Our Services

AI-Native Engineering for US Startups

Ship AI products, SaaS, and commerce platforms faster — without the cost of a full in-house team. SOC 2 aware, HIPAA-friendly, USD pricing.

50+
US Clients
$10M+
ARR Shipped
11 wks
Avg MVP Time
6
Service Areas
Why DevSimplex US

Built for US Founders & Agencies

We understand US market requirements — from HIPAA and SOC 2 to USD pricing and EST/PST timezone overlap.

SOC 2 & HIPAA Aware

We build with compliance in mind from day one. Security controls, audit trails, and HIPAA-friendly data handling baked into the architecture.

USD Pricing, No Surprises

50+ US clients shipped. Fixed-price sprints and monthly retainers in USD. No currency risk, no scope creep invoices.

AI-Native Engineering

We don't just integrate AI — we architect it. RAG pipelines, multi-agent systems, and LLM-powered product features from engineers who've shipped them in production.

US Timezone Overlap

4–6 hours of daily overlap with US East/West Coast. Live standups, same-day Slack, and weekly video check-ins.

Senior Engineers Only

No juniors on your project. Every engineer has 5+ years of production experience with the stack we recommend.

11-Week MVP Track Record

Our structured sprint process gets you from spec to production-deployed MVP in an average of 11 weeks.

Services

What We Build

Six engineering capabilities, one focused team

AI & Agentic Systems

RAG Pipelines · Multi-Agent · LLM Integration

Starting from
From $15,000
RAG & Vector SearchMulti-Agent OrchestrationLLM Integration & Fine-TuningAI Product Architecture

End-to-end AI product engineering for US founders. We build RAG pipelines, multi-agent workflows, LLM integrations, and production AI features — not just demos.

Benefits

Production-Ready
Latency Optimized
Eval Frameworks
OpenAI / Anthropic / OSS
Learn More

Full-Stack SaaS Development

Next.js · NestJS · PostgreSQL

Starting from
From $15,000
Next.js App RouterNestJS / Node APIsMulti-Tenancy & AuthStripe Billing

Build your SaaS MVP to production. We own the full stack — auth, billing, multi-tenancy, dashboards, and APIs — so you can focus on your product.

Benefits

11-Week MVP Sprint
Type-Safe Stack
CI/CD from Day 1
SOC 2–Ready Patterns
Learn More

Headless Commerce

Shopify · Next.js · Custom OMS

Starting from
From $12,000
Headless Shopify / Shopify PlusNext.js StorefrontOrder ManagementMarketplace Integrations

High-performance storefronts and DTC platforms for US brands scaling past $1M ARR. Headless Shopify, custom checkout flows, and marketplace integrations.

Benefits

Sub-2s LCP
Conversion Optimized
Composable Stack
$1M+ ARR Ready
Learn More

Platform & DevOps

AWS · GCP · Kubernetes · Terraform

Starting from
From $8,000/mo
AWS / GCP ArchitectureKubernetes & HelmTerraform IaCObservability & SLOs

Infrastructure that scales with you. We build cloud-native platforms, automated CI/CD pipelines, and production-grade observability for US engineering teams.

Benefits

99.9% Uptime SLA
Auto-Scaling
Cost Optimized
SOC 2 Controls
Learn More

Security & Compliance

SOC 2 · HIPAA · PCI · CCPA

Starting from
From $10,000
SOC 2 Control ImplementationHIPAA Data ArchitecturePCI-Conscious PaymentsCCPA / Privacy Engineering

Security-conscious engineering for US startups in regulated verticals. HIPAA-friendly data handling, SOC 2 control implementation, and PCI-conscious payment flows.

Benefits

Audit Trail Built-In
Encryption at Rest/Transit
Pen Test Ready
Security Reviews
Learn More

Fractional CTO & Team Augmentation

Tech Leadership · Staff Augmentation

Starting from
From $8,000/mo
Architecture ReviewsTechnical Due DiligenceTeam AugmentationWhite-Label Delivery

Senior engineering leadership and staff augmentation for US startups and agencies. We embed with your team, align on architecture, and ship alongside you.

Benefits

NDA-First
US Timezone Overlap
Senior Engineers
Weekly Reporting
Learn More
How We Work

From Call to Shipped

Our 6-step process gets you from first conversation to production in weeks

01

Discovery Call

Free 30-min call to understand your product, timeline, and goals. No pitch — just a conversation.

02

Scoping & Proposal

We scope the project, agree on deliverables, and send a fixed-price or retainer proposal within 48h.

03

Sprint Kickoff

We onboard in days, not weeks. Environment setup, architecture decisions, and first commit by day 5.

04

Bi-Weekly Demos

We demo working software every two weeks. You see real progress and give feedback in sync with your US timezone.

05

Ship & Deploy

Launch with zero-downtime deployments, runbooks, and handover docs. Your team stays in full control.

06

Ongoing Support

Stay on retainer for maintenance, feature work, or on-call support. Cancel any month.

FAQs

Frequently Asked Questions

Common questions from US founders and agencies

1How quickly can you start?

We can kick off within 1–2 weeks of signing. For urgent MVP sprints with clear requirements, we've mobilized in under a week.

2Do you work in US timezones?

Yes. Our senior engineers maintain 4–6 hours of overlap with US Eastern/Pacific time daily. You get same-day responses, live standups, and real-time Slack access.

3How does pricing work?

We offer fixed-price project sprints (starting $15K) and monthly retainers (starting $8K/mo). All prices are in USD. No hidden costs, no VAT.

4Do you sign NDAs?

Always. We sign mutual NDAs before any detailed technical discussions. For agency clients we operate fully white-label — your clients never know we exist.

5Are you HIPAA / SOC 2 aware?

Yes. We build HIPAA-friendly data architectures, implement SOC 2 controls, and design PCI-conscious payment flows. We partner with US compliance consultants when certification is needed.

6Can you take over an existing codebase?

Yes. We do code audits, legacy rewrites, feature additions, and performance optimization on existing projects. We'll assess the codebase and give you a clear plan.

Have more questions?

Talk to Us
Get Started Today

Ready to Ship Faster?

Book a free 30-minute discovery call. No pitch, no commitment — just a conversation about what you're building.

50+ US clients shipped · Response within one business day