Software Developer, Subsurface Applications (Associate - Senior) Landmark

Halliburton Energy Services; Calgary; On-site; CAD 80,000 - 120,000; Full time

Job summary

Landmark, a Halliburton business line, is seeking a Software Developer for Subsurface Applications in Calgary. You will design, build, and maintain Core Java desktop software for subsurface workflows, translating product requirements into reliable Java solutions.

The role emphasizes secure coding, testing, and collaboration with product teams. The position targets an Associate to Senior level, offering growth in a technically diverse environment with geoscience and engineering applications.

Qualifications

• Undergraduate degree in Computer Science or a related discipline.
• 0–2 years of software development experience, or 3 years with strong fundamentals.
• Ability to design, code, test, troubleshoot, and document software components.
• Willingness to follow secure coding principles and practices.

Responsibilities

• Develop and enhance Core Java desktop capabilities for Jupiter Subsurface workflows.
• Translate requirements and architecture into maintainable Java implementations.
• Design, code, test, debug, and document desktop application components.
• Investigate defects and implement targeted fixes.
• Create and maintain unit and integration tests.

Skills

Core Java

Desktop applications

Design & coding

Testing

Documentation

Secure coding

Code reviews

Problem solving

Education

Undergraduate degree in Computer Science or related field

Tools

Jupiter Subsurface (software)

Job description

Select how often (in days) to receive an alert:

Software Developer, Subsurface Applications (Associate - Senior) Landmark

Date: Sep 30, 2026

Location: Calgary, AB, CA, T2P 3V4

We are looking for the right people — people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the world’s largest providers of products and services to the global energy industry.

About Landmark

Landmark, a Halliburton business line, provides the industry’s most comprehensive suite of digital solutions for exploration, drilling, and production optimization. Its software and data platforms empower customers to model subsurface assets, manage drilling risk, and accelerate decision‑making through cloud, AI, and advanced analytics.

About the Role

The Core Java Software Developer will design, develop, test, and maintain desktop software used in subsurface and geoscience engineering workflows. Working on Jupiter Subsurface applications, the developer will translate product requirements and architectural direction into secure, reliable, and maintainable Java application capabilities.

This role is suited to a software developer who combines Core Java or desktop application development experience with an interest in scientific and engineering software. Depending on experience and level, the developer may contribute to application design, implementation, automated testing, troubleshooting, code quality, and the continued development of complex technical applications.

Key Responsibilities

• Develop and enhance Core Java desktop application capabilities for Jupiter Subsurface engineering and geoscience workflows.
• Translate product requirements and software architecture into maintainable, testable, and secure Java implementations.
• Design, code, test, debug, and document desktop application components within an established software architecture.
• Investigate software defects, identify root causes, and implement appropriately scoped corrections.
• Apply object‑oriented design principles and structured problem‑solving techniques to scientific and engineering software challenges.
• Create and maintain unit, integration, automated regression, or other appropriate software tests.
• Follow secure coding standards and participate in the identification, triage, and remediation of application‑security findings.
• Participate in code reviews and incorporate technical feedback to improve software quality, maintainability, and development practices.
• Collaborate with Product Management, Software Architects, developers, and quality stakeholders to clarify requirements and acceptance criteria.
• Maintain technical documentation covering assigned components, implementation decisions, testing, and issue resolution.
• Build knowledge of subsurface workflows, geoscience applications, and the technical needs of engineering‑software users.

Qualifications

Required

• Undergraduate degree in Computer Science or a similar discipline and 0 to 2 years of related software development experience, or 3 years of related software development experience.
• Foundational knowledge of software development concepts, programming practices, data structures, and application design.
• Ability to design, code, test, troubleshoot, and document appropriately scoped software components.
• Ability to analyze software defects and apply structured problem‑solving techniques with guidance when needed.
• Understanding of secure coding principles and willingness to follow established application‑security practices.
• Ability to collaborate with technical team members, receive development guidance, and communicate progress or technical issues clearly.

Preferred

• The following qualifications are preferred and are not additional minimum requirements:
• Experience gained through internships, academic projects, research, open‑source contributions, or professional software development.
• Exposure to automated testing, regression testing, source control, code review, or continuous integration practices.
• Familiarity with software used for engineering, scientific, geoscience, data‑intensive, or technical workflows.
• Exposure to Agile or iterative software development practices.
• Interest in learning subsurface technology, energy workflows, and scientific software development.

Candidates who possess qualifications exceeding the minimum job requirements may be considered for higher‑level positions based on experience, additional qualifications, demonstrated capabilities, and current business needs. Depending on education, experience, and skill level, candidates may be eligible for roles ranging from Associate Software Developer, Subsurface Applications to Software Developer, Subsurface Applications or Senior Software Developer, Subsurface Applications.

Core Competencies

Software Development | Application Development | Object‑Oriented Programming | Secure Coding | Unit Testing | Automated Testing | Regression Testing | Software Troubleshooting | Debugging | Code Review | Source Control | Software Documentation | Application Security | Engineering Software | Scientific Software | Subsurface Applications

Halliburton is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex/gender, sexual preference/ orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation

Location

Requisition Number:212008
Experience Level:Experienced Hire
Job Family:Engineering/Science/Technology
Product Service Line:Landmark Software & Services
Full Time / Part Time:Full Time

Additional Locations for this position:

Compensation Information
Compensation is competitive and commensurate with experience.