Engineering Services

Avionics Certification Services

DO-178B/C, DO-254, and DO-278 expertise across full lifecycle development, verification, audits, and training.

End-to-End
Compliance Coverage

Planning, development, verification, and certification liaison — all under one roof.

In-House
Team Capability

Vozwin engineers and auditors with hands-on DO-178/DO-254/DO-278 experience. No outsourcing.

On Time
Delivery Record

Evidence-driven processes and tool-qualified workflows reduce rework and keep programmes on schedule.

Tailored
Engagement Model

Scaled services for OEMs, Tier 1/2 suppliers, and new market entrants. From full lifecycle to targeted gap work.

Standards Coverage

Three standards. Full DAL coverage.

DO-178B/C
Airborne Software

Software Considerations in Airborne Systems and Equipment Certification. The governing standard for safety-critical airborne software across all Design Assurance Levels.

DAL ADAL BDAL CDAL DDAL E
DO-254
Airborne Electronic Hardware

Design Assurance Guidance for Airborne Electronic Hardware. Covers FPGAs, ASICs, PLDs, and complex custom hardware for safety-critical avionics systems.

Design Assurance Level ADesign Assurance Level BDesign Assurance Level C
DO-278
Ground-Based Software

Guidelines for CNS/ATM systems. The DO-178 equivalent for software in ground-based safety-critical air traffic management and communications infrastructure.

Assurance Level 1Assurance Level 2Assurance Level 3Assurance Level 4Assurance Level 5
Service Scope

Full lifecycle or targeted engagement.

Whether you need full lifecycle ownership or a targeted independent audit, Vozwin scales to your programme.

01
Planning & Process Definition

Development of PSAC, SDP, SVP, and SCMP aligned to your DAL and project scope. Process definition that builds traceability from the start.

02
Development & Implementation

Requirements capture, software architecture, detailed design, and coding standards implementation. Evidence-driven from day one.

03
Verification & Testing

Requirements-based testing, structural coverage analysis (MC/DC, statement, decision), peer reviews, and independence verification. Tool qualification per DO-330.

04
Gap Assessments & Audits

Independent SAS readiness reviews, DAS audits for DO-254, and gap analysis against current FAA/EASA/Transport Canada guidance.

05
Certification Liaison

Coordination with Transport Canada, FAA, and EASA DERs throughout the campaign. Issue Paper management, SOI audit preparation, and DER coordination.

06
Training Programs

Hands-on DO-178C, DO-254, and DO-278 training for engineering and management teams. Practical workshops covering objectives, evidence, and common DER findings.

Full Lifecycle Support

We engage at any phase.

Most programmes benefit most from early involvement. We can also step in mid-stream for gap work, audits, or DER support.

01
Concept
Standards applicability, DAL determination, certification basis
02
Planning
PSAC / PHAC, process definition, tool qualification strategy
03
Development
Requirements, architecture, design, implementation, standards compliance
04
Verification
Reviews, testing, coverage analysis, independence
05
Certification
SAS / DAS, SOI audits, DER coordination, authority liaison
06
Continued Support
Post-cert modifications, SCM, problem reporting, training
Who We Serve

Built for aerospace programmes of all sizes.

OEMs & Airframers

Full lifecycle certification support integrated into your development programme from PDR onward.

Tier 1 / Tier 2 Suppliers

Component-level DO-254 and DO-178C support for avionics hardware and embedded software deliverables.

New Market Entrants

UAV manufacturers and eVTOL startups — we help teams unfamiliar with certification navigate the process without costly missteps.

CNS/ATM & Ground Systems

DO-278 compliance for ground-based safety-critical software in air traffic management and communications infrastructure.

Why Vozwin

We Build the Systems.
We Certify Them Too.

Most certification consultancies advise from the outside. Vozwin builds avionics and UAV systems — which means our engineers understand what certification requirements look like from inside a real development programme, not just from a checklist.

That gives us a practical advantage: we know where programmes lose time, where evidence gaps appear under DER scrutiny, and how to structure a compliance argument that holds up through Stage of Involvement audits.

No outsourcing

Vozwin's own engineers and auditors — not subcontractors. You get the same people on calls as you get in the reviews.

Early engagement saves money

A DO-178C process built correctly at PDR costs a fraction of a retrofit. We help you build it right the first time.

Tool qualification included

Evidence-driven workflows with qualified tools under DO-330 — reducing rework and strengthening your SAS.

Regulatory fluency

Transport Canada, FAA, and EASA. We navigate the differences so you don't have to learn three certification regimes.

Ready to accelerate your certification?

Tell us where you are in your programme and we'll scope the right level of engagement.