29,063+ Senior Fullstack Developer Reactjava Jobs in Buenos Aires, Argentina — Local Employers Hiring June 2026

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Mobile Engineer Build & Own Core Apps

A technology company in Argentina is seeking a mobile app developer to join their team. The role involves collaborating with product and design teams to enhance app features, implementing key functionalities, and maintaining code quality through reviews. Candidates should have expertise in mobile SDKs and a prob ...

Full Stack Engineer for Auction Platform (Python/Next.js)

Minutentag in Argentina seeks a skilled developer responsible for enhancing our digital auction and marketplace platform. This role requires proficiency in both frontend and backend technologies to build high-performance applications. You'll collaborate with product, design, and engineering teams while ...

Marketo Migration Specialist: Pardot to Marketo Expert

FPT Latin America, a dynamic technology firm in Buenos Aires, is seeking a Marketo Developer to assist in migrating from Salesforce Pardot to Adobe Marketo. This hands-on role involves campaign migration, data integrity management, and maintaining platform integrations. The ideal candidate will have pr ...

LLM Powered Full Stack Engineer (React + Python)

Agileengine is seeking a Full Stack Developer in Bahía Blanca, Argentina, to build and integrate LLM-powered features within the product. You will develop React components, extend Python backend services, and work closely with various teams during overlapping EST hours. Ideal candidates will have comme ...

Remote Full Stack Engineer — Build Modern Web Apps (Flexible Hours)

Hey Support in Argentina is seeking a Full Stack Developer to design, develop, and maintain web applications. You will collaborate with a dynamic team to implement user-friendly interfaces and integrate third-party services. The ideal candidate has experience with JavaScript frameworks and server-side ...

LLM Powered Full Stack Engineer (React + Python)

Agileengine is seeking a Full Stack Developer in Buenos Aires to build and integrate LLM-powered features across frontend and backend systems. Responsibilities include developing React components, extending Python backend services, and working directly with LLM APIs to deliver AI-driven functionality. ...

Senior .NET Tech Lead: Cloud, CI/CD & Global Impact

EPAM Systems is seeking a seasoned software developer in Buenos Aires to lead teams and ensure the delivery of high-quality projects. You will provide technical guidance, implement improvements, and own deliverables throughout the project lifecycle. Candidates should have over 8 years of .NET experienc ...

Remote Full Stack Engineer for Social Impact (Python/Django)

Silver.dev is looking for an experienced full-stack developer to join their remote team in Argentina. Candidates should have over 8 years of experience, with strong skills in Python and SQL. The role involves developing product features, enhancing code quality, and collaborating effectively with the te ...

Remote Full Stack Engineer — Build Modern Web Apps (Flexible Hours)

Hey Support in Argentina is seeking a Full Stack Developer to design, develop, and maintain web applications. You will collaborate with a dynamic team to implement user-friendly interfaces and integrate third-party services. The ideal candidate has experience with JavaScript frameworks and server-side ...

Full Stack Engineer: Microservices & Fintech APIs

NIR-YU, a digital solutions provider in Argentina, is seeking an experienced developer proficient in Java (Spring Boot) or Node.js. The ideal candidate will have strong skills in building microservices and RESTful APIs, as well as experience with databases like PostgreSQL and MySQL. This position also ...

Senior Backend Engineer — AI Powered Event Platform

Gomry Payments in Mar del Plata, Argentina is seeking a backend developer to enhance various user-facing features and optimize database performance. Join a small team working with a zero-bugs policy and a shared commitment to quality. You’ll also improve observability and monitoring systems to respond ...

Salesforce & Revenue Ops Engineer

OpsArmy Careers is seeking a Salesforce Developer in Buenos Aires, Argentina, to help with the migration from HubSpot to Salesforce. This role focuses on building and maintaining workflows, reporting, and integrations critical for revenue operations. Ideal candidates should possess strong Salesforce fundamentals ...

