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Full Stack DevelopmentRemote

Senior Fullstack Developer

Opus Recruitment Solutions Ltd - Recruiter

London, UK, ๐Ÿ‡ฌ๐Ÿ‡ง United KingdomContract - Senior (4-7 years)0 applicantsCloses Aug 8, 2026

Salary

GBP 117,000 - 136,500 / year

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Job description

Job details

  • Location: London, UK
  • Work mode: Remote
  • Employment type: Contract (Not an internship)
  • Salary: GBP 117,000 - 136,500 per year

Role overview

Opus Recruitment Solutions Ltd is looking for a Senior Fullstack Developer to join a growing engineering team in London, UK. In this remote freelance position, you will be responsible for delivering scalable, high-performance digital products used by thousands of customers. This role is ideal for an experienced engineer who enjoys working across the entire technology stack to build modern user experiences and robust backend services.

Job details

This is a Full-time freelance contract based in London, UK, operating as a fully Remote role. This position is not an internship. The salary range for this role is 117,000 GBP to 136,500 GBP.

Responsibilities

  • Develop and maintain scalable, high-performance digital products for a large customer base.
  • Build and optimize modern user interfaces to enhance the overall customer experience.
  • Design and implement robust backend services and server-side logic.
  • Collaborate with the engineering team to evolve the product architecture and technical strategy.
  • Ensure code quality through rigorous testing and peer code reviews.

Requirements

  • Proven experience as a Senior Fullstack Developer with a strong portfolio of delivered products.
  • Expertise in developing scalable web applications and high-performance backend systems.
  • Proficiency in modern frontend frameworks and backend programming languages.
  • Ability to work independently in a remote environment while maintaining team alignment.
  • Strong understanding of software design patterns and system architecture.

Benefits

  • Competitive freelance day rate or annual salary range.
  • Full remote work flexibility.
  • Opportunity to work on high-traffic digital products.

Keywords

Fullstack DevelopmentScalable ArchitectureBackend ServicesFrontend EngineeringAPI DesignSoftware Engineering