{"id":175294,"url":"https://alion.io/job/gismart-data-engineer","title":"Data Engineer","company":{"id":62407,"name":"Gismart","domain":"gismart.com","url":"https://alion.io/company/gismart","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Airflow","optional":false},{"name":"Amazon Redshift","optional":false},{"name":"AppsFlyer SDK","optional":false},{"name":"AWS","optional":false},{"name":"ETL/ELT","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"Stripe","optional":false},{"name":"Tableau","optional":false},{"name":"Adjust","optional":true},{"name":"Apache Iceberg","optional":true},{"name":"dbt","optional":true},{"name":"Spark","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-08-05T11:41:38Z","employer_posted_date":"2026-08-05","last_verified_at":"2026-10-16T11:52:50Z","board_verified":true,"closed_at":null,"days_open":72,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":72},"description":"About us:\nGismart is a value-driven mobile app developer with a strong presence in the Health & Wellness, Utilities, and Music app markets. We have recently achieved a significant milestone of over 1 billion downloads worldwide, taking a step toward our mission of cultivating the well-being of people worldwide. With headquarters in London, UK, Gismart is a dynamic global company with a reach extending across Europe and far beyond. Our determined team consists of 250 individuals who bring diversity, creativity, innovation, and relentless drive to the company. Gismart unites professionals from diverse backgrounds in entertainment, music, and tech, allowing us to play to each other’s strengths and succeed as a team.\nOur mission:\nBecome a stepping stone on our customers’ journeys of self-improvement.\nOur values:\nDeliver what matters\n\nRespect and support others\n\nInitiate and own\n\nVoiceopenly\n\nExecute with quality\n\nIf you are passionate about mobile app development and want to join a company that’s reshaping the industry, Gismart is the place for you. We provide exciting career opportunities, a supportive workplace culture, and the chance to contribute to a team that is making a tangible impact. For more information on Gismart, visit gismart.com.\nAbout project\nFitMe is a fitness app created for people who want to stay active without long, repetitive workouts. It offers short, easy-to-follow routines that can be done at home with no equipment. FitMe is perfect for busy people who want to maintain their health, boost energy levels, and feel good every day - without going to the gym or spending hours on exercise.\nWhat you will do:\nStakeholder support: ad-hoc validation of figures, investigation of discrepancies between dashboards, ensuring availability of the BI platform.\n\nDevelopment and support of ETL/ELT pipelines for analytical reports (cohort revenue, LTV, retention, KPI by creatives, post-purchase analytics).\n\nSupport for attribution models (Web↔Mobile mapping, multi-locale cost-cohort resolve, last-click vs raw events).\n\nIntegrations with external sources: Meta Marketing API, AppsFlyer, AppMetrica, Stripe, Tableau Server (TSC), Birch.\n\nData quality assurance: schema/freshness/volume checks, broken-snapshot detection, anti-bot-traffic filtering.\n\nPerformance optimization of queries and procedures in Redshift.\n\nCollaboration with BI Team, Product / UA / Billing analysts.\n\nKey qualifications:\n1-2 years of commercial experience in data engineering / analytics engineering / BI development.\n\nExperience with data warehouse, data lake and data lakehouse concepts.\n\nProven experience in designing, implementing and supporting ETL/ELT pipelines.\n\nExperience with AWS, Amazon Redshift, Apache Airflow.\n\nAdvanced SQL, hands-on experience in designing production-level Python code.\n\nWillingness to deal with business logic (subscription, monetization, attribution) - with team support.\n\nWould be a plus:\nExperience with Infrastructure as Code (Terraform).\n\nExperience with dbt, Apache Spark, Apache Iceberg\n\nExperience with UA-attribution stack (AppsFlyer, AppMetrica, Adjust, SKAN, GA4) and UA cost APIs (Meta, Google Ads, TikTok, AppLovin).\n\nEmployee Benefits:\nRemote-First Culture: Our team is diverse and extensive, just like our product portfolio. We provide a flexible working schedule and let you work anywhere in the world, either remotely or in one of our corporate hubs.\n\nСoworking Compensation: We provide 100% compensation for coworking spaces in Ukraine (except Kyiv, where we have a cozy and autonomous hub) and 50% compensation for coworking spaces worldwide to make sure that everyone has a comfortable and inspiring workspace.\n\nFree Office Lunches: We want you to stay fueled and focused, so we provide delicious free lunches for everyone working from our hubs. It’s one less thing for you to worry about during a productive workday.\n\nPublic Holidays Policy: Gismart observes public holidays based on the Ukrainian or Polish holiday calendars. Employees working in other locations are entitled to 12 public holidays per year.\n\n100% Sick Leave Compensation.\n\nMental and Physical Health: To help you stay happy and healthy, Gismart will partially cover your medical insurance, sports activities, therapy costs.\n\nPersonal Equipment Policy: Of course, we’ll provide you with all the equipment you need or cover the maintenance cost for your own tools.\n\nPersonal Learning and Development: We love to see you learn and grow, so Gismart will cover 70% of your professional development courses. We’ll also pay for 100% of corporate English courses.\n\nTime-Off Policy: Every employee gets 18 working days of paid vacation and 3 personal days per year, with an extra day added for each year at Gismart.\n\nCorporate Events: We are remote-first, but we love meeting up in person. 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