Independent enterprise software consultancy

Enterprise software.
From architecture
to delivery.

Senior software consultant. Hands-on delivery.

Enterprise applications, integrations and workflows. Deep Mendix expertise with hands-on engineering, architecture and performance optimization.

Mendix Expert Developer9+ years enterprise experience · Netherlands
ENTERPRISE ARCHITECTURESEF SOLUTIONS
FROM ARCHITECTURE TO DELIVERY
02 / APPLICATIONS

Business-critical applications built with Mendix and hands-on software engineering, with clear architecture and maintainable business logic.

Select a layer to explore
APPLICATIONS · AUTOMATION · INTEGRATION · PERFORMANCEExplore what’s possible ↓

Enterprise software.
Senior technical ownership.

ApplicationsAutomationIntegrationPerformance
01 /Clarity before complexity

Technology is rarely
the problem.
Complexity is.

Complexity grows where applications, integrations, business rules and data meet.

SEF Solutions brings clarity to background processes, external systems and operational dependencies. The result is software your team can understand, operate and maintain.

BUSINESS PROCESSESRequests. Approvals. Handovers.
APPLICATION ARCHITECTUREBusiness rules. Operational dependencies.
WorkflowsTasks & processes
IntegrationsAPIs & services
DataModels & access
02 /Enterprise software expertise

Technical depth.
Across the enterprise.

Five connected disciplines. One senior technical partner. From the first architecture decision to production.

01 / APPLICATION ENGINEERING

Enterprise Application Engineering

Business-critical applications, built with deep Mendix expertise and hands-on software engineering.

MendixJavaJavaScriptTypeScriptReact
Explore the approach

Define clear application boundaries, implement complex business logic and modernize existing systems. Architecture, maintainability and scalability guide the work from the domain model to the user interface.

Discuss this challenge
02 / PROCESS AUTOMATION

Process & Workflow Automation

Turn fragmented processes into automated workflows, with clear business rules and operational visibility.

Workflow orchestrationBusiness rulesTask queues
Explore the approach

Connect user tasks, decisions and system actions. Use asynchronous processing and task queues for background work, with exception handling and operational monitoring to keep the process traceable.

Discuss this challenge
03 / ENTERPRISE INTEGRATION

Enterprise Integration

Connect applications and external systems through reliable APIs and clear integration boundaries.

RESTSOAPODataSAPAPIs
Explore the approach

Design system integrations around authentication, data mapping, retries and failure handling. Connect SAP and other enterprise services with interfaces that remain understandable as the landscape changes.

Discuss this challenge
04 / PERFORMANCE
Illustrative performance optimization
  1. High latency
  2. Analyze
  3. Optimize
  4. Fast response

Performance Engineering

Find and resolve bottlenecks in applications, databases and background processing.

SQLOQLSearchTask queues
Explore the approach

Start with measurement. Trace expensive queries and high-volume processing paths, optimize database access and background tasks, then validate the changes against a representative workload.

Discuss this challenge
05 / DEEP MENDIX EXPERTISE

Mendix Architecture & Delivery

Senior Mendix expertise. From application architecture and implementation to performance and delivery.

Mendix Expert DeveloperJava actionsOQLDeployment
Explore the approach

Connect application architecture to hands-on delivery: domain models, microflows, Java actions, integrations and task queues. Address performance and deployment as part of a maintainable application lifecycle.

Discuss this challenge
03 /From challenge to delivery

Strategy matters.
Execution matters more.

Architecture and implementation stay closely connected. From understanding the challenge to hands-on technical delivery.

  1. 01

    Understand

    Understand the process, technical landscape and actual problem.

  2. 02

    Architect

    Define a solution that is robust without unnecessary complexity.

  3. 03

    Build

    Hands-on engineering and implementation.

  4. 04

    Integrate

    Connect the solution to the surrounding enterprise landscape.

  5. 05

    Optimize

    Measure, simplify and improve.

04 /Selected experience

Real systems.
Real engineering.

Anonymised examples from enterprise engagements. Technical challenges, grounded in operational reality.

CASE 01 · APPLICATIONS & WORKFLOWS

Enterprise Pricing Platform

Design and development of a business-critical enterprise application supporting complex pricing and approval processes.

Enterprise ApplicationsMendixSAP Integration
Technical scope

Complex business rules, enterprise integrations and approval workflows combined within a maintainable application architecture.

Workflow AutomationPerformance
Discuss a similar challenge
CASE 02 · ASYNCHRONOUS PROCESSING

High-Volume Enterprise Processing

Designing reliable asynchronous processing for large volumes of enterprise data and background tasks.

Task QueuesData ProcessingPerformance
Technical scope

Processing large workloads reliably while maintaining predictable application performance and operational visibility.

MonitoringArchitecture
Discuss a similar challenge
05 /The technical landscape

Technology is a tool.
Architecture is the advantage.

A connected stack, chosen for the work. From application logic and enterprise integrations to data, deployment and automated workflows.

Application Engineering

Enterprise applications, interfaces and custom business logic. Deep Mendix expertise, supported by hands-on software engineering.

  • Mendix
  • Java
  • JavaScript
  • TypeScript
  • React
Explore the pricing platform

Integration

Connect enterprise systems through APIs and clear interfaces. Bring applications, SAP and external services into one working process.

  • REST
  • SOAP
  • OData
  • SAP
  • Enterprise APIs
See integration in practice

Data & Search

Efficient queries, indexed search and structured access to enterprise data.

  • PostgreSQL
  • SQL
  • OQL
  • Apache Lucene
Explore search & data access

Platform

Deployment, containers and the environments applications run in.

  • Docker
  • Linux
  • AWS
  • Kubernetes
Explore the delivery approach

Automation

Coordinate workflows, business rules and background processing.

  • Task Queues
  • Workflow Automation
  • Background Processing
Explore enterprise processing
The independent advantage

Senior expertise.
Direct technical
ownership.

Discuss a project
01

Hands-on

Architecture and implementation are handled by the same senior technical expert.

02

Enterprise minded

Solutions are designed around reliability, integration, maintainability and operational reality.

03

Outcome focused

Technical decisions should improve an actual business process or system.

04

Independent

Advice based on technical fit, maintainability and business requirements.

Sefa Küçükdemirci, founder of SEF Solutions
Sefa KüçükdemirciFounder · Senior software consultant
06 /The engineering behind SEF Solutions

Built from engineering.
Not presentations.

Independent enterprise software consultancy, built on hands-on architecture and engineering.

The person designing your solution should understand how it is built. That principle guides SEF Solutions across applications, integration, automation and performance.

9+ years of experience with enterprise applications and Mendix, focused on making complex technology easier to operate, maintain and evolve.

Mendix Expert DeveloperBased in the Netherlands
Sefa on LinkedIn
07 /Discuss a project

Complex challenge?
Let’s make
it simpler.

Enterprise applications, integrations, automation and performance.

info@sefsolutions.nl
NetherlandsDirect contact. Senior ownership.
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