Trading platform development services in the UK
Vention is a software development company that helps UK financial institutions and fintechs build, modernise, and scale trading platforms across the UK and global markets. With 200+ fintech projects delivered, including StoneX’s trading platform for Forex.com, Vention engineers understand trading workflows, financial instruments, brokerage operations, and the compliance expectations that come with strict FCA, MiFID, Open Banking, and GDPR requirements.
From Java-based trading platforms handling up to 20 million daily requests to Go-based microservices for investment transactions, we build systems designed for real-time performance, high-frequency trading data processing, operational resilience, and long-term scale.
Trading platform development scenarios we support
Scenario
Challenge you face
How Vention helps
Vention’s experience
Need for fintech team scaling
Your trading platform is serving customers and handling real-time transactions, but your internal team can’t keep up with the existing delivery needs, while hiring in the UK is slow and expensive.
Vention helps you address skill gaps and scaling needs by providing senior engineers based in Europe who seamlessly integrate into your existing agile workflows and contribute from the first sprints, without a long ramp-up.
In need of a reliable engineering partner, StoneX scaled Vention’s team up to 70 engineers to support more than 330,000 active retail accounts across 180 countries. Throughout a 12-year partnership, Vention engineers handled the backend and frontend of the trading platform, as well as the native mobile apps.
Need to build a trading platform from scratch
You’re building a new trading or fintech platform that needs to have FCA, MiFID, Open Banking, and GDPR requirements built into the system design.
Whether it’s a retail multi-asset trading platform, investment solution, clearing system, or digital securities product, Vention engineers take trading platform development end-to-end, aligning delivery with your goals.
For London-based startup Union54, Vention helped deliver an MVP to production within three months of inception and continued releasing new features regularly, allowing the client to attract new customers on an ongoing basis.
Need to modernise existing trading platform
Your trading or fintech platform requires a transformation to meet performance demands, evolving user needs, or changes in FCA, MiFID, Open Banking, or GDPR requirements.
From minor design enhancements to complete system re-architecture and platform migration, Vention engineers help fintech companies modernise trading platforms, keeping financial operations running and minimising disruption risks.
For Curve, a UK fintech, Vention split the PHP monolith into Go microservices to improve scalability, delivered backend enhancements, introduced CI/CD pipelines, built Node.js orchestrators using GraphQL/Apollo Federation, and integrated the frontend with React and Retool.
Vention’s trading platform development services
Service
What Vention does
Vention’s proven practice
Team scaling for trading platform engineering
Vention can swiftly scale your internal team with experienced engineers who understand financial instruments, trading workflows, and UK regulatory frameworks, including FCA, Open Banking, MiFID, and GDPR. From introducing new integrations and supporting asset-class expansion to delivering new mobile trading apps, Vention engineers become a nearshore extension of your in-house team, challenging assumptions and handling complex tasks.
StoneX scaled the Vention team to 70 engineers over a 12-year partnership to handle mobile application development for Forex.com and a flagship web application revamp.
Exness, a multi-asset brokerage, scaled the Vention team up to 20 engineers to work on several software development projects with different timelines and scopes of work.
And for DirectID, an Open Banking-related company, Vention engineers helped meet timelines for microservices and data science projects.
End-to-end regulated fintech product development
Vention is a reliable partner for developing fintech software solutions, including Python-based trading and Go-based investment platforms, brokerage systems, Java-based self-clearing systems, and custodial platforms, integrating features for real-time risk scoring and underwriting, secure verification and onboarding, share trading, and fractional investments.
We ensure full-cycle platform development, from architecture design, backend and frontend development to custom integrations, QA, and infrastructure setup, with FCA, MiFID, GDPR, and KYC/AML requirements built in.
For one of our clients, Vention supported an FCA-regulated digital securities platform, integrating user identity verification with NorthRow, as well as investor profiling and classification features.
For Upvest, Vention engineers helped build an investment API compliant with key European regulations, including FATCA, MiFID, AMLD5, and KYC requirements.
And for another client, Vention helped transition from an existing MVP to a Python-based, scalable, end-to-end trading solution with secure verification measures across multiple releases to meet strict regulatory constraints.
