System Analyst/ API Designer

Job Description: API Designer (Banking Domain)Location: Philippines (Full Onsite)Role Type: Full TimeExperience Level: SeniorDepartment: Enterprise Architecture / Digital Channels / Integration ServicesAbout the RoleWe are seeking a highly skilled API Designer to join our enterprise architecture and digital integration team. This role is critical in shaping the bank’s API‑first strategy and enabling seamless connectivity across channels, microservices, legacy systems, and partner ecosystems.You will work closely with product owners, domain architects, backend engineers, and integration specialists to design enterprise‑grade APIs, domain‑aligned service contracts, and modern integration patterns that follow BIAN, cloud‑native, and financial‑industry standards.This position is ideal for professionals with strong experience in financial systems, legacy‑to‑modern modernization, domain‑driven API design, and translating business requirements into high‑quality API specifications.Key ResponsibilitiesAPI Design & GovernanceDesign clear, reusable, and versioned REST APIs for internal services, channels, and external partners.Produce API contracts using OpenAPI/Swagger, including:endpoint definitionsdomain modelssequence diagramsintegration flowsDefine standards for naming, versioning, pagination, error handling, idempotency, and backward compatibility.Ensure all APIs comply with security, governance, and regulatory requirements (e.g., PCI/PII, data masking).Domain & Requirements AnalysisWork with business units and product teams to refine requirements and define domain boundaries.Map capabilities to BIAN service domains and design modular, domain‑aligned APIs.Break business processes into stable domain models and service contracts.Produce functional/technical specifications that guide development teams.Integration & System AnalysisDesign APIs that interface with:Core banking systemsLegacy systems (SOAP/REST/JDBC, mainframe gateways)Middleware and API GatewaysEvent-driven architectures (Kafka/SQS/EventBridge)Support modernization using patterns such as:Anti‑Corruption Layer (ACL)Strangler FigDomain decompositionService migrationProvide guidance on:sync vs. async designcaching strategiespayload modelingerror/compensation flowsDocumentation & CollaborationCreate high‑quality technical design docs, API catalogs, and sequence/flow diagrams.Collaborate with QA, DevOps, SRE, and development teams to ensure API consistency and readiness.Participate in architecture review boards, sprint grooming, and solution design workshops.QualificationsMust Have5+ years experience as API Designer, Business Analyst, Systems Analyst, or Integration Analyst in financial systems.Strong ability to turn business requirements into technical API specifications.Proven experience in:REST API designJSON schema designOpenAPI/SwaggerSystem integration & domain modelingExperience in banking, fintech, payments, or enterprise-scale financial systems.Technical CompetenciesAPI & Integration TechnologiesREST API standards, API modeling, OpenAPI 3.xAPI Gateways such as:Apigee, Kong, WSO2, Mulesoft, or equivalentMessage-driven integration using:Kafka, MSK, RabbitMQ, SQS, or EventBridgeLegacy IntegrationSOAP/WSDL, XML/XSD, JAX‑WSJDBC/database integration with legacy core systemsExperience designing ACL (Anti‑Corruption Layer) patternsArchitecture & PatternsBIAN domains, service landscape mappingMicroservices architecture (Spring Boot preferred)Event-driven patterns:CQRSOutbox patternSaga Pattern (orchestration/choreography)Chained Services & event sourcingSecurity & ComplianceOAuth2, JWT, HMAC signatures, mTLSAPI rate limiting, throttling, quota managementPCI/PII-safe payload design and data maskingToolingPostman / InsomniaSwaggerHub / Stoplight / RedoclyConfluence, Jira, Lucidchart / Draw.ioGit/GitLab for design versioningSoft SkillsExcellent analytical and communication skillsStrong documentation habitsAbility to lead discussions with business, architects, and engineering teamsComfortable working in Agile teams with fast-paced delivery cyclesNice to HaveExperience in:Payments, settlements, lending, core bankingODS caching (Redis/DynamoDB)Event choreography and distributed systemsDesigning APIs for partner onboarding and external ecosystemsCertifications:BIAN PractitionerBusiness AnalysisAPI DesignCloud platforms (AWS, Azure, GCP)Job DescriptionApplication Developers develop, test and integrate applications, frameworks and tools in a controlled environment. With expertise in a specific technology environment, they are responsible for software-specific design and realization, as well as testing, deployment and release management or technical application management of client-specific package based solutions.Job Description - Grade SpecificAble to manage a large team and manage customer escalations. You have a leading role in projects with strong client exposure. You are responsible for technical guidance over the whole project or application lifecycle. Able to participate in bids and proposals. Able to manage the project financials. Able to provide integration solutions. Able to manage multiple products under portfolio. #J-18808-Ljbffr Capgemini