SERVICES

Software development services with transparent pricing and zero agency fluff.

CodexiLab partners with ambitious founders and engineering teams that demand high architectural discipline, premium user experiences, and honest commercial pricing.

Capabilities & Rates

Core Engineering Capabilities

Each service is delivered with direct architectural accountability, automated test coverage, upfront timeline estimates, and transparent pricing.

AI Development

We engineer production-grade AI systems that solve real operational bottlenecks. Rather than building fragile prompt wrappers, we implement resilient retrieval-augmented generation (RAG), vector similarity search, deterministic business guards, and automated evaluation frameworks.

  • Hybrid retrieval-augmented generation (RAG) combining dense embeddings with BM25 lexical search
  • High-speed semantic caching with Redis HNSW cutting LLM inference costs and latency by up to 80%
  • Deterministic guardrails, structured JSON output validation, and automated safety regression testing
  • Seamless model routing across OpenAI GPT, Anthropic Claude, and Google Gemini API engines
2–4 Weeks From $3,500

Software Development

Custom software engineering built to withstand real user traffic and operational complexity. We craft robust backend engines, clean domain boundaries, automated testing pipelines, and observable systems designed for years of maintainability.

  • Domain-Driven Design (DDD) with clear architectural separation between business rules and storage
  • PostgreSQL schema optimization, connection pooling, complex indexes, and zero-downtime migrations
  • Asynchronous queue pipelines, dead-letter monitoring, and distributed transaction reconciliation
  • Automated CI/CD test runners, static analysis (PHPStan / ESLint), and comprehensive OpenAPI specs
3–6 Weeks From $4,000

Mobile App Development

High-performance iOS and Android applications built with Flutter and Dart. We deliver silky-smooth 60/120 FPS native experiences, offline-first local data synchronization, and clean state management architectures that scale.

  • Single codebase deployment for iOS and Android, eliminating feature divergence and halving maintenance costs
  • Offline-first architecture with local SQLite/Isar caching and automatic bi-directional sync
  • Native hardware integrations: biometric authentication, push notifications, camera pipelines, and background sync
  • Full App Store and Google Play compliance, automated test suites, and streamlined release automation
4–6 Weeks From $4,500

Web Development

Modern web applications designed for blazing speed, high conversion, and resilient uptime. From customer-facing dashboards to complex multi-user portals, we combine responsive UI design with optimized Core Web Vitals.

  • Sub-second Largest Contentful Paint (LCP) and zero Cumulative Layout Shift (CLS) optimizations
  • Reactive frontend architecture using React, Vue, TypeScript, and modern Tailwind CSS design systems
  • Enterprise authentication: OAuth2, WebAuthn passkeys, role-based session management, and rate limiting
  • SEO-friendly server-side rendering (SSR), dynamic OpenGraph social cards, and schema metadata
2–4 Weeks From $3,000

SaaS Development

Complete subscription product engineering for B2B and consumer software. We structure every layer—from multi-tenant database isolation and payment lifecycle handling to self-service administration and audit logging.

  • Multi-tenant database architectures utilizing PostgreSQL Row-Level Security (RLS) for absolute tenant isolation
  • Turnkey Stripe, Paddle, and LemonSqueezy subscription billing, automated invoicing, and webhook listeners
  • Role-based access control (RBAC), team organization hierarchies, and granular permission gates
  • In-app analytics, onboarding funnels, transactional emails, and telemetry health dashboards
4–8 Weeks From $5,500

Enterprise Solutions

Purpose-built internal software and modernization for growing companies. We replace clunky legacy software, error-prone spreadsheets, and fragmented tools with unified, secure enterprise workflows.

  • Custom ERP, CRM, and inventory management platforms tailored to exact business operating logic
  • Enterprise single sign-on (SSO) integration via SAML 2.0, OpenID Connect, and corporate directories
  • Comprehensive audit trails, immutable change logging, and compliance-ready data handling
  • Legacy database migration pipelines executed safely with zero data loss and minimal downtime
3–6 Weeks From $4,500

Cloud Applications

Resilient cloud infrastructure and deployment pipelines designed for 99.9%+ availability. We build cloud-native applications with containerized microservices, edge caching, and automated autoscaling.

  • Docker containerization and immutable deployment artifacts ensuring dev-to-prod environment parity
  • Cloud orchestration across AWS, Google Cloud, DigitalOcean, and modern edge platforms
  • Automated disaster recovery, automated daily database snapshots, and health monitoring
  • Centralized logging, distributed tracing, and real-time alerting systems for proactive debugging
1–3 Weeks From $2,500

Product Engineering

A product-led approach that balances UX, architecture, delivery speed, and future roadmap flexibility. We act as your fractional engineering leadership, turning product ideas into commercially viable, market-tested software.

