The No-Bullshit Guarantee. Cancel any week, refund the last.
Home » Services » Software Development
Full-stack Delivery

Software Development

End-to-end engineering for validated products. Pick the engagement model, cancel any week, last week refunded if we didn't earn it.

Start with Discovery (€3,500) → Book a discovery call →

Weekly guarantee First week not worth it? Refunded, no questions.

Fixed-price guarantee Signed SoW. Delivery is contractually binding.

  • 75+ products shipped
  • Cancel any week
  • €3,500 deducted from final invoice
// 01

Pick your engagement model

Fractional CPO / CTO

Your technical co-founder on demand, covering both product strategy and engineering. Austrian engagement specifics, transparent day rates, and Werkvertrag terms live on the dedicated page.

Fractional CTO

MVP & PoC Development

Build only what you need to hit the next milestone. First client, first investor, or validated idea.

Complete Project Development

Done for you: concept, build, and project management. No headache, no handoff gaps.

Extended Team

We slot into your team and tools as engineer, QA lead, or technical PM. Fixed weekly retainer, cancel anytime.

Software Quality Assurance

While AI turns coders into copy-pasters, our QA service keeps your software (and reputation) from breaking.

Technical Consulting

Pick the right stack, avoid the expensive ones to hire for, and skip the tech you don't actually need.

Looking for something else? →

Weekly guarantee First week not worth it? Refunded, no questions.

Fixed-price guarantee Signed SoW. Delivery is contractually binding.

// 02

HOW WE DEVELOP SOFTWARE

How we develop Software

Five phases. Fixed prices. No lock-in.

Phase 01

Discovery Phase

Fixed price at 3.500€ Buy now
  • Requirements Engineering
  • Software Architecture
  • Milestone Plan
  • Technical Flows and Sequence Diagrams
  • Launch Plan and Milestone Plan
Phase 02

First Iteration

Fixed price between 15–20k€ (MAX) Book Discovery Phase
  • Building your real MAP (Minimal Awesome Product)
  • Cost-effective approach. Strip requirements to 15–20k max
  • Test directly on the market as cheaply as possible with real customers
  • Discovery Phase cost is deducted as a rebate
Phase 03

Subsequent Iterations

Fixed price packages / Agile Fixed Price What is Agile Fixed Pricing?
  • Building and extending product based on real customer/user demand
  • Ideally partially funded by real sales
  • Data-driven development decisions (watch user behavior over user demands)
  • Continuous improvement cycle
Phase 04

Maintenance

Fixed weekly retainer 750€ / week, cancel anytime Apply now
  • Security patches (nobody likes data breaches or losing money)
  • Fixing bugs (can be a major reason of customer churn)
  • Technical support (most companies have an abysmal customer support)
  • Performance, cost & CI/CD optimization
Phase 05

Further Dev / Hand-Over

Your product, your team. We'll never lock you in.
  • We'll never make you dependent on our team
  • Smooth transition to your internal team
  • Knowledge transfer and documentation
  • Continued support as needed
Fixed price at 3.500€ Buy now
  • Requirements Engineering
  • Software Architecture
  • Milestone Plan
  • Technical Flows and Sequence Diagrams
  • Launch Plan and Milestone Plan
Fixed price between 15–20k€ (MAX) Book Discovery Phase
  • Building your real MAP (Minimal Awesome Product)
  • Cost-effective approach. Strip requirements to 15–20k max
  • Test directly on the market as cheaply as possible with real customers
  • Discovery Phase cost is deducted as a rebate
Fixed price packages / Agile Fixed Price What is Agile Fixed Pricing?
  • Building and extending product based on real customer/user demand
  • Ideally partially funded by real sales
  • Data-driven development decisions (watch user behavior over user demands)
  • Continuous improvement cycle
Fixed weekly retainer 750€ / week, cancel anytime Apply now
  • Security patches (nobody likes data breaches or losing money)
  • Fixing bugs (can be a major reason of customer churn)
  • Technical support (most companies have an abysmal customer support)
  • Performance, cost & CI/CD optimization
Your product, your team. We'll never lock you in.
  • We'll never make you dependent on our team
  • Smooth transition to your internal team
  • Knowledge transfer and documentation
  • Continued support as needed
// 03

What we actually ship

Our technical core competencies: things we've shipped, not just studied.

Mobile Apps

The app store is brutal. We build apps people keep using after day one.

Explore

Web Apps

Enterprise to consumer. Finance to crypto. We build web apps that handle real load and real users.

Explore

Bleeding Edge Technologies

ZK, Blockchain, AI, IoT, we've shipped in all of these, not just theorized about them.

