Principal Software Engineer, Cloud
TELESOFT LLC DBA CALERO —Royal Tunbridge Wells
- Full-time
- Azure
- Management
- SQL
Quick apply
Managing Director, Agentis Pharmacy
Ashtons Hospital Pharmacy Services Limited —Brighton
- Full-time
- Master's degree
- Business
- Health & wellbeing programme
Quick apply
12d
Principal Delivery Project Manager – Flightscape platform
CAE Inc. —Burgess Hill
- Full-time
- Hybrid work
- Up to 50% travel
- PMP
- English
Senior Operations Engineer
BBC —Royal Tunbridge Wells
- £48,700 - £62,150 a year
- Weekend availability
- Windows
- Travel
- Automotive diagnostics
4d
Volunteer Manager
Sussex Emmaus —Brighton
- From £25,706 a year
- Full-time
- Customer service
- Microsoft Office
- Project management
Quick apply
14d
Design and Certification Specialist
Civil Aviation Authority —Gatwick Airport
- £68,000 - £72,000 a year
- Full-time
- Hybrid work
- Presentation skills
- Annual leave
- Gym membership
8d
Staff PHP Engineer
Tillo —Brighton and Hove
- Full-time
- Hybrid work
- AWS
- Mentoring
- APIs
Software Business Analyst
Principal I Ltd —Horsham
- From £30,000 a year
- Full-time
- Hybrid work
- Azure
- Microsoft Office
- AWS
Quick apply
9h
Principal Electrical Engineer -Substations
Mott MacDonald —Brighton
- Full-time
- Hybrid work
- System design
- English
- Master's degree
- Employee discount
5d
CDM Principal Designer
Fulkers Bailey Russell —Brighton
- Full-time
- Hybrid work
- Organisational skills
- Communication skills
- Time management
- Employee assistance programme
- Referral programme
Quick apply
Lead Systems Engineer
General Dynamics Mission Systems - United Kingdom —Hastings
- £59,200 - £80,000 a year
- Full-time
- Microsoft Excel
- Leadership
Quick apply
Principal Maritime Engineer with dock/lock gate experience
Royal HaskoningDHV —Brighton
- Part-time
- Civil engineering
- English
- Analysis skills
Associate Dentist
Horsham Dental Studio —Horsham
- £100,000 - £140,000 a year
- Part-time
- Anatomy knowledge
- CAD
- Bachelor's degree
- Free parking
Quick apply
13d
Senior / Principal Hydrologist
Royal HaskoningDHV —Brighton
- Part-time
- Data analysis skills
- Master's degree
- Analysis skills
H&S CDM Consultant
Fulkers Bailey Russell —Brighton
- Full-time
- Hybrid work
- Organisational skills
- Communication skills
- Time management
- Employee assistance programme
- Referral programme
Quick apply
Principal Systems Engineer - Electronic Warfare
Thales —Crawley
- Full-time
- Military
- Leadership
- Annual leave
- Employee discount
Principal Civil Engineer
AFRY —Horsham
- Hybrid work
- AutoCAD
- CAD
- Engineering
- Flexible schedule
Civil Engineer
M Group —Brighton
- £50,000 - £55,000 a year
- Engineering
- Microsoft Office
- Bachelor's degree
- Annual leave
- Employee assistance programme
6d
Principal Maritime Civil Engineer
Royal HaskoningDHV —Brighton
- Part-time
- Hybrid work
- Civil engineering
- English
- Analysis skills

More jobs to discover

Find similar jobs that you might be interested in.

Managing Director, Agentis Pharmacy
Ashtons Hospital Pharmacy Services Limited —Brighton
Personally own the most significant customer relationships in the Pharmacy pillar, including major NHS acute and mental health trusts, large independent mental…
Quick apply
12d
Operations Manager
Adams and Remers —Lewes
*Supporting teams through organisational change* and driving engagement across the firm. Operational Management: 2 years (preferred).
£40,000 - £50,000 a year
Quick apply
11d

I want to receive the latest job alerts for principal software in lewes, esx

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Principal Software Engineer, Cloud

TELESOFT LLC DBA CALERO -
Royal Tunbridge Wells

Quick apply

Job details

Full-time

Qualifications

Azure
Management
ASP.NET Core
React
Expense management
.NET Core
C#
Microsoft SQL Server
Git
Google Cloud Platform
.NET
xUnit
Microservices
SQL
AWS
REST
GitHub
APIs
SaaS
AI
TypeScript
PowerShell

