Data Analyst RSE

The core mission is to take ownership of Chronopost's carbon calculator, the tool that generates emissions balances for clients. Day‑to‑day, this means reviewing the algorithms behind parcel‑level emissions calculations, correcting anomalies, updating reference databases, and proposing new functionalities in close collaboration with Geopost's technical teams. Because the role has privileged access to the underlying databases, you will also analyse how different client profiles and shipping patterns translate into calculated emissions, effectively becoming a detective of data inconsistencies. Beyond the calculator, you are the data referent for the whole RSE department. That involves strengthening the collection, structuring and reliability of environmental data across carbon, energy and waste, then building and maintaining dashboards that track Chronopost's RSE roadmap. You would also support colleagues in using that data day‑to‑day, which is as much a coaching role as a technical one. Over the longer term, the mission is to raise the maturity of environmental data at Chronopost so it can withstand client scrutiny, internal steering needs, and likely regulatory pressure. Success looks like a carbon calculator clients trust, and an RSE team that no longer debates whose spreadsheet is correct but instead debates what actions to take.

The most immediate learning is on carbon accounting in practice. Working on a live calculator that produces client emissions balances for parcel transport gives exposure to emissions factor logic, scope 3 modelling, and the methodological choices that standard Bilan Carbone training only covers in theory. You would also deepen your SQL and data‑handling skills on large, real logistics datasets, not sandbox exercises. Because the role sits at the interface with Geopost's DSI, you would gain fluency in how environmental data flows through APIs, JSON structures and reporting tools such as Microstrategy or Google Sheets. This kind of end‑to‑end data pipeline understanding is rare in sustainability profiles and highly transferable. Mentorship is likely to come from two directions: the Responsable Performance Climat on methodology and climate strategy, and IT/data colleagues on technical implementation. There may also be room to pursue or refresh certifications such as Bilan Carbone, which would formalise the practical experience gained on the job.

The ideal candidate has a minimum Bac+3 in data, business intelligence, engineering or a related field, and genuinely enjoys the technical side of data work. SQL is non‑negotiable, as is comfort navigating JSON data and understanding how APIs function. Familiarity with a visualisation tool like Microstrategy would be a strong asset for the reporting side, and knowledge of Google Workspace, especially Sheets, is a useful plus. Just as important is the mindset. This role rewards someone with critical thinking and analytical rigour, the kind of person who enjoys digging into an algorithm to find why two numbers disagree. Pragmatism matters too, because recommendations need to be actionable, not theoretical. Autonomy is expected: you should be able to chase information and manipulate large datasets without constant hand‑holding. Finally, pedagogy and a sense of collective work are essential. You will be translating between technical IT experts and RSE professionals, which requires the ability to explain data issues clearly to non‑specialists. A first experience or training in carbon accounting, such as Bilan Carbone, is a plus, but a strong appetite for climate and RSE topics is arguably the differentiator.

Because the role is hybrid (part carbon methodology, part data engineering) your application should make both dimensions visible rather than hiding one behind the other. If you have done SQL on messy production data, say so with a concrete example of a data quality problem you diagnosed and fixed. If you have any exposure to emissions calculations, emissions factors or Bilan Carbone methodology, foreground it, even if it came from a course rather than a job. Chronopost's posting is unusually specific about the tools: SQL, JSON, APIs, Microstrategy, Google Sheets. Mirror that vocabulary where it is genuinely true for you, and avoid generic claims about being 'passionate about sustainability'. A short cover note explaining why parcel‑level emissions data is interesting, because it lets shippers compare and reduce their delivery footprint, would signal that you understand the business context, not just the data stack. In interview, expect to be probed on how you would audit a calculation you did not build. Prepare to talk through a method: verify inputs, check reference data, test edge cases, compare outputs against expectations. Also prepare to explain a technical data issue to a non‑technical RSE audience, since that translation skill is central to the role.

