Are you passionate about Core Banking technology and solution architecture? Do you enjoy designing scalable banking solutions while remaining hands-on in development? As a Transact Solution Architect / Senior Transact Developer at Garanti BBVA International (GBI), you will play a key role in shaping the future of our Temenos Transact platform.
In this position, you will combine technical expertise with architectural leadership, translating complex business requirements into innovative, secure, and scalable solutions. Working closely with Business Owners, Technology teams, Operations, implementation partners, and Temenos specialists, you will help modernize our Core Banking landscape and deliver solutions that directly support the bank's strategic ambitions.
This is an opportunity to work on mission-critical banking systems, influence architectural decisions, and become part of an international team that values innovation, collaboration, and continuous improvement.
As a Transact Solution Architect / Senior Transact Developer, you are responsible for designing, developing, and continuously improving our Temenos Transact (T24) platform. You combine deep technical expertise with strong analytical and stakeholder management skills to deliver reliable, secure, and future-proof banking solutions.
You will take ownership of the full solution lifecycle—from business analysis and architecture through development, testing, deployment, and production support—while ensuring alignment with enterprise architecture, regulatory requirements, and industry best practices.
Key Responsibilities:
Design end-to-end solution architectures for Temenos Transact (T24) and surrounding banking applications, ensuring scalability, resilience, security, and maintainability.
Translate business and regulatory requirements into robust technical solutions that support the bank's strategic objectives.
Develop, maintain, and enhance local Temenos Transact (T24) developments while continuously improving system performance and operational efficiency.
Collaborate closely with Business Owners, Product Owners, Operations teams, Technology colleagues, implementation partners, and Temenos specialists throughout the entire project lifecycle.
Review and validate technical solution designs delivered by implementation partners, ensuring compliance with enterprise architecture standards and development best practices.
Support Core Banking transformation initiatives, system upgrades, new product implementations, and modernization programmes.
Design and implement integrations between Temenos Transact and internal or third-party applications using modern integration principles and architecture patterns.
Provide expert support for production incidents by performing root cause analysis, troubleshooting complex issues, and implementing sustainable long-term solutions.
Coordinate application releases, deployments, functional testing, smoke testing, and User Acceptance Testing (UAT) while ensuring high-quality software delivery.
Maintain and continuously improve release management, application lifecycle management, and change management processes.
Identify technical, operational, and security risks, proactively proposing solutions that ensure compliance with banking regulations and information security standards.
Monitor application stability, performance, and availability while driving continuous improvements to platform reliability.
Share knowledge, mentor colleagues, and contribute to building technical expertise within the Core Banking team through coaching, documentation, and training sessions.
Work with tools such as Jira, Confluence, Topdesk, and modern development practices to ensure effective collaboration and transparent delivery.
Build strong relationships with business stakeholders by providing technical guidance and helping them maximize the capabilities of the Temenos Transact platform.
Continuously identify opportunities to improve system architecture, development standards, automation, and engineering practices.
Contribute to a collaborative, innovative, and customer-focused working environment where quality, ownership, and continuous improvement are at the heart of everything we do.
5+ years of experience developing and implementing Temenos Transact (T24) solutions within a banking environment.
Extensive knowledge of Temenos Transact (T24) architecture, modules, development tools, and customization frameworks.
Strong hands-on development experience with Java, InfoBasic, Python, Shell scripting, SQL, REST APIs, JSON, and XML.
Solid understanding of Temenos Extensibility Framework (TEF) and modern integration technologies.
Experience designing enterprise-scale solution architectures, APIs, integration patterns, and event-driven architectures.
Strong knowledge of Core Banking systems, banking products, and financial services.
Experience supporting production environments, troubleshooting complex incidents, and performing root cause analysis.
Excellent knowledge of Unix/Linux and Windows operating systems, including runtime environments such as TAFC, TAFJ, jBase, SQL Server, and PostgreSQL.
Experience with OpenShift or other container platforms is considered a strong advantage.
Strong understanding of software development lifecycle (SDLC), DevOps principles, release management, testing methodologies, and change management.
Experience working in Agile environments, preferably using Scrum.
Knowledge of Jira, Confluence, Topdesk, and modern collaboration tools.
Experience working with implementation partners, third-party vendors, and cross-functional delivery teams.
Strong analytical and problem-solving skills with the ability to translate complex business requirements into practical technical solutions.
Excellent stakeholder management, communication, and presentation skills, with the ability to explain complex technical concepts to both business and technical audiences.
Ability to work independently while managing multiple priorities in a dynamic, fast-paced environment.
Excellent command of the English language, both written and spoken.
You are passionate about technology, architecture, and solving complex business challenges. You combine technical excellence with a pragmatic mindset and enjoy designing innovative solutions that create real business value.
