Software Integration Engineer

Merlin Labs

. Develop and maintain C++ and Python software connecting aircraft avionics, simulation models, test hardware, and engineering tools .

Posted 10/22/2026full-timeBoston • Massachusetts • United StatesMid-LevelSenior💰 $130,000 - $175,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Proficient in developing and debugging C++ and Python software for aircraft avionics and simulation systems, with strong experience in integrating hardware interfaces and real-time execution. Familiar with Linux environments, networking protocols, and telemetry systems, demonstrating the ability to collaborate effectively with engineering teams.

Highest-signal resume keywords

C++ Software DevelopmentPython Software DevelopmentLinux Systems ProficiencyUDP/TCP NetworkingHardware Integration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C++PythonLinuxUDPTCPARINC 429CANGitDockerGL Studio

Soft Skills

CommunicationCollaborationProblem-SolvingIndependenceAdaptability

Tools & Technologies

JiraSystemdCross-CompilationEmbedded LinuxRust

Industry Keywords

AvionicsTelemetrySimulation ModelsHardware-in-the-Loop TestingFlight-Test Displays

Tech Stack

Tools & technologies

DockerJavaScriptLinuxPythonReactRustSQLTypeScriptC++

About the role

Key responsibilities & impact

Develop and maintain C++ and Python software connecting aircraft avionics, simulation models, test hardware, and engineering tools
Implement software components and hardware interfaces within the established architecture, contributing to design decisions and code reviews
Integrate UEI PowerDNA equipment through vendor SDKs, low-level I/O APIs, and hardware abstraction layers
Configure and validate ARINC 429, CAN, serial, analog, and discrete interfaces using aircraft interface control documents
Support real-time execution of aircraft simulation models, including periodic processing, I/O exchange, watchdogs, and performance diagnostics
Develop and maintain telemetry interfaces and data-processing components using UDP, TCP, and messaging systems
Contribute to asynchronous Rust services for telemetry ingestion, timestamp alignment, flight-test displays, and session recording
Build operator displays and diagnostic tools using GL Studio, React, HTML5, SQL, and web APIs
Build, deploy, and troubleshoot software on Linux hosts and embedded targets using cross-compilation, packaging, systemd, and Docker workflows
Write unit tests, Python-based smoke tests, and hardware integration tests; reproduce defects and add regression coverage
Collaborate with avionics, aircraft software, flight dynamics, and lab engineers to diagnose software, network, and hardware issues
Maintain code and configuration changes in Git, track work in Jira, and document interfaces, deployment steps, and troubleshooting procedures
Help develop and maintain hardware-in-the-loop test environments for exercising aircraft systems and resolving integration issues before flight

Requirements

What you’ll need

Proficiency developing and debugging modern C++ and Python software
Strong working familiarity with Linux host systems, including command-line tools, software builds, dependencies, services, permissions, networking, and diagnostics
Experience integrating software with physical hardware, external systems, or vendor libraries and APIs
Understanding of resource management, multithreading, synchronization, and error handling in C++
Familiarity with UDP/TCP networking and binary data formats, including byte order, message framing, and input validation
Familiarity with timing-sensitive software concepts such as periodic execution, buffering, latency, and watchdogs
Ability to interpret technical documentation and interface definitions and translate them into working software and tests
Experience using Git for collaborative development, automated testing, and Jira or comparable issue tracking
Familiarity with Docker-based application deployment
Willingness to learn Rust, embedded Linux deployment, and avionics interfaces with support from experienced engineers
Ability to work independently on assigned components, communicate progress and blockers, and seek guidance when needed
Ability to work regularly onsite in the Boston lab to integrate and troubleshoot physical equipment
Applicants must be authorized to work in the United States without visa sponsorship now or in the future
Successful background and reference checks required
Nice-to-have: Experience with UEI PowerDNA/PDNA SDKs or comparable data acquisition and avionics interface platforms
Nice-to-have: Familiarity with ARINC 429, CAN, and RS-232/RS-422 serial interfaces
Nice-to-have: Experience with embedded Linux, ARM targets, cross-compilation, CMake, Yocto SDKs, Debian packaging, or systemd services
Nice-to-have: Experience with Rust, particularly asynchronous programming using Tokio, serde, or axum
Nice-to-have: Experience integrating or troubleshooting low-level I/O APIs, device drivers, or hardware abstraction layers
Nice-to-have: Experience with hardware-in-the-loop testing, aircraft simulation, or integrating generated simulation models into C++ applications
Nice-to-have: Familiarity with telemetry systems, timestamp synchronization, IRIG time, or flight-test displays such as IADS
Nice-to-have: Experience with GL Studio, React and JavaScript/TypeScript, HTML5, SQL, or REST APIs
Nice-to-have: Experience with GoogleTest, pytest, parser fuzzing, or continuous integration using GitHub Actions
Nice-to-have: Familiarity with ZeroMQ, session recording, S3 storage, or simulation replay workflows
Nice-to-have: Aviation experience through professional work, flight simulation, or a pilot’s license

Benefits

Comp & perks

Catered lunches with rotating menu
Snacks and beverages, including coffee and tea
Health insurance
Dental insurance
Life insurance
Flexible paid time off
401(k) with match
Work/life integration
Professional development support
On-site work perks
Equal opportunity employer
Reasonable accommodation in the application and selection process