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Custom software development for New York — Ethersofts

Software Development Company in New York

New York does not wait. We build fintech, media, and adtech platforms for NYC companies that need bank-grade security, ad-tech-grade speed, and a partner who keeps up with the pace of the city.

Eastern-time deliveryBank-grade securityFixed-price scoping
ReactNext.jsNode.jsTypeScriptPythonGoNestJSPostgreSQLDockerKubernetesAWSAzureGraphQLRedisPrismaFastAPIFlutterReact NativeReactNext.jsNode.jsTypeScriptPythonGoNestJSPostgreSQLDockerKubernetesAWSAzureGraphQLRedisPrismaFastAPIFlutterReact Native

ET

Time-zone aligned

SOC 2

Audit-ready builds

24h

Response time

100%

Code ownership

Built for the demands of the New York market

There is no slower way to lose a New York client than to move at someone else's pace. NYC companies — whether a fintech off Wall Street, a media platform in Midtown, or an adtech startup in Flatiron — run on tight deadlines and high stakes. We staff Eastern-time hours specifically so your standup, your review, and your blocker all get handled inside the same business day.

How Ethersofts delivers software for New York clients
Eastern-time deliveryBank-grade securityFixed-price scoping
01

The work itself reflects the market. New York fintech means security that survives a real audit: encryption everywhere, full audit trails, role-based access, PCI and SOC 2 readiness built in from sprint one. New York media and adtech mean systems that stay fast and stable under serious traffic, with analytics your team can actually act on. We have built both.

02

And we do it without the agency theater. No padded retainers, no account managers who cannot answer a technical question. You get senior engineers, a fixed-price scope after discovery, weekly working demos, and full ownership of every line of code when the engagement ends.

Why New York companies choose Ethersofts

What it takes to keep up with the city — and your auditors.

01

Same-day, same-zone collaboration

Engineers on Eastern business hours. Your morning standup is our morning standup — decisions and blockers clear before lunch, not next day.

Included on every engagement
02

Wall Street-grade security

Encryption at rest and in transit, immutable audit logs, granular RBAC, and PCI / SOC 2 readiness designed in — so you pass the security questionnaire that kills most vendor deals.

Included on every engagement
03

Speed without shortcuts

Adtech and media workloads demand sub-100ms responses at scale. We build for that from the architecture up, not by patching after launch.

Included on every engagement
04

No agency overhead

You talk directly to senior engineers. Fixed-price scope, weekly demos, full code ownership — none of the markup that comes with a layer of account managers.

Included on every engagement

Domain expertise
across 6 verticals

The sectors that define the city — and the software they run on.

Fintech & Capital Markets

Trading tools, payment rails, lending platforms, and reporting systems built to financial-grade security.

Media & Publishing

Content platforms, paywalls, and high-traffic editorial systems that stay fast under load.

Adtech & MarTech

Real-time bidding infrastructure, attribution, and analytics dashboards engineered for low latency.

Real Estate & PropTech

Listings, leasing, and property-management platforms for one of the world's densest markets.

Retail & DTC

Headless commerce and order systems built to handle NYC-scale demand spikes.

AI & Data

LLM features, RAG pipelines, and analytics layered on top of your existing data stack.

How we work with New York clients

A remote model tuned for the speed and standards of NYC.

01

Eastern business hours

Core collaboration windows align to ET, so reviews and decisions never wait for an overnight handoff.

02

Security-first delivery

We build to pass your enterprise security review the first time — audit logs, RBAC, and encryption as defaults.

03

Fast iteration

Two-week sprints with a working demo every Friday. You see and test progress weekly, not at the end.

04

US-region infrastructure

Deployed to US-East AWS, Azure, or GCP for latency and residency that suits New York operations.

What New York clients say

“We are a fintech — security questionnaires kill most of our vendor relationships before they start. Ethersofts built audit logging and RBAC in from day one and we cleared our enterprise review on the first pass. The Eastern-time overlap meant we never lost a day.”
R

Rachel Stein

CTO, Ledgerline

New York, NY

“Our publishing platform was buckling during traffic spikes. They re-architected it for load, and our page times dropped sharply during our biggest month. They moved at the pace we needed.”
T

Tomás Rivera

Head of Engineering, Midtown Media Group

New York, NY

“Real-time bidding is unforgiving — milliseconds cost money. Their team understood the latency requirements immediately and delivered infrastructure that held up under production volume.”
P

Priya Nair

VP Product, Flatiron Adtech

New York, NY

New York software development questions

If yours is not here, reach out — you get a real answer from an engineer within 24 hours, not a sales pitch.

Frequently asked questions

Yes. We staff core collaboration windows on Eastern time, so standups, reviews, and blocker resolution happen inside your business day. The async-heavy work runs while you are offline.

Yes — it is one of our specialties. We design encryption at rest and in transit, immutable audit logs, granular role-based access, and PCI / SOC 2 readiness from sprint one. The goal is to pass your enterprise security questionnaire on the first attempt.

We do. We architect for sub-100ms responses and traffic spikes from the start — caching strategy, database design, and infrastructure all built for the load, not patched afterward.

We deploy to US-East regions of AWS, Azure, or GCP for low latency to New York and US data residency. We can match whatever your compliance and customers require.

You talk directly to senior engineers — no account-manager layer or agency markup. You get a fixed-price scope after discovery, weekly demos, and full ownership of the code, typically at a meaningfully lower cost than a Manhattan agency.

You do, completely. Source code, infrastructure configuration, documentation, and the full Git history transfer to you on final payment.

Ready when you are

Ready to build at
New York speed?

Tell us what you are building. We reply within 24 hours on Eastern time with a clear, fixed-price plan — no agency runaround.

Reach Ethersofts across every channel — chat, email, call, video, and more
Free consultation24-hour responseNDA on request