Startup jobs in Brazil

Senior Software Engineer (Python & AI/ML)

Company: GTG LLC

Company Stage: Startup / Growth-Stage

Location: Remote

Experience Level: Senior (7+ years)

GTG LLC is a growing startup building intelligent, scalable software solutions. We are seeking a Senior Software Engineer with deep expertise in Python and AI/ML engineering, who is also comfortable operating across the full stack.

This role is ideal for someone who enjoys ownership, moving fast, and solving complex technical problems in an early‑stage environment. You will work closely with founders and key stakeholders to design, build, and scale backend systems, AI‑driven services, and modern web applications.

• Design, develop, and maintain backend services using Python and frameworks such as Flask, Django, and FastAPI
• Build and integrate AI/ML solutions, including model deployment, inference pipelines, and data processing workflows
• Architect and maintain RESTful APIs with strong performance, scalability, and reliability
• Collaborate on frontend development using modern JavaScript frameworks such as React, Next.js, Angular, or Vue
• Contribute to overall system architecture, technical decisions, and engineering best practices
• Implement and maintain CI/CD pipelines to ensure reliable deployments and high code quality
• Work across the full product lifecycle, from early design and prototyping to production support
• Identify technical gaps and proactively propose and implement solutions

• 7+ years of professional experience as a Software Engineer or similar senior‑level role
• C1 or higher English proficiency (mandatory) — strong verbal and written communication skills
• Deep expertise in Python and backend development
• Hands‑on experience with Flask, Django, and/or FastAPI
• Strong background in AI/ML engineering, including production‑level model integration and deployment
• Proficiency with modern JavaScript frameworks (React, Next.js, Angular, or Vue)
• Cloud experience with AWS or Azure (required)
• Experience with CI/CD pipelines, version control, and production deployment workflows
• Strong problem‑solving skills and ability to work independently in a fast‑paced startup environment

• Experience with Java or C#, or proficiency in more than one backend programming language
• Experience with GCP in addition to AWS or Azure
• Prior experience working in early‑stage or fast‑moving startups

• Opportunity to play a key technical role in a growing startup
• High level of ownership and influence over architecture and product direction
• Fully remote and flexible work environment
• Competitive compensation, based on experience and skill level