{"id":2493683,"url":"https://alion.io/job/appsflyer-senior-backend-engineer-2","title":"Senior Backend Engineer","company":{"id":3446,"name":"AppsFlyer","domain":"appsflyer.com","url":"https://alion.io/company/appsflyer","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":75,"open_postings":10,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":53,"computed_at":"2026-10-14T06:34:16Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Kyiv, Ukraine"],"countries":["UA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":33000,"max_usd":95000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6426},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache HTTP Server","optional":false},{"name":"AppsFlyer SDK","optional":false},{"name":"CI/CD","optional":false},{"name":"Scala","optional":false},{"name":"Spark","optional":false},{"name":"Airflow","optional":true},{"name":"BigQuery","optional":true},{"name":"Clojure","optional":true},{"name":"Copilot","optional":true},{"name":"Cursor","optional":true},{"name":"ETL/ELT","optional":true},{"name":"Google BigQuery","optional":true}],"status":"live","first_seen_at":"2026-05-25T06:51:34Z","employer_posted_date":"2026-09-07","last_verified_at":"2026-10-14T16:32:06Z","board_verified":true,"closed_at":null,"days_open":142,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":142},"description":"AppsFlyer is known for its massive backend production.\nAt 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.\nTo maintain the universe we call AppsFlyer, we practice modern production operations with a complete self-serve CI/CD platform, a highly integrated observability stack for our micro-services, backends, and infrastructure, a culture of ownership and eagerness for quality.\nThe Analytics group is responsible for showing our clients the stories their data is telling. Through complex aggregation, mission tailored analytical databases and carefully crafted APIs we are able to provide slice and dice analysis in our beautiful dashboards and through the use of external integrations.\nOur group mixes disciplines from back-end, data, AI and front-end engineers and we’re looking for great Data-Oriented Backend Engineer developers that are passionate about what they do, who want to dive into the worlds of big data, microservices and production management at our scale, to help us reach our vision and goal: to be the best analytics suite in our business market.\nWhat you'll do\nDevelop end-to-end, both client-facing and data infrastructure features, from data processing to database choice and modeling implementation\nCollaborate with product managers and software engineers to deliver complex products.\nAnalyze and improve performance, scalability and stability of our systems, environments and tools.\nIf you're up to the challenge - Speak at meetups, write blog posts, speak at conferences, contribute to existing open source projects and release new open source software.\nWhat you have\n5+ years of development experience with a passion for excellence\nExperience in data engineering with a focus on Apache and Scala-Spark / py-spark)\nExperience with high throughput, low latency, mission-critical distributed systems\nGreat communication skills in English\nB.Sc. in Computer Sciences or an equivalent.\nBonus Points\nExperience with large-scale production databases\nExperience with Airflow\nStrong server-side skills.\nExperience production grade BigQuery ETL and DBs.\nExperience with production grade GO BE services.\nExperience with production grade Clojure BE services.\nAn “AI mindset”: stays up to date with the AI landscape, explores tools like Cursor or GitHub Copilot, and looks for ways to boost productivity through AI\nRecommended by an AppsFlyer employee\nBenefits Package includes:\nHealth Insurance\nPaid Unlimited Vacation Days + all national holidays + additional recharge days\nMeals Reimbursement\nSport Reimbursement\nBreakfast in the office\nMental health program\nTeam building, happy hours, and other team activities\nPaid sick days\nSnacks, fruits & ice cold beer\nAll new team members are provided with a brand-new Mac laptop with 2 monitors and a Starter package\nPosition number - 2812\nAs 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.\n“As a Customer Obsessed company, we must first be Employee Obsessed. 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