ION Group
Fintech & PaymentsDirect Lever career site

Senior Agentic Developer, LLM-Native / Enterprise, NY

Location
New York City, NY · On-site
Job type
Full-time
Level
Senior
Listed
30 days ago

Skills & highlights for this role

  • large language models
  • AI-assisted software development
  • legacy system modernization
  • production-grade enterprise code

Also useful

  • financial services systems

About the role

Lab49 is a specialist strategy, design, and technology consulting company dedicated to the financial services industry. We were founded in 2002 to fill a need in the Financial Technology marketplace for high-end execution and reliable delivery of technology projects.

Lab49 is now looking for a Senior Agentic Developer, an engineer who doesn’t just use AI tools but writes software through them.

We are looking for bright, curious engineers who thrive on continuous learning, experimentation, and delivering tangible results for clients. This role is ideal for developers interested in evolving toward an FDE-style mindset, combining deep technical expertise, customer impact, and AI-native ways of working.

This is not a role focused on “adding AI features” or “building AI platforms.” Instead, we are seeking an experienced developer who generates production-grade enterprise code using large language models as a primary interface, particularly while modernizing or extending complex, legacy systems in highly regulated environments.

You will operate as a vibe coder in the best sense of the term: combining deep engineering intuition, strong system design instincts, and fluent command of LLMs to move faster than traditional development workflows, without compromising rigor, compliance, or reliability.

Read the original posting

From ION Group's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

Rolev.ai is a job search and application tool for US job seekers. For this Senior Agentic Developer, LLM-Native / Enterprise, NY role at ION Group, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.

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Common questions

Where is the Senior Agentic Developer, LLM-Native / Enterprise, NY job at ION Group located?

This Senior Agentic Developer, LLM-Native / Enterprise, NY position at ION Group is located in New York City, NY (On-site). Always check ION Group's application page for specific state eligibility or relocation policies.

What qualifications are required for Senior Agentic Developer, LLM-Native / Enterprise, NY at ION Group?

For the Senior Agentic Developer, LLM-Native / Enterprise, NY role, ION Group highlights experience with large language models, AI-assisted software development, legacy system modernization, production-grade enterprise code. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Senior Agentic Developer, LLM-Native / Enterprise, NY position at ION Group?

This listing links directly to ION Group's Lever application page. You can apply directly on ION Group's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Lever application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.