---
title: 'Senior Backend Engineer at AppsFlyer'
canonical: 'https://feeny.ai/job/senior-backend-engineer-appsflyer-warsaw-g8881tmpcznb'
type: 'job'
last_seen: '2026-10-14'
---

# Senior Backend Engineer at AppsFlyer

- **Company:** AppsFlyer
- **Location:** Warsaw, Poland
- **Posted:** 2026-10-11
- **Last confirmed live:** 2026-10-14
- **Apply:** https://careers.appsflyer.com/jobs/position/8869908002?gh_jid=8869908002

## Job description

AppsFlyer is the market leader in the mobile attribution business. We provide analytical tools to help thousands of app developers and agencies reach decisions about where, when, and how to market their apps.

We do this by consuming enormous amounts of data and presenting it in useful (and cool!) ways that are actionable and provide real and immediate value to our customers.

We are looking for an experienced full-stack developer to join our Management team. The Management team manages a variety of services and tools, external and internal. Our missions include diverse business cases, a wide range of APIs, implementation of third-party services, and collaboration with multiple other teams in the company.

Our team uses technologies and frameworks such as (buzzword alert): Node.js, React, Go, AWS, GCP, Kafka, Neo4j, GraphQL, Protobuf, Redis, PostgreSQL, among others.

The Management team is part of the SaasLab group which owns the SaaS platform and control plane of AppsFlyer - the foundational layer that manages users, accounts, billing, API gateway, authentication, permissions, and business integrations. SaasLab’s systems serve as the backbone for every product and feature at AppsFlyer, handling millions of API calls daily and supporting thousands of enterprise customers worldwid

## What You'll Do

- End-to-end development of AppsFlyer products and features, from front-end to back-end
- Collaborate with Product Designers, Product Managers and Software Engineers to deliver amazing products
- Build & ship features at high pace in a fast-moving AI development environment
- Design, develop, and maintain scalable backend and frontend systems.
- Develop complex applications using modern Full Stack technologies.
- Work with microservices, event-driven architectures, and distributed systems.
- Continuously learn and evaluate new technologies in the everlasting effort to perfect our products

-

- Contribute to a strong engineering culture of ownership, collaboration, quality, and continuous improvement

## What You Have

- 5+ years of software development experience, with strong backend engineering skills
- Proven track record owning end-to-end solutions with minimal supervision, from ambiguous problem to production
- Strong frontend and backend engineering skills, with deep expertise in React, TypeScript, and modern web development practices
- Solid system design and architecture skills, able to reason about trade-offs across a system's moving parts, not just the code you touch
- Comfortable with ambiguity and lower-clarity problems, able to balance moving fast with doing it right
- Deep experience with modern development practices (unit and integration testing, CI/CD pipelines, code quality, observability)
- Highly product-oriented, you think beyond "just code" and understand how customers actually use what you build
- Experience mentoring other engineers and setting a technical bar through code review and example
- Experience using AI tools within the software development lifecycle, including the ability to review, validate, and improve AI-generated code
- Proficiency in written and verbal English
- B.Sc. in Computer Science or equivalent practical experience

Bonus Points

- Experience with SaaS platform systems — identity, access management, billing, multi-tenancy, API gateways, or similar control-plane domains
- Experience working on core entity systems, identity/account management, or SaaS onboarding flows
- Experience with Node.js, GraphQL, or graph databases (Neo4j)
- Experience with platform/infrastructure teams that serve internal engineering customers
- Experience in the ad-tech ecosystem, preferably with hyper-scale systems
- Recommended by an AppsFlyer employee

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.”](https://www.appsflyer.com/blog/how-all-in-shaped-our-story-and-could-define-your-career/) Oren Kaniel, CEO

## About AppsFlyer

## Company Overview
- **One-liner**: AppsFlyer provides a privacy-first, AI-powered Modern Marketing Cloud for unified measurement, data collaboration, and marketing analytics across mobile, web, CTV, and desktop.
- **Entity Type**: Private (Series D+; raised $1B in June 2026 at a $2.7B valuation)
- **Headquarters**: San Francisco, California, United States (also global HQ in Herzliya, Israel)
- **Founded**: 2011
- **Founders**: Oren Kaniel (CEO) and Reshef Mann (CTO)

## Core Business
- Primary industry: Marketing technology (MarTech) – mobile attribution, measurement, analytics, data collaboration
- Target customers: B2B – brands, marketers, app developers, and agencies of all sizes (startups to global enterprises)
- Mission: “Deliver AI-powered, privacy-first measurement technologies that turn data into growth opportunities.”

## Products & Services
- **Measurement Suite**: Omnichannel attribution and analytics to measure marketing performance across mobile, web, CTV, and desktop (SaaS).
- **Deep Linking Suite**: Tools for personalized user experiences and seamless cross-platform engagement (SaaS).
- **Data Collaboration Suite**: Privacy-safe data clean room and collaboration platform for secure data sharing with partners (SaaS).
- **Agentic AI Suite**: Autonomous, AI-driven workflows for user acquisition, retention, and marketing optimization (SaaS).

