Back end Engineer

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Back end Engineer in Brazil.

This role offers the opportunity to join a fast-growing, AI-driven technology company building high-scale systems used by global brands and millions of end users worldwide. You will work on backend systems that demand extreme performance, low latency, and high availability across distributed architectures. The environment is highly technical and collaborative, bringing together experienced engineers focused on solving complex scalability and data challenges. You will contribute directly to the development of AI-powered features, real-time messaging systems, and large-scale data infrastructure. This is a high-impact position where your work will directly influence product performance, user experience, and system reliability. It is ideal for engineers who enjoy working in fast-paced environments and tackling deep technical challenges at scale.

Accountabilities:

• Design, develop, and maintain highly scalable backend services powering real-time and AI-driven applications used by millions of users globally.
• Build and optimize APIs and distributed systems with a strong focus on performance, low latency, and reliability.
• Contribute to the development of AI agents, RAG pipelines, and LLM-based architectures integrated into production systems.
• Work with real-time messaging systems capable of supporting massive concurrency and high-throughput traffic.
• Participate in system design and architecture decisions involving sharding, distributed databases, and high-availability patterns.
• Collaborate with product and engineering teams to ship new features and improve existing systems’ performance and scalability.
• Ensure code quality through testing practices and engineering standards, contributing to a culture of technical excellence.

Requirements:

• 3+ years of backend engineering experience, ideally in high-traffic and high-performance environments.
• Strong expertise in Node.js and TypeScript.
• Solid experience building REST APIs and working with document databases such as MongoDB, AWS DocumentDB, or similar.
• Hands-on experience with testing methodologies such as TDD, BDD, or ATDD.
• Familiarity with distributed systems, real-time applications, and scalable backend architectures.
• Experience with AWS services or similar cloud environments is highly desirable.
• Nice to have: experience with Golang or other statically typed languages (Java, C#, Go).
• Nice to have: knowledge of SQL databases, React, and functional/object-oriented programming paradigms.
• Strong curiosity for AI technologies, LLMs, and agent-based systems is a plus.
• Problem-solving mindset, autonomy, and ability to thrive in fast-paced startup environments.

Benefits:

• Competitive salary and benefits package.
• 100% remote work within Brazil.
• 4 weeks of paid time off.
• Learning and development budget to support continuous growth.
• Opportunity to work on cutting-edge AI systems used at global scale.
• Exposure to high-performance distributed systems and modern cloud infrastructure.
• Collaborative, multicultural, and fast-paced engineering environment.
• Strong work-life balance culture with a focus on employee well-being.

How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best!  Why Apply Through Jobgether?    Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.     #LI-CL1