Back End Developer – AI Infrastructure

About the role

Join Alignerr as a Back End Developer focused on AI infrastructure. You will design, build, and optimise server‑side systems that power data pipelines, model‑serving platforms and high‑traffic microservices for cutting‑edge AI products.

Key responsibilities

• Design, develop and maintain robust back‑end services, APIs and data pipelines.
• Build scalable, high‑performance architecture to support AI training and inference workloads.
• Integrate with databases, message queues, cloud services and third‑party APIs.
• Optimise system performance, reliability and scalability as usage grows.
• Collaborate asynchronously with distributed engineers, researchers and product leads.
• Troubleshoot production issues, conduct code reviews and contribute to architectural decisions.
• Work independently on task‑based and project‑based assignments on your own schedule.

Required profile

• Proficient in one or more back‑end languages such as Python, Go, Java, Node.js or Rust.
• Strong understanding of RESTful API design, microservices and distributed systems.
• Experience with relational or NoSQL databases (e.g., PostgreSQL, MongoDB, Redis).
• Comfortable with cloud platforms (AWS, GCP or Azure) and containerisation (Docker, Kubernetes).
• Self‑motivated, reliable and effective when working asynchronously.

Required skills

• Python
• Go
• Java
• Node.js
• Rust
• RESTful APIs
• Microservices architecture
• Distributed systems
• PostgreSQL
• MongoDB
• Redis
• AWS
• GCP
• Azure
• Git
• CI/CD pipelines
• Docker
• Kubernetes
• Apache Kafka
• Apache Spark
• Airflow
• Serverless architectures
• Authentication and authorization best practices

What we offer

• Fully remote, flexible contract (10–40 hours/week) with hourly pay.
• Opportunity to work on cutting‑edge AI infrastructure alongside leading research labs.
• Freelance autonomy while contributing to technically challenging projects.
• Collaboration with a global network of talented engineers and researchers.