Senior Software Engineer, Accounting & Revenue Team

Company Description
Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square. After enabling anyone to take payments and never miss a sale, we saw sellers stymied by disparate, outmoded products and tools that wouldn't work together.
So we expanded into software and started building integrated, omnichannel solutions - to help sellers sell online, manage inventory, offer buy now, pay later functionality through Afterpay, book appointments, engage loyal buyers, and hire and pay staff. Across it all, we've embedded financial services tools at the point of sale, so merchants can access a business loan and manage their cash flow in one place. Afterpay furthers our goal to provide omnichannel tools that unlock meaningful value and growth, enabling sellers to capture the next generation shopper, increase order sizes, and compete at a larger scale.
Today, we are a partner to sellers of all sizes - large, enterprise-scale businesses with complex operations, sellers just starting, as well as merchants who began selling with Square and have grown larger over time. As our sellers grow, so do our solutions. There is a massive opportunity in front of us. We're building a significant, meaningful, and lasting business, and we are helping sellers worldwide do the same.
Job Description
Square's rapidly growing financing platform, Square Lending, has revolutionized the way businesses obtain the funding needed to achieve their goals.
Unlike traditional business financing products, Square Lending offers are extended to pre-qualified sellers based on their business performance, funds are deposited as soon as the next business day, and are customizable based on the Seller's needs. Since the product launched in 2014, Square Lending has extended more than $16 billion to over two million sellers worldwide.
As an Engineer for the Accounting & Revenue team on the Lending Platform, you will help build out a platform to handle the accounting, revenue recognition, and related functions for our credit products. Our platform is responsible for everything from accurately recording and reporting financial operations and transactions to data-crunching jobs that process millions of dollars in payment events every day. You will operate on the critical path of all our lending products to empower internal engineering teams to more quickly deliver new features and help accounting/finance teams understand the impact of these products on the business.

• Help deliver major initiatives to expand access to credit for our sellers.
• Help us build the future of our accounting and revenue platform.
• Provide technical leadership and direction to the team, ensuring that engineering best practices are followed.
• Lead and participate in critical technical, design, and product discussions with leaders across our various product, data science, operations, engineering, accounting, treasury, and reconciliation teams.
• Oversee the success of your team's projects and deliver quantifiable results.
• Learn and understand multiple complex financial instruments to model commonalities between them,
• Participate in ongoing training to maintain current knowledge of BSA/AML and perform BSA/AML duties as required.

Qualifications
You have:

• 5+ years of hands-on software engineering experience
• Strong interest or relevant experience in lending, finance, accounting, or similar domains.
• Proficiency in Ruby, Kotlin and Java strongly preferred.
• Interest in working on back-end systems, from APIs and business logic to optimizing databases and streams.
• Interest in modeling complex domains and building resilient systems to support high-throughput real-world applications.
• Excellent software development skills and architectural design skills.
• Experience collaborating with product managers, data analysts, accountants, finance teams, and other cross-functional leaders.
• Proven experience in mentoring and guiding junior engineers in technical and professional development.

Tools we use and teach:

• AWS
• Ruby on Rails
• Kotlin
• Terraform
• Kafka
• Aurora / MySQL

Qualifications
You have:

• 5+ years of hands-on software engineering experience
• Strong interest or relevant experience in lending, finance, accounting, or similar domains.
• Proficiency in Ruby, Kotlin and Java strongly preferred.
• Interest in working on back-end systems, from APIs and business logic to optimizing databases and streams.
• Interest in modeling complex domains and building resilient systems to support high-throughput real-world applications.
• Excellent software development skills and architectural design skills.
• Experience collaborating with product managers, data analysts, accountants, finance teams, and other cross-functional leaders.
• Proven experience in mentoring and guiding junior engineers in technical and professional development.

Tools we use and teach:

• AWS
• Ruby on Rails
• Kotlin
• Terraform
• Kafka
• Aurora / MySQL