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What we build for you.

Web and mobile apps, APIs, SaaS, DevOps and search visibility. You work directly with the engineers writing your code, and walk away owning all of it.

Last reviewed · 1 Oct 20266 primary sources →Kalenux engineering
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✓Senior engineers only✓100% code ownership✓30 days post-launch support
kalenux / services● 8 available
DEVELOPMENTCONSULTINGGROWTH
Development01 / 08

Web application development

From landing pages to complex, multi-user SaaS platforms.

Full frontend & backend source✓
Admin dashboard✓
Documented REST / GraphQL API✓
See the full service↓
01Web apps02Mobile apps03Backend & API04SaaS05Consultancy06DevOps07SEO08Content writing
01 / 08Development

Web application development

From landing pages to complex, multi-user SaaS platforms.

Polished marketing sites, internal tools and platforms handling thousands of concurrent users. APIs come versioned and documented, with authentication, input validation and rate limiting as the baseline.

WHAT YOU GET
✓Written requirements & scope document
✓Architecture with data-flow diagrams
✓Full frontend and backend source code
✓Deployed, production-ready application
✓Admin dashboard for content & users
✓REST or GraphQL API with OpenAPI docs
✓Authentication (JWT, OAuth or session)
✓30 days post-launch support
EXAMPLESWWhen Notes FlyFFileformerEExhibition Stands EU
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web-platform · production
https://yourproduct.com/dashboard
frontenddeployed
api · openapi docsdeployed
admin dashboarddeployed
android-app · release
Google Playpublished
titles live5
downloads60K+
push · crash reportson
02 / 08Development

Mobile app development

Native Android and cross-platform. 5 titles on Google Play.

We know the full lifecycle, from wireframe to store listing to post-launch updates. Native when performance or deep system access matters; one cross-platform codebase when you need iOS and Android together.

WHAT YOU GET
✓UX wireframes reviewed before development
✓Signed app and full source code
✓Google Play listing & submission
✓App Store Optimization (ASO)
✓Backend API integration & sync
✓Push notifications
✓Crash analytics & error monitoring
✓Documented release process
EXAMPLESQQR & Barcode ScannerPPhoneCMDTTrue File Locker
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03 / 08Development

Backend API & microservices

Standalone APIs built for performance and long-term maintainability.

One backend serving your web app, mobile app, integrations and admin at once. Normalised schemas, proper indexing and query analysis catch problems before production; caching and security are built in from day one.

WHAT YOU GET
✓OpenAPI / Swagger spec for every endpoint
✓Deployed, containerised API
✓Annotated schema with migrations
✓Caching layer with invalidation strategy
✓Authentication & authorisation
✓Rate limiting, structured logs, error handling
✓Uptime, latency & error dashboard
✓Full source with setup instructions
EXAMPLESCCertoJobCCorpyMMirgent
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api · openapi spec
GET /v1/articles200
POST /v1/auth/refresh200
GET /v1/users/:id200 · cached
POST /v1/billing/webhook202
rate limit100 req/min
openapi.yamlgenerated
saas · tenants
acmeisolated db
globexisolated db
initechisolated db
subscription billingactive
roles · owner / admin / memberRBAC
failed-payment recoveryon
usage analyticstracking
04 / 08Development

SaaS product development

Zero to one: everything a subscription business needs.

A SaaS product is far more than application code. We build true multi-tenancy from day one, subscription billing with full webhook handling, roles for team members, an admin panel, transactional email and analytics that show where users drop off.

WHAT YOU GET
✓Multi-tenant architecture, per-account isolation
✓Subscription billing with webhooks
✓Authentication & role-based access
✓Admin panel for accounts & subscriptions
✓Usage analytics & engagement tracking
✓Transactional email for every lifecycle event
✓Failed-payment recovery
✓Deployment & scaling documentation
EXAMPLESMMirgentWWhats Your IQCCitePep
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05 / 08Consulting

Technical consultancy & architecture

A senior engineer’s direction, without a full-time hire.

Architecture reviews, code audits, technology selection, performance profiling and security assessments: methodical, by severity, with specific recommendations. Or we embed with your team for a defined engagement.

