L

LangChain

Builds open-source tools for making AI agents

Deployed Architect - Professional Services

Full-TimeUpdated on 10/20/2026
$185k - $260k+ Equity
Expert
Singapore
RemoteRemote role with up to 25% travel.
Solution EngineeringImplementation & Technical Account Management

About the job

Requirements
  • At least 7 years of experience in technical, hands-on customer-facing roles such as Solutions Architect, Deployed Architect, or Forward Deployed Engineer.
  • At least 3 years of experience designing and deploying production infrastructure on cloud platforms such as Google Cloud Platform, Amazon Web Services, or Azure.
  • Strong Kubernetes experience, including cluster design, autoscaling, and multi-zone deployments.
  • Experience with Infrastructure as Code using Terraform and Helm, and GitOps practices.
  • Knowledge of relational databases and in-memory data stores, including high availability, replication, backup strategies, and sizing.
  • Experience designing high-availability and disaster-recovery solutions.
  • Strong understanding of networking, security including single sign-on, role-based access control, Transport Layer Security, and secrets management, and observability using Prometheus, Grafana, or Datadog.
  • Experience with continuous integration and continuous delivery pipelines for infrastructure and applications.
  • At least 1 year of experience building production artificial intelligence or machine-learning applications or agents.
  • Strong experience with large language model frameworks such as LangChain or LangGraph for building agent-based applications.
  • Experience with short-term and long-term memory state-management patterns.
  • Experience designing and implementing evaluation frameworks for artificial intelligence applications.
  • Strong prompt-engineering skills, including optimization and A/B testing.
  • Experience with vector stores, retrieval-augmented generation patterns, and knowledge organization.
  • Experience with tool integration, application programming interface design, and error-handling patterns.
  • Strong Python and/or TypeScript development skills.
  • Customer-facing experience with enterprise customers.
  • Experience conducting technical assessments or infrastructure audits.
  • Strong communication skills and ability to explain technical concepts to diverse audiences.
  • Experience working cross-functionally with engineering teams, product teams, and customers.
  • A consultative approach to understanding customer needs, providing recommendations, and guiding implementation.
  • Ability to balance infrastructure architecture with agent development work.
  • Strong engineering background with hands-on development experience.
Responsibilities
  • Design scalable, highly available infrastructure for artificial intelligence platform deployments, including compute, storage, networking, security, enterprise integration patterns, Infrastructure as Code, multi-region high-availability and disaster-recovery strategies, and continuous integration and delivery pipelines.
  • Design multi-agent systems using different patterns and implement agent logic using modern frameworks such as LangChain and LangGraph.
  • Design comprehensive evaluation frameworks, optimize prompts using A/B testing, and guide deployment and operations.
  • Lead technical maturity assessments.
  • Work directly with enterprise customers to understand requirements and present recommendations.
  • Partner with Engagement Managers and Product and Engineering teams.
Desired Qualifications
  • The company welcomes candidates who are former founders and have the relevant skillsets, even if they have an unusual background.

About the company

LangChain makes free, open-source code libraries and a paid platform that software teams use to build and run AI agents, programs that use large language models to plan and finish tasks on their own. Its first library came out in October 2022, a month before ChatGPT, and in 2023 GitHub listed it among the open-source projects with the most contributors. Developers write agents with its LangChain, LangGraph, and Deep Agents libraries, which connect AI models to company data and software tools. Companies then pay for LangSmith, a platform that records each step an agent takes, scores its answers, and hosts finished agents. LangChain was founded in 2023 and is based in San Francisco.

Company Size

201-500

Company Stage

Series B

Total Funding

$160M

Headquarters

San Francisco, California

Founded

2023

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Simplify's Take

What believers are saying

  • Big customers rely on it: LangChain says half the 10 largest US companies run its paid LangSmith platform.
  • Equity has gained value: LangChain's valuation rose from $200 million in February 2024 to $1.25 billion in October 2025.
  • Sales and field engineers are in demand: 63 of LangChain's 101 open roles in October 2026 work directly with customers.

What critics are saying

  • AI labs build what LangSmith sells: Anthropic's Claude Managed Agents, launched April 2026, hosts agents for Notion and Asana.
  • Expect five office days a week: LangChain requires it of engineers living near San Francisco, New York or Boston.
  • Popularity outruns revenue: LangChain's libraries are free, so sales rest mainly on its LangSmith platform's 6,000-plus customers.

