3,522+ Senior Fullstack Engineer Reactnode Cloudnative Python Jobs in San Juan, Argentina — Local Employers Hiring June 2026

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Senior Full Stack Engineer — Treasury & Payments Platform

EPAM Systems is looking for a Senior Full-Stack Engineer in Argentina to lead initiatives in Treasury technology, specializing in wire transfer processing and global bank account management. The candidate will ensure operational reliability and will be engaged in design and development efforts. This op ...

Senior Full Stack Engineer for Auctions Marketplace

Minutentag is seeking a full-stack Software Developer in San Juan, Argentina. You will develop and maintain our digital auction and marketplace platform, delivering exceptional user experiences across the technology stack. The ideal candidate has over 4 years of experience in software development, soli ...

Senior Red Team Engineer — PenTest & Security (Remote)

Fever España is seeking a cybersecurity expert to enhance its Offensive Security team in San Juan, Argentina. The candidate will conduct penetration tests and collaborate with various teams to strengthen security measures across the organization. The role requires a degree in Computer Science or a rela ...

Senior Backend Engineer Attendance Analytics for EduTech

Newsela is seeking a Senior Software Engineer to join the EveryDay Labs team in San Juan, Argentina. In this role, you will design and maintain software components that enhance attendance analytics and student data systems. You will develop new features, automate processes, and contribute to technical discuss ...

Remote Senior OT Security Engineer Critical Infrastructure

Strategic Staffing Solutions is hiring a Senior OT Cybersecurity Engineer for a 100% remote position focused on securing critical infrastructure and industrial environments. You will implement cybersecurity solutions, support deployments, and provide post-deployment assistance. The ideal candidate must ...

Senior Database Reliability Engineer — Remote & Scalable Systems

Sezzle is looking for a Senior Database Reliability Engineer to design, build, and scale the database platform across its applications in San Juan, Argentina. This remote role requires expertise in database engineering and software development, focusing on improving database reliability and performance. < ...

Senior Backend Engineer Remote Architecting Scalable SaaS

Velozient in Argentina is seeking a remote Agentic Developer to contribute to a mission-critical SaaS platform. Candidates should have over 8 years of experience in .NET, C#, Python, or Node.js, along with excellent English communication skills. The role involves designing scalable systems, participati ...

Senior Full Stack Engineer Remote | Angular & .NET

Panoptyc is seeking a Senior Full Stack Engineer in Argentina to strengthen their engineering team. This role emphasizes building high-performance user interfaces in Angular and developing robust backend services in .NET (C#). You will bridge backend infrastructure and user experience. The ideal candid ...

Data Engineer — Learn from Top Mentors & Offsite Trips

Kelsus, Inc. is seeking a Data Engineer in San Miguel de Tucumán, Argentina. In this role, you will design and develop efficient data pipelines using Python and AWS technologies, including Glue and Lambda. You will play a key role in implementing ETL processes for data loading into relational databases, espec ...

Senior Backend Engineer — AI Powered Event Platform

About Gomry Gomry is an AI‑native event platform targeting the $400B annual advertising budget that goes into events. We are building a proprietary AI‑native ad network that installs on our own and third‑party ticketing platforms, with ultra‑native placements for the event industry. This enables e ...

Senior Full Stack Engineer – Auctions Platform (Next.js)

Minutentag in San Luis, Argentina, is seeking a Full-Stack Developer responsible for developing and maintaining our digital auction and marketplace platform. This role involves full-stack development, incorporating both frontend and backend work to deliver high-quality user experiences. The ideal candi ...

Remote Senior OT Security Engineer Critical Infrastructure

Strategic Staffing Solutions is looking for a Senior OT Cybersecurity Engineer to join their team remotely. This role focuses on securing critical infrastructure and industrial environments. The successful candidate will implement cybersecurity solutions, support deployments, and provide post-deploymen ...

