01
Project-based
Clear scope, fixed deadline
You have a brief, wireframes, or a clear feature list. We quote fixed-price + fixed-timeline, sign a contract, and ship by milestone.
MVP / v1Web platformMobile appInternal tool
Per-project quoteBooking Q3.2026 projectsFrom idea
From idea
to production.
HASoftware is an engineering studio building and operating production software since 2020, focused on infrastructure, automation, and mobile. We partner with startups and businesses that need an engineering team with real production experience.
Domains
Web · SaaSMobile AppBackend · APIBrowser AutomationDevOps · Infra
services/job.service.tsProduction
// Job queue pipeline · production internal
import { Injectable } from "@nestjs/common";
import { JobQueue } from "@/queue";
@Injectable()
export class JobService {
constructor(private queue: JobQueue) {}
async enqueue(payload: JobPayload) {
const job = await this.queue.push({
...payload, priority: "realtime",
});
return { jobId: job.id, eta: "~3s" };
}
}mainTypeScript 5.7
Ln 12, Col 24
How we engageFour ways
Four ways
to work with us.
We accept engineering work in multiple shapes, from fixed-scope projects to long-term embedded engineers. Pick the shape that fits your scope and operating style.
02
Time & Material
Evolving scope, needs flexibility
Billed hourly or per 2-week sprint. Best for exploratory projects that need to pivot mid-flight. Transparent invoices and weekly reports.
2-week sprintsWeekly reportsFlexible scopeCancel any time
Hourly / per sprint03
Embedded Engineer
Long-term capacity expansion
Our engineer joins your team full-time or part-time, using your tooling and process. Best when you need to scale a team fast without direct hires.
Senior / Mid levelOnsite or remote3+ month commitBackup on PTO
Monthly retainer04
Technical Consulting
Need advice, audit, code review
You have your own team but want input from engineers who've shipped production. Architecture review, security audit, performance tuning, or stack consulting.
Architecture reviewCode & security auditPerformance auditTech stack consult
Per session / engagementDomains we acceptSix domains
Six domains
of deep expertise.
Each domain below is backed by a HASoftware production system. Deep expertise, and we don't take work outside our specialty.
iOS Distribution & Code Signing
.ipa signing pipelines, Apple Developer cert provisioning, app distribution outside the App Store for enterprise and testing.
- P12 / Mobileprovision
- Signer API
- Enterprise distribution
Email Infrastructure
Email systems for marketers, devs, and testing: temporary mailboxes, programmatic inbox, IMAP/SMTP gateways processing millions of emails per month.
- IMAP/SMTP gateway
- Disposable inbox
- API access
Browser Automation
Multi-account browsers with fingerprint isolation, automation across ad platforms. Headless and GUI modes.
- Fingerprint profiles
- Anti-detect
- Ads automation
License & Activation
License issuance and verification for desktop and mobile software. Machine-bound, time-bound activation, usage tracking.
- Machine binding
- Trial / subscription
- Anti-piracy SDK
DevOps & Datacenter
Self-operated servers and datacenter: auto-scaling, monitoring, deploy pipelines. We self-host most services rather than relying on third-party cloud.
- Self-hosted infra
- CI/CD
- Monitoring & alerting
Productivity Apps
Personal and team productivity apps: scheduling, expense tracking, task management. Mobile-first, offline-first, cloud-synced.
- iOS / Android
- Offline-first
- Multi-device sync
Selected WorkProduction systems,
Production systems,
selected.
Summary of scale, technology, and measurable results from systems HASoftware has built and operates. Customer and product names withheld for confidentiality. Details shared under NDA when needed.
iOS · Infrastructure
iOS certificate signing pipeline at million-user scale
P12 / Mobileprovision certificate provisioning and signing for iOS apps. Integrates with Apple Developer API, priority queue with second-grade SLA.
1M+
Cumulative users
~3s
Sign time
99.95%
Uptime
NestJSRedis QueueApple Developer APIPostgreSQL
iOS · Distribution
.ipa distribution platform for enterprise
Hosts and distributes iOS apps outside TestFlight, supports enterprise internal distribution and testing. Version, rollback, and certificate revocation management.
K+
Active orgs
OTA
Install
Multi-tenant
Architecture
Next.jsS3-compatiblePlist signingCDN edge
Email · Infrastructure
Email gateway processing millions of mails/month
Programmatic mailbox system: disposable inbox, IMAP/SMTP gateway, real-time email content API. Custom spam filtering and rate limiting.
M+
Email/month
<1s
Inbox latency
Tự host
MTA infra
PostfixDovecotNode.jsRspamd
Browser · Automation
Multi-account browser with fingerprint isolation
Manages multiple profiles on the same machine with separate fingerprints, WebGL, Canvas, and font hashes. For marketing and growth teams managing many accounts.
100+
Profiles / device
Anti-detect
Mode
Cross-OS
Support
Chromium forkC++ patchesElectronWebRTC override
Licensing
License & key management for software
License provisioning and verification for desktop and mobile software. Machine-bound, time-bound activation, usage tracking. One-line SDK integration for .NET, Swift, Java.
Realtime
Activation
Multi-SDK
Integration
Anti-piracy
Security
GoPostgreSQLJWT signingNative SDKs
Productivity
Offline-first productivity app suite
iOS/Android apps for scheduling and expense tracking, fully offline with conflict-free sync when online. Multi-device sync at smooth 60fps.
60fps
Performance
Offline
First-class
CRDT
Sync
FlutterSQLiteYjs / CRDTCustom sync server
TechA modern stack,
A modern stack,
picked for the problem.
We don't 'attach' technology. We pick a stack that fits scale, growth speed, and your operational capability, favoring stability, mature documentation, and strong community.
Frontend
Next.jsReactVueNuxtTypeScriptTailwind
Backend
Node.jsNestJS.NETJava SpringGoPython
Mobile
FlutterReact NativeSwiftKotlin
Data & Cloud
PostgreSQLMongoDBRedisAWSAzureDockerKubernetesKafka
2020
Founded
1M+
Total users
M+
Emails / month
24/7
Uptime
EngagementNeed engineering help?
Need engineering help?
Let's start with a chat.
Need to build infrastructure, automation, or integrate APIs we've mastered? Send a brief and we'll respond within 48 hours.
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