Senior .NET Capacity Without the Hire.
.NET / Azure / React — one senior engineer, zero management overhead. Add backlog items anytime. PRs in 24h. Pause or cancel anytime.
Wojciech Nowak · 10+ years · 30+ projects for global enterprise clients
What You Get
Add tasks anytime
Drop tickets in your board whenever you need. One active task at a time — deep focus, no context switching. It's how senior engineers do their best work.
PRs in 24h
Simple tasks in hours. Most work delivered within 24h. Larger work: incremental PRs, progress every week.
Zero management overhead
No standups, no status meetings, no hand-holding. Seniority means you assign — I deliver.
100% async — written only
Notion + E-mail. No calls, no video. Ever. Every decision stays searchable.
Works in your existing setup
Your GitHub/ADO repo, your Jira/Linear board. No new tools to adopt — I plug in via pull requests.
Pause or cancel anytime
No contracts, no commitment. Pause billing when you want. Cancel after any billing cycle.
Who You're Working With
Not an agency. Not a marketplace. One senior engineer — same person on every task, every PR, every decision.
Wojciech Nowak
Senior .NET Engineer
- ✓Backend, API design, cloud architecture — .NET, Azure, SQL, Service Bus
- ✓Fullstack when needed — React, Vue
- ✓Complex, multi-year enterprise systems for global clients
- ✓AI-assisted workflow — 3x throughput vs. traditional development
How It Works
No calls. No proposals. No waiting.
Send one backlog item
Pick a real ticket from your backlog. Send it over — no commitment, no payment. I respond with a written technical analysis in 24h.
Connect your workflow
Already using Jira, Azure DevOps, or Linear? I plug into your existing board and repo. Prefer a clean setup? A shared Notion board is ready immediately.
Assign tasks
Drop a ticket in your board. I pick it up and start. One active task at a time — you always know what's being worked on.
Get PRs in 24h
Simple tasks delivered in hours. Most work within 24h. Larger features: broken into incremental PRs — production progress every week.
Real Work. Real Results.
Recent examples from active client engagements. Delivered 100% async — zero calls, zero meetings.
Silent Data Loss in IoT Event Processing
Same-day deliveryApproximately 6% of sensor events were silently disappearing from the pipeline — no errors, no exceptions, no failed requests. The bug had been open for weeks with no progress.
Two independent bugs: object mutation wiping operating limits for subsequent rules, and an external API with ~6% failure rate and no retry/fallback. Both caused events to vanish without a trace.
Broken Permission Cloning in Multi-Site CMS
Same-day deliveryAfter cloning a new brand site, content editors could not create or edit Dynamic Module content. Only 1 of 6 security root categories survived the clone — every new site required manual SQL intervention.
A 6-month-old SQL exclusion was filtering out all DynamicModules permissions during cloning, based on an incorrect assumption that the CMS would auto-create them. Fix: removed the filter from 3 locations across 2 files.
Zero-Downtime APIM Migration for Payments
Same-day deliveryA live payment processing endpoint needed to migrate from direct Azure Function calls to Azure API Management with managed identity auth — with zero downtime for real financial transactions.
Full IaC via Terraform: AAD App Registration, EasyAuth V2, APIM Backend with managed identity, API definition, policy chain, Product, Subscription. Phased rollout with old and new endpoints running in parallel.
No video walkthroughs. No status calls. Everything above was communicated via PR descriptions and Notion comments.
How I Deliver in 24h
I use Claude Code — an AI coding agent — as part of my daily workflow. Same way senior devs use linters and static analysis, but an order of magnitude more powerful.
AI handles the mechanical work
Navigating large codebases, writing boilerplate, generating test cases, finding all usages of a function across dozens of files — what used to take hours now takes minutes.
Senior judgment stays human
Architecture decisions, code review, edge case identification — still mine. Claude Code is the same category as GitHub Copilot, but more capable. Every PR has my name on it.
More time on the actual problem
Because the mechanical work is faster, I spend more time on what actually matters: the bug, the integration, the design decision — not the scaffolding around it.
Every task is reviewed, tested, and shipped by a senior developer. AI accelerates execution — judgment and quality are mine.
Why Not Just Hire?
Recruiter fees → sourcing → interviews → offer → notice period → onboarding → 3 months before productive. Or: subscribe this week, ship next week.
| Async Dev | Hire a Senior | Agency | |
|---|---|---|---|
| Monthly cost | From $6,000/mo | $11k+ base + 30% benefits | $40–80k per project |
| Time to first PR | Hours / days | 2–3 months (recruit → onboard) | Weeks (scoping → kickoff) |
| Commitment | Cancel anytime | Contract, severance risk | Fixed scope, change orders |
| Management overhead | Zero — async, written only | 1:1s, standups, reviews, Slack | Calls, status updates, reports |
| Onboarding | < 1 hour (Stripe → board) | Weeks to months | Days to weeks |
| Continuity | Same senior, every task | Risk of turnover | Team rotation |
The real cost of a senior hire
Async Dev
Three ways to start
No sales calls. Pick an entry point that matches your comfort level.
