Senior Fullstack Engineer

Blend360

Senior Fullstack Engineer developing modern web applications and AI-powered solutions at Blend. Collaborating with cross-functional teams and optimizing backend performance using Python and React.

Posted 6/6/2026full-timeRemote • 🇺🇾 UruguaySeniorWebsite

Tech Stack

Tools & technologies

AWSCloudEC2PythonReact

About the role

Key responsibilities & impact

Design, develop, and maintain backend (Python/FastAPI) and frontend (React) components of web applications, with a primary focus on backend architecture and performance.
Build and integrate AI-powered features and systems into production applications, collaborating with data science and ML teams as needed.
Collaborate with cross-functional teams to gather requirements and deliver new features end-to-end.
Write clean, scalable, and well-documented code following software development best practices.
Architect and integrate cloud-based solutions using AWS services to ensure reliability and scalability.
Design and maintain RESTful APIs with a focus on performance, security, and maintainability.
Optimize application performance across the stack, ensuring a seamless and high-quality user experience.
Participate in code reviews, providing and receiving constructive feedback to maintain code quality standards.
Troubleshoot, debug, and resolve issues across the full stack in a timely and effective manner.
Stay current with emerging technologies, AI frameworks, and industry trends to continuously improve solutions.

Requirements

What you’ll need

Bachelor's or Master's degree in Computer Science, Software Engineering, or an equivalent field.
Strong proficiency in Python and FastAPI for backend development, including RESTful API design, implementation, and optimization.
Solid hands-on experience with React for frontend development, including component architecture and state management.
Demonstrated experience working with AI systems, LLM integrations, or AI-powered applications.
Practical experience with AWS cloud services (e.g., EC2, S3, Lambda, RDS, or equivalent).
Experience with relational and/or non-relational databases.
Familiarity with version control systems, particularly Git, and collaborative development workflows.
Strong problem-solving skills, attention to detail, and ability to take ownership of complex technical challenges.
Ability to work effectively in agile, cross-functional team environments.
English: Advanced (required for effective communication with global teams).

Benefits

Comp & perks

Every day lunches! (headquarters): Vegetarian, vegan, gluten and sugar free options.
Gourmet meals every Friday with our on-site chef!
⚖️ Flexible working options to help you strike the right balance.
💻 All the equipment you need to harness your talent (Macbook and accessories).
🍎 Snacks and beverages available everyday (headquarters).
🎉 After office events, football, tennis and game nights (headquarters).
⚽ Everyone is welcome to join our football league every Wednesday's and Friday's.
🎱 Challenge your teammates to a pool game and win the office's trophy!
🎾 Tennis courts available for friendly matches.
🎮 Not a sports person? Don't worry, we also have chess championships, game and music nights for you to join!
📚 Learning opportunities: AWS Certifications (we are AWS Partners).
Study plans, courses and other certifications.
English Lessons.
Learn from your teammates on our Tech Tuesdays!
🧭 Mentoring and Development opportunities to shape your career path.
🎁 Anniversary and birthday gifts.
📍 Great location and even greater teammates!

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonFastAPIReactRESTful API designAI systemsLLM integrationsAWSEC2S3Git

Soft Skills

problem-solvingattention to detailownershipcollaborationcommunicationagile methodologycross-functional teamworkcode reviewfeedbacktroubleshooting

Certifications

Bachelor's degree in Computer ScienceMaster's degree in Software Engineering