Jobs in the United States

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Added 2 mins ago
CO
Water Transmission and Distribution Planning Manager (Mgr. 3)
City of Seattle
Seattle, WA
- $129,247.2 to $193,849.92 USD / year
…such as resumes or cover letters, as part of a blind screening process used by the application…
Added 4 mins ago
AO
Supervisory Environmental Engineer
Architect of the Capitol
Washington, DC
- $143,913 to $187,093 USD / year
The Architect of the Capitol is seeking a highly qualified and experienced Supervisory Environmental Engineer to serve within the Office of Safety and Code Compliance, Environmental…
Added 5 mins ago
Staff Software Development Engineer – iOS
CVS Health
Remote, United States
…a highly skilled and innovative Staff Software Development Engineer – iOS to join our growing digital engineering organization. This Staff Engineering role offers the opportunity to drive…
Added 5 mins ago
Critical Facility Engineer
Meta
Kuna, ID
Meta is seeking a data center Critical Facility Engineer to join our Data Center Facility Operations team. Our data centers serve as the foundation upon which our software operates to meet…
Added 5 mins ago
Staff Engineer/Engineer-in-Training
Idaho Division of Human Resources
Lewiston, ID
As a licensed professional engineer, you will enter at the Staff Engineer level.
Added 5 mins ago
Engineer Manager I
Idaho Division of Human Resources
Lewiston, ID
Idaho Transportation Department is hiring two Engineer Managers, located in District 2, Lewiston, Idaho. These positions will plan, organize, and review staff, projects, and engineering…
Added 5 mins ago
Senior RAM Quality Engineer
Micron Technology, Inc.
Boise, ID
As an ID1 RAM Quality Engineer, you will help define and maintain quality standards, monitoring systems, and best-known methods that support defect detection and metrology operations. You…
Added 5 mins ago
Software Engineer, Systems ML
Meta
Boise, ID
Meta is seeking a Software Engineer to join our Systems ML Engineering team, focused on building and optimizing the machine learning infrastructure that powers Meta's products at massive…
Added 5 mins ago
Full Stack AI Engineer
Micron Technology, Inc.
Boise, ID
We are seeking an AI-Centric Full Stack Software Engineer to design, build, and support modern software solutions with a strong focus on AI-enabled applications and intelligent automation.…
Added 5 mins ago
Packet and Voice Engineer
Zayo
Boise, ID
The Packet and Voice Engineer will be part of an optimization team that focuses on migrations to reduce cost and grooms customer and network circuits when required for real estate network…
Added 5 mins ago
Senior Data Engineer
Highmark Health
Boise, ID
…incumbent and team will be involved in every aspect of the data process, from idea generation, analysis, design, build, and support, using the latest technologies and design…
Added 7 mins ago
VH
Supervisory Safety and Occupational Health Specialist
Veterans Health Administration
Hines, IL
- $100,059 to $130,080 USD / year
…consults with specialists from related occupations concerning work process modifications and recommends corrective or remedial safety…
Added 7 mins ago
PA
FIRE PROTECTION INSPECTOR
Pacific Air Forces
Eielson AFB, AK
- $84,439 to $109,777 USD / year
This position is Centrally Managed by the Civil Engineer Career Field, PCS cost will be paid IAW JTR and Air Force Regulation, DNRP is not authorized.
Added 7 mins ago
AN
PRODUCTION CONTROLLER
Army National Guard Units
Cedar Rapids, IA
- $61,722 to $80,243 USD / year
Establishes plans and schedules for maintenance and repair, using multiple process production methods and procedures for a variety of vehicles and equipment such as combat vehicles,…
Added 9 mins ago
UA
INTERDISCIPLINARY
U.S. Army Corps of Engineers
Rock Island, IL
- $41,386 to $118,221 USD / year
…of their role in the quality control/qualify assurance (QA) process. | Interpret plans and contract requirements and maintain continuing quality assurance operations. | Prepare, present,…
Added 9 mins ago
UA
Civil Engineer (STRUCTURAL)
U.S. Army Corps of Engineers
Vicksburg, MS
- $118,204 to $145,483 USD / year
About the Position: Functions as a structural engineer technical specialist and hydraulic steel structures (HSS) manager for various projects, including complex hydro power plant projects…
Added 11 mins ago
Staff Software Development Engineer – iOS
CVS Health
Remote, United States
…a highly skilled and innovative Staff Software Development Engineer – iOS to join our growing digital engineering organization. This Staff Engineering role offers the opportunity to drive…
Added 11 mins ago
Embedded Software Engineer (Associate, Mid-Level, or Lead)
The Boeing Company
Kirtland AFB, NM · Kirtland, NM
Boeing Defense, Space and Security (BDS) is looking for an Associate, Mid-Level, or Lead Embedded Software Engineer (Level 2, 3 or 4) to join our exclusive team at the Starfire Optical…
Added 11 mins ago
Embedded Test and Evaluation Engineer (Associate or Mid-Level)
The Boeing Company
Kirtland, NM · Kirtland AFB, NM
…skilled Associate or Mid-Level Embedded Test and Evaluation Engineer (Level 2 or 3) with a background in the setup, configuration, and maintenance of embedded system test environments to…
Added 11 mins ago
Project Controls Engineer 3/4 (Project Controls 3/4)
Los Alamos National Laboratory
Los Alamos, NM
Added 11 mins ago
R&D Engineer 1/2
Los Alamos National Laboratory
Los Alamos, NM
Education/Experience Requirements for the R&D Engineer 1: Position requires a Bachelor's Degree in Engineering from an accredited institution related to the occupation combined with 2 years…
Added 11 mins ago
Senior/Principal Systems Engineer - Technical Security Systems, Onsite
Sandia National Laboratories
Albuquerque, NM
The Technical Systems Security Department (9246) is seeking to find an Systems Engineer who will lead technical projects to enable Sandia to anticipate and prepare for changing global…
Added 11 mins ago
Senior/Principal R&D Mechanical Engineer - Interconnect Component Design, Onsite
Sandia National Laboratories
Albuquerque, NM
…Technologies Department is seeking a highly motivated R&D Mechanical Engineer to serve as a Component Engineer on a diverse and passionate team committed to excellence and mission impact.…
Added 11 mins ago
Senior/Principal R&D Electrical Engineer - Interconnects & Component Engineering, Onsite
Sandia National Laboratories
Albuquerque, NM
…Technologies Department is seeking a highly motivated R&D Electrical Engineer to serve as a Component Engineer on a diverse and passionate team committed to excellence and mission impact.…
Added 11 mins ago
Intern, R&D Graduate Summer - Materials Mechanics & Tribology, Onsite
Sandia National Laboratories
Albuquerque, NM
…collect and analyze data with the goal of understanding how process parameters affect microstructure, mechanical and tribological properties, and performance of tribological…

