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MillTech

Back End Engineer

MillTech

. Develop back-end web application services .

Posted 9/15/2026full-timeLondon • United KingdomMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in back-end web application development using Node.js and TypeScript, with a strong focus on APIs, micro-service architecture, and cloud-native solutions. Proven ability to integrate new technologies and improve existing platforms while fostering a culture of engineering excellence.

Highest-signal resume keywords
Node.jsTypeScriptMicro-Service ArchitectureDistributed Messaging SystemsCloud-Native Solutions

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Back-End Web Application DevelopmentAPI DevelopmentEvent-Driven ArchitectureIaaCCoding Agents
Soft Skills
Good Spoken and Written EnglishPersonal Honesty and Integrity
Tools & Technologies
AWSSQSRabbitMQKafkaAI Tools
Industry Keywords
FX Financial SystemsCash ManagementInterest Rate Financial Systems

Tech Stack

Tools & technologies
AWSCloudJavaScriptKafkaNode.jsRabbitMQTypeScript

About the role

Key responsibilities & impact
  • Develop back-end web application services
  • Contribute to architecture decisions
  • Discover and integrate new technologies
  • Support and maintain the codebase
  • Use AI tools across the development workflow and share useful techniques with colleagues
  • Help embed a culture of engineering excellence and continuous improvement
  • Work within a cross-functional product team alongside senior engineers, product managers, designers, engineers, QA, and domain experts
  • Iteratively refine and deliver solutions aligned with customer needs and internal architecture
  • Improve the existing platform, identify gaps, and drive solutions balancing speed, reliability, and long-term sustainability

Requirements

What you’ll need
  • Graduate education level
  • 5+ years of professional work experience as a back-end engineer
  • Strong understanding of Node.js and TypeScript
  • Strong understanding of modern web application development, including APIs, services, architecture, and security
  • Experience with distributed messaging systems such as SQS, RabbitMQ, or Kafka
  • Experience with event-driven, micro-service architecture
  • Ability to independently gain knowledge and use new frameworks
  • Comfortable using AI tools in the development workflow
  • Good spoken and written English
  • High degree of personal honesty and integrity
  • Experience building FX, Cash Management, or Interest Rate financial systems is an additional skill
  • Experience developing cloud-native solutions in AWS is strongly valued but not essential
  • Experience with IaaC is an additional skill
  • Experience with Coding Agents and Context Engineering Practices is an additional skill

Benefits

Comp & perks
  • A competitive salary with annual reviews
  • 25 days’ paid annual leave plus an additional day per year of service
  • Excellent staff development and training opportunities
  • Flexible working arrangements including remote working
  • Medical insurance
  • Dental insurance
  • EV Scheme and Cycle to work scheme
  • Enhanced maternity and paternity leave
  • 1 day off for charity work per quarter
  • Support with professional development
  • Opportunities to be involved in key projects
  • Exposure to challenges that may not be offered in a larger organisation