Explore

FREE SKILLS · NO API KEY · NO SIGNUP

Two free skills for teams shipping production code

We use these prompts on real engagements. QA audits and high-ticket landing pages that close. Drop them into your own AI before you ship.

  1. 01

    QA Advisor

    Audits your tests like a senior engineer: OWASP, reliability, scalability, and the mocked-DB tests that quietly pass.

    Run in Claude → Install / read
  2. 02

    High-Ticket Conversion Architect

    Designs landing pages that close $10k+ offers. Intent-friction ratio, proof of work, selective enrollment.

    Run in Claude → Install / read
See all 6 skills →

BEFORE YOU APPLY

Who our development retainer is not for.

Below the line we'll either route you to the right service or wave you off. Both are wins.

  1. You want hourly billing or weekly timesheets.

    We don't track hours. Two ways we work instead: fixed pricing against a signed scope, or a weekly retainer. Cancel any week, last week refunded if we didn't blow you away. If procurement insists on timesheets, we're structurally the wrong shop.

  2. You don't have a product owner on your side.

    Someone has to decide. "We'll figure it out together" is not a plan, it's a delay. If you need the product thinking too, that's a different engagement.

    Better fit Fractional Co-Founder

  3. You need pure legacy maintenance with no new build.

    We ship new things. If what you actually need is someone to keep a live product safe and stable, our QA partnership covers that. We find what breaks, and we fix it.

    Better fit Software Quality Assurance

  4. Your stack is COBOL, mainframe, SAP customisations, or niche embedded firmware.

    We're heavy on web, mobile, cloud-native, AI, and blockchain. The rest is not our craft.

A clean no costs us a call. A messy yes costs you a quarter. We say no early.

Still unsure? Email office@wavect.io and we'll point you somewhere honest

HOW WE WORK

Your Journey with Wavect

From idea to paying customers, and the long haul beyond that.

Your Idea

Want to make sure you build the right product?
YES
NO
YES

Co-Founder Track

Helping you validate your idea and build the right product

✓ Market validation ✓ Strategy development ✓ Skip 3.5k€ discovery
NO

Discovery Phase

Everything you and we need to build a great and reliable product

✓ Technical planning ✓ Fixed price offer ✓ Launch plan
1

Fractional Co-Founders

Ideation & Market Validation
Weekly Retainer
400€ /week Cancel anytime • Last week refunded if no impact
Duration: 4+ weeks (ongoing until direction is clear)
What we do:
  • Validate fast & creatively with minimum funds
  • Build for product-market-fit
  • Define clear direction & strategy
  • Prepare for development phase
Fractional Co-Founder details

Discovery Phase

Technical Planning & Architecture
Fixed Price
3.5k€ Fixed Comprehensive technical foundation
Duration: 1-3 weeks
What we deliver:
  • Complete software architecture design
  • Detailed milestone plan with timelines
  • Technical flows and system diagrams
  • Launch plan and rollout strategy
  • Fixed price offer for development
Discovery Phase details
Once direction is clear
2

Software Development

Build & Launch
Fixed Price or Weekly Retainer
Fixed Price Offers Milestone-based, or weekly retainer for ongoing work
What we do:
  • Build your validated product concept
  • Early go-live for market validation
  • Milestone-based delivery (no half-baked products)
  • Seamless transition from strategy to execution
  • AI-powered development with human quality assurance
Software Development details
Once you're live
3

Software Quality Assurance

Maintain & Speed Up
Weekly Retainer
750€ /week Cancel anytime • Last week refunded if no impact
Duration: Long-term partnership
What we do:
  • Add new features & adjacent products
  • Ensure products work properly
  • Maintain quality standards
  • Speed up your internal developers
  • QA for AI-assisted and Vibe-coded software
Note:
We also do QA on projects we haven't built (including vibe-coded projects).
Software QA details

Long-term Partnership

We win when you win. That's the alignment.

THE NO-BULLSHIT GUARANTEE

If we don't blow you away, you don't pay for the week. That's the whole deal.

01.

Cancel any week.

No notice period, no exit fee, no questions.

02.

Refund the last week.

If we didn't blow you away, you don't pay for it. It's in the contract.

03.

No hours tracked.

We work to exceed expectations, not to fill timesheets.

WHY THIS WORKS

We don't sell time. We sell outcomes.

Most agencies sell hours. The longer they stay, the more they earn. The incentives are broken.

Our deal is simpler: every week, we have to earn the next one.

