Senior Software Engineer

Omnis Partners; England; Hybrid; GBP 103,500 - 126,500; Full time

Job summary

A high-growth technology organization in the UK seeks a Senior Software Engineer (.NET) to join their Data & AI team. In this hybrid role, you will develop scalable backend services and data pipelines that turn transactions into valuable insights. Ideal candidates will have a strong systems thinking mindset, excellent knowledge of data modelling, and a passion for analytics. Join a company committed to innovative AI-driven solutions in a rapidly evolving sector.

Qualifications

• Experience in developing .NET backend services and APIs.
• Knowledge of data modelling and performance tuning.
• Experience with data pipelines, either streaming or batch processing.

Responsibilities

• Build and maintain .NET backend services and APIs.
• Develop and optimise SQL/NoSQL data models for high-volume data.
• Implement reliable data pipelines and event-driven systems.

Skills

Systems thinker mindset

Data modelling

Performance tuning

Data pipelines

CI/CD

Passion for data and analytics

Tools

.NET

SQL/NoSQL

AWS

GCP

Azure

Kafka

gRPC

Job description

Senior Consultant - Data Engineering & Infrastructure for AI

Senior Software Engineer (.NET)

Up to £115k + Benefits | London | Hybrid

Omnis Partners are partnering with a high-growth technology organisation that is redefining how merchants leverage data, analytics, and AI to understand performance and accelerate revenue growth.

We’re looking for a Senior Software Engineer (.NET) to join the central Data & AI team. You’ll build scalable backend services, APIs, and data pipelines that transform millions of transactions into actionable insights for merchants. This is a greenfield opportunity to shape systems that scale, drive AI-enabled analytics, and make a real impact on the business.

What You’ll Do

• Build and maintain .NET backend services and APIs
• Develop and optimise SQL/NoSQL data models for high-volume data
• Implement reliable data pipelines and event-driven systems
• Collaborate with product, data, and engineering teams to deliver actionable insights
• Contribute to scalable, secure, and maintainable architecture

What You’ll Bring

• A 'systems thinker' mindset. Understand understands how the entire system works, how its parts interact, and how changes in one area can affect others. Technical skill with strategic, big-picture thinking
• Knowledge of data modelling, performance tuning, SQL/NoSQL
• Experience with data pipelines, streaming, or batch processing
• Familiarity with CI/CD, automated testing, and version control
• Passion for data, analytics, and AI-driven problem solving

Nice to Have: Cloud (AWS, GCP, Azure), Kafka/gRPC, React, Infrastructure as Code, ML/data processing experience

Why Join?

• Work on greenfield data and AI initiatives
• Build scalable systems for millions of transactions
• Influence product and architecture decisions
• Join a rapidly growing company with ambitious plans

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Information Technology