Specialised development
Specialised software development: full-stack web development on every common stack, desktop applications for Windows, macOS and Linux, blockchain and Web3, Salesforce implementation and development, and software architecture with fractional CTO services. Dedicated specialists for your team, projects delivered end to end, and take-overs of systems other teams built.
Specialised services we provide
Each page covers what we build, the ways to work with us and the questions clients ask first.
Full-stack development
Full-stack development services: web apps, SaaS products, marketplaces and portals on MERN, MEAN, Next.js, .NET, Laravel, Django, Spring Boot and Rails stacks, with dedicated full-stack developers or project delivery.
Desktop application development
Desktop application development services: Windows, macOS and Linux apps in Qt and C++, .NET, Electron, Tauri, Rust and Swift, plug-ins and .NET Framework upgrades, with dedicated desktop developers or project delivery.
Blockchain development
Blockchain development services: Solidity and Solana smart contracts, DeFi, wallets, exchanges, NFTs and tokenisation, zero-knowledge proofs and indexers, with dedicated blockchain developers or project delivery.
Salesforce development
Salesforce development services: Sales, Service, Marketing, Commerce and Experience Cloud, Apex, LWC, CPQ, Data 360, Agentforce, MuleSoft and AppExchange apps, with dedicated Salesforce developers or project delivery.
Software architecture and fractional CTO
Software architecture and fractional CTO services: solution, cloud, data and security architecture for fintech, SaaS and e-commerce, reviews and due diligence, with dedicated software architects or project delivery.
Covered elsewhere on the site
.NET development
ASP.NET Core APIs, Azure Functions, EF Core and SQL Server from our largest engineering practice, backed by a Top Rated Plus Upwork agency. Take-overs of existing codebases welcome.
Mobile development
Native iOS apps in Swift, cross-platform apps in .NET MAUI and React Native, built by engineers who also own the backend the app talks to.
Rust development
Rust development services: backend services and APIs, blockchain and Web3, systems and infrastructure software, security tooling, embedded firmware and WebAssembly, with dedicated Rust developers or project delivery.
Next.js development
Next.js development services: web applications, SaaS front ends, e-commerce storefronts, marketing sites, AI product interfaces and migrations to the App Router, with dedicated Next.js developers or project delivery.
The same rules on specialised work
A web application, a desktop app, a smart contract and a Salesforce org are built on the same rules as the rest of our work: everything as code, tests that ship with each feature, zero warnings at the end of every change, dependencies on current releases with security advisories as unconditional upgrades, and secrets only in a vault.
Specialists work in your repositories, your tracker and your process, for a product of any size and in any industry. The Ukrainian contract, payroll, invoicing and leave stay with us, and everything they produce is assigned to you.
Specialised work we run ourselves
We run our own company on a platform we built: hiring, onboarding, contracts, time tracking, leave, compensation and invoicing on .NET, Angular and Azure, with Rust desktop software beside it: a time-tracking app and an agent that checks our laptops against our security baseline. It is full-stack, desktop and architecture work under the rules we recommend to clients. Read the case study.
Questions about specialised development
Which specialised services do you provide?
Full-stack web development on MERN, MEAN, .NET, Laravel, Django, Spring Boot and Rails stacks; desktop applications in Qt, .NET, Electron, Tauri, Rust and Swift; blockchain development on EVM chains and Solana, from DeFi and wallets to exchanges and zero-knowledge proofs; Salesforce across Sales, Service, Marketing, Commerce and Experience Cloud, Agentforce and MuleSoft; and software architecture with fractional CTO services.
Our project does not fit any of these pages. Can you still help?
Yes. We take on any engagement and find the specialist for it, and the services, front ends, tests and infrastructure around a specialist component are built by our own .NET, Python, front-end and QA engineers.
How is specialised work contracted and billed?
The same way as the rest of our work: one agreement with BIG TREE 108 LLC and one invoice a month. Time is logged in our own portal throughout the month and the same figures produce the invoice, so the hours you approve and the hours you pay for are one set of numbers.
Who owns the work your specialists produce?
You do. Every specialist has a signed contract with BigTree108 that assigns all work product to the company, and our agreement with you assigns it onward. Code, designs and documents are delivered into your own repositories and tools, not kept where only we can change them.
Need a specialist not listed here?
Tell us the work, the stack and the dates. You get an answer within one business day: candidate profiles or a plan for the work.