XML Programmer – Vehicles Team

iniBuilds

XML Programmer developing aircraft systems and logic for Microsoft Flight Simulator 2020 and 2024. Collaborating with project leads and designers to create compelling aircraft interactions.

Posted 8/3/2026contractRemote • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and maintaining aircraft systems using MSFS SDK XML and RPN logic, with a strong focus on managing MSFS Behaviors and ensuring compatibility across MSFS 2020 and MSFS 2024 projects.

Highest-signal resume keywords

MSFS SDK XMLRPN LogicMSFS BehaviorsAircraft Configuration FilesModular Package Architecture

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

XMLRPNMSFS SDKAircraft.cfgSystems.cfgPanel.cfgMSFS Package SourcesDebuggingOptimisationComplex Aircraft Systems

Soft Skills

Attention to DetailProblem-Solving

Tools & Technologies

MSFS 2020MSFS 2024SimObjectsModelBehaviorsPanels

Industry Keywords

Aircraft SystemsModular DevelopmentFS24 Modular Package ArchitectureGaugesTemplates

About the role

Key responsibilities & impact

Develop and maintain aircraft systems using MSFS SDK XML and RPN logic
Implement and manage Behaviors, Templates, and Components within the MSFS framework
Edit, configure, and maintain MSFS CFG files
Tune aircraft systems, avionics, and interactions through CFG and XML integration
Create, structure, and maintain MSFS package sources (SimObjects, ModelBehaviors, Panels, etc.)
Ensure compatibility across MSFS 2020 and MSFS 2024 projects
Debug, optimise, and refine existing systems for stability, realism, and performance
Follow MSFS SDK best practices to support future updates and modular development.

Requirements

What you’ll need

Solid knowledge of XML and RPN, specifically within the MSFS SDK
Strong experience working with MSFS Behaviors (animations, logic, interactions)
Ability to edit and manage aircraft configuration files (aircraft.cfg, systems.cfg, panel.cfg)
Ability to create, organise, and maintain MSFS package sources correctly
Good understanding of MSFS project structure and build workflow
Strong attention to detail and problem-solving skills
Experience with FS24 modular package architecture
Understanding of creating and maintaining modular packages for MSFS 2024
Experience with complex aircraft systems (electrical, fuel, avionics, etc.)
Familiarity with gauges, templates, macros, and reusable SDK components
Prior released MSFS aircraft or mods.

Benefits

Comp & perks

Competitive rates.
Opportunity to showcase your work and build your personal portfolio on high-profile, highly detailed aircraft projects.
A supportive, creative, and collaborative team environment.
Continuous learning and professional growth opportunities.