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Senior Business/System Analyst
Company: N-iX
Location: Ukraine
Department: Mastercard Team
N-iX is looking for Senior System / Business Analyst to join the team
About the Role
A System / Business Analyst that would take full ownership of the feature lifecycle — from discovery and business requirements to API design, technical specifications, and release support. The Analyst will work on high-load customer-facing web and mobile banking solutions serving millions of users.
Key Responsibilities & Requirements (Must-have)
Full-Cycle Delivery & Domain Expertise:
5+ years of commercial experience as a SA/BA/System Architect, working with distributed systems.
Hands-on experience across the entire System DLC: Discovery → Elicitation → Requirements & Design → Dev Support → UAT → Post-release.
Proven experience with high-load customer-facing mobile/web applications (100k+ DAU).
Requirements Engineering & Stakeholder Management:
End-to-end management of BRD, FRD, and SRS: elicitation, prioritization, conflict resolution, and sign-off.
Strong balance of FR and NFR elaboration.
Effective collaboration across diverse stakeholder groups (Business, Product, Architecture, Security, Compliance).
System Analysis & Solution Design:
API-First / Contract-First design for REST APIs (request/response schemas, integration patterns, component interaction, and impact analysis).
Modeling and diagramming: UML Sequence Diagrams and BPMN.
Detailed front-end logic specification: UI states, data mapping, validation rules, error handling, deeplinks, and permissions.
Partnering with UI/UX designers from early prototypes to "ready for dev" status.
Validating design mockups against business logic, edge cases, and technical constraints.
Feature acceptance testing: back-end testing via Postman and mobile testing on internal builds.
Nice-to-Have
Experience in FinTech / Banking.
Practical experience analyzing server logs (Kibana, Grafana, or similar).
Familiarity with design systems and reusable UI component libraries.
Experience defining accessibility standards (WCAG 2.1 AA).
We offer*:
Flexible working format - remote, office-based or flexible
A competitive salary and good compensation package
Personalized career growth
Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
Active tech communities with regular knowledge sharing
Education reimbursement
Memorable anniversary presents
Corporate events and team buildings
Other location-specific benefits
*not applicable for freelancers