---
title: 'Security Engineer - Network Edge Security at Block'
canonical: 'https://feeny.ai/job/security-engineer-network-edge-security-block-bay-area-ca-united-states-of-2d9x3vd3drtk'
type: 'job'
last_seen: '2026-10-19'
---

# Security Engineer - Network Edge Security at Block

- **Company:** Block
- **Location:** Bay Area CA United States of, United States
- **Compensation:** $185k–$327k
- **Work type:** remote
- **Posted:** 2026-10-15
- **Last confirmed live:** 2026-10-19
- **Apply:** http://block.xyz/careers/jobs/5427855008?gh_jid=5427855008

## Job description

Block is one company built from many blocks, all united by the same purpose: economic empowerment. We build technology that increases access and independence for sellers, individuals, and artists around the world. Working at Block means working on and across our brands—Square, Cash App, Afterpay, TIDAL, Spiral, and Proto— in roles that connect, enable, and push all of them forward faster.

We’re remote-first by design and operate with intelligence at the center of everything we do. At Block, you'll be challenged by some of the brightest, most creative minds in the industry and have the tools and autonomy to do the most meaningful work of your career

## The Role

The Network Edge Security team builds the tools that provide important insights to our API Security posture and trustworthiness of traffic flowing into our systems. Our capabilities use machine learning, streaming analytics, and significant data analysis to provide insights into understanding our network edge risk exposure and the true sources of our request flows. The team’s primary focus is up-leveling our API security posture for downstream products and services. However, there is also a need at times to respond quickly to emerging threats to take action at the edge to provide immediate relief. The team is small, requiring nimbleness and flexibility to stay ahead of threat actors. You should have a strong passion for the problem space – needing to understand a significant range of knowledge around Content Distribution Networks (CDN), analytical tools, network protocols and behavior, as well as authentication and authorization systems. You will work closely with many teams across the organization both engineering and operational to gain the insights required to understand the problem space as well as monitor the effectiveness of our solutions.

You Will

- Respond and mitigate emerging threats and attacks at our network edge by leveraging WAF rules, bot vendors, and other CDN-native technologies
- Help build out infrastructure that gives us better inventory of our network edge security posture
- Build out and maintain a near-real time streaming analytics data pipeline and application
- Contribute to the evolution of our labeling and ML model development.
- Help manage and maintain our systems across build, deploy, and production monitoring,
- Be flexible with respect to computer languages as we use Java, Kotlin, Python, TypeScript, PySpark and others as needed or appropriate
- Evaluate and build integrations with vendor systems that may be used in addition to in-house solutions
- Develop and implement AI-driven capabilities to automatically classify and mitigate abusive traffic patterns
- Significant experience with bot/fraud identification and mitigation systems is a strong plus

You Have

- 5+ years of software or security engineering experience developing scalable production software incorporating testing, evaluation, and monitoring
- Bachelor's degree in Computer Science or equivalent practical experience
- Proficient in Java, Kotlin, Typescript, and Python
- Proficient in data analysis using SQL and Spark
- Experience implementing and maintaining applications in both a CDN (Cloudflare and Fastly) and Amazon Web Services (AWS) ecosystems
- Familiarity with Snowflake, Databricks, and Datadog are a strong plus

Technologies We Use and Teach

- Java/Kotlin, Javascript/Typescript, Python
- CDN (Cloudflare and Fastly)
- Snowflake, MySQL, DynamoDB, Databricks
- AWS
- Kafka
- Datadog, Terraform

We’re working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Block is an equal opportunity employer evaluating all employees and job applicants without regard to identity or any legally protected class. We will consider qualified applicants with arrest or conviction records for employment in accordance with state and local laws and “fair chance” ordinances.

We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter, who will treat these requests as confidentially as possible. Want to learn more about what we’re doing to build a workplace that is fair and square? Check out our [I+D page](https://block.xyz/news/inclusion).

While there is no specific deadline to apply for this role, U.S. roles are typically open for an average of 55 days before being filled by a successful candidate. Please refer to the date listed at the top of this job page for when this role was first posted.

