0.1 seconds of delay costs you 1% in revenue

I identify and fix the technical bottlenecks that are costing you conversions and revenue

Request an Auditmehr erfahren
Nils Schlüter
01 / ProfileBochum · DE
Successful projects with
ContinuumObjegoeco.incomeAbo Store
— Pain points

Problems I solve

04 issues

— Fit check

Will the Website Audit help you?

— Yes, if you...

  • Know your website is slow – but don't know exactly where the problem lies
  • Are facing a redesign or relaunch and don't want to carry technical debt into the new project
  • Fall under the EU accessibility obligation since 2026 and need legal compliance
  • Want concrete, prioritised measures – not a generic checklist

— No, if you...

  • Are still building your website from scratch – the audit comes after that
  • Prefer general optimisation tips over deep code analysis
— About

How I help

I'm Nils – Senior Fullstack Developer specialising in modern web applications and performance optimisation. For years I've been building products for startups and mid-sized companies that are used by real users every day.

With a Performance Audit you can:

  • Save revenue: Amazon found that 100ms of latency costs 1% in revenue. I reverse that loss.
  • Boost SEO & GEO: Core Web Vitals are a ranking factor and fast pages are also crawled better by LLMs.
  • Reduce infrastructure costs: Optimised code consumes fewer resources.
Nils Schlüter
01 / ProfileBochum · DE

My tech stack for optimising your website:

tools
Next.jsSanityStrapiReactPostgreSQLSentry
— Selected work

Successfully implemented for

04 case studies

  • 01 / Case
    Abo Store

    Abo Store

    Full-Stack Development

    — Herausforderung

    • Ideation, feature conception, and implementation of the complete business idea
    • Building and operating an SEO-optimised web platform
    • Technical implementation of all frontend and backend development

    — Ergebnisse

    • Scaled to over 10,000 monthly visitors through organic traffic
    • Top-3 ranking in Google search for over 100 relevant keywords through targeted SEO optimisation
    • 1st place at the startup competition "Leitidee" in Bochum (2022)
    Next.jsTypescriptNode.jsTailwindCSSShadcn UIFirebase Functions
  • 02 / Case
    eco.income

    eco.income

    Full-Stack Development

    — Herausforderung

    • Full-stack development of a SaaS product including software architecture and data model
    • Close collaboration with the founder for continuous product validation

    — Ergebnisse

    • Built a SaaS product from scratch through to launch including customer onboarding
    • Long-term operation of the platform with high availability
    TypescriptReactTailwindCSSNode.jsDockerGoogle Cloud
  • 03 / Case
    Objego

    Objego

    Front-End Development

    — Herausforderung

    • Further development of an existing SaaS product, implementing new features within a Scrum team
    • Regular training and onboarding of new team members
    • Advancing the application architecture in collaboration with other lead developers

    — Ergebnisse

    • Reduction of build and test times by up to 80% by converting a monolithic Angular application into monorepos and micro frontends
    • Successful Angular version upgrades from v15 to v18, including refactoring and adoption of new Angular features
    AngularTypescriptDockerSentry
  • 04 / Case
    Continuum

    Continuum

    Full-Stack Development

    — Herausforderung

    • Further development of a SaaS solution with Next.js and Firebase
    • Support with planning new features and advancing the product roadmap

    — Ergebnisse

    • \~60% improvement in load times through implementing a frontend caching strategy and optimising training plan generation algorithms
    • Introduction of unit tests with >80% test coverage on new code
    • Improved development velocity through refactoring and code optimisation
    Next.jsTypescriptTailwindCSSNode.jsTanStack QueryShadcn UI
01/05
— Process

The audit process

03 phases

  1. 01— Discovery

    Discovery & Audit

    We discuss exactly what you want for your website. I then test your website thoroughly and prepare a comprehensive report.

    Book a free initial call
  2. 02— Build

    Results Review

    We go through the results together and you receive very concrete tips from me on how to improve your website. I explain all the audit findings and the best steps for fixing the issues.

  3. 03— Launch

    Implementation

    If needed, I'm happy to support you with implementation in the next step. We discuss together which points from the audit we want to tackle and I take care of the solution independently.

— Testimonials

Testimonials

03 voices

Hira Verick
01 / ReferenceHira VerickDesign / Technology / Strategy @ continuum

There aren’t many true full-stack developers. Fewer still can take on deeply complex problems and genuinely solve them. Nils is both, and more. He brings technical depth, clarity of thought, and a calm, reliable presence to every project. A highly respected and recommended addition to any team. And when he’s not coding, he’s out training for triathlons; a true embodiment of work hard, code hard, play hard. On all fronts, Nils is a machine.

John Drake Brockman
02 / ReferenceJohn Drake BrockmanChapter Lead @ ista

At objego, I worked with Nils in different teams and phases of the company - from greenfield features to legacy migrations. What always impressed me was how quickly he could slot into new setups and immediately start contributing real value. He brings a strong mix of technical depth, calm communication, and the flexibility to adapt to changing requirements. You always felt in good hands when Nils was involved.

Jurij Peters
03 / ReferenceJurij PetersCo-Founder & CEO @ eco.income Engineering GmbH

Nils war einer der ersten, die unser Produkt technisch mit aufgebaut hat. Mit seiner strukturierten Arbeitsweise, Flexibilität und klaren Kommunikation hat er maßgeblich dazu beigetragen, dass wir schnell vom Konzept zur funktionierenden Lösung kamen. Besonders wertvoll war seine Fähigkeit, Unklarheiten in Anforderung proaktiv und kreativ zu lösen und ein gutes Auge für UI.

— Contact

Tell me about your project

Response < 24h

Want to talk about your project? Feel free to reach out via the form or:

— Here's how it works

  1. A no-obligation conversation about your project

    We'll discuss your project and I'll show you how we can tackle it together.

  2. Concept and proposal

    I'll create a detailed concept with a clear timeline and a transparent offer.

  3. Fast execution

    From concept to working solution with regular updates and clear communication.

— Direct

project_request.formlive
— FAQ

Frequently Asked Questions

05 questions

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