A product, not a deck
We deliver working software in production every two weeks, fully observable, with feature flags and rollback paths from sprint one.
Services
Custom Software Development Services for US & EU Mid-Market and Enterprise Teams
YuSMP Group delivers custom software development services to US and EU companies that need senior engineering, predictable delivery, and an audit-ready compliance posture. Our 80+ engineers in Yerevan run a CET workday with a 9 AM–1 PM ET overlap, building bespoke web, SaaS, and platform software under GDPR-aligned, SOC 2 Type II in-progress controls.
9+Years in business
80+Senior engineers on staff
120+Projects delivered
71Client NPS
GDPR-aligned · ISO 27001 ready · SOC 2 Type II in progress · HIPAA-capable · CCPA-acknowledged · CET workday with 9 AM–1 PM ET overlap
This page is for product, engineering, and procurement leaders evaluating a custom software development company to build, modernize, or extend a proprietary platform. We cover bespoke software development services for SaaS, fintech, healthcare, and B2B verticals across the US and EU, with engagement through Fixed Price, Time & Materials, or Dedicated Team. Typical MVPs land between 60–180k EUR; full enterprise platforms start from 250k EUR. Compliance scope covers GDPR, HIPAA-capable, PCI DSS-capable, CCPA, and ISO 27001 ready, with SOC 2 Type II in progress. See it in practice in our CheckList case study.
What You Get From Our Custom Software Development Services
Compliance built in
GDPR, ISO 27001 controls and audit trails are part of the delivery, not an afterthought added before your next certification window.
AI where it pays off
We add AI features when they cut workflow time or unlock revenue, and we keep them measurable, governed and behind clear guardrails.
Predictable delivery
Fixed sprint cadence, transparent burndown, weekly demos and one written status update. No surprises at the end of the quarter.
Senior-only engineers
Every engineer on your team has shipped US & EU production systems. No bench juniors, no shadow staff, no blind handovers between time zones.
Code you can keep
Clean architecture, full test coverage on critical paths, ADRs and documentation that lets your in-house team take over on day one.
What We Build: Custom Software Development Capabilities
One senior team, full lifecycle — from a first MVP to a modernized enterprise platform. Each capability is a dedicated practice you can scope on its own or combine.
SaaS product development
Multi-tenant SaaS with billing, RBAC and metering, built to scale from first paying customer to enterprise rollout.
SaaS development →Enterprise platforms
Complex line-of-business systems with audit logging, SSO and data residency for regulated US & EU operations.
Enterprise software →Web application development
Fast, accessible web apps on React and Next.js, wired to your data and third-party APIs from sprint one.
Web development →Mobile app development
Native and cross-platform iOS/Android apps shipped to the App Store and Google Play with offline-first UX.
Mobile development →APIs & integrations
REST and GraphQL APIs, event streams and integrations that connect legacy systems to modern services cleanly.
API development →Legacy modernization
Incremental re-architecture and cloud migration that retires risk without freezing your roadmap.
Software modernization →Technology Stack for Custom Software and SaaS Platforms
TypeScript
Node.js
NestJS
.NET 8
Python
Go
React
Next.js
PostgreSQL
MongoDB
Redis
Kafka
AWS
Azure
Kubernetes
Terraform
How We Deliver Custom Software: Discovery, Build, Run
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01
Discovery
Two to four weeks of product, technical and compliance discovery, ending in a signed scope, roadmap and fixed first-release plan.
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02
Design
Architecture, UX flows and security model are decided up front and recorded as ADRs, not invented during implementation.
-
03
Build
Two-week sprints, weekly demos, hardened CI/CD, and feature flags. Production deploys begin in sprint two, not at the very end.
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04
Run
SLOs, on-call rotation, observability and a monthly improvement plan keep the system healthy long after the first release ships.
Engagement Models: Fixed Price, Time & Materials, Dedicated Team
Fixed Price
Best for well-defined MVPs and migrations. We commit to scope, budget and date after a paid two-week discovery.
Time & Materials
Best for evolving products. Weekly invoicing, a fixed senior team, and full transparency on hours and outcomes.
Dedicated Team
A long-term squad embedded in your product organization. You manage priorities, we handle hiring, retention and delivery.
What Custom Software Development Costs — and What Drives the Price
Every build is scoped individually, but published US & EU ranges give you a realistic planning baseline before discovery. We issue a fixed estimate after a paid two-week discovery, then convert it to Fixed Price, Time & Materials, or a Dedicated Team.
MVP / First Release
€60,000–€180,000 · 12–20 weeks. A focused first version with one or two integrations, scoped to prove the model and reach real users fast.
Enterprise Platform
From €250,000 · 9–14 months. Multi-tenant architecture, role-based access, billing, audit logging and HIPAA or PCI DSS scope for regulated US & EU workloads.
Dedicated Team
Priced per squad. An embedded, long-running squad of 4–12 senior engineers under CET hours with East-Coast overlap — best for evolving roadmaps and mid-market to enterprise buyers.
Four factors move the number most: feature depth and data-model complexity, the number of third-party integrations, your compliance scope (GDPR-aligned by default; HIPAA-capable and PCI DSS-capable on request), and the engagement model you pick. Every quote reflects senior-only engineers — no offshore juniors billed as seniors.
