We're looking for a skilled Core Ledger Specialist to
join our platform team. Our team does not develop the core ledger
systems ourselves — they are built and delivered by external
suppliers. Your role is to understand the business and financial
logic deeply, define and write clear requirements, verify and
regression test what our suppliers deliver, and support internal
configuration of the platform. A significant part of this role is
providing hands-on internal support to colleagues across the
business who rely on the core ledger day to day — this is something
all specialists in the team spend a lot of time on. This role calls
for strong analytical and technical skills combined with a good
understanding of how financial ledgers work. You will join a small,
close-knit team: today the Core Ledger team consists of a Head of
Core Ledger IT, a Product Manager, and two Core Ledger Specialists
(one of whom also carries delivery management responsibilities).
This is a great opportunity to make a direct impact early on and
help shape the team as it grows. Key Responsibilities Define and
document clear, detailed requirements for transaction processing,
balance management, and posting logic, to be delivered by external
suppliers Verify and regression test supplier deliveries to ensure
data integrity, accuracy, and consistency across all ledger
operations Collaborate with the Head of Core Ledger IT and
suppliers on solution design and technical decisions Investigate
and resolve complex ledger-related incidents and data
discrepancies,



working with suppliers when needed Maintain clear
documentation, including requirements, data flows, test results,
and runbooks Support internal configuration of the core ledger
platform Provide hands-on internal support to other teams (finance,
customer service, operations, and others) on day-to-day ledger
questions and issues — this is a significant and ongoing part of
the role Support integration of new products and financial
instruments into the ledger framework, working with suppliers and
Product Management Work closely with QA and the Delivery Manager to
ensure supplier deliveries are well tested before approval
Qualifications and Experience Desired Skills 4+ years of experience
working with financial or transactional systems, in a requirements,
analysis, or configuration role Strong understanding of
bookkeeping, financial transaction processing, or core banking
systems Experience writing clear, detailed requirements and
acceptance chriteria for systems delivered by external suppliers
Familiarity with relational databases and ability to query and
analyse data (SQL) Solid understanding of how to verify and test




complex system deliveries Nice to Have Experience working in a
regulated financial environment (banking, payments, BNPL) Knowledge
of accounting standards and financial reporting requirements
Experience working with externally delivered or outsourced systems
Familiarity with testing frameworks and structured test
methodologies Behaviours Precision-minded — takes accuracy and
correctness seriously, especially in financial contexts
Service-minded and approachable — enjoys helping colleagues
understand and resolve ledger-related questions Curious and
continuous learner who stays current with industry practices
Collaborative team member who shares knowledge and supports
colleagues Takes ownership of problems and follows through to
resolution Constructive and clear in requirements discussions and
supplier reviews Education BSc or MSc in Computer Science, Software
Engineering, or equivalent practical experience. Languages Fluent
English is required for this role. Spanish and Swedish language is
a plus. We Offer A key role in building and shaping a modern,
cloud-native core ledger platform A collaborative, cross-functional
team environment with short decision paths Competitive salary and
benefits package Versátil working arrangements with hybrid options
Opportunities for professional development and continuous learning
A chance to make a real impact in the fintech space across the
Nordic market Modern office in central Málaga with a strong team
culture

📌 Core Ledger Specialist (Andalucía)
🏢 Avarda Group
📍 Andalucía