Senior Software Engineer – Merchant Profiling and Service

Website Afterpay

It’s all in the app.

About the job
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

As a Full-stack Senior Software Engineer in the Seller Expereince Domain you’ll be responsible for ensuring Merchants also get the Afterpay experienceᵀᴹ. The team’s focus is onboarding new merchants with a suite of ecommerce integrations, providing tools post onboarding and finally statements for transaction visibility. This is a perfect opportunity for a Software Engineer that enjoys working in a global team and with product, creating new experiences for major retailers and businesses alike!

What You’ll Be Doing

Scope, build and maintain/enhance systems & services using React, Kotlin, Java and related open source technologies
Lead and participate in critical technical design and product discussions
Own features and functions throughout their lifecycle from inception, rollout, launch, scale and iteration
Practice eXtreme Programming (XP) engineering techniques of Software Development
Fostering the use of agile practices for Software Delivery
Work in cross-functional Product teams responsible for the discovery, delivery and validation of product features via microservices, APIs, web-apps
Work with the software engineering team following our software development principles, guided by the Staff Engineers and Engineering Managers
Peer review design decisions, code, automated tests and documentation
Participate in the ongoing design and architecture of our evolving core platforms and services
Collaborate with product managers, experience designers & business stakeholders to build efficient and reliable feature implementations that will delight our customers
Ensure that story estimates and code reviews are completed in a timely manner



A demonstrable and strong track record of building highly scalable, performant and resilient systems/software
Proven expertise in preferably Kotlin, Java and JavaScript/Typescript (React/Redux)
Expertise in mentoring & coaching junior developers within teams
Strong understanding of Full stack engineering in a complex development environment
Solid understanding of how to build testable, decoupled, maintainable code and other engineering best practices such as XP techniques (TDD, pair-programming, CI, etc)
Experience working within an agile, cloud-based environment, we use AWS
Some working knowledge of backend technologies including but not limited to: Dropwizard, Spring/Guice, ORM/Hibernate, SQL and relational databases (Postgres)
Some working knowledge of frontend technologies including but not limited to: Javascript/Typescript, Angular, ReactJS, Webhooks, SASS, Json
Ability to work with design team towards achieving goals towards UX/UI requirements
Understanding of integration technologies: microservices, RESTful APIs, gRPC, JSON/XML Structured Logging
Experience with version control, preferably Git
The ability to build scalable and maintainable software-as-a-service applications using modern JVM languages
Willingness to learn and apply new methodologies and techniques as required
Bachelors’ degree in Computer Science or relevant field
Great communication skills, able to discuss engineering issues and trade-offs without hesitation


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. Want to learn more about what we’re doing to build a workplace that is fair and square? Check out our I+D page.


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


Block, Inc. (NYSE: SQ) is a global technology company with a focus on financial services. Made up of Square, Cash App, Spiral, TIDAL, and TBD, we build tools to help more people access the economy. Square helps sellers run and grow their businesses with its integrated ecosystem of commerce solutions, business software, and banking services. With Cash App, anyone can easily send, spend, or invest their money in stocks or Bitcoin. Spiral (formerly Square Crypto) builds and funds free, open-source Bitcoin projects. Artists use TIDAL to help them succeed as entrepreneurs and connect more deeply with fans. TBD is building an open developer platform to make it easier to access Bitcoin and other blockchain technologies without having to go through an institution.

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