Square logo

Senior Software Engineer, Fraud Risk

Square

Job Description

Risk Engineering works to protect Square and our customers' $25B+ in payments from fraud and payment disputes. We build systems to detect and respond to potential fraud threats, provide outstanding tools to agents for investigating fraud events, and give our customers seamless web and mobile experiences to manage and fight payment disputes. Our mission is to protect Square, protect our customers, and make a complicated and sometimes painful process understandable to all.

Fraud Risk is looking for a Senior Software Engineer to help us build solutions that further these goals. You will collaborate with teams across the company on new product and market launches to fight fraud and make real-time data available for scalable ML-based fraud decisioning. Help us solve these challenging problems with data science, machine learning, and efficient tooling!

Responsibilities

  • Work with teams and roles across Square to develop new solutions and improve existing processes addressing fraud.
  • Develop essential tooling to act quickly on potential fraud.
  • Design fault-tolerant systems so the team can be brave, move fast, and break things, without ever showing a negative impact to customers.
  • Advocate and model engineering best practices.
  • Mentor other engineers.

Qualifications

  • 5+ years of software engineering experience.
  • Interest in working full-stack across multiple technical domains, including backend microservices and internal tooling.
  • Experience building products end to end - technical design, implementation, testing, launch, and maintenance.
  • Metrics-oriented mindset: you want your work to be measurable and impactful.
  • Comfortable working with a globally distributed team of data scientists, engineers, and risk experts.

Technologies We Use and Teach

  • Java, Guice, Google Cloud Platform, Amazon Web Services
  • Go, Ruby on Rails, Ember, React, GraphQL
  • Protocol Buffers
  • MySQL, Hibernate, jOOQ

Additional Information

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 a proud equal opportunity employer. We work hard to evaluate all employees and job applicants consistently, based solely on the core competencies required of the role at hand, and without regard to any legally protected class.

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.

Perks

We want you to be well and thrive. Our global benefits package includes:

  • Healthcare coverage
  • Retirement Plans
  • Employee Stock Purchase Program
  • Wellness perks
  • Paid parental leave
  • Paid time off
  • Learning and Development resources

Benefits
Extracted with AI

  • Healthcare coverage
  • Retirement Plans
  • Employee Stock Purchase Program
  • Wellness perks
  • Paid parental leave
  • Paid time off
  • Learning and Development resources

Similar jobs

Last update: 23 minutes ago

Square logo
Square

Senior Software Engineer, Fraud Risk

Join Square as a Senior Software Engineer in Fraud Risk, focusing on backend development, fraud detection, and machine learning.

Square logo
Square

Senior Software Engineer, Fraud Risk

Join Square as a Senior Software Engineer in Fraud Risk, focusing on backend development, fraud detection, and machine learning.

Square logo
Square

Senior Software Engineer, Fraud Risk

Join Square as a Senior Software Engineer in Fraud Risk, focusing on backend development, fraud detection, and machine learning.

Square logo
Square

Senior Software Engineer, Payment Pricing & Cost Platform

Join Square as a Senior Software Engineer to optimize payment systems focusing on pricing and cost efficiency.

Square logo
Square

Staff Software Engineer (Backend)

Senior Backend Software Engineer role at Square, Dublin. Focus on system security, scalability, and mentorship.

Sofico logo
Sofico

Senior Software Engineer - Java, Microservices

Join Sofico as a Senior Software Engineer focusing on Java and Microservices in Bavaria, Germany. Work on ERP solutions for automotive finance.

Square logo
Square

Senior Software Engineer, Orders Core

Join Square as a Senior Software Engineer to build scalable, resilient systems for the Orders Core team. Remote work available.

Square logo
Square

Senior Software Engineer, Payment Pricing & Cost Platform

Join Square as a Senior Software Engineer to enhance payment pricing and cost platforms using Java, Python, and cloud technologies.

Square logo
Square

Senior Software Engineer, Reporting Platform

Join Square as a Senior Software Engineer to lead development on the Reporting Platform, focusing on Java, Kotlin, and AWS.

Square logo
Square

Senior Software Engineer - Payment Pricing & Cost Platform

Senior Software Engineer for Payment Pricing & Cost Platform focusing on Java, Python, Ruby, and financial services.

Sofico logo
Sofico

Senior Software Engineer - Java, Microservices

Join Sofico as a Senior Software Engineer focusing on Java and Microservices in Ghent. Work on ERP solutions for automotive finance and leasing.

Square logo
Square

Staff Software Engineer, Money Movement

Lead software engineer role focusing on backend systems for financial transactions, using Java, Kotlin, and cloud technologies.

Moss logo
Moss

Senior Backend Engineer (Java, Spring)

Join Moss as a Senior Backend Engineer in Berlin, focusing on Java, Spring, and microservices.

Square logo
Square

Senior Software Engineer, Payments API

Senior Software Engineer for Payments API at Square, focusing on Java, Microservices, and software development in Atlanta.

Stripe logo
Stripe

Staff Backend Engineer, Fraud Decisions

Join Stripe as a Staff Backend Engineer focusing on fraud decisions, working remotely with Java and Ruby.

Square logo
Square

Senior Backend Software Engineer, Developer Platform Growth

Join Square as a Senior Backend Software Engineer to drive growth in our Developer Platform, focusing on APIs and microservices.

Square logo
Square

Software Engineer - Square

Join Square as a Software Engineer in San Francisco, developing tools to help merchants grow their businesses.

Square logo
Square

Senior Developer Relations Engineer, Platform

Senior Developer Relations Engineer at Square, focusing on open source software and community engagement.

Square logo
Square

Senior Developer Relations Engineer, Platform

Senior Developer Relations Engineer at Square, focusing on community building and technical content creation.

Square logo
Square

Senior Software Engineer (Frontend/Fullstack)

Join Square as a Senior Software Engineer (Frontend/Fullstack) to build world-class e-commerce solutions using JavaScript, PHP, and VueJS.

Instapro Group logo
Instapro Group

Senior Backend Engineer - Payments

Join Instapro Group as a Senior Backend Engineer in Berlin, focusing on PHP and payment systems in a hybrid work environment.

Square logo
Square

Senior Software Engineer - Square Marketing

Join Square as a Senior Software Engineer to enhance marketing tools using AWS, Golang, and AI. Remote position with competitive benefits.

Square logo
Square

Senior Software Engineer (Backend) - Invoices

Join Square as a Senior Software Engineer (Backend) to design and build world-class product experiences for Square Invoices.

Square logo
Square

Tech Lead Software Engineer (Backend) - Identity Platform

Lead backend development for Square's Identity Platform, focusing on scalable, resilient systems. Requires 12+ years in Java and OAuth expertise.