Senior/Principal ML Systems Architect

21 hours ago

Bristol, Bristol, United Kingdom Softinway inc Full time
Overview

We are seeking a highly experienced ML Systems Architect to design and implement a scalable, production-grade architecture for our machine learning solver. This role bridges research prototypes and commercial deployment, ensuring reliability, maintainability, and performance in a mixed technology stack.

Responsibilities
  • Architect the ML Solver Platform:
  • Define modular architecture for data preprocessing, model execution, and post-processing.
  • Establish clear API contracts between Python/TensorFlow and C# services.
  • Productionize ML Workflows:
  • Convert research code into robust, testable, and observable services.
  • Implement CI/CD pipelines, automated testing, and reproducibility standards.
  • Integration & Interoperability:
  • Design REST/gRPC endpoints for cross-language communication.
  • Ensure compatibility with C#/.NET services.
  • Performance & Scalability:
  • Optimize GPU/CPU utilization, batching strategies, and memory management.
  • Plan for multi-model and multi-tenant scenarios.
  • MLOps & Lifecycle Management:
  • Implement model versioning, artifact registries, and deployment workflows.
  • Set up monitoring, logging, and alerting for solver performance.
  • Security & Compliance:
  • Apply best practices for secrets management, dependency scanning, and secure artifact storage.
Required Skills & Experience
  • ML Frameworks: Expert in TensorFlow (TF2/Keras), experience with ONNX Runtime for inference.
  • Programming: Advanced Python for ML; strong understanding of packaging, type checking, and performance profiling.
  • Architecture: Proven experience designing scalable ML systems for production.
  • APIs: Proficiency in gRPC/Protobuf and REST for cross-language integration.
  • MLOps: CI/CD pipelines, containerization (Docker/Kubernetes), model registries, reproducibility.
  • Performance Optimization: GPU acceleration (CUDA/cuDNN), mixed precision, XLA, profiling.
  • Observability: Metrics, tracing, structured logging, dashboards.
  • Security: SBOM, image signing, role-based access, vulnerability scanning.
Preferred Qualifications
  • Experience with ONNX Runtime Training, PyTorch, or hybrid ML architectures.
  • Familiarity with distributed training strategies and multi-GPU setups.
  • Knowledge of feature stores and data validation frameworks.
  • Exposure to regulated environments and compliance frameworks.
Tools & Technologies
  • ML: TensorFlow, ONNX Runtime, tf2onnx.
  • APIs: FastAPI, gRPC.
  • DevOps: GitLab CI/GitHub Actions, Docker, Kubernetes.
  • Monitoring: Prometheus, Grafana, OpenTelemetry.
  • Security: HashiCorp Vault, Sigstore.
Why Join Us?
  • Work on cutting-edge ML solutions integrated into commercial engineering software.
  • Define architecture that scales across global deployments.
  • Collaborate with a team of experts in ML, software engineering, and UI development.

To apply: Send your resume and a brief cover letter to

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