💼 About the Role

STX is building a next-generation in-house Energy Trading & Risk Management (ETRM) capability, and we’re looking for experienced Openlink / Endur Engineers to be part of this strategic transformation. You'll work hands-on with our global trading, risk, and operations teams to evolve and enhance our Openlink platform—focusing on scalable architecture, clean integrations, and domain-driven design that meets the realities of physical and financial commodity trading.

This is not a support role. It’s a builder’s role—a chance to design, optimize, and extend the Openlink landscape to meet high-performance front office and risk requirements.

🛠️ What You'll Do

• Lead or contribute to the design, development, and integration of Openlink Endur components across the trade lifecycle.

• Extend JVS and Connex frameworks to support evolving business needs in power, gas, and environmental products.

• Collaborate directly with traders, risk analysts, and middle/back office teams to translate requirements into clean, scalable solutions.

• Build APIs and services for trade modeling, pricing, valuation, and reporting workflows.

• Integrate Openlink with broader ETRM and data infrastructure, including cloud-native tools and messaging platforms.

• Participate in design discussions on custom extensions, curve modeling, deal capture workflows, and transport/storage modeling.

• Drive operational excellence through automation, testing, and monitoring.

• Support migration, upgrade, or replatforming initiatives as part of our long-term architectural vision.

🎯 What You’ll Bring

• 5–10+ years of professional experience in software engineering, with deep experience in Openlink Endur (JVS, Connex, AVS).

• Solid SQL skills and experience with performance tuning in a trading context (MS SQL or equivalent).

• Hands-on experience with commodity trading, especially gas, power, emissions, and structured products.

• Strong coding skills in Java, with familiarity in modern backend tools (Spring Boot, REST/JSON, Docker, GitLab CI/CD).

• Understanding of deal lifecycle, settlements, risk metrics, valuation, and pricing models.

• Experience in integrating ETRM systems with external platforms via APIs, messaging, or flat files.

• Familiarity with DevOps and cloud environments (Azure or AWS).

• Proven ability to collaborate with business users, understand requirements, and deliver stable, scalable solutions.

⚙️ Bonus Points For

• Exposure to non-linear financial derivatives or physical logistics modeling (storage, transport).

• Familiarity with volatility and curve modeling in Openlink.

• Experience working in high-volume or regulated energy markets (Europe, North America).

• Prior roles in an energy firm or consultancy with Openlink/ETRM implementation experience.

🌍 Why STX?

• Build, don’t just configure – We own our tech stack and have the mandate to modernize it

• Strategic tech investment – We're not patching legacy, we’re building the future

• Close to the business – Direct access to traders, risk, and ops—no middle layers

• Real ownership – Your work has immediate impact and long-term strategic value

• Supportive culture – Low ego, high autonomy, and a strong focus on technical quality