Senior software engineer Work, Jobs in Durham, Dur (with Salaries)

Senior Software Engineer (C#)
tombola —Sunderland
- Hybrid work
- SQL
- Mentoring
Quick apply
Senior Software Engineer
Dräger UK & Ireland —Blyth
- Hybrid work
- Engineering
- C++
- No degree
13d
Senior Systems Engineer – Integration & Test
Lockheed Martin Corporation —Newcastle upon Tyne
- £118,000 - £147,000 a year
- Full-time
- Engineering
- University
- No degree
- Employee assistance programme
- Employee discount
Senior Software Engineer I
MHR INTERNATIONAL UK LIMITED —Newcastle upon Tyne
- Azure
- JavaScript
- Mentoring
- Employee discount
- Referral programme
6d
Senior Software Engineer, Core Experiences - Newcastle, United Kingdom
Speechify —Newcastle upon Tyne
- Remote
- Java
- APIs
4d
Senior Process Engineer
Assystem —Sunderland
- Hybrid work
- Engineering
- Travel
- In-person
Senior EC&I Engineer
Assystem —Sunderland
- Engineering
- System design
- Supervising experience
Senior Software Engineer (UK Remote)
Turnitin, LLC —Newcastle upon Tyne
- Full-time
- Remote
- Java
- AWS
- Mentoring
- Annual leave
Quick apply
Cryptography Engineer
Lockheed Martin Corporation —Newcastle upon Tyne
- £72,500 - £90,000 a year
- Full-time
- University
- Employee assistance programme
- Employee discount
7d
JUNIOR SOFTWARE ENGINEER – ENGINEERING APPLICATIONS
Vulcain Engineering Group —Hexham
- Hybrid work
- Azure
- Engineering
- Maintenance
- Employee assistance programme
- Referral programme
6d
Senior Air Traffic Engineer
Newcastle International Airport Ltd —Newcastle upon Tyne
- Management
- Communication skills
- Free parking
- Annual leave
14d
Senior Manufacturing Engineer / Lead Manufacturing Engineer
Lockheed Martin Corporation —Newcastle upon Tyne
- Full-time
- CAD
- Assembly
- University
- Employee assistance programme
- Employee discount
7d
Spacecraft Platform Engineer
Lockheed Martin Corporation —Newcastle upon Tyne
- £93,000 - £116,000 a year
- Full-time
- University
- Employee assistance programme
- Employee discount
7d
Senior Test Engineer
Turntide Technologies Inc —Gateshead
- Full-time
- Communication skills
Quick apply
9d
Senior Piping Engineer
Altrad —Teesside
- CAD
- Engineering
- System design
Quick apply
1h
Senior Engineer (Cyber Security)
North Tyneside Council —North Tyneside
- £44,075 - £48,226 a year
- Full-time
- Azure
- Management
- Computer Science
1d
Design Engineer (Hartlepool)
JDR Cable Systems —Hartlepool
- AutoCAD
- CAD
- Engineering
Senior Mechanical Engineer
Assystem —Newcastle upon Tyne
- Hybrid work
- AutoCAD
- Engineering
- Master's degree
Lead Systems Engineer – Space
Lockheed Martin Corporation —Newcastle upon Tyne
- £93,000 - £116,000 a year
- Full-time
- Management
- Engineering
- Assembly
- Employee assistance programme
- Employee discount
14d
Senior Site Engineer
Costain —Newcastle upon Tyne
- Full-time
- Engineering
- Contracts
- Communication skills
14d

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Senior Software Engineer (C#)

tombola -
Sunderland

Quick apply

Job details

Qualifications

C#
.NET
SQL
Mentoring

Full job description

The opportunity

We're looking for a Senior Developer/engineer who's genuinely ready for a senior role — someone who can own the full software lifecycle, shape technical direction, and raise the bar for the team around them.

This isn't a stepping stone. It's a role where your experience and instincts will matter from day one. You'll be working on platform systems that power one of the UK's biggest gaming sites — everything built in-house, with real complexity and real stakes.

You'll be expected to drive quality, influence architecture decisions, and be a technical reference point for your peers. But you'll also be coding — we're not looking for someone who's stepped too far from the work. The best senior developers here do both.

What you'll be doing

Owning the full software delivery lifecycle — from requirements through to production
Designing and delivering robust, scalable solutions in C# across tombola's platform
Driving engineering standards — code quality, testing practices, documentation
Influencing technical direction and contributing to architectural decisions
Mentoring and coaching developers at all levels
Leading code reviews and pair programming sessions
Working closely with stakeholders and non-technical colleagues to shape requirements
Monitoring application health and leading performance investigations
Contributing to agile ceremonies — standups, sprint planning, technical refinements
Ensuring compliance and regulatory considerations are built into delivery

What we're looking for

Proven, senior-level C# skills — we're looking for someone exceptional here
Strong knowledge of the .NET ecosystem — both legacy frameworks and modern .NET
Experience owning work end-to-end, from requirements through to live systems
Deep understanding of testing methodologies — unit, integration, and beyond
Ability to design software to a high technical standard, collaboratively
Experience mentoring others and influencing team direction
Excellent communication across technical and non-technical audiences
Understanding of compliance, regulations, and how they affect software delivery

Nice to haves

SQL and data layer experience
Experience working across both backend and frontend codebases
Involvement in hiring and technical interviewing

Why tombola? ️

At tombola, senior developers have genuine influence. Technology decisions are never handed down from above — they're made by the people closest to the work. You'll have real autonomy, real ownership, and the chance to help shape how we build for years to come.

We're a business that's genuinely driven by technology. Every product, every system, every feature — built in-house. That means your work has real impact, and the team you'll join knows and cares about that.

We've also got great benefits. Head to our careers site to see the full picture.

At tombola we know that our differences make us stronger and that thinking differently is key to long-term success. We work hard to create a culture of inclusivity where everyone is free to be themselves. We welcome applications from all backgrounds.

Quick apply

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Senior Software Engineer (C#)