Senior Developer - Software

Posted:
5/19/2026, 5:00:00 PM

Location(s):
Buenos Aires, Argentina

Experience Level(s):
Senior

Field(s):
Software Engineering

How will you CONTRIBUTE and GROW?

You will guide and support the full software development lifecycle—from understanding and shaping customer and user requirements and systems analysis to design, build, test, and implementation—for new and existing mission-critical web and mobile applications.

KEY RESPONSIBILITIES

  • Develop, maintain, and support robust web and mobile applications.

  • Design, write, and execute comprehensive test cases, and accurately document test results.

  • Assist in technical design and functional specifications for business applications, analyzing options, alternatives, and evaluating system functionality and integrity.

  • Support the day-to-day maintenance and systems administration of internal websites, including updating document content and performing necessary software development.

  • Create, maintain, and manage web pages across both Intranet and Internet sites.

  • Utilize structured methodologies and various processes to determine requirements and design formal solutions.

  • Prepare or assist in developing project plans, defining project scope, estimating resource projections, and preparing work plans.

  • Provide regular status reports and participate in team meetings.

  • Recommend and implement appropriate modifications and improvements to existing applications.

  • Conduct presentations or provide training on new or updated systems.

  • Research and track emerging technical trends and products in software development.

Knowledge, Skills & Abilities

  • Proven ability to work autonomously and contribute effectively in a dynamic environment to meet milestones.

  • Excellent problem-solving skills.

  • Demonstrated ability to interact effectively with all levels of management.

  • Strong collaboration and teamwork skills.

  • Exceptional written and verbal communication skills.

  • Ability to translate complex business requirements and design concepts into intuitive web designs and applications.

  • Ability to clearly explain and discuss complex analysis and programming issues with non-technical stakeholders.

  • Excellent analytical skills for defining and structuring complex programs.

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Are you a MATCH?

Welcomed Qualifications And Competencies

Education

  • Bachelor's Degree in Computer/Information Science or a related field, or equivalent practical experience.

Experience

  • Deep professional web development experience, typically gained over 6+ years using .NET technologies, including ASP.NET MVC, Web Forms, .NET Core, and ASP.NET Core.

  • Strong hands-on experience, ideally around 3+ years with Angular development.

  • Experience with React / React Native is preferred.

  • Excellent SQL programming skills, including experience with stored procedure development.

  • Experience with CI/CD pipelines, DevOps practices, and tools like Docker, Kubernetes, and Azure DevOps is preferred.

  • Hands-on experience with unit testing, dependency injection, and developing maintainable, testable code.

  • Mobile development experience is preferred.

Core Technical Understanding:

  • Thorough understanding of web development, from foundational HTML to advanced technologies.

  • Thorough understanding of Relational Database Design and integration.

  • Proficiency in Structured Methodology and the Software Development Lifecycle (SDLC).

  • Solid grasp of Object-Oriented Development principles.

  • Proficiency in Source Code Control ("version control").

  • Understanding of browser compatibility issues and web page design principles.

  • Familiarity with web server technology, security, and web statistics software.

Our Differences make our Performance


At Air Liquide, we are committed to build a diverse and inclusive workplace that embraces the diversity of our employees, our customers, patients, community stakeholders and cultures across the world.

We welcome and consider applications from all qualified applicants, regardless of their background. We strongly believe a diverse organization opens up opportunities for people to express their talent, both individually and collectively and it helps foster our ability to innovate by living our fundamentals, acting for our success and creating an engaging environment in a changing world.

Air Liquide

Website: https://www.airliquide.com/

Headquarter Location: Paris, Ile-de-France, France

Employee Count: 10001+

Year Founded: 1902

IPO Status: Public

Last Funding Type: Post-IPO Debt

Industries: Chemical ⋅ Construction ⋅ Health Care ⋅ Industrial ⋅ Industrial Manufacturing ⋅ Machinery Manufacturing ⋅ Manufacturing ⋅ Public Safety ⋅ Telecommunications