The verdict in three sentences
A structural engineering firm with 35 engineers and 300 projects a year must win over two very different audiences: the architects and developers who specify it, and the engineers it wants to hire in a tight Berlin labour market. In a 2026 ballpark, a website that does both well costs EUR 12,000 to 24,000 excluding VAT with a Berlin agency, over 8 to 10 weeks, with 40 filterable project references and a real careers page. The simplest payback calculation fits on one line: one hire made without a recruitment agency saves 20 to 25% of an annual salary, often more than half the site budget.
What an architect looks for in 90 seconds on your site
An architect preparing a competition entry or a developer planning a 60-unit residential block will not read your brochure. They want to check three things: have you done this type of structure before, at what scale, and with whom. The site must therefore be built around a project reference engine, not an "About us" page.
Each reference deserves a short structured sheet: building type (residential, public buildings, offices, industrial, bridges), material (reinforced concrete, steel, timber, hybrid), construction value, client, architect, HOAI service phases covered (LP 1 to LP 8), year, two to four photos and one technical challenge solved. With 40 references filterable by type and value band, a specifier finds a comparable project in three clicks.
| Item | Scope | 2026 ballpark (Berlin, excl. VAT) |
|---|---|---|
| Scoping and site map | Workshops, specifier and candidate personas | EUR 1,200 to 2,500 |
| Custom design | Mockups, visual system, 8 to 12 templates | EUR 3,000 to 6,000 |
| Reference engine | 40 sheets, filters by type, material, value | EUR 3,000 to 5,500 |
| Careers page | 6 permanent openings, testimonials, form | EUR 1,800 to 3,500 |
| Build and CMS | Development, back office, training | EUR 2,400 to 5,300 |
| Technical SEO and copy | Key pages written, structured data | EUR 600 to 1,200 |
| Indicative total | 8 to 10 weeks | EUR 12,000 to 24,000 |
An English version, useful for international developers and for recruiting engineers who do not yet speak fluent German, adds roughly EUR 2,500 to 5,000 on the market, depending on how many references are translated. At Kolonell, this scope and the languages are set in the quote.
The careers page as a recruitment tool in its own right
In 2026, an experienced structural engineer in Berlin receives several approaches a month. Your careers page is compared with those of large engineering groups. It must show what generic job ads leave out: the kind of projects given in year one, software used (Dlubal RFEM, SOFiSTiK, Tekla, Revit), training budget, remote work, the balance between office and site.
Six permanent openings (concrete engineer, steel engineer, BIM modeller, project manager, working student, graduate) are enough to capture applications all year round. Add three engineer profiles, a short studio video and a form that accepts a CV in one tap from a phone.
| Recruitment channel | Cost per hire (2026 ballpark) | Average time |
|---|---|---|
| Recruitment agency | 20 to 25% of annual salary, i.e. EUR 13,000 to 17,000 | 6 to 10 weeks |
| Paid job boards (StepStone etc.) | EUR 900 to 1,800 per ad | 8 to 12 weeks |
| Employee referral | Bonus of EUR 1,500 to 3,000 | Variable |
| Universities and working students | Low, but junior hire | 3 to 6 months |
| Careers site plus social | Near zero after launch | 4 to 10 weeks |
| LinkedIn Recruiter | EUR 7,000 to 9,000 per year per seat | Variable |
Timeline and internal organisation
This type of site ships in 8 to 10 weeks if a senior engineer is named as owner for approving reference sheets. That is the real bottleneck: gathering photos, values and client approvals for 40 projects often takes longer than the build itself.
Recommended plan: weeks 1 and 2 for scoping and collection, weeks 3 and 4 for design, weeks 5 to 8 for build and reference entry, weeks 9 and 10 for testing and launch. Then add two to three references per quarter to keep the site alive. Maintenance can follow Kolonell's standard plans (35,000, 75,000 or 120,000 FCFA per month, i.e. 53, 114 or 183 EUR) or a specific contract set in the quote.
Mini case study
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Jonas, managing partner of a structural engineering firm in Berlin (35 engineers, 300 projects a year), hires three engineers a year on average, two through an agency. For an annual gross salary of EUR 65,000, each agency hire costs 22%, i.e. EUR 14,300, so EUR 28,600 a year.
If the new careers site avoids just one of those two agency hires each year, the saving is EUR 14,300. On a EUR 18,000 project, the careers page alone repays almost 80% of the site in year one. On the sales side, if the reference engine brings one extra commission worth EUR 30,000 in fees a year, the site pays for itself in well under 12 months.
FAQ
Can we publish construction values for projects?
Yes, as bands (under EUR 2 M, EUR 2 to 10 M, over EUR 10 M) to respect client confidentiality. Around 80% of specifiers filter by project scale first.
How many references do we need at launch?
Thirty to forty well-documented references are enough. Forty complete sheets beat 150 thumbnails with no text.
Is an English version essential in Berlin?
It pays off if more than 10% of your team or clients work in English, which is common in Berlin. On the market it costs roughly EUR 2,500 to 5,000.
How many applications does a good careers site generate?
For a 35-person firm, expect 4 to 10 qualified unsolicited applications a month after six months, if openings are shared on LinkedIn and XING.
Should we embed BIM models or 3D viewers?
Static BIM visuals are enough in 90% of cases. Interactive 3D viewers slow pages down and add EUR 2,000 to 4,000 without a clear gain with specifiers.
Let's scope your project. Filterable references, a careers page and an English version can be scoped together for launch in 8 to 10 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
