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Caldorentis
+27 21 530 3300
support@caldorentis.com
Newcastle, South Africa

Work on actual problems that matter

Team collaboration on technical optimization projects

What makes this work different

Real technical depth

You'll work on genuine performance bottlenecks and indexing issues, not surface-level recommendations. We spend time profiling render-blocking resources, analyzing Lighthouse traces, and fixing actual Core Web Vitals problems. The work requires understanding how browsers process pages and how search engines crawl sites. You'll need to read server logs, interpret crawl data, and explain technical concepts to clients who need clarity without jargon.

Variety of challenges

Every site has different architecture and different problems. One week you're diagnosing why a React application isn't getting indexed properly. The next you're optimizing image delivery for an ecommerce platform handling thousands of SKUs. You'll work with different frameworks, different hosting environments, and different technical stacks. The problems stay fresh because every client brings something new. You learn constantly because the landscape keeps changing.

Visible impact

When you reduce page load time from four seconds to under two, you see traffic numbers change. When you fix structured data markup, you watch rich results appear in search. The work has measurable outcomes. Clients see their Core Web Vitals scores improve, their crawl efficiency increase, their site speed metrics turn green. You're not making theoretical improvements. You're solving problems that have clear before and after states with data to prove it.

Current openings

Technical SEO Specialist

You'll work directly with clients to solve real indexing problems, site architecture issues, and technical barriers affecting their search visibility. This means conducting thorough technical audits, analyzing crawl data, identifying bottlenecks in how search engines access content, and implementing fixes that actually move metrics. You need deep understanding of how search engines crawl and index content, experience with technical audit tools, and the ability to explain complex technical concepts in ways clients can understand and act on.

Experience analyzing server logs and crawl reports
Strong grasp of structured data and schema markup
Comfort working with development teams on implementation
Ability to prioritize fixes based on actual impact

Location

Newcastle, KZN

Type

Full-time

Apply Now

Performance Optimization Engineer

Your focus is making websites load faster through real optimization work, not just running automated tools and handing over reports. You'll profile rendering performance, identify resource bottlenecks, optimize critical rendering paths, and implement solutions that improve actual user experience metrics. This requires strong JavaScript performance knowledge, understanding of the browser rendering pipeline, and experience with performance profiling tools beyond just Lighthouse scores.

Deep Chrome DevTools performance profiling experience
Understanding of resource loading and caching strategies
Ability to optimize images and assets for different contexts
Experience measuring real-world performance impact

Location

Newcastle, KZN

Type

Full-time

Apply Now

People doing the work

Ingrid Kowalski, Technical SEO Lead

Ingrid Kowalski

Technical SEO Lead

I spent three years on the agency side before joining here. What's different is the depth we can go into. Instead of surface recommendations, we actually fix the underlying problems. Last month I solved an indexing issue for a client that had been blocking 40% of their product pages from search. That kind of work is satisfying.
Dmitri Volkov, Performance Engineer

Dmitri Volkov

Performance Engineer

I came from a frontend development background and got interested in performance optimization because slow sites frustrated me. Here I get to work on real bottlenecks. Recently optimized a site's Largest Contentful Paint from 5.2 seconds to 1.8 seconds by restructuring how they loaded hero images and deferring non-critical scripts. Seeing those metrics change is what makes this interesting.
Beatrix Novotná, SEO Consultant

Beatrix Novotná

SEO Consultant

What I value most is working with clients who actually want to understand why certain technical changes matter. I explain how canonical tags affect crawl budget or why hreflang implementation impacts international visibility. When clients grasp these concepts and see results, that's when the work feels meaningful. It's not just about making changes, it's about building understanding.

How we actually work

The consultation process

Consultations start with a technical audit. We examine site architecture, crawlability, indexation status, page speed metrics, and Core Web Vitals data. This takes time because we're looking for root causes, not symptoms. Once we identify issues, we prioritize based on potential impact and implementation complexity. Then we work with clients to implement fixes, testing along the way to verify improvements. Every consultation includes documentation explaining what was changed and why it matters.

Technical audit process documentation

What clients expect

Clients come to us with specific problems. Site not ranking despite good content. Pages loading slowly on mobile. Structured data errors preventing rich results. Products not appearing in Google Shopping. We focus on fixing these concrete issues rather than providing generic optimization advice. Clients expect clear explanations, measurable improvements, and realistic timelines. They want to understand what we're doing and why it will help. The relationship works when both sides are honest about what's possible and what takes time.

Client collaboration and technical discussion

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