Freelancer profile translated to English.
Back to original languageAbout Solomon
As a product-focused developer with experience in application development, I support you from the initial idea to stable operation in implementing digital solutions.
This includes coordinating with stakeholders, understanding practical problems, translating requirements, and developing solutions that simplify processes, reduce errors, and save measurable time.
My focus areas:
- Consulting: Technical and product-related consulting – also for non-technical stakeholders.
- Product Development: Conception and elaboration of products – from idea to market launch.
- Architecture & Planning: Support with software architecture, infrastructure, and technical planning.
- Backend Development: Go, C#, and Java via gRPC, MQTT, and REST.
- Frontend Development: Web applications with SvelteKit, Next.js, and Angular.
- Databases: Use of SQL and NoSQL databases (including MongoDB and Elasticsearch).
- Internal Tools: Development of CLIs and tools for process optimization and automation.
Collaboration:
- Remote or on-site – as needed
- Willingness to travel by arrangement
- Professional liability insurance is available
German
Native or bilingual
English
Fluent
Can work on-site
Hamburg (up to 30km)
Experience
- SHOWZLead Developer - AI Fashion Shooting ToolFASHION AND COSMETICSJanuary 2026 - May 2026 (4 months)Berlin, GermanyTechnical responsibility for the development and market launch of an AI-powered SaaS tool, including frontend, backend, API, and system architecture.
- Gathering business requirements with stakeholders and translating these requirements into architecture, infrastructure, data model, and concrete software implementation.
- Team Access & Rights Management: Development of a team management system with workspaces, member administration, supplemented by definable branding styles to ensure consistent results within teams.
- Iterative Image Development: Development of a feature for targeted further development of individual image attributes (e.g., color, styling, accessories), including version history for traceability, reuse, and further processing of previous iterations.
- Payments & Subscriptions: Integration of a multi-tiered subscription model with Stripe, including different feature sets per package, upgrade/downgrade options, and individually configurable conditions for enterprise customers.
- API Integration & Quality Assurance: Integration of multiple external APIs with an automatic fallback mechanism to increase fault tolerance. Conducting technical reviews to identify and resolve performance, security, and scaling risks.
Contact Person: Creative Director, SHOWROOMING GmbH, Reference available upon request - aireal GmbHFullstack Product Engineer - Ad-TechPRESS AND MEDIAAugust 2021 - April 2025 (3 years and 8 months)Hamburg, Germany
- Agile work with close communication and collaboration with technical and non-technical stakeholders, as well as creation of technical documentation, concepts, and guides.
- Planning and implementation of services for real-time advertising mediation between DSPs and publishers (radio stations, streaming platforms like Spotify) using REST, gRPC APIs, and MQTT for service-to-service communication.
- Mentoring and support through technical explanations, reviews, project guidance, and knowledge transfer.
- Setup and management of authentication, role models, and access for internal users and customers. Also for CI/CD pipelines, builds, deployments, rollbacks, secrets, environments, and container configurations.
- Creation of web interfaces and backends for configuration, ad bookings, and interactive dashboards with on-demand aggregations from NoSQL (Elasticsearch, MongoDB) and SQL databases.
- Optimization of business and internal processes (using algorithms like Bin Packing for ad inventory utilization) and internal DevTools and scripts.
- Building data pipelines for capturing, processing, and analyzing streaming behavior. Error analysis and troubleshooting in productive integrations were also part of this, including analysis of logs and API responses.
Contact Person: CFO, aireal GmbH, Reference available upon request
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Education
- IT Specialist for Application Developmentaireal GmbH2024Fachinformatiker für Anwendungsentwicklung