Free Analysis
Free
See how I work — no commitment
- ✓Send one backlog item
- ✓Written technical analysis in 24h
- ✓Task breakdown + timeline
- ✓Fit assessment (honest yes/no)
Founding Partner
$6,000/month
2 slots left · Standard price: $7,500 after founding slots fill
- ✓Everything in the subscription
- ✓Locked-in rate as long as you stay
- ✓PRs in 24h, simple tasks in hours
- ✓Zero management overhead
- ✓100% async (Notion + E-mail)
- ✓Pause or cancel anytime
- ✓7-day fit guarantee (75% back)
- ✓In return: a short testimonial after 60 days
Async Fit Sprint
$1,500–2,500
One real ticket, full delivery
- ✓One production ticket end-to-end
- ✓PR, code review, merge
- ✓See how I work on your code
- ✓Amount credited toward subscription
Low Management Cost by Design
Seniority means you don't need to manage me. Everything in writing — searchable, permanent, no calendar overhead.
You don't manage me
10+ years of senior experience. No hand-holding, no standups, no check-ins. You assign — I deliver.
Every decision in writing
Searchable, linkable, permanent. No "what did we agree on that call?" moments.
No timezone bottleneck
Tokyo to Berlin — work crosses timezones without calendar coordination.
Your team gets its calendar back
No syncs, no status meetings. Engineering time stays engineering time.
Who Is This For?
✅ Perfect fit
Companies with existing .NET/Azure apps
You have a working product, users, revenue, and a growing backlog. You need senior capacity now — not after 3 months of hiring.
CTOs and tech leads
You know exactly what needs to be built. You want a senior who executes without hand-holding or management overhead.
Funded startups between hires
You need flex capacity while scaling. Pay monthly, pause when quiet, cancel when you've hired.
Teams that value async
Everything in writing: Notion, Jira, email. No syncs, no standups, no calendar coordination. Your team's time stays productive.
Existing Jira, ADO, or Linear setup
I work directly in your board and Git repo. Task in, PR out. No new tools to adopt.
❌ Not a fit
No existing codebase
Building an MVP from scratch requires product discovery. This service is for existing products with clear tasks.
Need daily standups or video calls
100% async, written only. No calls, no video, no exceptions. If your team requires synchronous communication, this isn't the right fit.
Need emergency or on-call support
This is not a DevOps or incident response service. Business hours, async only.
Looking for a project manager
You manage the backlog, I execute tasks. Clear ownership on both sides.
Need multiple devs in parallel
One senior, one active task at a time. If you need a team, consider an agency.
Stack outside .NET/Azure/React
Deep specialization is why it works. Generalists spread thin — I go deep on what I know.
Budget under $6,000/month
This is a premium service replacing a full-time senior hire — and priced accordingly. Founding rate: $6,000/mo.
FAQ
How fast is delivery?
Simple tasks (bug fix, config change): hours. Most work (feature, migration, integration): within 24h. Larger work is broken into incremental PRs — you see production progress every week.
How many tasks or hours do I get per month?
I don't count hours or tickets. Every week you see meaningful production progress — PRs shipped, features delivered. The subscription is about consistent senior output, not billable hours.
With a full-time hire I know I get 160h/month. How does this compare?
A full-time dev gives you 160h minus 60-80h of meetings, Slack, onboarding, and admin. You get 80-100h of actual coding — often at mid-level. With Async Dev you get pure senior engineering output: no standups, no 1:1s, no context switching. One task at a time means deep focus and faster delivery per task. After 2-3 weeks you'll know exactly what the throughput looks like — that's what the 7-day fit guarantee is for.
Really no calls? Not even to get started?
Really. Not even pre-sale. Send a backlog item — I respond with a written technical analysis in 24h. That's a better proof of competence than any call. Every decision stays searchable in writing.
Do I need to use Notion?
No. I work in your existing board — Jira, Azure DevOps, Linear, or any ticket-based system. Task comes in as a ticket, I deliver a pull request.
How do you achieve faster delivery?
I use Claude Code — an AI coding agent — to handle the mechanical parts: navigating large codebases, writing boilerplate, generating tests, finding related code across files. This frees me to focus on architecture and hard problems. Every task is reviewed, tested, and shipped by me personally — AI accelerates execution, not judgment.
Who works on my project?
Me personally. No offshore teams, no juniors — just direct work from a senior developer with 10+ years of experience. Every PR has my name on it.
Can I pause my subscription?
Yes. Pause anytime with a single email. Billing stops immediately. Resume whenever you're ready — your project context stays intact.
What's the Async Fit Sprint?
A low-risk entry point: one real production ticket, full delivery (PR, review, merge) for $1,500–2,500. See how I work on your actual code. The amount is credited toward your first month if you subscribe.
Do you sign NDAs?
Yes, on request. No extra charge.
What if I'm not happy?
7-day fit guarantee: try Async Dev on real production work. If the workflow isn't a fit, get 75% back. After that: cancel anytime, no questions asked.
Send one backlog item. Free.
Pick a real ticket — a bug, a feature, a migration. I'll respond within 24h with a written technical analysis.