Senior Frontend Engineer — VTEX IO & FastStore

Valtech is seeking a Frontend Developer in Olavarría, Argentina, with experience in VTEX IO and frontend technologies. Ideal candidates will have strong development skills, particularly in VTEX and responsive design, and be familiar with tools like npm and Webpack. The position requires expertise in va ...

Backend Engineer for AI Powered Event Platform

Gomry Payments is seeking a backend developer to enhance their user-facing features and improve service performance. The role emphasizes architectural changes, caching solutions, and monitoring improvements. You'll work in a dynamic environment that values trust and autonomy, allowing small teams to fo ...

Senior Full Stack Engineer: Microservices & Fintech APIs

NIR-YU, a digital solutions provider in Argentina, is seeking a developer with expertise in Java (Spring Boot) or Node.js. Candidates should have experience in building microservices, RESTful APIs, and integrating third-party APIs. Essential skills include knowledge of databases like PostgreSQL, MySQL, ...

Remote Backend Engineer | Flexible Hours

Avature is seeking a backend software developer based in Argentina to join their team. The role involves developing complex products, conducting technical analysis, and improving code quality. Candidates should have strong analytical skills and be fluent in PHP, Python, or Java. The company offers a fl ...

Senior Ruby on Rails Engineer – Microservices & Mentorship

En ultima milla, buscamos un Ruby on Rails Developer en Buenos Aires para unirse a nuestro equipo innovador. Colaborarás con otros desarrolladores y el equipo de producto para crear servicios que impulsen nuestros productos de software. Requiere mínimo 4 años de experiencia en Ruby y JavaScript, así co ...

Lead Mobile Engineer, Crypto Wallets & DeFi

Framework Ventures in Argentina is seeking a skilled mobile developer to lead a dynamic team in building cutting-edge mobile applications. You will work on integrating crypto wallets and defining patterns for performance and security. The ideal candidate will have extensive experience in React and Reac ...

Lead Mobile Engineer, Crypto Wallets & DeFi

Framework Ventures in Argentina is seeking a skilled mobile developer to lead a dynamic team in building cutting-edge mobile applications. You will work on integrating crypto wallets and defining patterns for performance and security. The ideal candidate will have extensive experience in React and Reac ...

Ejecutivo de Growth Marketing y Negocios (Remoto)

SoftMiners, ubicada en Olavarría, Argentina, busca un Business Developer para unirse a su equipo. Este rol implica gestionar relaciones con clientes y diseñar campañas de marketing efectivas. El candidato ideal tiene experiencia en ventas B2B y habilidades en marketing digital. Se ofrece un horario de ...

Senior SDUI & Backend API Engineer

TurnKey Tech Staffing is seeking an experienced API Developer to lead design and implementation of RESTful APIs supporting Server-Driven UI for Flutter clients. The role requires 7+ years in building production microservices and strong hands-on development experience in TypeScript. Responsibilities inc ...

Remote Android Kotlin Engineer Build High Performance Apps

Rehire is seeking an experienced Android Mobile Developer for a fully remote position. Candidates should possess strong expertise in Kotlin and a solid understanding of Android development. The role involves developing and maintaining high-performance Android applications, collaborating with internatio ...

Remote Senior Backend Engineer — Scale SaaS & Mentor

Velozient in Argentina is seeking a full-time remote Agentic Developer with over 8 years of experience in .NET, C#, Python, or Node.js. The role focuses on building and enhancing core product capabilities for a mission-critical SaaS platform. Responsibilities include designing scalable systems, making ...

Remote Senior Backend Engineer — Scale SaaS & Mentor

Velozient in Argentina is seeking a full-time remote Agentic Developer with over 8 years of experience in .NET, C#, Python, or Node.js. The role focuses on building and enhancing core product capabilities for a mission-critical SaaS platform. Responsibilities include designing scalable systems, making ...

Senior Backend Engineer – Remote, SaaS/AI Platform

Velozient in Argentina is seeking a full-time remote Agentic Developer with over 8 years of experience in .NET, C#, Python, or Node.js. The successful candidate will contribute to a SaaS platform, focusing on designing scalable systems and mentoring engineers. This role requires excellent English commu ...

