LEX / YACC Compiler Design Developer

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Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management.

As a bank with a brain and a soul, Citi creates economic value that is systemically responsible and in our clients’ best interests. As a financial institution that touches every region of the world and every sector that shapes your daily life, our Enterprise Operations & Technology teams are charged with a mission that rivals any large tech company. Our technology solutions are the foundations of everything we do from keeping the bank safe, managing global resources, and providing the technical tools our workers need to be successful to designing our digital architecture and ensuring our platforms provide a first-class customer experience. We reimagine client and partner experiences to deliver excellence through secure, reliable, and efficient services.

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This role is a Lex / Yacc Compiler Design Developer and is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities.

Responsibilities:

- Develop and maintain compiler front-end and back-end components
- Optimize compiler performance for different hardware architectures
- Debug and resolve compiler-related issues
- Collaborate on designing and implementing new language features
- Conduct code reviews for quality assurance
- Write and maintain documentation for compiler functionalities and APIs
- Integrate and validate third-party libraries and tools
- Manage source code using version control systems
- Implement algorithms for code generation and optimization
- Perform code refactoring for better maintainability and efficiency
- Stay updated with advancements in compiler technology
- Profile and benchmark compiler performance on various platforms
- Develop automated tests for compiler verification
- Provide technical support to teams using the compiler
- Analyze performance metrics to identify areas for improvement
- Participate in design and architecture discussions
- Use static and dynamic analysis tools to improve code quality
- Collaborate with cross-functional teams
- Research new compiler techniques and methodologies
- Contribute to and engage with open-source compiler projects

Qualifications:

• 3+ years experience of compiler development experience.

• 3+ years hands on experience of Lex and yacc tool using the UNIX OS and GNU tool

• 3+ years experience with LLVM, MLIR. LLM, Vision or other deep-learning models

• Vision or other deep-learning models
  good knowledge of Data Lineage and relational database

Education:

• Bachelor’s degree/University degree in Computer Engineering, Information Technology, Computer Science or equivalent experience

• Masters Degree in Engineering highly desirable

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

Preferred Critical Skills:

• 4+  years experience and strong understanding of embedded software development in a hardware environment.

• 3+ years experience with llvm, gcc, gdb, multicore systems, cross-compilation environments, embedded OS, and drivers.

• 3+ yeas Full Software Development Kit (SDK) development cycle experience.

• 3+ years hands on professional software development experience

• 3+ years of experience developing compiler optimization, graph-theory, hardware bring-up, FPGA placement and routing algorithms, or hardware resource management.

• 3+ years experience is TensorFlow, PyTorch, and/or JAX

• 3+ years experience with with developing algorithms for simulation tools

• Strong knowledge in one or more of the areas of: lexical analysis, parsing, semantic analysis, code generation, and optimization, which helps them write code that is easily interpreted by the compiler and produces efficient machine code.

• Pragmatic problem-solving and ability to work independently or as part of a team.

• Proficiency in C/C++ or Rust programming languages, with a deep understanding of memory management and low-level system programming. 

• Proficiency with 1 or more of the following programming languages: C++ (preferred), Python

• Experience in the LLVM compiler infrastructure to customize and optimize compilers for a specific OS.

• A passion for development, strong work ethic, and continuous learning.

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Citi is an equal opportunity and affirmative action employer.

Qualified applicants will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

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