Are you an experienced backend engineer with a passion for designing and building scalable systems? Do you thrive on solving complex challenges and collaborating with top talent to deliver transformative software solutions? If so, Celara is the perfect place for you!As a Senior Backend Engineer, you’ll play a critical role in architecting and developing robust web applications that support AI-powered tools. While Python will be your primary language, this role requires a strong engineering foundation and experience with large-scale systems, cloud platforms, and enterprise-grade applications. This is an individual contributor role, where you’ll have the opportunity to work on a cutting-edge platform while gaining exposure to AI technologies, making a real-world impact through your work. Key Qualifications:

5+ years of backend development experience with a strong focus on Python.

Proven expertise in designing and building scalable, high-performance web applications using FastAPI, Flask, or Django.

Strong engineering principles

Hands-on experience with cloud platforms (GCP, AWS, Azure).

Proficiency in system design and third-party integrations.

Familiarity with DevOps practices and tools, including CI/CD pipelines and containerization (e.g., Docker, Kubernetes, Infrastructure-as-code).

Solid understanding of building systems for high availability, performance, and reliability.

Advanced English proficiency (both written and spoken).

Preferred Skills:

Exposure working with streaming protocols, like WebSocket and SSE.

Hands-on experience on Django, and understanding of advanced features is highly valuated

Proven experience in system optimization, including the use of profilers and conducting stress tests. Skills in database and query optimization are also a plus for the role.

Proficient in designing and developing RESTful APIs.

Experience with AI-related platforms or tools, although not mandatory.

Experience with other programming languages such as Java, .NET, or Go (not required but a bonus). 

Responsibilities:

Develop high-performance, scalable APIs and services that integrate seamlessly with front-end and AI systems.

Collaborate with product teams and front-end engineers to define technical requirements and deliver exceptional solutions.

Contribute to DevOps workflows, ensuring smooth deployment, monitoring, and maintenance of applications.

Architect, design, and build backend systems to support AI-powered applications.

Design and implement robust authentication and authorization mechanisms, including third-party integrations.

Optimize system performance and ensure the reliability and scalability of applications.

What We Offer:

Work with a world-class team on cutting-edge AI solutions.

A primarily remote role with a flexible work environment, with occasional visits to our Buenos Aires office (a few times per month) for in-person collaboration.

Competitive compensation aligned with your experience and skills.

Continuous opportunities for learning, growth, and professional development.

Exposure to AI technologies and the chance to work on innovative projects shaping the future of analytics