Senior Backend Engineer Remote Architecting Scalable SaaS

Velozient in Argentina is seeking a full-time remote Agentic Developer with over 8 years of experience in .NET, C#, Python, or Node.js. The role involves contributing to a mission-critical SaaS platform, focusing on system design and enhancing core product capabilities. Responsibilities include designi ...

Senior Backend Engineer Remote SaaS/AI Platform

Velozient in Argentina is seeking a full-time remote Agentic Developer. Applicants should have over 8 years of experience in .NET, C#, Python, or Node.js. The role involves designing scalable systems and contributing to a mission-critical SaaS platform. This position includes responsibilities like ment ...

Remote Android Kotlin Engineer Build High Performance Apps

Rehire is seeking an experienced Android Mobile Developer for a fully remote position. The successful candidate will be responsible for developing and maintaining high-performance Android applications while collaborating with international teams to ensure efficient production releases. The role require ...

AI Research Engineer Large Scale LLM Systems and Innovation

Framework Ventures is seeking an innovative AI Model Developer to enhance architectures for cutting-edge models. You will lead initiatives to drive efficiency and new capabilities, requiring expertise in LLM architectures and pre-training optimization. The ideal candidate will hold a degree in Computer ...

Senior .NET Full Stack Engineer: Modernize Monolith & Azure

Solvd is looking for an experienced .NET Developer to work on existing applications and modernize backend logic related to insurance policy configuration. The role involves setup, integration, and troubleshooting of applications in a cloud environment (Azure). The ideal candidate will have 5+ years of ...

Senior Backend Engineer — Node/Python, AWS & Microservices

Silver.dev, a forward-thinking tech company in Argentina, is seeking a Back-end Developer to join their team. This role focuses on collaboration with engineers to enhance system consistency and user experience. Candidates should have over 3 years of experience with Node.js and Python, alongside familia ...

.NET Microservices Engineer | REST APIs, Azure DevOps, SQL

Avalith, located in Buenos Aires, is seeking a .Net Developer to join our fast-growing team. You will work collaboratively with peers and clients to create exceptional products. Key responsibilities include designing applications using the .Net ecosystem and developing RESTful APIs. The ideal candidate ...

Remote Inventory Software Engineer – Carrier Grade Telecom

Ciena is seeking a Software Developer to join their Professional Services Inventory team. This role involves designing, developing, and unit testing software for carrier grade applications. The ideal candidate will have 2-15 years of experience with expertise in Java, TypeScript, and database technolog ...

Senior Backend Engineer Remote Architecting Scalable SaaS

Velozient in Argentina is seeking a full-time remote Agentic Developer with over 8 years of experience in .NET, C#, Python, or Node.js. The role involves contributing to a mission-critical SaaS platform, focusing on system design and enhancing core product capabilities. Responsibilities include designi ...

Senior Backend Engineer Remote, SaaS/AI & Mentorship

Velozient in Argentina is seeking a full-time remote Agentic Developer to enhance their mission-critical SaaS platform. Candidates should have over 8 years of experience with technologies such as .NET, C#, Python, and Node.js. This role involves designing scalable systems, making architectural decision ...

Remote Inventory Software Engineer – Java/TypeScript, Neo4j/SQL

Ciena is seeking a Software Developer for their Professional Services Inventory team. This role encompasses designing, developing, and unit testing software for carrier grade applications, supporting remote work from Argentina. The ideal candidate should have 2-15 years of experience and be proficient ...

AI Research Engineer Large Scale LLM Systems and Innovation

Framework Ventures is seeking an innovative AI Model Developer to enhance architectures for cutting-edge models. You will lead initiatives to drive efficiency and new capabilities, requiring expertise in LLM architectures and pre-training optimization. The ideal candidate will hold a degree in Computer ...

Remote Lead .NET Engineer — AI Driven Healthcare Platform

Werben Hr is seeking a Lead .NET Developer to contribute to a long-term healthcare technology initiative. This fully remote role will require dedication and allows for impactful contributions within a mission-critical environment. Responsibilities include leading a development team, designing scalable ...

