Senior Specialist - Design and Development
Role overview
We are hiring a senior specialist – payments engineering to lead the design, development, and continuous enhancement of large-scale centralised payment platforms. This role focuses on building high-performance, secure, and scalable payment systems, leveraging microservices architecture, ISO 20022 messaging, and DevSecOps practices. You will play a key role in shaping payment workflows, system integrations, and real-time message orchestration, while ensuring compliance with regulatory and banking standards.
Key responsibilities
- Payment system design & development
Design, develop, and implement end-to-end payment systems aligned with ISO 20022 messaging standards.
Build and maintain microservices-based payment architectures for high scalability and fault tolerance.
Analyse functional and technical requirements to deliver secure, high-performance solutions.
Develop API-first services ensuring interoperability across banking systems.
Orchestrate payment message flows, validation, transformation, and routing. - System integration & interoperability
Integrate payment platforms with internal banking systems and external financial networks.
Ensure data consistency, message integrity, and seamless transaction processing.
Enable interoperability across RTGS, direct debit, and clearing systems. - Enhancements & continuous improvement
Identify and implement enhancements driven by business and regulatory requirements.
Improve system performance, scalability, and operational efficiency.
Drive modernisation initiatives across legacy payment components. - Production support & incident management
Provide L2/L3 support for critical payment systems including troubleshooting and root cause analysis.
Handle production incidents, system defects, and data discrepancies.
Participate in incident triage, prioritisation, and resolution.
Maintain detailed logs, reports, and resolution documentation. - DevSecOps & engineering excellence
Contribute to CI/CD pipelines and automated deployment processes.
Ensure adherence to secure coding practices and DevSecOps principles.
Promote test-driven development (TDD), automation, and code quality standards.
Work within agile delivery frameworks (Scrum/Kanban). - Stakeholder collaboration
Act as a bridge between business stakeholders, product teams, and engineering teams.
Translate business requirements into technical solutions.
Provide regular updates and ensure alignment with project objectives. - Documentation & knowledge sharing
Maintain technical documentation, system architecture, and process flows.
Create test cases and user manuals.
Mentor junior engineers and support team capability building.
Required experience
Minimum 5+ years of experience in backend development and system integration.
Strong experience working on enterprise-level or banking systems.
Proven track record in system enhancements and production support.
Technical skills
Backend & development
Strong expertise in Java (Spring Boot) (preferred) or Python / Node.js / Go.
Experience building RESTful APIs and distributed systems.
Architecture & platforms
Deep understanding of microservices architecture, API-first design, and distributed systems patterns (circuit breaker, service discovery).
Experience with Docker & Kubernetes and cloud platforms (AWS / Azure / GCP).
Databases
Strong experience with relational databases: Oracle, PostgreSQL, MySQL.
NoSQL: MongoDB, Redis.
DevOps & tools
CI/CD tools: Jenkins, GitLab CI, GitHub Actions.
Version control: Bitbucket / Git.
Agile tools: JIRA.
Payments domain expertise (critical)
Hands-on experience with ISO 20022 messaging.
Payment systems such as RTGS, direct debit, clearing.
Understanding of cross-border payments and settlement mechanisms.
Payment lifecycle and transaction processing.
Security & compliance
Knowledge of API security (OAuth, JWT, rate limiting).
Cloud and infrastructure security.
Secure SDLC practices (SSDLC).
Qualifications
Bachelor’s or master’s degree in computer science or related field.
Certifications in Java, Agile, or Cloud are a plus.
What makes this role stand out
- Work on national-level payment infrastructure.
- Exposure to high-volume transaction systems.
- Opportunity to influence architecture decisions.
- Strong alignment with modern engineering practices.