Senior Full Stack Engineer Remote | Angular & .NET

Panoptyc is seeking a versatile Senior Full Stack Engineer based in Argentina to lead the development of high-performance Angular user interfaces and robust .NET services. This remote position emphasizes bridging backend infrastructure with user experience. The ideal candidate has deep expertise in Ang ...

Senior React Engineer: SSR, AWS & Postgres Expert

Quadion Technologies is seeking a Sr React Developer in San Luis, Argentina. You will work on international projects, leveraging your React expertise and strong English skills. Responsibilities include enhancing project outcomes and collaborating with teams. The role offers benefits like additional vac ...

Senior Red Team Engineer — PenTest & Security (Remote)

Fever España is seeking a Cybersecurity Expert to enhance their Offensive Security team. This role will conduct penetration tests to identify vulnerabilities in infrastructure while collaborating with diverse teams on security solutions. The ideal candidate will have a degree in Computer Science and at ...

Senior Oilfield Technical Sales Engineer — LATAM Travel

Rad Hires is seeking a Technical Sales representative in San Luis, Argentina, to support oilfield operations. This role involves fostering relationships with oilfield service companies while developing strategic sales plans and providing essential technical support. The ideal candidate will have at lea ...

Senior Backend API Engineer SDUI & Cloud Reliability

TurnKey Tech Staffing is seeking a seasoned backend engineer to lead the design and operation of APIs for Server-Driven UI across Flutter clients. You will take ownership over backend services, ensure service reliability, and drive technical capabilities within the team. The ideal candidate has over 7 ...

Senior React Native Engineer Mobile Banking App

Baufest, con sede en San Luis, Argentina, busca un/a React Native Developer SSr para unirse a su equipo. El objetivo es desarrollar y mantener aplicaciones móviles para Android e iOS utilizando React Native, colaborando en la evolución de la arquitectura del frontend. Los candidatos deben tener experie ...

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 Full Stack Engineer: Microservices & Fintech APIs

NIR-YU in San Luis, Argentina, is seeking a developer with strong expertise in Java (Spring Boot) or Node.js. Ideal candidates should have experience in building microservices and RESTful APIs, integrating third-party APIs, and knowledge of event-driven architecture. Proficiency in databases like Postg ...

Senior Mobile Engineer (React Native + Rails) Remote

Svitla Systems is seeking a Senior Full Stack Mobile Engineer to work remotely. This role focuses on leveraging Ruby on Rails and React for creating high-value mobile applications. Responsibilities include enhancing mobile apps and collaborating with back-end and front-end developers. Ideal candidates ...

Senior Backend Java Engineer | Microservices & Spring Boot

Brightside It Consulting busca incorporar un Backend Engineer Senior en San Luis, Argentina. Esta posición se orienta al desarrollo de servicios robustos y escalables, siendo parte de un equipo técnico estratégico. Los candidatos deberán tener experiencia sólida en Java contemporáneo, así como en buena ...

Senior Crypto Wallet Engineer Secure, Cross Platform

Framework Ventures is seeking a WDK Software Engineer to enhance Tether's open-source toolkit for self-custodial wallets. The role involves technical design and collaboration to build secure applications across platforms. Candidates should have over 5 years of experience in Node.js and JavaScript, with ...

Mathematics & Python Expert Freelance Ai Trainer (San Juan)

Participation is project-based, not permanent employment. What This Opportunity Involves Design original computational mathematics problems that simulate real mathematical research workflows Create problems requiring Python programming to solve (using Numpy, SciPy, Sympy) </li ...

Remote Python Game Developer (Panda3D) for AI Simulations

Join YO IT CONSULTING as a Remote Python Game Developer (Panda3D), contributing to innovative AI training projects. You will design and optimize 3D simulations, collaborate with teams, and ensure cross-platform performance. The ideal candidate has hands-on experience with Panda3D, proficiency in Python ...

