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Job Description This is a remote position. Preferred Location : Mexico or South America (Brazil /Argentina / Costa Rica ) We’re seeking a Senior Front-End React Developer to join a dynamic product team building scalable, user-friendly web applications for a fast-growing startup. You’ll collaborate closely with designers, backend engineers, and product managers to deliver high-quality UI experiences that delight users. Responsibilities • Develop and maintain responsive, accessible, and performant React applications, • Build reusable components and front-end libraries using React, TypeScript, and modern state management tools (Redux, Context API, Zustand), • Integrate with RESTful and GraphQL APIs, • Optimize application performance and implement best practices for scalability, • Collaborate with cross-functional teams in an Agile environment, • Write unit and integration tests using Jest, Cypress, or React Testing Library, • Participate in code reviews and contribute to technical documentation Required Skills • 3–5 years of professional experience in front-end development, • Strong proficiency in React.js, JavaScript (ES6+), and TypeScript, • Experience with Next.js, Redux, or equivalent state management, • Solid understanding of HTML5, CSS3, and modern styling frameworks (Tailwind CSS, Styled Components), • Familiarity with Git, CI/CD pipelines, and modern build tools (Webpack, Vite), • Experience with GraphQL and/or REST APIs, • Strong testing skills with Jest, Cypress, or React Testing Library, • Fluent English communication and ability to work independently, • Prior experience working with US-based teams or startups is a plus Bonus Skills • Experience with accessibility standards (WCAG, ARIA), • Familiarity with Storybook or component-driven development, • Exposure to cloud platforms (AWS, Vercel, Netlify) What We Offer • Opportunity to work with a passionate, fast-moving startup team, • Potential for long-term engagement and growth

Job DescriptionPosition Summary United Medical Imaging Healthcare (UMIH) is seeking a mid-level Software Developer to join our Software Development & Integration team. In this role, you will design and develop web applications with an Angular front-end and ASP.Net Core (C#) API back-end (using an MS SQL database). You will also help integrate AI/ML models into our radiology business workflow to enhance diagnostic processes, while supporting and improving existing production applications. The ideal candidate has full-stack web development experience and is knowledgeable about healthcare data security (HIPAA and SOC 2 Type II compliance). This is a remote position with occasional on-site meetings, so candidates should reside within driving distance of our Los Angeles, CA headquarters (10436 Santa Monica Blvd). Detailed Job DescriptionKey Responsibilities * Develop Web Front-End: Design and implement responsive user interfaces using Angular (TypeScript), creating a sleek and intuitive UI for radiology workflow tools. * Build Back-End APIs: Develop and maintain robust back-end services and RESTful APIs using ASP.Net Core (C#) to power the web applications and integrate with other systems. * Database Development: Design and optimize database schemas, stored procedures, and queries on Microsoft SQL Server for efficient, high-volume data storage and retrieval. * AI Integration: Integrate machine learning/AI models into the radiology workflow applications, and manage these integrations (monitor, troubleshoot, and optimize the AI systems in production) Collaborate with stakeholders to seamlessly embed AI tools into clinical workflow and improve patient care. * Application Support: Monitor and support existing production applications, debugging issues and deploying updates or enhancements to ensure high availability and performance. * Security & Compliance: Implement strict security best practices (encryption, masking, access controls) to protect patient health information and ensure all software is HIPAA-compliant Follow SOC 2 Type II guidelines for data security and privacy throughout the development lifecycle. Required Skills & Qualifications * Experience: 3+ years of hands-on software development experience in full-stack web application development (mid-level). * Web Development: Proficiency with Angular (Angular 8+ and TypeScript) for front-end development and ASP.Net Core (C#) for back-end API development. Familiarity with building RESTful Web APIs and using frameworks like Entity Framework or ADO.Net. * Database Skills: Strong experience with MS SQL Server, including designing relational schemas and writing efficient SQL queries/stored procedures. * AI/ML Exposure: Experience integrating at least one AI or machine learning model into an application or workflow. (Experience with healthcare or medical imaging AI models is a big plus.) * Healthcare Compliance: Knowledge of healthcare data security and compliance standards – especially HIPAA regulations and SOC 2 Type II controls – and experience developing compliant systems is highly preferred. Familiarity with protecting PHI and working under regulatory guidelines is expected. * Problem-Solving: Strong debugging and troubleshooting skills to support production systems and resolve technical issues quickly. Ability to optimize performance across the stack. * Communication & Teamwork: Excellent communication skills and ability to work collaboratively in a cross-functional team. Comfortable translating technical concepts to non-technical stakeholders and working with radiologists/clinical staff when integrating new tools. * Education: Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience). Work Arrangement This role is remote-friendly with flexible hours. Occasional travel to the Los Angeles headquarters will be required for important meetings, planning sessions, or deployments. Therefore, candidates must reside within driving distance of Los Angeles, CA (Zip Code 90025) to attend on-site meetings as needed. UMIH offers a competitive salary, benefits, and a chance to work on cutting-edge healthcare technology in a collaborative environment. Join us in building innovative web solutions and integrating AI into healthcare workflows to improve patient outcomes and radiology operations. This position offers the opportunity to grow your skills while making a meaningful impact in the medical imaging field. We will only considering people residing in Los Angeles, California.