What makes LangChain unique

  • It isn't tied to one AI lab: a single LangChain interface lets apps switch among OpenAI, Anthropic and Google models.
  • Customers are also owners: Workday and Cisco use LangChain and, with ServiceNow and Databricks, invested in October 2025.
  • Developers already know its code: LangChain's open-source frameworks passed 1 billion downloads by March 2026, NVIDIA said.

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Benefits

  • Company Equity

Growth & Insights and Company News

Headcount

6 month growth

6%

1 year growth

2%

2 year growth

1%
PR Newswire
Oct 14th, 2026
Quantiphi and LangChain partner to scale production-ready Agentic AI for enterprises.

Quantiphi and LangChain partner to scale production-ready Agentic AI for enterprises. Oct 14, 2026, 09:02 ET MARLBOROUGH, Mass., Oct. 14, 2026 /PRNewswire/ - Quantiphi, an AI-native services company, and LangChain, the company behind the industry-standard LangSmith platform, today announced a strategic partnership to help enterprises adopt agent engineering at scale, from first use case to enterprise-wide rollout, and achieve measurable value. The partnership brings together LangChain's enterprise agent engineering platform, which includes LangSmith, LangGraph and Deep Agents, with Quantiphi's forward-deployed engineering (FDE) capabilities, enterprise AI transformation expertise and deep industry experience across financial services, insurance, healthcare and life sciences, telecom and others. Together, Quantiphi and LangChain will enable enterprises to build agentic systems within their secure environments while helping them retain control over their data, context and intellectual property. The joint approach is designed to preserve flexibility across frontier and open-weight models and cloud infrastructures, helping customers move from fragmented experimentation toward greater AI self-sufficiency without sacrificing portability or control. "Being successful with Agentic AI in the enterprise requires domain knowledge, active SME collaboration and curating data flywheels," Quantiphi Head of Frontier AI GTM Siddharth Kotwal said. "By unifying Quantiphi's engineering expertise with LangSmith platform by LangChain, we seamlessly embed agents into core business workflows, translating innovation into measurable enterprise value." The partnership will focus on three key priorities: * Governance and Observability: Establishing observability, evaluation and governance tools for agentic transformation in the enterprise. * Embedded Engineering: Forward-deployed engineering support to scale enterprise workflows and systems with LangChain's platform. * Continual Learning: Creating feedback loops that convert production traces, expert feedback and evaluation outcomes into continuously improving agent performance. "LangSmith gives teams visibility into how their agents actually behave in production," LangChain Vice President of Sales Darren Moffett said. "Quantiphi brings the implementation expertise to design, build and deploy those agents inside the enterprise. Together, we can take a customer from a working prototype to a production agent without them having to bridge the two on their own." The partnership is designed to help enterprises accelerate the path from pilot to production, standardize agent engineering across the organization and build lasting AI capability that becomes more valuable with every deployment. About Quantiphi Quantiphi is an AI-native services partner that empowers enterprises to own their intelligence and compound their competitive edge. Quantiphi builds sovereign AI foundations within an enterprise's secure environment, giving them absolute control over their data, context, IP and an AI foundation that is portable across a variety of cloud infrastructures. By getting their data AI-ready and shifting from fragmented experimentation to lean, sovereign engineering, Quantiphi enables true organizational self-sufficiency by transforming AI from a consumption expense into a high-ROI asset. Quantiphi measures success by tangible business outcomes, delivering the lasting AI capability that compounds their competitive edge. Learn more at Quantiphi.com and follow us on Linkedin, X, formerly Twitter and Instagram. About LangChain LangChain enables every company to own their intelligence. LangChain's open, model-agnostic harnesses give teams choice and control over how they build their agent architecture. LangSmith brings testing, deployment and monitoring together so teams can continuously improve their agents, compound intelligence and govern them at scale. Media Contact: V. Deshpande SOURCE Quantiphi

PR Newswire
Oct 13th, 2026
DXC and LangChain Advance Agentic AI Harnesses for Mission-Critical IT Operations.

