Why this role stands out
This high-impact role at Costain offers you the unique opportunity to shape strategic decision-making through predictive data architecture, all while enjoying the flexibility of a hybrid work environment. You will thrive here if you are a proactive problem-solver who enjoys translating complex datasets into clear, actionable narratives that drive project success. Apply now to accelerate your career and make a tangible difference within a forward-thinking team.
Quick overview
Job description
Data Architect - London
Job DescriptionPurpose
Turn disparate project and financial data into clear, proactive insight - linking trends, early warnings, and predictive signals to decisions made by senior stakeholders and the leadership team. You'll work with and around existing reporting requirements, adding analysis that explains the "why" and "what next," not just the "what."
Key Outcomes
- Early warning: Detect leading indicators of cost/schedule variance, risk exposure, and delivery slippage before they surface in monthly reporting.
- Predictive view: Build lightweight forecasts and scenarios that quantify impact and recommend mitigations.
- Decision support: Deliver concise, executiveready narratives (onepagers, briefings) that drive action.
What You'll Do
- Analyse large, multisource datasets (cost, schedule, risk, change, progress) to uncover trends, drivers, and anomalies.
- Perform timeseries, regression, variance and sensitivity analyses; translate results into clear recommendations .
- Create fitforpurpose visuals (e.g., small-multiple charts, runcharts, control charts) to evidence findings - no "dashboard factory."
- Define and track leading KPIs and thresholds; set up alerts and watchlists for emerging risks.
- Partner with PMO/Project Controls/Finance to align insights with the reporting cycle and governance forums.
- Improve data quality and consistency; shape simple data models that make recurring analysis faster.
Flexible working: We welcome you to ask about the flexibility you need. This might be part-time, remote working, or compressed hours for example. Anyone who applies for a role can ask about flexibility at interview. In return, we will explore what is possible for the role.
The Ideal Candidate
What You'll Bring
- Strong analytical toolkit: advanced Excel (modelling, Power Query, complex formulas), sound statistics, and storytelling with data .
- Working knowledge of Power BI for light modelling/visuals (deep dashboard development not required).
- Ability to join the dots across data, context, and delivery realities; crisp written and verbal communication for senior audiences.
- Experience operating in fastpaced project environments and influencing through evidence.
Nice to Have (Desirable, not essential)
- Project Controls background (EV, cost & schedule analytics, trends, PMB, WBS) and/or Finance (budgeting, forecasting, variance).
- Ability to interpret Primavera P6 outputs (logic, slippage, float) and link schedule signals to cost/risk.
- Exposure to major infrastructure programmes.
- SQL and/or basic Python/R for heavier analysis or repeatable workflows
- Demonstrable experience in the development of reports and dashboards to a diverse set of stakeholders in a fast paced environmen
- Highly skilled in mainstream BI tools (including but not limited to Power BI
- Understand and promote data qualit
- Knowledge or experience with Extract Transform Load (ETL
- Knowledge with Azure integration services
About The Company
The role will work on the HS2 project. HS2 is the UK's new high speed rail network. It will be a catalyst for economic growth across Britain, freeing up space on the existing railways and connecting 8 out of the UK's 10 biggest cities with fast, reliable and frequent high speed services
The Skanska | Costain | STRABAG (SCS JV) is delivering the HS2 London Tunnels Contract. Scope of works includes twin-bored tunnels (TBM), SCL tunnels, shaft sinking, bridge demolition and reconstruction, services diversions, earthworks and the construction of site compounds.
You'll be a welcomed member of the wider team, with opportunities to take on additional responsibility, join our EDI Champions program or support the local community (e.g. as a STEM ambassador).
Your personal and professional development is important to us. We welcome a discussion about how we can support you with further study, or professional membership or attainment for example.
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