Backend / Cloud Developer – JavaScript & TypeScript (SAP BTP Platform) (m/f/d)

Testo SE & Co. KGaA; Albergaria-a-Velha; On-site; EUR 42,000 - 65,000; Full time

Job summary

Testo SE & Co. KGaA in Portugal seeks a skilled backend/cloud developer to build services and APIs on SAP BTP, progressing to extensions across S/4HANA with Clean Core principles. Work alongside SAP specialists and ABAP/S/4HANA developers in a cross-country, international team.

You will grow into SAP CAP/RAP, CDS views, and OData topics while delivering robust, well-documented solutions. A structured onboarding and mentoring approach support your progression.

Qualifications

• Strong experience in backend or full-stack development with JavaScript/TypeScript and Node.js.
• Solid experience designing and implementing RESTful APIs and integrating with external systems.
• Hands-on experience with Git and CI/CD pipelines.
• Comfortable working in cloud/PaaS environments.

Responsibilities

• Design, build, and maintain backend services and RESTful APIs with JavaScript/TypeScript and Node.js on SAP BTP.
• Learn SAP CAP and RAP to extend S/4HANA services with CDS views and OData gradually.
• Apply Clean Core principles to keep extensions upgrade-safe and well-documented.
• Collaborate with ABAP/S/4HANA developers, business units, and IT to deliver robust solutions.

Skills

JavaScript/TypeScript

Node.js

RESTful APIs

External systems integration

Git

CI/CD

Cloud / PaaS

Education

Bachelor's degree in Computer Engineering or related field

Job description

Testo, with its headquarters in the Black Forest/Germany, is a world market leader in the field of portable and stationary measurement technology. Worldwide, roughly 3900 employees research, develop, produce and market innovative measurement solutions for Testo. The basis for this success, in addition to the highly qualified and motivated staff, is the above-average commitment to a future-oriented development - roughly 10% of the annual concern turnover is invested in Research & Development. With 37 subsidiary companies and over 80 distribution partners, Testo is represented on all five continents.

Role Description

As part of our commitment to driving innovation and digital transformation, we are seeking a skilled and motivated backend/cloud developer to join our team. In this role, you will design and build modern services and APIs on SAP Business Technology Platform (BTP), working alongside our SAP specialists, and grow over time into owning extensions and integrations across our S/4HANA landscape in line with Clean Core principles.

• Modern Backend & API Development: Design, build, and maintain services and RESTful APIs using JavaScript/TypeScript and Node.js, deployed on SAP BTP's cloud-native runtime.
• Structured Growth into SAP: Learn SAP CAP and RAP to develop and extend business services, paired from day one with an experienced SAP colleague. You'll take on CDS Views, OData services, and Cloud Integration (CPI) topics progressively, with a defined ramp-up plan rather than being expected to arrive at SAP-fluent.
• Clean Core & Extension Strategy: Apply Clean Core principles to keep S/4HANA extensions sustainable and upgrade safe. Maintain high standards of code quality, testing, and documentation.
• Cross-Functional Collaboration: Work closely with our ABAP/S/4HANA developers, business units, and IT teams to analyze requirements and deliver robust technical solutions.

What We Offer

• A dynamic role where you keep working with modern cloud and backend technology — not a one-way move into legacy SAP development.
• A structured onboarding path into SAP BTP/CAP with dedicated pairing and mentoring from senior colleagues, not unsupported immersion.
• Direct influence on how we modernize our SAP extension approach, as part of our Clean Core and Cloud-first transformation.
• An international, cross-country working environment (Germany, Portugal, China) with a genuine continuous-learning culture.
• Competitive remuneration benchmarked against the modern backend/cloud market.

Your Profile

Education

Bachelor’s degree in Computer Engineering or related fields.

Must-have

• Strong experience in backend or full-stack development with JavaScript/TypeScript and Node.js
• Solid experience designing and implementing RESTful APIs and integrating with external systems
• Hands-on experience with Git and CI/CD pipelines
• Comfortable working in cloud/PaaS environments

Nice-to-have

• First exposure to SAP BTP, CAP, SAPUI5/Fiori, or S/4HANA APIs
• Familiarity with event-driven architectures or messaging (Event Mesh, Kafka, or similar)
• Genuine interest in learning ABAP and S/4HANA concepts over time

Languages

Very good command of written and spoken English.

Personal Attributes

Strong analytical thinking, problem-solving ability, proactiveness, adaptability, and collaboration skills in an international, cross-country team. Comfortable being the person who brings modern engineering practice into an SAP-centric environment, and curious rather than reluctant about SAP.

Testo SE & Co. KGaA, Albergaria-a-Velha