Senior IT Developer

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For our client in the banking industry, were looking for an IT Developer to work on pricing engine modernization and cash flow processing solutions.

Key responsibilities:
- Design, build, and maintain components of the price engine, with a focus on migrating legacy application logic to modern, maintainable systems
- Design and implement cash flow and cash instruction generation logic
- Analyze existing legacy processes to identify migration paths and refactoring opportunities
- Apply AI-assisted tools (e.g. code assistants, LLM-based analysis) to accelerate development, migration, and testing
- Collaborate with business/product owners, QA, and infrastructure teams to ensure accurate, compliant pricing and settlement logic
- Write clear technical documentation
- Support testing, validation, and rollout of migrated components with minimal disruption to production

Required Skills:
- Experience implementing cash booking flows within a financial institution.
- Experience constructing complete debit and credit booking instructions from a business event.
- Experience routing booking instructions to downstream booking and/or ledger systems.

Preferred Skills:
- Experience in banking/financial services
- Familiarity with pricing engines or trade/settlement systems
- Experience with mainframe or legacy platform migrations
- Experience building or customizing AI-assisted workflows/tooling for engineering teams

Answer these questions separately in a few sentences and attach them to your application! (Mandatory!)
- Have you implemented cash booking flows that generate debit and credit booking instructions from business events within a financial institution?
- Have you integrated cash booking, settlement, or accounting instructions with downstream ledger or core banking systems?
- Have you been involved in migrating or modernizing legacy applications, such as mainframe-based or monolithic systems?
- Have you used AI-assisted development tools to support software development, migration, testing, or documentation activities?

Please apply as soon as possible with your updated CV in English, that clearly demonstrates your skills and experience relevant to this role

Contract start: 16.11 2026
Contract end: 15.2 2027, possible extension
Location: Helsinki (min. 3 days a week at the office)
Allocation: 100 %

We offer you: We offer a versatile assignment where every day is different and interesting. We also offer a very competitive salary and good employee benefits.

Are you interested in becoming a part of our dynamic team? The position will be filled as soon as a suitable person is found, so please be quick and submit your application!

Please include your salary expectation in your application. For more information, contact Kimmo Kärsämä, tel. 050 412 7500, kimmo.karsama@lokki.fi

Explore Lokki, through our blog and website: https://www.lokki.fi/ .

Lokki Henkilöstöpalvelut Oy (Finnish for Seagull Recruitment Services) has been active in providing recruitment services since 2005 and we belong to The Private Employment Agencies Association HPL. Our vision is to provide the best customer experience with our reliable, humane and effortless service around Finland. Our most important asset is a person who, as we know, thrives in a reliable and supportive atmosphere. At Loki you will be supported by your own human resources consultant throughout your employment relationship. At Lokki, we believe in a partnership achieved as a result of flexible service. Explore us and our vacancies: https://www.lokki.fi/.

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