Senior Fullstack Software Engineer (.NET/React)

TL;DR

Senior Fullstack Software Engineer (.NET/React): Developing and maintaining core platform systems including messaging, scheduling, and automation for a US-based product company with an accent on evolving platform capabilities and modernizing architectures. Focus on transitioning to microservices, integrating AI-enhanced development practices, and ensuring system reliability in a multi-repository environment.

Location: Remote

Company

hirify.global is a people-first company that connects top Brazilian talent with innovative U.S. software product companies through staff augmentation and employer-of-record services.

What you will do

• Develop and maintain features across React frontend and .NET/C# backend systems.
• Build and evolve solutions for messaging (SMS, WhatsApp, email) and event-driven workflows.
• Implement scheduling and calendar integrations for platform capabilities.
• Support the transition toward microservices architecture, Kubernetes, and CI/CD pipelines.
• Collaborate in architectural discussions and experiment with AI-driven development approaches.
• Write clean, maintainable, and testable code within a multi-repository environment.

Requirements

• Strong production experience with .NET (C#) and React.
• Experience with relational databases, specifically MS SQL.
• Proven ability to work with complex, existing legacy systems.
• Familiarity with Microservices architecture, CI/CD pipelines, and containerized environments (Kubernetes).
• English: C1 level (written and verbal) required.
• Ownership mindset and ability to handle ambiguity in a distributed team environment.

Nice to have

• Experience with Python backend services.
• Exposure to AWS environments.
• Experience with messaging platforms such as Twilio.
• Experience with event-driven systems or AI-assisted development workflows.

Culture & Benefits

• Remote-first culture with international exposure.
• Company-provided MacBook.
• Free English lessons with native speakers to improve communication skills.
• Access to professional growth via tech talks, chapter meetings, and career guidance.
• Optional access to the Florianópolis headquarters including snacks and wellness perks.
• Candidate referral bonus program.