DXC and LangChain Advance Agentic AI Harnesses for Mission-Critical IT Operations. Oct 13, 2026, 00:01 ET * Partnership brings together DXC's decades of experience operating mission-critical enterprise systems with LangChain's technology for safely and securely managing AI agent harnesses * DXC OASIS, built on LangChain's open-source LangGraph runtime, is scaling toward 125 customer environments across regulated industries and multiple geographies * Across 500 measured use cases, OASIS has reduced resolution time by 95% on average, with diagnostic accuracy of 92% or better ASHBURN, Va., Oct. 13, 2026 /PRNewswire/ - DXC Technology (NYSE: DXC), a leading enterprise technology and innovation partner, today announced a partnership with LangChain, the company behind the open-source LangGraph agent framework and LangSmith agent engineering platform, to advance governed agentic AI across mission-critical enterprise IT environments. The partnership builds on DXC's use of LangGraph within DXC OASIS, its intelligent orchestration platform and operating model for mission-critical IT operations. DXC is also licensing LangSmith to support the development, evaluation, and observability of OASIS agents. OASIS is already in production and scaling toward 125 customer environments across regulated industries and multiple geographies. Together, these capabilities help DXC build, orchestrate, evaluate, and continuously improve AI agents while applying the enterprise context, governance, human oversight, and continuous assurance required for critical technology environments. Bringing Agentic AI Into Mission-Critical Operations Through the partnership, DXC is using LangGraph and LangSmith to advance how OASIS agents are built, orchestrated, evaluated, and continuously improved. LangGraph provides the open-source framework for agent orchestration, including capabilities such as delegation, state management, and human-in-the-loop workflows, while LangSmith provides tooling for agent development, evaluation, and observability. OASIS integrates these capabilities to enterprise IT operations, enabling agents to respond to operational events, investigate issues in parallel, draw on specialized capabilities across technology domains, and bring people into the process when judgment or approval is required. This allows human experts to focus on higher-value decisions while agents provide the capacity and speed to address operational issues at scale. Across specific production use cases, filesystem incidents that previously took 53-90 minutes can be resolved in 3-6 minutes, while database performance incidents have moved from 2-3 hours to 5-12 minutes. Complex problem management that previously required 2-6 days has been reduced to 8-10 minutes. "Agentic AI has the potential to fundamentally change how enterprises operate their most critical technology, but models alone are not enough," said Dan Gray, President, Global Infrastructure Services, DXC Technology. "Across more than 500 measured use cases, OASIS has reduced resolution time by 95% on average, with diagnostic accuracy of 92% or better when validated against senior engineer judgment. Through our work with LangChain, we're bringing together advanced agent technology, operational expertise, and governance to put AI agents to work safely at enterprise scale." Scaling Agentic AI with Governance and Human Oversight A core focus of the partnership is helping enterprises expand the use of AI agents while maintaining appropriate governance and human oversight. Using LangChain technology, OASIS now enables agents to operate within defined authority while maintaining the controls required for mission-critical environments. Actions are assessed based on factors including reversibility, impact, verifiability, and an agent's track record. Sensitive actions can be paused for human approval before execution, while agent decisions, tool calls, and outcomes are traced to provide visibility into how agents operate. OASIS also grounds agents in the specific enterprise environments in which they operate. Agents can draw from system-specific and customer-specific information, DXC operational expertise, and vendor documentation, helping them reason using the context and requirements of each customer environment rather than relying solely on general model knowledge. By combining this enterprise context with defined governance policies and human oversight, OASIS enables organizations to expand the role of AI agents in production while maintaining accountability and control. "Agents are transforming the application layer for every business, and the enterprises pulling ahead are taking ownership of their agent stack," said Julia Schottenstein, Chief Operating Officer, LangChain. "That means adapting the harness to their business, grounding agents in proprietary context, and building the governance and continuous improvement loops that make agents reliable in production. We're proud to bring that model into mission-critical enterprise operations through our partnership with DXC." An Open Approach to Enterprise Agentic AI The partnership also supports an open approach to agentic AI designed to give enterprises flexibility and control as AI technologies evolve. OASIS is model agnostic and supports interoperability with third-party and customer-owned systems, enabling organizations to select different models for different workloads based on requirements including quality, cost, latency, and privacy. OASIS is also designed to continuously improve as it operates, using insights from agent executions to improve performance and incorporate lessons from individual scenarios into the broader system over time. Deployments can span public cloud, private cloud, dedicated, and sovereign environments without requiring a redesign of the underlying architecture. Customers retain control of their data, workflows, and the operational capabilities they build on top of the platform, while preserving flexibility across models, infrastructure, and deployment environments. DXC and LangChain detail their approach in a new technical white paper, DXC OASIS: The Harness for Mission-Critical IT Operations, which explores how organizations can operationalize AI agents while maintaining governance, accountability, and human oversight across mission-critical environments. About DXC Technology DXC Technology (NYSE: DXC) is a leading enterprise technology and innovation partner delivering software, services, and solutions to global enterprises and public sector organizations - helping them harness AI to drive outcomes at a time of exponential change with speed. With deep expertise in Managed Infrastructure Services, Application Modernization, and Industry-Specific Software Solutions, DXC modernizes, secures, and operates some of the world's most complex technology estates. Learn more on dxc.com.

