Senior Full-Stack Engineer

US Company is searching for a Senior Full-Stack Engineer to join an innovative product team developing an AI-powered SaaS platform. This is an exciting opportunity to work with modern cloud technologies, Large Language Models (LLMs), and scalable web applications in a distributed international team. Full-time, official contract, remote work, and flexible schedule.

Brief project description:
The product is SaaS, which enables businesses to automate and enhance customer communications through AI-powered workflows and modern communication technologies.

Responsibilities:

• Design, develop, and maintain end-to-end product features across frontend and backend.
• Build scalable backend services using Python and Node.js.
• Develop responsive, intuitive, and accessible user interfaces using React, Vue.js, or similar modern frontend frameworks.
• Collaborate with Product and Design to deliver high-quality user experiences.
• Integrate LLM APIs and AI-powered capabilities into production applications.
• Build, deploy, and maintain applications and cloud infrastructure on AWS.
• Develop and maintain automated unit, integration, and end-to-end tests.
• Participate in architecture discussions, code reviews, sprint planning, and technical decision-making.
• Troubleshoot production issues and continuously improve software quality, performance, and reliability.
• Collaborate closely with engineers across the team, contributing wherever needed to support successful product delivery.

Required skills (must have):

• 7+ years of professional software engineering experience, including significant experience as a Full-Stack Engineer.
• Strong backend development experience with Python and/or Node.js.
• Strong experience with React, Vue.js, or similar modern frontend frameworks.
• Experience designing and developing REST APIs.
• Experience building and deploying applications on AWS.
• Experience working with LLM APIs or AI-powered applications.
• Experience with automated testing frameworks and modern development practices.
• Excellent spoken and written English.
• Ability to work with several hours of overlap with US business hours.

Would be considered as a plus:

• Experience with PostgreSQL.
• Experience with Twilio or other communications platforms.
• Experience working on enterprise SaaS products.
• Experience working with distributed international teams.
• Experience with Agile/Scrum development methodologies.

Work conditions:

• 100% remote work.
• Full-time (40 hours per week).
• Official contract: salary, sick-leave days, holidays, vacations.
• Flexible schedule with overlap with US business hours.

Interviewing / Hiring process:
Step 1 - preliminary interview (main questions) - 45 mins
Step 2 - internal technical interview - 60 mins
Step 3 - technical interview with Team Leader - 60 mins