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- Tasks: Develop secure web applications and collaborate with experienced developers.
- Company: Join Advanced Secure Technologies, a fast-growing company focused on document fraud protection.
- Benefits: Enjoy a competitive salary, bonuses, 25 days holiday, and training opportunities.
- Why this job: Kickstart your career in tech with mentorship and a clear pathway to senior roles.
- Qualifications: 1+ years in C# .NET development and strong problem-solving skills.
- Other info: Fun office culture with events, free gym access, and flexible support.
The predicted salary is between 32000 - 37000 £ per year.
Location: Cardiff (Office-based, 5 days a week)
Salary: £32,000 to £37,000 DOE + bonus
Closing Date: 26th February 2026
Start Date: Spring 2026
Ready to kickstart your career in software development? If you’ve got the basics of .NET under your belt and are eager to learn from experienced developers, we’ll help you build the skills to become a confident and capable professional. With a clear pathway to becoming a Senior Developer, this is the opportunity to grow, be mentored, and shape your future in tech.
At Advanced Secure Technologies, we’re a fast-growing, innovative company on a mission to protect organisations from document fraud through cutting-edge security solutions. Based on site in St Mellons, Cardiff, we’re expanding and need another skilled developer to help us scale. You’ll work alongside experienced developers, gaining the mentoring and exposure needed to reach your next career milestone.
What You’ll Do:
- Develop and enhance our secure web applications using .NET 8.
- Apply best practices to write clean, maintainable, testable code.
- Collaborate with talented developers, learning from seniors while taking on more complex challenges.
- Share ideas, solve problems, and help shape the future of our products.
What We’re Looking For:
- 1+ years’ commercial experience in modern C# .NET development.
- Strong problem-solving skills, attention to detail, and great communication.
- Bonus points for:
- Exposure to enterprise-scale software, microservices or SaaS product development.
- Knowledge of unit/integration testing, .NET Aspire, Blazor, REST APIs, EF Core, SQL, Redis, Elasticsearch, RabbitMQ, Docker or Blockchain.
- Familiarity with SOLID principles, Clean Architecture, general software architecture concepts, DDD, and secure coding/OWASP practices.
- Experience with Azure DevOps and CI/CD pipelines.
What We Offer:
- Competitive salary £32,000–£37,000 (DOE) + Monthly performance related bonus starting at £150 following induction.
- A clear career pathway to Developer and then Senior Developer and further beyond, with mentoring and skill development support.
- 25 days holiday + Bank Holidays.
- Additional holiday gifted for exceptional dedication and performance.
- Training and development time, plus training budgets for courses/exams.
- Free gym, free eyecare, and a fully stocked kitchen.
- Company car and cycle-to-work schemes.
- A fun, supportive culture with birthday treats and epic office events.
Location/Hours:
Onsite, Eastern Business Park, St Mellons, Cardiff, Wales. Min Hours 37.5hrs per week, 8.30am to 5pm Monday to Friday, with up to one hour for lunch.
If you’re ready to accelerate your development career, gain hands-on experience with the latest Microsoft technologies, and work towards becoming a Senior Developer, apply now – we can’t wait to see what you’ll bring.
On Site Working:
We’re an office-based team because our culture thrives on collaboration and hands-on support, especially as we grow quickly and onboard new team members. While we don’t offer fully remote or fixed hybrid work, we’re flexible when life happens. The facility has secure onsite parking options and adjacent bus stops.
Diversity & Inclusion:
Advanced Secure Technologies is an equal opportunity employer, proud of our ongoing efforts to foster diversity and inclusion. We welcome applicants from all backgrounds and process your personal data in accordance with our Privacy Notice.
Junior Software Developer employer: Advanced Secure Technologies
Contact Detail:
Advanced Secure Technologies Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Junior Software Developer
✨Tip Number 1
Network like a pro! Get out there and connect with other developers, attend meetups, or join online forums. The more people you know in the industry, the better your chances of landing that dream job.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those using .NET. This is your chance to demonstrate what you can do and make a lasting impression on potential employers.
✨Tip Number 3
Prepare for interviews by practising common coding challenges and technical questions. We recommend using platforms like LeetCode or HackerRank to sharpen your problem-solving skills before the big day.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in joining our team at Advanced Secure Technologies.
We think you need these skills to ace Junior Software Developer
Some tips for your application 🫡
Show Your Passion for Development: When writing your application, let us see your enthusiasm for software development shine through! Share any personal projects or experiences that highlight your skills in .NET and your eagerness to learn from seasoned developers.
Tailor Your CV and Cover Letter: Make sure to customise your CV and cover letter for this role. Highlight relevant experience with C# and .NET, and don’t forget to mention any exposure to enterprise-scale software or microservices. We love seeing how you fit into our mission!
Be Clear and Concise: Keep your application clear and to the point. Use bullet points where possible to make it easy for us to read. We appreciate well-structured applications that get straight to the good stuff without unnecessary fluff.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining our team at Advanced Secure Technologies!
How to prepare for a job interview at Advanced Secure Technologies
✨Know Your .NET Basics
Make sure you brush up on your .NET knowledge before the interview. Be ready to discuss your experience with C# and any projects you've worked on. They’ll want to see that you can apply best practices in writing clean, maintainable code.
✨Show Off Your Problem-Solving Skills
Prepare to tackle some coding challenges or problem-solving scenarios during the interview. Think about how you approach problems and be ready to explain your thought process clearly. This is a chance to demonstrate your analytical skills!
✨Be Ready to Collaborate
Since the role involves working closely with other developers, be prepared to discuss how you’ve collaborated in past projects. Share examples of how you’ve communicated ideas and solved problems as part of a team.
✨Ask Insightful Questions
At the end of the interview, don’t forget to ask questions! Inquire about the team culture, mentoring opportunities, or specific technologies they use. This shows your genuine interest in the role and helps you gauge if it’s the right fit for you.
