Talan
Senior Calypso Developer
Katowice, Silesian Voivodeship, Poland
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hirly's read of this role
- Role family
- Engineering
- Seniority
- Senior
- Country
- PL
- Work mode
- On-site / unstated
- First seen by hirly
- 2 Oct 2026
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the posting
 
Location: Wrocław, Poland (On-site)
Relocation: Candidates located elsewhere in Poland are welcome to apply and should be open to relocating to Wrocław.
About the Opportunity
We are looking for a Senior Calypso Developer to join a newly formed technology team supporting the Capital Markets operations of a leading European banking organization.
This is a unique opportunity to help build a team from the ground up and play a key role in the evolution, support, customization, and enhancement of a large-scale Calypso environment used across Front Office, Middle Office, Risk, and Back Office functions.
The role also offers long-term project stability, exposure to complex financial products, and the possibility of future internalization with the client after a certain period of collaboration .
Responsibilities
- Design, develop, and maintain Calypso customizations and integrations.
- Support production and business-critical Capital Markets activities.
- Collaborate with business stakeholders, analysts, support teams, and architects.
- Develop Java-based solutions within the Calypso ecosystem.
- Optimize performance, troubleshoot incidents, and implement enhancements.
- Mentor junior team members and contribute to technical best practices.
- Participate in system upgrades and strategic platform initiatives.
Requirements
- 6+ years of software development experience.
- Strong hands-on experience with Calypso.
- Solid Java development background.
- Experience with Oracle/SQL databases.
- Understanding of Capital Markets and financial products.
- Experience with integrations, APIs, messaging systems, or event-driven architectures.
- Ability to work directly with business and technical stakeholders.
- Fluent English: C1
Nice to Have
- Experience in investment banking environments.
- Calypso upgrade or migration projects.
- Linux/Unix administration knowledge.
- Exposure to DevOps and CI/CD practices.
What do we offer you?
- Onsite set up in Wroclaw, Poland
- Training and career development 
- Benefits and perks such as private medical insurance, lunch pass card, MultiSport Plus card
- Possibility to be part of a multicultural team and work on international projects 
If you are passionate about data, development & tech, we want to meet you!
Talan Spain’s commitment to non-discrimination based on gender, race, ideology, or any other reason, in accordance with the company’s "Equality Plan" and the current regulations on gender equality between women and men (Royal Decree-Law 6/2019).
Talan – Positive Innovation
Talan is an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultants in 21 countries and a turnover of €850M, we are committed to delivering impactful, future-ready solutions.
Talan at a Glance
Headquartered in Paris and operating globally, Talan combines technology, innovation, and empowerment to deliver measurable results for our clients. Over the past 22 years, we’ve built a strong presence in the IT and consulting landscape, and we’re on track to reach €1 billion in revenue this year.
Our Core Areas of Expertise
- Data & Technologies:  We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI.
- Cloud & Application Services:  We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.
- Management & Innovation Consulting:  We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies.
We work with major global clients across diverse sectors, including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications.
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