WFH.teamOpen app
Back to remote jobs
Remote job detail

Senior Frontend Engineer, AI Observability & Evals Platform

Langchain

LocationUnited States
SenioritySenior
CompanyLangchain
Verified recentlyChecked today
Compensation

$180k-$240k

Salary details are shown when available from the source listing. Sign in before applying so the role can be reviewed against your resume, salary goals, seniority, timezone, and location eligibility.

Requirements and working style

Decision details from the source listing

Education

Ideally a degree in computer science or a related field

Schedule

unknown

Benefits stated
Medical coverageDental coverageVision coverageFlexible vacation401(k) planMeals on in-office days in the USMeaningful equity

These fields are normalized from the employer's text. Confirm details on the employer site before applying.

WFH.team analysis

What this posting tells you

Senior frontend engineering role building features for LangSmith using React and TypeScript. Listed as remote in the US; the description’s remote-location sentence is incomplete.

Role lane

Backend, Design and creative, Frontend, Healthcare admin, Marketing, Operations, Product, QA and testing, Software

Where you can work

United States

Working hours

Timezone overlap is not stated.

Arrangement

Senior · full_time

Required signals
ReactJavaScriptTypeScriptFrontend engineeringBabelViteWebpackNPMYarnREST APIsJWTs
Preferred signals
Computer science fundamentalsComputer science or related degree
Confirm before applying
  • Required timezone overlap is not stated
Market context

Backend hiring on WFH.team

4,624active related roles
1,394new in the latest period
193.9jobs per 100 candidates
$198kmedian of comparable listed ranges

This role's listed pay is near the median among 200 comparable roles shown here. Category counts come from WFH.team's latest published remote job market snapshot.

Explore the remote job market
Skills and signals
ReactJavaScriptTypeScriptFrontend engineeringBabelViteWebpackNPMYarnREST APIsJWTsComputer science fundamentalsComputer science or related degreeRemote - US
Job description

Senior Frontend Engineer, AI Observability & Evals Platform at Langchain

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

This position can be based remotely in

We’re looking to bring on an experienced frontend engineer to develop and enhance new features on LangSmith, our enterprise platform product for LLM application observability, testing, and debugging.

What you will do

  • Develop new user-facing features using React & Typescript
  • Build reusable components and front-end libraries for future use
  • Translate designs and wireframes into high-quality code
  • Optimize components for maximum performance across a vast array of web-capable devices and browsers
  • Collaborate with fullstack and backend developers and UX/UI designers, to enhance usability

WHAT YOU WILL BRING

  • Extensive front-end engineering experience with strong proficiency in React, JavaScript and TypeScript
  • Hands-on experience with front-end development tools like Babel, Vite, Webpack, NPM, and Yarn
  • Familiarity with REST APIs and experience working closely with fullstack and backend engineers
  • Knowledge of modern authorization mechanisms, such as JWTs
  • A passion for user experience, design and building clean, engaging, and intuitive interfaces
  • Strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders
  • The DNA to thrive in a start-up, fast-paced environment. You view unstructured environments as an opportunity to make the most impactful work and to help define what's next.
  • An ownership mind-set. You are self-driven and look for opportunities to make an impact.
  • Strong computer science fundamentals, ideally with a degree in computer science or related field.

Compensation

Annual salary range: $180,000-$240,000 USD

Compensation Philosophy

We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks.

We are hiring for this role across a range of scope, and the compensation band reflects that. Your offer depends on what we learn about your impact, craft, leadership, and communication during the interview process. We will tell you early where you’re tracking and talk comp with you before offer stage. 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.

Company context

Working remotely at Langchain

Langchain is hiring for 5 active remote roles, with remote-friendly openings, application links, and job details refreshed from the public remote job inventory.

Headquarters
United States
Team size
51-200
Founded
2022
Remote policy

Remote hiring signal is inferred from active confirmed-remote job listings.

Application process

Review current openings on LangChain's official careers page before applying.

Node.jsJavaScriptPythonFlaskFastAPITypeScriptStreamlitGradio
Research Langchain