PR Newswire
Oct 13th, 2026
DXC and LangChain partner on agentic AI, cutting IT incident resolution times by 95%

DXC Technology has partnered with LangChain to bring governed AI agents into mission-critical IT operations. DXC uses LangChain's LangGraph framework within its OASIS orchestration platform, and is licensing the LangSmith platform to develop and evaluate OASIS agents. OASIS is in production and scaling toward 125 customer environments across regulated industries. Across more than 500 measured use cases, DXC says it has cut resolution time by 95% on average, with diagnostic accuracy of 92% or better. Database performance incidents that took two to three hours now take 5-12 minutes. Agents act within defined authority, and sensitive actions can be paused for human approval. Their decisions and tool calls are traced. OASIS is model agnostic and can run on public cloud, private cloud, dedicated, and sovereign environments.

PR Newswire
Sep 30th, 2026
Querit Search API launches Code Search for AI Coding Agents.

Querit Search API launches Code Search for AI Coding Agents. Sep 30, 2026, 11:00 ET SINGAPORE, Sept. 30, 2026 /PRNewswire/ - Querit, a search infrastructure company purpose-built for AI, today announced the official launch of a dedicated Code Search capability for its core Querit Search API. By simply configuring a single parameter (Vertical=Code), developers can instantly pivot from general web search to a programming-focused search optimized for code generation, IDEs, and deep engineering workflows. Rather than layering a simple filter on top of general web search, Querit treats vertical retrieval as a first-class capability, giving AI coding agents verifiable technical context aligned with programming constraints and helping reduce failures caused by stale, incorrect, or mismatched information. Querit Search API: A Real-Time Information Layer for AI Agents The Querit Search API is a real-time information layer built for AI agents. It runs on Querit's proprietary web index, which covers hundreds of billions of pages, spans multilingual and cross-regional coverage, and draws on authoritative sources from regulatory bodies and standards organizations to technical documentation and professional communities. Unlike traditional link-by-link browsing designed for humans, Querit is built for an agent's end goal of task delivery. Rather than returning only a list of links, it delivers structured, model-ready search results and content designed to support reasoning, grounding, and verification. On FreshQA, a public benchmark for time-sensitive retrieval, the Querit Search API ranked #1 with 83.17% accuracy. The Coding Vertical: Retrieval Rebuilt for Coding Agents Many coding-agent failures come not from high-level reasoning, but from real-world engineering constraints, framework and dependency versions, runtime environments, complexity requirements, and long-tail errors. General-purpose search may surface results that are semantically relevant yet incompatible with those constraints, increasing the risk of incorrect code or failed execution. Querit rebuilt its coding vertical along three axes: * High-quality source prioritization: prioritize official documentation, API references, SDK manuals, and trusted developer communities such as Stack Overflow, while reducing the weight of stale or low-quality secondary content. * Constraint-aware retrieval: specialized models identify programming languages, framework versions, runtime environments, complexity requirements, and error signatures, filtering out results that are semantically relevant but incompatible with the task. * Adaptive, structured output: granularity scales from a single API how-to to an end-to-end task, delivering high-density, clean text within a strict token budget while preserving code blocks and parameters. In internal, programming-focused evaluations, 81% of the results Querit Search API returned were directly adoptable by coding agents across core tasks such as function generation, autocomplete, and debugging - scored under identical token budgets by an LLM-as-a-judge for intent and constraint satisfaction. Asked to "reverse a string in JavaScript without built-in methods or extra data structures, within a set complexity," for example, Querit prioritizes implementations that satisfy every constraint, where control-group results routinely do not. Available Today, Completing the Real-Time Information Layer for AI "The value of an AI agent is in what it can deliver," said Shawn Xu, Head of Global Product at Querit. "General search decides what an agent sees; deep, vertical retrieval decides how good its output is. We're building a real-time information layer that truly understands task intent - and coding is where that architecture proves itself." The Querit Search API and its code vertical are generally available worldwide today. Existing Search API users can enable Code Search without changing endpoints or reworking their integration, simply by setting the code vertical parameter in the request. Beyond direct API access, Querit supports the Model Context Protocol (MCP) and is integrated with agent frameworks and platforms including LangChain, Dify, RAGFlow, CAMEL-AI, Cherry Studio, Eigent, EigenFlux, Continua, ModelOS, and Atlas Cloud, so developers can call it inside the toolchains they already use. Together with the Contents API and Monitors API, the Search API forms a real-time information layer for AI spanning web search, content extraction, and continuous monitoring. Next, coding coverage will expand to major open-source repositories. Read the docs and start a trial at www.querit.ai. About Querit Founded in 2025 and headquartered in Singapore, Querit is a search infrastructure company purpose-built for AI that empowers developers to build systems capable of efficiently searching, retrieving, and processing information from the Open Web. SOURCE Querit

