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 purpose is economic empowerment; since the company's beginning, we have been helping numerous people start and manage their own businesses. During the pandemic, many small businesses struggled, as they scramble to adapt to going online to reach their customers.
The Orders team has a mission to enable sellers to reach their customers anywhere, and provide a seamless experience to the customers (e.g. buy online, pickup in store) that today might only be available from much larger merchants. We have already started rolling out to a small percentage of sellers, with a goal of expanding this to all sellers. Furthermore, we strive to build an Orders platform that empowers both teams at Square and an ecosystem of third-party developers to support our sellers in this bright future ahead.
This is a massive undertaking with huge challenges. We have a wide range of sellers with many different needs, and to meet those needs, we work with many stakeholder teams at Square in navigating dependencies and intertwined technical / product ambiguities. Orders Core team owns the Order APIs and the legacy Bills system which are at the center of all commerce at Square. We own two very critical services. We are looking for someone who is passionate about building scalable, resilient and highly available systems and can help us take Order APIs through its next evolution.
As a tech lead on the Orders Core team, you will
You will:

• Play a crucial role in building solutions for our first and third-party customers that support our mission of empowering our sellers to succeed by helping them throughout their entire business lifecycle.
• Build and maintain highly reliable, available and resilient Orders system.
• Lead the design/development of Orders API solutions that are used by first and third-party developers to interact with the orders platform
• Lead by example and help foster a culture of positivity, psychological safety, and inclusivity within the team
• Work with other engineers and PM's across multiple teams to gather requirements, design, develop, test, launch, and maintain features
• Mentor other engineers and contribute to the technical direction of the team
• Provide technical expertise and guidance to other engineers (both on our team and outside of our team)
• Help maintain and improve the processes we use to manage our work
• Be excited to work in the middle of the Orders ecosystem and solve complex problems that require high availability and reliability
• Be on-call for the applications our team owns

If you share our passion for this mission, and are eager to solve these complex challenges, please reach out to us!
Qualifications
You have:

• 8+ years of industry experience designing and building APIs using Java or an equivalent language
• Experience with, and a passion for, creating and maintaining a public API
• Experience with complex distributed systems that require high throughput and reliability
• Experience with orders systems (ecom, retail, restaurant, appointments, etc.) or equivalent multi component large size / scale system
• Experience leading complex technical projects, e.g. cross-team programs
• A strong sense of customer empathy and an interest in influencing the direction of the product
• Excellent software engineering knowledge and the ability to provide technical mentorship and guidance.

Technologies we use:

• Java / Guice / MySQL / Protocol Buffers / gRPC / JUnit / jOOQ / Redis / Kafka / git / Bazel / Zookeeper / AWS / DynamoDB

Qualifications
You have:

• 8+ years of industry experience designing and building APIs using Java or an equivalent language
• Experience with, and a passion for, creating and maintaining a public API
• Experience with complex distributed systems that require high throughput and reliability
• Experience with orders systems (ecom, retail, restaurant, appointments, etc.) or equivalent multi component large size / scale system
• Experience leading complex technical projects, e.g. cross-team programs
• A strong sense of customer empathy and an interest in influencing the direction of the product
• Excellent software engineering knowledge and the ability to provide technical mentorship and guidance.

Technologies we use:

• Java / Guice / MySQL / Protocol Buffers / gRPC / JUnit / jOOQ / Redis / Kafka / git / Bazel / Zookeeper / AWS / DynamoDB