Custom Software Development
Web applications, internal platforms, portals, and operational systems designed around real business workflows.
Custom software for complex business operations
Bastion Infra designs, builds, and integrates reliable software for financial, accounting, operational, and document-heavy workflows.
From initial discovery to production deployment, we take responsibility for turning complex requirements into maintainable systems.
Conceptual delivery flow
Business workflows
Calculations
Documents
Existing systems
Bastion Infra delivery
Human-controlled engineering
Discovery, definition, AI-assisted engineering, testing, and controlled development.
Maintainable systems
Validated workflows
Systems integration
Production delivery
Discovery to production deploymentHuman review and approval remain in place
Selected clients
- Custom Development
- Process Automation
- Systems Integration
- Cloud Deployment
Software built around real business processes
We help companies replace fragmented spreadsheets, manual calculations, disconnected systems, and repetitive administrative work with dependable software.
Business Process Automation
Automation of repetitive financial, administrative, document, and operational processes.
Systems Integration
APIs, third-party platforms, government systems, accounting tools, payment services, and existing business software.
Financial and Accounting Systems
Software involving calculations, structured records, reporting, compliance-sensitive workflows, and document processing.
Cloud and Production Delivery
Testing, deployment, monitoring, backups, recovery planning, and ongoing technical support.
Where Bastion Infra creates value
We are most useful when the problem is too specific for standard software and too important for an unreliable prototype.
Manual Operations
Repetitive work carried out through spreadsheets, email, and disconnected tools.
Complex Calculations
Financial, accounting, pricing, tax, or operational logic where accuracy matters.
Disconnected Systems
Information duplicated across platforms that do not communicate properly.
Legacy and Internal Software
Existing systems that require modernisation, integration, or replacement.
Selected work
Accounting Workflow Automation
Development of a software platform for a Polish accounting office managing more than 350 clients. The system integrates invoice data, accounting calculations, document generation, automated validation, testing, and production workflows.
- KSeF Integration
- VAT and Contribution Calculations
- JPK Generation
- Automated Validation
- Production Deployment
Tailored Logistics Management System
Design and development of a custom system that enables the client to model and track each step of its individual logistics process—workflows that did not fit off-the-shelf logistics products. The system was built with Next.js, Supabase and PostgreSQL, Edge Functions, and local AI.
- Process-Specific Workflows
- Logistics Tracking
- Next.js
- Supabase and PostgreSQL
- Edge Functions
- Local AI
Debt-Based Crowdfunding Marketplace
End-to-end architecture and development of a greenfield crowdfunding platform using Next.js with hybrid server-side rendering and Supabase. The system supports fractional investment workflows across equity-, debt-, and royalty-based products, including investments, repayments, and schedule generation and tracking. Delivery covered the public application and a back-office platform for managing users, assets, fees, and financial reporting within a cross-functional Scrum team.
- Fractional Investments
- Investment and Repayment Flows
- Schedule Generation and Tracking
- Public Application
- Back-Office Administration
- Next.js Hybrid SSR and Supabase
A controlled path from business problem to reliable production system
01
Discovery
We clarify the business problem, users, workflows, calculations, integrations, risks, and expected outcomes before development begins.
02
Definition
We define the scope, architecture, delivery plan, acceptance criteria, responsibilities, and commercial structure.
03
AI-Assisted Engineering
We use structured AI-assisted development practices to increase delivery speed without sacrificing control.
Our workflows include defined agent instructions, reusable engineering skills, domain-specific business rules, coding standards, and structured review processes.
AI-generated work is treated as an implementation draft, not automatically trusted production code.
04
Test-Driven Reliability
Testing is a central part of delivery rather than an activity added at the end.
Depending on the system, testing can include:
- Unit testing
- Integration testing
- End-to-end testing
- Financial and calculation validation
- Regression testing
- API and integration testing
- Failure and recovery scenarios
- Automated CI/CD checks
- Manual verification of critical workflows
This is especially important for financial, accounting, regulated, and operational systems where small errors can create serious consequences.
05
Controlled Development
The system is delivered through structured iterations, regular demonstrations, code review, automated checks, and clearly defined acceptance criteria.
06
Production Delivery
We manage deployment, monitoring, backups, rollback procedures, recovery planning, documentation, and technical handover.
07
Continuous Improvement
After launch, we use production feedback and real operational data to improve reliability, performance, usability, and business value.
Modern technology without unnecessary experimentation
We use modern, production-ready technologies that improve delivery speed, maintainability, security, and system performance.
We actively adopt new tools when they create a clear advantage, including AI-assisted engineering, cloud infrastructure, automated testing, typed development environments, modern deployment workflows, and intelligent business automation.
We do not introduce technology simply because it is fashionable. Every technical decision must support the business requirements and remain maintainable after launch.
AI-Native Delivery
Defined agent workflows and reusable engineering instructions help us apply consistent standards across development tasks.
Domain-Specific Knowledge
Business rules, terminology, validation requirements, and process knowledge are documented and incorporated into the engineering workflow.
Human Accountability
Architecture, security, financial logic, critical calculations, and production changes remain subject to human review and approval.
Production Readiness
A feature is not considered complete merely because it works locally. It must be tested, reviewed, deployable, observable, and recoverable.
Software delivery partnerships
Bastion Infra works with consultancies, systems integrators, technology providers, and prime contractors that need dependable software delivery capacity.
We can contribute technical leadership, software engineering, systems integration, testing, deployment, and specialist delivery capacity according to the confirmed project scope.
Discuss a Partnership- Software development subcontracting
- Joint tenders
- Consortium cooperation
- White-label delivery
- Technical work packages
- EU-funded digitalisation projects
Complex systems need clear technical ownership.
Bastion Infra is built on a decade of hands-on software engineering across production financial systems, internal platforms, integrations, and development infrastructure.
Clients work directly with the engineer responsible for the technical decisions. We clarify the operational problem before writing code, make trade-offs explicit, and stay accountable through testing, deployment, and production.
When a project needs broader capacity, trusted specialists join the work without diluting ownership or responsibility.
Ivan Stanchev
Founder & Lead Software Engineer
+10 years building production software
View LinkedIn profileDirect Technical Ownership
One accountable technical lead from discovery through production.
Reliability Through Testing
Architecture, testing, deployment, monitoring, and recovery are designed into delivery from the start.
Capacity Without Diluted Ownership
Trusted specialists can join when scope requires it, while technical responsibility stays clear.
Strategic process and technology partnership
Bastion Infra
Improve the process before implementing the software
Bastion Infra works with Keystone to combine operational process review with custom software architecture and delivery. The joint model is designed for organisations whose challenge spans both how work is organised and how it should be digitised.
Automation creates the most value when it follows a clear, validated operating process.
Joint delivery model
- 01
Process audit and redesign
The joint team examines real workflows, responsibilities, bottlenecks, controls, and avoidable steps before the technical scope is agreed.
- 02
Software architecture and delivery
Bastion Infra translates the validated operating model into system architecture, integrations, custom software, testing, and production deployment.
Software is recommended only where it adds clear operational value.
Discuss This ApproachHave a complex process that should become software?
Tell us what currently depends on spreadsheets, repetitive work, disconnected systems, complex calculations, or manual decisions. We will help determine whether custom software is the right solution and what a sensible first step looks like.