HTX
Sep 19th, 2026
It's trending: Jev by former OpenAI researcher, why is everyone rushing to use it?

It's trending: Jev by former OpenAI researcher, why is everyone rushing to use it? marsbitPublished on 2026-09-19Last updated on 2026-09-19 Abstract. The AI community is buzzing about Jev, a new "System One Model" from TypeSafe AI, designed for fast, structured judgment calls. Specializing in Yes/No, multiple-choice, and scoring tasks, Jev returns decisions with probabilities, ideal for high-volume, low-latency scenarios. Its popularity is surging as developers integrate it into AI agents to act as a low-cost, high-speed "judge" for tasks like evaluating if an agent's goal is complete, analyzing ad campaigns, or selecting the next action in a browser automation. For instance, it classified 724 real-time ads in about 40 seconds and is being used in projects like `fast-jev-compaction` to intelligently prune AI context. Early benchmarks from TypeSafe suggest dramatic speed and cost advantages, positioning Jev as potential infrastructure for the myriad small, intelligent decisions that could power future AI applications. Named after economist William Stanley Jevons, it embodies the "Jevons paradox": by making intelligent judgments radically cheaper, their overall usage may explode. Machine Heart Editorial Department Recently, a new name has emerged in the AI circle: Jev. Over the past few days, Jev has rapidly trended on X, GitHub, and Agent developer communities. Some used it to analyze 724 real-time ads in 40 seconds, some integrated it into Claude Code to clean up context, others used it for task acceptance testing of AI Agents, and developers have even connected Jev to browser Agents, using it to decide which button to click next or which page to navigate to. LangChain quickly followed up, releasing a Jev-as-a-Judge experiment on September 20th to test its performance as an Agent evaluator. Even OpenAI's "Reset God" Tibo promoted Jev. What exactly is Jev? Simply put, it's an AI specialized in handling "True/False questions." On September 15th, TypeSafe AI officially launched Jev, categorizing such models as "System One Models." According to TypeSafe's definition, these models receive a program state or text information and quickly return structured judgment results along with corresponding probabilities. HTX Group reported on Jev when it was first released. A few days later, its popularity has surged again, with related tweets garnering 37 million views. For example, suppose a customer service system receives an email. A developer can have Jev simultaneously judge: "Is this a sales lead?" "Is the user's sentiment intense?" "Does it require manual intervention?" "Does it belong to billing, technical, or sales issues?" Jev might return a set of probabilities: sales lead: 0.91; requires manual intervention: 0.12; technical issue: 0.83. The application can immediately proceed to the next step based on these numbers. Matija Sosic, Co-founder and CEO of Wasp, also posted a 45-second explanatory video about Jev on X. Currently, Jev offers three core judgment forms: Noul, Choice, and Score. Noul handles Yes/No type judgments, Choice selects answers from given options, and Score rates based on predefined criteria. Each result comes with a probability or confidence score, and multiple questions can be judged simultaneously based on the same input. This design quickly propelled Jev into a rapidly growing application scenario: acting as a "referee" for Agents. Today's AI Agents often need to complete dozens or even hundreds of consecutive steps. After writing code, calling tools, searching the web, and modifying files, the system still needs to judge whether the task is complete. This type of problem perfectly aligns with Jev's mode of operation. Developers can feed an Agent's execution logs to Jev and then ask: "Is the goal achieved?" "Does the result meet requirements?" "Are there any omissions?" "Which quality tier does the current result belong to?" LangChain's latest published experiment follows a similar approach. They had Jev, GPT-5.6 Luna, GPT-5.6 Terra, and Claude