Fullstack Developer

Fullstack Developer – Contract – Energy Trading / Financial Services – London (Hybrid)

📍 Location: London (Hybrid – 3 days onsite)

💰 Rate: £550-£650/day (Inside IR35)

📅 Contract: 6 months initially

Cititec is working with a leading energy trading firm that’s building a cutting-edge post-trade platform in AWS, and they’re looking for a Fullstack Developer to join their team.

This is a hands-on role where you’ll be part of a fast-paced Agile environment, helping build out a platform that powers live intraday P&L reporting and digitised front-office workflows. You’ll be working alongside a cross-functional team of developers, quants, and traders.

Responsibilities will include:

• Designing and building secure, scalable applications using modern front-end and back-end technologies
• Collaborating with teams to deliver effective solutions that align with business needs and architectural standards
• Improve CI/CD pipelines to support efficient feature delivery
• Produce high-level designs aligned with infrastructure, cloud, and security requirements

Key Requirements:

• Hands-on experience in Python development
• Solid experience with React/TypeScript or Svelte
• Confident building secure, scalable front-end applications
• Comfortable working with APIs such as GraphQL and REST
• Experience with AWS services like S3, ECS, or AppSync
• Familiarity with Kafka, PostgreSQL, and microservices architecture
• Agile mindset and strong team player
• Experience within the commodities trading or financial industry is essential

This is a great opportunity to work on a high-impact, modern system at the heart of a trading business.