Full-Time

Software Engineer

Search Quality and Ranking

Posted on 8/14/2025

Notion

Notion

5,001-10,000 employees

AI-powered workspace for notes and projects

Compensation Overview

$160k - $220k/yr

San Francisco, CA, USA + 1 more

More locations: New York, NY, USA

Hybrid

On-site required on Mondays, Tuesdays, and Thursdays; some roles may require additional in-office days.

Category
Software Engineering (2)
,
Requirements
  • You have experience in a technically challenging domain (latency sensitive systems; recommender systems; etc) and are energized by learning new technologies.
  • Holistic Problem Solver: You approach problems holistically, starting with a clear and accurate understanding of the context. You think critically about the implications of what you're building and how it will impact real people's lives. You can navigate ambiguity flawlessly and decompose complex problems into clean solutions.
  • Communicate with Care: You communicate nuanced ideas clearly, whether you're explaining technical decisions in writing or brainstorming in real time. In disagreements, you engage thoughtfully with other perspectives and compromise when needed. You are a lifelong learner and invest in both your own growth and the growth, learning, and development of your teammates.
  • Impact Driven: You care about business impact and prioritize projects accordingly. You understand the balance between craft, speed, and the bottom line. You understand that reach comes with responsibility for our impact—good and bad. Work isn't a solo endeavor for you, and you enjoy collaborating cross-functionally to accomplish shared goals.
  • You don’t need to be an AI expert, but you’re curious and willing to adopt AI tools to work smarter and deliver better results.
Responsibilities
  • You will build and maintain our core search APIs, used heavily by internal teams, external users, and agents.
  • You will build new ranking models that bring meaningful quality improvements while keeping latency low (we care a lot about latency here!).
  • You will build out our core machine learning infrastructure (we use Anyscale / Dynamo).
  • You will improve ranking across all sorts of different recall sources, like Elasticsearch and vector databases.
Desired Qualifications
  • 3+ years of experience in one or more of the following areas: machine learning, recommendation or ranking systems, natural language understanding/generation or artificial intelligence.
  • Experience building products using large language models, embeddings or other machine learning natural language technologies.
  • You understand how parts of a system fit together, from the user interface to the data model. You are familiar with relational database systems like Postgres or MySQL, and have experience building products from ground up.
  • Elasticsearch experience in knowledge-search domains
  • You’re proficient with data pipeline technologies: Spark, DBT, etc.
  • You're proficient with any part of our technology stack: React, TypeScript, Node.js, and Postgres.
  • You have experience driving teams toward shared goals and can balance business priorities with individuals’ strengths, areas of interest, and career development goals.
  • You've heard of computing pioneers like Ada Lovelace, Douglas Engelbart, Alan Kay, and others—and understand why we're big fans of their work.

Notion provides a centralized workspace that combines notes, documents, project management, and customizable tracking into one platform. It allows teams to write, plan, and share work using a drag-and-drop interface to build pages, add labels and tags, and organize information. An AI-powered Q&A feature helps users get quick answers and centralizes knowledge. The product is offered on a freemium model, allowing anyone to start for free and upgrade as teams grow or need more features. Notion differentiates itself by merging multiple tools—notes, docs, tasks, databases, and collaboration—into one workspace, supported by a global multilingual community and ongoing content, courses, and events. The goal is to help teams stay organized, reduce costs by consolidating tools, and boost productivity across organizations of all sizes.

Company Size

5,001-10,000

Company Stage

Private

Total Funding

$605M

Headquarters

San Francisco, California

Founded

2016

Simplify Jobs

Simplify's Take

What believers are saying

  • GIC's $270M investment at $11B valuation funds Singapore office in mid-2025.
  • AI features drive over 50% of $600M ARR, growing 50% year-on-year.
  • Brazil launch with Fernando Chang and Arthur Rozenblit targets $12B IPO.

