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3,145 Crypto & Web3 jobs

Open tech roles at companies in crypto, blockchain and web3.

3.1K jobs
Block Backed by Sequoia
22 views 7 days ago

Senior Security Engineer, Detection & Response

Open 33d North AmericaSenior 10 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Bay Area, CA

Senior security engineer on Block's DART/CSIRT team who leads complex security incident investigations end-to-end — scoping, containment, forensics, and post-incident reviews — across endpoint, identity, cloud, SaaS, network, and application systems. Builds response tooling and automation with Python and SQL, mentors responders, and joins an on-call rotation.

AI Automation Cloud Dart Python +3 skills
218K – 327K $
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Block Backed by Sequoia
42 views 7 days ago

Software Engineer, Program Engineering

Open 35d North America 10 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Bay Area, CA

Full-stack engineer on Block's Compliance Program Engineering team, building and operating the transaction store/search and entity-labeling platforms that power Block's compliance work. Day-to-day spans backend services, self-serve tools, and data pipelines using Ruby on Rails, Java/Kotlin, React/TypeScript, AWS, Kafka, and AI tooling.

Agentic AI AI Aurora Automation AWS +20 skills
218K – 327K $
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Block Backed by Sequoia
55 views 7 days ago

Staff iOS Software Engineer, Product Platform

Open 51d North AmericaFull-timeStaff 10 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Bay Area, CA

Hands-on staff-level iOS platform engineer who builds and evolves the shared foundations (architecture, navigation, frameworks, developer tooling) behind Cash App and Square, leads multi-quarter initiatives across teams, and champions AI-assisted development. Core stack: Swift, Objective-C, SwiftUI/UIKit, Bazel, Protocol Buffers.

AI Android Bazel CI/CD Developer Experience +8 skills
264K – 395K $
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DRW
43 views 7 days ago

Senior Software Engineer, Unified Platform - Digital Assets

Open 97d UKSenior 6 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United Kingdom
London

Senior Software Engineer at DRW builds and maintains systems for moving and safeguarding cryptoassets, including treasury automation, wallet inventory, and custody integrations, using Python, FastAPI, Kubernetes, and CI/CD pipelines.

Airflow API Automation CI/CD Cloud +9 skills
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Block Backed by Sequoia
21 views 7 days ago

Security Engineer, Business Continuity & Risk

Open 34d North America 10 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Bay Area, CA

Security Engineer at Block's bank (Square Financial Services) builds the third-party risk and business continuity program as an engineering problem: data pipelines joining risk/control/asset signals, policy-as-code controls, and agentic LLM workflows for evidence analysis and continuous monitoring. Stack includes Python/Java/Kotlin/Go, AWS/GCP, and Snowflake.

Agentic AI AI API Authentication AWS +20 skills
180K – 270K $
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Block Backed by Sequoia
26 views 7 days ago

Staff Software Engineer, Financial Platform - Issuing

Open 55d APACStaff 10 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
Australia
Melbourne

Staff software engineer on Block's card-issuing platform team in Melbourne, serving as the deep technical expert on card networks (ideally Visa) — handling specs, ISO 8583 message flows, certification and mandates — while staying hands-on writing production code and tooling for the systems authorizing Cash App Card and Square Card transactions in milliseconds.

AI Authentication Express.js
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Block Backed by Sequoia
44 views 7 days ago

Staff Software Engineer, Financial Platform - Issuing

Open 55d North AmericaStaff 10 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Seattle, WA

Staff software engineer on Block's Financial Platform Issuing team, building and operating the card issuing platform behind Cash App Card and Square Card. The role is hands-on: deep card-network work (Visa/Mastercard/Amex specs, ISO 8583, certification, mandates), production code and tooling, protocol-level debugging, and on-call for critical payments systems.

AI Authentication Express.js
264K – 395K $
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DRW Montreal
25 views 7 days ago

Développeur de Logiciels

Open 112d North America 5 questions
Canada
Montreal

Software developer at DRW's Montreal trading office building and maintaining market-data systems — collection, transformation, and delivery of real-time market data feeding trading systems. Core stack is Python or C++, working closely with trading and operations teams.

