Temenos Senior Developer

About Unlimit
Unlimit is the global fintech powerhouse behind the world's largest proprietary payments infrastructure.

Founded in 2009, Unlimit operates across 17 global offices with 700+ experts, seamlessly integrating 1,000+ payment methods into a single platform. From London to São Paulo, we empower businesses to scale across borders with a unified suite of financial tools — including payment processing, alternative payment methods, multicurrency business accounts, card issuing, banking-as-a-service, and crypto on- and off-ramps.

Our mission is to break down financial barriers and enable seamless money movement across borders. We give forward-thinking businesses the tools to accept, send, and manage payments effortlessly, wherever they operate.

We are seeking a highly skilled Temenos Senior Developer with strong integration experience to join our core banking transformation team. The ideal candidate will have deep expertise in Temenos Transact (T24), hands-on development capabilities, and a proven track record of integrating Temenos with third-party systems using modern frameworks and APIs. Proficiency in Java and Python is required.

Key Responsibilities:

• Development & Customization:
• Design, develop, and implement customizations and enhancements in Temenos Transact (T24) using TAFJ, Design Studio Extensibility Framework, API workbench
• Build and maintain core banking modules including Arrangement Architecture (AA) etc
• Develop and optimize T24 online and COB routines and Services Framework components
• Integration & Interfacing
• Lead integration efforts using Temenos Integration Framework, IRIS (Interaction Framework), MQ, and REST/SOAP APIs
• Implement event-driven and streaming integrations using Event Streaming and Adapter Frameworks
• Collaborate with infrastructure and middleware teams to ensure seamless data exchange and system interoperability
• Testing & Support
• Conduct unit, integration, and user acceptance testing (UAT) for all developed components
• Provide L3 support for production issues, performance tuning, and defect resolution
• Maintain comprehensive documentation including technical specifications, installation guides, and test results
• Collaboration & Leadership
• Work closely with Business Analysts, Architects, and Project Managers to translate functional requirements into technical solutions
• Mentor junior developers and contribute to continuous improvement of development practices
• Maintain DevOps pipelines using GIT, Jenkins, and SonarQube

Required Skills & Experience:

• 5+ years of hands-on experience in Temenos Transact (T24) development
• Strong proficiency in TAFJ, JBASE, Java, Python, and SQL
• Experience with Temenos Integration Framework, IRIS, MQ, and API development
• Familiarity with cloud deployment (AWS preferred) and containerization (Docker, OpenShift, Kubernetes)
• Knowledge of logging and monitoring tools such as Grafana, Dynatrace and Splunk
• Exposure to Temenos Extensibility Framework and hybrid integration approaches
• Excellent problem-solving, communication, and stakeholder management skills

Preferred Qualifications:

• Bachelor's or master's degree in computer science, Information Technology, or related field
• Temenos certifications (Transact, Payments, Integration Framework)
• Experience with T24 upgrades, data migration, and performance optimization

Join Unlimit Team now
Unlimit is an equal opportunity employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We welcome applications from all members of society irrespective of age, sex, disability, sexual orientation, race, religion or belief.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.