Full-Stack Product Delivery
Frontend, backend, integrations, and deployment for web products that need more than isolated feature work.
- React, Next.js, and TypeScript
- APIs, auth, and integrations
- From MVP to production
Senior Fullstack & Platform Engineering
Fullstack Engineering for scalable web products
I build modern web applications from frontend and backend to AI integrations and cloud infrastructure: TypeScript, APIs, databases, Kubernetes, CI/CD, observability, and handover-ready operations.
8+ years
full-stack and platform delivery
5+
products migrated, built, or stabilized
DACH
remote and on-site availability
~ pipeline.yaml
# turtledev / production deploy apiVersion: tekton.dev/v1 kind: PipelineRun spec: stages: - build - test - scan - deploy › build ✓ 1m 42s › test ✓ 3m 08s › scan ✓ 0m 51s › deploy ✓ 2m 16s release: healthy
Cluster health · prod-eu-01
128 Pods · 12 Nodeshealthy
Deploys today14 / 14
p99 latency86ms
Trusted across product, commerce, and platform teams
amplicade
Dynabase
Schäfer Shop
Sparhandy
Avaco
ALDI
Services
Full-stack delivery with production ownership
I work where product engineering and platform reliability meet: building user-facing software, APIs, integrations, deployment paths, and operating models that teams can keep running.
Backend & API Engineering
Robust services, data flows, and automation when business logic, integrations, and operational visibility need to be designed properly.
- TypeScript and Node.js
- PostgreSQL and service design
- OpenAPI and third-party systems
Platform Engineering
Kubernetes, OpenShift, GitOps, and internal developer workflows for teams that need reliable delivery without platform guesswork.
- Kubernetes and OpenShift
- Argo CD and GitOps
- Developer self-service
Cloud Architecture
Cloud-native architecture and migration execution for applications that need predictable scaling, cost, and cutover paths.
- GCP, AWS, and Azure
- Terraform foundations
- Migration roadmaps
CI/CD, GitOps & Reliability
Build, release, observability, and security practices that make delivery repeatable instead of fragile.
- Pipeline hardening
- Policy and release gates
- Monitoring and incident readiness
AI Product & Team Enablement
Agentic frameworks, LLM integration, team enablement, and practical AI features added to existing software without losing production discipline.
- LLM and agentic systems
- Chatbots, RAG, and image workflows
- Team training and handover
Approach
Four phases, clear ownership, first impact within weeks.
Understand
Map product goals, users, teams, constraints, production risks, deployment paths, and where delivery currently slows down.
Design
Turn findings into a pragmatic product architecture, implementation path, platform plan, and operating model teams can actually adopt.
Deliver
Implement the critical pieces hands-on: UI, APIs, data flows, integrations, pipelines, platform capabilities, and observability.
Handover
Document decisions, coach teams, reduce key-person risk, and leave product and platform in a state the team can own.
Selected Work
Product and platform engagements with practical impact.
Representative examples of the outcomes I design for: shipped web products, safer migrations, reliable releases, and systems teams can operate without heroics.
React · Next.js · Azure Kubernetes
Production frontend for an enterprise commerce launch
Built a greenfield customer-facing frontend, connected it to backend services, integrated third-party APIs, and prepared containerized production deployment with product and backend stakeholders.
Greenfield
frontend delivery
Connected
API landscape
Ready
production handover
ReactNext.jsTypeScriptDockerAzure Kubernetes
Team activity12 weeks
428
commits
96
deploys
184
reviews
0
incidents
OpenShift · Migration · CI/CD
OpenShift migration for a regulated enterprise platform
Led the technical migration path from legacy deployment patterns to a repeatable OpenShift foundation with GitOps, policy gates, and predictable release flows.
Lower
migration risk
Clearer
release ownership
Safer
cutover path
OpenShiftArgo CDGitLab CITerraform
source
main@8f4a2c1
scan
0 critical
build
image signed
policy
opa passed
deploy
blue/green
observe
slo healthy
rollout
100%
gates
SBOMpass
SASTpass
OPApass
cluster-a
cluster-b
registry
argo
GCP · GKE · E-Commerce Migration
Cloud migration for a business-critical web platform
Moved a legacy commerce stack toward GKE with containerized workloads, managed services, Terraform-managed Cloudflare, monitoring, load tests, and a controlled cutover path.
