Senior Software Engineer / Architect

Spectrum IT Recruitment; England; Hybrid; GBP 65,000 - 75,000; Full time

Job summary

A global tech leader in the United Kingdom is seeking an experienced Senior Software Engineer / Architect to oversee architecture and design for mission-critical systems. This hybrid role allows flexibility, with two days on-site in Southampton. Candidates should possess strong skills in C#, Azure, and related technologies, delivering high-quality code and solving complex challenges. In addition to innovative projects, this position includes competitive compensation and growth opportunities.

Qualifications

• Experience developing applications in C#.
• In-depth knowledge of Azure, ElasticSearch, and Kubernetes.
• Proven experience in architecture ownership.
• Experience in unit testing and code quality disciplines.
• Strong understanding of SOLID principles.
• Experience with maintainable code and source control.
• Knowledge of multi-tenant cloud solutions.
• Understanding of network security, authentication, and authorization.
• Experience with databases using Entity Framework.
• Experience creating RESTful APIs.

Responsibilities

• Owning the architecture and performing design and implementation.
• Leading technical decisions collaboratively.
• Ensuring architecture meets security and scalability requirements.
• Testing work and resolving customer support cases.

Skills

C#

Azure

ElasticSearch

Kubernetes

Unit testing

Code reviews

SOLID principles

Multi-tenant cloud solutions

Network security principles

Entity Framework

RESTful APIs

Tools

DevOps

GIT

Job description

Senior Software Engineer / Architect

C#, Azure, DevOps, ElasticSearch, Kubernetes

Hybrid - 2 days per week on-site in Southampton

Salary: 65,000 - 75,000 + bonus

Are you an experienced Senior Software Engineer looking for your next big challenge? Join a global tech leader where innovation, high performance, and career growth are at the heart of everything they do. This is your chance to make a real impact as a Senior Software Engineer / Architect, working on mission‑critical systems in a cutting‑edge environment.

You will be responsible for:

• Owning the architecture, and carrying out design, implementation and developer‑level test, of UI, server, and interface components, using C#, in on‑premise, multi‑threaded, multi‑server environments.

• Leading technical decisions on architectural direction using a collaborative, team‑based approach.
• Ensuring the architecture takes into account the concerns of security, scalability, compatibility, and maintainability.
• Performing testing of your work, fixing defects, and helping to resolve customer support cases.

Skills Required:

• Solid experience developing applications in C#.
• Azure, ElasticSearch, Kubernetes.
• Owning the Architecture.
• Experience of unit testing, code reviews, and other product quality disciplines.
• Good knowledge of SOLID principles.
• Experience creating maintainable code and using source control solutions such as DevOps, GIT or similar.
• Experience with multi‑tenant cloud solutions.
• Solid understanding of the principles of network security, authentication, and authorization.
• Experience of working with databases using Entity Framework or similar.
• Experience creating RESTful APIs and ensuring API extensibility.

If you have the skills required, then please send your CV to (url removed)

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.