Senior Software Engineer

Omnis Partners; England; Hybrid; GBP 95,000 - 115,000; Full time

Job summary

A high-growth technology organisation is looking for a Senior Software Engineer (.NET) to join their Data & AI team in London. The successful candidate will be responsible for building scalable backend services, developing data models, and implementing data pipelines that transform vast amounts of data into actionable insights. This position offers a greenfield opportunity to shape systems and influence product and architecture decisions. With a focus on data and AI initiatives, this role is perfect for those who are passionate about problem-solving in a fast-paced environment.

Qualifications

• Experience with SQL and NoSQL data models for high-volume data.
• Knowledge of data pipelines, streaming, or batch processing.
• Familiarity with CI/CD processes and version control systems.

Responsibilities

• Build and maintain .NET backend services and APIs.
• Develop and optimise data models for scalability.
• Implement reliable data pipelines and event-driven systems.
• Collaborate with teams to deliver actionable insights.
• Contribute to scalable architecture.

Skills

Data modelling

Performance tuning

SQL

NoSQL

Data pipelines

Automated testing

Version control

Data analytics

Problem solving

Tools

AWS

GCP

Azure

Kafka

gRPC

React

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

• 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