LangChain

Senior Backend Software Engineer, AI Observability & Evals Platform (NYC)

New York, NY, United States

$180,000 to $240,000 USD / year

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Job details

Pay: $180,000 to $240,000 USD / year
Experience: 5+ years of professional experience in backend engineering working on highly complex products
Posting language: English
Posted: Nov 2, 2026

Original 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 TEAM

The LangSmith team owns and builds LangChain's core platform for observability, evaluation, and production reliability of AI systems. From tracing and annotation to run rules, evaluations, and beyond, this team owns LangSmith end-to-end. If you want to define what great AI observability looks like at production scale, this is where that work gets done.

ABOUT THE ROLE

We are looking for a Senior Backend Engineer to join us. In this role you will be building the backend systems that power LangChain’s observability and evals platform. You will work on the core services that allow developers to monitor and evaluate their AI applications at scale. While the focus is on backend feature development, familiarity with fullstack or frontend engineering, performance tuning, and debugging production issues would be extremely valuable.

WHAT YOU'LL DO

Design, develop, and maintain backend services and APIs to support LangSmith’s tracing, monitoring, and evaluation workflows.
Collaborate on architectural decisions to ensure systems are performant and maintainable.
Optimize storage and query performance for high-volume observability and evaluation data.
Ensure system reliability through strong testing, monitoring, and alerting practices.
Troubleshoot and resolve production issues, performing root-cause analysis and implementing long-term fixes.
Create and maintain technical documentation, including system design and API references.
Work closely with full-stack engineers, product managers, and product designers on rolling out new features.

WHAT YOU'LL BRING

5+ years of professional experience in backend engineering working on highly complex products
Proficiency in one or more backend languages/frameworks, ideally Python or Go
Strong understanding of API design and building reliable data services.
Experience with high-throughput or mission-critical systems.
Demonstrated ability to optimize backend services for performance and reliability.
Experience with database systems (Postgres, Redis, Clickhouse), and cloud platforms (AWS, GCP, Azure)
Strong communication skills, with the ability to collaborate cross-functionally
Customer centricity and ownership mentality

Compensation

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

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.

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