Middle/Senior Business Analyst (Swedish Ad Platform)

Are you passionate about shaping the future of digital advertising? We are looking for a Business Analyst to join our high-load AdTech project, supporting a global self-serve advertising platform used by thousands of advertisers worldwide. This role offers the flexibility of remote work with occasional team meetups. We at Sigma Software partner with leading technology companies to deliver cutting-edge solutions. Here, you will work alongside international publishers, advertisers, and cross-functional teams to streamline workflows and enable scalable platform growth. You will be part of an innovative environment with professional development opportunities, competitive benefits, and the chance to make a tangible impact on an industry-leading platform. CUSTOMER Our Customer is a Sweden-based AdTech company specializing in advanced self-serve advertising platforms that automate direct transactions between advertisers and major global publishers. Their technology removes traditional friction in ad sales by enabling automation, transparency, and operational efficiency at scale. Platforms are trusted by internationally recognized publishers, including TripAdvisor, Bloomberg, The Washington Post, Opera, and Dow Jones, handling millions of transactions worldwide. PROJECT The project is a strategic architectural transformation toward a Platform-First approach. The company is transitioning from monolithic, client-specific implementations to a standardized, API-driven, multi-tenant ecosystem of reusable microservices. These services power the entire product suite, remaining independent, scalable, and decoupled from frontend or customer-specific customization. Map, analyze, and redesign publisher workflows (onboarding, billing, campaign approval) using BPMN Create and manage the business rules document for core platform capabilities Design standardized workflows “Golden Path” to optimize the multi-tenant architecture Collaborate with the Head of Data & AI to identify automation opportunities Audit live automated processes to verify efficiency and ROI outcomes, tracking metrics such as cycle time, auto-approval rate, and rework percentage Facilitate requirements gathering sessions with internal and external stakeholders Translate complex business needs into actionable specifications for engineering teams Support testing and validation of new features against defined business rules At least 3 years of experience as a Business Analyst Deep understanding of AdTech and/or white-label SaaS operational workflows Proficiency in BPMN, UML, and Swimlane diagramming Advanced ability to interview stakeholders and extract complex business rules and requirements Familiarity with Agile/Scrum methodologies Experience defining and managing API contracts and data models (REST/GraphQL, JSON) Familiarity with A/B testing or experimentation frameworks Proficiency in analytics and BI tools (SQL, Looker, Tableau) At least an Upper-Intermediate level of English WILL BE A PLUS Experience with cloud-native SaaS (AWS/Azure) and CI/CD tooling Background in process governance, release management, RACI matrices, and change control PERSONAL PROFILE Proactive, analytical professional with strong attention to detail Performs effectively in dynamic, high-load environments Translates business needs into clear, actionable technical solutions