Senior Engineers · US & UK Timezone · Remote-First
Build Scalable SaaS,
AI & Enterprise Products
That Grow Without
Costly Rewrites.
We help startups and enterprises design, build, and modernize cloud-native platforms that scale securely and accelerate business growth.
Specialist Technologies
AWS.NET 8Node.jsNext.jsStripeAI / LLMs
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Years Experience
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Solutions Delivered
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Industries Served
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Years Experience
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Solutions Delivered
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Industries Served
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AzureInfra
DockerInfra
KubernetesInfra
TerraformInfra
NginxInfra
GitHub ActionsDevOps
.NETCore
Node.jsCore
TypeScriptCore
ReactFrontend
AngularFrontend
Next.jsFrontend
GraphQLCore
PostgreSQLData
RedisData
KafkaData
MongoDBData
OAuth2Security
JWTSecurity
StripeFintech
PayPalFintech
XeroFintech
AzureInfra
DockerInfra
KubernetesInfra
TerraformInfra
NginxInfra
GitHub ActionsDevOps
.NETCore
Node.jsCore
TypeScriptCore
ReactFrontend
AngularFrontend
Next.jsFrontend
GraphQLCore
PostgreSQLData
RedisData
KafkaData
MongoDBData
OAuth2Security
JWTSecurity
StripeFintech
PayPalFintech
XeroFintech
Built for the Toughest Requirements.
We engineer SaaS and fintech platforms that stay up, stay secure, and stay fast — no matter how fast you grow.
System_Sync
PSCogxora
Scales When You Do
Your infrastructure grows by design, not by accident — from 100 to 100,000 users with predictable performance.
Secure From Day One
Zero-Trust security models built in from the start — no expensive retrofits when you hit SOC2 or PCI-DSS requirements.
Always-On Reliability
Event-driven, fault-tolerant systems designed for 99.9%+ uptime — because downtime costs you customers.
Lower Cloud Bills
Infrastructure as Code with cost-optimization built in. Our clients average 40% reduction in cloud spend.
Client Work · 2022–2026
Real Projects. Real Results.
Every engagement below involved a real client challenge, a fixed timeline, and a measurable outcome.
Live in Production
US Market · Award-Winning
Sports SaaS Payment & Cloud Platform
Delivered a cloud-native multi-tenant SaaS backend on AWS with .NET 8, Stripe, Xero, and Plaid. Fully automated financial operations and achieved zero-downtime deployments.
AWS.NET 8StripeXero
ResultZero Downtime
Scaling
Seed Stage · New York, US
Multi-Tenant SaaS Platform
Built a zero-downtime multi-tenant backend from scratch. The platform scaled from 0 to 40,000 users in 4 months with 99.97% uptime and no infrastructure incidents.
KubernetesPostgreSQLNext.jsAWS
Result40K Users Served
Operational
Early Stage · Remote / UK
AI Data Ingestion Pipeline
Designed an event-driven vector data lake capable of ingesting and labeling millions of records per hour for real-time ML model training.
PostgreSQLDockerNode.jsPinecone
Result2.4PB Processed
Proven Track Record
Numbers that speak for themselves.
15+ years of engineering discipline, now available to US & UK startups and scale-ups.
EXP_01
0+
Years of Senior Experience
ARC_02
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Architectures Delivered
UPT_03
0%
Uptime Design Target
CST_04
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Avg. Infrastructure Cost Saved
“PSCogxora transformed our legacy infrastructure into a high-performance engine in less than 6 months. Our API latency dropped from 800ms to under 20ms.”
CTO, Series A Fintech
London, UK · Verified Client
“Finally an engineering partner who speaks business AND architecture. They shipped our MVP in 6 weeks, on budget. We've since scaled to 40K users without a single outage.”
Founder, SaaS Platform
New York, US · Verified Client
Who you work with
Senior-only. No juniors, no account managers.
You work directly with a systems architect who has shipped production systems for 100M+ user platforms. Every engagement is personal, async-friendly, and outcome-focused.
The Person Behind the Work
Message from the Founder
Ashish Sonar
Founder & Chief Architect
PSCogxora Technologies
Connect on LinkedIn15+ Years
Senior Architecture
US & UK Clients
Remote-first delivery
50+ Products
Shipped to production
“At PSCogxora, we focus on building software that supports long-term growth rather than quick fixes.”
Ashish Sonar · Founder & Chief Architect
15+ years designing and shipping high-stakes SaaS and fintech platforms — systems that have served 100M+ users globally. PSCogxora exists to give US and UK startups direct access to that same calibre of engineering, at a price that fits where they are today.
Deterministic Scaling
Systems that grow by design
Security by Default
Zero-trust from day one
Architecture as ROI
Avg. 40% infra cost saved
Free Resource · 50 Checks · 8 Pages
Is Your SaaS Architecture Production-Ready?
The same 50-point checklist our senior engineers use on every SaaS and fintech engagement — covering architecture, data, payments, security, performance, and DevOps.
