Senior Fullstack Developer Reactjava Jobs in Buenos Aires, Argentina

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Senior Data Engineer

FLORIDA, Argentina | Posted on 02/27/2026 At Luxer One, we’re on a mission to relentlessly improve the way the world receives goods! We design and deploy package locker solutions for retail, office, universities, as well as apartment complexes throughout the US and Canada. We are committed to making ...

Senior ETL Engineer: Snowflake & Matillion Expert

Globaltize is seeking an experienced ETL/ELT Developer in Argentina. The ideal candidate will have strong SQL and ETL development skills, with experience in Matillion, SQL Server, and Snowflake. Responsibilities include developing and optimizing ETL pipelines, collaborating with business stakeholders, and ensuri ...

Billing Systems Engineer (PHP/Go) — Scale Financials

CommandLink is seeking a Billing Systems Developer to build and scale financial systems. This role involves designing billing systems, integrating with payment gateways like Stripe, and ensuring data integrity. Applicants should have strong experience with PHP or Go, and a solid understanding of financial transa ...

Senior .NET Engineer: RESTful APIs & Microservices

A dynamic software development company in Argentina is looking for a skilled .Net Developer to join their fast-growing team. The role requires extensive experience in the .Net ecosystem, strong SQL knowledge, and advanced English skills. The ideal candidate should have a passion for innovation and a strong under ...

Senior Flutter Architect Remote & Flexible Growth

A leading Latin American development company is seeking a skilled Flutter Developer to architect high-performance applications. This dynamic role involves building and maintaining complex Flutter applications while collaborating with a talented team. Candidates should have extensive experience in mobile developm ...

Senior Python Django + React Full Stack Engineer Remote

A leading software consultancy is seeking a Full-Stack Developer to join its dynamic team in Argentina. The ideal candidate will have over 5 years of experience with open-source technologies and strong expertise in Python and JavaScript. You will develop high-quality applications, work remotely, and enjoy a coll ...

Senior Python Django + React Full Stack Engineer Remote

A leading software consultancy is seeking a Full-Stack Developer to join its dynamic team in Argentina. The ideal candidate will have over 5 years of experience with open-source technologies and strong expertise in Python and JavaScript. You will develop high-quality applications, work remotely, and enjoy a coll ...

Senior .NET Engineer: RESTful APIs & Microservices

A dynamic software development company in Argentina is looking for a skilled .Net Developer to join their fast-growing team. The role requires extensive experience in the .Net ecosystem, strong SQL knowledge, and advanced English skills. The ideal candidate should have a passion for innovation and a strong under ...

Senior Flutter Architect Remote & Flexible Growth

A leading Latin American development company is seeking a skilled Flutter Developer to architect high-performance applications. This dynamic role involves building and maintaining complex Flutter applications while collaborating with a talented team. Candidates should have extensive experience in mobile developm ...

Senior Full Stack Engineer (Python + Next.js)

Minutentag in Argentina is seeking a Full-Stack Developer to enhance their digital auction and marketplace platform. You will design full-stack features, develop RESTful APIs, and create responsive user interfaces while collaborating with product and design teams. Adequate candidates should have over 4 ...

Senior Full Stack Engineer (Python + Next.js)

Minutentag in Argentina is seeking a Full-Stack Developer to enhance their digital auction and marketplace platform. You will design full-stack features, develop RESTful APIs, and create responsive user interfaces while collaborating with product and design teams. Adequate candidates should have over 4 ...

Senior Flutter Architect Remote & Flexible Growth

A leading Latin American development company is seeking a skilled Flutter Developer to architect high-performance applications. This dynamic role involves building and maintaining complex Flutter applications while collaborating with a talented team. Candidates should have extensive experience in mobile developm ...

MuleSoft API Integration Engineer for Scalable Solutions

Eleks, a technology solutions company in Argentina, seeks an experienced developer for API‑led integration solutions using MuleSoft. The role involves designing and implementing integrations and working collaboratively with architects and business analysts. Ideal candidates will have solid experience w ...

AI/LLM Engineer — End to End AI Features

OneSeven Tech (OST) in San Fernando, Argentina, is seeking a skilled developer to own the end-to-end development of AI features. Responsibilities include building intelligent agents, automating processes, and collaborating with Applied Science teams. The ideal candidate will have strong Python engineer ...

Remote WordPress Architect & AI Innovator

Growmodo is seeking a passionate WordPress Developer / AI Specialist to take ownership of web projects. In this full-time remote position, you'll be responsible for building custom themes, optimizing performance, and utilizing AI tools for development. The ideal candidate should have strong skills in P ...

Remote WordPress Architect & AI Innovator

Growmodo is seeking a passionate WordPress Developer / AI Specialist to take ownership of web projects. In this full-time remote position, you'll be responsible for building custom themes, optimizing performance, and utilizing AI tools for development. The ideal candidate should have strong skills in P ...

