Ion
Ion2mo ago

Principal Full-Stack Developer, New York

United StatesUnited StatesFull-timelead
EngineeringFull
0 views0 saves0 applied

Quick Summary

Overview

Lab49 is an award-winning specialist consultancy that creates bespoke technology in partnership with the most important companies in finance.

Technical Tools
EngineeringFull
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.
  • Partnering with our client to lead the design and build of a structured products trading UI using modern web development technology and techniques. You will be responsible for managing engineering deliverables, and the relationships with other key contributors to deliver great software. 
  • Design, document, and plan for the technical implementation and delivery of working software into production. 
  • Act as a hands-on engineer and architect to support ongoing project work. 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. 
  • 10+ years of solid hands-on experience with Python or C# development.
  • 5+ years of experience with React and modern front-end state management.
  • Extensive experience architecting solutions on AWS, including Terraform and Docker.
  • Proven track record operating effectively inside large, complex organizations (e.g., Tier-1 Investment Banks or Global Asset Managers).
  • Deep understanding of SQL and data persistence strategies at scale.
  • BS in Computer Science or equivalent experience.
  • Expert-level knowledge of, and strong demonstrated interest in, global financial markets and financial products.
  • Listing Details

    Posted
    February 3, 2026
    First seen
    March 25, 2026
    Last seen
    April 11, 2026

    Posting Health

    Days active
    16
    Repost count
    0
    Trust Level
    39%
    Scored at
    April 11, 2026

    Signal breakdown

    freshnesssource trustcontent trustemployer trustcandidate experience
    Ion
    Ion
    lever
    Employees
    5
    Founded
    2025
    View company profile
    Newsletter

    Stay ahead of the market

    Get the latest job openings, salary trends, and hiring insights delivered to your inbox every week.

    A
    B
    C
    D
    Join 12,000+ marketers

    No spam. Unsubscribe at any time.

    IonPrincipal Full-Stack Developer, New York