8,794+ Senior Reactnodejs Fullstack Developer Jobs in Argentina — Top Companies Hiring July 2026

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Senior Java Engineer: API Integrations & Cloud Flextime

AgileEngine is seeking a Senior Java Engineer to implement features, build integrations, and maintain the Metadata Bus platform supporting Indeed’s Compliance infrastructure. You will design and integrate REST APIs with internal and external systems, work across MongoDB and SQL databases, troubleshoot complex ...

Senior DevOps Engineer Remote, SRE & CI/CD

AgileEngine is seeking a Senior DevOps Engineer to support the Dev Environments team, optimizing infrastructure, automating costs, and delivering reliable internal tooling on AWS. You will design and maintain CI/CD pipelines with GitLab CI, implement IaC with Terraform and Ansible, and write Python automation ...

Senior Java Backend Engineer — Remote & Flexible Hours

AgileEngine is seeking a Senior Java Engineer to implement new features, build integrations, and maintain the Metadata Bus platform supporting Indeed’s Compliance infrastructure. You will design and integrate REST APIs with internal and external systems, and work across MongoDB and SQL databases. Join ...

Senior AppSec Engineer AI Driven Secure SDLC

AgileEngine, LLC. in Buenos Aires seeks a Senior Application Security Engineer to architect and build automated security layers within the SDLC, implement AI-enabled secure code scanning, and integrate CI/CD security tooling for a large-scale financial services program. You will mainly work in Python t ...

Senior Data Scientist: MMM & Bayesian Modeling (Remote)

AgileEngine is seeking a Senior Data Scientist to lead Marketing Mix Modeling (MMM) implementations within a cross-channel optimization product. You will build client-specific MMM models using Bayesian frameworks such as Meridian and Robin, and develop scalable, production-ready models in Python and SQL on AW ...

Senior Java Backend Engineer — Remote & Flexible Hours

AgileEngine is seeking a Senior Java Engineer to implement new features, build integrations, and maintain the Metadata Bus platform supporting Indeed’s Compliance infrastructure. You will design and integrate REST APIs with internal and external systems, and work across MongoDB and SQL databases. Join ...

Consultor SAP Integración S/4HANA Senior Remoto

MaxIT Consulting - Max Corporate Group, con sede en Belgrano (CABA) y Tampa, busca un Consultor SAP Senior de Integración para un proyecto S/4HANA en Buenos Aires. Modalidad remota con reuniones presenciales ocasionales en Martínez, GBA o Retiro, CABA. Se requieren 7+ años de experiencia en SAP, PI/PO/ ...

Senior Data Scientist: Security Risk & Vulnerability Analytics

AgileEngine is seeking a Senior Data Scientist to develop predictive models and analytics that prioritize vulnerabilities by risk and business impact. You will structure and analyze large security datasets, build ML algorithms to reduce noise and false positives, and establish dashboards for data-driven gover ...

Senior Frontend Engineer — AI Driven Email Personalization

AgileEngine is seeking a Senior/Lead Frontend Engineer to craft scalable, data-heavy email experiences. You will build personalized templates with React and Apache Velocity, consuming APIs to drive logic and personalization across email channels. You will translate designs into modular email components ...

Senior SAP FI Consultant — Hybrid (S/4HANA)

MaxIT Consulting - Max Corporate Group en Buenos Aires busca un Consultor SAP FI Senior para un proyecto de implementación SAP S/4HANA. El perfil es Freelance o Contractor, con modalidad híbrida y disponibilidad de viajar/trabajar en CABA según partner. Se requiere más de 5 años de experiencia, experie ...

Senior Java Backend Engineer — Remote & Flexible Hours

AgileEngine is seeking a Senior Java Engineer to implement new features, build integrations, and maintain the Metadata Bus platform supporting Indeed’s Compliance infrastructure. You will design and integrate REST APIs with internal and external systems, and work across MongoDB and SQL databases. Join ...

Salesforce Data Cloud Senior BA — Remote & Flexible

AgileEngine is seeking a Senior Business Analyst to support an enterprise migration from a legacy MDM to Salesforce Data Cloud. You will work with marketing and product teams to translate requirements into scalable cloud data workflows, validate pipelines with SQL and Snowflake, and connect data teams with le ...

Senior Business Analyst — Salesforce Data Cloud (Remote)

AgileEngine, LLC. is seeking a Senior Business Analyst to support Salesforce Data Cloud migration and design scalable data flows in collaboration with marketing and product teams. You will translate requirements into Salesforce Data Cloud use cases and validate data pipelines to ensure high-quality dat ...

Senior Java Backend Engineer — Remote & Flexible Hours

AgileEngine is seeking a Senior Java Engineer to implement new features, build integrations, and maintain the Metadata Bus platform supporting Indeed’s Compliance infrastructure. You will design and integrate REST APIs with internal and external systems, and work across MongoDB and SQL databases. Join ...

