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System Analyst
We are searching for a system analyst for a next-generation global self-custodial crypto wallet with embedded virtual cards, seamless on/off-ramp flows, and a modern user experience. We combine the security of non-custody with the convenience of everyday finance: instant top-ups, multi-chain asset management, virtual card payments, and smooth onboarding.
We are looking for a System Analyst who will work closely with founders to design core flows, document integrations, structure complex requirements, and ensure our product is technically bulletproof.
Responsibilities
System Analysis & Architecture
- Collect, structure, and translate business needs into detailed technical specifications (BRD/FRD).
- Design end-to-end flows: onboarding, KYC, virtual card issuance, top-ups, on-/off-ramping, non-custodial wallet recovery.
- Prepare sequence diagrams, data flow diagrams, BPMN/UML, integration maps, and data models.
- Define and document integration logic between mobile app → backend → external providers.
Payments & Card Features
- Document logic for payment flows: authorization, clearing, refunds, limits, fraud scenarios.
- Describe virtual card flows: provisioning, tokenization, 3DS/SCA, lifecycle management.
- Identify and document fintech edge-cases (declines, partial approvals, disputes, network errors).
API & Provider Integrations
- Work with external partners: issuer, processor, KYC/AML provider, on-ramp, blockchain providers.
- Prepare and maintain API contracts, webhook logic, data validation rules, and mapping tables.
- Ensure idempotency, error handling, retries, and consistency across integrations.
Product Delivery & Documentation
- Write technical documentation that allows engineering to implement features without ambiguity.
- Maintain structured documentation in Notion/Confluence.
- Participate in solution reviews, UAT, and release readiness validation.
- Break down features into well-structured user stories with acceptance criteria.
Cross-Functional Collaboration
- Work daily with Founders (CEO/CPO/CTO), backend, mobile, design, and compliance.
- Support incident investigation and root-cause analysis.
- Represent the technical view in partner meetings and integration workshops.
Requirements
Must-have
- 3+ years as a System Analyst in fintech: banking, payments, PSP, neobanking, or card processing.
- Strong understanding of payment flows: authorization, clearing, SCA/3DS, limits, AML basics.
- Solid experience with REST APIs, webhooks, data mapping, JSON, HTTP.
- Ability to produce high-quality specifications, diagrams, and edge-case coverage.
- Strong understanding of technical concepts: idempotency, retries, service communication patterns.
- Experience with UML/BPMN and diagramming tools (Miro, Draw.io, Visio).
- Russian and English: upper-intermediate or better.
Nice to have
- Knowledge of blockchain fundamentals (EVM/Solana), RPC, wallet mechanics.
- Understanding of MPC, key recovery, seed storage concepts.
- Experience with card issuing (issuer, processor), card lifecycle, tokenization.
- Familiarity with PCI DSS and security standards.
- SQL proficiency for data validation.
Soft Skills
- Highly structured and detail-oriented.
- Ability to simplify complex systems and communicate them clearly.
- Comfortable working in a fast-paced, ambiguous startup environment.
- Proactive, ownership-driven attitude.
- Strong communication skills for cross-team alignment.
Conditions
What we offer: Work on a global product, that will cover 10+ countries from FinTech, blockchain and crypto dimensions. Zero bureaucracy, fast decision cycles, high level of ownership. Modern tech stack, strong partners, global product vision. Competitive compensation (EUR/USD/crypto). Remote-first team.
Published on: 2/24/2026

FJX Group
FJX Group focuses on the consumer and technology sectors in MENA, Europe and CIS, providing B2B solutions as a service to clients and supporting its own portfolio companies within these industries.




