Senior Java Software Engineer (Pricing API) - 5 days - London
Posted Today by Salt
£500 Per day
Inside
Onsite
London, UK
Summary: The Senior Software Engineer role focuses on developing a mission-critical pricing and promotions API for a retail client in London. The position requires extensive experience in Java and involves designing scalable back-end systems while mentoring junior engineers. The role is on-site five days a week and offers a competitive day rate within the IR35 framework. Candidates should be prepared to tackle complex engineering challenges in a high-performance environment.
Key Responsibilities:
- Designing and building scalable Back End systems using Java and the JVM ecosystem
- Developing clean, maintainable code from product requirements
- Applying TDD/BDD practices and modern engineering principles
- Building and maintaining cloud-native infrastructure
- Working on highly available distributed systems
- Troubleshooting production issues and driving root cause analysis
- Mentoring others and contributing to engineering best practices
- Exploring and introducing new tools and technologies
Key Skills:
- Strong experience with Java (8+)
- Hands-on expertise with cloud platforms (Azure, AWS, etc.)
- Experience with SQL and NoSQL databases
- Proven ability to build and scale distributed systems
- Understanding of Agile delivery methods
- Exposure to reactive programming
- Experience in eCommerce or search platforms
Salary (Rate): £500 daily
City: London
Country: UK
Working Arrangements: on-site
IR35 Status: inside IR35
Seniority Level: Senior
Industry: IT
Senior Software Engineer - (Java, Pricing API,) - 5 days - Retail - London
Day rate: £400 - £500 (inside IR35)
Duration: 6 months
On site: 5 days per week
Start: Now
My client is looking for a Senior Java Developer with 8 - 15 years experience to join the team 5 days a week in their London office. This is an opportunity to work on a mission critical pricing and promotions API that supports over 28 million UK customers weekly, across all platforms with global expansion ahead.
This role involves designing and scaling a high-performance, internet-facing API operating across distributed environments. If you enjoy solving complex engineering challenges and building resilient systems at scale, this could be a great fit.
What You'll Be Doing
- Designing and building scalable Back End systems using Java and the JVM ecosystem
- Developing clean, maintainable code from product requirements
- Applying TDD/BDD practices and modern engineering principles
- Building and maintaining cloud-native infrastructure
- Working on highly available distributed systems
- Troubleshooting production issues and driving root cause analysis
- Mentoring others and contributing to engineering best practices
- Exploring and introducing new tools and technologies
Tech Stack
Java | Vert.x | RxJava | Groovy
Couchbase | Kafka
Azure | Kubernetes | Terraform
GitHub Actions | CI/CD pipelines
What We're Looking For
- Strong experience with Java (8+)
- Hands-on expertise with cloud platforms (Azure, AWS, etc.)
- Experience with SQL and NoSQL databases
- Proven ability to build and scale distributed systems
- Understanding of Agile delivery methods
- Exposure to reactive programming
- Experience in eCommerce or search platforms
*Rates depend on experience and client requirements