[Remote] Senior/Staff Backend Software Engineer, Mobile App User Acquisition

Note: The job is a remote job and is open to candidates in USA. StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision. They are seeking a Senior/Staff Backend Software Engineer to design and build backend services and pipelines for mobile app user acquisition campaigns, focusing on high-performance, real-time advertising.ResponsibilitiesDevelop high-performance, data-intensive microservices (primarily in Go) that drive real-time bidding and user acquisition outcomes for mobile appsArchitect and maintain event-driven data pipelines that process billions of mobile signals daily, ensuring low-latency and highly available servicesCollaborate with data scientists and product teams to integrate ML models and sophisticated targeting logic into the bidding process to achieve optimal campaign performanceWork with our evolving stack, including Go, Ruby on Rails, Aerospike, Redis, Elasticsearch, Kafka, Redshift, ScyllaDB, GraphQL, and other emerging technologiesWrite performance-efficient, memory-optimized code and continually refine services for reliability, scalability, and speedPartner with analytics and data engineering to build and optimize reporting systems that surface actionable insights for our clients’ user acquisition campaignsSkills5+ years of experience as a Backend Software Engineer, with exposure to large-scale distributed systems and data pipelines in a mobile user acquisition environmentStrong Problem-Solving: Demonstrated expertise in algorithms, data structures, and complex system design—comfortable tackling low-latency, high-throughput challengesDatabase Mastery: Experience working with both relational and NoSQL databases (e.g., Aerospike, Redis, ScyllaDB) for storing and retrieving large volumes of dataMicroservices & Messaging: Hands-on experience with building microservices and using message queues (Kafka, SQS, Kinesis) to handle massive event streams in real timePerformance Focus: Proven track record of writing highly optimized, scalable code in Go or similar languagesTeam Player: Excellent communication skills and ability to collaborate in a cross-functional, globally distributed environmentBenefitsHighly competitive salaryRetirement/ 401K/ Pension Savings globallyCompetitive Paid time off packages including birthday's off!Access to a comprehensive mental health care programHealth benefits from day one of employmentWork from home reimbursementsOptional global WeWork membership for those who want a change from their home office and hubs in London and TorontoRobust training and onboarding programCoverage and support of personal development initiatives (conferences, courses, books etc)Access to StackAdapt programmatic courses and certifications to support continuous learningAn awesome parental leave programA friendly, welcoming, and supportive cultureOur social and team events!Company OverviewStackAdapt is a multi-channel programmatic advertising platform that helps maximize digital marketing efforts through data-driven solutions. It was founded in 2014, and is headquartered in Toronto, Ontario, CAN, with a workforce of 1001-5000 employees. Its website is https://www.stackadapt.com.Company H1B SponsorshipStackAdapt has a track record of offering H1B sponsorships, with 1 in 2026, 4 in 2025, 2 in 2024, 1 in 2023. Please note that this does not guarantee sponsorship for this specific role.