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

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.

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.

Nubank logo
Nubank

Senior Software Engineer - Data Platform

Join Nubank as a Senior Software Engineer to build and maintain core data infrastructure, ensuring reliable and scalable data flow.

Sysdig logo
Sysdig

Senior Software Engineer - Backend Development

Join Sysdig as a Senior Software Engineer to develop scalable backend services using Go, RESTful APIs, and microservices in a hybrid work environment.

TrueLayer logo
TrueLayer

Senior Software Engineer - C#/.NET

Join TrueLayer as a Senior Software Engineer in Milan, working with C#, .NET, AWS, and Kubernetes to build scalable systems.

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.

Triad Group Plc logo
Triad Group Plc

Senior Ruby Developer

Join Triad Group Plc as a Senior Ruby Developer, working remotely with Ruby on Rails, JavaScript, and more. Great benefits and career growth.

Aiven logo
Aiven

Staff Software Engineer

Join Aiven as a Staff Software Engineer to develop cloud operations platforms using open-source technologies. Hybrid work in Berlin.

MoonPay logo
MoonPay

Senior Full Stack Engineer - Consumer

Join MoonPay as a Senior Full Stack Engineer in Lisbon, focusing on consumer products using React, TypeScript, and GCP.

SumUp logo
SumUp

Senior Fullstack Engineer with TypeScript and Microservices

Join SumUp as a Senior Fullstack Engineer in Berlin. Work with TypeScript, Microservices, and REST APIs to enhance global fintech solutions.

N26 logo
N26

Backend Engineer - Financial Empowerment

Join N26 as a Backend Engineer to empower financial freedom using Java, Kotlin, and microservices in a hybrid work environment.

Mollie logo
Mollie

Associate Software Engineer - Payments Domain

Join as an Associate Software Engineer in Amsterdam to develop secure payment solutions using PHP in a collaborative environment.

HeyJobs logo
HeyJobs

Senior Software Engineer - AWS, Python, Ruby on Rails

Join HeyJobs as a Senior Software Engineer to design scalable systems using AWS, Python, and Ruby on Rails in a dynamic team.

Together AI logo
Together AI

Senior Backend Engineer - Java, Rust, Go

Join Together AI as a Senior Backend Engineer in Amsterdam. Work with Java, Rust, and Go to build scalable backend systems.

Devire logo
Devire

Senior Backend Engineer (JavaScript & Node.js)

Join Devire as a Senior Backend Engineer specializing in JavaScript & Node.js, working on innovative fintech solutions in a hybrid role in Warsaw.

Sysdig logo
Sysdig

Senior Software Engineer - .NET and Go

Join Sysdig as a Senior Software Engineer in Berlin, focusing on .NET and Go for cloud security solutions.

Aiven logo
Aiven

Senior Software Engineer - Python, Apache Kafka

Join Aiven as a Senior Software Engineer in Berlin, focusing on Python and Apache Kafka in a hybrid work environment.

Semrush logo
Semrush

Senior NodeJS Developer

Join Semrush as a Senior NodeJS Developer to build and enhance digital marketing tools. Work remotely with flexible hours.

Pass App logo
Pass App

Senior Software Engineer (Backend)

Join Pass App as a Senior Software Engineer (Backend) to build scalable web3 solutions using microservices, TypeScript, and Node.js.

NCR Voyix logo
NCR Voyix

Backend Software Engineer

Join NCR Voyix as a Backend Software Engineer in Amsterdam. Design, build, and maintain scalable backend systems using Java, Node.js, and cloud platforms.

Personio logo
Personio

Staff Software Engineer, Data Platform

Join Personio as a Staff Software Engineer in Berlin to build scalable data platforms using Kafka, Kubernetes, and AWS. Drive innovation and excellence.

Square logo
Square

iOS Engineer, Mobile Payment Experience

Join Square as an iOS Engineer to develop SDKs for mobile payment solutions, focusing on Swift and Objective-C.

Elastic logo
Elastic

Software Engineer II - Developer Experience

Join Elastic as a Software Engineer II in Developer Experience, focusing on test frameworks for Kibana. Remote work, competitive benefits.

Square logo
Square

iOS Engineer, Mobile Payment Experience

Join Square as an iOS Engineer to build SDKs for mobile payment experiences using Swift and Objective-C.