Real-time trading infrastructure development
Vention engineers build a scalable, resilient trading infrastructure that efficiently processes live market data and reliably executes trades in real time. We deliver:
- Core trading platform components
- Low-latency architecture development with high-performing Rust, Java, Go, or Python components
- Order management and smart order routing
- Market data benchmarking and feed handling
- Execution support for strategies such as POV, TWAP, and VWAP
- Anti-fraud systems
For StoneX, a leading provider of online trading services, Vention revamped their flagship web solution, ensuring it can perform at the highest speed and functional trading standard, easily sustaining up to 20 million inquiries every day.
Vention also helped Barchart deliver a solution that provides access to global exchange data, physical commodity prices, and advanced charting. In addition, we built the Historical Server API and introduced DynamoDB, empowering Barchart to handle millions of requests in just one second.
Investment API and wealth management platform development
With compliance built around FCA, MiFID, AMLD5, and KYC requirements, Vention develops the systems behind investment products, portfolio experiences, account infrastructure, and trading operations, including:
- B2B investment APIs
- Portfolio management systems and APIs
- Market data APIs
- Trading and execution APIs
- Clearing infrastructure APIs
- Fractional investment platforms
- Robo-advisors
For Upvest, Vention delivered a Go-based B2B investment API for share trading and fractional investment, built on 19 microservices, helping the client generate £80M+ in transaction volume and attract £14.9M in investment.
Vention also helped Vestwell scale its workplace investment platform, develop new modules, and implement integrations with the Voya and Franklin financial platforms, enabling the client to achieve 200% overall growth.
And for Altruist, Vention helped deliver a proprietary self-clearing system and executed the automated customer account transfer (ACAT).
Financial platform transformation and migration
Vention modernises legacy trading solutions and the infrastructure behind them, minimising the risk of operational downtime and enabling companies to continue growing with new, efficient stacks. Vention performs:
- Code refactoring
- Cloud enablement
- AI-enablement
- Monolith decomposition and microservices migration
- Tech stack version upgrade
- Integrations and new feature development
- Test automation setup
- CI/CD processes setup and optimisation
For Curve, a UK-based financial platform, Vention refactored legacy elements, split the PHP Symfony 3 monolith into Go microservices, upgraded the backend, and added new functionality, helping the client raise an additional £9.4M in a Crowdcube campaign.
Another example is TWINO, a Europe-based investment platform, that turned to Vention to redesign its web application after acquiring an investment brokerage services license.
And for IC Markets, the world’s largest Forex broker, Vention replaced a decade-old legacy CRM system and helped fully automate all core business processes, including KYC, lead generation, and account management.
Trading is already complex enough
Vention will take the technical burden of building trading software off your shoulders, while you enjoy controlled delivery and predictable results.
Why choose Vention for trading platform development
Aiming for long-term partnership
Companies across industries, including fintech, choose Vention as a long-term partner for stable delivery, predictable results, and deep domain expertise.
- 70 Vention engineers supported StoneX throughout a 12-year partnership
- Supporting Barchart’s trading and analytics solutions for over 7.8 years
Providing engineers with fintech and trading domain expertise
Vention offers a pool of 300+ fintech-savvy engineers located near the UK time zone (Poland, Lithuania, Slovakia, and Bulgaria), supported by UK-based Strategic Partners to oversee the project’s progress.
- Upvest says that “Vention came with some highly relevant references in the industry” and chose Vention for "understanding of the product's impact and domain requirements"
- Union54 says that “[Vention] made the process of scaling up the team painless and quick, whilst providing high-quality resources”
Prioritising regulatory compliance
Vention considers UK fintech regulatory requirements at every stage of software development from conceptualisation to launch.
- Vention helped deliver Upvest’s investment API compliant with key European regulations, including FATCA, MiFID, AMLD5, and KYC requirements
- Supported FCA-regulated digital securities exchange
Facilitating fintech funding and business growth
Vention delivers fintech solutions that help clients attract investment, effortlessly scale, and spark business growth.
- Upvest reached £80M+ transaction volume and raised £14.9M in Series A
- With Vention’s solution, Curve raised an additional £9.4M in a Crowdcube campaign
More Vention’s fintech success stories
Client testimonials
Vention has a 4.9/5 rating on Clutch across 100+ reviews
Vention clients value our high-calibre developers, structured delivery, smooth processes, and easy day-to-day collaboration, and often highlight that Vention engineers feel more like an extension of their team than an external vendor.
