Available · Freelance & Full-Time

Senior engineering manager & AI-tools builder.

I'm David Biton — 12+ years shipping production systems, AI tooling, and the engineering leadership behind them, under the name DB Studio. I take on a small number of load-bearing engagements at a time, and I'm open to the right full-time role too.

WhatsApp me — instant reply Start a project See live work

Recent, live work — not mockups

Chan True Dream

DevHub

Hirescope

12+

Years engineering

Mobile platforms shipped

100+

Repos worked on

self-hostable engineering dashboard

Live

Hirescope

AI resume builder + ATS scoring

Live

AIRCC Portal

bilingual grant-program portal

Live

Flagscope

feature-flag debt scanner

Live

Orderflow

retailer ↔ supplier order management

Live

Claro

personal finance management

Let's talk

start a project →

01 / LIVE WORK

Recent builds, not just pitches.

Click through — these are running deployments, not mockups.

LiveNext.js 16PostgreSQLRTL i18nAdmin CMS

Chan True Dream

Bilingual crochet-guide storefront with a full admin CMS, shipped in a day.

A solo crochet instructor needed a real storefront for her free and paid pattern guides — bilingual (Hebrew/English, full RTL) — with no engineer on call to run it. Built a Postgres-backed CMS with full edit history and one-click revert: she updates text, images, guide links, and contact info herself, from a browser. Zero monthly cost on Vercel + Neon + Blob free tiers.

View source →

Landing liveNext.js 16GitHub + Azure DevOpsAI-native

DevHub

Self-hostable engineering dashboard — repos, PRs, and sprints unified, with AI grounded in real delivery data.

The biggest thing in the studio: a self-hostable, white-label alternative to Backstage/Cortex/Faros — same category of control, without the six-month build or the six-figure SaaS contract. The positioning site below is live; the full product is the next build.

Frontend liveNext.js 16SupabaseStripeClaude API

Hirescope

AI resume builder with real ATS scoring, a drag-and-drop section builder, application tracking, and personal insights.

Resume.io and Zety sell templates; Teal scores against a job description but stops there; LazyApply and Simplify auto-apply by scripting LinkedIn/Indeed, which sits in a ToS grey zone. This closes the loop the other way: Claude-powered ATS scoring (matched/missing keywords, phrasing suggestions) backed by a free local keyword scorer for instant feedback while editing, a drag-and-drop resume builder that renders the same section order to PDF and DOCX, real Greenhouse/Lever job search via their public APIs, and a tracker tied to which resume version was actually used. LinkedIn/Indeed stay deep-link search only — no bot-driven auto-apply — a deliberate line, not a missing feature.

Frontend liveReactExpressPostgreSQLTailwindi18next

AIRCC Portal

Bilingual (Hebrew/English) portal rebuild for a subsidized-GPU research grant program.

Replaced a static, English-only, admin-less site with a fully admin-managed platform: every page is editable with full version history and one-click rollback, a GPU cost calculator quotes real subsidized pricing before applicants commit, and a communication center handles announcements and digests — the kind of self-serve content and comms layer that turns a one-off site into something a non-technical program team can actually run.

View source →

Live · WaitlistNext.jsProvider APIsGitHub App

Flagscope

Multi-provider feature-flag debt scanner with one-click cleanup PRs.

Connects LaunchDarkly, Flagsmith, Statsig, Unleash, GrowthBook, and ConfigCat; finds stale and ownerless flags before they rot into incidents, and opens the cleanup PR automatically instead of leaving it as a backlog ticket nobody picks up.

LiveNext.js 16PostgreSQLSupabase

Orderflow

Digital order management connecting retailers, store customers, and suppliers.

Replaces the phone-call-and-spreadsheet order workflow between retailers and suppliers with a shared digital pipeline — retailers place and track orders, suppliers manage fulfillment, and both sides see the same order status in real time instead of chasing it over WhatsApp.

View source →

LiveReactNode.jsPostgreSQLSupabaseRailway

Claro

Personal finance management app with AI-powered insights, budget tracking, and financial goal management.

Full-stack budgeting app: transaction tracking, credit-card and goal management, and AI-generated spending insights, with strong account security (rate limiting, entropy-scored passwords, duplicate-email protection). React frontend on Vercel, Node/Express API on Railway.

View source →

02 / WHAT I DO

How I help.

Headline capabilityAI integration · platform engineering

AI Engineering — adoption, automation, and serious tooling

Why teams hire me here

Teams adopting Claude / LLMs land in one of two ditches: "AI as gimmick" (chat widget, no leverage) or "AI as risk" (autonomous agents nobody trusts). I help teams skip both.

What I actually do

I design AI workflows that actually fit your codebase — custom Claude Code workspaces, automated PR review with rule-aware prompts, MCP integrations, agent design for specific repeatable tasks. Workshop-paced, shipped working, owned by your team afterward.

Outcome

Senior engineers stop reviewing style. Reviews get faster. Onboarding gets shorter. AI becomes a teammate, not a demo.

Claude APIClaude CodeMCPPrompt engineeringAgent designTypeScript

claude · ai-pr-review

$claude review PR #142

● Loading workspace rules…

● Fetching diff… 12 files, +482/-67

● Routing to agent: code-reviewer

CRITICAL external-api-safety

New health check hits a billable endpoint. At 60s × 24h × 3 envs you'd burn 4,320 paid calls/day. Switch to a free status route.

IMPORTANT missing-feature-flag

New endpoint ships without a feature flag — no staged rollout possible. Recommended: gate behind a per-tenant toggle.

● 2 issues posted to PR ✓

Architecture · scaling

Backend & platform engineering

Why teams hire meWhen the system is harder to change than it should be, or you're afraid to touch the orchestration layer.

What I doMicroservices and event-driven design. Internal developer platforms. Multi-tenant SaaS plumbing. The unglamorous stuff that decides whether next year is smooth or painful.

OutcomeArchitecture that compounds instead of corroding. Teams move faster without burning the place down.

TypeScriptNode.jsNestJSPostgreSQLKafkaRedis

03 / CONTACT

Have something load-bearing to build?

I take on a small number of engagements at a time, and I'm open to full-time roles too. AI strategy, engineering leadership, backend architecture, mobile direction — if it's senior, let's talk.