Principal Web UI Developer (React), Budapest

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.

Lab49 is seeking a Principal Web UI Consultant to join our Budapest team.

What You’ll Be Doing

• Partnering with our client to lead the design and build of user experiences 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 inside our client environments.

• 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 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 (e.g., Angular, React, 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 or 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.

Why Lab49?

Lab49 is an established partner for most financial institutions on Wall Street. You will gain exposure into a variety of environments, business domains, technologies, and people. Your ability to bring drive and creativity to the role will be the key component to success at Lab49. The broad and intense exposure to a variety of challenges accelerates your career growth, and Lab49’s structure is designed to enable you to learn and grow as an engineer and consultant.

Lab49/ION is committed to maintaining a supportive and inclusive environment for people with diverse backgrounds and experiences. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business.

Lab49/ION adheres to an equal employment opportunity policy that prohibits discriminatory practices or harassment against applicants or employees based on any legally impermissible factor.