Sonnet 4.6 repeatedly score fixed Agent outputs. In this small-scale experiment, Jev averaged about 0.44 seconds per call with a cost of approximately $0.00035, while also demonstrating strong consistency in consecutive scoring. LangChain also emphasized that this is still an early, small-scale test requiring further validation with more Agents and real-world production tasks. A set of data from Jev's performance in ad analysis further boosted its popularity. In an experiment shared by developer Matthew Berman, the system used Jev to analyze 724 real-time ads from 37 brands, classifying them based on Hook, format, Offer, CTA, user cognitive stage, and the consistency between ad and landing page, resulting in a total of 8,724 judgments. According to the data shared by the developer, these tasks were completed in about 40 seconds, with a token cost of about 9 cents, and a median processing time per ad of about 216 milliseconds. This case has been included in the Jev community case library. Another project that spread quickly among developers is called fast-jev-compaction. This Claude Code plugin sends numerous tool calls and terminal outputs to Jev for scoring. Jev judges which content remains relevant to the current task, and then compresses the context sent to the model based on the results. After its release, the project quickly gained significant attention and spawned multiple ported versions. Browser Agents have also become a popular testing ground for Jev. Several open-source projects have already adopted the loop of "browser reads page -> generates candidate actions -> Jev selects action -> browser executes." In a public flight search demo, developers reported the entire search process took about 7 seconds, costing about $0.004. These applications well explain why Jev suddenly caught the attention of Agent developers. Many Agent steps are essentially high-frequency decisions: which button to click, which tool to call, whether this information is relevant, whether the current task is finished, whether a certain result passes acceptance. When these judgments occur hundreds of thousands or even millions of times a day, latency and cost quickly become integral parts of system design. In its own workflow benchmark, TypeSafe claims Jev can achieve up to approximately 193.6x speed improvement and 444.6x cost advantage on certain tasks. TypeSafe also clarifies that these results are at the high end of their estimated practical benefits, and the test set was prepared by the company's model capability team, so these figures are better suited as early references for the technical direction. The naming of Jev also hints at TypeSafe's ambitions. "System One" comes from the System 1 concept proposed by Daniel Kahneman in "Thinking, Fast and Slow," referring to the fast, intuitive judgment system. "Jev" comes from the economist William Stanley Jevons. TypeSafe borrows the meaning of the "Jevons Paradox": when the efficiency of using a resource significantly improves, its overall consumption may instead rapidly increase. In the context of AI, the implication is very clear. When the price of an intelligent judgment drops by orders of magnitude, developers will start incorporating AI in places they previously wouldn't have dared to call a model. Whether a log is important, what type an email belongs to, whether an Agent has completed its task, what cognitive stage an ad is in, which button to choose for a webpage action - these tiny judgments combined could form a massive volume of calls within the next generation of Agent systems. Jev is currently still in early access. Community experiments around it for browsers, code Agents, ad analysis, evaluators, and context management have just begun. But it has already raised a very interesting question: in future AI applications, what truly consumes the most intelligent computing power might be the tens of thousands of small judgments hidden within software processes. And what Jev aims to become is precisely the infrastructure behind these "intelligent if statements." Have you tried Jev yet? What do you think? Reference Links: