At a Glance
- Tasks: Lead the development of a next-gen cloud-native platform using Kotlin.
- Company: Join a high-performing team in investment banking technology.
- Benefits: Competitive daily rate, hybrid work, and a dynamic environment.
- Other info: Collaborative, fast-paced environment focused on Extreme Programming principles.
- Why this job: Make a global impact by transforming capital markets with cutting-edge tech.
- Qualifications: Senior-level Kotlin expertise and strong communication skills required.
An Interim Senior Software Engineer to join a high-performing front-office engineering team delivering a next-generation cloud-native issuance platform for global capital markets. This platform is replacing a legacy bookbuilding system used by investment banking teams worldwide and supports high-volume, real-time workflows during critical trading windows. The engineering environment is collaborative, fast-paced, and strongly aligned to Extreme Programming (XP) principles.
The lead Software Engineer will have senior-level experience in Kotlin and Event-sourcing, and business communication skills. You will leverage your Kotlin and event sourcing expertise within the team, as well as communicating with business users, without proxy. This is a senior engineering position focused on designing, building, and evolving backend services in Kotlin within a modern cloud-native architecture. You will work closely with engineers, product specialists, and business stakeholders to deliver resilient, scalable solutions that support real-time issuance and allocation workflows.
The role places strong emphasis on:
- Mob programming
- Test‑driven development (TDD)
- Continuous refactoring
- Collective ownership
- Incremental delivery
- Production excellence
Required Skills & Experience:
- Extremely senior-level Kotlin experience
- Event‑sourcing, and business communication skills
- Ability to leverage Kotlin sourcing expertise with the team and communicate well with business users
- Strong commercial experience building backend services using Kotlin
- Deep understanding of event‑driven and/or event‑sourced architectures
- Extensive experience with XP engineering practices
- Strong cloud engineering experience within GCP environments
- Experience working within regulated or enterprise‑scale environments
- Comfortable supporting high‑availability production systems
This is an opportunity to work on a business-critical platform used globally, within a modern Cloud-native engineering environment.
Note: Applicants must hold current and valid UK Right to Work.
Interim Senior Software Lead Kotlin £1200 p/d employer: 1st Executive
1st Executive is an exceptional employer, offering a dynamic work environment in the heart of Greater London, where innovation and collaboration thrive. With competitive daily rates and a strong focus on professional development, employees are encouraged to enhance their skills while managing high-value contracts that make a real impact. The company fosters a culture of inclusivity and support, ensuring that every team member feels valued and empowered to contribute to the success of the infrastructure programme.