Geoffrey Teale
Head of Developer Experience at Upvest
“We were attracted to Vention because they have lots of relevant experience as well as a global footprint. Vention engineers are fully integrated within Upvest and contribute to many aspects of our product. 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.”
Jon Wade
CTO at Union54
“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.”
Anonymous
Co-Founder & Product Lead at an Online Trading Platform
“We originally thought of Vention as a way to get from point A to point B, but we now see them as a team that can grow as we grow. We fully intend to utilize their engineering resources as our platform continues to expand.”
Olga Dashkovets
Operations Manager at Exness
“What stood out the most about this company was their ability to rapidly understand our complex needs and deliver results with exceptional speed.”
Nauris Bloks
CTO at TWINO
“We consider us to be on the same team with the project and it feels like we are on the same page.”
James Schuler
Co-Founder of Kafene
“In the 3+ years we have worked with Vention, we have set up infrastructure that not only supports our current month-over-month growth but can also accommodate growth over 10 times what we are currently running.”
Tanya Zimmerli
Director of Product Management at StreetShares
“These are developers that we'd be happy to hire locally... super professional, really good developers.”
What clients achieve with Vention trading platform development services
Outcome
Real-life client stories
Platform scale and market reach
- Upvest successfully onboarded more than 500,000 users in the test environment
- StoneX’s platform can support up to 20M trading inquiries daily
- StoneX expanded its product offering to serve 32,000+ commercial, institutional, and payments clients, and 330,000+ active retail accounts across 180 countries
Financial growth
- Upvest raised £14.9M Series A investment during engagement with Vention
- During its partnership with Vention, Vestwell’s workplace investing platform raised £52M Series C funding and reached 200% growth
- Curve raised an additional £9.4M in a Crowdcube campaign
- Upvest’s investment API generated £80M+ in transaction volume
Faster delivery and release efficiency
- StoneX saved 64 days of testing per release with Vention’s bespoke QA automation framework
- Union54 had its MVP of a serverless fintech API with transaction-processing capabilities in production in 3 months
- Kafene reduced platform onboarding time from one to two months to one to two weeks
- Kafene accelerated pull request review time by 30% through AI-assisted workflows
Hear what Vention expert says on how to act when a trading project faces risks
“We often meet clients at a critical point. The project has started, but the original vendor can no longer deliver at the expected pace or quality. In those moments, Vention can step in quickly, stabilise the work, and help the client move forward with confidence.
In fintech and trading, especially, our engineers are used to complex systems, incomplete requirements, and high reliability standards. That experience helps us understand the existing codebase fast, identify what needs to change, and transform a stalled engagement into predictable delivery.”
Jamie French
Technical Engagement Manager at Vention, UK
Vention’s tech stack for trading platform development
Working across 30+ technology areas, Vention delivers trading platforms that withstand high loads, scale reliably, and make it easy to adjust for compliance requirements. And to ensure up to 15% delivery efficiency, Vention integrates approved AI-assisted coding, testing, and documentation tools.
Backend
Go, Java, Spring Boot, .NET/C#, Python, Node.js
Frontend
Angular, React, Vue.js/Nuxt, TypeScript
Architecture
Microservices, event-driven, serverless, multi-tenant
Real-time messaging
Kafka, Redis, WebSockets, STOMP.js, Lightstreamer, SignalR, ActiveMQ Artemis
Data and analytics
PostgreSQL, DynamoDB, MySQL, MongoDB, Elasticsearch, OpenSearch, R, Apache Spark
Cloud
AWS (Lambda, ECS/EKS, RDS, S3, DMS), GCP (GKE), Azure
DevOps
Kubernetes, Docker, Terraform, GitHub Actions, GitLab Pipelines, Datadog, Prometheus, Grafana
Mobile
Swift, Kotlin, React Native, Android SDK
Security
Spring Security, Keycloak, JWT, Vault, Comply-Advantage, IDNow, NorthRow
Integrations
Salesforce (APEX, Force.com), Stripe, gRPC, REST, ACAT, KYC/AML providers, market data feeds
Trading platforms and asset classes Vention supports
Category
Vention experience in relevant projects
Forex
StoneX project for Forex.com brand, Exness
Equities and stocks
Exness, TWINO, an FCA-regulated digital securities platform
Derivatives, including CFDs
Exness
Crypto
Exness, TWINO, an FCA-regulated digital securities platform
Commodities
Exness, StoneX, Barchart
Investment APIs
Upvest, Altruist
P2P Lending/ Lending-as-a-Service
TWINO, StreetShares
Spread betting
StoneX, City Index
Workplace investing
Vestwell
Payments and card processing
Union54, Kafene, Curve
Algo trading and EMS
An institutional EMS with real-time algo strategy resolution
Related services you may be interested in
Your next trading solution begins with one call with Vention
Whether you need to build the next brokerage platform, crypto exchange, investment app, or trading dashboard, Vention team ensures a safe journey from project discovery to launch.
