We Build Software
That Matters
Dulo Solutions delivers end-to-end software development, strategic consulting, system maintenance, and outsourcing — turning complex challenges into elegant, scalable solutions.
Full-Spectrum Technology Services
From SAF-T tax compliance to full product delivery — we cover every stage of the software lifecycle with expertise and care.
SAF-T Solutions
End-to-end Standard Audit File for Tax compliance — readiness assessment, ERP data mapping, schema-valid SAF-T XML generation, reconciliation and automated submission for Bulgaria and the EU.
Software Development
Custom web, mobile, and enterprise applications built with modern technologies. From concept to deployment, we deliver robust, scalable solutions tailored to your business needs.
IT Consulting
Strategic technology guidance to align your IT infrastructure with business goals. We analyse, plan, and recommend solutions that maximise efficiency and competitive advantage.
System Maintenance
Ongoing support, monitoring, and maintenance of your software systems. We ensure uptime, security patches, and performance optimisation to keep your operations running smoothly.
Outsourcing
Augment your team with our expert developers and engineers. Flexible engagement models — dedicated teams, staff augmentation, or project-based outsourcing to fit your exact needs.
Information Systems
Design, development, and provisioning of comprehensive information systems. We build resilient data pipelines, management platforms, and enterprise software ecosystems.
Compliance & Licensing
We navigate regulatory frameworks to ensure your software activities are fully licensed and authorised. Operate with confidence, knowing every commercial activity meets legal requirements.
SAF-T Solutions — Standard Audit File for Tax
SAF-T is the OECD-standardised XML file that tax authorities use to collect your accounting, ledger, invoice and asset data directly from your systems. We build the pipeline that turns your ERP data into valid, reconciled, on-time SAF-T submissions — for Bulgaria and across the EU.
- SAF-T Bulgaria (NRA) — monthly, annual and on-demand files
- Works with SAP, Oracle, Microsoft Dynamics, NetSuite, Odoo and bespoke systems
- Automated schema validation and reconciliation before every submission
- Ongoing maintenance as tax authorities publish new schema versions
Readiness & gap analysis
We audit your ERP, ledger and master data against the SAF-T schema and hand you a prioritised remediation plan.
Data mapping & extraction
Chart of accounts, tax codes, customers, suppliers, products and movements mapped to the required SAF-T taxonomies.
XML generation & validation
Valid, schema-checked SAF-T XML with reconciliation reports so nothing is submitted before it balances.
Submission & managed support
Automated, scheduled generation and filing, plus corrections, monitoring and schema-version upgrades.
Transparent Hourly Rates
Development from €40 to €99 per hour, depending on seniority and the type of work. No hidden fees, no minimum retainer to get started.
Team Extension
A dedicated developer or engineer embedded in your team, reporting into your process and your stand-ups.
- Mid to senior developers
- Full-time or part-time allocation
- You own the backlog and priorities
- Monthly invoicing, 1-month notice
- Direct access, no account managers
Project Delivery
A complete delivery team — engineering, QA and project management — taking a scope from discovery to production.
- Cross-functional team
- Discovery, estimation and roadmap
- QA, CI/CD and release management
- Time & materials or fixed price
- Warranty period after go-live
Specialist & Compliance
Senior consulting for SAF-T implementations, system architecture, technology audits and rescue work.
- SAF-T readiness and implementation
- Architecture and technical due diligence
- ERP data and integration work
- Legacy system assessment
- Fixed-fee assessments available
Rates are quoted in EUR, exclusive of VAT, and depend on seniority, engagement length and technology.
Longer commitments and larger teams move you toward the lower end of each band.
Fixed-price quotes are available once scope is defined — the discovery call and initial estimate are free.
Building the Future,
One Line at a Time
Dulo Solutions is a technology company specialising in the full software lifecycle — consulting, development, provision for use, and long-term maintenance of software and information systems.
We also offer flexible outsourcing arrangements, allowing businesses of any scale to access world-class engineering talent and strategic guidance without the overhead of in-house teams.
All our activities that require permits or licensing are carried out strictly after the relevant authorisations have been duly obtained — you can trust us to operate with full legal and regulatory compliance.
Work With UsClient-First
Every decision is guided by your goals. We listen, understand, and deliver beyond expectations.
Technical Excellence
We write clean, maintainable code following industry best practices and modern standards.
Transparency
Open communication throughout every project — no surprises, no hidden costs.
Reliability
Consistent delivery on time and on budget, backed by a culture of ownership.
Technologies We Work With
Let's Build Something Great
Have a project in mind or want to explore how we can help? Drop us a message and we'll get back to you within one business day.