Senior Software Engineer - Scala

Pay Pal has been revolutionizing commerce globally for more than 25 years. Creating innovative experiences that make moving money, selling, and shopping simple, personalized, and secure, Pay Pal empowers consumers and businesses in approximately 200 markets to join and thrive in the global economy.

We operate a global, two-sided network at scale that connects hundreds of millions of merchants and consumers. We help merchants and consumers connect, transact, and complete payments, whether they are online or in person. Pay Pal is more than a connection to third-party payment networks. We provide proprietary payment solutions accepted by merchants that enable the completion of payments on our platform on behalf of our customers.

We offer our customers the flexibility to use their accounts to purchase and receive payments for goods and services, as well as the ability to transfer and withdraw funds. We enable consumers to exchange funds more safely with merchants using a variety of funding sources, which may include a bank account, a Pay Pal or Venmo account balance, Pay Pal and Venmo branded credit products, a credit card, a debit card, certain cryptocurrencies, or other stored value products such as gift cards, and eligible credit card rewards.

Our Pay Pal, Venmo, and Xoom products also make it safer and simpler for friends and family to transfer funds to each other. We offer merchants an end‑to‑end payments solution that provides authorization and settlement capabilities, as well as instant access to funds and payouts. We also help merchants connect with their customers, process exchanges and returns, and manage risk.

We enable consumers to engage in cross‑border shopping and merchants to extend their global reach while reducing the complexity and friction involved in enabling cross‑border trade.

Our beliefs are the foundation for how we conduct business every day. We live each day guided by our core values of Inclusion, Innovation, Collaboration, and Wellness. Together, our values ensure that we work together as one global team with our customers at the center of everything we do – and they push us to ensure we take care of ourselves, each other, and our communities.

The Ads Tech team is building Pay Pal’s next generation advertising platform. It’s a greenfield project based on advanced AI and large systems engineering to best utilize the wealth of merchant and transaction data available within the firm. The Ads Tech engineer’s role will help to design and develop key parts of the platform. We believe in egoless programming – everybody is an equal and we value learning from and helping each other.

We enjoy solving hard problems, but we recognize we cannot do so as individuals.

Delivers complete solutions spanning all phases of the Software Development Lifecycle (SDLC) (design, implementation, testing, delivery and operations), based on definitions from more senior roles.

Operates with little day‑to‑day supervision, making technical decisions based on knowledge of internal conventions and industry best practices.

Leverages internal guidelines and external industry standards to inform architecture and design decisions.

• Minimum of 5 years of relevant work experience and a Bachelor’s degree or equivalent experience.

• Proficiency in at least one functional programming language, preferably Scala and its Type Level ecosystem.
• 5+ years of experience in designing and architecting scalable backend systems with a focus on cloud‑native solutions, microservices, and serverless architectures.
• Expertise in designing and implementing fault‑tolerant systems with a focus on high availability and disaster recovery.
• Experience with functional Effects libraries such as Cats‑Effect or ZIO.
• Python development experience specially in a machine learning context.
• Experience with using Agile/Scrum methodology for software development.
• Experience with large‑scale, high‑performance systems.
• Knowledge of the Ad Tech…