Melike Dogan

Senior Full-Stack Developer | 7+ Years in Scalable Software, Cloud, and E-Commerce Platforms | Node.js, Angular, Java, C#, SQL

Odense, Region of Southern Denmark, Denmark

About

Senior Full-Stack Engineer with 7+ years of experience building and scaling products across fintech, e-commerce, EdTech, and telecom/eSIM. I design reliable cloud services and fast user experiences. My work has supported hundreds of thousands of users worldwide with 99.99% uptime. What I do best: - Architect cloud systems on GCP/Azure with Docker and CI/CD so teams ship safely and often. - Build APIs and frontends that are simple to use and easy to maintain. - Turn messy problems into measurable wins for the business. Highlights: - Kept a global eSIM platform running at 99.99% uptime on GCP while the user base scaled to 500k+ worldwide. - Cut API response times by 8–30% through better queries, caching, and indexing (PostgreSQL + Firestore). - Delivered core e-commerce features used by thousands of businesses, improving stability and reducing production bugs. - Built an online exam/monitoring system used for thousands of assessments each year, with automated scaling and CI/CD. I care about clear code, solid testing, and observability. I mentor teammates, write useful docs, and help align engineering work with product goals. Based in Denmark; open to remote, hybrid, or on-site roles. Open to relocation for the right opportunity. Skills: TypeScript · Node.js · Java · Spring Boot · C#/.NET · Angular · REST · Event-Driven Design · PostgreSQL · Drizzle ORM · Firestore · BigQuery · GCP (Cloud Run, Pub/Sub, Cloud Tasks) · Azure · Docker · Kubernetes · GitHub· GitLab · Redis · Monitoring & Logging Contact: [email protected]

Experience

  • Senior Fullstack Developer at LedgerBee Technologies A/S
    Apr 2026 - Present · 3 mos

  • Senior Software Developer at Firsty.app
    Mar 2024 - Mar 2026 · 2 yrs 1 mo

    ● Architected and developed an eSIM and data platform serving 500,000+ users in 100+ countries with 99% uptime ● Built backend services and an admin portal using Node.js, Angular, GCP, Firestore, and PostgreSQL ● Optimized APIs and queries, improving response times by 8–50% and enhancing user experience ● Managed cloud infrastructure and CI/CD pipelines, ensuring scalable, secure, and cost-efficient deployments ● Combined software architecture (microservices, modular design) with system-level decisions (cloud, security, reliability) to deliver a resilient global platform

  • Senior Software Developer at Bizzkit
    Nov 2022 - Feb 2024 · 1 yr 4 mos

    ● Delivered core e-commerce features powering thousands of businesses and millions in annual transactions ● Designed and optimized backend services using C#, SQL, Hangfire, and Azure ● Collaborated with QA to reduce production bugs by 90%, significantly improving platform stability ● Contributed to backend system design discussions with a focus on scalability and performance ● Partnered in agile planning and sprints, helping the team achieve 95% on-time delivery of releases

  • Full Stack Developer at Codeshake
    Apr 2020 - Oct 2022 · 2 yrs 7 mos

    ● Architected and maintained a multi-country learning platform serving thousands of students ● Built an online exam & monitoring system used for thousands of annual remote assessments ● Developed scalable features using Java, Angular, Vue.js, Node.js, and Go ● Automated deployments and scaling with GCP and CI/CD pipelines, improving uptime and reducing manual work ● Collaborated with product and QA teams to shape architecture and stack choices for growth and stability

  • Software Developer at PayALL
    Aug 2018 - Mar 2020 · 1 yr 8 mos

    ● Architected and developed a payment app adopted by hundreds of companies, handling thousands of monthly transactions ● Led mobile development with Java, Swift, and Objective-C, accelerating delivery speed by 70% ● Designed and maintained backend/frontend components with .NET, Angular, Java, and SQL ● Streamlined deployments via Bitbucket, GitLab, and Jira, reducing release bottlenecks ● Contributed to system architecture decisions to ensure scalability, maintainability, and security