Senior Java Backend Engineer — Remote & Flexible Hours

AgileEngine is seeking a Senior Java Engineer to implement new features, build integrations, and maintain the Metadata Bus platform supporting Indeed’s Compliance infrastructure. You will design and integrate REST APIs with internal and external systems, and work across MongoDB and SQL databases. Join ...

Senior Frontend Engineer — Email Personalization & AI Remote

AgileEngine, LLC. is seeking a Senior/Lead Frontend Engineer to craft highly scalable, data-driven email experiences at the intersection of frontend engineering and lifecycle marketing. You will develop personalized, data-heavy email templates and reusable components using React and Apache Velocity, co ...

Senior React Native Engineer Offline First, Distributed

AgileEngine in Argentina is seeking a Senior Software Engineer to design and implement a multi-tier sync architecture for a high-volume QSR platform. You will work across local device store, restaurant edge, and cloud backend, applying conflict-resolution strategies and ensuring offline-first guarantees. ...

Senior Program Manager – Japanese Speaking PMO (Remote)

AgileEngine, LLC. in Rosario, Argentina, is seeking a Senior Program Manager with advanced Japanese language skills to lead an Application Security program. You will coordinate code hygiene, manage change initiatives, and track progress and risks across PMO teams. The role requires 8+ years in program ...

Senior Java Backend Engineer — Remote & Flexible Hours

AgileEngine is seeking a Senior Java Engineer to implement new features, build integrations, and maintain the Metadata Bus platform supporting Indeed’s Compliance infrastructure. You will design and integrate REST APIs with internal and external systems, and work across MongoDB and SQL databases. Join ...

Senior Java Engineer — Remote, API Integrations & Cloud

AgileEngine, LLC. is seeking a Senior Java Engineer to implement new features on the Metadata Bus platform, design REST APIs, and ensure robust integrations for our compliance infrastructure. You will work across MongoDB and SQL databases, optimize data models, and contribute to CI/CD pipelines and clo ...

Senior AI Driven AppSec Engineer — Remote/Flex

AgileEngine, LLC. in Rosario, Argentina, is seeking a Senior Application Security Engineer to architect and build automated security layers within the SDLC, delivering AI-enabled secure code scanning, hardened automation, and CI/CD security tooling integration for a large-scale financial services program. </p ...

Senior Java Backend Engineer — Remote & Flexible Hours

AgileEngine is seeking a Senior Java Engineer to implement new features, build integrations, and maintain the Metadata Bus platform supporting Indeed’s Compliance infrastructure. You will design and integrate REST APIs with internal and external systems, and work across MongoDB and SQL databases. Join ...

Senior Data Scientist MMM Lead (Remote/Flexible)

AgileEngine is seeking a Senior Data Scientist to lead the implementation of a Marketing Mix Modeling framework into a cross-channel optimization product. You will build client-specific MMM models using Bayesian frameworks and develop scalable, production-ready data science solutions in Python, SQL, and AWS. ...

Senior Frontend Engineer, AI Email Experiences (Remote)

AgileEngine is seeking a Senior/Lead Frontend Engineer to craft scalable, data-rich email experiences using React and Apache Velocity. You will build personalized templates, consume APIs, and ensure cross-client compatibility across Outlook, Gmail, and Apple Mail. Remote-friendly with flexible scheduli ...

Senior Franchise Revenue Auditor – Global Shared Services

Wyndham Hotels and Resorts, Inc. is seeking an Audit Services Franchise Revenue Sr. Analyst in Buenos Aires, Argentina. This role requires strong analytical skills and an understanding of auditing principles. You will support auditable processes, conduct virtual audits, and collaborate closely with fra ...

Senior Backend Engineer Go/GCP Microservices (Remote)

AgileEngine is seeking a Lead Backend Engineer to design and build scalable microservices in Golang as part of a cloud-native modernization on Google Cloud Platform. You will own infrastructure provisioning with Terraform and migrate data to Cloud SQL/Spanner, collaborating with mobile engineers on API schema ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Analista Senior de Riesgo de Ingresos (Remoto)

Mercado Libre busca Analista Senior de Riesgo de Ingresos para su unidad de Mercado Envíos en Buenos Aires, con modalidad remota. El puesto es de tiempo completo y exige experiencia en análisis de datos, conocimiento de SQL y metodologías de riesgo. Entre las funciones clave están identificar riesgos e ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Ingeniero de Instrumentación y Control – Semi Senior

CSI busca un/a Ingeniero/a de Instrumentación Semi Senior para sumarse al equipo de Ingeniería Eléctrica y participar en proyectos industriales, energéticos y de procesos. Se trabajará en estándares globales, integrando equipos multidisciplinarios y con autonomía para ejecutar actividades de instrument ...