Remote Inventory Software Engineer – Java/TypeScript, Neo4j/SQL

Ciena is seeking a Software Developer for their Professional Services Inventory team. This role encompasses designing, developing, and unit testing software for carrier grade applications, supporting remote work from Argentina. The ideal candidate should have 2-15 years of experience and be proficient ...

Lead Linux OS Engineer — Build a Secure, Cross Device OS

Framework Ventures in Argentina is seeking a Lead Linux Developer to innovate a secure, user-friendly operating system. You will be responsible for mentoring a team, designing core OS components, and ensuring seamless integration across diverse devices. The ideal candidate will have a degree in Compute ...

Remote Android Kotlin Engineer Build High Performance Apps

Rehire is seeking an experienced Android Mobile Developer for a fully remote position. The successful candidate will be responsible for developing and maintaining high-performance Android applications while collaborating with international teams to ensure efficient production releases. The role require ...

Senior Python+React Full Stack Engineer for AI Platform

Intellectsoft is seeking an experienced software developer in Buenos Aires to develop advanced AI-powered platforms. This position emphasizes backend services using Python and FastAPI, while also involving UI development with React.js. The ideal candidate should have over 7 years of software developmen ...

Senior Python+React Full Stack Engineer for AI Platform

Intellectsoft is looking for a skilled software developer based in Buenos Aires to join their dynamic team. You will engage in building scalable backend services and APIs while maintaining high-quality code and performance standards. The ideal candidate will have extensive experience in Python and Reac ...

Senior Java Backend Engineer Microservices with Spring

Baufest, una empresa de tecnología en Argentina, busca un/a Java SSR Developer para sumarse a su equipo. Se requiere más de 3 años de experiencia en desarrollo backend con Java y microservicios, así como conocimiento en Spring Boot. Las responsabilidades incluyen la modelización de especificaciones, re ...

Senior Full Stack Engineer: Microservices & Fintech APIs

NIR-YU, a digital solutions provider in Buenos Aires, Argentina, is seeking a skilled developer experienced in Java (Spring Boot) or Node.js. The role entails developing robust applications while ensuring integration with third-party APIs. Key skills include proficiency in microservices, RESTful APIs, ...

Remote Salesforce RevOps & CRM Data Specialist (Argentina)

OpsArmy Careers is seeking a Salesforce Developer based in Argentina to audit and clean Salesforce data and configure CRM processes. This full-time position allows for remote work within Argentina, emphasizing growth and efficiency in tech operations. The ideal candidate should possess strong Salesforc ...

Remote Blockchain Engineer – Solidity/TypeScript + Equity & PTO

A leading blockchain company in Argentina seeks an experienced software developer to join their remote team. You will develop new features using Node.js and TypeScript, design and deploy Solidity smart contracts, and contribute to CI/CD processes. The candidate should have over 5 years in software development, w ...

Senior .NET & SQL Engineer — Remote, Flexible

A leading recruitment firm in Buenos Aires is seeking a skilled Software Developer to design and implement enterprise-level technology initiatives. This role involves developing scalable and fault-tolerant software solutions, analyzing workflows, and collaborating with diverse teams. The ideal candidate will hav ...

React Frontend Engineer (SSR) Remote & AI Driven UI

Una empresa del sector educativo-tecnológico está buscando un/a Frontend Developer con experiencia en React y una fuerte orientación hacia la IA. El rol incluye la construcción de interfaces reutilizables, participación en revisiones de código y colaboración en el diseño de nuevas funcionalidades. Se ofrece un a ...

Senior Backend Engineer Java, Distributed Systems & Impact

Una empresa en innovación tecnológica busca incorporar un Software Developer - Back end en Argentina. Te encargarás de diseñar algoritmos, producir código limpio y colaborar con otros desarrolladores. Se requiere al menos 5 años de experiencia en desarrollo back-end y conocimientos en Java. Se ofrecen beneficios ...

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    Senior Fullstack Developer Reactjava Jobs in Buenos Aires Job Search Guide, Trends and Insights