Senior Python Engineer - Pre-trade (Gas & Power)

About the role

Talan, an international group supporting clients' Data & AI transformation, is hiring a Senior Software Engineer (AWS / Python) in Houston to support a key client in the energy trading industry. The project is a greenfield data ingestion platform for the energy sector, and you will architect it and write its first line of code. The work powers pre-trade workflows, market data, pricing and analytics, and you will build on AWS with Python, designing for security, reliability and scale. The position is hybrid, with at least 3 days onsite per week.

Key responsibilities

• Design and build cloud-native applications, APIs, microservices and event-driven pipelines on AWS, starting from scratch.
• Write backend services and automation in Python that process large volumes of market and energy data reliably.
• Architect services for market data, pricing, analytics and pre-trade workflows.
• Codify infrastructure with Terraform, AWS CDK or CloudFormation so environments are repeatable and auditable.
• Build CI/CD pipelines, automated testing, monitoring and observability.
• Bake in cloud security and secure development practices from the first commit.
• Tune performance, reliability, scalability and AWS spend under real load.
• Lead architecture reviews and code reviews and set the team's standards.

Required profile

• 10+ years of hands-on backend development with strong object-oriented design, including event-driven and distributed systems.
• 5+ years building complex Python applications handling high-volume data, with APIs, microservices and event-driven architectures.
• 5+ years deploying Python applications on AWS.
• Bachelor's degree in Computer Science, Engineering, Finance or Quantitative Finance.

Required skills

• Python and AWS
• Terraform, AWS CDK or CloudFormation
• Nice to have: Kafka, Redis/ElastiCache, RDS, Aurora, S3; Microsoft Azure; Athena or Redshift; C#/.NET, React or Angular; AWS or Azure certifications

What we offer

• 401(k) retirement plan with company matching
• 15 days of paid vacation at hire, up to 27 by seniority (untaken days are cashed out)
• 8 paid holidays, 5 sick days and 2 personal days per year
• Health, dental and vision insurance, plus voluntary STD and LTD
• Commuter and transit benefits
• Visa sponsorship under specific treaty-based U.S. work visas (TN and E-2); other visa types are not supported