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Data Management Platform
UI/UX DesignWeb & Mobile Development+3
BACKEND & CLOUD
We ship reliable .
Enterprise-grade backend systems and cloud architecture - Node.js, AWS, Docker, Kubernetes, microservices, APIs. Built to scale, monitored 24/7.
API DEVELOPMENTCLOUD MIGRATIONMICROSERVICESCI/CD PIPELINESDATABASE DESIGNSERVERLESSCONTAINERIZATIONMONITORINGAPI DEVELOPMENTCLOUD MIGRATIONMICROSERVICESCI/CD PIPELINESDATABASE DESIGNSERVERLESSCONTAINERIZATIONMONITORINGAPI DEVELOPMENTCLOUD MIGRATIONMICROSERVICESCI/CD PIPELINESDATABASE DESIGNSERVERLESSCONTAINERIZATIONMONITORING
Cloud Infrastructure
Built for Scale, Engineered for Reliability
Every API request flows through a battle-tested pipeline: authenticated, processed, cached, and delivered in milliseconds.
Client RequestHTTPS / REST / GraphQL
Auth & SecurityJWT / OAuth 2.0 / RBAC
Business LogicMicroservices / API Gateway
Data LayerPostgreSQL / Redis / S3
Cloud InfraAWS / Docker / K8s
Response<200ms P95 latency
WHAT WE DO
Design Key's Backend and Cloud Development services
- 01
Backend for Web Applications
Robust server-side solutions that ensure functionality and optimal performance. We build and manage business logic, APIs, and infrastructure to provide smooth, high-performance web platforms.
- 02
Backend for Mobile Applications (iOS, Android)
Custom mobile backend development for different platforms and devices. Our team creates backends for both native apps (Java/Kotlin, Swift) and cross-platform apps (Flutter, React Native).
- 03
Cloud Infrastructure & Migration
Leverage the power and scalability of cloud computing with AWS, Azure, or Google Cloud. We design cloud-native architectures and migrate existing systems to reduce costs, enhance security, and enable elastic scaling.
- 04
API Development & Integration
RESTful and GraphQL APIs built for performance and reliability. We design clean API contracts, implement rate limiting and caching, and integrate with third-party services like payment gateways, CRMs, and analytics tools.
- 05
Database Architecture & Optimization
Choose the right database for your needs — PostgreSQL, MongoDB, Redis, or a combination. We design schemas, optimize queries, implement caching layers, and ensure data integrity at scale.
- 06
Microservices Architecture
Break monolithic applications into scalable, independently deployable services. We design service boundaries, implement inter-service communication, and set up service discovery and load balancing.
- 07
DevOps & CI/CD Pipelines
Automate your development workflow with Docker, Kubernetes, and modern CI/CD tools. We set up infrastructure as code, automated testing, continuous deployment, and monitoring dashboards.
- 08
Backend Refactoring & Modernization
Improve performance, maintainability, and scalability of existing backend systems. We implement code revisions, optimize server-side logic, upgrade dependencies, and modernize legacy architectures.
Who is it for?
Backend & cloud solutions for every stage of growth
Whether you're launching an MVP or modernizing enterprise infrastructure, we build backend systems that scale with your ambitions.
Startups
Need a reliable backend fast? We build MVPs with production-grade infrastructure from day one — APIs, databases, authentication, and deployment pipelines that scale with you from zero to thousands of users.
01Small and Medium-sized Enterprises
Outgrown your current infrastructure? We modernize legacy backends, optimize database performance, migrate to the cloud, and build the APIs and integrations that power your digital operations.
02Enterprises
Transform operations with microservices architecture, robust cloud infrastructure, and high-availability systems. We build backend platforms that meet enterprise security, compliance, and performance requirements.
03Architecture
Production-grade cloud architecture
We build scalable, secure, and maintainable backend systems using industry-proven technologies, microservices patterns, and cloud-native infrastructure.
Client
Web App
Next.js
Mobile App
React Native
Extensions
Chrome
Gateway
CDN
Cloudflare
API Gateway
NGINX
GraphQL
API Layer
Services
Auth
Auth0
Users
Node.js
Payments
Stripe
Email
SendGrid
Notifications
Twilio
AI Layer
LLM API
OpenAI
Claude
Anthropic
Vector DB
Pinecone
Orchestration
LangChain
Data
PostgreSQL
Primary DB
Redis
Cache
S3 Storage
Files
Search
Elasticsearch
Message Queue
Kafka
Infrastructure
AWS
Cloud
Docker
Containers
Kubernetes
Orchestration
CI/CD
GitHub Actions
Monitoring
Datadog
Microservices
Architecture
Auto-scaling
Infrastructure
99.9%
Uptime SLA
SOC 2
Compliance
Our Process
From requirements to production
Our proven backend development process with clear milestones, deliverables, and timelines.
Typical engagement: 10-14 weeks to first launch
AI-assisted engineering, human-led quality - we ship faster without cutting corners.
Typical engagement: 10-14 weeks to first launch
AI-assisted engineering, human-led quality - we ship faster without cutting corners.
Project Kickoff
Phase 1 of 5
1 weekWe review your current systems, traffic patterns, and growth plans, then agree on the scope, SLAs, and milestones for the backend work before any architecture is drawn.
Deliverables
Signed ContractSystems Audit NotesRequirements BriefProject Board SetupDiscovery & Design
Phase 2 of 5
2-3 weeksWe design the service architecture, data model, and cloud topology, and document the API contracts your frontend and partners will build against.
Deliverables
Architecture DiagramsAPI Contract SpecsData Model DesignCloud Cost EstimatePrototype & Testing
Phase 3 of 5
1-2 weeksA thin vertical slice proves the architecture: one real workflow running through the proposed stack under realistic load before we commit the full build to it.
