Senior freelance engineer. Headless commerce that ships.
Independent, senior-only. Eight years shipping Next.js storefronts, Node APIs, and headless commerce for teams in the US, MENA, and India — with checkout conversion and Core Web Vitals as the acceptance criteria, not screenshots.
Six ways I plug into
your engineering roadmap
Six capability areas, one senior engineer signed on the invoice. Every engagement starts with a written scope and a named metric — never a themed template or a discovery call that leads nowhere.
Not sure which fits? Send a two-line brief and I'll suggest the right shape of engagement before we book anything.
Explore All SolutionsThe tools I reach for, chosen for fit — not fashion
Why founders hire me
for the messy work
Untangling a decade-old CS-Cart monolith. Rescuing a Next.js migration halfway through. Cutting TTFB in half on a storefront that never had a budget for it. Complex full-stack work, delivered by one accountable senior engineer — not a chain of account managers and juniors.
Send a two-line briefOne Senior Owner, Not A Chain
You get me on the call, on the PR, and on the ticket — the same engineer from architecture through hand-off. No project managers translating requirements. No junior devs quietly learning on your budget.
Commerce Under Real Load
Eight years shipping carts, checkouts, and multi-gateway payments across CS-Cart, WooCommerce, Laravel, and headless Next.js. I know where the sharp edges hide — race conditions in inventory, refund flows, tax rounding, PSP fallbacks — and design around them before day one.
Performance Is A Shipping Gate
Core Web Vitals aren't a launch-week Lighthouse screenshot. LCP, INP, and CLS budgets are wired into the CI pipeline; image, font, and hydration strategies get named in the architecture doc — not discovered in production.
Predictable, Not Optimistic
Weekly written updates, staging demos every Friday, one shared Slack channel — you always know what shipped, what's next, and what the current risk register looks like. Every scope change comes with a written impact estimate before I move a line.
The engagement, end to end
Five phases with a clear artifact at each one — so you always know what shipped, what's next, and where the risks live.
Discover
A 60-minute working session — never a template questionnaire — to name the outcome, the users behind it, the metric your board cares about, and the constraints your team has already ruled out.
Pressure-Test With AI
LLM-assisted analysis surfaces edge cases, adversarial inputs, and integration risks that usually only appear in sprint three. You get a written requirements pack — not a vibes-based Slack thread.
Architect On Paper
Stack, data model, API contracts, deployment topology, and rollback plan — all signed off before the first production commit. Nothing important is ever discovered mid-sprint.
Ship In Weekly Increments
A clickable staging URL every Friday. Short-lived branches, type-safe merges, CI-enforced performance and accessibility budgets. Scope drift stays visible in one shared board.
Harden & Hand Off
Core Web Vitals tuned, security headers audited, observability wired to a dashboard your team owns. Documentation written for the engineer who inherits it cold, plus a 30-day post-launch warranty on defects.
Client work,
measurable outcomes
Four snapshots of freelance work across three continents — legacy CS-Cart rebuilt for Black Friday, a headless Next.js migration that recovered Core Web Vitals in a quarter, a multilingual Laravel storefront, and multi-gateway B2B payments across MENA.
Pressure-test the brief
before the first sprint.
Drop in your idea or the existing product. An LLM-assisted pass — guided by an engineer who's shipped sixty of these — drafts user stories, enumerates edge cases, and flags the integrations most likely to slip. You leave with a written requirements pack you can hand to any development team, mine or otherwise.
Run My AssessmentPick the shape of the engagement
Consultation for direction, fixed-scope for defined outcomes, or retainer when you need a senior engineer inside the sprint.
Consultation & Audit
Ideal for teams that need architectural direction, a code audit, or an AI-assisted requirements pack before committing to a build.
- Deep-dive codebase audit
- Tech stack selection & strategy
- Core Web Vitals performance review
- AI-assisted architecture blueprint
Fixed Scope Build
For complete portfolio sites, headless commerce builds, custom CMS setups, and platform re-architectures with a defined outcome.
- End-to-end full-stack development
- Custom UI/UX implementation
- Third-party API & payment gateway integration
- SEO & Core Web Vitals optimization
- Thorough QA & launch support
Dedicated Partner
For growing product teams that need ongoing platform development, continuous optimization, and priority technical support on retainer.
- Guaranteed monthly development hours
- Continuous feature expansion
- Priority bug fixes & maintenance
- Weekly strategy & sync calls
Questions I get before
we've exchanged a single email
Straight answers to the seven things almost every founder asks in the first reply.
Who is Deepak Mishra?
Is Deepak Mishra a freelancer or an agency?
What stacks does Deepak Mishra work with?
What kind of engagements does he take on?
How fast is the first reply?
Is there a warranty on the work?
Does Deepak work with clients outside India?
Something you need shipped
this quarter?
Send a two-line brief with the outcome you're after — a build, an audit, a rescue, a second opinion. I read it personally and reply within one business day. No agency middle-layer. No sales funnel.