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Senior Solutions Architect

Job in London, Greater London, W1B, England, UK
Listing for: Holt Executive
Full Time position
Listed on 2026-10-27
Job specializations:
  • Software Development
    Full Stack Developer, Software Architect, Cloud Engineer - Software, Backend Developer
Job Description & How to Apply Below
A global technology organisation is seeking an experienced Senior Solutions Architect to help shape and develop a suite of data-driven software platforms that support commercial operations, customer engagement and business growth.

This is a hands-on technical leadership role combining software architecture, full-stack development, cloud infrastructure and emerging AI technologies. You’ll help define the architecture of web applications, automated document generation systems and cloud-based platforms, making key technical decisions from initial design through to production deployment.

Working within a small, collaborative team, you’ll share technical ownership of the platform, mentor engineers and help evolve successful early-stage solutions into scalable, enterprise-grade applications.

The role offers the opportunity to influence technology strategy while remaining closely involved in coding, prototyping and delivering practical solutions to real business challenges.

Key Responsibilities

Lead the architecture and development of scalable, multi-component software applications across the full stack.
Design and implement backend services, APIs, frontend interfaces and integrations between enterprise systems.
Develop production applications using Python, Type Script and modern web technologies.
Architect cloud-based solutions using AWS services, including Lambda, ECS/Fargate, S3 and API Gateway.
Design and manage infrastructure using Terraform, Docker and modern CI/CD pipelines.
Evaluate new technologies through proof-of-concepts and make informed architectural recommendations.
Explore and implement AI-powered capabilities, including LLM integrations, agent frameworks and tool-augmented workflows.
Optimise application performance, reliability, security and maintainability across high-volume data environments.
Work closely with product, analytics, data engineering and commercial stakeholders to translate business needs into technical solutions.
Define integration patterns, authentication and authorisation approaches, API contracts and scalable system architectures.
Support the evolution of early-stage applications into robust platforms suitable for enterprise deployment.
Provide technical guidance, mentor engineers and promote software engineering best practices.
Essential Requirements

Extensive Python development experience, building and maintaining production applications.
Strong AWS experience, particularly with Lambda, ECS/Fargate, S3 and API Gateway.
Proven experience deploying and managing containerised applications using Docker.
Strong SQL skills and experience working with data warehouses.
Hands-on experience with Infrastructure as Code, particularly Terraform.
Proficiency with Git, CI/CD pipelines and modern software delivery practices.
Demonstrable experience designing and delivering multi-component software systems, from architecture through to production.
Experience making architectural decisions and balancing technical trade-offs in a fast-paced environment.
Strong problem-solving skills and the ability to communicate technical decisions to both technical and non-technical stakeholders.

Desirable Experience

Modern web development using Next.js, React and Type Script.
Google Cloud Platform services, particularly Big Query and Cloud Run.
Enterprise authentication and authorisation, including SSO, SAML, OAuth and role-based access control.
Designing and optimising applications that process large datasets erience with B2B SaaS platforms, CRM systems or sales enablement tools.
Scaling minimum viable products into enterprise-grade applications.
Agile development methodologies and tools such as Jira.
Full-stack development spanning cloud infrastructure, backend services and frontend interfaces.
Mentoring…
Position Requirements
10+ Years work experience
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