Backend Engineer and Devops Engineer Microservices

Mercor; City Of London; Remote; GBP 80,000 - 100,000; Full time

Job summary

A leading AI lab is seeking an experienced Backend & DevOps Engineer to design and scale microservices infrastructure for AI systems. You will manage cloud infrastructure and collaborate closely with research teams, ensuring high performance and reliability. Candidates should have 3 years of experience in backend engineering or DevOps, with strong skills in Docker, Kubernetes, and cloud environments. This role offers a full-time contract with remote flexibility.

Qualifications

• 3 years of experience in backend engineering and/or DevOps roles.
• Strong understanding of microservices architecture and API design.
• Familiarity with AI/ML infrastructure or large-scale distributed systems.

Responsibilities

• Architect and develop high-performance, fault-tolerant microservices.
• Manage Kubernetes clusters and cloud infrastructure.
• Collaborate with backend and AI teams to optimize system performance.

Skills

Backend engineering

DevOps

Microservices architecture

Go, Python, or Java

Docker

Kubernetes

Cloud environments (AWS / GCP)

Databases (PostgreSQL, MongoDB, Redis)

Monitoring stacks (Prometheus, Grafana, ELK)

Tools

Terraform

Helm

ArgoCD

GitHub Actions

Job description

Mercor is hiring on behalf of a leading AI lab for an experienced Backend & DevOps Engineer to design, build, and scale microservices-based infrastructure that powers next‑generation AI systems. You’ll own both core backend services and infrastructure automation, ensuring distributed systems are fast, reliable, and secure. This position blends software engineering, DevOps, and system design, working closely with research and engineering teams to deliver production‑grade scalable AI infrastructure.

Responsibilities

• Architect and develop high‑performance, fault‑tolerant microservices.
• Build and maintain CI/CD pipelines, deployment workflows, and infrastructure‑as‑code.
• Manage Kubernetes clusters, cloud infrastructure (AWS / GCP), and container orchestration.
• Implement monitoring, observability, and security best practices.
• Collaborate with backend and AI teams to optimize system performance and reliability.
• Continuously improve automation, deployment speed, and operational efficiency.

Requirements

• 3 years of experience in backend engineering and/or DevOps roles.
• Strong understanding of microservices architecture and API design.
• Proficiency in Go, Python, or Java.
• Hands‑on experience with Docker, Kubernetes, and cloud environments (AWS / GCP).
• Familiarity with Terraform, Helm, ArgoCD, or GitHub Actions.
• Experience with databases (PostgreSQL, MongoDB, Redis) and message queues (Kafka, RabbitMQ, NATS).
• Solid grasp of monitoring stacks (Prometheus, Grafana, ELK) and CI/CD principles.

Bonus Points

• Experience in AI/ML infrastructure or large‑scale distributed systems.
• Contributions to open‑source DevOps or backend frameworks.
• Knowledge of GitOps, serverless, or edge computing.

Pay & Work Structure

You’ll be classified as an hourly contractor to Mercor.

Paid weekly via Stripe Connect based on hours logged.

Remote and flexible working style.

Employment Type

Full Time

Vacancy

1