Marketo Migration Specialist: Pardot to Marketo Expert

FPT Latin America in Buenos Aires is hiring a Marketo Developer to assist in migrating from Salesforce Pardot to Adobe Marketo. This technical position involves campaign migration, maintaining platform integrations, and ensuring data integrity. The ideal candidate should have proven experience with Mar ...

Remote WordPress Architect & AI Innovator

Growmodo is seeking a passionate WordPress Developer / AI Specialist to take ownership of web projects. In this full-time remote position, you'll be responsible for building custom themes, optimizing performance, and utilizing AI tools for development. The ideal candidate should have strong skills in P ...

Senior AI Driven Full Stack Engineer (Python+React) Remote

Intellectsoft is looking for an experienced software developer with expertise in Python and React.js. You will be part of a dynamic team developing an AI-powered platform aimed at optimizing business processes and enhancing decision-making using advanced analytics. This role offers the opportunity to w ...

Remote Android Kotlin Engineer Build High Performance Apps

Rehire, a technology support company, is seeking an experienced Android Mobile Developer for a fully remote position. The ideal candidate will possess strong expertise in Kotlin and a solid understanding of Android development. Responsibilities include developing and maintaining high-performance Androi ...

Remote Android Kotlin Engineer Build High Performance Apps

Rehire, a technology support company, is seeking an experienced Android Mobile Developer for a fully remote position. The ideal candidate will possess strong expertise in Kotlin and a solid understanding of Android development. Responsibilities include developing and maintaining high-performance Androi ...

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 focuses on enhancing core capabilities of a mission-critical SaaS platform. Responsibilities include designing scalable systems, making architectural decision ...

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 focuses on enhancing core capabilities of a mission-critical SaaS platform. Responsibilities include designing scalable systems, making architectural decision ...

Remote Android Kotlin Engineer Build High Performance Apps

Rehire, a technology support company, is seeking an experienced Android Mobile Developer for a fully remote position. The ideal candidate will possess strong expertise in Kotlin and a solid understanding of Android development. Responsibilities include developing and maintaining high-performance Androi ...

Remote Senior Backend Engineer — Scale SaaS & Mentor

Velozient in Argentina is seeking a full-time remote Agentic Developer. The role requires over 8 years of experience in .NET, C#, Python, Node.js, or similar technologies. You'll contribute to a mission-critical SaaS platform, focusing on designing scalable systems, making architectural decisions, and ...

Backend Engineer for AI Powered Event Platform

Gomry Payments is seeking a backend developer to build user-facing features and enhance database performance in a dynamic, trust-driven culture. You'll improve infrastructure and monitoring while occasionally collaborating onsite in San Francisco. Join our small teams that prioritize quality and innova ...

Senior Backend Engineer Remote Architecting Scalable SaaS

Velozient in Argentina is seeking a full-time remote Agentic Developer to contribute to a mission-critical SaaS platform. Candidates should have over 8 years of experience with .NET, C#, Python, or Node.js. The role involves designing scalable systems, enhancing core product capabilities, and mentoring ...

Senior Backend Engineer Remote Architecting Scalable SaaS

Velozient in Argentina is seeking a full-time Agentic Developer to enhance their mission-critical SaaS platform. Candidates should have 8+ years of experience in .NET, C#, Python, or Node.js and possess excellent English communication skills. The role focuses on designing scalable systems, making archi ...

Remote Senior Backend Engineer — Scale SaaS & Mentor

Velozient in Argentina is seeking a full-time remote Agentic Developer. The role requires over 8 years of experience in .NET, C#, Python, Node.js, or similar technologies. You'll contribute to a mission-critical SaaS platform, focusing on designing scalable systems, making architectural decisions, and ...

Marketo Migration Specialist: Pardot to Marketo Expert

FPT Latin America in Buenos Aires is seeking a Marketo Developer to support migration from Salesforce Pardot to Adobe Marketo. This hands-on role involves campaign migration, maintaining platform integrations, and ensuring data integrity. The ideal candidate will have proven experience with Marketo and ...

Marketo Migration Specialist: Pardot to Marketo Expert

FPT Latin America is looking for a Marketo Developer in Buenos Aires to support a migration project from Salesforce Pardot to Adobe Marketo. This hands-on role involves campaign migration, maintaining integrations, and ensuring data integrity. Ideal candidates should have proven experience with Marketo ...

Senior React Engineer: SSR, AWS & Postgres Expert

Quadion Technologies is looking for a Sr React Developer to join our team in Buenos Aires, Argentina. The successful candidate will have strong React skills and advanced English proficiency, focusing on international projects. Benefits include an additional week of vacation, reimbursement of utilities, ...

Senior Backend Engineer Remote Architecting Scalable SaaS

Velozient in Argentina is seeking a full-time Agentic Developer to enhance their mission-critical SaaS platform. Candidates should have 8+ years of experience in .NET, C#, Python, or Node.js and possess excellent English communication skills. The role focuses on designing scalable systems, making archi ...