Full job description

Principal Software Engineer, Cloud

Senior Full-Stack .NET Developer – AI-Forward Engineering

Type: Full-time

Level: Senior

About the Role

We’re looking for a senior full-stack .NET developer who treats AI tooling as a core part of their engineering practice. You’ll build and maintain a multi-service technology expense management platform built on .NET 8, working across both backend microservices and modern frontend applications. You should use AI coding assistants (Cursor, GitHub Copilot, Claude, ChatGPT, or similar) fluently, critically, and responsibly, reviewing generated code with the same rigor you’d apply to a junior developer’s PR.

What You’ll Do

Design and implement features across a distributed .NET 8 microservice platform (REST APIs, background workers, message bus handlers)
Build and maintain modern front-end applications using React and TypeScript
Apply Clean Architecture and CQRS patterns to backend services
Author and evolve EF Core database migrations in a shared schema model
Write unit, integration, and end-to-end tests
Use AI coding tools actively for scaffolding, refactoring, code review, and exploration while maintaining quality ownership
Participate in code review with a focus on patterns, correctness, and maintainability
Contribute to and uphold architectural standards and shared patterns across teams

What We’re Looking For

Must-Haves

5+ years of professional C# / .NET development (.NET 6+ preferred)
Strong understanding of dependency injection, async/await patterns, and service lifetime management
Experience with front-end frameworks (React)
Experience with message-driven architecture (Rebus, MassTransit, NServiceBus, or similar)
Comfort working in multi-tenant SaaS environments
Solid SQL / EF Core skills and experience with schema migrations in production systems
Demonstrable experience using AI coding tools as a genuine productivity multiplier, with judgment to catch what they get wrong

Strong Differentiators

Experience with technology expense management, FinOps tooling, or cloud billing APIs (Azure/AWS/GCP)
Background in Clean Architecture / Domain-Driven Design
Experience with spec-driven development and code generation
Experience writing AI-assisted code at scale and helping establish team norms around it

AI Fluency – What We Actually Mean

Use AI tools to accelerate first drafts of handlers, tests, UI components, and migrations
Critically review AI-generated code against architectural patterns and push back when it deviates
Leverage AI for codebase exploration, refactoring proposals, frontend+backend scaffolding, and documentation
Stay current with evolving AI tooling and bring useful techniques back to the team

Tech Stack

.NET 8, C#, ASP.NET Core
React / TypeScript / Blazor (front-end)
Message bus (Rebus, MassTransit, or similar), EF Core (SQL Server)
Azure (App Services, Service Bus, Application Insights)
xUnit, FluentAssertions, FakeItEasy
Cursor / GitHub Copilot (AI-assisted development)
Git, Azure DevOps, PowerShell

What Good Looks Like in This Role

You reach for AI to eliminate boilerplate and then own what it produces
You contribute well-structured backend handlers and clean, testable frontend components
You notice when a handler or UI module is growing unwieldy and extract without being asked
You read the patterns guide before introducing something new
You write backend and frontend tests that describe intent, not just coverage
You treat shared database migrations as carefully as production deployments

Quick apply

Refine Your Search

principal software jobs in lewes, esx

Principal Software Engineer, Cloud

Managing Director, Agentis Pharmacy

Principal Delivery Project Manager – Flightscape platform

Senior Operations Engineer

Volunteer Manager

Design and Certification Specialist

Staff PHP Engineer

Software Business Analyst

Principal Electrical Engineer -Substations

CDM Principal Designer

Lead Systems Engineer

Principal Maritime Engineer with dock/lock gate experience

Associate Dentist

Senior / Principal Hydrologist

H&S CDM Consultant

Principal Systems Engineer - Electronic Warfare

Principal Civil Engineer

Civil Engineer

Principal Maritime Civil Engineer

More jobs to discover

I want to receive the latest job alerts for principal software in lewes, esx

Explore jobs in more locations

Principal Software Engineer, Cloud

Senior Full-Stack .NET Developer – AI-Forward Engineering

About the Role

What You’ll Do

What We’re Looking For

Must-Haves

Strong Differentiators

AI Fluency – What We Actually Mean

Tech Stack

What Good Looks Like in This Role

Jobseeker tools

Employer Tools

Browse

Stay Connected