Backend Development Services
Backend development for APIs, integrations, data pipelines, and reliable product infrastructure.
We build backend systems for products that need reliable APIs, integrations, data flows, and operational stability. This service is deliberately technology-agnostic: the focus is system design, scalability, security, and maintainable delivery rather than a fixed stack. Java and Spring are common but not required. From modular monoliths to distributed event-driven platforms, we build backends meant to support real products under production load.
What We Deliver
Microservices & System Architecture
- Monoliths, microservices, modular architectures
- DDD, Event-Driven Architecture, CQRS
- API gateways, service discovery, messaging
- Stack selection based on requirements (e.g., Java/Kotlin, Node.js, Go)
- Outcome: architecture that scales cleanly with clear ownership and boundaries.
Database Engineering
- PostgreSQL 14–16, ClickHouse, Oracle, Redis
- Data modeling, indexing, partitioning
- High-throughput analytics, OLAP queries
- ETL pipelines (Batch + Streaming)
- Outcome: reliable data models and transparent data flows.
API Development & Integrations
- REST API design (OpenAPI/Swagger)
- SOAP services for enterprise systems
- GraphQL APIs
- Event streaming: Kafka
- High-performance RPC with gRPC
- Third-party system integrations (ERP, CRM, fintech, logistics)
- So frontends, partners, and legacy systems stay connected without fragile workarounds.
Security & Authorization
- Spring Security
- Keycloak, Apereo CAS
- OAuth2, SSO, MFA, JWT
- Role-based access control (RBAC)
- Audit trails & compliance workflows
- Outcome: secure access control and audit-ready systems.
Reporting & Analytics
- PDF, XLS, CSV generation
- BI integrations
- Custom reporting APIs
- Data aggregation (OLAP/ClickHouse)
- Outcome: reporting that supports decisions and compliance.
Performance & Reliability
- JUnit 5, Testcontainers
- Load testing and profiling (CPU, memory, SQL)
- Caching strategies (Redis)
- Fault-tolerant design patterns, retries, and circuit breakers
- So systems remain stable under peak load and incidents are diagnosed faster.
When You Need Backend Development
This service is ideal for companies that:
Tools & Technologies
Languages & Frameworks
- Java 21
- Spring Boot
- Spring Cloud
- PF4J
- OSGi
Databases
- PostgreSQL
- ClickHouse
- Oracle
- Redis
Protocols
- REST
- SOAP
- GraphQL
- Kafka
- gRPC
- WebSocket
Security
- Spring Security
- Keycloak
- CAS
- JWT
- OAuth2
- MFA
- SSO
Testing & Optimization
- JUnit 5
- Testcontainers
- JProfiler
- YourKit
- SQL optimization
Infrastructure
- Docker
- Kubernetes
- Nginx
- CI/CD pipelines
Every engagement begins with an Architecture Sprint
Five working days. One senior engineer. A clear map of system boundaries, scaling risks, stack decisions, and a delivery roadmap — before a single line of production code.
- 01Day 1
Discovery: domain, constraints, growth targets
- 02Day 2
System mapping: services, data, integrations
- 03Day 3-4
Stack decisions and risk model
- 04Day 5
Roadmap & costed delivery plan
Ready to start with architecture, not features?
Five days. One senior engineer. A clear path forward.
Or talk to us first Get in touch
Founder-relevant case studies
Vulken FM
Inspection & Asset Management Platform - Internal survey and compliance system for facilities management with mobile inspection app and web-based admin platform.
PlayDeck - Powering Telegram's Gaming Ecosystem
How we built the backend architecture for Telegram's fastest-growing gaming platform.
EventStripe
Event Management & Payment Processing Platform - Scalable event ticketing and payment processing system.
Creator Marketing Platform - Engagement Services Marketplace
End-to-end engineering for a multi-tenant creator marketing platform: Java Spring backend, Next.js dashboard, admin console, and a provider-aggregated catalog of 1,200+ services across thirteen platforms.
VTB Bank
Real-Time Data Streaming Platform - High-performance data-streaming platform capable of processing millions of financial messages per second.
Societe Generale
Personalized Advertising & Credit Service Platform - Advanced financial services with real-time personalization.
Sber
Enterprise Data Analytics Platform - Comprehensive data processing and analytics solution for Russia's largest bank.
Togezzer - Social Commerce Platform
Creating a seamless social shopping experience with real-time recommendations.
FAQ
We select technologies based on system requirements. Java/Spring is a core stack for complex backends, but this page focuses on backend delivery overall. For JVM-specific delivery, see Java Development Services.
Yes. We implement SSO, OAuth2, MFA, RBAC, audit logs, and full enterprise authentication flows.
Yes. We work with REST, SOAP, Kafka, gRPC, and can connect to ERPs, CRMs, payment systems, and custom enterprise software.
Yes — we design and build streaming, event-driven, and horizontally scalable architectures, including systems used in banking, telecom, and SaaS environments.
Yes — we handle full migrations from monoliths, outdated Java versions, or legacy enterprise stacks.
Keep reading from the blog
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