About Bisma
I am a senior mobile application engineer with over 11 years of professional experience delivering reliable, production-ready mobile solutions. I hold a Bachelor’s degree in Software Engineering and a Master’s degree in Engineering, and I bring a strong engineering mindset to every project I work on.
My primary expertise is native iOS development, where I help clients build, improve, and maintain high-quality mobile applications. I am equally comfortable working on new products from scratch, modernizing existing codebases, or taking ownership of complex applications that require stability, performance, and long-term maintainability.
What I bring to mobile projects:
Deep experience in native iOS development (Swift)
Strong understanding of scalable mobile architectures (MVC, MVVM, Clean Architecture)
Ability to work effectively with existing codebases and improve code quality
Solid API integration and backend collaboration experience
Performance optimization, debugging, and technical problem-solving
End-to-end experience with App Store releases, updates, and maintenance
I focus on writing clean, maintainable, and well-structured code that supports future growth rather than short-term fixes. Clients value me for my ability to understand requirements quickly, communicate clearly, and deliver solutions that integrate smoothly into real-world products.
Based in Germany (CET), I work well with both EU and international teams and am familiar with GDPR-aware development practices. I communicate fluently in English and can work in German when required.
I typically support clients with:
Feature development and enhancements
Refactoring and technical debt reduction
Long-term application maintenance
Ownership of critical app components
Supporting teams during growth or transition phases
If you are looking for an experienced mobile engineer who can add immediate value, adapt to your existing setup, and deliver dependable results, I would be happy to discuss your project.
English
Native or bilingual
German
Conversational
Remote only
Primarily works remotely
Experience
- Confidential Client / Enterprise Mobile ProductLead Mobile Application EngineerDIGITAL AND ITSeptember 2020 - Today (5 years and 9 months)Heilbronn, GermanyLead a team of mobile engineers in building and maintaining a production-grade iOS application with a large user base.Own technical architecture decisions, code quality standards, and long-term maintainabilityMentor and review team members’ code, ensuring best practices and scalable design patternsCoordinate closely with product managers, designers, and backend teams to deliver new features on time.Implement performance optimization, CI/CD pipelines, and App Store release processesDrive refactoring and technical improvements that reduce bugs, improve stability, and support future growth.
- Confidential ClientSenior Mobile Application EngineerBANKING AND INSURANCEAugust 2015 - September 2020 (5 years and 1 month)Developed and delivered multiple iOS applications used by thousands to millions of usersDesigned and implemented scalable architecture for complex features and integrationsIntegrated backend APIs, third-party services, and push notificationsOptimized application performance, reduced crash rates, and improved code maintainabilityParticipated in full software lifecycle: feature development, testing, deployment, and updates
- Multiple Confidential Clients / Short- and Long-Term ProjectsMobile EngineerJanuary 2011 - May 2015 (4 years and 4 months)Delivered native iOS solutions for diverse clients across B2B and B2C domainsTook ownership of feature development, bug fixing, and app maintenanceApplied best practices for architecture, performance, and code qualityCollaborated with product managers, designers, and backend engineers to ensure project success
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Education
- Masters in Software Engineering ManagementHochschule Heilbronn - Hochschule für Technik und Wirtschaft2023Completed graduate-level studies focused on engineering leadership, software architecture oversight, and delivery management. The program emphasized planning and executing complex software projects, balancing technical quality with timelines, and coordinating between engineering and product stakeholders, strengthening my ability to deliver mobile solutions reliably and at scale.