Deliverables
Vertical Slice BuildLoad Test ResultsArchitecture ReviewRevised Build PlanDevelopment
Phase 4 of 5
4-6 weeksEngineers build the services, databases, and integrations with infrastructure as code and CI/CD from day one, so every change ships through a repeatable pipeline.
Deliverables
Production ServicesInfrastructure as CodeCI/CD PipelineAutomated Test SuiteLaunch & Growth
Phase 5 of 5
2+ weeksWe cut over to production with monitoring, alerting, and runbooks in place, then tune performance and costs against real traffic in the first weeks after launch.
Deliverables
Production CutoverMonitoring & AlertingOperations RunbooksCost Optimization Report
TECHNOLOGY STACK
Enterprise-grade backend technologies
We use battle-tested technologies trusted by Fortune 500 companies to build scalable, secure, and maintainable backend systems and cloud infrastructure.
NestJS
Express
Python
MongoDB
AWS
AzureGoogle Cloud
Terraform
- Postman
WHY US
Why choose Design Key for backend & cloud?
Your business is unique, and so should be your infrastructure. We collaborate with you to understand your needs, goals, and challenges to deliver backend solutions that align with your vision.
Customized Solutions
Your business is unique, and so should be your backend. We collaborate with you to understand your needs, goals, and challenges to deliver infrastructure solutions that align with your vision.
Expert Team
Our team of seasoned developers, DevOps engineers, and architects have years of experience across various industries. They are committed to delivering quality and innovation every step of the way.
Timely Delivery
We value your time and work in sprints to make our work productive and easy to track. Our agile development processes ensure that the solution is delivered on schedule without compromising on quality.
Rigorous Quality Assurance
Our QA engineers work hand in hand with developers to ensure top-notch testing and quality control. We implement automated testing, load testing, and security audits for every deployment.
Post-Launch Support & Monitoring
Our support doesn't stop when the work is done. We set up monitoring dashboards, alerting systems, and provide ongoing maintenance to ensure your systems perform well 24/7.
Transparent Communication
Dedicated managers keep our clients consistently informed about the project status and provide a clear view of every technical decision and its results.
Comparison
Why choose a dedicated backend partner?
See how working with Design Key compares to building in-house or hiring freelancers for your backend and cloud infrastructure needs.
Design Key
In-house Team
Freelancers
Offshore Agency
Scalable Team
Full support
Partial support
Not available
Full support
SaaS Expertise
Full support
Partial support
Partial support
Partial support
Cost Efficiency
Partial support
Not available
Full support
Full support
Speed to Market
Full support
Not available
Partial support
Partial support
Post-Launch Support
Full support
Full support
Not available
Partial support
Clear Communication
Full support
Full support
Partial support
Not available
AI-Powered Development
Full support
Partial support
Partial support
Not available
Quality Assurance
Full support
Partial support
Not available
Partial support
Project Management
Full support
Full support
Not available
Partial support
IP Protection / NDA
Full support
Full support
Partial support
Partial support
On-demand Resources
Full support
Not available
Not available
Partial support
Best For
Full-scale SaaS development
Long-term core team
Small, isolated tasks
Budget-conscious projects
Full support
Partial support
Not available
Design Key
Full-scale SaaS development
Scalable Team
Full support
SaaS Expertise
Full support
Cost Efficiency
Partial support
Speed to Market
Full support
Post-Launch Support
Full support
Clear Communication
Full support
AI-Powered Development
Full support
Quality Assurance
Full support
Project Management
Full support
IP Protection / NDA
Full support
On-demand Resources
Full support
In-house Team
Long-term core team
Scalable Team
Partial support
SaaS Expertise
Partial support
Cost Efficiency
Not available
Speed to Market
Not available
Post-Launch Support
Full support
Clear Communication
Full support
AI-Powered Development
Partial support
Quality Assurance
Partial support
Project Management
Full support
IP Protection / NDA
Full support
On-demand Resources
Not available
Freelancers
Small, isolated tasks
Scalable Team
Not available
SaaS Expertise
Partial support
Cost Efficiency
Full support
Speed to Market
Partial support
Post-Launch Support
Not available
Clear Communication
Partial support
AI-Powered Development
Partial support
Quality Assurance
Not available
Project Management
Not available
IP Protection / NDA
Partial support
On-demand Resources
Not available
Offshore Agency
Budget-conscious projects
Scalable Team
Full support
SaaS Expertise
Partial support
Cost Efficiency
Full support
Speed to Market
Partial support
Post-Launch Support
Partial support
Clear Communication
Not available
AI-Powered Development
Not available
Quality Assurance
Partial support
Project Management
Partial support
IP Protection / NDA
Partial support
On-demand Resources
Partial support
WHAT OUR CLIENTS SAY
Real results from real clients
0+Projects Delivered
0%Client Satisfaction
0+Team Members
0+Years Experience
"Daniel and his team have worked on several infrastructure development projects for me. They are excellent experts with exceptional client service and communication skills. Able to dig through complex project requirements and produce an end product that exceeds expectations."
Lori Barao
Manager of Operations, MMI Direct
Ready to get started?
Ready to build infrastructure that scales?
Schedule a 30-minute intro call with Daniel Killyevo, Founder and Technical Lead at Design Key. We'll discuss your backend architecture needs and how to build a system that grows with your business.
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100% Satisfaction
Dedicated Team
Reply in 1 Business Day
Case studies
Real projects we've shipped
Recent projects we built for clients - each one shipped, in production, and serving real users.
FAQ
Questions? Answers.
Common questions about our backend and cloud development services.
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