Compiler Engineer

5 days ago

Bengaluru, Karnataka, India Ideaon Full time ₹ 8,00,000 - ₹ 24,00,000 per year

Job Summary:

We are seeking a highly skilled
CLANG/LLVM Compiler Engineer
to join our compiler development team. The ideal candidate will have hands-on experience with
LLVM/CLANG infrastructure
,
code generation
, and
optimization pipelines
, and will contribute to building high-performance compiler toolchains for modern architectures. You will work closely with software and hardware teams to enable
next-generation compiler features
, improve
compile-time and runtime performance
, and support
cross-platform development
.

Key Responsibilities:

  • Design, implement, and maintain compiler features within the
    LLVM/CLANG ecosystem
    , including front-end, middle-end, and back-end passes.
  • Work on
    language front-end enhancements
    , code transformations,
    static analysis
    , and diagnostics in CLANG.
  • Develop and optimize
    LLVM IR passes
    , including
    loop optimizations, vectorization, inlining
    , and
    code generation for target architectures
    .
  • Improve
    compiler performance
    , including
    compile-time optimizations, memory usage, and build throughput
    .
  • Implement
    tooling and infrastructure
    for static/dynamic analysis, code instrumentation, and profiling.
  • Collaborate with hardware teams to support
    new CPU/GPU features
    and enable
    architecture-specific optimizations
    .
  • Debug and maintain
    compiler toolchains
    , ensuring correctness, reliability, and performance across platforms.
  • Participate in code reviews, design discussions, and provide technical guidance to team members.
  • Contribute to
    open-source LLVM/CLANG community
    when appropriate, maintaining alignment with upstream standards.

Required Qualifications:

  • Strong programming experience in
    C/C++
    , with
    modern C++ (C++11/14/17/20)
    preferred.
  • Hands-on experience with
    LLVM/CLANG internals
    : IR, passes, code generation, and optimizations.
  • Experience with
    compiler design
    , including parsing, AST, semantic analysis, and code generation.
  • Solid understanding of
    CPU/GPU architectures
    , instruction sets, and low-level code optimization.
  • Familiarity with
    build systems
    (CMake, Ninja) and
    cross-compilation
    .
  • Ability to write efficient, maintainable, and portable code.
  • Strong problem-solving, debugging, and performance analysis skills.
  • Excellent written and verbal communication skills.

Skills and Competencies:

  • Deep understanding of
    compiler theory
    ,
    IR design
    , and
    optimization techniques
    .
  • Ability to work on
    complex, cross-platform software
    in a collaborative environment.
  • Comfortable with
    debugging at assembly and IR level
    .
  • Strong analytical skills and attention to detail.

Preferred Qualifications:

  • Experience with
    sanitizers, static analyzers, or runtime instrumentation
    .
  • Knowledge of
    JIT compilation, LLVM MC layer, or backend target development
    .
  • Familiarity with
    vectorization, SIMD, and parallelization optimizations
    .
  • Contributions to
    LLVM/CLANG open-source projects
    .
  • Experience with
    CI/CD and automated compiler testing frameworks
    .
  • Knowledge of
    profiling tools
    (perf, VTune, gprof, Valgrind).

What You'll Gain:

  • Opportunity to work on
    cutting-edge compiler technology
    .
  • Direct impact on
    performance-critical software stacks
    .
  • Exposure to
    hardware-software co-optimization
    for next-generation architectures.
  • Collaboration with a team of experts in
    compilers, programming languages, and architecture
    .

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