Senior React Engineer: SSR, AWS & Postgres Expert

Quadion Technologies in Pilar, Argentina is seeking a Sr React Developer to work on innovative international projects. Candidates should have proven experience in React development and advanced English proficiency. The role offers an additional week of vacation, reimbursement of electricity and interne ...

Senior Backend Engineer Remote Architecting Scalable SaaS

Velozient in Argentina is seeking a full-time remote Agentic Developer to contribute to a mission-critical SaaS platform. Candidates should have over 8 years of experience with .NET, C#, Python, or Node.js. The role involves designing scalable systems, enhancing core product capabilities, and mentoring ...

Senior Backend Engineer Remote Architecting Scalable SaaS

Velozient in Argentina is seeking a full-time Agentic Developer to enhance their mission-critical SaaS platform. Candidates should have 8+ years of experience in .NET, C#, Python, or Node.js and possess excellent English communication skills. The role focuses on designing scalable systems, making archi ...

Desarrollador Full Stack Senior Caballito

Empresa dedicada al desarrollo y operación de soluciones en nube de alto rendimiento, se encuentra en la búsqueda de un/a Programador/a PHP/Laravel para sumarse a su equipo de trabajo. Ubicación: Caballito, CABA. Modalidad: Híbrido. Horario: Lunes a viernes de 8 a 17 hs. < ...

Desarrollador PL/SQL Sr

Somos Ecosistemas Somos Ecosistemas, una compañía global de tecnología que conecta a nuestros clientes con soluciones a medida, integrales e innovadoras. Operamos en más de 15 países, incluyendo Argentina, Chile, Brasil, México, Estados Unidos y España. ¡Queremos que seas parte de este gran equip ...

AI/ML Engineer

As the Sr AI/ML Engineer, you’ll lead the development of our core machine learning systems. You’ll fine-tune large language models (LLMs), build NLP pipelines, automate insurance workflows, and implement user feedback loops for continual model improvement.This is a senior role for someone who’s not afraid ...

Senior AI/ML Engineer – NLP & LLM Expert (Remote)

As the Sr AI/ML Engineer, you’ll lead the development of our core machine learning systems. You’ll fine-tune large language models (LLMs), build NLP pipelines, automate insurance workflows, and implement user feedback loops for continual model improvement.This is a senior role for someone who’s not afraid ...

Senior Software Engineer Backend It Security (Buenos Aires)

Como Senior Software Engineer Backend en Mercado Libre, diseñará y escalarás sistemas innovadores y seguros que resuelven problemas reales y de alto impacto. Trabajará en un entorno dinámico con tecnología de vanguardia, aplicando buenas prácticas de ingeniería, modelos de IA propios y aprendizaje continuo ...

Senior Lead Software Engineer Python/Smalltalk (Buenos Aires)

e an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Senior Lead Software Engineer at JPMorgan Chase within the Corporate & Investment Banking Markets Team, you are an integral part of an agile team that works t ...

Contract: Senior Software Engineer Newsela Writing Team

Contract: Senior Software Engineer - Newsela Writing Team Why You'll Love This Role: We're hiring a Senior Software Engineer Contractor for the Writing product team. This is a hands‑on role on a small, full‑stack team building AI‑powered learning experiences. You'll ship across th ...

Software Engineer Insights

We're looking for a top-notch, passionate senior developer to be part of our world-class Social Media team. You will play a pivotal role in the design, development, and maintenance of their core systems. You will be responsible for building robust, scalable, and high-performance applications that powe ...

Software Engineer (Senior) Id51942 (Buenos Aires)

AgileEngine is an Inc. **** company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. W ...

Software Engineer Insights

We're looking for a top-notch, passionate senior developer to be part of our world-class Social Media team. You will play a pivotal role in the design, development, and maintenance of their core systems. You will be responsible for building robust, scalable, and high-performance applications that power the ...

Remote Python Cloud Engineer (AWS/Azure)

Join our team as a Python Software Developer — build cloud apps on AWS/Azure, modernize legacy systems, and shape our platform with a collaborative, inclusive team. We’re looking for a Python Software Developer to join our team as we modernize our applications and move away from legacy systems. You ...

React Front End Engineer

A prominent tech company in Buenos Aires seeks a skilled Software Developer with strong React.js skills and a relevant degree. The role involves refactoring code, improving application performance, and collaborating with a talented team across various projects. Ideal candidates are fluent in English and possess ...

Remote Inventory Software Engineer – Telecom

A leading technology firm is seeking a Software Developer for their Professional Services Inventory team. The role involves designing, developing, and unit testing software for carrier grade applications. Candidates should have 2-15 years of relevant experience and expertise in Java, TypeScript, and database tec ...

Senior BI & Data Analyst — AI Dashboards on AWS QuickSight

Una consultora de tecnología en Buenos Aires busca un/a Data / BI Developer con enfoque en AI (AWS QuickSight) para un proyecto en analítica de negocio. Se requiere experiencia en Business Intelligence y en construcción de dashboards. La modalidad es freelance y el trabajo es híbrido, ofreciendo un entorno dinám ...

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