Software Engineer - Full Stack

Flint Hills Resources; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Koch Ag & Energy Solutions in London, UK is seeking a Full-Stack Software Engineer to design and deliver scalable solutions for middle-office capabilities, trading operations, data integrity, and operational controls.

You will help shape the architecture and drive improvements in data quality, platform reliability, and system scalability within a cloud-native environment.

Qualifications

• 5+ years of production software delivery across backend and frontend.
• Backend services using Node.js, Python, or C#/.NET.
• Frontend UI with React or Angular.
• Experience with SQL databases, RESTful APIs, and data models.
• Experience with source control, CI/CD, automated testing, and Agile.

Responsibilities

• Design, build, and maintain full-stack applications for middle-office and trading processes.
• Collaborate with stakeholders to translate requirements into scalable solutions.
• Develop cloud-native apps using AWS and modern architectures.
• Contribute to system design, APIs, and data models across the landscape.
• Deliver reliable software via CI/CD, testing, standards, and collaboration.
• Support and modernize existing platforms for reliable operation.

Skills

Node.js

Python

C#/.NET

React

SQL

REST APIs

CI/CD

Agile

Cloud

AWS

Tools

AWS

Job description

Koch Ag & Energy Solutions is seeking a Full-Stack Software Engineer to design and deliver scalable technology solutions that support critical middle-office capabilities, including applications for trading operations, data integrity, and operational controls.

You will influence the architecture and evolution of systems that support trading operations while delivering practical improvements to data quality, operational control, and platform reliability. The role offers broad exposure to technical and business challenges and the opportunity to shape long-term platform direction through meaningful, measurable contributions.

Our Team

This individual will partner with business stakeholders, build modern, cloud-native applications, and apply software engineering fundamentals and product thinking to translate complex requirements into reliable, maintainable solutions that create measurable business value.

This role is based in our London, UK office.

What You Will Do

• Design, build, and maintain full-stack applications that support middle-office functions and trading business processes.
• Partner with business stakeholders and analysts to translate requirements into scalable technical solutions.
• Develop cloud-native applications and services using Amazon Web Services (AWS) and modern architecture patterns.
• Contribute to system design, data models, application programming interfaces (APIs), and integration patterns across the application landscape.
• Deliver reliable, maintainable software through automated testing, continuous integration and continuous delivery (CI/CD), shared engineering standards, and cross-functional collaboration.
• Support and enhance existing platforms while driving modernization, simplification, and reliable system operation.

Who You Are (Basic Qualifications)

• 5+ years of experience delivering production software applications across backend and frontend technologies.
• Experience developing backend services using at least one modern language or framework such as Node.js, Python, or C#/.NET.
• Experience building user interfaces using a modern frontend framework such as React or Angular.
• Experience working with relational databases, SQL, RESTful APIs, and complex data models.
• Experience using source control, CI/CD pipelines, automated testing, and Agile development practices.
• Experience building and deploying applications in a public cloud environment.
• Experience using modern development tools to improve code quality, testing, documentation, or delivery efficiency.

What Will Put You Ahead

• Experience building and deploying applications in AWS.
• Experience leveraging AI-assisted development tools to improve productivity, code quality, or software delivery outcomes while adhering to security and data-handling requirements.
• Experience evaluating and adopting emerging technologies to solve business problems and improve operational outcomes.
• Ability to connect engineering decisions to operational needs and measurable business value.
• Demonstrated ownership of outcomes, including identifying risks early and driving work through delivery and support.
• Experience working effectively in ambiguous environments and making pragmatic technical trade-offs.
• Experience designing simple, maintainable, and scalable solutions.
• Ability to communicate and collaborate effectively across technical and business teams.
• Continuous learner who applies new technologies and development practices in a practical, value-driven manner.

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

Who We Are

As a Koch company, Koch Ag & Energy Solutions (KAES) is a global provider of value-added solutions for the agriculture, turf and ornamental, energy and chemical markets. From agriculture to energy, KAES makes things grow better with plant nutrient and biological technologies. Our team of innovators unleash their potential while developing the technologies that feed and power the world.

At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.

Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.