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# Senior Software Engineer

- **Company:** Nexgen Cloud
- **Location:** London, UK (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Software Quality, Code Review, Continuous Integration, Data Systems, Software Debugging, Programming Tools, Distributed Systems, Python (Programming Language), NoSQL, Open Source Technology, Software Architecture, Next.js, SQL Databases, Web Application Frameworks, System Availability, Flask (Web Framework), Large Language Models, Backend, Git, Build Management, Api Design, Automation Anywhere, Docker
- **Published:** June 3, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/38252881/

## About the Role

Strong experience designing and operating production backend systems and APIs
Strong proficiency in Python and backend frameworks such as Flask
Experience building full-stack applications using modern frameworks such as Next.js
Experience designing scalable distributed systems and platform architectures
Solid understanding of API design, service boundaries, and data systems (SQL and NoSQL)
Experience with Git, CI/CD pipelines, Docker and Kubernetes
Proven experience managing production systems including monitoring, debugging and incident response

Soft Skills

Strong system design and architectural thinking
Ability to translate complex technical requirements into practical solutions
Strong ownership mindset with accountability for production systems
Collaborative approach to working with cross-functional teams

Nice to Have

Experience working with LLMs, generative AI platforms or model orchestration systems
Exposure to model training, fine-tuning, inference or evaluation pipelines
Experience with GPU-intensive workloads or distributed computing systems
Experience building developer platforms, experimentation tooling or internal developer tools
Contributions to open-source projects or AI / ML tooling

## Description

We are seeking a Senior Software Engineer to join the team building AI Studio, Hyperstack's rapidly growing platform for developing and deploying generative AI workloads.
AI Studio enables customers to fine-tune models, evaluate performance and deploy production inference without needing to manage underlying infrastructure.
In this role you will design and build the core systems powering the platform, including backend services, APIs and user-facing features that orchestrate model training, evaluation, and deployment at scale.
You will take ownership of complex product areas, contribute to architectural decisions and help ensure the platform remains scalable, reliable and performant as adoption continues to grow.
Key Responsibilities
System Ownership & Architecture
Design, build and evolve core backend services and platform components, making architectural decisions that support scalability, reliability and long-term maintainability.
End-to-End Feature Development
Develop and maintain both backend services and user-facing interfaces that support AI workflows including model training, evaluation and deployment.
Code Quality & Engineering Standards
Write clean, maintainable and well-tested code while contributing to code reviews and helping raise engineering standards across the team.
Technical Collaboration
Work closely with Product, Design and Engineering teams to translate complex requirements into production-ready systems and features.
Platform Reliability & Performance
Improve system observability, diagnose production issues and optimise performance to ensure the platform operates reliably at scale.
Documentation & Knowledge Sharing
Produce and maintain clear technical documentation for systems, APIs and platform features.
Technical Leadership
Support and mentor other engineers through collaboration, design discussions and code reviews.
Continuous Improvement
Identify opportunities to improve architecture, tooling and development processes that enhance platform quality and developer productivity.


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