Senior Business Analyst - Core Integrations
Cluj-Napoca, Romania (Remote)
Cluj-Napoca, Romania (Remote)
Founded in 2015, Nexttech has built a solid foundation in delivering comprehensive IT solutions tailored to meet diverse client needs. With expertise spanning five key industry sectors—Banking, Energy, Telecom, Automotive and E-commerce & Logistics—we provide nearshore and onshore services designed to drive efficiency and support strategic growth.
Our team supports every phase of the Software Development Life Cycle (SDLC), from developing detailed roadmaps and resolving complex software challenges to ensuring quick time-to-market and optimized ROI.
• Managed Services: End-to-end support for seamless IT operations.
• Custom Software Development: Tailored solutions to address specific business challenges.
• Team Augmentation: Enhance your in-house capabilities with specialized expertise.
• Nearshoring Services: Collaborative solutions that offer the benefits of proximity and cultural alignment.
• Dedicated Development Teams: Aligned teams committed to your project’s long-term success.
• Quality Assurance & Testing: Ensuring high-quality performance and reliability.
• Consulting and Advisory Services: Expert insights to help navigate complex projects and decisions.
At Nexttech, we take pride in our commitment to client success, fostering trusted partnerships, and delivering solutions that align with each client’s unique goals and vision.
We are looking for a Senior Business Analyst – Integration & APIs to translate complex business needs into clear, testable and implementable requirements for enterprise integration capabilities. This role is ideal for an experienced, technically oriented Business Analyst with strong expertise in APIs, system-to-system communication, data exchange and reusable integration services within complex enterprise environments.
Main tech: #RESTAPIs #OpenAPI #Swagger #GraphQL #SOAP #JSON #XML #Kafka #Postman #Jira #Confluence
• Elicit, challenge, clarify and translate business needs into functional and technical requirements, business rules and acceptance criteria
• Analyze complex business processes and system landscapes and convert them into structured, implementable integration specifications
• Work closely with business stakeholders, product owners, solution architects, developers, QA, security, operations and platform teams throughout the delivery lifecycle
• Identify gaps, assumptions, dependencies and ambiguities and drive clarification before implementation
• Maintain clear traceability between business needs, requirements, technical decisions and delivered capabilities
• Analyze and model system-to-system interactions, dependencies, data exchanges and integration constraints
• Define requirements for synchronous, asynchronous, messaging and event-driven integration scenarios
• Define and review REST APIs, Business APIs, GraphQL operations and SOAP services, including endpoints, operations, payloads, headers, parameters, validations, status codes and error-handling requirements
• Review OpenAPI / Swagger specifications from a business, functional and integration perspective
• Define responsibility boundaries between source systems, integration layers, orchestration components and consuming applications
• Analyze timeout, retry, idempotency, duplicate handling, error propagation and failure-recovery requirements
• Document source-to-target mappings, JSON and XML structures, transformations, mandatory and optional fields, default values and validation rules
• Analyze data ownership, code translations, compatibility requirements and transformation responsibilities across participating systems
• Identify business rules, sequencing, dependencies, decision points, compensation requirements and orchestration responsibilities
• Analyze integrations involving core banking systems, enterprise platforms, customer and account services, transaction-processing systems and downstream applications
• Use SQL and relational-database knowledge for source analysis, data validation, reconciliation and troubleshooting
• Assess the impact of changes to API contracts, data models, processes and systems, including backward compatibility and affected consumers
• Prepare acceptance criteria, test scenarios and negative test cases for API and integration requirements
• Support API, integration, system and UAT validation using Postman, Insomnia, Nightingale or equivalent tools
• Analyze API responses, error payloads, application logs and correlation identifiers to support troubleshooting and defect investigation
• Define and clarify security, auditability, observability, performance, availability, scalability, resilience and operational-support requirements
• Create and maintain system context diagrams, sequence diagrams, process flows and integration diagrams
