Senior Python Software Developer

£70,000-£80,000

Leeds – 2 days per week in office

Must be eligible for SC clearance

Sanderson Government and Defence are supporting a well respected and established public sector consultancy business in their search for an experience Senior Python Developer to join there team supporting a central government end client in Leeds.

This role is offered on a hybrid basis, with attendance required 2 days per week in a Leeds office.

Key Responsibilities:

• Lead the design and development of complex applications using Python and frameworks such as Flask, FastAPI, or Django.
• Collaborate with front-end developers to deliver cohesive and user-friendly interfaces.
• Design, implement, and optimise SQL databases for performance and reliability.
• Manage cloud infrastructure using AWS core services and Terraform.
• Develop serverless architectures and manage containerised environments using Docker.
• Ensure robust application performance through effective debugging, integration, and testing practices.
• Promote best practices in software development, including exception handling, OOP, and code quality.
• Mentor junior developers, providing guidance on coding standards, version control, and development workflows.

Essential Qualifications and Experience:

• Minimum of five years’ professional experience in Python development.
• Strong understanding of front-end technologies including Vue.js or React, HTML, and CSS.
• Proficient in database design, SQL, and data analysis.
• Hands-on experience with AWS and infrastructure-as-code tools such as Terraform.
• Familiarity with containerisation (Docker) and serverless computing.
• Demonstrable experience working within Agile environments and CI/CD pipelines.
• Excellent problem-solving skills, attention to detail, and the ability to adapt to changing requirements.
• Strong communication skills and a collaborative approach to team leadership.

Desirable Skills:

• Experience with Object Relational Mappers (ORMs) and server-side templating.
• Advanced knowledge of AWS architecture and best practices.
• Familiarity with software design patterns and architectural principles.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Mobile Application Security Engineer

Rate: £650 per day Inside IR35

Duration: 6 months

Location: Bristol / Hybrid (onsite once a month)

We have an exciting opportunity for a Mobile Application Security Engineer to join a leading organisation on a contract basis. You’ll play a key role in strengthening the security of large-scale mobile applications, working across both iOS and Android platforms.

Partnering with engineering and cyber security teams, you’ll embed and enhance mobile security throughout the development lifecycle shaping tooling strategy, driving automation and promoting a “Secure by Design” culture.

Key Responsibilities

• Design and implement automated mobile security testing and vulnerability scanning within the mobile SDLC.
• Define and deliver the mobile app security tooling and technology strategy.
• Run proof of concepts for new tools and integrate them into CI/CD pipelines.
• Roll out, optimise and measure the effectiveness of mobile security tooling.
• Triage vulnerabilities, identify false positives and provide remediation and risk guidance.
• Build strong partnerships with engineering and security stakeholders.
• Implement and maintain a Mobile Application Security Testing platform for manual testing.

Skills & Experience

• Proven experience with mobile SAST/SCA and security testing tools (e.g. mobSF, Corellium).
• Strong grasp of vulnerability frameworks such as CVSS and EPSS.
• Development experience in at least one mobile programming language (Objective-C, Swift, Java, Kotlin).
• Scripting skills in Python or JavaScript.
• Familiar with CI/CD and build tools (GitLab, Harness, Jenkins).
• Excellent understanding of mobile security vulnerabilities and emerging threats.
• Strong communication skills – able to explain risks clearly to technical and non-technical audiences.
• Relevant certification (e.g. GIAC Mobile Device Security Analyst).

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

About Us:

Sanderson Government and Defence are working with a specialist software consultancy which provide bespoke solutions to help solve their customers complex operational problems. As the business continues to grow the company are interested in speaking with experienced Full Stack Software Engineers with expertise in Java to join a live project.

You will be designated an office base, however the company work in a hybrid fashion so you can choose how often you work from the office or home. There is an expectation however to meet customers on a regular basis.

The Opportunity

We have a wide variety of teams who support our customers on a range of interesting and complex projects, building new bespoke software solutions and providing them with up-to-date capability to meet their needs. As a Senior Software Engineer, you will join an Agile focused team, gaining exposure to:

• Implementing software solutions including design, development and testing
• Using a wide range of technologies, specialising in the use of open-source libraries and components
• Utilising tools to build continuous integration pipelines, which help monitor and ensure software quality and security
• Deploying software systems to a mixture of environments, including public and private cloud
• Full Software Lifecycle involvement: project concept formalisation; requirements analysis and specification; architecture design; implementation and delivery; training and support and software lifecycle and maintenance

The Fit:

At present we are interested in speaking to Full Stack Engineers with commercial experience using a range of languages / technologies including Java & AWS.

Due to the industries we work in, we require all our team to be able to obtain security clearance. To qualify for this, you must be a British passport holder and have lived permanently in the UK for the last 5 years.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Java Software Engineer

£50,000-£75,000/annum

Fully Remote

SC position – Clearable

Sanderson Government and Defence are working alongside a growing, exciting consultancy business who have recently won several exciting new projects in the UK public sector.

They are a highly flexible business, with fully remote working available.

Technically, as you could end up working across a number of different projects, we are relatively open minded, however there are a few essentials.

You must have 4+ years experience, and be capable with the following:

• Java
• Spring ecosystem
• AWS Cloud
• Microservices

Towards the upper end of the salary banding, we would also expect experience in mentoring, willingness and experience engaging with clients, up to team leadership at the upper end.

Please note: We also have a similar python focussed position available, so please also apply if that would apply to yourself.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Full Stack Developer – £60,000 – Hybrid (Bath three days a week on site)

An exciting opportunity has arisen for a Full Stack Developer to join a growing technology team within a well established organisation in the Southwest. This is a key permanent hire within a business undergoing significant transformation, with ambitious plans to modernise and restructure their technology landscape.