Senior API Engineer SDUI & Backend Reliability Lead

TurnKey Tech Staffing is seeking an experienced Backend Developer to lead the design and operation of APIs for Server-Driven UI. In this role, you will own backend services, mentor peers, and enhance system reliability. The ideal candidate has a minimum of 7 years in microservices, strong OOP practices ...

Senior DevOps Engineer: CI/CD, Cloud & Automation

Teladoc Health in San Justo, Argentina is looking for a DevOps Engineer to develop automated solutions and enhance operational improvements in a fast-paced environment. The role involves collaborating with software developers, QA, and system engineers to ensure secure and reliable service delivery. Qua ...

Senior Full Stack Engineer – Auctions Platform (Next.js)

Minutentag in Buenos Aires, Argentina is seeking a full-stack developer to enhance our digital auction and marketplace platform. You'll design and implement features, develop RESTful APIs, and ensure optimal performance while working across both frontend and backend environments. The ideal candidate ha ...

Senior Full Stack Engineer Remote | Angular & .NET

Panoptyc is seeking a versatile Senior Full Stack Engineer to enhance their engineering team. The role emphasizes building high-performance user interfaces in Angular and robust services in .NET (C#). The ideal candidate will thrive on solving integration puzzles, ensuring seamless user experiences for ...

Senior Full Stack Engineer: Angular, Microfrontends & AWS

AYIGROUP en San Fernando, Buenos Aires, busca un/a desarrollador/a Dev PLSQL para unirse a un equipo de alto rendimiento. Se requiere más de 5 años de experiencia fullstack, especialmente en Angular, y manejo de microfrontends. Se ofrece un entorno colaborativo y oportunidades de crecimiento. Los benef ...

Senior Database Reliability Engineer — Remote & Scalable Systems

Sezzle, based in Buenos Aires, Argentina, is looking for a Senior Database Reliability Engineer to enhance their database platform's reliability. This role includes designing and maintaining shared database components, and collaborating with backend teams to optimize database usage. The ideal candidate ...

Senior Front End Engineer | React & React Native

Silver.dev in Buenos Aires seeks a Front-End Engineer to join its dynamic engineering team. This role involves creating impactful web and native applications that improve users' lives. Successful candidates will have at least three years of experience, primarily in React, and a strong understanding of AI tool ...

Senior Full Stack Engineer for Auctions Marketplace

Minutentag is looking for a full-stack developer based in Buenos Aires, San Isidro. You will be responsible for developing and maintaining our digital auction platform, utilizing your skills in both frontend and backend technologies. The ideal candidate will have at least 4 years of experience in softw ...

Senior Full Stack Engineer: Microservices & Fintech APIs

NIR-YU, a digital solutions provider in Buenos Aires, Argentina, is looking for a talented developer skilled in either Java (Spring Boot) or Node.js. Candidates should have experience building microservices, RESTful APIs, and integrating third-party APIs. The ideal applicant will be proficient in datab ...

Senior Ruby Engineer IAM & Security, Global Projects

EPAM Systems is seeking a Senior Ruby Developer to enhance its Identity and Access Management Team in Buenos Aires. The role involves designing and building secure authentication and authorization services while collaborating with integral teams. The successful candidate will possess at least three yea ...

Senior Automation QA Engineer — Build Global Impact

Ciklum is seeking a Senior Automation QA Engineer to join our team in Buenos Aires, Argentina. This role involves collaborating with cross-functional teams and developing automated test scripts. We offer comprehensive company-paid medical insurance, mental health programs, and a tailored education path ...

Remote Senior OT Security Engineer Critical Infrastructure

Strategic Staffing Solutions is seeking a Senior OT Cybersecurity Engineer for a fully remote role. The position focuses on securing critical infrastructure and industrial environments. Key responsibilities include implementing cybersecurity solutions, supporting deployments, and providing post-deploym ...

