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Junior Software Engineer (C# / .NET)

Premium Job From NMI
Recruiter: NMI
Listed on: 11th November
Location: Bristol
Salary/Rate: £23,000 - £30,000
Type: Permanent
Start Date: ASAP

We are looking for an Associate Software Engineer to join our Platform development team. The Platform Development Team is responsible for the central processing layer which is our fundamental server powering all our products and services, operating within a highly secure operating environment mandated by Visa and MasterCard. The majority of this role will be focused on the continued development of our core platform, to support new customers from around the globe, new products and services, bespoke customer requirements, new feature requests and general enhancements.

You will have good experience in C# or C++ with a background in other languages such as Java and SQL. Candidates without C# or C++ experience will be considered with the expectation of object orientated development experience in another language.

This role is based in our beautiful office in central Bristol and offers great flexibility to work from home.

About Us

NMI develops the most trusted payment software for mobile, online and in-store that is relied on in 38 countries, 24 hours a day, 365 days a year. With offices in Bristol, Chicago, Salt Lake City and New York, our payment technology powers millions of customers worldwide, ensuring they can take payments worth billions, securely and reliably. You've probably used our software when ordering a burger, paying for parking or booking a train ticket - without realising it!

A great place to work

At NMI we are proud of our people-first culture, we know that our people are what makes NMI great and they are at the centre of everything that we do. We run Employee Engagement Surveys twice a year and are extremely pleased that our staff say our culture and the people are the best things about working at NMI, and we have to agree!

We have a firm commitment to strengthening the diversity of our workforce, and therefore welcome and encourage applications from all communities and underrepresented groups.

We want people to bring their unique blend of experiences, backgrounds, perspectives and knowledge to NMI, as diversity makes us stronger.

What will I be doing?

  • Development and support of our processing applications and tools
  • Development and support of internal processes relating to different aspects of payments
  • Development and support of other applications required for the companies procedures
  • Part of the team dealing with customer queries and issue resolution

Do I have what it takes?


Essential Criteria

  • Good understanding and experience of C#
  • Common SQL and at least one Database Management System
  • Attention to detail
  • Excellent communication (both written and verbal) and interpersonal skills

Preferred Criteria

  • Experience of C#, C++, Go or Java in a commercial environment
  • Knowledge of SQL Server and SQL Stored Procedures
  • Understanding and experience of cryptography and its application in different areas
  • An understanding of the PCI security standards and the considerations relating to their use
  • Understanding or experience of RESTful Web Services
  • Understanding of Secure Programming Practices
  • An understanding of networking principals and protocols such as sockets, HTTPS, DNS and TLS
  • Experience in the payment processing industry
  • Version control in a multi-user


As well as being a part of something exciting everyday, you will also receive the following benefits:

  • Competitive salary of between £23,000 to £30,000 per annum (dependant on level and years of experience)
  • 25 days holiday each year (+ bank holidays + 1 day after each year of service with up to a max. of 30 days)
  • Flexible working hours to suit your lifestyle (employees can start their day between 8am and 10am and finish between 4pm and 6pm)
  • A flexible hybrid working arrangement
  • Free car parking when working at the office
  • Family Friendly policies (Enhanced Maternity and Paternity Pay and Shared Parental Leave)
  • Annual Bonus scheme
  • We provide our employees with fantastic career progression opportunities, offering specific courses and the possibility to gain further qualifications.
  • Private health insurance upon successful completion of your probationary period
  • A strong commitment to employee wellbeing including mental health first aiders, yoga sessions and employee assist programme
  • Cycle to Work Scheme (government-backed cycle to work scheme)
  • Workplace pension scheme
  • Perkbox subscription - discounts on gyms, restaurants, high street retailers, cinema tickets etc
  • Bonusly colleague reward scheme
  • Employee referral scheme with generous financial reward

An offer will be dependent on passing background criminal and financial checks.

Contact Name: NMI
Reference: TJ/10211/F2E60F856B
Job ID: 3003709

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