Senior Fullstack Engineer; Remote, United Kingdom

Position: Senior Fullstack Engineer (Remote, United Kingdom)
## Senior Fullstack Engineer (Remote, United Kingdom)
Apply locations:
Work From Home - UKtime type:
Full time posted on:
Posted Todayjob requisition :
JR-90898

Job Summary:

JOB DESCRIPTION – Senior Fullstack Engineer

Location:

Remote, United Kingdom Division:
Host Engineering Contract

Terms:

Permanent
** THE TEAM
** Our engineering team builds, modernizes, and operates software systems that support reliable, scalable product experiences. We work across product, design, platform, and operations to improve existing systems, ship thoughtful features, and raise the quality of the technology our teams depend on. We are looking for engineers who care about how systems work, how users experience them, and how teams can move faster without sacrificing quality.
** THE JOB
** We are looking for a Senior Developer who combines strong engineering judgment with curiosity, autonomy, and practical execution. This person will help design, build, debug, modernize, and operate production-grade systems across frontend, backend, and infrastructure boundaries.  This role is well suited to a senior engineer who is comfortable working through ambiguity, breaking down complex problems, and making pragmatic technical decisions.

You will be expected to use AI-assisted and agentic coding workflows as part of your day-to-day engineering practice, while remaining accountable for architecture, code quality, correctness, security, maintainability, and production outcomes.
** WHAT YOU WILL BE DOING
*** Design, build, and evolve maintainable software systems that balance product needs, technical quality,    operational reliability, and long-term flexibility.
* Use AI-assisted and agentic coding tools to accelerate discovery, implementation, testing, debugging, and    documentation while applying strong engineering judgment to all outputs.
* Decompose ambiguous product and technical problems into clear options, trade-offs, and implementation    paths.
* Modernize existing systems incrementally, reducing technical debt while preserving reliability and business    continuity.
* Write clean, production-grade code that is readable, testable, and maintainable by other engineers.
* Debug complex issues across application, infrastructure, and operational layers, identifying root causes and    durable fixes.
* Collaborate across frontend, backend, infrastructure, product, design, and operations to deliver thoughtful    end-to-end solutions.
* Bring strong product and UX instincts to technical decisions, helping ensure the software is useful, understandable, and effective for users.
* Improve system reliability, observability, deployment quality, and operational readiness in production environments.
* Lead technical discussions with clarity, explaining architectural choices and trade-offs in simple, practical language.
* Contribute to code reviews, design reviews, and engineering practices that improve team effectiveness.
* Take ownership beyond assigned tasks by identifying risks, improving workflows, and helping the team make better technical decisions.
* Make pragmatic decisions under uncertainty, avoiding both unnecessary complexity and short-term fixes that create avoidable future costs.
** WHAT YOU NEED TO KNOW (or TECHNICAL SKILLS)
** Required Qualifications
* Strong experience using AI-assisted and agentic coding workflows in real engineering work.
* Strong architectural and systems design judgment, including the ability to reason about trade-offs, boundaries, scalability, and maintainability.
* Excellent debugging, problem decomposition, and root-cause analysis skills.
* Experience evolving, refactoring, or modernizing existing systems.
* Ability to write clean, maintainable, production-grade code.
* Strong product and UX instincts, with the ability to connect technical decisions to user outcomes.
* Operational awareness in production environments, including reliability, observability, deployment, incident response, or performance considerations.
* Comfort working across frontend, backend, and infrastructure boundaries.
* High ownership, autonomy, and follow-through in ambiguous environments.
* Ability to communicate technical decisions clearly to engineering and non-engineering partners.

Technical Experience  

Experience with some combination of:
* React or other modern frontend systems.
* Rust, Go, Type Script, or comparable strongly engineered backend ecosystems.
* AWS or comparable cloud infrastructure.
* CI/CD, deployment automation, observability, and operational tooling.
* Distributed systems, APIs, data flows, or platform modernization work.

Preferred Qualifications
* Experience improving developer workflows, engineering standards, or team delivery practices.
* Experience mentoring other engineers through code reviews, design discussions, or technical coaching.
* Experience working in product-minded engineering teams where quality, usability, and reliability all matter.
* Experience modernizing legacy systems through incremental, low-risk changes.
* Familiarity with secure coding…