Software Engineer, Data Mining

About NationGraph NationGraph is building the data and intelligence layer for the public sector.

More than 110,000 state and local government agencies across the U.S. independently publish information about:

How they operate

What they buy

Who they work with

What problems they are trying to solve

That information is fragmented across millions of websites, documents, databases, procurement systems, meeting records, and public records.

NationGraph turns that information into structured, connected, actionable intelligence for businesses selling to government.

Founded in 2024, NationGraph is dedicated to

making uncommon knowledge common , because public data should actually be public.

The Role We’re looking for a

Software Engineer, Data Mining

to own one of the most important technical problems at NationGraph:

building the systems that acquire public-sector information from across the internet at massive scale.

Our goal is to operate

hundreds of thousands, and eventually millions, of scrapers

covering every level of government across the U.S. and Canada, and eventually worldwide.

This is not a role focused on manually building individual scrapers. You’ll own the infrastructure, abstractions, and automation that allow us to create, deploy, monitor, and maintain an enormous fleet of scrapers reliably.

You’ll work across:

Web crawling and scraping

Browser automation

Distributed systems

Data extraction

Infrastructure and orchestration

LLMs and agents

Monitoring and observability

What You’ll Do

Own our scraping infrastructure end-to-end

Build systems for creating, deploying, scheduling, monitoring, and maintaining hundreds of thousands of scrapers.

Design abstractions that allow us to scale toward millions of sources without scaling engineering effort linearly.

Build for the messy internet

Work across government websites, APIs, procurement systems, PDFs, spreadsheets, meeting records, and legacy systems.

Handle changing websites, undocumented APIs, rate limits, broken sources, and countless edge cases.





Make scraping a distributed systems problem

Build for orchestration, concurrency, retries, backfills, change detection, observability, cost management, and failure recovery.

Ensure we know when sources break, data disappears, or extraction silently becomes incorrect.

Use AI to rethink scraping

Work with our ML Research team to use LLMs and agents to:

Discover new sources

Understand unfamiliar websites

Generate scraping logic

Detect source changes

Diagnose and repair failures

Validate extracted data

Build systems that get better with scale

Identify common platforms and patterns that can unlock thousands of government agencies at once.

Make new sources increasingly cheap and automated to onboard.

Expand our coverage globally

Help comprehensively map public-sector information across the U.S. and Canada.

Build the foundation to eventually acquire public-sector information worldwide.

You Might Be a Good Fit If

You’re an unusually strong engineer who enjoys figuring out how things work.

You’ve built production web crawlers, scraping systems, browser automation, or large-scale external data pipelines.

You’re strong in Python, Go, TypeScript, or another backend/systems language.

You understand the realities of scraping contemporary websites, including:

JavaScript rendering

Sessions and cookies

Rate limits

Proxies

Authentication

Changing schemas and websites

You understand distributed systems, including:

Orchestration

Queues and concurrency

Idempotency

Retries

Backfills

Observability

Failure recovery

You care deeply about data quality, correctness, and reliability.





You’re excited about using LLMs and agents to automate traditionally manual scraping work.

You naturally think about leverage:

not how to scrape one website, but how to build a system capable of scraping the next 10,000.

You thrive in ambiguity and would rather build the system than be handed one.

We’re particularly interested in backgrounds spanning:

Alternative data

Quantitative research infrastructure

Search and crawling

AI data infrastructure

Knowledge graphs

Large-scale document processing

Data aggregation

None of these are requirements.

Our Engineering Stack

Backend:

Python, Go, PostgreSQL

Infrastructure:

Redis, Docker, Kubernetes

Frontend:

React, TypeScript

AI / ML:

LLMs, agents

Our stack will evolve, you’ll help decide how.

Why NationGraph

Own a foundational problem

A large part of this architecture still needs to be invented.

You’ll have significant ownership over how NationGraph discovers, acquires, represents, and serves public-sector information.

Work on a genuinely hard data problem

There is no single API for American government.

There are tens of thousands of institutions, millions of sources, inconsistent schemas, and enormous amounts of information buried in systems never designed for machines.

Build a real data moat

We believe a major long-term advantage in applied AI will come from proprietary context and data.

Government contains enormous amounts of valuable information that is technically public but practically inaccessible.

Your job is to change that.

Work with exceptional people

You’ll work closely with the CEO, CTO, and a small engineering and research team.

The team has backgrounds spanning high-scale infrastructure, quantitative finance, AI, and startups.

Have real ownership

We move quickly.

We operate with very little bureaucracy.

Engineers have significant ownership over technical decisions and product outcomes.

If the idea of building the data infrastructure to map and understand how government works sounds exciting, we’d love to talk.

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📌 Software Engineer, Data Mining (Winnipeg)
🏢 Mosaic.tech
📍 Winnipeg