You are naturally curious and continuously seek opportunities to learn, improve, and stay up to date with emerging technologies, industry trends, and the evolving Temenos ecosystem.
You take ownership of your work and enjoy balancing strategic architecture with hands-on development. Whether designing enterprise solutions, resolving production issues, or mentoring colleagues, you remain focused on delivering high-quality results.
You are analytical, structured, and solution-oriented. You remain calm under pressure, make well-informed decisions, and enjoy tackling complex technical challenges with confidence and creativity.
You are an excellent communicator who builds strong relationships across business and technology teams. You enjoy collaborating with Product Owners, Business Owners, Operations, implementation partners, and external vendors, translating technical complexity into clear and actionable solutions.
You thrive in multicultural, Agile teams where collaboration, continuous improvement, and knowledge sharing are part of everyday work. You actively contribute to a positive team culture by supporting colleagues, sharing expertise, and driving innovation.
Above all, you share our commitment to excellence, integrity, collaboration, and customer focus. You embrace diversity of thought and background and contribute to creating an inclusive environment where everyone can grow, innovate, and succeed together as One Team.
At Garanti BBVA International, you'll have the opportunity to make a meaningful impact while working in a diverse and international environment that values innovation, collaboration, and professional growth. We believe that our people are our greatest asset, and we are committed to supporting their wellbeing, development, and long-term success.
As part of our team, you can expect:
A unique opportunity to work in an international banking environment alongside talented professionals from diverse backgrounds.
30 vacation days to support a healthy cbalance.
A 13th-month salary as part of our attractive compensation package.
8% holiday allowance paid annually.
A company laptop and mobile phone to support flexible and efficient working.
An annual appreciation payment recognising your contribution and commitment.
A competitive defined contribution pension plan to help secure your future.
Access to collective health insurance benefits, including discounts on additional health insurance coverage.
A dedicated learning and development budget, together with unlimited access to Coursera's extensive learning platform, helping you continuously expand your knowledge and skills.
The opportunity to contribute to exciting transformation initiatives while accelerating your professional and personal growth.
Work at Garanti BBVA International
Garanti BBVA International (“GBI”) is a mid-sized European bank established in Amsterdam, the Netherlands since 1990 and serves to corporate and institutional and retail clientele. GBI is a wholly owned subsidiary of Turkiye Garanti Bankasi A.S. (Garanti) and has presence in Germany, Switzerland and Turkey. Our ultimate parent is BBVA. Aa dynamic “global boutique” bank, Garanti BBVA International offers fast, accurate, innovative, tailor-made and country-specific financial solutions in selected business lines though highly skilled and diverse talent management. We embrace creativity, are centered towards teamwork and oriented to create multicultural environment as we believe this to be a crucial element. Our vision is future-oriented and as a one big team GBI strives for corporate excellence and goal achievement. By joining our organization, you will find yourself constantly challenged and must be prone to apply out-of-the box thinking.
Life at Garanti BBVA International
GBI is a place for people who dream big and make their dream their goal. We look for people who will challenge the status quo in order to grow. We stand as one team, one family and together we are empowered to create our unique path, be agile, be curious and innovative. Strong partnerships ensure our success. Strong teams hold our foundation. We believe that diversity drives innovation and fosters personal development. We aim to create a working environment where employees are able to learn through support and coaching while contributing visibly to the success of bank.
Our Core Values
GBI is part of BBVA, an integrated and innovative financial institution that looks to the future, created with the mission of financing people’s dreams. That spirit continues to inspire us today and encourages us to transform people’s lives by helping them make the best decisions to fulfil their dreams. This mission is underpinned by our Purpose: “Support your drive to go further”. We live these values, which make us strong and allow us to achieve our purpose so we can keep creating opportunities.
Customer Comes First
We see our work from the customer's perspective, as we incorporate their point of view in every decision we make and always put their interests first. We meet our customer's needs in an agile way, overcoming any difficulties that arise.
Think Big
We want to amaze our customers with the best solutions to generate unique experiences. To achieve this, we set ambitious and inspirational challenges for ourselves, while questioning everything we do and posing new ways of doing things.
One Team
We are committed both to our individual role and the company's objectives as our own. We work as one team, trust our colleagues and break silos between units and hierarchical barriers.
If you are ready to join our team and contribute to the success of company, we encourage you to apply by submitting your resume and a cover letter.
Online Application: Click on the link below to access our online application portal and submit your application.
We appreciate your interest in our organization and look forward to reviewing your application. Should you have any questions or require further information, please don't hesitate to reach out.
Please note that we do not appreciate any acquisition efforts for this vacancy by recruitment agencies.
