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Banking software development services in the UK

Building banking software shouldn’t feel like a risky investment. With shifting regulations, ageing systems, and the pressure to scale fast, UK institutions need clarity, not complexity.

As a banking software development company, Vention delivers tailored, reliable solutions that bring peace of mind and keep your tech moving as fast as your ambitions.

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Whatever your institution type, we’ve got you covered

We don’t do off-the-shelf. Our custom banking software development is tailored to your business model, regulatory obligations, user journeys, and internal workflows. (Translation: fewer compromises, faster adoption, and tech that fits how you operate.)

Banking institutions

Retail banks

Commercial banks

Investment banks

Neobanks and challenger banks

Private banks

Digital-only banks

Wholesale banks

Merchant banks

Non-bank financial institutions

Fintech startups

Building societies

Credit unions

Asset and wealth management firms

Insurance companies and insurtechs

Leasing and factoring companies

Peer-to-peer (P2P) lending platforms

Consumer credit firms

Our banking software development services

Bespoke banking software development

Struggling to keep up with fast-moving fintech rivals? We build custom banking applications that align with your institution’s goals and operational challenges, helping you stay competitive, compliant, and ready to scale.

API development and system integration

Disconnected systems and clunky workflows slow everything down. Our engineers create robust APIs, middleware, and custom connectors to streamline data flow, integrate third-party services, and ensure secure, real-time communication across your ecosystem.

Open banking enablement

Becoming a third-party provider comes with technical hurdles. We take them off your plate, handling API integrations, building secure infrastructures, and helping you discover the full potential of open banking.

Fintech consulting and advisory

Not sure where to start with bespoke banking software development? Or maybe looking for ways to reduce your IT costs? Our team will analyse your business case, assess your software systems, and help outline a step-by-step roadmap for achieving your goals, however complex they are.

Software modernisation

We help extend the value of your legacy banking systems by rewriting and refactoring existing code, upgrading architectures, and delivering new features. Our solutions are engineered to help you comply with key security and financial regulations, including GDPR, PCI DSS, MLR 2017, and PSD2.

Support and maintenance

Break the cycle of “run the bank vs. change the bank.” Focus on strategic initiatives while we keep your banking solutions running smoothly, minimising downtime, maintaining performance and security, and addressing issues before they escalate.

Your software idea, brought to life by experts

Time to focus on business development and leave the technical implementation of your banking software to our experienced engineers.

01

Core banking systems

Get a secure, centralised platform for streamlining and automating your banking operations. Depending on your needs, we deliver software modules for core banking functions, including:

  • Customer account management
  • Transaction processing and accounting
  • Risk management with AML/KYC functionality
  • Advanced reporting and analytics
02

Banking CRM

Take your client relationship management to the next level with a tailored CRM solution.

  • Centralising customer data and interaction history
  • Automating manual tasks to streamline email marketing, lead scoring, and lead nurturing
  • Getting insights into customer behaviour to tailor your marketing campaigns and improve customer retention
  • Streamlining customer support
03

Digital banking solutions

In 2023, 62 per cent of UK adults used online banking, and 60 per cent used mobile banking. Empower your clients with robust access to their financials on the go through online banking portals and mobile banking apps.

  • Remote account management
  • Card management
  • Payment and transfers
  • Fast access to customer support
  • Enhanced security with MFA and biometric identification
04

ATM software

Provide your clients secure and convenient access to self-service operations, including cash withdrawals, bill payments, and money transfers. Vention’s team takes on the end-to-end development process of software for your teller machines:

  • ATM applications, including UI and transaction processing logic implementation
  • ATM remote management software
  • Security enablement
  • Integration with core banking systems
05

Investment management software

Empower your corporate and individual customers with a robust instrument for efficient tracking and insights into their financial assets and investments.

  • Portfolio management
  • Real-time analytics of investment performance
  • Risk management
06

Loan management systems

Streamline the entire loan lifecycle within your institution and make the lending process a smooth experience both for your staff and customers.

  • Automating loan application, credit scoring, and loan eligibility checking
  • Tracking loan payments and automating payment reminders
  • Centralising document management

Didn’t find your solution on the list?

No problem. Let’s craft software tailored to your unique needs.

Turn AI into ROI with us

AI is no longer optional; it's a competitive edge. We build AI solutions that fight fraud, speed up risk decisions, and sharpen the customer experience.

Anti-money laundering

We develop AI-powered AML solutions for real-time monitoring and detecting complex laundering patterns that traditional systems might miss.

Fraud detection

Our team helps you leverage AI tools and ML algorithms to analyse vast amounts of data, identify suspicious transactions, detect fraud more quickly, and avoid costly losses.

Cybersecurity

We implement intelligent automation for continuous network monitoring and traffic analysis, enabling timely threat detection and rapid response.

Customer service

From AI chatbots to sentiment analysis and smart recommendations, we help personalise service and elevate the customer experience at scale.

Predictive modeling

We deliver AI-driven analytics that use operational, customer, and transaction data to forecast trends and enable sharper, data-backed decisions.

Risk management

We apply AI to optimise risk assessments, especially in loan approvals and credit scoring, improving accuracy and inclusivity for underbanked or thin-file customers.

Meet our fintech consulting expert

UK banks face mounting pressure from regulators like the FCA and PRA, rising customer expectations for seamless and personalised digital experiences, and a growing cyberthreat landscape.

