Services • Software & Salesforce

Software that fits the way you work.

Custom software, reliable API integrations, and Salesforce solutions designed around your organisation. Practical engineering that streamlines your operations and eliminates manual bottlenecks — from focused tools that save hours of spreadsheet work to enterprise data synchronisation.

Core Capabilities

Practical engineering for complex business challenges.

From custom API middleware and Salesforce automation to modernisation of older software, we deliver reliable code built for long-term operational resilience.

Custom Tools & Web Applications

Purpose-built internal tools, portals, and web utilities tailored precisely to how you work. From a focused tool that automates repetitive weekly tasks to multi-user business portals without vendor bloat.

Salesforce & Apex Development

Custom business logic, Apex triggers, batch processing, and Flow automations designed strictly within Salesforce governor limits and enterprise development best practices.

API Development & Integrations

Robust connections between Salesforce, ERPs, accounting platforms, inventory systems, and external web services. Monitored REST endpoints, webhooks, and transactional data synchronisation.

Legacy System Modernisation

Incremental refactoring and upgrading of aging applications. Containerising older stacks, upgrading runtimes, and exposing modern APIs without disrupting daily business.

Workflow & Process Automation

Eliminating manual, error-prone data entry and repetitive operations with deterministic background workers, message queues, and event-driven automation.

Docker, Databases & CI/CD

Reproducible containerised environments, relational database modelling, automated test suites, and streamlined Git-based continuous delivery pipelines.

The Independent Difference

Direct engineering without corporate overhead.

Large enterprise consultancies often assign junior developers guided by multiple layers of non-technical project managers. The result is protracted timelines, inflated costs, and solutions burdened with unnecessary complexity.

Koster CX provides high-touch, experienced development. Whether you are a growing business, a non-profit managing resources carefully, or an established company with complex integrations, you work directly with a senior engineer who understands your business objectives, writes clean, tested code, and communicates progress clearly at every step.

Direct Engineering

Immediate technical insight without endless account management layers.

Pragmatic Architecture

Practical technology choices designed to solve actual business problems cleanly.

Engineering & Integration Standards

  • Governor Limit Compliance: Bulkified Apex and efficient query structures built to scale safely.
  • Resilient Error Handling: Asynchronous retry queues and alerting to prevent lost transactions.
  • Thorough Test Suites: Unit and integration tests covering edge cases, not just basic coverage thresholds.
  • Secure Credential Management: Named Credentials and environment secret isolation with no hardcoded tokens.
  • Complete Code & Schema Handover: Clear architecture schemas and repository ownership with no lock-in.

Practical Application

Software & integrations in practice

See how structured API integrations solve complex data challenges and eliminate manual friction.

Featured Case Study

Technical Insight

Common Questions

Frequently asked questions

Common queries regarding custom software architecture, Salesforce development, and integrations.

Do you only take on large enterprise software projects?

Not at all. We often help small businesses and non-profit organisations automate manual tasks (such as synchronising form submissions to a database or connecting an accounting tool via webhooks) that save hours of manual work every week. No project is too small if it solves a genuine operational bottleneck.

What Salesforce editions and tools do you work with?

We work primarily with Salesforce Enterprise and Unlimited editions, covering custom Apex development, SOQL/SOSL optimization, Lightning Web Components (LWC), Platform Events, and complex Flow automations.

Can you integrate Salesforce with external ERP or custom systems?

Yes. We build two-way integrations using standard REST APIs, composite requests, and custom Apex REST services with proper authentication (OAuth 2.0), retry queues, and rate limit protections.

How do you approach legacy codebases that have little documentation?

We start by auditing the existing codebase, identifying critical business workflows, and writing integration tests around existing behaviour before refactoring or containerising the application.

Do I get full ownership of the source code and documentation?

Yes. All source code, Apex classes, integration definitions, deployment scripts, and architectural documentation are committed directly to your version control repositories with zero licensing restrictions.

Have a custom software or Salesforce project?

Let's discuss your technical challenges, integration endpoints, and workflow goals.