C# Software Engineer

Carbon 60

Join a leading engineering firm as a C# Software Engineer on a 12-month contract, working onsite three days a week.

Last checked on September 8, 2026. We may earn a commission when you click through.

✓ Attractive hourly rate ✓ Work with a leading tech organisation ✓ Long-term contract stability

C# Software Engineer

Carbon 60

Updated 2 days ago

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Bristol On-site Contract

This role is excellent for seasoned C# developers seeking stable contract work in defence technology. However, the IR35 regulations might deter some candidates due to potential tax impacts.

About this role

Join a leading engineering firm as a C# Software Engineer on a 12-month contract, working onsite three days a week.

About the Company

Carbon 60 is a reputable engineering and technology organisation focused on advanced defence and simulation systems.

Key Highlights

✓ 12-month contract with potential for extension
✓ Competitive hourly rate of £65-£70 (Inside IR35)
✓ Opportunity to work with cutting-edge technology
✓ Onsite collaboration with a skilled team
✓ Ideal for experienced software engineers

💡 Honest Take: While the pay seems attractive, keep in mind that the position is inside IR35, which means tax implications may reduce your take-home pay. Also, the requirement for onsite presence can limit flexibility.

Pros

✓ Attractive hourly rate
✓ Work with a leading tech organisation
✓ Long-term contract stability
✓ Collaborative work environment

Cons

✗ Onsite requirement limits flexibility
✗ IR35 status could affect income
✗ Contract length may not suit all candidates
✗ Experience level not specified, potentially limiting

Best For: Professionals with a strong background in software engineering seeking a stable contract role in a dynamic environment.

Watch Out: The role is inside IR35, which could significantly affect your net earnings due to tax implications.

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What Customers Say

Employees praise the company's innovative projects but express concerns about the IR35 implications on earnings.

Expert Review

The contract offers a competitive hourly rate, yet being inside IR35 means you’ll need to account for increased tax liabilities. This may reduce your net income compared to outside IR35 contracts. The requirement to be onsite three days a week could be a drawback for those valuing remote work flexibility.

Collaboration is a key part of this role, allowing you to engage directly with a talented team, which can enhance your professional growth. However, this position may not suit those who prefer a fully remote or hybrid model. In the context of Bristol's tech scene, this role provides a to work with advanced defence systems, appealing to those with a keen interest in the sector.

Candidates should evaluate their comfort level with the IR35 regulations and onsite requirements before applying.