GKE
target runtime
Mapped
cutover plan
Observed
production signals
GCPGKEKubernetesTerraformPrometheus
SLO burn
0.42x
↓ 63% vs. last month
MTTR
7m
↓ 22m saved
Signal volume12 weeks
-74%
alerts
18
dashboards
12
runbooks
About
Felix Faust — senior engineer for products that need both code and production ownership.
I build and modernize web products when teams need someone who can move between frontend, backend, AI capabilities, cloud infrastructure, and operations without losing the bigger picture.
My work sits between architecture and implementation: I can align stakeholders on a credible target state, then build the product features, AI workflows, APIs, deployment paths, Kubernetes/OpenShift foundations, automation, and operating practices needed to get there. The goal is not dependency. The goal is software your team can extend and run safely after I leave.
Full-stack product delivery
Hands-on frontend, backend, API, integration, and production deployment experience.
Platform-minded engineering
Cloud, Kubernetes/OpenShift, CI/CD, observability, security controls, and clear ownership built into the delivery model.
Senior stakeholder communication
Technical detail translated into decisions, roadmaps, risks, and tradeoffs leadership can act on.
Applied AI enablement
LLM fundamentals, agentic frameworks, and AI product features explained, integrated, and handed over pragmatically.
Remote and DACH on-site
Flexible engagement model for focused audits, delivery support, and longer platform mandates.
Who I work with
Accountable lead, trusted specialist capacity when needed.
You work with me as the accountable technical lead. When it improves delivery, I bring in trusted independent specialists I already work closely with for backend, UI/UX, frontend, product design, or extra implementation capacity.
Software & platform delivery
Proscaler
Technology and implementation partner for scalable software and platform delivery.
www.proscaler.de/Product, frontend & design
Fuel Media
Digital product and media partner for frontend, design, and delivery-heavy web projects.
fuelmedia.de/Senior freelance network
Independent specialists
UX
FE
FS
A direct network of UI/UX designers and seasoned full-stack or backend developers I can involve when a project needs specialized knowledge or more delivery capacity.
Engagement
Budget ranges without turning senior work into rate shopping.
I publish engagement ranges to help both sides qualify fit early. Final scope depends on urgency, responsibility, duration, travel, delivery risk, and whether specialist capacity is needed.
Discovery
Focused review when you need a senior view on architecture, delivery risk, product feasibility, or a migration path before committing.
from €3k / review
- Architecture and codebase review
- Risk, effort, and roadmap clarity
- Written findings and next steps
- Can convert into delivery work
Engagement
Multi-week or multi-month mandate as senior full-stack engineer, platform engineer, or technical lead inside the team.
€8k-€25k / month
- 2-5 days per week
- Hands-on product, AI, and platform delivery
- Backend, frontend, cloud, and CI/CD
- Structured handover
- Optional specialist capacity
Stabilization
Time-critical support when a launch, migration, production system, CI/CD setup, or cloud platform needs senior intervention.
from €6k / week
- Fast technical triage
- Production, delivery, or migration focus
- Clear ownership during the critical phase
- Can become a longer engagement
FAQ
Before we speak.
Short answers to the questions that usually decide whether an engagement makes sense.
Are you mainly a DevOps freelancer?+
No. Platform and DevOps are a strong part of my profile, but I also take full-stack product responsibility across frontend, backend, APIs, AI integrations, cloud infrastructure, and production delivery.
Can you take implementation responsibility, not only advise?+
Yes. The strongest engagements combine architecture, hands-on implementation, and team enablement so decisions are validated in production-quality product code and operations.
Do you work alone or with a team?+
You work with me as the accountable lead. If a project benefits from more capacity or specialized knowledge, I can bring in trusted independent backend, frontend, UI/UX, product, or platform specialists I already work closely with.
Why show ranges instead of exact day rates?+
Exact rates make complex work look easier to compare than it is. Ranges help qualify budget early while leaving room for scope, urgency, responsibility, travel, risk, and specialist capacity.
Do you replace internal teams?+
No. I work with teams, close capability gaps, and make handover explicit so the organization becomes less dependent on external support over time.
What does the first call cost?+
Nothing. For emergencies, I do a quick evaluation first and then get to work. If you need more support afterwards, the emergency week can turn into a longer engagement.
First conversation
Let's talk about your product and platform.
Forty-five minutes, no obligation. We will clarify your current situation, technical risks, delivery goals, and whether I am the right person to help.
Contact & availability
Emailcontact@turtledev.net
Phone+49 151 151 4 6363
Response< 24 hours
LocationGermany · DACH