Senior Business Analyst

Ciklum is looking for a Senior Business Analyst to join our team full-time in Bulgaria. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Senior Business Analyst, become a part of a cross-functional development team engineering experiences of tomorrow. The Business Analyst is a critical thinker with a keen eye for detail. Actively consulting with stakeholders to investigate and define a shared understanding of the business needs. Working within a fast-paced agile environment, the Business Analyst supports a backend team combining strong analytical skills with a sound technical foundation to drive clarity, alignment and value in the delivery of backend solutions. As a Business Analyst, you will be part of a backend-focused agile team, you will play a pivotal role in defining and communicating technical requirements that guide the development and evolution of our APIs, services, data flows, and systems integrations. You will collaborate with product owners, developers, architects, and other stakeholders to capture complex backend requirements that support robust digital platforms and services. Responsibilities: Act as a bridge between technical stakeholders and business users, translating business needs into scalable backend solutions Apply systems thinking to help stakeholders understand backend system behaviors and integration points Identify upstream/downstream service dependencies, assessing the wider impact of backend changes across the platform ecosystem Collaborate across teams to assess the impact of API changes on other systems and services Work with architects to understand TUI runway and schemas, Business Object Model (BOM), and assist in documentation and sequencing Analyze and interpret API documentation, endpoint definitions, and JSON structures to ensure accurate and consistent communication of functional needs Define both functional and non-functional requirements, ensuring completeness and clarity for the delivery team Define data mappings and service interactions between internal and external systems, ensuring alignment with TUI’s architectural standards Validate requirements related to authentication, security standards, and API consumption patterns in collaboration with technical teams Define clear, testable, and traceable technical requirements that enable accurate implementation and QA processes Use tools such as Postman, Swagger UI, GraphQL playgrounds, or similar to inspect and test APIs as part of the BA process Translate business and stakeholder needs into user stories with clear acceptance criteria that align with the Definition of Ready (DoR) Lead refinement ceremonies and actively contribute to other agile ceremonies, working closely with Product Owners and developers, ensuring stories are ready-for-development Promote iterative delivery, MVP thinking, and continuous feedback loops to ensure value-driven development Collaborate effectively with both the technology and product teams, demonstrating strong teamwork and communication Requirements: We are looking for a Business Analyst who brings the following strengths to a backend focused team: Clear grasp of systems integration patterns, message flows, and dependency management across distributed architectures Awareness of how backend changes support or affect front-end behavior, omnichannel features, and user experience Strong understanding of APIs, including consumption patterns, endpoint structure, and lifecycle management Hands-on experience reviewing and working with RESTful OpenAPI Specification (Swagger) and GraphQL Specification Familiarity with RFC 7807 (error-handling requirements), JSON Patch, OAuth, and general API security best practices (e.g., OWASP Top 10) Ability to define data mappings and transformations across systems, including understanding of omnichannel data strategies Competent in analyzing JSON payloads, testing endpoints using tools like Postman or Swagger UI, and validating expected vs. actual responses Strong problem-solving mindset and ability to simplify complex technical concepts for non-technical stakeholders. Commercially aware and customer-focused, always seeking value in backend improvements. Skilled in facilitating requirements workshops, conducting gap analysis, process mapping, and capturing functional specifications. Experience creating user stories and acceptance criteria in an agile environment. Familiarity with modeling techniques such as sequence diagrams, BPMN, or UML Basic knowledge of JIRA and Confluence for backlog and documentation management. What`s in it for you? Regular salary reviews based on performance Corporate events: webinars, offline parties, and meetups Internal Mobility Program Tailored education path (including full access to Udemy, certifications, etc.) 25 paid days off: 20 business days of vacation per calendar year + 5 undocumented sick leave days Additional health insurance 100% company-covered Multisport card, with discounts available for family members About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. Since expanding to Bulgaria in 2022, we’ve been building a fast-growing team that thrives on learning, collaboration, and innovation. Join us on this exciting journey and help shape the future of our delivery center. Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum. #LI-MH1 Apply To This Job