Senior Software Engineer - Finance Core Accounting
Tallinn, EstoniaFull-timePosted Jul 8, 2026
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Senior Software Engineer - Finance Core AccountingFull-time Compensation: EUR 5750 - EUR 7083.33 - monthlyCompany DescriptionWise is one of the fastest growing companies in Europe and we’re on a mission: to make money without borders the new normal. We’ve got over 16 million customers across the globe and we’re growing. Fast.Current banking systems don't let us send, spend or receive money across borders easily. Or quickly. Or cheaply. So, we’re building a new one.And, we need a talented Software Engineer (IC3) to join our mission.Job DescriptionThe team you’ll be working with: Core Accounting in FinanceFinance drives financial accounting, business monitoring and representing Wise financials to board, investors, regulators and auditors. Their focus is on running financial processes in an efficient, scalable and controlled manner and ensuring timely and accurate financial reporting. Finance Services at Wise record over 1 billion ledger entries per month, averaging at 400,000 events per minute. Teams in Finance are responsible for the following:Core Accounting: Providing ledger as a service and responsible for the Third Party integrations along with spitting the financial aggregations out. Finance Implementation: Journaling of financial transactions of new customer products/featuresIntegrations Experience: Improving the experience and process of onboarding new product financials. Data & Assurance: Managing the governance and controls over all financial data
About the RoleAs an IC3 Software Engineer to join our Core Accounting team you would be responsible for shaping and delivering some of the key initiatives and functionalities in the team like:Design, shape, develop, and test applications using Java, Spring Boot, PostgreSQL, Kafka and React in a micro services environmentParticipate in the development of our ledger as a service, aggregation pipeline for financials, and 3rd party integrationsLearn and take ownership of the 3rd party systems we in finance have and how we integrate with themWork cross-functionally in squads who are vital to driving the mission of making ledger and financials more timely, accurate and controlled. Create clear and helpful interfaces, whilst maintaining consistency, maintainability and performanceCollaborate with cross-functional teams to identify and prioritize product requirementsWrite clean, efficient, and well-documented code that adheres to our coding standardsParticipate in code reviews and contribute to the improvement of our codebaseParticipate in team ceremonies and planning cyclesQualificationsTechnical Leadership & DeliveryOwn large-scale projects: Lead the technical roadmap and deliverables for significant, impactful initiatives (8+ engineering weeks)Design scalable systems: Build backend services and APIs with a long-term approach, using design patterns that enable easy iteration and scalingFull-stack contribution: Work across the entire stack with particular strength in backend technologies, ensuring seamless integration between frontend and backend systemsMaintain system reliability: Take accountability for the availability, reliability, and security of the systems you buildAPI-first design: Ensure all products are designed with strong, well-documented APIs that partners and internal teams can easily consume
Product & Strategic ImpactDrive technical roadmap: Own and contribute to your team's technical roadmap alongside product partnersProduct thinking: Provide strong feedback on product roadmaps, always able to articulate why something is being built, what customer problem it solves, and expected impactTechnical debt management: Proactively address technical debt and plan work to keep it within risk appetiteCross-team collaboration: Promote collaboration across teams to minimize duplicate work and align everyone toward common goals
Mentorship & Team ExcellenceMentor engineers: Coach and assist other...