The role focuses squarely on environmental data, particularly carbon. Chronopost has committed to net zero emissions by 2040, and the carbon calculator is the instrument that converts its transport activity into measurable emissions figures, both internally and for clients. By fiabilising that calculator, the Data Analyst directly supports the credibility of the company's decarbonation claims. Beyond carbon, the data scope covers energy and waste, feeding the broader RSE roadmap. This data underpins how Chronopost steers its transition, for example, understanding the emissions intensity of different delivery modes, routes or service levels. The client‑facing dimension is significant: shippers increasingly demand emissions data for their own scope 3 reporting, so the calculator is effectively a commercial and compliance tool as much as a sustainability one. The governance angle is also present. Producing reliable, auditable environmental data is a prerequisite for regulatory compliance, and for defending Chronopost's environmental positioning against scrutiny. This role is less about communication and more about building the factual foundation that any credible sustainability narrative requires.

One clear challenge is legacy complexity. Carbon calculators built up over years often contain historical assumptions, inconsistent reference data and algorithmic shortcuts. Auditing such a tool while it is still in use, without breaking client reporting, requires care and diplomacy. You may find that fixing an anomaly has knock‑on effects on previously published figures, which can be politically sensitive. Another challenge is the interface role itself. Sitting between the RSE team and Geopost's IT teams means competing priorities, different vocabularies and potential dependency on teams outside your direct line of command. Progress on calculator improvements may depend on resources you do not control, testing your ability to influence without authority. Finally, data quality in logistics is inherently messy. Parcel‑level data comes from multiple systems, partners and formats, and anomalies are the norm rather than the exception. The role requires tolerance for imperfect data and the judgement to know when something is good enough, rather than chasing perfection indefinitely.

A typical day would likely start with checking data pipelines and dashboard refreshes, making sure the environmental indicators feeding the RSE team are current and plausible. You might then spend a focused block writing or debugging SQL queries, investigating a specific anomaly in the carbon calculator or reconciling figures between systems. This is deep, solitary work, but punctuated by exchanges. Meetings would vary widely. There could be a working session with Geopost's technical teams on an API or data model issue, a catch‑up with the Responsable Performance Climat on priorities, or a walkthrough with an RSE colleague who needs help interpreting a dashboard. You might also prepare or refine a client‑facing emissions analysis, checking that the calculation makes sense for a particular shipping profile. Variability comes from the rhythm of reporting cycles and client requests. Around reporting deadlines, the pace intensifies and the focus shifts to consolidation and quality control. At other times, there is more room for improvement projects, such as proposing a new calculator feature or restructuring how a dataset is collected.

The role sits at a valuable intersection of data and sustainability, a combination that is increasingly in demand and relatively scarce. From here, natural progression could be toward a climate data lead or RSE data manager position, especially as environmental reporting requirements tighten and companies need dedicated data stewardship. Internal moves within the Geopost or La Poste group, which is large and diverse, could also open up. Skill‑wise, the exposure to carbon accounting methodology, large‑scale logistics data and reporting tools builds a profile that is portable across industries. Someone who masters both the climate methodology and the data engineering side can credibly move into consultancy, ESG tech, or broader sustainability strategy roles later on. There is also growth in visibility. The carbon calculator is client‑facing and strategically important, so improvements to it are likely to be noticed beyond the RSE team. Leading a successful overhaul of part of that tool would be a concrete achievement to carry forward, and could position you as the go‑to person for environmental data within Chronopost.

The most immediate stakeholder is the Responsable Performance Climat, to whom the role reports. This is a close working relationship centred on methodology, priorities and interpreting results, so alignment on what 'good data' looks like will be essential. Internally, you would interact frequently with the wider RSE team, acting as their data referent and helping them use dashboards and indicators. On the technical side, the key counterpart is Geopost's DSI, since the carbon calculator is developed and maintained in collaboration with the group. These interactions require translating RSE needs into technical requirements and vice versa. Externally and commercially, the outputs of your work reach Chronopost's clients, who receive emissions balances for their shipments. You may not deal with them directly, but their needs shape the reliability requirements. There may also be indirect interaction with auditors or regulators if the environmental data feeds compliance processes, making the quality of your work externally visible.