Principal Full-Stack Developer, Budapest

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  • Ion
  • Budapest, Budapest
  • Full-Time
  • 2 days ago
  • $180,000 - $220,000
Published
May 18, 2026
Location
Budapest, Hungary
Job Type

Principal Full-Stack Developer, Budapest: our view in 3 lines...

  • The Role: A senior engineering leader who will lead a team to design and deliver bespoke digital products for major financial institutions.
  • The Person: Lead and mentor a team of engineers in a cross functional project, consult directly with clients, and deliver modern digital products into production.
  • Requirements: Experience working in cross functional teams, client-facing consulting, and building modern digital products is required.

Job Description

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 Principal Full-Stack Developer will play a critical leadership role on a key project for a strategic Lab49 client. Working in a collaborative cross functional project team, with direct client-facing interactions, you will have an opportunity to lead a team of engineers and build modern digital products.
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.
 
Key Skills
? Key Skills in dark blue have been inferred based on similar industry roles
Javascript Node.js React HTML/CSS REST Apis SQL Unit & Integration Testing CI/CD UX Devops Leadership

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