Firmware Engineer - I

modern C++ (C++17/20)

Core Technical Responsibilities-

Modern Embedded C++ Development

• C++17/20 constructs: constexpr, structured bindings, lambdas with capture, fold expressions
• Template metaprogramming, CRTP, type traits, and SFINAE-based architecture
• Zero-overhead abstraction using value categories, move semantics, and static polymorphism
• Strong STL use: std::variant, std::optional, std::array, std::span, and allocators
• Custom memory pools, ring buffers, and fixed-size containers for allocation-free runtime
• Compile-time configuration, traits-based component wiring, and feature toggling
  

Real-Time Robotic Control Logic

• Cyclic and event-driven schedulers with millisecond- and microsecond-precision resolution
• Tick-accurate rate-grouped control loops (e.g., 100Hz, 400Hz, 1kHz)
• Cooperative and preemptive task design with determinism and timing guarantees
• Latency profiling and jitter minimization via DWT counters or hardware timers
• FSM/HSM state machine design with real-time transitions and priority resolution
• Implementation of bounded delay, hard real-time response systems
  

Mathematical Modeling for Robotics

• Vector/matrix math using Eigen or equivalent expression-template math libraries
• Coordinate transforms: SE(2)/SE(3), quaternion handling, rotation matrices
• Kalman filters (EKF/UKF), sensor fusion, prediction pipelines
• Control systems: PID, state-space control, LQR
• Jacobian-based kinematics, inverse dynamics, torque models
• Linear algebra: LU, QR decomposition, eigenvalues/eigenvectors
• Fixed-point math for deterministic runtime modeling on MCUs
  

Embedded Cryptography & Secure Firmware

• Symmetric crypto: AES-CTR/GCM, ChaCha20-Poly1305
• Asymmetric crypto: ECC (Curve25519), RSA-2048
• Hashing and message auth: SHA-256, HMAC, CMAC
• Secure firmware update pipelines, image signing, anti-rollback logic
• RNG and nonce strategies for handshake protocols
• Constant-time algorithm design for side-channel resistance
• Key management and tamper detection logic
  

Software Architecture and Verification

• Policy-based and layered architecture for hardware-abstraction, logic, and scheduler decoupling
• Strong separation of concerns and compile-time interface injection
• Unit tests with mocks/stubs using GoogleTest, Catch2, or Trompeloeil
• Static analysis with Clang-Tidy, Cppcheck, and sanitizers (ASan, UBSan)
• Host-based simulation of embedded control logic with reproducible test cycles
• Build system mastery with CMake (interface targets, generator expressions, cross-compilation)
  

Preferred Qualifications

• B.Tech / M.Tech in Embedded Systems, Computer Engineering, Robotics, or Applied Mathematics
• 3+ years of experience in high-performance real-time firmware development
• Background in real-time robotics, motion planning, or control systems
• Exposure to secure systems, embedded cryptographic libraries, or robotics middleware
• Demonstrated ownership of real-time firmware modules in production or research robots