## Market Standing
- **Valuation**: $2.7 billion (as of June 2026)
- **Key Metric**: Total funding raised – over $1.2B (Series A $7.1M, B $20M, C $56M, D $210M in 2020, plus $1B round in 2026)
- **Notable Investors/Partners**: General Atlantic, Google, Meta, Unity, Moloco, Pitango Venture Capital, Qumra Capital, Goldman Sachs, Deutsche Telekom Capital Partners
- **Growth Signals**: 
  - Evolved from mobile attribution to “Modern Marketing Cloud” (Nov 2025)
  - Acquired Devtodev (gaming analytics) and oolo (AI user acquisition) in 2023
  - 15,000+ brands, 100,000+ active apps, 190+ countries reached
  - ~1,600 employees across 20+ offices globally (2026)

## Competitive Advantages
- **Privacy-first architecture**: Built for a world of rising privacy regulations; data clean room and consent-based measurement are core differentiators.
- **Industry standard for mobile attribution**: Recognized as the leading MMP (Mobile Measurement Partner) for over a decade.
- **AI-native platform**: Agentic AI Suite and automated workflows give marketers a competitive edge in efficiency and insight.
- **Global scale and partner ecosystem**: Integrates with Apple, Google, Meta, Amazon, AWS, and 8,000+ technology partners.

## Strategic Focus
- **AI and automation**: Deepening AI capabilities to enable autonomous marketing decisions.
- **Omnichannel expansion**: Moving beyond mobile to unify measurement across CTV, desktop, and offline.
- **Privacy-safe data collaboration**: Growing the Data Collaboration Suite to help brands and partners share insights without compromising privacy.
- **Continued global expansion**: Leveraging 20+ offices to serve local markets and enterprise clients.

## Why Work Here
- **Culture**: Described as “approachable professionals, passionate, flexible, and always learning” – encourages curiosity, experimentation, and learning from mistakes. [appsflyer.com](https://www.appsflyer.com/company/about/)
- **Stock options**: Every employee receives a stock option package. [careers.appsflyer.com](https://careers.appsflyer.com/)
- **Global mobility**: Global Employee Exchange Program (GEEP) lets employees spend a month in another office. [careers.appsflyer.com](https://careers.appsflyer.com/)
- **Perks**: Private health insurance, complimentary fitness classes, environmental sustainability support, flexible work arrangements. [careers.appsflyer.com](https://careers.appsflyer.com/)
- **Work model**: Mix of remote, hybrid, and in-office roles depending on location and team (e.g., some roles listed as “Remote”, others “In-Office”). [builtin.com](https://builtin.com/company/appsflyer)
- **Engineering culture**: Mission-critical platform; emphasis on data accuracy, privacy, and AI innovation. Teams are global and collaborative.

## Sources
1. [appsflyer.com](https://www.appsflyer.com/company/about/)
2. [careers.appsflyer.com](https://careers.appsflyer.com/)
3. [wikipedia.org](https://en.wikipedia.org/wiki/AppsFlyer)
4. [builtin.com](https://builtin.com/company/appsflyer)
5. [linkedin.com](https://www.linkedin.com/company/appsflyerhq)

## Other roles at AppsFlyer

- [Backend Engineer](https://feeny.ai/job/backend-engineer-appsflyer-warsaw-9ejst80pc5ep) — Warsaw, Poland
- [Senior SW Engineer](https://feeny.ai/job/senior-sw-engineer-appsflyer-warsaw-0h6ysshqzwq2) — Warsaw, Poland
- [Senior Backend Engineer](https://feeny.ai/job/senior-backend-engineer-appsflyer-warsaw-xj5r3g12dgzg) — Warsaw, Poland
- [Senior Data Scientist](https://feeny.ai/job/senior-data-scientist-appsflyer-herzliya-nsy8ebk7y5n8) — Herzliya, Israel
- [Product Partnerships Lead](https://feeny.ai/job/product-partnerships-lead-appsflyer-herzliya-x3tn16jvwczp) — Herzliya, Israel
- [Application Security Team Lead](https://feeny.ai/job/application-security-team-lead-appsflyer-herzliya-kqj8sxgkndqb) — Herzliya, Israel
- [Data Analyst](https://feeny.ai/job/data-analyst-appsflyer-herzliya-4jy3p2mwfwn4) — Herzliya, Israel
- [Assistant Controller - Corporate Team](https://feeny.ai/job/assistant-controller-corporate-team-appsflyer-herzliya-50bh7f1p2kqs) — Herzliya, Israel
- [Senior IT Infrastructure Operations](https://feeny.ai/job/senior-it-infrastructure-operations-appsflyer-herzliya-8bjn5wwfydtw) — Herzliya, Israel
- [Senior Product Manager](https://feeny.ai/job/senior-product-manager-appsflyer-herzliya-hq5085v658jt) — Herzliya, Israel