Job Description:
At Jonas Fintech, we’re all about helping businesses succeed by being a true fintech partner. With over 20 years of expertise, we proudly manage three leading brands: Paygate, London & Zurich, and Power2SMS. Together, we provide solutions for Direct Debit, Bacs, and validation services, and help businesses connect with their customers at scale through SMS and WhatsApp.
Our mission is simple — build solutions centred on trust and care. We understand that every transaction represents trust between a business and its customers, and we’re committed to safeguarding this through our reliable products and exceptional service.
As part of the global Jonas Software group within Constellation Software Inc, we combine the agility of a small business with the backing of a large organisation that operates in 17 countries. The group’s focus is on building sustainable, long-term relationships and meeting our customers' software and service needs. For more information, visit the Jonas Software UK website: https://www.jonassoftware.co.uk/.
We have ambitious plans to expand and enhance our offerings, bringing value to both current and future customers. With an exciting roadmap ahead, we’re constantly exploring new markets, investing in growth, and embracing the latest technologies to elevate our businesses to the next level.
If you’re passionate about working for a growing, innovative company that puts trust, care, and lasting relationships first, Jonas Fintech is the place for you. Join us on this exciting journey and become part of something big.
We are committed to offering flexible working arrangements and will consider both full-time and part-time candidates for this role.
Join Our Transformation: Build the Future of Fintech
We’re on a bold mission to deliver an enduring, modern, scalable platform powered by cutting-edge development practices. Backed by internal investment and full senior leadership support, we’re reimagining how we build, deliver, and evolve our products — and we want professional, passionate, pragmatic, creative engineers to be part of this journey.
You’ll be at the heart of large-scale transformation, helping us reshape our technology stack and development culture. From test-driven development and CI/CD pipelines to lean, business-driven development and Kanban practices—you’ll help embed engineering excellence from the ground up.
Why This Role Stands Out:
• Real Impact: Your code will directly shape the future of our business. You’ll see the results of your work fast.
• Architectural Influence: Help guide key technical decisions as we refactor, rearchitect, and modernize using techniques like the strangler fig pattern.
• Continuous Learning: We don’t just encourage learning — we require it. You’ll spend a minimum of 4 hours per week on deliberate technical growth.
• Agile Culture: Join a team that's serious about lean thinking and Kanban, with leadership that walks the talk.
• Exciting Roadmap: We're already 3 months into a multi-year plan involving CI/CD, automated unit and integration testing, and modern software delivery practices.
We know the environment isn’t perfect — yet. But we’re committed to doing things the right way, combining new feature delivery with technical debt reduction
We’re looking for developers with experience in legacy system transformation and a passion for modern software practices. If you thrive in change, love writing clean, testable code, and want to help drive cultural and technical evolution — let’s talk.
Our current stack is MS SQL, Stored Procedures, SSRS, C#, Entity Framework, (MVC) Razor , Bootstrap and JQuery.
Salary will be commensurate with experience and job responsibilities. We offer excellent benefits. Only candidates who are eligible to live and work in the UK need apply.
LOCATION
• Remote (but must be prepared to travel in the UK occasionally to meet at team / company events)
• The position is based in the UK.
BENEFITS
• 25 days annual leave
• 10 days rolling sick plan, including extended illness pay
• Pension 5% EE and 4% ER (increases after 3 years to a max of 6%)
• Life Assurance 4x base salary
• Private Health Insurance
• Option to join the CSI Employee Share Purchase Scheme
• Personal Travel Insurance
• Cycle to Work scheme
• Electric/Hybrid Vehicle scheme
• Discounted gym membership
• Discounted high street retailer scheme.
In addition, join our team at Jonas Fintech and enjoy:
• ½ Day to take as time off for your wellbeing
• An additional day off for your birthday or significant celebration per year
• Access to Wellhub, which offers you subsidised access to gyms across the UK along with access to subsidised wellbeing apps, with an option to upgrade and add family members.
MUCH MORE THAN A BENEFIT
• Internal Learning & Development programmes
• Internal Mentor programme
• Employee Assistance Program (EAP) and Mental Health First Aiders to support you
• Jonas Europe & Jonas Global networking events. Join communities, build networks and collaborate with your colleagues across the Global Group.
Our people define us and, at Jonas, we believe that diversity in all its forms enriches our organisation and drives innovation. We actively seek to create an environment where all employees feel valued, heard, and empowered to contribute their best work. We do not discriminate on the basis of any protected characteristic and are dedicated to providing equal opportunities for all. Come and be part of a team where your unique background and experiences are celebrated!
We strongly encourage applications from candidates of all backgrounds, including those from underrepresented groups such as women, ethnic minorities, people with disabilities, and LGBTQ+ individuals and we are committed to creating an interview and hiring process that is accessible and inclusive for everyone.
Here at Jonas Europe, we see flexibility as a game-changer. We truly believe that working flexibly together helps to increase our innovation, growth and productivity, as well as supports our employees’ wellbeing and helps to provide great places to work.
For most roles, the following types of flexibility are usually possible: working location, number of hours/days worked, different start and finishing times, flexible lunch break arrangements, agreed core hours, flexible hours, an element of working from home, compressed hours.
Many of our employees work flexibly in many different ways, including part-time. Please talk to us at interview about the flexibility you need. We can’t promise to give you exactly what you want, but we do promise to consider all requests.
Business Unit:
London & Zurichwww.paygate.uk
Jonas Software is a leading provider of enterprise management software solutions, serving a wide range of vertical markets including hospitality, healthcare, construction, education, personal care, fitness, leisure, moving and legal services, to name a few. Within these markets, Jonas is comprised of over 65 distinct brands, each a respected leader in its domain.
Jonas’ vision is to be the branded global leader across these verticals and to be recognized by customers and industry stakeholders as the trusted provider of “Software for Life.” We are committed to technology, product innovation, quality, and exceptional customer service.
Jonas Software supports over 60,000 customers in more than 30 countries. We employ over 6,000 skilled professionals, including industry experts and technology specialists. Across our broader network, we support a global workforce of more than 30,000 employees.
Headquartered in Canada, Jonas Software has a global footprint with offices around the world. We’re a 100% owned subsidiary of Constellation Software Inc., based in Toronto, publicly listed on the TSX (CSU.TO), and a member of the S&P/TSX 60 Index.
Cambridge Mobile Telematics
NVIDIA
Cority
8th Light
Parexel
Perseus Group, Constellation Software
Perseus Group, Constellation Software
Perseus Group, Constellation Software