Senior Software Engineer - Landmark

Halliburton•Calgary, AB

1d•Onsite

About The Position

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 LandmarkLandmark, a Halliburton company, builds the software and data platforms that help the global energy industry make better decisions. Our products span subsurface interpretation, well construction planning, reservoir simulation, production optimization, and digital operations. These are tools used daily by engineers and scientists at the world’s largest energy companies and run as cloud-native SaaS platforms and as enterprise on-premises solutions.About the RoleYou are a technical authority who shapes what gets built and how. At Landmark, that means owning the technical direction for products that oil and gas operators use for high-stakes engineering decisions. You work under broad direction, make architecture decisions that hold up over time, and raise the quality and capability of the teams around you. You work closely with Product Management and architects on new application design and major enhancements, and you serve as the first technical escalation point when something hard needs to be sorted out in your area. The decisions you make end up in production code that matters.Strong software engineering fundamentals and the technical depth to independently own complex areas of a product are the primary requirements. Domain knowledge is valuable but not required at hire.Positions are available across a range of teams. Team assignment determines both the product domain you work in and the major technologies you use.Teams build software for domains such as:Geoscience — geology, geophysics, or petrophysicsDrilling engineering and well planningReservoir engineering and modelingProduction engineering and optimizationE&P data management and integrationCloud and platform infrastructure, data services, and developer toolingAI-assisted analytics, search, and generative AITechnologies used vary by team and include:Languages such as Java, C#, F#, C++, Python, TypeScript, and FortranFrameworks, platforms, and runtimes such as .NET, Angular, React, and Node.jsCloud platforms including Azure and AWSContainerization and orchestration tooling such as Docker and KubernetesInfrastructure automation tools such as Terraform, Ansible, Helm, and Argo CD/FluxRelational and NoSQL databases such as PostgreSQL, SQL Server, Oracle, and MongoDB

Requirements

Bachelor’s degree in Computer Science, Software Engineering, or a related discipline, or equivalent experience
10 or more years of software development experience
Deep proficiency in at least one of: Java, C#/F# (.NET), C++, Python, or TypeScript (React/Angular/Node.js), and a history of delivering production software in that stack
Experience designing and owning the architecture of a complex software system or major subsystem, with technical decisions that held up across multiple releases
A track record of providing technical leadership across a team or product area
Communication skills sharp enough to explain a technical trade-off to a product manager and a design choice to a junior engineer with equal clarity

Nice To Haves

Experience with cloud-native development, full-stack or web application development, or data platform technologies
Experience with CI/CD pipelines, containerization, and infrastructure automation
Background in technically complex or scientifically demanding application domains (distributed systems, scientific computing, real-time systems, large-scale data)
Experience integrating machine learning, generative AI, or LLM-based components into production systems
Experience contributing to open-source projects, or integrating open-source components at scale
Energy industry experience is not required but is a strong plus.

Responsibilities

Shape the technical direction of the products and platforms you own across near-term and long-term planning horizons
Scope major technical work: estimate effort, identify risks, and define the delivery approach
Design and build new applications and major enhancements in partnership with Product Management and architects
Serve as the technical authority for your area of the application or architecture: the person the team turns to when a decision is hard or a problem is deep
Evaluate architecture and implementation for performance, scalability, and security weaknesses, and drive improvements through to resolution
Lead design and code reviews with a focus on long-term quality, not just correctness
Challenge the delivery process when it produces slow feedback, unnecessary risk, or poor outcomes
Mentor engineers at junior and mid levels through code reviews, technical guidance, and the standard you set in your own work
Stay current on tools, practices, and technologies relevant to your area, and drive adoption where they improve the product
Own security for your area: set coding standards, catch vulnerabilities in design and code reviews, and drive fixes to completion