Block takes a market-based approach to pay, and pay may vary depending on your location. U.S. locations are categorized into one of four zones based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.

To find a location’s zone designation, please refer to this [resource](https://block.xyz/documents/salaryzones.pdf). If a location of interest is not listed, please speak with a recruiter for additional information.

Zone A: $217,800—$326,800 USD

Zone B: $207,000—$310,400 USD

Zone C: $196,100—$294,100 USD

Zone D: $185,200—$277,800 USD

Application Guidelines

Candidates may submit up to 9 active applications within a 60-day period. Reapplications to the same role are accepted 90 days after a previous application has been reviewed.

Use of AI in Our Hiring Process

We may use automated AI tools to evaluate job applications for efficiency and consistency. These tools comply with local regulations, including bias audits, and we handle all personal data in accordance with state and local privacy laws.

Contact us [here](https://privacy.block.xyz/privacyportal/form) with hiring practice or data usage questions.

Every benefit we offer is designed with one goal: empowering you to do the best work of your career while building the life you want. Remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning are just some of our offering. [Check out our other benefits at Block.](https://block.xyz/employee-benefits)

Block, Inc. (NYSE: XYZ) builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the easy way to spend, send, and store money. Afterpay is transforming the way customers manage their spending over time. TIDAL is a music platform that empowers artists to thrive as entrepreneurs. Bitkey is a simple self-custody wallet built for bitcoin. Proto is a suite of bitcoin mining products and services. Together, we’re helping build a financial system that is open to everyone.

[Privacy Policy](https://block.xyz/en/legal/applicant-privacy-notice)

## About Block

## Company Overview
- **One-liner**: Block, Inc. builds technology for economic empowerment, providing financial services and tools for merchants and consumers through brands like Square, Cash App, Afterpay, Tidal, Bitkey, and Proto.
- **Entity Type**: Public (NYSE: SQ)
- **Headquarters**: Oakland, California, United States
- **Founded**: 2009
- **Founders**: Jack Dorsey, Jim McKelvey, Tristan O’Tierney

## Core Business
- **Primary industry**: Financial services, payments, and financial technology (fintech)
- **Target customers**: B2B (merchants, sellers of all sizes) and B2C (consumers, music listeners, bitcoin users)
- **Mission**: To build simple, powerful tools that make progress toward an economy that’s truly open to all — helping create a financial system that is open to everyone. [block.xyz](https://block.xyz/)

## Products & Services
- **Square**: Point-of-sale system and commerce platform that enables sellers to accept card payments, manage operations (bookings, e-commerce, inventory, payroll, banking), and access business loans. [linkedin.com/company/joinblock](https://www.linkedin.com/company/joinblock)
- **Cash App**: Digital wallet for consumers to send, receive, save, or borrow money; access a debit card; invest in stocks and bitcoin; and file taxes. [linkedin.com/company/joinblock](https://www.linkedin.com/company/joinblock)
- **Afterpay**: Buy now, pay later service that lets customers manage spending over time. [block.xyz](https://block.xyz/)
- **Tidal**: Music streaming platform that empowers artists to thrive as entrepreneurs. [block.xyz](https://block.xyz/)
- **Bitkey**: Simple self-custody bitcoin wallet. [block.xyz](https://block.xyz/)
- **Proto**: Suite of bitcoin mining products and services. [block.xyz](https://block.xyz/)

## Market Standing
- **Valuation/Market Cap**: $96.3 billion (as of 2025/2026, per LinkedIn). [linkedin.com/company/joinblock](https://www.linkedin.com/company/joinblock)
- **Key Metric (Public)**: Annual revenue of $24.2 billion (latest fiscal year). [linkedin.com/company/joinblock](https://www.linkedin.com/company/joinblock)
- **Notable Investors/Partners**: Jack Dorsey (founder, chair, CEO) owns ~10% of the company; other major institutional investors. Key partners include Amazon, Meta, Google (as talent sources). [linkedin.com/company/joinblock](https://www.linkedin.com/company/joinblock)
- **Growth Signals**: Serves 57 million users and 4 million sellers, processing $241 billion in payments annually. Operates in 34 countries. Headcount of 3,223 (though down 25.4% YoY). Active job postings increased 614% quarter-over-quarter (50 open roles). [linkedin.com/company/joinblock](https://www.linkedin.com/company/joinblock)