In this environment, it’s no surprise that AI is gaining traction: it can boost compliance, enhance customer experience, strengthen cybersecurity, and often all at once.”

Uladzislau Antsipin

Ulad Antsipin

Technical manager

Why choose Vention as your strategic partner for banking software development

Commitment to quality

Poor software quality hinders business performance. We prioritise code quality, solid quality assurance strategies, and software testing to ensure your solution never becomes a business roadblock.

Transparent cooperation

With Vention, you always have a clear picture of the project’s progress. We stay in touch with project stakeholders through regular calls and reports on key milestones.

Wide technology expertise

Our engineers stay current on the latest tech trends, including frontend, backend, mobile, cloud, AI/ML, blockchain, and big data, bringing their expertise to each project.

We’re proud to partner with AWS, Google, Microsoft, and Salesforce, giving us a broad, trusted tech stack to solve your most complex challenges.

Agility as a core

Your needs evolve, and so do we. Our team adapts tools, workflows, and delivery models to match your requirements, today and as they grow.

Our customers say

The UK market isn’t short on banking software development companies, but true partners are few and far between. Here’s how our clients describe the Vention difference.

Geoffrey Teale

Head of Developer Experience, Upvest

“The most impressive thing is the way we work together. Vention engineers are fully integrated within Upvest and contribute to many aspects of our product. Vention engineers have challenged ideas and demonstrated a product mindset. Not only have they executed the tasks given, but they've also shown an understanding of the product's impact and developed the functionality taking into account the domain requirements and user experience.”

Operations Manager, Exness Global Limited

“What stood out the most about this company was their ability to rapidly understand our complex needs and deliver results with exceptional speed. Vention's efficiency in sourcing and hiring top talent while meeting our high standards was impressive and unique.”

Lee Tupper

CTO, Remotiv

“We were very happy with the initial specification, the design prototypes and the accuracy of time estimates on the sprints. The app was completed and we decided to continue the relationship.”

CTO, Union54

“Vention approached us when we concluded our Y-Combinator seed round - they made the process of scaling up the team painless and quick, whilst providing high quality resources. The breadth and depth of talent that they have on tap is impressive, account management is also excellent - if any issues arose, they were swiftly dealt with in a positive manner.”

Not sure where to start?

Start with our product discovery workshop. We’ll help you shape your solution and map out a clear, step-by-step delivery plan.

Check our offer

Your banking software compliance is in safe hands

We know how critical regulatory compliance is in the UK banking sector. Backed by deep fintech experience, we help you develop software that meets the highest security and compliance standards from day one.

From data encryption and access control to audit trails, penetration testing, and thorough documentation, our team guides and supports you in embedding future-ready compliance into every layer of your solution.

GDPR

PSD2

PCI DSS

AML/CTF

OWASP

IFSR

ISO/IEC 27001

You decide how we work

A project starts with a vision, shaped by your goals, business needs, budget, and timelines. With 3,000+ skilled engineers at your service, we’re ready to turn that vision into reality. The only question is: how would you prefer to collaborate?

01

IT staff augmentation can solve the skill gaps, tight deadlines, budget limits, or sudden scaling needs. Vention supplies experienced engineers who seamlessly integrate into your team and work under your direction.

02

Our self-organised, dedicated teams will take on most software development activities. The autonomous nature of pod teams will minimise the management burden on your shoulders, but they will still ensure you keep control over the project’s progress.

03

We handle the entire project end-to-end, from discovery and requirements specification to design, development, testing, and launch. You concentrate on critical business tasks while we keep you updated on the progress of your solution development.

Our end-to-end banking software development process

01

Discovery and analysis

Our team examines your business case and banking software needs. We carefully analyse your processes and craft a detailed requirements specification for your future banking software solution.

02

Design and planning

Following the defined requirements, we outline the architecture of the banking solution and UX/UI mockups. At this stage, we also create a step-by-step plan for all related development activities, tools, and deliverables, considering potential risks and challenges.

03

Software development

Our engineers handle the frontend, backend, and API development. We also set up the required databases and connect your banking software with the third-party systems you use.

04

Iterative testing

Following Agile software development methodologies, we perform rigorous functional and non-functional testing of every build to ensure no bug slips into production.

05

Deployment

We deploy your solution to the environment of your choice: cloud, on-premises, or hybrid. Our team deploys the solution to the target environment, ensuring a smooth rollout and stable performance in production.

06

Post-launch support

Upon request, we are always available to provide software maintenance services. Our team will handle performance and security monitoring, issue troubleshooting, and user support, ensuring your banking solution delivers maximum value.

Why trust us with your banking software?

Because we’ve done it before, and we know how to make it right for you

20+

Years ensuring engineering peace of mind to our clients

200+

Successful fintech projects

3K+

Experienced and skilled engineers on board

2

Weeks to embark on a project and set the wheels in motion

Guidance on selecting stacks that reduce both initial and ongoing maintenance costs

4.9/5

Clutch rating across 80+ verified reviews

On-site CTO support to bring leading insight at a fraction of the cost

ISO 27001-certified for top-tier security standards

Prefer to meet on-site?

We’d be delighted to meet in our London office to discuss your project face-to-face.

+44 207 117 284230
Churchill Place
London E14 5RE, UK
hello@ventionteams.com

Let’s craft banking software that empowers, not overwhelms.