Senior Architect, Solution Architecture (Enterprise Banking)

Role: Senior Architect – Data Products & Domain APIs

Domain: Enterprise Financial Services / Banking

Role Overview

We are looking for an experienced Senior Architect to help shape the future of financial technology. You will lead the architecture of domain-oriented data products and APIs that enable critical business capabilities across a large-scale financial organization.

Working at the intersection of business, technology, and data, you will partner with architects, engineers, product managers, and senior stakeholders to create scalable, secure, and resilient solutions. You will provide end-to-end architectural leadership across multiple delivery streams, while enabling teams to make effective decisions within clear architectural guardrails.

Your Impact

You will establish reusable data and API capabilities that accelerate delivery, improve interoperability, and create value for customers and business partners.

What You'll Be Doing

• Lead architecture across domains
• Define and evolve the architecture vision, principles, and roadmap for Data Products and Domain APIs.
• Align business capabilities, data assets, APIs, and technology platforms across multiple delivery streams.
• Oversee the end-to-end solution architecture and coordinate the work of software architects embedded in individual delivery streams.
• Identify interfaces, data flows, and cross-domain dependencies, and guide teams in evaluating solution alternatives.
• Drive data product excellence
• Establish patterns and standards for domain-owned data products that are discoverable, trustworthy, reusable, and governed.
• Clarify data ownership, product boundaries, quality expectations, metadata, lineage, and lifecycle responsibilities.
• Partner with business and technology stakeholders to maximize the value and safe use of data across the organization.
• Promote modern data architecture practices, including data product thinking and domain ownership (Data Mesh principles).
• Shape the domain API landscape
• Define API-first architecture principles, design standards, governance, and lifecycle management practices.
• Guide the definition of domain boundaries, API contracts, versioning, security, and reusable integration patterns.
• Ensure APIs are secure, scalable, resilient, observable, and easy for consumers to use.
• Support event-driven and service-oriented integration approaches where they provide clear business and technology value.
• Build resilient, delivery-ready solutions
• Define solution-level functional requirements and non-functional requirements (NFRs) for availability, performance, security, scalability, resilience, and operability.
• Define subsystems and interfaces, allocate responsibilities, and clarify interactions with the wider solution context.
• Build and maintain the architectural runway needed for sustainable delivery and future change.
• Enable Continuous Delivery and DevOps through pragmatic design guidelines, automation, and investment advocacy.
• Collaborate and influence
• Work closely with Product and Solution Management, business stakeholders, engineering teams, Enterprise Architects, and external suppliers.
• Contribute architectural expertise to planning, high-level design, solution demonstrations, and continuous exploration.
• Help shape and realize architectural enablers, including appropriate capacity allocation for enablement work.
• Communicate complex architecture decisions clearly to technical and non-technical audiences.
• Mentor architects and engineering teams, foster collaboration, and enable decentralized decision-making.

Requirements

• Senior Architectural Leadership: Significant experience in Solution Architecture, Domain Architecture, Enterprise Architecture, or a comparable senior architecture role.
• Enterprise Delivery: Proven track record of designing and delivering enterprise-scale data, API, and integration solutions.
• Cross-Team Governance: Experience leading architecture across multiple teams, products, or technology domains.
• Domain Expertise: Strong understanding of financial/banking technology and core business processes. Experience with Core Banking / Core Financial platforms is highly desirable.
• Regulated Environments: Experience working in complex, highly regulated environments with demanding security, resilience, and data governance requirements.

Project info

Start date: November 2026

End date: 31.1.2027 (extension possible)

Allocation: 100 %

Location: Helsinki, on-site 2-3 days a week

Could this be you? Contact via slack katja_witted or email katja.rannisto@witted.com