EMR system Maintain high image quality through adherence to quality control protocols Stay current with advancements in ultrasound practices and technologies Follow all safety and infection control standards Qualifications Minimum 1 year of experience as a Sonographer At least 10 months of clinical experience performing cardiac and/or vascular ultrasounds Proficient in echocardiography and vascular ultrasound imaging and interpretation State licensure or certification as required Strong knowledge of cardiac and vascular anatomy, physiology, and pathology Skilled in the operation and troubleshooting of ultrasound equipment Excellent communication, time management, and interpersonal skills Ideal Candidate You are passionate about cardiovascular and vascular health, committed to delivering exceptional patient care, and thrive in a collaborative team setting. You are detail-oriented, technically confident, and embrace continuous learning while serving communities that rely on your expertise. How to Apply If you meet the qualifications and are ready to bring your skills to a patient-focused diagnostic environment, we invite you to apply. Please submit your most current resume or CV for confidential consideration. Cover letters and professional references are welcome but not required. Join us in bringing life-saving diagnostic care to Northern Arizona communities. Requirements 1 year experience as a Sonographer 10 months in clinical cardiac/vascular setting Proficient in ECHO and vascular imaging State licensure or certification

Pay: $80,000.00 - $90,000.00 per year Job description: Retail District Manager – New York Job Type: Full-time Overview Join one of the fastest-growing telecommunications companies in the country! We’re currently hiring Retail District Managers to lead multiple retail stores within a defined market. This is an exciting opportunity for a strategic and hands-on leader to drive sales performance, elevate the customer experience, and develop high-performing teams across several retail locations. This role offers a competitive base salary ($80,000 – $90,000) plus commission potential ($36,000 – $50,000), with a clear path to career advancement through industry-leading training and development programs. Who We Are We are a rapidly expanding branded partner in the telecommunications industry with locations across 15+ states—and continued growth on the horizon. Our teams connect residential and business customers to essential services including high-speed internet, mobile, video, and voice by delivering exceptional in-store experiences across our retail network. Who We’re Looking For We’re seeking experienced multi-unit retail leaders—ideally with a background in wireless, cable, or consumer electronics—who are passionate about developing teams, driving operational excellence, and exceeding sales goals. As a Retail District Manager, you’ll act as the primary liaison between corporate leadership and the field—ensuring all store locations are operationally ready, performance-driven, and aligned with company goals and brand standards. Key Responsibilities Sales Leadership & Strategy · Oversee the sales and operational performance of multiple retail locations within an assigned district. · Develop and implement strategies to grow revenue, increase market share, and improve customer satisfaction. · Analyze KPIs and performance reports to identify opportunities, close performance gaps, and drive consistent results. Team Development & Coaching · Recruit, train, and develop Store Managers and sales teams to build a high-performing, customer-centric culture. · Provide ongoing coaching, feedback, and professional development to improve team performance and career growth. · Partner with internal teams to deliver effective sales enablement, product training, and leadership development programs. Operational Excellence · Ensure all locations follow company policies and procedures including cash handling, inventory management, and merchandising standards. · Conduct regular market and store visits to monitor operational readiness, customer experience, and brand compliance. · Serve as the main point of contact between field teams and corporate departments to ensure alignment on business priorities and initiatives. Customer Experience · Promote a customer-first mindset and ensure high Net Promoter Scores (NPS) across all stores. · Champion consistent customer experience by leading with best practices and ensuring issue resolution processes are followed. Qualifications · Bachelor’s degree in business or related field (or equivalent professional experience). · 5+ years of experience in multi-unit retail management, preferably in wireless, cable, or consumer electronics. · Proven success in driving sales growth and leading high-performing teams. · Strong communication, analytical, and problem-solving skills. · Proficient in Microsoft Word, Excel, PowerPoint, and reporting/analytics tools. · Ability to work a flexible schedule including weekends and holidays. · Willingness to travel throughout the market; valid driver’s license required if operating company or fleet vehicles. Perks & Benefits · Competitive base salary + uncapped commission · Medical, Dental, Vision, 401(k) · Paid training and onboarding · Vacation, Sick, and Personal Time Off · Employee growth & rewards programs, including: o Milestone Recognition Program o Annual Winners Circle all-expenses-paid trip for top performers Ask your interviewer for more details about these exclusive employee-focused programs! Job Type: Full-time Benefits: 401(k) Dental insurance Health insurance Paid time off Vision insurance Work Location: In person

Pay: $80,000.00 - $90,000.00 per year Job description: Retail District Manager – New York Job Type: Full-time Overview Join one of the fastest-growing telecommunications companies in the country! We’re currently hiring Retail District Managers to lead multiple retail stores within a defined market. This is an exciting opportunity for a strategic and hands-on leader to drive sales performance, elevate the customer experience, and develop high-performing teams across several retail locations. This role offers a competitive base salary ($80,000 – $90,000) plus commission potential ($36,000 – $50,000), with a clear path to career advancement through industry-leading training and development programs. Who We Are We are a rapidly expanding branded partner in the telecommunications industry with locations across 15+ states—and continued growth on the horizon. Our teams connect residential and business customers to essential services including high-speed internet, mobile, video, and voice by delivering exceptional in-store experiences across our retail network. Who We’re Looking For We’re seeking experienced multi-unit retail leaders—ideally with a background in wireless, cable, or consumer electronics—who are passionate about developing teams, driving operational excellence, and exceeding sales goals. As a Retail District Manager, you’ll act as the primary liaison between corporate leadership and the field—ensuring all store locations are operationally ready, performance-driven, and aligned with company goals and brand standards. Key Responsibilities Sales Leadership & Strategy · Oversee the sales and operational performance of multiple retail locations within an assigned district. · Develop and implement strategies to grow revenue, increase market share, and improve customer satisfaction. · Analyze KPIs and performance reports to identify opportunities, close performance gaps, and drive consistent results. Team Development & Coaching · Recruit, train, and develop Store Managers and sales teams to build a high-performing, customer-centric culture. · Provide ongoing coaching, feedback, and professional development to improve team performance and career growth. · Partner with internal teams to deliver effective sales enablement, product training, and leadership development programs. Operational Excellence · Ensure all locations follow company policies and procedures including cash handling, inventory management, and merchandising standards. · Conduct regular market and store visits to monitor operational readiness, customer experience, and brand compliance. · Serve as the main point of contact between field teams and corporate departments to ensure alignment on business priorities and initiatives. Customer Experience · Promote a customer-first mindset and ensure high Net Promoter Scores (NPS) across all stores. · Champion consistent customer experience by leading with best practices and ensuring issue resolution processes are followed. Qualifications · Bachelor’s degree in business or related field (or equivalent professional experience). · 5+ years of experience in multi-unit retail management, preferably in wireless, cable, or consumer electronics. · Proven success in driving sales growth and leading high-performing teams. · Strong communication, analytical, and problem-solving skills. · Proficient in Microsoft Word, Excel, PowerPoint, and reporting/analytics tools. · Ability to work a flexible schedule including weekends and holidays. · Willingness to travel throughout the market; valid driver’s license required if operating company or fleet vehicles. Perks & Benefits · Competitive base salary + uncapped commission · Medical, Dental, Vision, 401(k) · Paid training and onboarding · Vacation, Sick, and Personal Time Off · Employee growth & rewards programs, including: o Milestone Recognition Program o Annual Winners Circle all-expenses-paid trip for top performers Ask your interviewer for more details about these exclusive employee-focused programs! Job Type: Full-time Benefits: 401(k) Dental insurance Health insurance Paid time off Vision insurance Work Location: In person