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Messa S.p.A. logo

Senior Full Stack Engineer

Job Overview

Location

Argentina

Job Type

Full-time

Category

Software Engineering

Date Posted

December 11, 2025

Full Job Description

đź“‹ Description

  • • Own the full lifecycle of product features—from whiteboard sketch to production deployment—while setting architectural direction for a fast-growing platform used by thousands of teams.
  • • Architect and deliver pixel-perfect, responsive React interfaces that feel native on desktop, tablet, and mobile, leveraging TypeScript, modern CSS-in-JS, and accessibility best practices to ensure every user interaction is smooth and inclusive.
  • • Design and evolve RESTful and GraphQL APIs in Node.js or Python that power real-time collaboration, AI-driven workflows, and high-throughput data processing, all while maintaining sub-100 ms latency at global scale.
  • • Embed state-of-the-art AI agents (LLMs, retrieval-augmented generation, fine-tuned models) directly into customer-facing features—think smart drafting, contextual search, and automated task orchestration—so users get superpowers without leaving the app.
  • • Champion reliability: instrument code with OpenTelemetry, set SLOs/SLAs, build canary pipelines, and lead incident retrospectives to keep uptime above 99.9 % and MTTR under 15 minutes.
  • • Collaborate daily with product managers, designers, and data scientists in short, focused sprints; run design reviews, give thoughtful PR feedback, and pair program to raise the collective bar for code quality and user empathy.
  • • Mentor mid-level and junior engineers through architecture deep dives, lunch-and-learn sessions, and career-growth plans, fostering a culture of curiosity, psychological safety, and continuous learning.
  • • Contribute to open-source initiatives that surround our stack—whether it’s upstream fixes to React Query, new ESLint rules, or internal tooling—so the wider community benefits from the patterns we pioneer.
  • • Explore green-field initiatives such as browser extensions that surface contextual AI insights inside Gmail & Slack, or lightweight desktop wrappers (Electron/Tauri) for power users who live outside the browser.
  • • Optimize build and deploy pipelines: Docker multi-stage builds, GitHub Actions, Terraform-driven infrastructure on AWS, and feature-flag rollouts that let us ship to prod multiple times a day with zero downtime.
  • • Keep security front-of-mind: threat-model new features, run automated dependency scanning, and partner with our security lead to maintain SOC 2 and ISO 27001 compliance without slowing delivery.
  • • Translate customer feedback into actionable engineering tasks—join user interviews, analyze product analytics, and iterate rapidly so that every release delivers measurable delight and business impact.

🎯 Requirements

  • • Expert-level proficiency in React and modern JavaScript/TypeScript with a portfolio of shipped, user-facing features.
  • • Strong experience designing, building, and maintaining RESTful or GraphQL APIs in Node.js, Python, or similar server-side stacks.
  • • Demonstrated success incorporating AI/LLM agents or workflows into production software, including prompt engineering and model fine-tuning.
  • • Solid track record of owning production systems: monitoring, alerting, debugging, and achieving high availability targets.
  • • Nice to have: hands-on experience building browser extensions or desktop applications with Electron, Qt, or Tauri.
  • • Nice to have: familiarity with AWS (or equivalent) cloud services, containerization with Docker, and infrastructure-as-code practices.

🏖️ Benefits

  • • Competitive, top-of-market salary paid in USD plus meaningful equity in a high-growth, well-funded startup.
  • • Fully remote-first culture with flexible hours; work from anywhere in Argentina—or the beach—while staying connected through quarterly off-sites.
  • • Annual learning & development stipend (courses, conferences, books) plus dedicated “innovation Fridays” to hack on passion projects.
  • • Premium health, dental, and vision coverage for you and your family, plus subsidized gym memberships and mental-wellness programs.

Skills & Technologies

JavaScript
TypeScript
React
AWS
Docker
Full Stack
Senior
Onsite
Remote

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About Messa S.p.A.

Messa S.p.A. is an Italian specialist in industrial automation and process control systems for the pharmaceutical, biotechnology and fine-chemical sectors. The company designs, manufactures and integrates isolators, RABS, filling lines, sterilisation equipment and complete turnkey plants, complying with GMP, FDA and ATEX standards. Services cover conceptual engineering, validation, qualification, after-sales support and Industry 4.0 digital solutions, enabling clients to achieve sterility, containment and productivity targets. Founded in 1974 and headquartered near Milan, Messa operates globally with subsidiaries and partners across Europe, Asia and the Americas.

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