## Competitive Advantages
- **Ecosystem moat**: Multiple interconnected brands (Square, Cash App, Afterpay, Tidal, Bitkey, Proto) that cross-sell and deepen user engagement across payments, banking, music, and bitcoin.
- **Market leadership**: Dominant U.S. point-of-sale market share and strong consumer adoption of Cash App.
- **Bitcoin & crypto focus**: Early and deep integration of bitcoin (Bitkey wallet, Proto mining, Cash App crypto trading) differentiates Block from traditional fintechs.
- **Distributed work culture**: Allows global talent acquisition and flexible work arrangements that reduce real estate costs and increase employee satisfaction. [block.xyz/employee-benefits](https://block.xyz/employee-benefits)

## Strategic Focus
- Expanding the bitcoin ecosystem through self-custody (Bitkey) and mining infrastructure (Proto).
- Deepening financial inclusion with Cash App (banking, lending, investing) and Afterpay (credit alternatives).
- Growing the Square merchant platform internationally and into larger enterprise accounts.
- Leveraging AI in hiring and operations to improve efficiency and reduce bias. [block.xyz/careers/our-ai-hiring-principles](https://block.xyz/careers/our-ai-hiring-principles)

## Why Work Here
- **Culture**: Block emphasizes a “distributed work” model — employees choose where they work (home, office, hybrid) unless a role requires specific geography. Up to 45 days of international work flexibility across 150+ countries. [block.xyz/employee-benefits](https://block.xyz/employee-benefits)
- **Benefits**: Competitive pay, equity (Employee Stock Purchase Plan at 15% discount), matching 401(k), flexible PTO, comprehensive health/wellness (medical, dental, vision, mental health support), family leave, and family planning support. [block.xyz/employee-benefits](https://block.xyz/employee-benefits)
- **Engineering culture**: AI is used to augment hiring (not replace judgment). Strong emphasis on open source, bitcoin, and building for economic empowerment. Teams work across Square, Cash App, Afterpay, Tidal, Bitkey, and Proto — offering broad career mobility. [block.xyz/careers/our-ai-hiring-principles](https://block.xyz/careers/our-ai-hiring-principles)
- **Remote/Hybrid**: Fully distributed; offices available in Oakland, San Francisco, New York, Melbourne, London, Toronto, and more. [linkedin.com/company/joinblock](https://www.linkedin.com/company/joinblock)
- **Perks**: Employee stock ownership, wellness stipends, career growth programs across the ecosystem.

## Sources
1. [block.xyz](https://block.xyz/)
2. [block.xyz - Careers](https://block.xyz/careers/jobs)
3. [block.xyz - Employee Benefits](https://block.xyz/employee-benefits)
4. [block.xyz - AI Hiring Principles](https://block.xyz/careers/our-ai-hiring-principles)
5. [LinkedIn - Block](https://www.linkedin.com/company/joinblock)

## Other roles at Block

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- [Implementation Specialist - Bilingual (Spanish) PST Timezone](https://feeny.ai/job/implementation-specialist-bilingual-spanish-pst-timezone-block-bay-area-ca-nmhpkxhyj8e0) — Bay Area CA United States of, United States
- [Sales Enablement Program Manager](https://feeny.ai/job/sales-enablement-program-manager-block-toronto-tpbq7v67xcr5) — Toronto, Canada
- [Mid-Market Account Excutive](https://feeny.ai/job/mid-market-account-excutive-block-sydney-7n273xhdjjvx) — Sydney, Australia
- [SMB Business Development Rep Associate - AfterPay](https://feeny.ai/job/smb-business-development-rep-associate-afterpay-block-bay-area-ca-united-states-81rkp5s9xss3) — Bay Area CA United States of, United States
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- [Head of Social - Square](https://feeny.ai/job/head-of-social-square-block-bay-area-ca-united-states-of-hfnyzez2kr7s) — Bay Area CA United States of, United States
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