Senior Backend Engineer - Scalable Systems (Remote UK)

VulnCheck; West of England; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Unlimited PTO

401k plan

Healthcare coverage

Parental leave

Remote friendly environment

Job summary

VulnCheck is seeking a Senior Software Engineer to design, build, and scale core systems for vulnerability intelligence. You will own services end‑to‑end—from architecture to production—shaping architecture and improving performance while delivering impactful features.

This fully remote role requires proximity to Cheltenham, UK, and collaboration with Product & Engineering teams. You will lead design discussions, write robust code in Python/Go/Java, and mentor engineers, contributing to a

Qualifications

• 5+ years building and scaling backend systems as a software engineer.
• Strong programming skills in Python, Go, Java, etc.
• Experience designing distributed systems and working with microservices.
• Deep understanding of APIs, system design, and AWS cloud infrastructure.
• Experience with data pipelines, ETL, or high‑volume data processing.
• Proven ability to debug and optimize production systems.
• Strong ownership mindset to lead projects independently.
• Excellent communication and cross‑functional collaboration skills.

Responsibilities

• Design and build scalable backend systems, APIs, and data pipelines.
• Own services end‑to‑end, including architecture, development, deployment, and operation.
• Lead technical design discussions and contribute to system architecture decisions.
• Write high‑quality, maintainable code and drive engineering best practices.
• Debug complex production issues and implement long‑term, scalable solutions.
• Improve system performance, reliability, and observability across the platform.
• Partner with Product, Data, and other Engineering teams to deliver features.
• Mentor junior engineers and contribute to engineering culture.
• Participate in incident response and on‑call rotations.

Skills

Backend systems

Python

Go

Java

Distributed systems

APIs & Cloud

Data pipelines

Production debugging

Ownership mindset

Communication

Job description

VulnCheck is seeking a Senior Software Engineer to design, build, and scale core systems for vulnerability intelligence. You will own services end‑to‑end—from architecture to production—shaping architecture and improving performance while delivering impactful features.

This fully remote role requires proximity to Cheltenham, UK, and collaboration with Product & Engineering teams. You will lead design discussions, write robust code in Python/Go/Java, and mentor engineers, contributing to a