Developer Work, Jobs in Markfield, Lec (with Salaries)

Senior Software Developer
ONYX Insight —Nottingham
- AWS
- APIs
Quick apply
UX Engineer (Design System / Front-End Developer)
Boots —Nottingham
- Full-time
- JavaScript
- Agile
- HTML
- Employee discount
Senior Software Quality Assurance Engineer (111735-0726)
University of Warwick —Coventry
- £47,389 - £56,535 a year
- Part-time
- DevOps
- Analysis skills
- University
- Annual leave
11d
Staff Software Engineer - React, Typescript
Experian —Nottingham
- Full-time
- Hybrid work
- Mentoring
- Software development
- AI
- Annual leave
Quick apply
Junior Application Developer - (3-month fixed term contract)
Potter Clarkson —Nottingham
- Full-time
- Hybrid work
- Azure
- Computer Science
- DevOps
Quick apply
5d
National Data and Analytics End to End Developer
Aldi —Atherstone
- £55,125 - £63,500 a year
- Hybrid work
- Azure
- Data analysis skills
- SQL
- Annual leave
- Sick pay
Linux Software Development Engineer
SWARCO —Leicester
- £50,000 - £60,000 a year
- Full-time
- Computer Science
- C++
- Bachelor's degree
- Employee assistance programme
- Employee discount
Quick apply
Lead Software Development Engineer - Services
Capital One UK —Nottingham
- Full-time
- Hybrid work
- Java
- AWS
- APIs
Developer / Senior Developer
NEXT —Leicester
- £40,800 - £53,800 a year
- Full-time
- Azure
- Analysis skills
- JavaScript
- Free parking
- Employee discount
Support Developer
Absolute Design —Nottingham
- Up to £30,000 a year
- JavaScript
- Mentoring
- Linux
Lead Software Development Engineer - Shared Platforms
Capital One UK —Nottingham
- Full-time
- Hybrid work
- Java
- AWS
- APIs
Senior Research Engineer (SRE)-Civil Nuclear Technology Transformation
The Manufacturing Technology Centre —Coventry
- £48,000 - £60,000 a year
- Full-time
- Engineering
- Project management
- No degree
Quick apply
Senior Software Development Engineer - Services
Capital One UK —Nottingham
- Full-time
- Hybrid work
- Java
- AWS
- APIs
Software Developer - iGaming
Greentube —Nottingham
- £30,000 - £33,000 a year
- Full-time
- Hybrid work
- Java
- C++
- Bachelor's degree
- Health & wellbeing programme
- Annual leave
Quick apply
Software Developer
Mortgage Advice Bureau —Derby
- Up to £45,000 a year
- Full-time
- Hybrid work
- SQL
- Software development
- APIs
- Annual leave
- Employee discount
Quick apply
12d
Developer
NEXT —Leicester
- £42,100 - £48,800 a year
- Full-time
- Azure
- Analysis skills
- APIs
- Free parking
- Employee discount
Embedded Software Engineer - UK
E-Space —Loughborough
- Full-time
- Azure
- Computer Science
- Engineering
Staff Software Engineer - Back End
Capital One UK —Nottingham
- Full-time
- Hybrid work
- Azure
- System design
- Java
Full Stack Engineer
Blue Light Card —Leicester
- Hybrid work
- AWS
- JavaScript
- APIs
- Free parking
- Annual leave
Staff Software Engineer - React, Typescript
Experian Information Solutions —Nottingham
- Full-time
- Hybrid work
- Mentoring
- Software development
- AI
- Annual leave
9d

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developer jobs near markfield, lec

Senior Software Developer

ONYX Insight
Nottingham

Quick apply

Job details

Fixed term contract

Qualifications

React
C#
.NET
AWS
PostgreSQL
Distributed systems
APIs
TypeScript

Full job description

The Role

Are you a senior backend engineer who thrives on distributed systems, clean architecture, and complex data problems? At ONYX Insight, we're looking for a Senior Software Developer (Contractor) to make an immediate impact on our core platform, a sophisticated distributed system processing data from wind turbines around the world.

This is not a typical SaaS CRUD role. You'll work across a distributed architecture including asynchronous messaging, worker processes, and data ingestion pipelines.

Frontend exposure is a bonus, not a requirement.

Key Responsibilities:

Backend Delivery: Implement robust, well-tested C# .NET services following clean architecture principles — domain logic, data access, messaging, and background processing.

Distributed Systems: Contribute to service boundary design, asynchronous messaging flows, and worker processes within our modular monolith, with an eye on future decomposition.

Data Pipelines: Build and maintain backend ingestion flows that sanitise, standardise, and process high-volume sensor data reliably and at scale.

Code Quality: Write clean, well-tested code with strong unit and integration coverage. You care about correctness, not just delivery.

Collaboration & Deployment: Support frontend engineers with clean API contracts, and contribute to our CI/CD pipeline and artifact-based deployment process.

Ideally, you'll have/be:

Deep, commercial C# .NET experience (5+ years) — comfortable with clean architecture, SOLID principles, and building maintainable systems at scale.

Solid experience with distributed systems and async patterns — service buses, message queues, background workers, and event-driven architecture. You understand the tradeoffs, not just the tooling.

Experience building data ingestion or processing pipelines — handling high-volume, real-world data with a focus on reliability and fault tolerance.

Strong PostgreSQL skills — schema design, migrations, and efficient queries against complex data models.

A genuine testing culture — unit and integration tests written as standard, with an understanding of what makes a test suite valuable.

Familiarity with AWS and how backend services are deployed and monitored in production.

Experience with modular or service-oriented architectures — you appreciate well-defined boundaries and can work pragmatically within a monorepo.

A contractor mindset: self-directed, fast to ramp up, and able to deliver independently — while communicating clearly when things need to be challenged.

Some React or TypeScript exposure is useful, but frontend delivery is not an expectation of this role.

About ONYX

ONYX Insight is a growing technology and engineering organisation in the renewable energy sector. Our vision is to build a more efficient future by becoming the world's most innovative provider of predictive technology solutions. Our advanced sensing, software and analytics combined with our engineering experience are deployed on wind turbines around the world to maximise production and make turbines more reliable for longer, optimising energy production.

ONYX Insight is part of the Macquarie Group. Macquarie is a global financial services group operating in 34 markets in asset management, leasing and asset financing, market access, commodity trading, renewables development, specialist advisory services, capital raising and principal investment. The diversity of the Macquarie Group operations combined with a strong capital position and robust risk management framework has contributed to a 54 year-record of unbroken profitability.

For any further information, or to understand our products and services better, please feel free to look through our website: https://onyxinsight.com/ ... (https://onyxinsight.com/%C2%A0%3C/p%3E%3Cp%3EONYX) Insight are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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Refine Your Search

developer jobs in markfield, lec

Senior Software Developer

UX Engineer (Design System / Front-End Developer)

Senior Software Quality Assurance Engineer (111735-0726)

Staff Software Engineer - React, Typescript

Junior Application Developer - (3-month fixed term contract)

National Data and Analytics End to End Developer

Linux Software Development Engineer

Lead Software Development Engineer - Services

Developer / Senior Developer

Support Developer

Lead Software Development Engineer - Shared Platforms

Senior Research Engineer (SRE)-Civil Nuclear Technology Transformation

Senior Software Development Engineer - Services

Software Developer - iGaming

Software Developer

Developer

Embedded Software Engineer - UK

Staff Software Engineer - Back End

Full Stack Engineer

Staff Software Engineer - React, Typescript

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