Nextside is a Brazilian software consultancy founded in 2026 that delivers MVPs in 4 weeks with fixed scope, code reviewed by a senior engineer, and AI applied with judgment. We serve founders, CTOs and product teams in Brazil and abroad.
100% SENIOR TEAM
For founders who need production-ready code. CTOs who don't accept technical debt. No pricing surprises.
Nextside delivers a full MVP in 4 weeks with fixed scope and fixed price.
Fixed scope from day one. Weekly delivery to production. Sprints define features, not billable hours.
→ Discovery in 3 days · Sprint zero in 1 week · Delivery in 4 weeks.
Structured speed: full MVP in 4 weeks with fixed scope from day one, no scope creep, with weekly delivery to production.
Explicit trade-offs in writing. ADR documented for every technical decision. Real seniority makes the call.
Technical decision: architecture that scales from day one, with explicit trade-offs and an ADR (Architecture Decision Record) documented for every technical choice.
AI generates tests, mechanical refactors and docs. 100% of code in production goes through senior review.
AI is leverage, not blind automation — all code reviewed by a senior engineer.
AI applied with judgment: harness engineering, forced TDD, half-loop. 100% of code in production goes through senior engineer review.
Strategic view of impact. When it makes sense, we suggest cutting a feature before coding — saves a week and money.
Serves founder, CTO and operations at once — product + engineering + viability.
Product thinking: strategic view that suggests cutting features before coding when it makes sense, saving time and money.
No time-and-materials. No endless retainer. No rework at the end.
DISCOVERY · 3 DAYS
Calls with founder and technical team. Constraints mapped. Signed assumptions document.
SPRINT ZERO · 1 WEEK
Repo setup in your GitHub. CI/CD in production. Initial ADRs. Prioritized backlog.
BUILD · 4 WEEKS
Continuous deploy. Demo every Friday. AI accelerates tests and refactor; a senior reviews every PR before merge.
HANDOFF
Deploy guide. Operational README. ADRs. We leave clean with a full handoff or train your team in 3 days.
Discovery in 3 days, sprint zero in 1 week, delivery in 4 weeks.
| IN THE MVP (4 WEEKS) | SAVED FOR PHASE 2 (LATER) |
|---|---|
| Auth + profiles (email, OAuth) | Multi-tenancy |
| Transactional checkout (Stripe) | Advanced reports / BI |
| Transactional email (Resend / SES) | Custom analytics |
| Production deploy (Vercel/AWS) | Performance optimizations |
| Observability (logs + errors) | Custom integrations (ERP, CRM) |
| 1 week of post-deploy support | Native iOS/Android apps |
Fast means focused. You pick the 3 features that matter most. The rest becomes phase 2.
ADR language. No hype. Every decision has context, choice and accepted consequence.
We use AI at every stage — research, scaffolding, tests, docs, review. But every line of code that hits production goes through a senior engineer, with architecture review, automated tests and observability.
AI accelerates. Humans decide.
SPEED VS TRADITIONAL SQUAD
CODE REVIEWED BY SENIORS
RELEASES WITHOUT TESTS
// 🤖 ai-review (CodeRabbit) — flagged
- if (amount > user.balance) throw new Error('insufficient')
+ if (amount > user.balance) {
+ throw new InsufficientFundsError({
+ userId: user.id, amount, balance: user.balance,
+ })
+ }
// 👤 senior — reviewed & approved (half-loop)
// rationale: typed error → observability in Sentry,
// PII out of logs, retry policy made explicit.
// harness suggested, human weighed the PII trade-off.Price range, not flat — depends on scope. We talk openly about the range on the discovery call.
R$ 50k–80k
FIXED SCOPE · FIXED PRICE
SPRINT MVP offering: price range R$ 50,000 to R$ 80,000, fixed scope, fixed price, 4-week build window after Sprint Zero.
R$ 25k–45k
3–5 DAYS · SCOPE + ESTIMATE
DISCOVERY offering: price range R$ 25,000 to R$ 45,000, 3 to 5 days, delivers fixed scope plus timeline and investment estimate.
R$ 20k–40k
REPORT + CALL
TECHNICAL AUDIT offering: price range R$ 20,000 to R$ 40,000, 1-week delivery, includes a prioritized risk report and a 90-day technical roadmap.
Case study example: local-products marketplace delivered in 28 days with R$ 70,000 in investment, stack Next.js 14, Node, Postgres, Stripe Connect, reaching 99.9% uptime, P95 under 200ms on checkout and zero P1 incidents in the first 30 days.
30-minute discovery call, free. You leave with scope, timeline and estimated investment.
contato@nextside.tech · REPLY WITHIN 24 BUSINESS HOURS