Remote Senior Loyalty Planning & Financial Modeling Lead

Mercado Libre busca un Especialista de Planeamiento para Loyalty en Buenos Aires, con enfoque en modelado financiero y proyecciones para el programa de lealtad. El rol es senior, de tiempo completo y remoto. Se requieren 5+ años en planificación o analítica, dominio de SQL/Excel y un grado universitari ...

Senior Backend Engineer, Payments Hybrid (Buenos Aires)

SQUIRE, the leading business management platform for barbers, seeks a Senior Backend Engineer (Payments Team) to build and maintain payment systems and financial infrastructure. You will work within the Platform Community under the Engineering Manager, focusing on reliable, scalable payment solutions. ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Senior Windows Desktop Architect Lead UI & Accessibility

Speechify is seeking a Senior Software Engineer to lead the design, architecture, and development of native Windows desktop applications using Windows App SDK, WinUI, C#, XAML, and occasionally C++. You will drive best practices, ensure accessibility, collaborate with product designers, and mentor engineers w ...

Analista Senior de Riesgo de Ingresos — Remoto

Mercado Libre busca Analista Senior de Riesgo de Ingresos para su unidad de Mercado Envíos en Buenos Aires, con modalidad remota. El puesto es de tiempo completo y exige experiencia en análisis de datos, conocimiento de SQL y metodologías de riesgo. Entre las funciones clave están identificar riesgos e ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Senior Backend Engineer Java & AI Systems (Hybrid)

Lato Jobs busca un Ingeniero de Software Senior para un rol de tiempo completo en Buenos Aires, Argentina, con modalidad híbrida. Diseñarás arquitecturas escalables con foco en seguridad, rendimiento y coste, y desarrollarás características end‑to‑end para el dominio de Afiliados. Se requiere experienc ...

Senior Java Staff Engineer Microservices & Cloud Lead

dLocal in Buenos Aires, Argentina, seeks a Staff Engineer (Java) to lead design and delivery of reliable Java microservices for finance core and reconciliation. You will define engineering standards, drive automation, and mentor teammates through reviews and knowledge sharing. The role requires deep Ja ...

Senior Biodiversity Lead for High Altitude Mining

First Quantum Minerals Ltd está buscando un Superintendente de Biodiversidad para apoyar un proyecto minero en la región de Salta, Argentina. Debe aportar conocimientos técnicos en biodiversidad y ecología para evaluar, gestionar y supervisar impactos en ecosistemas de gran altitud. Las responsabilidad ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Senior Elixir Engineer — Remote, LiveView & Evented Systems

RYZ Labs is seeking a Senior Software Engineer to join one of our client’s teams in the sports merchandising industry. The role focuses on developing, maintaining, and evolving a service-oriented, event-driven ecosystem using Elixir, Phoenix, LiveView, PostgreSQL, and RabbitMQ. You will work in a distr ...

Senior Designated Services Engineer – Customer Success Liaison

WEKA in Buenos Aires, Argentina, seeks a Senior Designated Services Engineer to strengthen customer success for leading enterprises. You will resolve complex technical issues, bridge gaps between customers and Engineering, and drive higher customer satisfaction through proactive monitoring and thorough docume ...

Senior Salesforce Data Cloud Analyst Data Flows

AgileEngine in Argentina is seeking a Senior Business Analyst to support Indeed’s strategic migration from a legacy MDM platform to Salesforce Data Cloud, collaborating with marketing and product teams to translate requirements into scalable data solutions. You will design and optimize data flows, vali ...

Senior DevOps Engineer: IAM & Windows Infra Expert

Software Mind is seeking an experienced IAM and Windows infrastructure specialist to join our engineering team. You’ll collaborate with development and operations to strengthen security, automate admin tasks, and implement robust access controls. The role covers evaluating solutions, maintaining IIS an ...

Senior QA Automation Engineer — AI API & Serverless

AgileEngine, LLC. is looking for a Senior QA Automation Engineer to own the quality strategy for serverless middleware powering ordering, loyalty, payments, and third‑party integrations across a major consumer platform. You will design and maintain automated test suites for RESTful APIs and event‑drive ...

Senior Data Scientist: MMM Modeling, Bayesian, AWS

AgileEngine is seeking a Senior Data Scientist to lead the implementation of a Marketing Mix Modeling framework into a cross-channel optimization product. You will develop client-specific MMM models using Bayesian frameworks including Meridian and Robin, and build scalable, production-ready models with Python ...

Senior QA Automation Engineer — Serverless API Testing

AgileEngine in Rosario, Argentina is seeking a Senior QA Automation Engineer to define the quality strategy for serverless middleware services utilized across a major consumer platform. The ideal candidate will design and maintain automated testing for RESTful APIs and manage quality validations using AI-assi ...

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    Senior Reactnodejs Fullstack Developer Jobs in Argentina Job Search Guide, Trends and Insights