You’ll work across both front end and back end technologies, helping to migrate from legacy systems to modern, scalable solutions. This role offers real scope to influence technical direction and shape the organisation’s future stack.

Key Skills & Experience:

• C# / .NET Framework / .NET Core
• VB.Net (for legacy system support)
• Angular (or similar front-end framework)
• RESTful APIs and integration experience
• SQL Server or related databases

Why Join?

• Be part of a major technology transformation programme
• Work with supportive leadership focused on innovation and modernisation
• Hybrid flexibility and a collaborative environment
• Opportunity to help shape the next generation of the company’s tech stack

If you’re a Full Stack Developer who thrives in environments of change and enjoys bringing modern engineering practices to life, this could be the perfect opportunity for you.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

The Role
This is an exciting opportunity for a Senior AI Engineer to lead a small, high-performing team researching and applying cutting-edge advances in artificial intelligence. You will bridge the gap between state-of-the-art AI research and real-world mission impact, helping clients understand and harness transformative technologies in a secure and sensitive environment.

You will be joining an experienced and collaborative team playing a key role in shaping the AI research direction and delivering innovative, high-trust solutions to our partners.

A current DV clearance is essential for this role.

Key Responsibilities

• Lead AI Research & Innovation:
  Direct a small technical team to identify, evaluate and adapt the latest developments in generative AI, LLMs, and related technologies.
• Translate Advanced AI Concepts:
  Communicate complex technical ideas clearly and effectively to non-technical stakeholders, ensuring that clients understand both the opportunities and limitations of AI technologies.
• Client Engagement & Advisory:
  Serve as a trusted technical advisor to clients, providing insight and recommendations on how advanced AI can be responsibly and effectively integrated into their missions.
• Project Delivery & Leadership:
  Plan, oversee, and deliver high-quality research and development projects. Act as a technical lead and mentor to junior engineers, fostering an environment of curiosity, innovation, and excellence.

You Will Have

• Proven experience working with generative AI, LLMs, or advanced machine learning
• A strong understanding of state-of-the-art AI research and its practical translation into applied systems.
• Excellent customer-facing communication skills, with the ability to explain complex concepts simply and clearly.
• Experience leading small technical teams or research groups.
• Strong analytical, problem-solving, and technical leadership
• Experience managing internal and external stakeholders across diverse technical and operational environments.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Power Platform Application Developer

£472.81/day Inside

Contract until June 2026

SC required

We’re looking for an experienced Power Platform Developer to build and support business applications using Microsoft tools.

Key Responsibilities

• Develop apps using Power Apps (Canvas & Model-driven)
• Automate workflows with Power Automate
• Create reports and dashboards in Power BI
• Work with Dataverse, SharePoint, and external systems
• Clean and analyse data
• Provide user support and training
• Document your work and follow best practices

Requirements

• Strong experience with Power Platform tools
• Ability to work independently and deliver high-quality solutions

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Power Platform Application Developer

£391.33/day Inside

Contract until June 2026

SC required

We’re looking for an experienced Power Platform Developer to build and support business applications using Microsoft tools.

Key Responsibilities

• Develop apps using Power Apps (Canvas & Model-driven)
• Automate workflows with Power Automate
• Create reports and dashboards in Power BI
• Work with Dataverse, SharePoint, and external systems
• Clean and analyse data
• Provide user support and training
• Document your work and follow best practices

Requirements

• Strong experience with Power Platform tools
• Ability to work independently and deliver high-quality solutions

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Sanderson are proud to be partnering with a leading financial services organisation undergoing a major digital transformation. As part of this journey, they are looking to appoint multiple Engineering Managers to help shape high-performing teams and drive technical excellence across the business.

As an Engineering Manager, you’ll play a pivotal role in growing and leading talented engineering teams, embedding modern development practices, and contributing to the organisation’s technical strategy. Working closely with product, architecture, and delivery teams, you’ll help drive innovation, foster a culture of continuous learning, and ensure technical delivery aligns with broader business objectives.

Key Responsibilities:

• Build and scale high-performing engineering teams through effective recruitment, coaching, and career development.

• Champion engineering excellence by defining best practices, modern tooling, and architectural standards.

• Foster a culture of innovation and continuous improvement across delivery teams.

• Contribute to architectural discussions and ensure alignment with business goals and technical strategy.

• Support engineers through regular 1:1s, mentoring, and technical guidance.

• Collaborate with cross-functional teams including Product, Architecture, and Delivery to ensure successful outcomes.

• Drive adoption of modern software development practices (Agile, CI/CD, automated testing, cloud-first engineering).

Skills & Experience:

For Senior Engineers moving into Management:

• Hands-on experience with Java, React/Angular, or similar modern technologies.

• Strong mentoring skills and a passion for developing others.

• Interest in shaping technical direction and team culture beyond individual contribution.

For Experienced People Managers:

• Proven track record of developing and leading high-performing engineering teams.

• Strong understanding of agile delivery and modern engineering practices.

• Collaborative leadership style with excellent communication and stakeholder engagement skills.

For Both:

• Experience working with cloud platforms (AWS, Azure, or GCP).

• Passion for innovation, continuous improvement, and building inclusive teams.

• Strong alignment to engineering excellence, autonomy, and growth.

This is a full-time, permanent role, offering a starting salary up to £72,000 (DOE) and a fully remote working model.

Please Note: You must be a UK resident to apply for this role.

Apply now or email [email protected] for more details.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.