# dukai.net > Independent software architecture and full-stack development consultancy. 25+ years of enterprise experience. Specialising in durable, maintainable systems built on Node.js, Hapi.js, MongoDB, Elasticsearch, and Google Cloud. Bilingual operations in English and Hungarian. ## Services - [Architecture review](https://dukai.net/en/services/): Independent audit of existing systems with prioritised risks and concrete refactor plans. - [Greenfield architecture and stack selection](https://dukai.net/en/services/): System design for new products — technology choices, naming conventions, build-pipeline scaffolding. - [Full-stack development](https://dukai.net/en/services/): Node.js, Hapi.js, MongoDB, Elasticsearch, Google Cloud, with a deliberately framework-free front end. Mid-to-long engagements only. - [Cloud and DevOps](https://dukai.net/en/services/): Primarily Google Cloud (Cloud Functions, GCS, Firebase, Cloud SQL, Pub/Sub). AWS familiarity (Aurora, DynamoDB) for migration scenarios. - [Code review and mentoring](https://dukai.net/en/services/): Code-quality audits; one-on-one or team mentoring; SDLC and Agile process coaching. - [Fractional CTO / advisory](https://dukai.net/en/services/): Recurring sessions for founders and technical leads — strategy, hiring, technical decisions, independent honest opinion. ## Approach - [Approach](https://dukai.net/en/approach/): Minimalism over opinion. Naming conventions over APIs. Maintenance is 95% of an app's life — every decision should serve that. ## Writing - [Binding and Model — introducing bimo](https://dukai.net/en/blog/2016-binding-and-model/): On a 2.5 kB vanilla-JS observable model library. - [Isomorphic architecture](https://dukai.net/en/blog/2017-isomorphic-architecture/): Same JavaScript on server and client; tests cover real behaviour, not framework behaviour. ## Contact - [Contact](https://dukai.net/en/contact/): A 30-minute call clarifies what's worth pursuing — no commitment. - Email: tamara@dukai.net ## Languages - English: https://dukai.net/en/ - Hungarian: https://dukai.net/hu/