Software Developer with .NET

We develop our own commercial payments services that are used by card schemes, banks, corporate, typically deployed within business to business or travel and expense payment space.

We organise ourselves into small agile teams, use Kanban, meet frequently to refine our backlog, organise ourselves into releases, and collaborative with our clients, focused on shipping value. Team members are encouraged to contribute, have work peer reviewed, develop as an individuals, support each other, our services, and clients.

As a flexible software developer in .NET, depending on your experience and ability, you will be able to demonstrate experiences in,




  • Jira software (kanban)

  • Confluence, word, powerpoint, etc

  • Bitbucket (GIT) with pull requests

  • Build systems on team city

  • Visual studio 13 - 17


  • C# .NET 4.5+ - .NET Core 2+

  • Unit and integration testing

  • API

  • Security aware (ciphers, encryption, signatures, hashing, masking, padding, JWT, key management)

  • SQL Server 2016/sp1, sql, database migrations, linq, stored procedures, entity framework

  • IIS, kestral, middleware

  • Web including javascript, css, html, and frameworks


  • Build scripts, deployments, and automation

  • Targeting high availability, multi-site, meeting service levels

  • AWS and co-location

Icing on the cake ( really specialist stuff )

  • PCI DSS Level 1 with oWASP and CWE

  • Payment authorisation protocols including ISO 8583:87-03

  • Payment data exchange protocols eg tamara, cidf3, wings, xchange

Note: Fast PC, dual screen, all the coffee you drink !


The ideal candidate, whilst well versed in the Microsoft stack, will be interested in other technologies, they will be agile minded, enthusiastic, and able to coherently present strong ideas and sustainable solutions to the team. Domain knowledge is a real plus too.

Responsibilities, to the best of your ability, accountable to the team, company and client,

  • Analysis, capture, and refinement of requirements (documenting them on Jira, Confluence, Word, Power Point, etc)

  • Preparation and review of statements of work, designs, specifications, and ideas

  • Craft, design, and test of code, unit tests, deployments, scripts, documentation, etc

  • Contribute to meetings including

    • Progress (daily)

    • Planning (weeks)

    • All hands (monthly)

  • Work to improve standards, guidelines, policy and processes, and participate in company audits

  • Collaborate with internal teams & disciplines, especially the operational teams, to fully support our products and services (for the teams part), ensuring what we do holistically makes good sense

  • Clearly communication and promote new releases through environments through to production

  • Learn, share, and mentor with the team in positive and constructive ways new ideas, methods, technology, etc, work independently when required.

You need to be fluent in the English language, spoken and written, but those skilled in other languages within Europe and East Asia is a real plus too.


In addition to enjoying your time spent at dataflexnet ( more here ) ,

  • Competitive salary according to fit, skill, experience, and position (20-50k)

  • 24 Days Holiday (plus national holidays) increasing with length of service

  • Personal training budget

  • Gain valuable experience working within a global Fintech business


As Dataflexnet is a member of Digital Manchester, you will receive from Digital Manchester, free membership, free or discounted access to events, and benefit discounts.

  If you are interested then send us a note and CV to