Senior Backend Engineer

1 week 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

  • Senior Backend Engineer

    1 week ago

    Herzliya, Tel Aviv, Israel Cynomi Full time ₪90,000 - ₪120,000 per year

    We are looking for a senior backend engineer with a deep passion for innovation, cybersecurity, and emerging technologies. This is an opportunity to lead research, develop high-scale distributed systems, and introduce groundbreaking ideas in a fast-paced startup environment. You'll have the freedom to explore, challenge conventions, and push cybersecurity to...

  • Senior Backend Engineer

    1 week ago

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

    About FeelBetterFeelBetter is an AI-powered digital healthcare company based in Herzliya. We've developed a cutting-edge SaaS platform for population and medication management, empowering pharmacists and clinicians to make optimal treatment decisions for their patients.Our solution is deployed in both Israel and the US, and we are aggressively expanding our...

  • Backend Engineer – Energy

    1 week ago

    Herzliya, Tel Aviv, Israel Nayax Full time $104,000 - $130,878 per year

    Nayax is a global fintech company (NASDAQ; TASE: NYAX) and a leading provider of cashless payment, consumer engagement, and business management solutions for the unattended retail sectors.We are currently seeking a Backend Engineer (Nayax Energy) to join our team and play a pivotal role in shaping the future of our company.Nayax Energy is a dynamic division...

  • Backend Engineer – Energy

    1 week ago

    Herzliya, Tel Aviv, Israel Nayax Full time ₪104,000 - ₪130,878 per year

    Nayax is a global fintech company (NASDAQ; TASE: NYAX) and a leading provider of cashless payment, consumer engagement, and business management solutions for the unattended retail sectors. We are currently seeking a Backend Engineer (Nayax Energy) to join our team and play a pivotal role in shaping the future of our company.Nayax Energy is a dynamic division...

  • Senior Data Engineer

    1 week ago

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

    Senior Data EngineerSU, a leading company in its field in the Sharon region, invites aSenior Data Engineerto join its existing team of highly skilled data engineers and share a passion for turning data into actionable intelligence.Responsibilities:Lead development projects for critical, high-availability, cloud-scale services and APIs.Support clients with...

  • Senior Backend Engineer

    1 week ago

    Herzliya, Tel Aviv, Israel Finonex Full time ₪90,000 - ₪120,000 per year

    Step into our world, where advanced technologies take center stage, transforming the online trading experience.With our cutting-edge approach, we follow edge & new methodologies, constantly pushing boundaries.We offer an excellent work environment where you will be challenged and encouraged to grow professionally.On this role you will:Collaborate with the...

  • Backend Engineer

    1 week ago

    Herzliya, Tel Aviv, Israel AppsFlyer Full time ₪90,000 - ₪120,000 per year

    AppsFlyer is known for its massive backend production. At any given moment, thousands of servers are consuming 150+ billion mobile app events, crunching our users' data, serving requests and communicating on a massive scale.To maintain the universe we call AppsFlyer, we practice modern production operations with a complete self-serve CI/CD platform, highly...

  • PySpark Backend Engineer – AI Security

    1 week ago

    Herzliya, Tel Aviv, Israel Varonis Full time $100,000 - $150,000 per year

    SummaryData has never been more valuable and vulnerable. As cybercriminals become more sophisticated and regulations more strict, organizations struggle to answer one key question: "Is my data safe?"At Varonis, we see the world of cybersecurity differently. Instead of chasing threats, we believe the most practical approach is protecting data from the inside...

  • Senior Full-Stack Software Engineer

    1 week ago

    Herzliya, Tel Aviv, Israel Simplex 3D Full time $104,000 - $130,878 per year

    Simplex 3D is looking for a Senior Full-Stack Software Engineer to join our growing team. We're building the future of 3D urban planning and geospatial visualization, combining photorealistic 3D, AI, and complex cloud architectures. This is a chance to work on cutting-edge technology with real-world impact.ResponsibilitiesDesign, develop, and maintain...

  • Backend Developer

    1 week ago

    Herzliya, Tel Aviv, Israel Varonis Full time $90,000 - $120,000 per year

    SummaryData has never been more valuable and vulnerable. As cybercriminals become more sophisticated and regulations more strict, organizations struggle to answer one key question: "Is my data safe?"At Varonis, we see the world of cybersecurity differently. Instead of chasing threats, we believe the most practical approach is protecting data from the inside...