Custom Software Development for Ambitious Product Teams
Senior engineering team building production custom software. Fixed-scope from $11,000 or dedicated team retainer from $9,000 per month. GDPR-ready. Shipped in 8–16 weeks.
We tell you the right engagement model and an honest cost range. No sales follow-up if we're not the right fit.
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Who we've built for.
How we work
- What we build
- B2B SaaS · Internal tools · Marketplaces · Logistics platforms · AI-enabled products · Mobile apps
- Engagement
- Fixed-scope project · Dedicated team retainer · Fractional CTO-led build
- Stack
- Next.js · React · Node.js · Python · PostgreSQL · AWS · Stripe · LangChain
- Pricing in USD
- Fixed-scope from $11,000 · Team retainer from $9,000/month · CTO-led bundled with retainer
- Compliance
- GDPR · SOC 2 · ISO 27001 · EU data residency · zero-retention APIs for AI features
- Response time
- Under 45 minutes during business hours
You already know what custom software is. You're here to find a team that ships. The rest of this page covers what we build, how we work, what it costs, and the work we've shipped.
Industries we serve hardest
- Finance and fintechPayments, regulated workflows, risk and compliance platforms.
- Retail and e-commerceCustom commerce backends, marketplace connectors, inventory automation.
- Logistics and supply chainWMS, TMS, custom inventory and order management for 3PLs and brand operators.
- Healthcare and life sciencesRegulated workflows under HIPAA, GxP, and EU AI Act high-risk tier.
- ManufacturingIIoT, MES integrations, supply-chain control towers.
Recent builds — named clients
Multi-source data pipeline plus Stripe billing. Production B2B SaaS.
Read case study →
Logistics build with carrier integrations and tracking.
Read case study →
Custom platform with regulated billing flows.
Read case study →
Regulated fintech workflow tool.
Read case study →What we ship
B2B SaaS platforms
Customer-facing apps with billing, multi-tenant architecture, admin tooling, and the integrations your buyer expects.
Internal tools and ops dashboards
One workflow tool that replaces three spreadsheets and two SaaS subscriptions.
Marketplaces
Two-sided platforms with onboarding, listings, payments via Stripe and Adyen, and trust-and-safety workflows.
Logistics and supply-chain systems
WMS, TMS, custom inventory and order management for 3PLs and brand operators.
AI-enabled products
RAG copilots, agentic workflows, custom LLM integrations. AI is first-class.
Legacy modernisation
Strangler-fig migrations off .NET, Rails, PHP, or heavy SAP customisation. No big-bang rewrites.
Capability detail: full-stack development, custom web applications, progressive web apps, B2B development, AI-powered software.
Three engagement models
Fixed-scope project (8–16 weeks)
From $11,000
- Best when the brief is clear.
- We scope, quote, and ship for a fixed price in USD.
- Milestones tied to deploys.
Dedicated team retainer (rolling monthly)
From $9,000 / mo
- Best when the roadmap is open.
- Two to five engineers, a designer, a tech lead.
- 90-day minimum.
Fractional CTO-led build
Bundled with retainer
- Best for non-technical founders or companies between CTO hires.
- Our tech lead owns architecture and hiring decisions.
- Bundled with the team retainer.
How we work — six phases
- Discovery (1–2 weeks). Stakeholder interviews, current-state audit, success metric, architecture decision record.
- Design (1–3 weeks). UX wireframes, system design, API contracts, data model, security review.
- Build (4–10 weeks). Two-week sprints. Staging deploys every sprint. Weekly demo.
- Test and harden (1–2 weeks). Automated tests, load testing, security scanning, accessibility audit.
- Launch (1 week). Production deploy, monitoring, handover docs, ops runbook.
- Stabilise (2–4 weeks post-launch). Bug fixes, performance tuning, training.
The stack we ship on
- Frontend: React, Next.js 14, TypeScript, Tailwind.
- Backend: Node.js, FastAPI (Python), Go for high-throughput.
- Database: PostgreSQL by default.
- Hosting: AWS, Azure, or GCP — region picked for data residency.
- Auth: Clerk, Auth0, WorkOS.
- Payments: Stripe end to end, plus regional rails (iDEAL, SOFORT, Bacs, ACH) where the build needs them.
GDPR, SOC 2, ISO 27001 — built in
Every build ships GDPR-compliant from Day 1. We deliver a data inventory, a cookie consent layer, a data-subject-request workflow, a 72-hour breach-notification plan, data-flow diagrams, and a privacy notice that reflects the real data flow. SOC 2 Type II and ISO 27001 work is a structured 6–12 month add-on with a partner audit firm. We don't issue certificates. We build software architecture that passes audit. For systems embedding AI we add EU AI Act risk-tier classification and the documentation pack.
Pricing
Internal tool (4–8 weeks)
From $11,000
- Replaces a spreadsheet or three-SaaS-tape with one workflow tool.
Mid-market B2B SaaS v1 (10–14 weeks)
From $38,000
- Customer-facing app with Stripe Billing, two user roles, GA4, admin.
Enterprise replatform (16–24 weeks)
From $55,000
- Multi-tenant, multi-role, regulated workload, audit-grade logging.
Team retainer
From $9,000 / mo
- Two to five engineers plus tech lead.
- 90-day minimum.
Legacy modernisation — no big-bang rewrites
About a third of our work is replatforming legacy systems. We use strangler-fig migrations. You keep running on the old system while we replace it module by module. Feature flags control every cutover. Rollback is one config change away.
FAQ
2026 ranges: $11,000 for an internal tool. From $38,000 for a mid-market B2B SaaS v1. From $55,000 for an enterprise replatform. Fixed pricing locked at the scoping call.
Internal tool: 4 to 8 weeks. Mid-market B2B SaaS v1: 10 to 14 weeks. Enterprise replatform: 16 to 24 weeks. Multi-phase migration with rollout: up to 36 weeks.
Fixed-scope is better when requirements are clear and scope is bounded. T&M retainer is better when discovery will reveal scope, which is true of most real builds. We default fixed-scope for v1 and retainer for ongoing work.
Configure when the platform handles 90%+ of your workflow without heavy customisation. Build custom when the missing 10–20% is a competitive edge, or when configuration consultants quote more than 12 months of a small build.
AWS by default in the region matching your data-residency requirement — Frankfurt or Stockholm for EU workloads, US-East for North America, AP-Southeast for APAC. Azure or GCP when the client mandates.
Yes, with a one-week code audit at fixed cost. About 40% of takeovers are salvageable. The other 60% we tell the founder honestly that a strangler-fig rewrite is faster.
Yes. Maintenance retainers start at $2,200 per month covering bug fixes, security patching, dependency upgrades, and small feature additions.