Mobile Software Development Engineer

Mobile Software Development EngineerAre you looking to work for a company that provides an innovative work environment, and your voice is heard? We have a position for a Mobile Software Development Engineer to work onsite with our client in the Troy, MI. This is a contract to direct hire opportunity.Who we are:LER TechForce is an industry leader in embedded controls, software, functional safety, and engineering talent. For over 20 years LER has been working with customers across North America to meet their engineering resource challenges. What you will be doing:The Mobile Software Development Engineer II with a strong embedded systems background to help us build the digital experience that connects owners to their vehicles. This is not a typical mobile app role. You will work directly with vehicle hardware protocols — CAN bus, BLE, SGIM — and own the software that makes the mobile app talk to the car. You bring the discipline of embedded systems engineering to a React Native environment, and you understand what it means to write code that has to work reliably when the vehicle is in motion, in poor connectivity, and under real-world conditions that a test suite cannot fully anticipate.You thrive in a fast-paced startup where ambiguity is part of the job, your decisions have a direct impact on the product, and working across hardware and software teams is the norm rather than the exception. You know when to ship and when to hold, and you make that call with conviction. What You Get to Do• Design, implement, and own mobile-to-vehicle communication features — including OTA software updates, key fob management, diagnostics, and vehicle signal interfaces — across both iOS and Android.• Work directly with vehicle communication protocols: CAN bus, BLE, and SGIM/AutoAuth architectures. Write and review code that interfaces with ECUs, parses DID/DTC data, and handles real-time vehicle telemetry.• Lead the definition, design, and delivery of embedded-adjacent mobile software that must be reliable, low-latency, and resilient to real-world hardware conditions.• Contribute to and own end-to-end quality: unit tests, integration tests, vehicle-in-the-loop tests on our software buck, and CAN/vector tooling coverage for all vehicle communication paths.• Collaborate with vehicle engineering, electrical engineering, and firmware teams to understand signal specs, protocol constraints, and DV milestone dependencies — and translate those into mobile software that just works.• Participate in and drive code reviews and architecture reviews with a high bar. You simplify aggressively and push back on unnecessary complexity.• Build features using React Native with a performance and reliability mindset informed by embedded systems discipline — thread safety, graceful degradation, and deterministic behavior matter here.• Mentor teammates and contribute to a culture where engineering craft and customer outcomes are held together, not traded off against each other.• Help define best practices for mobile-to-vehicle communication patterns that the team can build on for years. What you'll need to be successful:Essential:• Bachelor of Science in Computer Science, Electrical Engineering, Computer Engineering, or equivalent professional experience.• 4+ years of professional software development experience, with at least 2 years in mobile (iOS, Android, or React Native) and demonstrated experience working with or adjacent to embedded systems or vehicle software.• Hands-on experience with serial communication protocols: CAN bus, BLE, UDS, or equivalent. You have written code that talks to hardware, not just APIs.• Proficiency in at least one systems language (C, C++) alongside a modern application language (TypeScript, Kotlin, Swift). You can read and reason about firmware or ECU diagnostic specs.• 2+ years of experience contributing to software architecture and design — not just implementing tickets, but shaping how systems are built.• Strong command of the full software development lifecycle: version control, code review, CI/CD pipelines, testing strategy, and production operations.• Experience with automotive diagnostics concepts: DTCs, DIDs, ODX/PDX specifications, or OBD-II tooling is a meaningful advantage. Preferred:• Experience with React Native and cross-platform mobile development in a production environment.• Familiarity with AutoAuth, SGIM, or comparable vehicle-to-mobile security architectures.• Experience with CAN/Vector tooling (CANalyzer, CANoe, or equivalent) or building automated test harnesses for vehicle communication paths.• Background in OTA update systems for connected devices or vehicles.• Experience on a software buck, hardware-in-the-loop (HIL), or similar physical test environments.• Familiarity with Datadog, k6, or similar observability and performance tooling in a mobile context.What you'll get:Full benefits: medical, dental, vision, and paid time off 401K with a matchShort-term & Long-term disability, life insurance, and other optional benefitsOngoing professional development opportunities including Technical Training and Leadership DevelopmentThe opportunity to work on industry leading projects