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Ai First Fullstack Engineer Jobs (NOW HIRING)

Mochi Health

Senior Fullstack Engineer

San Francisco, CA · On-site

$330K/yr

If you want to do the most impactful work of your career, this is where to do it. Senior Fullstack ... Mochi is an AI-first engineering org. You will not only utilize frontier agentic models to ...

3Y

Staff Software Engineer, Fullstack

San Francisco, CA · On-site

$200K - $250K/yr

About Us At 3Y Health, we are building AI-driven software to empower healthcare providers and solve ... About the Role We are seeking a Fullstack Engineer to help us craft intuitive, high-performance ...

Baba

Fullstack Engineer

New York, NY · On-site

About Baba Baba is an applied AI lab modernizing risk and care delivery for people with Medicare ... About the Role Baba is seeking a Fullstack Engineer to own the end-to-end development lifecycle for ...

3Y

Staff Software Engineer, Fullstack

New York, NY · On-site

$200K - $250K/yr

About Us At 3Y Health, we are building AI-driven software to empower healthcare providers and solve ... About the Role We are seeking a Fullstack Engineer to help us craft intuitive, high-performance ...

Fundraise Up

Senior Fullstack Engineer

$125K - $165K/yr

You'll be joining a team where quality, mentorship, and mutual respect come first. About the Role ... At Fundraise Up, AI is a default tool, not an experimental one. We expect every team member to ...

Verneek AI

Typescript Fullstack Engineer

Manhattan, NY · On-site

Verneek is a deep-tech AI startup that is on a mission to build the most helpful AI experiences in ... As a fullstack engineer, you will play a crucial role in building complex AI and NLP models to ...

Calendly

Senior Full Stack Engineer, AI Scheduling

About the team & opportunity Calendly's AI Scheduling team is building AI-native solutions on top ... We're looking for a Senior Fullstack Engineer who is equally comfortable building polished React ...

SpangleAI

Senior Fullstack Engineer

Bellevue, WA · On-site

Spangle AI is a fast-growing startup focused on connecting AI-led discovery to real-time conversion. They are seeking a Senior Fullstack Engineer to build their next-generation merchant experience ...

Pyck GmbH

Fullstack-Umsetzung mit TypeScript: Entwicklung und Integration moderner Frontends oder Services ... Enge Zusammenarbeit mit Engineering, Design und Foundern in einer flachen Hierarchie, in der jeder ...

Zendesk

Senior Fullstack Engineer, Solve

Madison, WI · On-site

$123K - $162K/yr

We're seeking a Senior Fullstack Engineer to help build Solve - an AI-powered conversation engine that resolves customer issues across channels. You'll deliver end-to-end features spanning LLM ...

Zendesk

Senior Fullstack Engineer, Solve

Austin, TX

$121K - $160K/yr

We're seeking a Senior Fullstack Engineer to help build Solve - an AI-powered conversation engine that resolves customer issues across channels. You'll deliver end-to-end features spanning LLM ...

Upsellplus

Fullstack AI Developer

Manhattan, NY · On-site

What success looks like Within your first 90 days, you will: * Understand the product, architecture ... but exceptional fullstack engineers can learn the platform. AI-powered product capabilities

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Ai First Fullstack Engineer information

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$44.5K

$134.8K

$190.5K

How much do ai first fullstack engineer jobs pay per year?

As of Sep 13, 2026, the average yearly pay for ai first fullstack engineer in the United States is $134,771.00, according to ZipRecruiter salary data. Most workers in this role earn between $111,000.00 and $158,000.00 per year, depending on experience, location, and employer.

What is the difference between Ai First Fullstack Engineer vs Software Developer?

AspectAi First Fullstack EngineerSoftware Developer
Required CredentialsBachelor's in CS, AI/ML knowledge, coding skillsBachelor's in CS or related field, coding skills
Work EnvironmentTech companies, startups, AI-focused teamsVarious industries, tech firms, startups
Industry UsageAI-driven projects, product developmentSoftware applications, web development
Common Search/ComparisonYesYes

The Ai First Fullstack Engineer specializes in integrating AI and machine learning into fullstack development, often requiring knowledge of AI frameworks. Software Developers focus on building software applications across various domains. While both roles require strong coding skills, the Ai First Fullstack Engineer emphasizes AI integration, making it distinct in AI-centric environments.

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Ai First Fullstack Engineer jobs near you
Infographic showing various Ai First Fullstack Engineer job openings in the United States as of September 2026, with employment types broken down into 8% Internship, 84% Full Time, and 8% Contract. Highlights an 54% In-person, and 46% Remote job distribution, with an average salary of $134,771 per year, or $64.8 per hour.

FullStack Engineer, AI Observability & Evals Platform (LangSmith)

San Francisco, CA • On-site

LangChain, Inc
See more jobs at LangChain, Incexternal

$145K - $180K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted yesterday

Key responsibilities

  • Develop and implement key product features across the Go, Python, and Typescript stack.

  • Collaborate with product and design teams to iterate on new features and improve the product roadmap.

  • Ensure high engineering standards by writing clean, maintainable, and well-tested code while meeting project timelines.

Job description

About Us
At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.
With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we're at a stage where we're continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world.
Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater.
About the role
We're looking for a Fullstack Engineer to work on LangSmith, our commercial AI observability and evals platform product. In this role, you'll have the opportunity to build new features and functionality for the platform while working close enterprise customers, developer end-users and internal stakeholders.
What you will do
  • Develop and implement key product features working across our entire Go, Python, and Typescript stack
  • Collaborate closely with product and design teams to iterate on new features and enhance the product roadmap
  • Drive aggressive project timelines while ensuring high engineering standards are being met by writing clean, maintainable, and well-tested code

How to be successful in this role
  • 2+ years of experience in software engineering working on complex platform products
  • Fullstack engineering experience with Go or Python on the backend and React + Typescript on the frontend
  • Solid understanding of database systems, particularly Postgres and Redis
  • Experience designing and scaling APIs, preferably in high-performance, data-intensive applications
  • Strong ownership and a "get stuff done" mindset - comfortable shipping fast and iterating based on user feedback
  • Strong communicator with the ability to collaborate closely with various internal stakeholders and engage directly with our top-tier customers
  • Bonus: Experience with AI/LLM-powered applications, developer tools, or observability platforms

Compensation
Annual salary range: $145,000-180,000 USD
Compensation Philosophy:
We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. Actual compensation and offerings will vary based on role, level, and location. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.
Benefits
Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.

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