Staff Engineer in London - So Energy

WorksHub; City Of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading tech company in the UK seeks an experienced backend engineer proficient in Kotlin, Python, and Java. The ideal candidate will have significant experience in designing large-scale backend systems and familiarity with frontend technologies. Responsibilities include ensuring security best practices and contributing to cross-stack discussions. Competitive salary and benefits on offer.

Qualifications

• Significant experience designing and building large-scale backend systems.
• Deep understanding of domain-driven design and modular monoliths.
• Knowledge of security best practices including OAuth, SSO, and secure coding.

Skills

Kotlin/Java, Python, Scala

Domain-driven design systems

Microservices

Distributed systems

Security best practices

React, Vue

Ionic, Swift, Android

GCP stack, Terraform

Kubernetes, Docker, CI/CD

Job description

Our Hiring Process

Our priority is to match the right person to the right role, and we never want salary to be a barrier to applying. Regardless of your current pay, we’ll ask about your salary expectations during the application process, and our Talent Team will have an open, honest conversation.

Skills & Experience

Significant experience designing and building large-scale backend systems (Kotlin/Java, Python, Scala, or other languages). Deep understanding of:

• Domain-driven design systems
• Modular monoliths
• Distributed systems
• Microservices
• Pipelines

Knowledge of security best practices including OAuth, SSO, data protection, and secure coding principles. Familiarity with:

• Frontend frameworks (React, Vue)
• Mobile technologies (Ionic, Swift, Android)

Hands-on experience using or trialling AI coding tools like GitHub. While backend will be your deep specialty, you’ll have the skills to engage meaningfully across the stack:

• Frontend conversations: Vue.js, modern component-driven design, API design for seamless integration
• Infrastructure: GCP stack, Terraform, Kubernetes, Docker, CI/CD