UK Remote Job – Backend Engineer, Node.js, TypeScript at Nexoya

EasyInfoBlog.com LLC; United Kingdom; Remote; GBP 70,000 - 110,000; Full time

Job summary

Nexoya is seeking a Backend Engineer in the United Kingdom with remote work options to help build scalable backend services, API integrations and AI-powered features for its marketing optimization platform. You will own backend components from design through deployment, leveraging Docker, Kubernetes and Azure in a modern cloud environment.

The role emphasizes Node.js/TypeScript, GraphQL API design, data ingestion systems and robust data processing using MySQL and RabbitMQ, with a strong focus on

Qualifications

• 3+ years backend engineering experience with Node.js and TypeScript.
• Strong API design experience using GraphQL or REST.
• Practical experience with MySQL and message brokers.
• Experience deploying services with Docker, Kubernetes and a major cloud platform; Azure preferred.

Responsibilities

• Develop, test, deploy and maintain backend applications and services.
• Design and evolve GraphQL APIs and integrations with advertising platforms.
• Build and maintain data ingestion pipelines and message-driven services.
• Implement AI and agent-based capabilities using structured outputs, retrieval and tool calling.
• Monitor production services and improve reliability, performance and maintainability.
• Conduct code reviews and contribute to engineering standards and documentation.
• Collaborate on technical decisions and communicate design trade-offs.
• Participate in internal support rotations and resolve technical issues.

Skills

Node.js

TypeScript

Fluency in English

GraphQL

REST APIs

MySQL

RabbitMQ

Docker

Kubernetes

Azure

Tools

Docker

Kubernetes

Azure

GraphQL

REST

MySQL

RabbitMQ

Job description

Job Title: Backend Engineer
Employer: Nexoya
Job Type: Remote
Location: United Kingdom
Salary/Rate: Not Specified
UK Visa Sponsorship: Not Available

This Backend Engineer role focuses on building scalable backend services, API integrations and AI-powered features for Nexoya’s marketing optimisation platform. It offers end-to-end engineering ownership in an AI-first environment, with remote work available within the European Economic Area (EEA).

Description

• Build and maintain backend services using Node.js and TypeScript.
• Develop GraphQL APIs, advertising platform integrations and data ingestion systems.
• Design and deliver LLM- and agent-powered features, including an in-app AI assistant.
• Own backend features from design through deployment to production.
• Deploy and operate services on Azure cloud using Docker and Kubernetes.
• Build reliable data-processing systems using MySQL and RabbitMQ.
• Maintain clear API schemas, stable contracts and reliable integrations.
• Implement AI evaluation, monitoring, retrieval, tool calling and safety guardrails.
• Improve the agent framework, testing practices, code reviews and technical documentation.
• Participate in architectural decisions and rotating internal support duties.

Responsibilities

• Develop, test, deploy and maintain backend applications and services.
• Design and evolve GraphQL APIs and integrations with advertising platforms.
• Build and maintain data ingestion pipelines and message-driven services.
• Implement AI and agent-based capabilities using structured outputs, retrieval and tool calling.
• Monitor production services and improve reliability, performance and maintainability.
• Conduct code reviews and contribute to engineering standards and documentation.
• Collaborate with colleagues on technical decisions and communicate design trade-offs.
• Participate in internal support rotations and resolve technical issues.

Requirements

• At least three years of backend engineering experience with Node.js and TypeScript.
• Strong API design experience using GraphQL or REST.
• Practical experience with MySQL and message brokers.
• Experience deploying services with Docker, Kubernetes and a major cloud platform; Azure is preferred.
• Strong problem-solving skills and an interest in discussing technical trade-offs in writing.
• Commitment to producing clean, maintainable and well-tested code.
• Fluency in English.
• Desirable: Experience with Google Ads, Meta advertising APIs or marketing attribution.
• Desirable: Production experience with AI, LLMs, agents, Anthropic/OpenAI APIs, MCP or retrieval-augmented generation (RAG).
• Desirable: LLM evaluation, observability, data pipelines or AI coding tools such as Claude Code.
• Additional advantage: German language proficiency.