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L5-L6 Senior Full Stack Engineer/ RAG

  • Location New York City, NY
  • Job Type Direct Hire
  • Posted August 27, 2026

Role: L5-L6 Senior Full Stack Engineer / RAG

Location: Onsite 5 days a week in Flatiron District, NYC

Salary: $150K–$200K + equity

Clutch Creative is a rapidly growing staffing agency. We support our clients by identifying unreachable talent that helps their businesses grow.

Our candidates work with us because they know we have the best opportunities available to them and will help them navigate their next career move.

We care, we're honest, and we hustle—that's what makes us Clutch.

Our client is building the research intelligence layer for quantitative finance — the platform where investment hypotheses are formed, tested, and refined through a tight loop of data, models, and AI. They are a small founding team with deep domain expertise, a working product, and the conviction that the future of investment research looks nothing like its past.

As one of the first engineering hires, you will help build the engineering team from the ground up. You will set the technical culture, make foundational architecture decisions, and own the craft of the product in a way that is rarely possible at any other stage. The work spans LLM orchestration, vector search, financial data pipelines, and a research UX that demands precision.

They are looking for an engineer at the L5 or L6 level: someone who has shipped production systems at scale, thinks carefully about tradeoffs, and brings real taste to both code and product. Prior experience in fintech or quantitative research is not required — intellectual curiosity and engineering rigor are paramount.

Early work will span backend performance, frontend product quality, SecOps, deployment, and infrastructure reliability. As the team grows, you will have the opportunity to define your area of deepest ownership.

WHAT THEY'RE LOOKING FOR

  • Experience: Significant professional software engineering experience (typically 5+ years) with clear evidence of increasing scope and ownership.
  • Full Stack Capability: Production-grade full stack ability to own features end-to-end (backend-heavy is acceptable, but comfortable working in the frontend as needed).
  • Architecture & Systems Thinking: Strong capability to design clean, extensible architectures and make pragmatic tradeoffs under uncertainty.
  • Security & Infrastructure: Deep awareness of security in real-world deployments (handling sensitive data in on-prem, air-gapped, or regulated environments), thinking in terms of threat models. Experience operating across cloud, multi-cloud, hybrid, and on-prem environments.
  • Core Tech Stack: Strong Python backend fundamentals (API design, async patterns, data modeling, performance profiling) and comfort with modern frontend frameworks (React/TypeScript preferred).
  • AI/RAG: Genuine comfort working with LLM APIs and retrieval-augmented systems as a primary engineering surface.
  • Soft Skills: Strong communication, judgment, ability to navigate ambiguity, and decision-making skills in a high-trust team.

WHAT TO EXPECT

  • Ownership & Equity: Early-stage cash compensation complemented by meaningful equity and ownership in the business.
  • Direct Impact: Direct exposure to the full business, including strategy, product direction, and customer conversations.
  • Dynamic Environment: A fast-paced setting where priorities shift with learning, offering a direct role in shaping product direction.
  • Culture: High-standard, collaborative colleagues focused on driving major impact.

Please read: Contact from Clutch employees will always come from the domain @clutchnow.com ONLY and we will always provide a phone number where you can contact us. Clutch will NEVER present a job offer without a verbal or video interview and we will never ask you to transfer or pay money to get hired. If you are skeptical about any email or job offer, please reach out to us directly.

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TESTIMONIALS

"I have had a great experience with the team at Clutch—from interviewing to placement, they listened to my needs and found me what I was looking for. They are excellent to work with on an ongoing basis, and I trust that when I am looking for additional freelance work, they'll help me land it!"
LindsaySan Francisco, CA
"I had a fantastic experience with Clutch. They had great opportunities I would not have otherwise found. After interviews with three different companies, I finally found the perfect match. I worked with Cody, Ann Li, and Ginger. They were all professional, kind, and patient. Cody prepped me well for each interview. I can't thank Clutch enough!"
ClaireKillingworth, CT
"I loved working with Clutch. They've gotten me a graphic design opportunity very quickly. The process started with a phone call and I was able to secure a contract position within 2 weeks of the initial call. I'm looking forward to working with this agency in the future."
JeffSan Francisco, CA
"Absolutely 100% would suggest Clutch to anyone looking for a position in the digital, creative, and marketing world. Thank you for all of your professionalism and hard work! Thank you Cody and the team at Clutch for all of your professionalism and handwork (and for overall being awesome human beings)!"
EleanorPhiladelphia, PA
"Graduating and finding job openings during the pandemic was extremely challenging and at times discouraging. Cody was so helpful when it came to finding roles for me and he was so easy to get in touch with. He ended up helping me book a great freelance gig with a mid sized agency that got my career off the ground! I definitely plan on using Clutch to find jobs in the future!"
AllieBedford, PA
"I have to say out of all the recruiters in Philadelphia none of them have proved to be as successful, relentless and passionate about getting their client a job. I had the pleasure of working with Cody Michalowski and I couldn't have been happier at the level of commitment he put in. Not only did he meet my expectations, but exceeded them in finding me a position in only 2 weeks! Thank you Cody and the team at Clutch for being awesome at what you do!"
BenNovi, MI
"Clutch lives up to their name. They work arduously to find the right fit and are there when you need them. Always. My experience with them as been nothing less than spectacular. They shouldn't be bundled with the word "recruiter" or "headhunter". Their personal approach gives you hope and confidence that they will solve any problem at any cost. They redefine the job hunting experience."
KenElmira, NY
"Clutch is clutch, pun intended, but also an authentication to who they are as a company. Clutch is a great creative staffing firm. I worked with Cody and he is fantastic! He was always available when needed and offered the perfect amount of guidance, not pushy or insistent. I highly recommend them."
HarrietPhiladelphia, PA

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