--- title: "Software and product engineering" description: "Full-stack platforms, APIs and applications engineered to be operated, not just launched." url: https://www.expandware.com/services/engineering/software-and-product-engineering/ section: "Services" topics: ["Engineering", "TypeScript", "React", "Next.js", "Node.js"] publisher: "Expandware Private Limited" --- # Software and product engineering Full-stack platforms, APIs and applications engineered to be operated, not just launched. Software built for production from the first commit. The difference between an MVP and a product is everything that happens after launch. We build with that day in mind: tested pipelines, security scanning, accessibility, and an architecture the next engineer can actually work in. Where it usually starts: - The platform was built fast, and now every change breaks something somewhere else. - A new product has to launch on a date and stay up after it. - An internal tool has outgrown the spreadsheet or low-code app it started as. - The team that built the system has left, and nobody can change it safely. What is included: - Web platforms: Server-rendered and single page applications on typed APIs. - APIs and services: API design and service architecture in TypeScript, Python, Go or .NET. - Product design: UX and UI with WCAG 2.2 AA accessibility built in. - Testing: Automated unit, integration and end-to-end tests in the pipeline. - Security in delivery: Dependency, secret and code scanning on every commit. - Handover: Documentation, runbooks and knowledge transfer. Where it sits: Product engineering covers both ends of the engineering architecture: the engineers who build, and the production services they deliver, with the release path between them run to the same standard. Decisions to settle early: - Build or buy. If a product already does the job well, building is waste. We build where the software is how you compete. - Which stack. The stack should be one your team can hire for and maintain. Mainstream choices win unless the product needs otherwise. - Who runs it after launch. Your team, ours or both. The handover is planned from the start, not at the end. How the work runs: Scope, Acceptance criteria agreed before the build. Build, Typed APIs, tests and accessibility. Scan, Security checks on every commit. Hand over, Documented, tested, with the source. How it is bought: - A fixed-fee assessment: We review the product idea or existing codebase, the users and the constraints, and agree acceptance criteria. You receive the findings, a delivery plan and a fixed build price. - A fixed-price build: The build to the agreed acceptance criteria, with tests, security scanning, accessibility and documentation, at a fixed price. - Running it afterwards: After launch, your team takes over with the handover, or we continue to operate and develop the product on a retainer. Worked example, a tool that outgrew its spreadsheet. Say a logistics company plans its routes in a large spreadsheet with macros only one person understands, and the business now needs drivers, dispatchers and customers to see the same plan. - Scope: We agree with the dispatchers who use the spreadsheet today what the first release must do, who uses it, and how each requirement is tested. - Build: A web application with a typed API replaces the spreadsheet, delivered in small releases that dispatchers try as they arrive. - Secure: Dependency, secret and code scanning run on every commit, and the customer view is tested for accessibility before it goes live. - Hand over: The code, tests, documentation and runbooks are in the company's repository, and its own developers deploy the final release. At the end, planning runs on a system more than one person understands, customers can see their deliveries, and the company owns and can change the code. (An illustration, not a client account.) What you have at the end: - Product specification and acceptance criteria: What the product must do and how each requirement is tested, agreed before the build starts. - Source code in your repository: All the code in your version control from the first commit, with its history, rather than delivered at the end. - Automated test suites and pipeline: Unit, integration and end-to-end tests that run on every change, in a pipeline you control. - Architecture and API documentation: How the system is structured and how its APIs behave, written for the next engineer. - Runbooks and handover sessions: How to deploy, operate and troubleshoot the system, taught to your team before we step back. Standards and platforms worked with: TypeScript, React, Next.js, Node.js, Python, Go, .NET, PostgreSQL, WCAG 2.2, OWASP ASVS. Where it goes wrong, and what we design out: - Building before agreeing what done means. Without acceptance criteria, every review is a negotiation. Criteria are agreed before the build. - Code delivered at the end. Source handed over in a final package hides problems until it is too late. Code lives in your repository from the first commit. - An architecture only its authors understand. A clever design nobody can hire for becomes a liability. We favor mainstream, well-supported technology. What it changes: - An architecture built to evolve. Boundaries, APIs and dependencies are chosen to support the next release and the next team, not only the first demo. - Safety in the delivery path. Automated testing, security checks and reviewable releases reduce the risk of every change. - Ownership that transfers cleanly. Documentation and knowledge transfer are part of delivery, so you keep control of the product you funded. How you will know it is working: - Releases arrive in small, usable steps. - Every commit passes tests and security scanning. - Your engineers can deploy without us. - Accessibility is tested, not assumed. Who you work with: - Engineering lead. Owns architecture, delivery and the acceptance criteria with you. - Software engineers. Build features, tests and pipelines in your repository. - Product designer. Designs the experience and tests it with real users, accessibility included. What we need from you: - A product owner who can make decisions quickly. - Access to users for research and testing. - Repositories and environments, or permission to create them. - Any existing code, designs or specifications. Common questions: Q: Who owns the source code and documentation? A: You do. The agreed work product transfers on payment under the statement of work, with documentation and a structured handover. Q: Can you take over a build another team started? A: Yes, and much of our work begins that way. We assess maintainability, delivery risk and security posture first, so you get an honest read on what is worth keeping before anyone commits to a plan. Q: What does accessibility mean in practice on your builds? A: WCAG 2.2 AA as a build requirement rather than a retrofit: keyboard operability, contrast checked automatically, real form labels and structure assistive technology can navigate, enforced in the pipeline rather than audited at the end. Q: Will we be able to hire engineers who can work in this codebase? A: That is a design constraint we take seriously. We choose established tools over interesting ones, document the decisions that are not obvious and avoid patterns that need us to explain them. Q: How is a product build priced? A: Once the assessment has established the scope, the build is priced as a fixed figure, with the assumptions it depends on written down. A change to the scope is priced the same way before it is made, so there is no hourly meter running in the background. Q: How do you choose the technology stack? A: From what the product needs and what your team can own afterwards. We favor mainstream, well-supported technologies such as TypeScript, Python, Go and .NET, and pick the one your developers can hire for and maintain, unless the product needs something specific. Q: How often will we see working software? A: Throughout the build, in small releases to an environment you can use, so feedback arrives while it is cheap to act on. Acceptance criteria are checked as each piece is delivered rather than all at once at the end. Q: What happens after launch? A: Either your team takes over with the handover we have prepared, or we keep operating and developing the product under a retainer. Many clients choose a mix, with their team owning the roadmap and ours on call for the platform. Often paired with: DevOps and SRE, Web and mobile, Generative AI and agents. --- Canonical page: https://www.expandware.com/services/engineering/software-and-product-engineering/ Site index for machines: https://www.expandware.com/llms.txt Full site text: https://www.expandware.com/llms-full.txt Expandware Private Limited. Inquiries: solutions@expandware.com, +92 (333) 32 11011.