Backend Engineer (Python + AWS)

Backend Engineer (Python + AWS)

Netrin is a sports technology company building products that improve fitness, lifestyle, and performance. Were now building a D2C product (pre-product stage) at the intersection of health data and AI. If you have strong Python and AWS fundamentals, enjoy owning backend systems end-to-end, and want to be one of the first engineers shaping something new this could be the perfect opportunity for you.

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Responsibilities

• Design, build, and maintain backend APIs and services using Python and AWS-based infrastructure
• Design and implement REST APIs and scalable, fault-tolerant backend systems
• Set up and manage cloud infrastructure compute, storage, databases, and monitoring (AWS: ECS/Lambda, S3, RDS)
• Build async data processing pipelines integrating LLM services
• Design and optimise relational database schemas for structured and semi-structured data
• Implement CI/CD pipelines for reliable and repeatable deployments
• Ensure security best practices encryption, access controls, audit logging
• Integrate enterprise-grade authentication systems (OAuth2, JWT)

Must-Have Requirements

• 46 years of professional experience in backend engineering with Python
• Hands-on production experience with AWS (ECS and/or Lambda, S3, RDS, IAM)
• Strong PostgreSQL skills including schema design and query optimisation
• Experience designing scalable, fault-tolerant systems
• Experience building and maintaining REST APIs
• Hands-on experience with CI/CD pipelines and monitoring systems
• Experience implementing authentication and authorization (OAuth2, JWT)
• Bachelors degree in Computer Science, Software Engineering, or a related field
• Strong problem-solving skills and clear communication

Good-to-Have Requirements

• Experience integrating LLM APIs (preferably Amazon Bedrock) into production systems
• Experience with Retrieval-Augmented Generation (RAG) pipelines, including evaluation and guardrails
• Familiarity with vector databases and embedding models
• Hands-on experience with Terraform or other infrastructure-as-code tools
• Prior work in health-tech, fintech, or domains with strict data handling and compliance requirements (e.g., HIPAA-like systems)

Why Join Netrin?

• Be part of a new team building the future of health in stealth
• Early-stage ownership shape the architecture, dont inherit it
• Work with modern cloud-native infrastructure and AI-first tooling
• Small, highly efficient team with a strong culture of engineering rigor
• Attractive compensation and flexible working conditions

Apply today and be part of something new! Netrin is an equal opportunity employer. We value diversity and encourage applicants from all backgrounds to apply.