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Senior SAP / ABAP EngineerCausa Prima · Madrid

Causa Prima

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Senior SAP / ABAP Engineer

🗓️ Posted 2026-09-17 Madrid Fulltime Hybrid ICT
💰 Salary Not shared 📊 Market 3,000 EUR–4,500 EUR/mo

About the Company

You'll own the layer where Causa Prima meets the SAP systems our customers run their finance on. Most of the data we care about lives inside S/4HANA and ECC, and you'll be the person who decides how we read from and write to those systems safely, at scale, across very different customer landscapes. This is a senior individual contributor role with real architectural ownership: you'll set the patterns the rest of the team builds on, and you'll be the technical voice in the room when a customer's SAP team asks hard questions.

Responsibilities

  • ● Own the add-on: Architectural ownership of our ABAP add-on in its registered namespace: how it's structured, released, and kept upgrade-safe.
  • ● Clean core and certification: Drive us toward clean core compliance and SAP certification, using released CDS and public APIs wherever they exist.
  • ● SAP data and APIs: Design how financial data moves in and out of SAP (OData, BAPIs, RFCs, IDocs) at production volume.
  • ● FI/CO domain leadership: Turn accounting reality into code: posting logic, payment terms and Skonto, open item management, account determination, tax codes.
  • ● Set the engineering bar: Define the conventions and raise the standard for testability, ABAP Unit coverage, and static analysis (ATC, SCI).
  • ● Data structuring across landscapes: Shape heterogeneous customer setups (charts of accounts, company codes, country versions, ECC versus S/4HANA) into one consistent model.
  • ● Reliability and auditability: Build for idempotency, reconciliation, and traceability, so every action against a customer system is explainable after the fact.
  • ● Customer-facing technical lead: Lead technical discovery and onboarding with finance teams, SAP admins, and customer Basis teams.
  • ● At least 6 years of hands-on ABAP development on S/4HANA and ECC (not configuration with some coding attached).
  • ● ABAP you've shipped into someone else's production system, with the upgrade cycles, transports, and volume problems that follow.
  • ● Deep AP knowledge: three-way match, Skonto postings, blocked invoices, open item clearing, vendor master, payment runs, duplicate detection.
  • ● Strong modern ABAP: CDS views, OO ABAP, ABAP Unit, RAP, and an instinct for upgrade-safe, namespace-clean code.
  • ● Fluency in how third-party systems integrate with S/4HANA and ECC (OData, RFC, IDoc), including where the two data models diverge.
  • ● Judgment about scope and risk, and the ability to explain that call to engineers and executives alike.
  • ● Curiosity beyond the SAP world, and energy for where enterprise systems and AI meet.
  • ● Clear communication with both engineers and finance people, in English; Spanish or German is a strong plus.
  • ● Using AI to leverage ADT services to speed up the development, deployment, testing and analysis while also applying your own expertise to prevent SLOP for entering our code base.AI http://base.AI will also be leveraged to create custom test programs and performance testing scenarios to ensure strong automated testing and code coverage. Bonus points for using AbapGIT
  • ● Nice to have
  • ● Accounts receivable knowledge alongside the AP side: customer master, incoming payments and cash application, dunning, credit management, and what drives DSO. We build on both halves of the ledger, so the AR experience compounds quickly here.
  • ● You've played with SAP Joule, or at least followed it closely enough to have an opinion on where it helps and where it doesn't.