Product strategy
We sharpen goals, prioritise features and turn ideas into a practical product roadmap.
DiscoveryProduct strategyRoadmapAI readinessProcesses
Services
Zero compromises. Hands-on mindset.
We don't deal in buzzwords – we deliver results. With an interdisciplinary team that tackles challenges head-on – pragmatic, creative, and hands-on.
Capabilities
Strategy, design, and engineering for digital products
Senior leadership across strategy, design, and engineering — all in-house in Hamburg, built for measurable outcomes and durable architecture.
UX/UI & design systems
We design clear interfaces that make complex workflows understandable and fast to use.
UX flowsUI designDesign systemPrototypingUser testingAccessibility
Web & app development
We build robust web and mobile apps with stable architecture, performance and quality assurance.
Mobile appsWeb appsPWAAI featuresBackendPerformanceQAPrivacy
Recent work
Current projects at a glance
Selected product visuals from references already listed on our projects page.
Finance1Up Capital GmbH
1Up Capital – Instant Liquidity for Publishers
EventsAPIS Events
Strong Brand Web Presence for APIS Events
SoftwareFolkz GmbH
JobPost+ – Smart Recruiting Platform in Corporate Design
Social MediaIn2nite UG
Frynz – Social Networking in Real Time
GamesSL GmbH
Learn employment law playfully with LexQuiz!
SEOnot public
SEO Tool — Technical SEO with Real-Time Feedback
Sportnot public
Training Camp App – Appointments & Check-ins in Real Time
BlockchainVision Crypto LLC
Vision Wallet – Multi-Chain, Realtime, Exchange
PsychologyProf. Dr. Oettingen
WOOP App – Motivational Aid Reimagined
By the numbers
This is hafencity.dev
15+ Experts
Engineers, designers, and strategists working as one practice from our Hamburg HQ.
50+ Clients
Companies across consumer, healthcare, and B2B trust us with their digital products. Long-term partnerships are the default.
97% Recommendation rate
Repeat engagements and references our buyers actually call. Trust compounds when delivery does.
50+ Launches
Custom mobile and web products shipped from concept to maintenance — owned end-to-end by our team.
100% In-house
Strategy, design, and engineering all live at our Hamburg HQ. One team, one project lead, accountable to you from kickoff to launch.
Since 2023
Helping companies ship digital products — and growing alongside the teams we work with.
References
What teams say about us
Die Agentur hat uns geholfen eine Webapp zubauen. Der Austausch mit der Agentur hat sich angefühlt, als hätten wir die Entwickler eigens im Team und nicht Extern. Immer sehr zeitnahe Rückmeldung und Updates.
Maximilion Seeburg
1Up Capital GmbH
Die Agentur hat uns geholfen eine App zu entwickeln und sie zu launchen. Schnelle und unkomplizierte Kommunikation. Schnelle Anpassung von Änderungen.
Stefan Reiner
SL spielend lernen GmbH
[...] sehr guten und kreativen Vorschläge wie man die App verbessern kann, und die unkomplizierte und direkte Zusammenarbeit. Auch haben sie sich nicht gescheut, extra Arbeit in die App zu stecken, damit diese mehr den Bedürfnissen der User entsprechen kann.
Prof. Dr. Gabriele Oettingen
WOOP
hafencity.dev hat uns geholfen ein SaaS-Tool im HR Umfeld aufzubauen und haben hier ausgezeichnete Arbeit geleistet. Die Umsetzung war perfekt und während der Konzeptphase war das Team ein kompetenter Sparringspartner und Impulsgeber.
Simon Schäfer
Folkz GmbH
[...] Das Team rund um Hauke hat sich sehr zügig in unser komplexes Projekt eingearbeitet, kluge Fragen gestellt und bereits im Kennenlerngespräch wichtige Aspekte durchdacht. Man merkt, dass hier echtes Interesse und viel Erfahrung auf Kundenseite zusammenkommen. [...]
Felix Nunn
PaarBalance GmbH
Development of a mobile app and a corresponding website for our project. From design to the final app, we've seen rapid progress and are pleased with the result. We've achieved over 100k downloads and have a satisfied community.
Jana
Go 428 LLC
Partners who trust us
Next steps
Let's talk about your project
Book a 30-minute discovery call. We'll review your goals, surface unknowns, and outline how we would run the engagement.