3dev

Built by people who previously worked at large corporations, 3dev designs, builds and ships custom software, taking projects from early discovery through to release, and it says it has worked on large projects where several teams built one app. Recent projects lean toward blockchain dashboards, DeFi and NFT work, though the firm also serves fintech companies, FMCG brands, celebrities and engineering firms.

Front-end builds in React, Angular and plain JavaScript

The front-end team works in React, Angular and plain JavaScript, and it says it designs complex user experiences for web applications. The firm reports ten years of Angular project experience across different domains. For larger apps, it uses tools such as ngrx, nrwl and module federation, along with micro-frontends, so that several teams can work on one product. It says several of its fintech projects needed rapid changes to data and had to handle real-time demands.

Data visualization in three.js, Babylon.js and d3.js

Data visualization is a large part of the firm's work, and it uses three.js, Babylon.js and d3.js for charts and three-dimensional views. The firm says professional visualization is part of about half of its products and is often needed in blockchain dashboards. Its Space Cartels NFT launch, and a trading application fed by seven exchanges' data streams, are the featured examples of that work. The firm reports 21 milliseconds for trade decisions in that tool.

Smart contracts and NFT collections from feasibility to audit

The blockchain practice runs feasibility studies on NFT project ideas, then handles contract development, testing and auditing. The firm says that because smart contracts are hard to change once deployed, early review helps avoid expensive bugs, and it says it has advised on projects at early stages and after security incidents. It also reports that it has deployed multiple custom NFT smart contracts to production, used by hundreds of users.

Back-end and cloud work on AWS

The back end is built in Node.js and Nest.js, with databases of all types, and the firm has built both conventional and serverless back ends on AWS services such as EC2, DynamoDB, API Gateway, S3, RDS and Lambda. The firm says it has gained five years of experience building serverless back ends, and that it has worked through every stage of DeFi development, from feasibility study to implementation, testing and auditing.