Sr Software Engineer

The Company

PayPal has been revolutionizing commerce globally for more than 25 years. Creating innovative experiences that make moving money, selling, and shopping simple, personalized, and secure, PayPal 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. PayPal 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 PayPal or Venmo account balance, PayPal 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 PayPal, 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.

Job Summary:

We are seeking a skilled Service Mesh Engineer to help contribute to the design, implementation, and maintaining of the service mesh infrastructure across our distributed systems. The ideal candidate will have deep expertise in service mesh technologies, container orchestration, and microservices architecture, with a strong focus on reliability, security, and observability.

Our team is an essential part of the Infrastructure and Cloud Platforms group. We provide intelligent routing services at many different layers for the services deployed across our environments. Your role will involve designing and implementing a service mesh to manage service to service communication, service discovery, security, and reliability across both on prem and cloud.
This job delivers complete solutions spanning all phases of the Software Development Lifecycle (SDLC). It involves advising management on project-level issues, guiding junior engineers, operating with little supervision, and applying knowledge of technical best practices.

You will work collaboratively with teams across the Infrastructure and Cloud Platforms organization to ensure that the service mesh delivers on our commitments to performance, availability, and maintainability. Helping the team deliver on our vision of an easily managed service to service communication layer will be how you make an impact.

• We work in a collaborative agile format, where team mates can contribute in many areas.
• You will be able to work on the full SDLC from design to implementation, testing, maintenance and automation
• Your work will influence technical direction and decisions as we chart the path forward toward new architecture


Core Technical Skills:

Service Mesh Tech: Hands-on experience with Istio, Linkerd, Consul Connect, or AWS App Mesh; Envoy Proxy management; strong grasp of service discovery, load balancing, circuit breaking, retries, and fault injection.

Programming: Proficient in Go or Python for automation/CLI tool development; knowledgeable in concurrent programming, networking libraries, API integrations, and microservices.

Container Orchestration: Practical knowledge of Kubernetes (CRDs, operators, networking), Docker, Helm, and GitOps.

Networking & Security: Deep understanding of TCP/IP, HTTP/2, gRPC, TLS/mTLS, network policies, microsegmentation, and zero-trust security.

Observability: Experience with distributed tracing, metrics (Prometheus/Grafana), log aggregation, SLI/SLO monitoring.

Command Line: Advanced bash scripting, awk/sed usage, packet analysis (tcpdum