Senior Backend Engineer

2 weeks ago

Herzliya, Tel Aviv, Israel AppsFlyer Full time $150,000 - $200,000 per year

AppsFlyer is known for its massive backend production. In any given second, our servers produce valuable insights from millions of incoming events, crunching user data, serving requests, and communicating at massive scale.

The Engagement Team owns the full user experience around our links – from creation and promotion (QR codes, banners, etc.) to deep linking and redirection. Our work ensures users land exactly where they should, whether in-app or in the app store, making us a critical touchpoint in the attribution flow.

We're looking for a Senior Backend Engineer to help us evolve and scale our real-time engagement infrastructure. You'll solve high-throughput, low-latency challenges and craft APIs used by some of the largest mobile apps in the world.

What You'll Do

  • Design, develop, and own core features and products related to link engagement and redirection at massive scale
  • Tackle complex problems in real-time, high-throughput systems using modern cloud-native tooling such as CDNs, WAF, Web Handlers, and Kafka
  • Lead API design and implementation across systems – with a strong focus on security, scale, performance, and reliability
  • Improve system performance, stability, and observability across the board
  • Collaborate with Product Managers and Engineers to shape product direction and deliver customer value
  • Contribute to engineering excellence via code reviews, mentoring, and technical leadership
  • Continuously evaluate and integrate new technologies to keep our stack modern and efficient

What You Have

  • 5+ years of backend development experience
  • Proven expertise in designing, building, and scaling APIs for production environments
  • Strong knowledge of server-side technologies, HTTP/gRPC, inter-service communication, and performance tuning
  • Experience working with high-scale, low-latency distributed systems
  • Hands-on experience with cloud infrastructure (preferably AWS), including CDN, WAF, and monitoring tools
  • Deep familiarity with production-grade databases (SQL and/or NoSQL)
  • B.Sc. in Computer Science or equivalent
  • Ownership mentality, a team player approach, and passion for quality
  • Curiosity and ability to quickly ramp up on new technologies and architectures

Bonus Points

  • Experience with Go, Clojure, or Java
  • Background in functional programming
  • Experience with event-driven architectures and tools like Kafka
  • Contributions to open-source projects, blog posts, or tech talks
  • Referred by an AppsFlyer team member

As a global company operating from 25 offices across 19 countries, we reflect the human mosaic of the diverse and multicultural world in which we live. We ensure equal opportunities for all of our employees and promote the recruitment of diverse talents to our global teams without consideration of race, gender, culture, or sexual orientation. We value and encourage curiosity, diversity, and innovation from all our employees, customers, and partners.

"As a Customer Obsessed company, we must first be Employee Obsessed. We need to make sure that we provide the team with the tools and resources they need to go All-In." Oren Kaniel, CEO

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