Cython Engineer

We are seeking a highly skilled Cython Developer with expertise in performance optimization and low-level programming to join our dynamic team. The ideal candidate will have strong proficiency in Python and C with experience in optimizing performance-critical applications and building high-performance data processing systems.

Key Responsibilities:

• Design develop and optimize performance-critical Python applications using Cython for significant speed improvements.
• Profile Python code to identify bottlenecks and refactor with Cython to enhance execution speed and memory efficiency.
• Write and compile Cython code integrating C/C libraries with Python applications for optimal performance.
• Develop high-performance data structures and algorithms using SIMD and multi-core optimizations.
• Collaborate with data scientists and engineers to optimize scientific computing libraries like NumPy SciPy and pandas.
• Write and maintain unit tests and integration tests to ensure code quality and reliability.
• Manage memory manually and implement low-level programming techniques for resource-intensive applications.2
• Create and maintain technical documentation for optimized codebases and performance benchmarks.
• Work with cross-functional teams to understand performance requirements and deliver scalable solutions.
• Participate in code reviews and contribute to best practices for performance engineering.

Required Skills & Experience:

• 68 years of hands-on experience in Python development with focus on performance optimization.34
• Strong proficiency in Python and C/C programming languages.
• Deep expertise in Cython syntax extensions and performance optimization techniques.
• Experience with profiling tools and performance analysis to identify and resolve bottlenecks.
• Solid understanding of low-level programming concepts including memory management and pointer operations.
• Familiarity with compiler tools such as gcc and clang for building optimized binaries.
• Strong experience with NumPy SciPy pandas or other scientific computing libraries.
• Knowledge of data structures algorithms and system design principles.
• Experience with Git and version control practices.
• Understanding of parallel programming multi-threading and asynchronous processing.
• Ability to work independently and manage multiple priorities in a fast-paced environment.

Preferred Qualifications:

• Experience with JIT compilation techniques such as Numba or PyPy.
• Knowledge of SIMD instructions and vectorization for performance gains.
• Familiarity with data analytics frameworks and caching optimization.
• Experience working with high-stakes large-scale production infrastructure.
• Knowledge of RESTful services and backend development using Python frameworks.
• Bachelors or masters degree in computer science Software Engineering or related field.

PrismHR is a fast-paced SaaS company which provides customers with a cloud-based payroll process software application. PrismHR also provides professional services including system implementation consulting custom configurations and training. Lastly via the Companys Marketplace platform customers and end users access other human resources and employee benefits applications from PrismHRs Marketplace Partners.

Diversity Equity and Inclusion Program/Affirmative Action Plan:
We have transformed our company into an inclusive environment where individuals are valued for their talents and empowered to reach their fullest potential. At PrismHR we strive to continually lead with our values and beliefs that enable our employees to develop their potential bring their full self to work and engage in a world of inclusion.

Ensuring an inclusive environment for our employees is an integral part of the PrismHR culture. We arent just checking a box we are truly committed to creating a workplace that celebrates the diversity of our employees and fosters a sense of belonging for everyone. This is essential to our success. We are dedicated to building a diverse inclusive and authentic workplace so if youre excited about our roles but your past experience doesnt align perfectly with every qualification in the job description we encourage you to apply anyway. You may be just the right candidate for these open roles or other open roles. We particularly encourage applicants from traditionally under-represented groups as we seek to increase the diversity of our workforce and provide fair opportunities for all.

As a proud Equal Opportunity and Affirmative Action Employer PrismHR encourages talent from all backgrounds to join our team. Employment decisions are based on an individuals qualifications as they relate to the job under consideration. The Companys policy prohibits unlawful discrimination based on sex (which includes pregnancy childbirth breastfeeding or related medical conditions the actual sex of the individual or the gender identity or gender expression) race color religion including religious dress practices and religious grooming practices sexual orientation national origin ancestry citizenship marital status familial status age physical disability mental disability medical condition genetic information protected veteran or military status or any other consideration made unlawful by federal state or local laws ordinances or regulations.

The Company is committed to complying with all applicable laws providing equal employment opportunities. This commitment applies to all persons involved in the operations of the Company and prohibits unlawful discrimination by any employee of the Company including supervisors and co-workers.

Privacy Policy: For information about how we collect and use your personal information please see our privacy statement available at provides reasonable accommodation for qualified individuals with disabilities and disabled veterans in job application procedures. If you have any difficulty using our online system and you need a reasonable accommodation due to a disability you may use the following alternative email address to contact us about your interest in employment at PrismHR: Please indicate in the subject line of your email that you are requesting accommodation. Only candidates being considered for a position who require an accommodation will receive a follow-up response.

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