Senior Machine Learning Engineer, Qflow
£75-85k
Qflow is a B2B SaaS scale-up transforming the construction industry
Be an early applicant
Qflow is a B2B SaaS scale-up transforming the construction industry
21-100 employees
Be an early applicant
£75-85k
21-100 employees
Company mission
To provide the data that empowers the world to build responsibly.
Role
Who you are
- 5+ years of experience in a software engineering-focused environment, ideally with production experience of agentic AI
- Advanced proficiency in Python
- A solid understanding of data science principles is a plus
- Experience taking systems from development through to production deployment
- Solid SQL skills and familiarity with NoSQL data stores
- Working knowledge of cloud architectures, distributed systems, and APIs (Azure preferred, but AWS or GCP are valuable)
- Familiarity with LLMs, prompt engineering, NLP, or image processing, and an ability to quickly learn new AI technologies (e.g., RAG pipelines)
- Exposure to CI/CD, infrastructure-as-code tools like Terraform, and containerisation with Docker or similar
- Excellent communication skills, able to explain complex concepts to technical and non-technical audiences
- Collaborative mindset, comfortable mentoring others and improving team capability
- Comfort with ambiguity, prioritisation, and delivering incrementally in a startup environment
What the job involves
- Reporting to our Engineering Manager, and working closely with our Tech Lead, you’ll balance innovation and delivery, researching and shaping early prototypes into robust, production-ready features that take our product to the next level. Here’s what you’ll do day to day:
- Research, prototype, and productionise solutions that deliver real business impact
- Maintain high standards in code quality, testing, documentation, and reproducibility
- Collaborate with Product and other engineers to identify opportunities and translate them into robust, data-driven solutions
- Perform exploratory data analysis (EDA) to identify patterns, validate assumptions, and define approaches on what to build
- As a team member, create new data-related services, integrating them into APIs, pipelines, and Qflow’s wider system architecture
- Contribute to data governance practices, including versioning, lineage, and validation
- Share knowledge, mentor peers, and help embed a culture of data-driven thinking and continuous improvement across the team
Application process
- 30minute Screening Call - with Talent Partner
- 1st stage - 45minute - Teams call with Engineering Manager
- 2nd stage - 90minute - Teams Technical Interview + Task
- Final Interview - 30minutes - Teams - values
Our take
Typically, businesses in the construction industry have endured tensions around sustainability efforts and net zero projects. Qflow, aka Qualis Flow, aims to remedy this, by helping one of the world’s most pollutive industries become greener through data-driven insights that reduce carbon emissions and cut waste.
Combining a team of construction professionals and software engineers, the data analysis services of Qflow benefit both contractors and developers, focussing on ways to make the supply chain more sustainable and environmental audits more bearable and simpler to understand.
After oversubscribed Series A and VC rounds in 2023, Qflow has been expanding its team, growing operations in the UK and breaking new markets in Australia and the US. The company is exceeding expectations, especially factoring in the decline of building projects due to funding and labour shortages. Perhaps Qflow’s solution can even be part of the industry’s reignition.
Steph
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (last 2 of 5 rounds)
Feb 2026
$2.7m
EARLY VC
Jul 2025
$2.3m
SERIES A
Total funding: $17.5m
Company benefits
- 🏡 Remote-first team (we enjoy meeting up from time to time in our London HQ and we would love to see you there too!)
- 💻 Company laptop and tools
- 🏝️ 25 days annual leave + 3 days company closure at Christmas + bank holidays
- 🤒 Paid sick leave
- 🩺 Private medical insurance
- 🏥 Critical illness and life insurance
- 💰 Pension contribution up to 7%
- 👥 Enhanced family policy
- 🙋 Paid volunteering days
- ✈️ We offer up to 90 days of overseas working
- 🌎 We’ll offset your annual carbon footprint on your behalf via Ecologi
- 📚 Learning & development and career progression opportunities
- 🤩 Company social events (online and in person!)
Company values
- Compassionate Candour
- Enduring Ethics
- Act like an Owner
- Curiosity with Action
- Stronger Together
Company HQ
London, UK
Articles
Leadership
Jade Cohen
(Co-Founder & CPO)Currently part of the Start-up Advisory Group for the UK Green Building Council (UKGBC). Previously a member of Cohort 3 at BOOST, EFLD10 Member with Entrepreneur First and Environmental Advisor at Skanska.
Brittany Harris
(Co-Founder & CEO)Member of the Board of Directors for the Environment Agency. Previously Steering Committee Member of the National Infrastructure Commission and Board Member of Cambridge Wireless Limited. Was a member of Cohort 3 of BOOST.
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