WHAT YOU GET
✓Written audit report by severity
✓Current vs. recommended architecture
✓Prioritised improvements with estimates
✓Technology selection comparison
✓Performance profiling & remediation
✓Security assessment notes
✓Follow-up Q&A session
EXAMPLESKKalenuxerFFileformerPPhoneCMD
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code-audit-report.pdf
FINDINGS BY SEVERITY
critical3
high7
medium11
low5
recommended architecturediagram
fixes with effort estimatesprioritised
pipeline · main
✓ commit→✓ test→✓ build→✓ deploy→● monitor
zero-downtime rolloutdone
ssl · http/2 · compressionon
uptime alertsarmed
nightly backupsrestore tested
06 / 08Consulting

DevOps & infrastructure

Deployments so boring they just work.

Every service containerised, local environments that match production, and CI/CD that tests, builds and deploys on merge with zero downtime. Hardened servers, monitoring with alerting and backups designed around real recovery objectives.

WHAT YOU GET
✓Containers for every environment
✓CI/CD with zero-downtime deploys
✓Reverse proxy with SSL, compression, HTTP/2
✓Hardened VPS or cloud setup
✓Uptime monitoring & alerting
✓Error tracking & log aggregation
✓Automated backups with restore procedure
✓Infrastructure runbook
EXAMPLESKKalenux networkKKalenuxerSStatus page
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07 / 08Growth

SEO & search visibility

Engineering-first SEO that moves rankings, and keeps them.

Most SEO problems are architecture problems that look like content problems. We fix crawlability, Core Web Vitals, structured data and site architecture first, then build keyword research, on-page work and links on top: every technique proven on our own platforms.

WHAT YOU GET
✓Full technical audit with prioritised fixes
✓Core Web Vitals (LCP, INP, CLS) fixes
✓Keyword research & content-gap analysis
✓On-page optimisation & schema markup
✓Search Console & analytics setup
✓Link-building strategy
✓Monthly ranking & traffic reports
EXAMPLESKKalenux SEO AuditWWhen Notes FlySStrange Animals
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search-console · performance
organic clicks · 12 months (illustrative)
LCP · good1.9s
INP · good120ms
CLS · good0.02
guide-draft-v3.md
writer→editor→fact-check→publish
↳ source added · [3] primary study
sources cited12
schema · hreflangset
08 / 08Growth

Content & article writing

Expert-written long-form, built to rank and earn trust.

Each topic goes to a writer who actually knows the field, then to a professional editor who checks facts, tightens the argument and structures it for search. No invented statistics, no filler, nothing auto-generated and shipped unread.

WHAT YOU GET
✓Topics matched to expert writers
✓Professional editing on every draft
✓Fact-checking & primary-source citations
✓Search-intent structure, meta & schema
✓Pillar pages that earn links
✓Refresh & correction workflow
✓Multilingual publishing with hreflang
EXAMPLESWWhen Notes FlyEEvolangSStrange Animals
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in depth · 6 primary sources

The standards behind every service.

Public, checkable sources for the facts on this page.

01Engineering

Web work is built against the OWASP Top 10 [1] and WCAG 2.2 [2]. APIs are documented with the OpenAPI Specification [3]. Delivery is measured with DORA’s four key metrics [4].

02Growth

SEO work starts from Google Search Essentials [5]; content follows Google’s guidance on helpful, people-first writing [6].

KEY FACTEach service page has its own cited In depth section.

References

  1. [1]OWASP Top 10 · OWASP Foundationowasp.org/www-project-top-ten/
  2. [2]Web Content Accessibility Guidelines (WCAG) 2.2 · W3Cwww.w3.org/TR/WCAG22/
  3. [3]OpenAPI Specification · OpenAPI Initiativespec.openapis.org/oas/latest.html
  4. [4]DORA’s software delivery metrics · DORA (Google Cloud)dora.dev/guides/dora-metrics-four-keys/
  5. [5]Google Search Essentials · Google Search Centraldevelopers.google.com/search/docs/essentials
  6. [6]Creating helpful, reliable, people-first content · Google Search Centraldevelopers.google.com/search/docs/fundamentals/creating-helpful-content
CITE THIS PAGEKalenux. (2026). Kalenux services. Kalenux SEO Guide. Last reviewed 1 Oct 2026. kalenux.com.tr/services