What critics are saying

  • OpenAI and Anthropic embed productivity in ChatGPT and Claude, bypassing Notion.
  • Microsoft Copilot integrates Claude 3.7 and GPT-4.1, stealing developer users.
  • Vendor lock-in to GPT-4.1 and Claude 3.7 triggers API restrictions within 12 months.

What makes Notion unique

  • Notion integrates GPT-4.1 and Claude 3.7 directly into workspaces for seamless AI use.
  • Drag-and-drop interface enables customizable databases, wikis, and project tools.
  • AI Q&A scans content instantly, centralizing knowledge without external searches.

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Benefits

Medical, dental & vision insurance

PTO

Mental health & wellbeing package

Parental leave

Fertility coverage

Retirement matching

Commuter benefits

Monthly stipend

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

3%
Business Wire
Mar 24th, 2026
Leapsome appoints two VPs and wins Notion as US expansion accelerates

Leapsome, a platform combining HRIS, performance and growth management, has appointed Jessica Zwaan as VP people strategy and operations and Rebecca Corliss as VP marketing as it expands its North American presence. The company has also won Notion as a customer. Founded in 2016, Leapsome has evolved from a talent management platform into an integrated system connecting core HR, performance, engagement and AI capabilities. The company now has more customers in the US than any other market. Zwaan joins from Talentful, where she served as chief operating officer, whilst Corliss brings experience from HubSpot, Owl Labs and VergeSense. Leapsome recently added a native ADP Workforce Now integration and expanded its Justworks partnership. The company is exhibiting at Transform 2026 this week in Las Vegas.

Microsoft
Feb 10th, 2026
GIC invests $270M in Notion through employee share sale at $11B valuation

Singapore's sovereign wealth fund GIC has invested $270 million in Notion through a private tender offer, valuing the AI workspace company at $11 billion. Sequoia Capital and Index Ventures joined GIC in purchasing shares from current and former Notion employees. The transaction provides employee liquidity whilst bringing new institutional capital. Notion removed the one-year vesting cliff on employee options to allow nearly all staff to participate. The investment follows Notion's expansion into Singapore with a regional office opened in mid-2025. Notion's AI-powered features now drive over 50% of annual recurring revenue, which recently surpassed $600 million. The platform serves over 100 million users worldwide across 21 languages. The $11 billion valuation represents a slight increase from Notion's 2022 tender offer at $10 billion.

Notion
Jan 26th, 2026
GIC, Sequoia, Index purchase Notion shares in private tender offer

Today, we’re pleased to share that we held a private tender offering over the last quarter. Returning investors Sequoia Capital and Index Ventures are doubling down on their commitment to Notion, while we’re thrilled to partner with new investor GIC, a global institutional investor.

Startups.com.br
Jan 19th, 2026
Notion launches Brazil operations eyeing $12B IPO with $600M revenue

Notion, the productivity tool popular among founders and developers, has officially launched operations in Brazil, targeting startups and large enterprises. The company hired Fernando Chang, a veteran from SAP, Oracle and Salesforce, to lead enterprise business, and Arthur Rozenblit, formerly of WeWork and Zendesk, to expand among startups and SMEs. The Brazilian expansion focuses on three pillars: partnerships, community engagement and digital presence. Notion has already partnered with Distrito to offer six months of Notion Business to startups. The move comes as Notion prepares for an IPO later this year, potentially raising $200 million at a $12 billion valuation. Founded in 2013, the company now has over 100 million users globally, with revenue reaching $600 million in 2025, up 50% year-on-year.

Pulse 2.0
May 31st, 2025
Flip Secures $28M for AI Growth

Flip secured a $28 million Series A extension led by existing investors, including LEA Partners and Notion Capital. The funding will enhance AI capabilities and support global expansion. Flip's AI solution automates shift planning and onboarding, boosting productivity and engagement. The company, founded by Benedikt Brand, has raised over $60 million since 2018 and serves 500+ companies. Simon Eck joins as SVP Global Sales to aid international growth.

INACTIVE