Churchill Place, London E14 5RE, UK
+44 207 117 2842
FAQs
Does Vention have experience building fintech and trading platforms?
Yes, fintech and trading are the areas where Vention has profound experience.
Vention’s largest engineering engagement in trading is with StoneX, a leading provider of online trading services that serves 330,000+ retail accounts and 32,000+ institutional clients across 180 countries through the Forex.com brand. The engagement lasted over 12 years and, at peak, involved 70 Vention engineers.
Vention has also partnered with fintech and trading businesses like Altruist, the first all-in-one custodian, and Upvest, an investment API platform with £80M+ in transaction volume.
Through these projects, our teams have contributed to solutions spanning forex, equities, CFDs, crypto, investment APIs, and algorithmic trading, giving Vention engineers a practical understanding of what modern trading platforms require: low-latency performance, resilient architecture, operational reliability, and the ability to scale under pressure.
Do Vention engineers understand financial instruments and the trading domain?
Yes. Our engineers bring hands-on experience across order management systems, market data feeds, algorithmic trading strategies such as POV, TWAP, and VWAP, multi-asset routing, and UK regulatory compliance.
And clients value that combination: deep fintech expertise paired with the engineering skills needed to build, modernise, and scale complex trading systems. “What stood out the most about this company was their ability to rapidly understand our complex needs and deliver results with exceptional speed.” — Olga Dashkovets, Operations Manager at Exness.
Can Vention build an FCA-compliant financial platform from scratch?
Yes. We design financial platforms with UK and global regulatory requirements in mind, implementing FCA considerations where applicable.
For instance, Vention supported an FCA-regulated digital securities platform, integrating user identity verification with NorthRow, as well as investor profiling and classification features. We’ve also helped deliver Upvest’s investment API, built to meet regulatory requirements, including FATCA, MiFID, AMLD5, and KYC, across European markets.
Can Vention handle the performance requirements of real-time trading?
Yes, Vention always considers data flows, latency, resilience, and scaling strategies, and selects the right technologies, such as Kafka for streaming, Redis for caching, WebSockets for real-time data, and Kubernetes for elastic scaling.
For example, for Upvest, Vention helped onboard over 500,00 users in the test environment, and for StoneX, Vention supported a trading infrastructure that handles 20M inquiries per day.
Can Vention help transform a legacy trading platform without disrupting live operations?
Yes. We modernise trading platforms while keeping live systems stable. When StoneX’s flagship web platform needed an upgrade, our engineers helped revamp it while the business continued processing 20M trading enquiries per day.
We’ve taken the same approach with other financial platforms, including Upvest, where we helped turn a three-year-old product into a scalable investment API without interrupting live operations.
How quickly can Vention assemble a fintech engineering team?
Vention shares CVs within 48 hours and scales teams easily based on the project's scope, complexity, and delivery timeline.
With access to 3,000+ engineers, Vention brings in specialists with relevant fintech and financial infrastructure experience. For example, StoneX and Exness scaled dedicated Vention teams to 70 and 20 engineers, respectively.
Does Vention offer nearshore engineering teams in UK-compatible time zones?
Yes. Our engineering presence spans European hubs including Warsaw, Lodz, Krakow, Wroclaw, Vilnius, Sofia, Bratislava, and Gdansk, ensuring minimal time difference with our UK clients. Additionally, Vention allocates a dedicated UK-based Strategic Partner to oversee the project’s progress and ensure seamless communication.