• Maintain structured and traceable requirements, mappings, assumptions, decisions and acceptance evidence in Jira, Confluence or equivalent tools
• Use enterprise-approved generative AI tools responsibly for requirement refinement, gap identification, scenario generation, impact analysis and documentation improvement
• Minimum 7 years of overall IT and Business Analysis experience
• Minimum 5 years of Business Analysis experience within enterprise applications, banking solutions or complex digital platforms
• Minimum 3 years of hands-on experience in integration analysis, API analysis or technical requirements definition
• Strong experience translating business needs into functional requirements, technical requirements, business rules and acceptance criteria
• Strong understanding of REST APIs, HTTP methods, request and response structures, headers, parameters, status codes, versioning and error contracts
• Ability to define API requirements and review OpenAPI / Swagger specifications from a business and integration perspective
• Strong understanding of system-to-system integration and enterprise communication patterns
• Hands-on experience analyzing synchronous, asynchronous, messaging and event-driven integration scenarios
• Strong working knowledge of JSON and good understanding of XML and SOAP web services
• Working understanding of GraphQL concepts, queries, types and schema-driven data access
• Strong field-level data-mapping skills, including transformations, validation rules, data ownership and backward compatibility
• Hands-on experience with Postman, Insomnia, Nightingale or equivalent API testing and troubleshooting tools
• Working understanding of OAuth 2.0, JWT, mTLS, API keys, authentication and authorization concepts
• Ability to define non-functional requirements related to security, observability, logging, monitoring, performance, availability and resiliency
• Good SQL and relational-database knowledge for data analysis, validation and troubleshooting
• Proficient use of Jira and Confluence or equivalent tools for backlog management, traceability and documentation
• Ability to create system context, sequence, process and integration diagrams using Mermaid, PlantUML, Visio or equivalent tools
• Proven experience collaborating with business, development, architecture and QA teams throughout the delivery lifecycle
• Strong analytical thinking, structured problem-solving, autonomy and ownership
• Ability to communicate effectively with both business stakeholders and highly technical teams
• Experience in banking, financial services or another highly regulated industry
• Experience with core banking integrations, payments, lending, customer, account or enterprise-data domains
• Familiarity with Apache Kafka, enterprise messaging and event-driven integration platforms
• Experience with workflow and orchestration platforms such as Camunda
• Familiarity with API gateways and enterprise integration layers
• Technical awareness of .NET, Java, microservices and containerized application environments
• Familiarity with observability platforms such as Elastic and Grafana
• Experience assessing API changes for backward compatibility, consumer impact and operational risk
• Practical experience with Microsoft Copilot or another enterprise-approved generative AI assistant
• Strong prompting skills for requirement structuring, gap identification, scenario generation and impact analysis
• Understanding of confidentiality, data-classification and safe-use requirements when working with AI tools
At Nexttech, we don’t rely on polished platitudes; instead, we let our team members’ voices speak to the essence of who we are:
• “An organization that always listens to feedback from employees, continuously improving based on input and suggestions.”
• “A culture that encourages work-life balance and independence at work.”
• “A place where genuine communication and respect thrive between all levels of the company.”
• “An organization that’s close to people, where kindness and support are constants.”
• “A culture that makes new members feel welcomed, involved in day-to-day decisions, and valued for their unique skill set from day one.”
• “A team that promotes psychological safety and the confidence to speak your mind without fear.”
We promise an environment where respect, openness, and recognition are at the core of your experience. Here, you’ll find a collaborative and responsible team that values fun, autonomy, and flexibility. You’ll face challenges that allow you to grow, supported every step of the way by peers and leadership alike.
If you possess strong technical expertise, a product mindset, a collaborative spirit, and a proactive attitude, along with resilience, flexibility, and a desire to support your teammates, you’ll fit right in at Nexttech.
Come be part of a place where your effort is valued, your ideas are heard, and your growth is our priority. 🚀