Senior Ruby Engineer — IAM, Security & Scalable Backend

EPAM Systems is looking for a Senior Ruby Developer to join their Identity and Access Management Team in Buenos Aires. The role involves designing and enhancing critical authentication and authorization services, ensuring high quality and security. The ideal candidate will have expertise in Ruby and fa ...

Remote Senior OT Cybersecurity Engineer (Hands On)

Strategic Staffing Solutions is seeking a 100% Remote Senior OT Cybersecurity Engineer to enhance the security of critical infrastructure and industrial environments. This hands-on role will involve implementing and supporting cybersecurity solutions directly within OT settings, ensuring robust protection aga ...

Remote Senior OT Security Engineer – Industrial Networks

Strategic Staffing Solutions seeks a Remote Senior OT Cybersecurity Engineer in Buenos Aires. This role focuses on implementing security solutions for critical infrastructure and industrial environments. You'll work with global teams on actual deployments, not just designs, and will provide post-deployment su ...

Senior Full Stack Engineer: Microservices & Fintech APIs

NIR-YU, a digital solutions provider in Argentina, is looking for a skilled developer with expertise in Java (Spring Boot) or Node.js. Candidates should have experience building microservices and RESTful APIs, as well as integrating third-party APIs and knowledge of event-driven architecture. Proficien ...

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 successful candidate will contribute to a mission-critical SaaS platform by designing scalable systems, making architectural decisions, and mentoring engineers. E ...

Senior Backend Engineer Attendance Analytics for EduTech

Newsela is seeking a Senior Software Engineer in Argentina to join the EveryDay Labs team. You will design and maintain software components that enhance attendance analytics and student data systems, develop new features, and automate processes. The ideal candidate will have a strong background in soft ...

Senior Backend Engineer — AI Powered Event Platform

Gomry Payments in San Miguel, Buenos Aires, is seeking a backend developer to build user-facing features and enhance database performance. The role offers freedom in processes and focuses on quality with a zero-bugs policy. Ideal candidates will be experienced in backend development with strong databas ...

Senior Ruby Engineer IAM Security & Global Scale

EPAM Systems is seeking a Senior Ruby Developer to join our Identity and Access Management Team in San Isidro, Buenos Aires. The ideal candidate will design and enhance security services, develop reliable Ruby code, and mentor team members. This role offers the opportunity to work on international proj ...

Senior Angular Engineer — Frontend Lead (Angular 18+)

Brightside IT Consulting busca un Frontend Engineer Senior en Buenos Aires con experiencia en Angular 18+. El candidato participará en un proyecto estratégico, contribuyendo al desarrollo y mantenimiento de aplicaciones frontend complejas. Requiere sólido dominio de TypeScript y buenas prácticas en des ...

Senior Red Team Engineer — PenTest & Security (Remote)

Fever España is looking for a cybersecurity expert to join their Offensive Security team. This role involves conducting penetration tests and collaborating with cross-functional teams on security solutions to strengthen Fever's infrastructure. The ideal candidate will have a degree in Computer Science ...

Senior Oilfield Technical Sales Engineer Argentina & LATAM

Rad Hires is looking for a Technical Sales representative to support oilfield operations in Argentina. The role requires building strong relationships with service companies, developing strategic sales plans, and providing technical support. The ideal candidate will have over 10 years of industry exper ...

Senior Red Team Engineer — PenTest & Security (Remote)

Fever España is seeking a cybersecurity expert to join their Offensive Security team. This role involves conducting penetration tests to assess vulnerabilities and collaborating on security solutions to enhance Fever's infrastructure. The ideal candidate will have a degree in Computer Science or a rela ...

Senior Full Stack Engineer: Microservices & Fintech APIs

NIR-YU, a digital solutions provider in Argentina, is looking for a skilled developer. The ideal candidate will have expertise in Java (Spring Boot) or Node.js, experience building microservices, and proficiency in integrating third-party APIs. The role requires a solid understanding of databases such ...

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