Job Description StubHub is on a mission to redefine the live event experience on a global scale. Whether someone is looking to attend their first event or their hundredth, we're here to delight them all the way from the moment they start looking for a ticket until they step through the gate. The same goes for our sellers. From fans selling a single ticket to the promoters of a worldwide stadium tour, we want StubHub to be the safest, most convenient way to offer a ticket to the millions of fans who browse our platform around the world. StubHub's Product Security Engineering Team is seeking a Senior Engineer to enhance our security posture within the end user and services product domain. The perfect candidate will possess experience in CI/CD pipeline security, product and application architecture reviews, contextualized vulnerability management processes, and automation. Location: Hybrid (3 days in office/2 days remote) – New York, NY or Santa Monica, CA About the team: StubHub's Product Security Engineering Team plays a critical role in securing the platforms that power the world's largest ticket marketplace. This team works hands-on with cutting-edge tools and cloud-native technologies to embed security into every layer of the software development lifecycle—from architecture to automation. If you're passionate about offensive security, CI/CD hardening, and driving real impact across modern product teams, this is your opportunity to lead and innovate at global scale. What You'll Do: • Conduct security assessments, code reviews, and penetration tests on web applications, APIs, and mobile apps to identify vulnerabilities and flaws., • Collaborate with development teams to embed security into CI/CD pipelines, including the implementation of automated code scanning tools., • Develop and maintain secure coding guidelines and conduct security awareness training for developers., • Respond to security incidents, perform root cause analyses, and recommend effective remediations., • Stay current on emerging security threats, vulnerabilities, and mitigation strategies; proactively share insights across teams., • Help develop and enforce application security policies, standards, and procedures aligned with industry regulations and best practices., • Conduct architectural reviews to ensure the security of new technologies and controls., • Build and maintain robust product vulnerability management processes and procedures., • Write and maintain production-grade APIs to automate security processes and streamline infrastructure and developer workflows., • Demonstrated expert-level understanding of offensive web application security testing and defense-in-depth remediation strategies., • Expert-level skills in vulnerability assessments and code reviews., • Extensive experience with automated security testing tools (e.g., Burp Suite, OWASP ZAP, Snyk)., • Strong communication skills, with the ability to convey complex security concepts to both technical and non-technical audiences., • Hands-on experience in applied cryptography and key management., • Proven ability to implement SAST, DAST, and SBOM tooling within development workflows., • Experience in performing structured threat modeling (e.g., STRIDE, PASTA)., • Intermediate proficiency in at least one scripting language (e.g., Python, Ruby)., • Industry-recognized security certifications (e.g., OSCP, CEH, CISSP, GWAPT)., • Intermediate-level experience with cloud security principles and technologies in AWS and Azure., • Understanding of Kubernetes security fundamentals, including the use of admission controllers, network policies, role-based access control (RBAC), and ingress architecture design., • Accelerated Growth Environment: Immerse yourself in an environment designed for swift skill and knowledge enhancement, where you have the autonomy to lead experiments and tests on a massive scale., • Top Tier Compensation Package: Enjoy a rewarding compensation package that includes enticing stock incentives, aligning with our commitment to recognizing and valuing your contributions., • Flexible Time Off: Embrace a healthy work-life balance with unlimited Flex Time Off, providing you the flexibility to manage your schedule and recharge as needed.

Contract Junior Front-End Web Developer. Web Developer to assist with our current workload of client-facing and internal front-end development projects. Strong understanding of Front-End technologies, such as JavaScript, HTML5, CSS3, and Bootstrap 4.