PSCogxora-SaaS-Architecture-Checklist.pdf
FREE
6 Architecture Domains
Architecture Foundation
7 checks
Multi-Tenant Data Layer
7 checks
Payment & Billing
8 checks
Security & Compliance
9 checks
Performance & Scalability
8 checks
Deployment & Reliability
8 checks
Sample items (50 total)
Implement Row-Level Security for tenant data isolation
Use Stripe webhook signatures — never trust raw events
Short-lived JWTs + refresh tokens (15–60 min expiry)
Circuit breakers for all external service dependencies
Blue/green deployments for zero-downtime releases
+ 45 more checks inside...
Enter work email to unlock
8 Pages
Your score means...
32 / 32
Production Ready
24–31
Launch with Care
16–23
Pre-Launch Risk
< 16
Book a Sprint
Free download — instant PDF
Get the checklist free.
Score your stack today.
50 checks across 6 domains. Takes 15 minutes. Could save months of painful rewrites.
Used by 80+ engineering teams before production launch
No spam, ever
Work emails only
Instant PDF
We may follow up personally — no automated sequences.
What We Build
Engineering services
priced for startups.
Senior-level output at half the cost of a US/UK agency. Fixed scope, clear milestones, no surprises.
View All Services→
SRV-01Most Popular
SaaS Backend Engineering
We build scalable, cloud-native backends for SaaS products — from MVP to multi-region production. You ship faster, we make sure it stays up.
Multi-tenant architecture
REST & GraphQL APIs
CI/CD pipeline setup
Timeline
4–8 weeks
SRV-02Fintech
Fintech Platform Engineering
Payment rails, ledger systems, and compliance-ready infrastructure for fintech products. PCI-DSS, SOC2, and zero-trust security built in from day one.
Payment integration (Stripe, PayPal)
PCI-DSS compliance
Event-driven ledger systems
Timeline
6–12 weeks
SRV-03AI/ML
AI & LLMOps Infrastructure
Production-ready AI pipelines, vector databases, and model serving infrastructure. We turn your AI prototype into a reliable, scalable product.
Vector DB tuning (Pinecone, Weaviate)
LLM API integration
GPU orchestration & cost control
Timeline
4–10 weeks
How we engage
Pick the model that fits your stage.
Download the full pricing guide (free) →
Includes all three engagement models with full pricing breakdown
PSCogxora · Confidential · 2026
Service & Pricing Guide
Senior-level SaaS & Fintech Engineering for US & UK Startups
Engagement Models · 3 options
Service Pricing · 4 areas
Process Timeline · 4 steps
Unlock with work email
5-Page PDF
What's inside
Three engagement models with full pricing breakdown
Per-service scope & timeline guide (SaaS, Fintech, AI)
Our 4-step process from call to production
Client results & case study highlights
How to get started — 3 clear next steps
Used by 50+ SaaS teams to scope their next engineering sprint
Free download
Get the full pricing guide
Enter your work email to unlock the full 5-page Service & Pricing Guide — including all engagement models, service breakdowns, and how to get started.
No spam, ever
Work emails only
Instant PDF download
We may follow up personally — no automated sequences.
How it works
From first call to production in weeks.
No lengthy onboarding, no account managers, no mystery timelines. Here is exactly how we work together.
01
30 minutes
Free Strategy Call
We start with a free call to understand your goals, current stack, and timeline. No sales pitch — just an honest assessment of what you need and whether we're the right fit.
Deliverable
Clear scope + honest recommendation
02
2–3 days
Scoped Proposal
We write a fixed-scope proposal with clear milestones, deliverables, and a fixed price. You know exactly what you're getting before you commit a single dollar.
Deliverable
Fixed-price proposal document
03
4–12 weeks
Build & Ship
We get to work — daily updates via Slack, weekly video check-ins, and a staging environment you can access throughout. No surprises, no scope creep.
Deliverable
Production-ready system + documentation
04
Optional
Ongoing Support
After delivery, we offer monthly retainer options for continued engineering support — from scaling help to feature additions. You can also hand off cleanly if you hire in-house.
Deliverable
Retainer or clean handover
Free · No obligation
Is your backend holding back your growth?
Our free Architecture Health Check identifies scaling bottlenecks, security gaps, and infrastructure cost leaks — before they become your next production incident.
Scaling ceiling analysis
Security gap review
Infrastructure cost audit
Tech debt assessment
Delivered via email within 48 hours · Used by 50+ SaaS teams
System Design & Infrastructure11 min read
The System Design Lifecycle: Discovery to Global Scale
11 min read READ
Fintech & Backend Engineering7 min read
Implementing the Saga Pattern: Choreography & Orchestration
7 min read READ
Backend & Performance5 min read
Why Your API is Slow (And How to Fix It)
5 min read READ
Common Questions
Frequently Asked Questions
Everything US & UK clients typically want to know before booking a strategy call.
Still have questions? We respond within 24 hours.
Book a Free 30-Min CallReady to build something that actually scales?
Book a free 30-minute strategy call. We'll review your current stack, identify the biggest bottlenecks, and give you a clear plan — no sales pitch, no obligation.
US EST & UK GMT timezone friendly Async updates via Slack or email Currently accepting Q3 2026 projects
No commitment · Respond within 24 hours · NDA available on request