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 Limassol and 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.
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.
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.
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.
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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.
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.
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.
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 across Limassol and Yerevan, NPS 71 across 120+ delivered projects.