C++ Docker ELK GraphQL Kafka +5 skills
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DRW
23 views 7 days ago

Desktop Systems Engineer

Open 119d North America 5 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
New York City

Desktop Systems Engineer on DRW's front-line Desktop Systems Engineering team at a proprietary trading firm: supporting and deploying Windows, macOS, and Linux endpoints in NYC, handling imaging (MEMCM/SCCM), BitLocker encryption, AirWatch MDM, user provisioning, and AV/Zoom conference room tech, with occasional Greenwich, CT coverage.

Active Directory Analytics Cloud Intune Linux +7 skills
130K – 160K $
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DRW
12 views 7 days ago

Crypto Associate Relationship Manager - Electronic Trading

Open 127d North America 5 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
New York, Greenwich

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly…

API Git Java Linux Python +1 skills
100K – 150K $
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DRW
27 views 7 days ago

Blockchain Strategy Analyst

Open 139d North America 5 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Chicago

Cumberland - a DRW Company , is the cryptoasset arm of DRW, established in 2014 after pursuing an early interest in cryptoassets and their underlying technologies. Today, Cumberland is a global leader in cryptoassets,…

Blockchain DeFi Financial Modeling Python Web3
125K – 200K $
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DRW
40 views 7 days ago

Quantitative Developer

Open 111d North America 5 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
New York

A Quantitative Developer/Research Engineer at DRW will work at the intersection of quantitative research and software engineering, turning research ideas into reliable trading systems. The role involves designing and building core research and trading platforms, data pipelines, backtesting frameworks, and implementing machine learning models using Python, C++, and high-performance software systems

AI API C++ Data Pipelines Deep Learning +9 skills
175K – 250K $
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Block Backed by Sequoia
17 views 7 days ago

Creative Director, Block

Open 62d North America 10 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
New York, NY

Creative Director (individual contributor) on Block's in-house creative team, originating brand platforms, repositionings, and campaign concepts for Cash App and carrying them across film, social, experiential, copy, and online/offline activations while directing designers, writers, and production partners.

252K – 377K $
DRW
31 views 7 days ago

Senior Software Engineer - DeFi

Open 144d North AmericaContractSenior 5 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Chicago

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly…

Ansible API Argo CD Blockchain Clojure +21 skills
130K – 225K $
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DRW
17 views 7 days ago

Crypto Business Development Manager

Open 144d UK 6 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United Kingdom
London

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly…

Blockchain Business Development DeFi Smart Contracts
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DRW
34 views 7 days ago

Trading Systems Engineer, Cumberland Mining

Open 144d UK 4 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United Kingdom
London

Trading systems engineer on DRW's Cumberland crypto trading team in London, providing 24x7 production support for the trading ecosystem: deploying and monitoring software, troubleshooting trading incidents, and liaising with exchanges, traders, and developers. Stack includes Python, Bash, SQL, Linux, and Git.

Automation Bash Business Development Git GitHub +3 skills
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Block Backed by Sequoia
40 views 7 days ago

Staff Software Engineer, Payments Acquiring

Open 27d North AmericaStaff 10 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Seattle, WA

Staff engineer on Block's Financial Platform Acquiring team, building and operating the card-acquiring systems behind Square, Cash App, and Afterpay: tokenizing card data, routing and authorizing payments over direct network/acquirer connections, and handling capture, clearing, and settlement. Requires deep ISO 8583/card-network expertise, hands-on coding, project leadership, and on-call participa

Agentic AI AI API Express.js Test Automation
264K – 395K $
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Block Backed by Sequoia
25 views 7 days ago

Principal Security Engineer

Open 127d North AmericaPrincipal 12 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Bay Area, CA

Principal Security Engineer at Block designs and implements secure software architectures for fintech products like Square and Cash App, driving security best practices across engineering teams.

AI Automation Cryptocurrency SDLC Threat Modeling
319K – 479K $
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Tower Research Capital
54 views 7 days ago

Software Engineer, C++

Open 140d HybridUKMiddle 6 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United Kingdom
London

Builds and optimizes a high-frequency trading platform for cryptocurrency markets at a quantitative trading firm: ingesting quotes/trades from global exchanges, disseminating orders, and minimizing latency. Core work is low-latency C++ on Linux with network/systems programming, plus performance tooling, market-data systems, and optional Python/shell, cloud, and crypto exchange API exposure.

API Bash Cloud C++ Cryptocurrency +9 skills
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DRW
79 views 7 days ago

Software Engineer, Research – Cumberland Systematic

Open 144d North America 2 questions Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
New York City

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly…

Blockchain C++ Data Engineering Machine Learning Python
175K – 225K $
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