Selected Custom Software Projects for US & EU Clients
Industrial · Manufacturing
CheckList
Offline-first ecosystem replacing paper journals for reactor process control — Android, admin, controller dashboard.
Logistics · WMS
Warehouse
Warehouse management system with web dashboards and mobile scanners — throughput up 2×, errors down 78%, US & EU ready.
Social Media · Consumer Tech
JoyJet
Production social platform — App Store + Google Play, live across the US and EU — with geo Radar, encrypted messaging and a virtual economy.
Industries We Build Custom Software For
Custom software is only as good as its fit with your regulatory and operational reality. We pair senior engineering with industry-specific compliance across US & EU markets.
FinTech
PCI DSS-scope payments, lending and wallet platforms with KYC/AML flows for US & EU retail and pro users.
FinTech software →HealthTech
HIPAA-capable, GDPR-aligned patient portals, telehealth and records systems with documented data flows and BAAs.
HealthTech software →E-commerce & Retail
Commerce platforms, headless storefronts and back-office tooling with consumer-law-aligned checkout.
Retail software →Logistics & Mobility
Warehouse, dispatch and tracking systems with offline-first mobile clients and third-party carrier integrations.
Logistics software →Why US & EU Mid-Market and Enterprise Teams Pick YuSMP
GDPR-aligned · ISO 27001 ready · SOC 2 Type II in progress · HIPAA-capable · CCPA-acknowledged
Aligned across CET & ET time zones
Our delivery centers operate on CET with East-Coast US overlap (9 AM–1 PM ET). You get same-day decisions, weekly demos and no overnight handovers.
Senior-only engineering
Average engineer has 8+ years in production. We hire for ownership, not for resumes that look pretty in a slide.
GDPR + CCPA & ISO 27001 ready
EU data residency · US options on request, DPA templates and security controls aligned to ISO 27001 with SOC 2 Type II in progress. PCI DSS and HIPAA-capable scoping available for fintech and health engagements.
For payments, lending and wallet workloads we operate inside PCI DSS scope and partner with QSAs already familiar with the YuSMP delivery model.
What clients say
Remote document signing is a legal minefield. YuSMP built both the mobile signing flow and the Symfony CRM in a single engagement, handled KYC onboarding, and delivered API docs that our compliance team cleared in days.
We publish dozens of sports articles a day. YuSMP built an editorial pipeline using a Telegram bot as the CMS — editors post once, content lands on web, iOS, and Android instantly. The architecture requires zero daily maintenance.
Frequently asked questions
How much does custom software development cost for an MVP or full platform?
For US and EU clients, YuSMP scopes MVPs between 60,000 and 180,000 EUR depending on feature depth, integrations, and compliance scope. Full enterprise platforms typically start at 250,000 EUR and scale with data model complexity, multi-tenant architecture, and audit requirements. We issue a fixed estimate after a paid discovery, then convert to Fixed Price, Time & Materials, or Dedicated Team. Pricing reflects senior-only engineers, no offshore juniors.
How long does a custom software development project take end to end?
A focused MVP with one or two integrations typically ships in 12 to 20 weeks. Mid-market SaaS or fintech platforms with role-based access, billing, and third-party APIs run 6 to 9 months to v1.0. Enterprise platforms with HIPAA or PCI DSS scope and multiple data sources plan for 9 to 14 months. We deliver in two-week sprints with a CET workday and 9 AM–1 PM ET overlap for live US calls.
Which compliance frameworks does YuSMP work under for regulated software?
We build under GDPR-aligned and CCPA-acknowledged controls by default. We are ISO 27001 ready, SOC 2 Type II is in progress, and we deliver HIPAA-capable and PCI DSS-capable engagements with documented data flows, encryption at rest and in transit, RBAC, audit logging, and DPA support. For EU clients we handle data residency in EEA regions; for US healthcare we operate under BAAs with named subprocessors.
Who owns the source code and intellectual property after the engagement?
The client owns 100% of the source code, designs, documentation, models, and derived artifacts on payment. Every Master Services Agreement includes a present-tense IP assignment, a work-for-hire clause valid under both US and EU law, NDAs with each engineer, and clean third-party license tracking. We hand over Git repositories, CI/CD pipelines, infrastructure-as-code, and a closeout package; no vendor lock-in to YuSMP infrastructure.
What engagement models do you offer, and which fits enterprise buyers?
We offer three models. Fixed Price suits scoped MVPs and well-defined modules with stable requirements. Time & Materials fits evolving roadmaps, discovery-heavy work, and AI or data initiatives where scope shifts. Dedicated Team is the default for mid-market and enterprise buyers needing a long-running squad of 4–12 senior engineers, embedded with the client's product owner under CET hours and East Coast overlap.
How is a YuSMP team composed, and how senior are the engineers?
Squads are senior-only. A typical Dedicated Team has a tech lead, 3–6 senior full-stack or backend engineers, a senior frontend engineer, a QA automation engineer, a DevOps engineer, and a delivery manager. Optional: solutions architect, security engineer, data engineer, product designer. Average tenure is 6+ years; we do not bench juniors on client projects. 80+ engineers in Yerevan, NPS 71 across 120+ delivered projects.
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