Senior Backend Engineer

83zero Ltd; United Kingdom; Remote; GBP 70,000 - 80,000; Full time

Job summary

A leading tech company in the UK is seeking a Senior Backend Engineer to design and maintain high-performance backend services. With a focus on performance, scalability, and reliability, the role involves mentoring junior engineers and collaborating across teams. The ideal candidate will have over 5 years of backend experience, including proficiency in Go, and a solid understanding of API design and database optimisation. This position offers a fully remote work environment with a competitive salary between £70,000 and £80,000 depending on experience.

Benefits

Fully remote working environment

Competitive salary

Qualifications

• 5+ years of backend engineering experience, including 3+ years with Go.
• Strong experience with RESTful API design and distributed systems.
• Solid understanding of SQL/NoSQL databases and performance optimisation.
• Excellent communication, problem-solving, and mentoring skills.

Responsibilities

• Design, build, and maintain high-performance backend services using Go.
• Develop and optimise RESTful APIs that power the platform.
• Lead architecture and implementation strategy discussions.
• Mentor junior engineers and contribute to best practices.

Skills

Backend engineering experience

RESTful API design

Distributed systems

SQL databases

NoSQL databases

Agile methodologies

Communication skills

Job description

Overview

Job Title: Senior Backend Engineer
Location: Fully Remote (UK)
Salary: 70,000 - 80,000 per annum (DOE)

Are you a seasoned Backend Engineer with a passion for building scalable, high-performance systems? We're hiring a Senior Backend Engineer to join a cutting-edge UK-based tech company that's redefining how organisations manage distributed systems at scale.

About the Role

As a Senior Backend Engineer, you\'ll take ownership of critical backend services, designing and maintaining distributed systems with a strong focus on performance, scalability, and reliability. You\'ll lead technical discussions, mentor junior engineers, and collaborate across teams to deliver robust, secure, and efficient solutions.

Key Responsibilities

• Design, build, and maintain high-performance backend services using Go.
• Develop and optimise RESTful APIs that power the platform and integrations.
• Lead architecture and implementation strategy discussions.
• Optimise system and database performance (schema design, query tuning, etc.).
• Ensure backend services meet security, compliance, and reliability standards.
• Mentor junior engineers and contribute to best practices and documentation.
• Collaborate with QA, DevOps, Product, and Technical Services teams.
• Stay current with emerging technologies and industry trends.

What We're Looking For

• 5+ years of backend engineering experience, including 3+ years with Go.
• Strong experience with RESTful API design and distributed systems.
• Solid understanding of SQL/NoSQL databases and performance optimisation.
• Experience with RBAC, auditing, and secure system design.
• Familiarity with Agile/Scrum methodologies and Linux-based environments.
• Excellent communication, problem-solving, and mentoring skills.
• Bonus: Knowledge of virtualization, storage systems, or networking protocols.

Why Join?

• Fully remote working environment.
• Competitive salary between 70,000 - 80,000 (depending on experience).
• Work on complex, high-impact systems with a talented and collaborative team.
• Be part of a company pushing the boundaries of backend engineering and infrastructure