
Software Engineer III (Python & C#)
Excited to architect, build, and elevate complex systems?
Do you thrive in solving challenging problems with Python and C#, while driving engineering excellence across teams?
About the team:
LexisNexis Intellectual Property, with 11,300 employees worldwide and serving customers in more than 150 countries, is part of RELX, a global provider of information-based analytics and decision tools for professional and business customers.
About the role:
This position performs moderately difficult research, design, and software development assignments within the LNIP intelligence core platform. Software Engineer III works independently on individual pieces of work and solves moderately complex technical problems, including designing program flow, implementing effective code, performing unit testing, resolving defects, and contributing to system component design and specifications.
Key Responsibilities:
Create specifications for and develop and maintain a semantic search API.
Successfully implement development processes, coding best practices, secure coding standards, unit testing, code coverage expectations, and code reviews.
Maintain an internal data curation tool.
Use agentic development tools responsibly to accelerate development while maintaining code quality, security, correctness, and maintainability.
Requirements:
Proficiency in development languages, including but not limited to: Python, C#, .NET, JavaScript, TypeScript, React, and Angular.
Proficiency in at least one agentic development tool, including but not limited to: GitHub Copilot, OpenAI Codex, Claude Code, Cursor, or Coder.
Familiarity with industry best practices, including agentic code development, secure coding practices, security scans, versioning, unit testing, test-driven development, measuring code coverage, code reviews, and cloud deployment.
Proficiency with data manipulation languages, understanding of data modelling principles, and ability to work with complex data models.
Knowledge of software development methodologies, including Agile and Waterfall.
Knowledge of data query and manipulation languages, including SQL and PySpark.
Knowledge of data storage subsystems.
Knowledge of vector embeddings of text and their application in intelligent software systems.
Why Join Us?
Join our team and contribute to a culture of innovation, collaboration, and excellence. If you are ready to advance your career and make a significant impact, we encourage you to apply.
Work in a way that works for you
We promote a healthy work/life balance across the organisation. We offer an appealing working prospect for our people. With numerous wellbeing initiatives, shared parental leave, study assistance and sabbaticals, we will help you meet your immediate responsibilities and your long-term goals.
Working flexible hours - flexing the times when you work in the day to help you fit everything in and work when you are the most productive.
Working for you
We know that your well-being and happiness are key to a long and successful career. These are some of the benefits we are delighted to offer:
Generous holiday allowance with the option to buy additional days.
Health screening, eye care vouchers, and private medical benefits
Wellbeing programs
Life assurance
Access to a competitive contributory pension scheme
Save As You Earn share option scheme.
Travel Season ticket loan.
Electric Vehicle Scheme
Optional Dental Insurance
Maternity, paternity, and shared parental leave
Employee Assistance Programme
Access to emergency care for both the elderly and children
RECARES days, giving you time to support the charities and causes that matter to you.
Access to employee resource groups with dedicated time to volunteer.
Access to extensive learning and development resources
Access to the employee discounts scheme via Perks at Work
About the business -
At LexisNexis Intellectual Property (LNIP), we believe that whenever a person works on a patent and understands the future trajectory of a specific technology, that person has the potential to fundamentally change how society operates. We are proud to directly support and serve these innovators in their endeavours to better humankind. We enable innovators to accomplish more by helping them make informed decisions, be more productive, comply with regulations, and ultimately achieve superior results. By harnessing the latest advances in machine learning combined with expert analysis, LexisNexis Intellectual Property is disrupting how actionable insight is extracted from patent data. Information can now be accessed with efficiency, accuracy and at a speed that is just not possible by traditional methods. Our overall success is measured by how well we deliver these results.
We know your well-being and happiness are key to a long and successful career. We are delighted to offer country specific benefits. Click here to access benefits specific to your location.
We are committed to providing a fair and accessible hiring process. If you have a disability or other need that requires accommodation or adjustment, please let us know by completing our Applicant Request Support Form or please contact 1-855-833-5120.
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We are an equal opportunity employer: qualified applicants are considered for and treated during employment without regard to race, color, creed, religion, sex, national origin, citizenship status, disability status, protected veteran status, age, marital status, sexual orientation, gender identity, genetic information, or any other characteristic protected by law.
USA Job Seekers:

RELX is a global provider of information-based analytics and decision tools for professional and business customers, enabling them to make better decisions, get better results and be more productive.
Our purpose is to benefit society by developing products that help researchers advance scientific knowledge; doctors and nurses improve the lives of patients; lawyers promote the rule of law and achieve justice and fair results for their clients; businesses and governments prevent fraud; consumers access financial services and get fair prices on insurance; and customers learn about markets and complete transactions.
Our purpose guides our actions beyond the products that we develop. It defines us as a company. Every day across RELX our employees are inspired to undertake initiatives that make unique contributions to society and the communities in which we operate.
RELX serves customers in more than 180 countries and has offices in about 40 countries. It employs more than 36,000 people over 40% of whom are in North America.
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