Service Lines
CELESDEV Solutions · celesdev.com
What We Do
Four practices, one integrated team
01
Enterprise Architecture
EA governance design, TOGAF ADM adaptation, Architecture Review Board setup, MEGA HOPEX & LeanIX repository implementation, and fitness functions for architectural integrity.
TOGAFMEGA HOPEXArchiMateC4 Model
02
Cloud & Platform Engineering
Landing zone design, cloud migration programmes, internal developer platform build, FinOps operating model, Kubernetes at enterprise scale, and SRE practice establishment.
AzureAWSTerraformBackstageArgoCD
03
Integration & Data Architecture
Middleware modernisation (BizTalk, MuleSoft, TIBCO), event-driven architecture design, API strategy and platform, SAP integration, and data mesh programme delivery.
KafkaSymfonySAPOpenAPIConfluent
04
AI Engineering
Enterprise RAG architecture, LLM platform design, AI readiness assessment, vector store selection and governance, guardrail implementation, and AI operating model design.
RAGLangChainQdrantAzure OpenAIGuardrails
Our Team
CELESDEV Solutions · celesdev.com
Practice Leads
Practitioners who deliver, not advise
EA
Enterprise Architecture Practice
Managing Director · Enterprise Architect
12+ years leading EA programmes in financial services, energy, and public sector. TOGAF-certified. Author of the EA Governance Handbook. Led architecture functions at organisations with 200–1,200 engineers.
CP
Cloud & Platform Practice
Cloud & Platform Lead
Led cloud adoption programmes for 11 enterprises on AWS and Azure. Designed landing zones for organisations migrating 80+ workloads. Specialises in IDP build, FinOps, and Kubernetes at enterprise scale.
ID
Integration & Data Practice
Integration & Data Architect
8+ years in middleware modernisation and event-driven architecture. Led BizTalk and MuleSoft decommission programmes. Designed API platforms for retail and telecom clients. Expert in SAP integration patterns.
All CELESDEV practice leads maintain active delivery roles — we do not have a bench of consultants who manage client relationships while others deliver. Your engagement is led by the same person who runs the practice.
Representative Engagements
CELESDEV Solutions · celesdev.com
Selected Work
Outcomes delivered in production
1
Financial Services · EA Programme
Enterprise Architecture Function — European Bank (post-merger)
Designed and stood up the EA function: governance model, ARB, MEGA HOPEX configuration, TOGAF ADM tailoring. 340 services catalogued in 18 months. Architecture maturity moved from Level 1 to Level 3.
340
services
2
Energy · Cloud Migration
Azure Landing Zone & 80-Workload Migration — Energy Group
Hub-and-spoke landing zone, subscription vending machine (Terraform), migration of 80+ workloads from on-prem over 14 months. 40% infrastructure cost reduction post-migration.
40%
cost savings
3
Retail · Integration
BizTalk Decommission & Event-Driven Migration — Retail Group
Replaced 12-year-old BizTalk with Kafka + Symfony Messenger via strangler fig pattern. 60% latency reduction. Zero-downtime cutover. 9-month programme.
60%
latency down
4
Telecom · Platform Engineering
Internal Developer Platform — Telecom Operator (1,200 engineers)
Backstage IDP with six service archetypes, Crossplane self-service infrastructure, ArgoCD GitOps layer. DORA metrics improved from Low to High performer tier in 12 months.
DORA
High performer
Delivery Model
CELESDEV Solutions · celesdev.com
How We Engage
Three engagement models, one quality standard
01 · Fixed Scope
Discovery & Assessment
4–8 week fixed-scope diagnostic producing a prioritised roadmap and business case. Clear deliverables, defined timebox, fixed price. Ideal for organisations starting a programme or validating a strategy.
02 · Time & Materials
Programme Delivery
Embedded senior practitioners working alongside internal teams to deliver a defined programme of work. Weekly governance cadence with clear milestones. Suitable for cloud migrations, EA implementations, and platform builds.
03 · Embedded Team
Sustained Capability
A dedicated CELESDEV team embedded within your organisation for 6–18 months, building internal capability while delivering. Used for standing up new practices (EA function, platform team, FinOps programme).
Our Operating Principles
Senior-only delivery. No junior handoff. Your engagement lead is your deliverer.
Build to last. We document, codify, and transfer everything. No dependency on our continued involvement.
Measure outcomes. Every engagement defines success metrics up front. We track and report them throughout.