Senior Backend Engineer
Role summary by JobGrid
Senior Backend Engineer at xyz-reality: London, United Kingdom; On-site; IT; Back End Engineer. JobGrid adds normalized role facts, source context, and a path to the employer application page so candidates can compare the listing before applying.
- Location and workplace: London, United Kingdom, On-site
- Role classification: IT, Back End Engineer
- Source freshness: checked by JobGrid on 2026-05-28.
- Application path: candidates continue to the employer application page with non-personal referral tags.
About Us
Ready for a challenge and adventure?
At XYZ Reality, we are a well-established, award-winning Series-A startup accelerating toward our next funding round. Our mission is to expand our platform, enhancing features, performance, and scalability while revolutionizing the construction industry.
We are a multi-disciplinary, fast-paced company working across diverse domains, including cloud development, electronics, embedded software/hardware, mechanical design/manufacturing, AI & computer vision, and data science—all powering our BIM Platform.
To drive this mission forward, we are seeking a Backend Engineer with strong Node.js experience to support the development of our growing platform features and APIs. In this role, you will build high-performance, scalable backend services and work closely with our API development, client applications, and data pipeline teams to deliver robust, efficient, and reliable solutions.
Our office is in central London, just a short walk from Angel Station.
Responsibilities
· Design, develop, and maintain scalable backend services using Node.js.
· Write efficient SQL queries and optimize database performance.
· Build and maintain RESTful APIs with best practices for scalability and performance.
· Debug and maintain the existing API codebase.
· Develop and execute unit tests and integration tests to ensure software reliability.
· Conduct performance profiling and stress testing to optimize system responsiveness.
· Maintain clear, structured documentation for backend systems and codebases.
· Collaborate closely with cross-functional teams, including client applications and data pipeline teams.
· Stay adaptable, learning new technologies and contributing to various technical areas as needed.
Required Skills & Experience
· Bachelor’s degree in computer science or a related field.
· Strong Node.js programming skills with experience in backend development.
· Solid experience with relational databases, particularly PostgreSQL.
· Expertise in designing and developing scalable RESTful APIs.
· Strong debugging, troubleshooting, and performance optimization skills.
· Proficiency with Git, including active participation in code reviews.
· Excellent communication skills in both written and spoken English.
Preferred Qualifications
· Experience with Java and Java frameworks (to support legacy migration to Node.js).
· Familiarity with CI/CD pipelines, such as GitHub Actions.
· Knowledge of GraphQL or other API design methodologies beyond REST.
· Experience with Docker and Kubernetes for container orchestration.
· Experience in Test-Driven Development (TDD) and software design patterns.
What We Offer
· A research-driven, innovative environment with opportunities to experiment and grow.
· A collaborative and supportive team culture that values continuous learning and knowledge sharing.
· Exposure to cutting-edge technologies in cloud development and high-performance scalable architectures.
· If you're passionate about solving complex backend challenges and want to be part of an ambitious, fast-growing start-up, apply now! 🚀