Role Description We're looking for a Senior Full-Stack Engineer to join an innovative AI-driven platform focused on transforming how athletes and creators generate social media content. You'll work in a high-impact, early-stage environment, collaborating directly with a Fractional CTO, Product Manager, and CEO. The platform leverages LLMs, multi-agent architectures, and identity-based personalization to deliver scalable, high-quality content across multiple social platforms. This role requires someone comfortable navigating complexity, extending existing systems, and contributing to a rapidly evolving product. - Build and evolve full-stack features using TypeScript, React, and Next.js - Work on a multi-tenant SaaS architecture with AI-driven capabilities - Integrate and orchestrate LLM-based and agent-based systems - Develop and maintain integrations with social media APIs (X, LinkedIn, Instagram, TikTok) - Collaborate closely with product and leadership on technical decisions - Contribute to scalable frontend architectures (App Router, Server Components, streaming) - Implement authentication and authorization flows (OAuth / SSO) - Ensure code quality through testing and solid engineering practices - Work within a monorepo environment and extend existing patterns Qualifications - 7+ years of experience as a Full-Stack Engineer - Strong expertise in TypeScript and strictly typed codebases - Proven experience with React and Next.js (modern patterns) - Hands-on experience building cloud-based applications (Azure preferred) - Solid understanding of OAuth / SSO authentication flows - Experience working in fast-paced, ambiguous environments - Strong communication skills in English and proactive mindset - Experience writing tests (Vitest or similar) Requirements - Experience with Convex or similar real-time backends - Exposure to AI/LLM integrations, prompt engineering, or agent-based systems - Experience with multi-tenant SaaS architectures - Familiarity with monorepos (Turborepo, pnpm workspaces) - Experience in audio/media processing (WebAudio, transcription pipelines) - Background working with social media platforms APIs - Knowledge of analytics and event tracking systems - Interest or experience in content creation or creative domains Benefits - Contractor agreement with payment in USD - 100% remote work - Argentina's public holidays - English classes - Referral program - Access to learning platforms

Role Description We are building a next-generation white-label platform that enables partners to seamlessly integrate and distribute ExpressVPN’s services within their own ecosystems. As a Senior / Staff Full-Stack Engineer, you will play a key role in designing and delivering a scalable, secure, and intuitive developer and tenant experience. You will own end-to-end development of critical platform features—from backend services to frontend interfaces—powering a Stripe-like management console for our B2B partners. - Design, build, and maintain the Developer / Tenant Console — a Stripe-style management interface for B2B partners - Develop and manage authentication endpoint configuration flows, enabling partners to register and maintain their own OIDC / OAuth2 identity providers - Build subscription and entitlement services, including endpoints consumed by SDKs for real-time user access and feature control - Create statistics and KPI dashboards, providing tenants with visibility into usage metrics, active connections, MAU, and platform health - Implement billing and usage visibility, including usage-based billing summaries, invoice history, and per-tenant consumption breakdowns - Own full-stack delivery of features, from API design and backend services (Node.js) to frontend implementation (Next.js / React) - Collaborate closely with platform, SDK, and infrastructure teams to ensure seamless integration and scalability - Drive best practices in system design, performance, security, and developer experience - (Staff level) Provide technical leadership, mentor engineers, and influence architectural decisions across the platform Qualifications - Strong experience with Node.js and Next.js / React - Proven ability to own full-stack features end-to-end (API design, integration, frontend architecture, state management) - Experience building B2B platforms, developer portals, or admin/tenant dashboards - Solid understanding of authentication and authorization protocols (OIDC, OAuth2) - Experience designing scalable APIs and backend services - Familiarity with data visualization libraries (e.g., Recharts, Chart.js) for dashboards and reporting - Conduct code reviews and ensure high code quality through automated testing - Contribute to engineering best practices (testing, code quality, documentation) Requirements - Experience with multi-tenant architectures and SaaS platforms - Exposure to usage-based billing systems or subscription platforms - Experience working on security-focused products or privacy-centric applications Benefits - Fostering an environment that empowers decision-making at all levels - Culture rooted in the inverted pyramid approach, where engineers have the authority to make impactful decisions - Respectful treatment of every team member and promotion of open and constructive feedback - Encouragement of learning through experimentation and a safe space for learning from experiences - Managers dedicated to facilitating career growth and supporting talented engineers

Role Description At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Full-Stack Engineer (Java) to join our UniQue team. What will you be doing in this role? - Design and development of software components and building blocks using suitable back-end components and frameworks (Java Spring, JPA). - Design of application APIs using suitable frameworks (REST, Swagger). - Design and implementation of application integration with corporate IAM services for authentication and authorization purposes. - Delivery through a CI/CD pipeline. - Implementation of code according to a technical analysis. Qualifications - Master’s degree in IT with minimum 13 years of relevant experience, including proven and recent coding experience in Java web application development (Java Spring, Hibernate). - At least 6 years of experience with Java web application development, including 3 years with Java Spring and REST API development. - Minimum 3 years of experience in developing complex information systems. - Minimum 3 years of frontend development using Angular or Kendo UI. - Good knowledge of UI/UX for web applications, including responsive design. - At least 2 years of experience with Agile software development practices (refactoring, test-driven development, user story modeling). - Very good knowledge of web application design, in particular Java back-end components and frameworks (Spring Framework, Spring Data, Spring for Web Services, JPA, Spring Security). - Experience with JEE applications. - Experience with CI/CD pipelines, containerization (Docker), Git, Maven, Jenkins. - Familiarity with Atlassian tools (Bitbucket, Jira, Confluence) and development IDEs (VS Code or JetBrains IDEs). - Good knowledge of JUnit. - Good knowledge of Enterprise Architecture, Java application servers (Oracle WebLogic), relational DBMS (Oracle DB), SQL, and UML modeling methods. - Knowledge of interoperability technologies (web services, REST APIs) and security concepts, including OAuth. - Knowledge of SCRUM methodology is an advantage. - Fluent in English (at least B2). Benefits - At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. - Take a look at our Diversity, Equality & Inclusion Policy for more information.

• Actuar como contraparte técnica interna frente a la agencia externa responsable del desarrollo de software. • Liderar la evolución técnica de la plataforma de datos de Toroto. • Supervisar y acompañar el trabajo de un desarrollador backend junior interno. • Definir lineamientos técnicos para la arquitectura y evolución de la plataforma. • Coordinar con los equipos de producto, modelos geoespaciales (agua y carbono) y desarrollo tecnológico. • Asegurar la correcta implementación de integraciones entre sistemas, APIs y pipelines de datos. • Garantizar la calidad y consistencia de la infraestructura de datos ambientales y geoespaciales. • Realizar desarrollo hands-on (backend, frontend y mobile según necesidad) para el mantenimiento, evolución y escalabilidad de la plataforma de software, especialmente una vez que concluya el contrato con la agencia externa.