Build new products. Modernize what you've shipped. Design what comes next.
Three deliverable-focused services from a senior India-based engineering team that ships production software every day.
Three ways we partner with engineering teams
Each engagement ends with something concrete in your hands — not just hours billed.
New product engineering
A production-ready product, owned by you.
We take an idea from discovery to launch — domain modeling, UX, full-stack engineering, QA, and a measured rollout. Built with the same rigor we put into our own SaaS products.
- Discovery sprint to lock scope, architecture, and timeline
- Web, mobile, and backend engineering — React, Next.js, .NET, Node.js, React Native
- Multi-tenant architecture, identity, billing, and admin from day one
- Documented codebase, CI/CD, and observability — no lock-in at handover
- Typical: MVP in 8–16 weeks; production-ready in 4–6 months
Existing product services
The same software, faster, more reliable, easier to extend.
Software that's already running can almost always be improved without a rewrite. We modernize, extend, and stabilize what you have — without breaking what works.
- Legacy to cloud-native migration (on-prem → AWS / Azure / GCP)
- New modules and features on top of your existing codebase
- Performance tuning, refactoring, and technical debt cleanup
- API-first refactor — open up existing systems for partners
- Bug-fix and stability programs with clear SLAs
Architecture & technical design
Specs, diagrams, ADRs, and a defensible plan your team can build to.
Architecture as a deliverable — not just whiteboard sessions. We design the system, document every key decision, and hand over something your engineers can execute against.
- System design: multi-tenant, scaling, security, compliance
- Cloud architecture for AWS / Azure / GCP with cost projections
- Tech stack selection backed by Architecture Decision Records (ADRs)
- Pre-investment or pre-build technical due diligence
- Roadmap alignment — what to build now, next, and later
Also available on request: managed services, training, and dedicated teams. Talk to us about your specific need.
Three engagement models
Pick what matches your project. We'll suggest one in the first call if you're unsure.
Fixed-bid
Well-defined scope, clear deliverables
Best for MVPs, proof-of-concepts, and projects with stable requirements. We scope, quote, and deliver against a fixed price and timeline.
- Fixed price, fixed timeline
- Detailed SOW upfront
- Change requests handled via addendums
- Best for 4–12 week engagements
Time & Materials
Evolving scope, iterative delivery
Best when requirements evolve or you want to start fast. We bill weekly or monthly for actual hours worked with full transparency.
- Daily or weekly time reports
- Burn-down dashboard
- Adjust scope and team size on the fly
- Best for ongoing product work
Dedicated team
Long-term commitment, your team in India
We build a dedicated 3–30 person team that integrates with your stand-ups, codebase, and processes. You manage the roadmap; we handle hiring and HR.
- 3–30 dedicated engineers
- Direct reporting to your team
- Time-zone aligned to your region
- Best for sustained product investment
Why teams pick Nexsell
Production-grade engineering
We ship our own SaaS products — multi-tenant, cloud-native, audit-ready. The same engineering rigor goes into every client build.
Senior engineers, not staffing
Every project is led by senior engineers who've shipped at scale — not warm bodies billed by the hour. India-rate, global-quality.
Architecture you can defend
We don't hand-wave the design. Every architecture decision is documented (ADRs), justified, and built to hold up in a review.
Compliance-aware
GST, GDPR, HIPAA, SOC 2 — we've designed against real regulatory frameworks and know how to build for audit-readiness from day one.
Honest scope conversations
If your idea needs cutting, we'll say so. If it can be done faster with a different approach, we'll suggest it. No padded estimates.
No vendor lock-in
Code, infrastructure, and documentation are yours from day one. Take the project in-house any time — we want repeat clients, not hostages.
Ready to transform your business?
Whether you run a single store, a chain, or a software team — talk to us. We'll show you a live demo and tailor the right plan.