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techroles

Senior Full Stack Developer, New York

ION Group iongroup.com Open · verified Oct 24, 2026
Hybrid New York Full-time Senior Full-stack Engineering

At a glance

Senior Full-stack Engineering role at ION Group. New York · full-time · $170,000–$200,000 base.

SalaryStated by ION Group
$170,000 – $200,000
Base salary for this role, in USD per year, as published in the posting.
This role, from ION GroupOur estimate for the market: $180,625–$227,663Median $205,000
Below the market median of $205,000 for senior full-stack engineering roles in New York.
Worked out from 66 postings that stated pay, median $205,000. Last updated Oct 22, 2026.
RoleFull-stack Engineering
SenioritySenior
LocationNew York
WorkplaceHybrid
EmploymentFull-time
Base pay$170,000–$200,000
PostedAug 6, 2026 · 2mo ago
Role brief

techroles summary, based on the employer's posting.

What you'll do

  • Lead the design and development of a structured-products trading platform with the client
  • Coordinate engineering work and contributor relationships so software reaches production
  • Plan and document technical delivery, then contribute hands-on as an engineer and architect
  • Guide project teams and work with other practices to deliver successful outcomes
  • Advise client stakeholders and build relationships that support future project work

What you bring

  • At least eight years of practical development experience with Python or C#
  • You have hands-on React experience, including current approaches to managing front-end state
  • You have designed AWS solutions using Terraform and Docker, and understand SQL and data persistence at scale
  • You hold a computer science degree or have equivalent experience, with strong knowledge of global markets and financial products

Who this fits

This senior role suits a hands-on technical lead who can guide engineers while working directly with clients. The position is hybrid in New York.

From the employer

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. Currently LAB49 is looking for a Senior Full-Stack Developer will play a critical leadership role on a key project for a strategic Lab49 client - a global asset management powerhouse. 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.

What you’ll be doing:  

  • Partnering with our client to lead the design and build of a structured products trading platform using modern 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. 

What you should have: 

  • 8+ years of solid hands-on experience with Python or C# development.
  • Hands-on 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.
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.
Opportunity

Full-stack Engineering work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Full-stack Engineering$170k+

Find me work

By the team behind techroles.

Find me work
Opportunity

Full-stack Engineering work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Find me work

By the team behind techroles.