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Salary
≈ $137k – $269k per year (Estimated)
Location
In office (New York)
Seniority
Staff · 10+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 15, 2026. First seen by Alion on Feb 7, 2025. ION Group scores C on the Alion truth index.

Overview
Company
Impact
Profile match
ION Group is a financial technology and data company headquartered in London that provides trading, analytics, treasury, commodities and core banking software, plus credit information services, to banks, central banks, trading firms, governments and corporations. Built largely through acquisitions, it reports more than 13,000 employees in over 80 offices serving some 4,800 customers, with businesses that include the Italian banking IT provider Cedacri, the capital markets consultancy Lab49 and the news service Debtwire. It hires Java, .NET, Python and React developers and consultants, graduate software, cloud and AI engineers, security and compliance specialists and financial reporters.

Lab49 is an award-winning specialist consultancy that creates bespoke technology in partnership with the most important companies in finance. We were founded in 2002 to bring Silicon Valley solutions to Wall Street’s door. Since then, we have worked on successive waves of technological change, including distributed computing, high-speed automation, enterprise UX and digital distribution (for which Lab49 was among the first significant practices established on Wall Street), DevOps, cloud and data science.

Today, we are an established partner in financial markets, having delivered hundreds of projects for clients including all the world’s tier-one investment banks and many of the largest buy-side firms globally.

Being part of Lab49 means bringing your drive and creativity into an environment where your contributions will make immediate impact. Engineers will work in cross functional teams, consulting directly with our clients, shaping not only technical solutions to business problems but delivering them into production.

The Lead UI Engineer will play a critical role on key projects for Lab49 clients. Working in a collaborative and innovative project team, with direct client-facing interactions, you will have an opportunity to apply your skills and expertise to design innovative applications that solve complex problems and enhance performance and productivity at our marquis clients.

What you’ll be doing:

  • Partnering with our client to lead the design and build of a marketplace experience using modern web development technology and techniques. You will be responsible for managing a team of UI engineers, and the relationships with other key contributors to deliver great software.
  • Managing the technical solution design for a green field application to help launch a startup financial services business. Design, document, and plan for the technical implementation and delivery of working software into production.
  • Contribute to the Interactive Practice: The UI engineering team within Lab49. This means bringing your passion and opinionated view of what makes for great UI development to the wider UI engineering community within Lab49 and helping build the culture of high-quality software development that enables our ability to deliver on client engagements.
  • Act as a hands-on engineer and architect to support work across the Interactive front-end Interactive Practice, from small initiatives to the design and build of complex systems. Lead and actively participate in projects, serving as a role model for project teams and collaborating with other practices to ensure successful outcomes.
  • Partner with client counterparts and stakeholders to maintain and build relationships, maintaining a commercial approach. Develop strong relationships with clients as a strategic partner and technical advisor, contributing to expanding our footprint and securing follow-on work.
  • Partner with the Lab49 business development team to create and deliver compelling pitches, defining problems, captivating clients, presenting solutions, and working out engagement terms. Build and reinforce your professional network through active engagement in industry events, public speaking opportunities, etc.
  • Assist in developing effective management skills and practices among line managers in the Engineering practice, fostering strategic career planning and development for the engineering team as a whole.

What you should have:

  • 10+ years of hands-on experience designing and building complex, commercial-grade software applications, with 5+ years leading Agile teams.
  • Proven track record in effective leadership, problem-solving, and decision-making.
  • Experience designing holistic technical solutions, managing integrations with third party services and APIs, and deploying applications into production.
  • Experience managing project teams and interacting with clients in finance, consulting, or start-up environments.
  • A passion for technology and innovation, staying informed about the latest industry trends through active participation in industry events, meet-ups, and more.
  • Experience with JavaScript and TypeScript, with modern frameworks specifically React although experience with similar frameworks is welcome (e.g., Angular, Vue, or others).
  • Experience with one or more cloud platforms with a working understanding of contemporary SDLC practices such as continuous delivery.
  • Strong understanding of the value of testing, quality, continuous integration, source control, and code reviews.
  • Experience in capital markets, financial markets/products, consulting is highly desirable.

Bonus points:

  • Backend engineering experience, ideally with .NET, Java, Python
  • Experience working with common financial products such as Bloomberg, Symphony, or other tools commonly used in a finance context such as Salesforce, Databricks, and others.
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