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SR2 | Socially Responsible Recruitment | Certified B Corporation™ Tech Stack

AI and autonomous systems recruitment for climate tech and public sector

IT Services and IT Consulting Bristol, Avon, 51–200 employees Founded 2017 Privately Held

SR2 is a B Corp recruitment firm placing engineering talent into climate, clean energy, and public sector roles. The tech stack—PyTorch, TensorFlow, JAX, Kubernetes, React, C++, ROS, Ardupilot—reveals internal AI/ML and robotics engineering, not recruitment ops. Active projects (LLM orchestration, generative AI, foundation models for biological data, autonomous aircraft platforms) and 59 open engineering roles signal SR2 is scaling as a technology company in parallel to its staffing business, with a noted frontend leadership gap and pressure to integrate emerging tech across product.

Tech Stack 200 technologies

Core StackPyTorch TensorFlow scikit-learn MLflow Kubeflow Docker Kubernetes Python C++ React TypeScript C# JavaScript Node.js Scala Java Rust Go Kotlin ASP.NET Azure DevOps .NET JAX ROS PX4 Ardupilot NET Core Qt ASP.NET Core Entity Framework+170 more

What SR2 | Socially Responsible Recruitment | Certified B Corporation™ Is Building

Challenges

  • Scaling engineering capability
  • Messy pdf extraction
  • Integrating emerging technologies
  • Data validation at scale
  • Model selection trade-offs
  • Defining technology roadmap
  • Operationally proven uav platforms
  • Frontend leadership gap
  • Expanding product suite into renewable energy
  • Delivering scalable software solutions

Active Projects

  • Llm orchestration pipelines
  • Generative ai features
  • Building large-scale foundation models for biological data
  • Advanced uav and autonomous aircraft programmes
  • Backend architecture evolution
  • High-performance react application scaling
  • Technology roadmap for advanced uas platforms
  • Technical documentation
  • Production-grade software development
  • Core learning systems

Hiring Activity

Accelerating75 roles · 70 in 30d

Department

Engineering
59
Sales
7
Ops
2
Security
2
Data
1
Product
1
Support
1

Seniority

Senior
40
Mid
19
Manager
7
Lead
4
Principal
2
Director
1

Notable leadership hires: Chief Engineer, Inside Sales Lead Generation

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About SR2 | Socially Responsible Recruitment | Certified B Corporation™

SR2 is a B Corporation recruitment group founded in 2017, headquartered in Bristol, UK, with 51–200 employees. The firm specializes in three domains: placing technologists into climate and renewable energy projects (Tech for Impact and Clean Energy divisions), staffing central government public services, and now operating its own consulting and software practices. Engineering-led hiring (59 of 73 active roles) and projects around autonomous UAVs, LLM pipelines, and foundation models suggest the company is building proprietary platforms alongside its labor-market function. Active hiring spans the United States, United Kingdom, Germany, and Peru.

HeadquartersBristol, Avon,
Company Size51–200 employees
Founded2017
Hiring MarketsUnited States, United Kingdom, Germany, Peru

Frequently Asked Questions

What tech stack does SR2 use?

PyTorch, TensorFlow, JAX, scikit-learn, Kubernetes, Docker, React, TypeScript, Python, C++, ROS, Ardupilot, Node.js, Scala, Rust, Go, Java, C#, .NET Core, and Azure DevOps.

What countries is SR2 hiring in?

United States, United Kingdom, Germany, and Peru.

How this profile is built

SR2 | Socially Responsible Recruitment | Certified B Corporation™'s technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.