{"id":159819,"url":"https://alion.io/job/smartly-software-engineer-large-scale-data-systems","title":"Software Engineer, Large-Scale Data Systems","company":{"id":56692,"name":"Smartly","domain":"smartly.io","url":"https://alion.io/company/smartly-io","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":90,"open_postings":32,"ghost_share":0,"stale_share":0.406,"repost_share":0,"time_to_fill_p50_days":55,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Helsinki, Finland"],"countries":["FI"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"Amazon Kinesis","optional":false},{"name":"Amazon Redshift","optional":false},{"name":"Apache Kafka","optional":false},{"name":"BigQuery","optional":false},{"name":"ClickHouse","optional":false},{"name":"Databricks","optional":false},{"name":"Flink","optional":false},{"name":"Google BigQuery","optional":false},{"name":"Java","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Ruby","optional":false},{"name":"Ruby on Rails","optional":false},{"name":"Scala","optional":false},{"name":"Snowflake","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-06-05T10:35:38Z","employer_posted_date":"2026-09-29","last_verified_at":"2026-10-18T04:27:53Z","board_verified":true,"closed_at":null,"days_open":134,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":134},"description":"We are looking for a Software Engineer to join team Aqueduct, a team building our data platform for powering large-scale cross-platform advertising. Our ideal candidate is a professional who has experience in the domain of data engineering, and knows how to design, implement and maintain data storages and pipelines using industry standard tools.\nFor our customers, ensuring their data is available and composable can:\nunlock the potential of creative automation with image and video templates\npower agentic workflows that utilise the data\nallow analysis of the relationship between product data and ad performance.\nBeing able to sync our customers’ product data across multiple advertising channels consistently and with minimal delays ensures that:\nthe ads consumers see have the latest information\nproducts that are out of stock are not advertised\nregulatory requirements are met\nThe team currently has a backend written in Ruby on Rails, and we own small parts of the frontend written in TypeScript and React. We’re moving our data systems from Ruby to a language and architecture better suited for the workload and capable of scaling with our growth. We're looking for an experienced engineer to join the team and contribute to the build and design of this new platform using the right tools for the job.\nWhat You Will Do\nBuild a large scale data storage and processing system that needs to process billions of records per day\nContribute to the architecture and engineering excellence inside the team by collaborating with other engineers\nCollaborate with stakeholders from across the organization: engineering, product and business\nParticipate in defining and monitoring SLAs, and follow SRE best practices to ensure the stability and availability of the system\nBuild APIs for internal and external consumers of the data\nAffect the ROI for billions of dollars in ad spend\nWhat We Are Looking For\n3-5 years of industry experience\nStrong programming skills (e.g., Python, Scala and/or Java)\nSome experience with data processing frameworks (e.g., Spark, Flink, Databricks, Snowflake, BigQuery, Redshift, ClickHouse)\nFamiliarity with streaming systems (e.g Kafka, Kinesis)\nExperience with SQL and some RDBMS (PostgreSQL, Citus, etc.)\nExperience contributing to large-scale data systems\nExperience with Ruby on Rails is considered a plus\nAbility to work in a hybrid capacity from our Helsinki office 3 days a week\nWhat We Offer You\nAt Smartly, we offer a place where you can advance your career. Here, you'll find:\nAn Inclusive Global Culture: Join a team of over 750 Smartlies, representing more than 60 nationalities across 24 locations in 13 countries. We cultivate a culture built on trust, transparency, and open feedback, where diverse perspectives are valued and encouraged.\nGlobal Impact: Contribute to a company making a global impact, directly influencing our customers' success and business growth.\nFocus on Wellbeing: We prioritize your health with healthcare packages, mental health services, and a commitment to work-life balance through paid holidays and family leave.\nComprehensive Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and career development opportunities.\nFlexible Hybrid Workplace: Experience a hybrid work model, balancing office collaboration with remote work, and the option to work abroad for up to 30 days annually.\nApply Now and Build Your Future with Smartly!\nCurious what it’s like to work at Smartly? Visit our Careers page to see how we grow, collaborate, and make impact together.\nAbout Smartly\nSmartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers. Our comprehensive advertising platform seamlessly integrates the capabilities of media, creative, and intelligence to power more than 800 billion impressions and generate more than 300 billion creatives annually, delivering tangible business outcomes for brands and advertisers.\nSmartly is the only company in the industry recognized as a Leader in The Forrester Wave: Creative Advertising Technologies with PwC validating the results it delivers for brands. We manage creative and media for 700+ brands worldwide and $6B in ad spend across the largest media platforms, including Facebook, Google, Instagram, Pinterest, Snap, and TikTok. Our end-to-end technology, unmatched access to media platforms and exceptional customer service help Fortune 500 brands to reach and engage consumers and learn what performs best.Smartly is a multinational and diverse team of 750+ Smartlies from 60+ nationalities, working in 13 countries. Together, we want to create and maintain an inclusive environment where everyone feels respected and heard. Our Diversity, Equity & Inclusion approach is at the heart of it.\nVisit Smartly to learn more.\nThe processing of your information is described in our Candidate Privacy Notice.","description_format":"text","description_chars":4908,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Hybrid work","Parental leave"],"hiring_locations":[{"name":"Finland","iso":"FI","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Advertising","Marketing & Sales AI"],"lifecycle":[{"event":"open","at":"2026-06-05T10:35:38Z"}],"visa":[],"liveness":{"score":15,"band":"cold","label":"Long shot","p_open":1,"p_active":0.537,"p_room":0.28,"age_days":133,"expected_fill_days":55,"reasons":["conf:3","velocity","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/smartly-software-engineer-large-scale-data-systems","json_url":"https://alion.io/job/smartly-software-engineer-large-scale-data-systems.json","meta":{"generated_at":"2026-10-18T06:08:45Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":9201,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":56692},"rest":"https://alion.io/mcp/rest/get_company?id=56692"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsmartly-software-engineer-large-scale-data-systems"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsmartly-software-engineer-large-scale-data-systems"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsmartly-software-engineer-large-scale-data-systems"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/smartly-software-engineer-large-scale-data-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsmartly-software-engineer-large-scale-data-systems"}]}