If we don't blow you away, you don't pay for that week. No invoices to dispute, no hours to audit, no calls to escalate.

And if your expectations are detached from reality, we walk too. We work with operators, not lottery winners.

Walking out is not walking away. Anything we built ships documented, version-controlled, and ready for handover. No client is left holding a broken product.

That's why this works. We both have skin in the game.
The Wavect Team

These rules are written into every contract. Weekly retainers (Fractional Co-Founder, Software QA, Development Retainer): cancel any week, refund the last, no hours tracked. Fixed-price projects (Discovery, milestone-based Development): signed statement of work (Werkvertrag), fixed scope and deadline, contractually bound to deliver. Two mechanisms, one promise — we earn what we get paid.

FAQs

Everything you need to know about our development process

End any week, with one message. No notice period, no exit interview, no fine print. We invoice weekly, so the most you’re ever committed to is the current week.
It’s in your contract: tell us, and we refund that week. No questions, no invoices to dispute, no calls to escalate. The only rule: refunds apply to the most recent week.
Because hours are the wrong metric. If we’re optimizing for hours billed, we’re not optimizing for your outcome. The deal is simpler: every week, we earn the next one. If we don’t, you don’t pay. We’re free to spend zero hours or sixty. What matters is whether you’re blown away.
We work with operators, not lottery winners. If a request would require breaking physics, the law, or a third party’s systems, we say so, and if we can’t align, we walk. The guarantee is mutual: you can fire us any week; we can also fire ourselves.
We use a milestone-driven approach with constant feedback loops. Every 1-2 weeks, you see working software that you can interact with. We start with detailed wireframes and prototypes before writing any code, and you approve each major feature before we build it. Plus, our team includes Product Managers who translate business needs into technical requirements preventing the common disconnect between what you asked for and what gets built.
Requirements always change, that’s reality. We plan for it. Our agile methodology includes change management protocols: we assess the impact of changes on timeline and budget, reprioritize features with you, and adjust sprints accordingly. Small changes (up to 20% of sprint scope) are typically absorbed without additional cost. Larger changes go through a formal change request process with transparent pricing.
This is actually our sweet spot. We start with a Discovery Phase where we conduct stakeholder interviews, analyze your business processes, research your target users, and study competitor solutions. We then create user journey maps, feature prioritization matrices, and technical architecture proposals. You get a clear roadmap before any development starts, usually saving you months of building the wrong thing.
We’re very flexible. We can integrate seamlessly with your existing team as staff augmentation, lead specific modules while your team handles others, provide technical mentorship to junior developers, or take full ownership of the project. We use your existing tools, coding standards, and workflows. Your team won’t feel like we’re outsiders, we become an extension of your development capacity.
We use fixed-scope sprints with clear deliverables and acceptance criteria. Every feature is estimated upfront with buffer time included. Weekly reviews ensure we’re on track before small issues become big problems. For larger projects, we break them into phases with separate budgets, you can stop after any phase if priorities change. All additional work requires written approval with cost estimates. We also offer agile fixed-price engagements: scope locked per sprint, no budget surprises.
All our projects include comprehensive testing and a 30-day warranty period. We perform unit testing, integration testing, and user acceptance testing before delivery. Any bugs found within 30 days are fixed at no charge. We also provide detailed documentation and training so your team can maintain the system. Critical bugs are addressed within 24 hours, non-critical within 5 business days.
Technology selection is based on your specific needs, not our preferences. We consider: your existing infrastructure and team skills, long-term maintenance requirements, performance and scalability needs, budget constraints for hosting and licensing, timeline requirements, and hiring market for future developers. We present options with pros/cons and costs, then decide together. We avoid trendy technologies unless they solve specific problems.
You get complete transparency. We provide: weekly sprint reviews with demos, real-time access to project boards (Jira), progress reports, and direct access to developers. You can see exactly what’s being worked on, by whom, and current status. No black box development, you’re involved as much or as little as you want to be.
Testing: unit and integration coverage on every PR with Jest, Vitest, or pytest depending on language. End-to-end with Playwright for web, Maestro or Detox for mobile. Static analysis: ESLint, biome, mypy. Observability: Sentry for errors, OpenTelemetry traces piped to Datadog, Grafana Cloud, or Honeycomb depending on your stack. Logs structured (JSON) from day one. Uptime monitoring with Better Stack or Uptime Kuma. If you’re not getting paged when the app breaks, we didn’t finish the job.
Cancel any week.
Refund the last week.
No hours tracked.

First week not worth it? Refunded, no questions.

Talk to an expert

 Apply now
Ernesto, our company mascot