  • Technical roadmap definition, architecture spikes, and rapid proof-of-concept (PoC) validation
  • Interactive Figma UI/UX prototyping aligned directly with reusable component design systems
  • Agile 2-week sprint cycles with transparent progress dashboards and live preview builds
  • Full intellectual property transfer, clean code handoff, and developer onboarding documentation
Sprint-Based From $3,400/mo
Investment Packages

Transparent Engagement Models

Predictable pricing without hidden agency markups or billable hour inflation. Choose the delivery format that fits your product roadmap.

Fixed Scope

MVP Launch Sprint

For early-stage founders and product teams who need to take a validated concept to a high-polish, production-ready release.

$4,800 one-time investment
3–4 Weeks to Production
  • Complete UI/UX design system & interactive Figma prototype
  • Full-stack web application (Laravel/Node + React/Vue) or Flutter mobile app
  • PostgreSQL relational schema with indexing, RLS, and automated migrations
  • Enterprise authentication (OAuth2, Passkeys) and Stripe/Paddle billing
  • Docker deployment with SSL, automated daily backups, and health alerts
  • 100% intellectual property & Git repository transfer
Scope Your MVP Sprint

Includes 30 days post-launch warranty support

Most Popular

Dedicated Product Sprint

For growing software companies and scaling SaaS teams needing dedicated senior engineering capacity and architectural leadership.

$3,400 / month (or $1,700 / sprint)
Bi-Weekly Agile Sprints
  • Dedicated senior engineering capacity led by Md. Sabbir Al Mamon
  • Continuous bi-weekly sprint delivery with automated test coverage
  • Direct communication via private Slack/Discord channel (zero agency lag)
  • PR code reviews, database query profiling, and security audits
  • Daily Git commits and interactive staging preview environments
  • Cancel, pause, or adjust sprint velocity anytime with 14 days notice
Book Dedicated Sprints

Limited client slots per quarter for maximum focus

Deep Dive

Architecture & Security Audit

For established platforms struggling with slow database queries, technical debt, security compliance, or scaling bottlenecks.

$2,400 one-time investment
1–2 Weeks Comprehensive Analysis
  • Deep PostgreSQL profiling: slow query analysis, connection pooling, and locks
  • Security audit: RBAC verification, secrets audit, and OWASP compliance review
  • Infrastructure cost audit (AWS, Cloudflare, Docker) to reduce server spend
  • Architectural Decision Records (ADRs) and comprehensive refactoring plan
  • Actionable code patches for critical performance bottlenecks
  • Executive debrief presentation and live Q&A session with your team
Request Architecture Audit

Guaranteed discovery of high-impact optimizations

Commercial Trust

Why Ambitious Clients Choose CodexiLab

We protect your business with clear contractual terms, transparent milestones, and complete engineering accountability.

Full IP & Code Ownership: All custom code, database schemas, Figma designs, and deployment configurations are 100% owned by you upon milestone payment.

Bilateral NDA by Default: We sign strict non-disclosure agreements before discussing proprietary concepts, product roadmaps, or business data.

Direct Access to Senior Builders: You collaborate directly with lead architect Md. Sabbir Al Mamon and senior engineers—not junior account managers or sales intermediaries.

Milestone-Based Escrow or Staged Payments: Projects are structured around verifiable deliverables so you never pay for unfinished work.

30-Day Post-Launch Warranty: Every custom build includes 30 days of complimentary bug fixing and stability assurance after production release.

Engineering Philosophy

How We Build Systems That Last

Our engineering practice is rooted in domain modeling, data integrity, and observable production performance.

At CodexiLab, we do not view software development as a collection of disjointed tasks or rapid code generation. We treat every application as an enduring commercial asset. We begin by isolating core domain entities, defining strict typed boundaries, and establishing deterministic database constraints in PostgreSQL.

Whether building a real-time event pipeline, an AI retrieval engine, or a multi-tenant SaaS dashboard, we write automated integration tests for critical business workflows before shipping. Our production deployments leverage Docker containerization, zero-downtime database migrations, and edge routing to ensure seamless upgrades under live traffic.

Delivery Model

How Client Engagements Are Structured

Projects move through structured, transparent phases designed to minimize risk and maximize delivery velocity.

1. Technical Discovery & Architecture Spike: We audit existing systems, scope domain boundaries, and build proof-of-concept prototypes for high-risk technical unknowns.

2. Design System & API Contract Definition: We draft high-fidelity Figma components alongside concrete OpenAPI / JSON schemas to decouple frontend and backend development.

3. Bi-Weekly Agile Sprints & Live Previews: Development proceeds in focused 2-week iterations with automated test runs, static analysis checks, and interactive staging deployments.

4. Security Hardening & Penetration Verification: We audit role-based access controls, sanitize input vectors, review dependency vulnerabilities, and optimize database queries before production launch.

5. Production Release & Knowledge Handoff: We execute zero-downtime releases, configure automated telemetry alerts, and deliver complete repository ownership and documentation to your internal team.

Next Step

Need help translating this into a product roadmap or delivery plan?

Start with a project conversation and CodexiLab can scope the right path.

Talk to CodexiLab