Fullstack Engineer - iOS & .NET API - Client and AI Analytics(EN)

Van Lanschot Kempen; Amsterdam; Hybrid; EUR 56,000 - 69,000; Full time

Benefits offered by this job

Hybrid working

Employee share plan

Hybrid office Amsterdam two days aweek

Pension scheme

Home/remote work allowance

Language courses (Dutch/English)

6 weeks leave and 27 days? not exact

Job summary

Van Lanschot Kempen in Amsterdam is seeking a Fullstack Engineer - iOS & .NET API to bridge native mobile development and backend services. You will contribute to the AI-powered ClientCenter platform used by private bankers and relationship managers, building the native iOS app backed by a C#/.NET API layer.

The role emphasizes hands-on development, design patterns, CI/CD, and working in a hybrid environment with flexible benefits and the chance to influence enterprise-scale solutions.

Qualifications

• 3+ years of native iOS development experience (Swift/SwiftUI).
• 3+ years of REST API development in C# / .NET.
• Experience consuming REST APIs in a mobile context.
• Solid understanding of CI/CD, design patterns and architecture.

Responsibilities

• Build the corporate mobile app and the backend powering it.
• Collaborate with backend/platform engineers to ensure robust APIs.
• Deliver AI-powered ClientCenter functionality integrated with iOS.

Skills

iOS development

REST APIs

C# / .NET

CI/CD

Azure

Design patterns

MVVM

Clean Architecture

API design

Tools

Azure DevOps

Azure Pipelines

Job description

Create your own future

Are you a great engineer ready to take on a new challenge, bridging native mobile development and backend API development? We are looking to extend our team with a passionate fullstack engineer who is strong in either native iOS development or backend REST API development in C#/.NET — and has working knowledge of the other side. You understand the full landscape needed to run enterprise apps reliably, including APIs, authentication, and CI/CD.

The Client AI & Analytics team is building AI-powered tools inside ClientCenter, our custom platform used by private bankers, relationship managers, and other commercial staff to manage client relationships and deliver highly personalized client service at scale. We build practical, impactful AI tools that fit naturally into how bankers and advisors actually work, always with humans firmly in the loop.

Over the past period, the team has added a growing set of AI-powered capabilities to the platform, including meeting preparation, live transcription, automated documentation, data quality improvements, and compliance support. We are now taking the next step: developing a native iOS app, backed by our C#/.NET API layer, that makes these intelligent capabilities available anytime, anywhere, on secure managed devices within our corporate environment.

As a fullstack engineer, you will help build the corporate mobile app and the backend that powers it, enabling our commercial colleagues to work faster, smarter, and more effectively, with AI-assisted ClientCenter functionality right at their fingertips.

Your talents

"Passionate about mobile and backend technology, AI, growth mindset, collaborative and hands-on" — this is how we can best describe you in this role. You use these talents to continuously improve the digital experience of our commercial colleagues.

You have strong experience in at least one of the following, and working knowledge of the other:

iOS development

• 3+ years of experience developing native iOS apps, preferable with Swift and SwiftUI
• Strong understanding of REST architectural principles (resources, statelessness, idempotency, proper use of HTTP methods/status codes) and experience applying this when consuming APIs in a mobile context
• NET API development
• 3+ years of experience developing REST APIs in C# / .NET
• Track record of designing robust, maintainable, and scalable APIs — sound architectural choices that hold up as the platform and usage grow

Across both profiles, you also have:

• Familiarity with design patterns, testing (unit/integration tests), continuous integration and deployment
• Solid understanding of Clean Architecture and MVVM principles, and experience with dependency injection
• Knowledge of and hands‑on experience with Azure is a strong plus

What makes you stand out:

• Experience with setting up and maintaining CI/CD pipelines in Azure (for example Azure DevOps, Azure Pipelines) for mobile apps.
• Experience developing and deploying corporate mobile apps in managed environments, such as Mobile Device Management (MDM) solutions like Microsoft Intune (e.g. app protection policies, app configuration, distribution to managed devices).
• Affinity with broader software engineering topics (logging, monitoring, observability, security‑by‑design) and collaborating with backend / platform engineers.

Move ahead at Van Lanschot Kempen

Investing in a more future‑oriented, sustainable, and data‑driven way with various clients. Both nationally and internationally. With nearly 300 years of experience, we make this ambition a reality at Van Lanschot Kempen. We do this with more than 1,800 colleagues in various fields of expertise.

The Digital Innovation & Analytics department is a start‑up like environment within Van Lanschot Kempen; a union of two specialised financial boutiques and the oldest independent financial institution in the Netherlands. This means a work environment which offers both; the cool and ambitious character of a start‑up combined with the solid benefits of a large company.

An organisation's degree of innovation and agility also depends on the diversity of its workforce. Our differences make us stronger together. We promote an inclusive work environment where all colleagues feel at home. With us, you can be yourself. And we are proud of that.

Curious about the stories of colleagues and how they experience working at Van Lanschot Kempen? Go to Podcasts and find out more

That's what we do! The fact is, if you add value, you can expect the same from us in return. A good work‑life balance with our 'hybrid way of working' is a good example of this. As a Fullstack Engineer - iOS & .NET API, you will also be given:

• a gross monthly salary between €5.000 and 6.200 commensurate with your knowledge and experience.
• additional flexible budget of 19.47% of your gross salary (containing a 13th month, 8% holiday allowance & 7 extra legal leave days) You can utilize this by buying a bike, monthly gym membership, but also to save up for a sabbatical! It’s also possible to get the full budget paid out at any moment in the year.
• an employee share plan, where Van Lanschot Kempen doubles your investment (of max. €3.500 a year) in Van Lanschot Kempen shares.
• 27 leave days of which 7 are part of the flexible budget.
• working from home equipment such as electric standing desk, chair, a number of screens of your choice can be ordered and sent to your home.
• your commute to work is compensated, including green options of walking and biking to work!
• working from home allowance.
• the option of exchanging national public holidays for religious holidays.
• a free Van Lanschot Kempen bank account and other employee conditions, such as a discount on an Evi (investment) account.
• a market competitive pension scheme. The exact contribution is based on your salary and age, generally, most people can expect around 20% contribution, which 4% is employee contribution.
• a number of communities and events throughout the year, communities such as Young Professionals, Women, International, Pride, Sustainability, Sports clubs etc.
• weekly drinks at our bar in the office.
• Dutch and English language courses.
• Hybrid working with flexibility, with the team typically in the Amsterdam office two days a week, Monday and Friday

And we have many other employment benefits ready for you. Discover all the benefits of working at Van Lanschot Kempen.

If you have any questions, feel free to contact Anna Skorobohata at [e-mail]