Senior Backend Engineer - Build Scalable, Reliable APIs

OLR Holdings Ltd trading as DFYNE; Uddingston; On-site; GBP 65,000 - 90,000; Full time

Job summary

DFYNE is seeking a Senior Backend Engineer to own and scale backend platforms, delivering reliable APIs and robust systems. You’ll work closely with Product, Engineering and Operations to raise technical standards and drive architectural decisions.

The role emphasizes ownership, proactive problem-solving and delivering business-critical software in a fast-growing UK company. You’ll contribute to incident response and mentoring while improving observability and performance.

Qualifications

• Significant commercial experience as a Backend Engineer with ownership of production systems.
• Strong TypeScript or Python development experience.
• Experience building and operating production systems at scale.
• Strong understanding of distributed systems and API design.
• Experience working with relational databases and performance optimisation.
• Experience working within cloud environments, ideally Google Cloud Platform.
• Strong debugging and problem-solving capabilities.
• Experience supporting production services and operational environments.
• Excellent communication and stakeholder management skills.
• Proven ability to deliver business-critical software.

Responsibilities

• Design, develop and maintain scalable backend services and APIs.
• Own critical production systems and ensure reliability, performance and maintainability.
• Take ownership of existing platforms and services, gaining a deep understanding of how they operate and identifying opportunities to improve reliability, performance and maintainability.
• Troubleshoot and resolve complex technical and operational issues.
• Participate in incident response and post-incident learning activities.
• Support architectural decisions that improve scalability and resilience.
• Collaborate with Product, Engineering and Operational stakeholders.
• Contribute to engineering standards, code review practices, release discipline and software delivery best practice.
• Mentor less experienced engineers and support team development.
• Improve observability, monitoring and operational visibility.
• Identify and address technical debt and system risks.
• Support integrations with third-party services, logistics partners and business systems.
• Contribute to continuous improvement across engineering processes.

Skills

Backend ownership

TypeScript

Python

Distributed systems

API design

SQL databases

Cloud (GCP)

Debugging skills

Production support

Stakeholder mgmt

Software delivery

Tools

Terraform

Next.js

tRPC

FastAPI

GCP

Job description

DFYNE is seeking a Senior Backend Engineer to own and scale backend platforms, delivering reliable APIs and robust systems. You’ll work closely with Product, Engineering and Operations to raise technical standards and drive architectural decisions.

The role emphasizes ownership, proactive problem-solving and delivering business-critical software in a fast-growing UK company. You’ll contribute to incident response and mentoring while improving observability and performance.