Senior Backend Engineer – Integrations Platform

Abacum; Barcelona; Presencial; EUR 90.000 - 120.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Competitive compensation including EQU

Competitive vacation policy

Medical Insurance

L&D budget

Meditopia access

Language courses (English / Spanish)

Descripción de la vacante

Abacum, a leading Business Planning platform, seeks a Senior Back End in the integrations team in Barcelona. You will move across languages, read and extend integration-specific code, and help scale our data-heavy platform to support growing client needs.

You’ll collaborate with product, design and customers to translate complex workflows into robust software, design standards, and drive secure, scalable integrations across ERP, billing, and HRIS ecosystems.

Formación

• 7+ years of experience, with at least 2+ in integrations roles.
• Strong background in building integrations for data-heavy use cases.
• Hands-on depth in Python and modern backend systems.
• Experience architecting or working on integrations platforms, data platforms, or similar large-scale API ecosystems.
• Curiosity and persistence tackling ambiguous, high-stakes technical problems.
• Pragmatic judgment: know when to ship quickly vs invest in foundational architecture.

Responsabilidades

• Move across multiple programming languages and ecosystems beyond core stack to read, adapt, and extend integration-specific code.
• Work with authentication and identity flows (OAuth 2.0 / OIDC, SSO, SAML) and manage token lifecycles and secure communications.
• Lead the design and development of Abacum’s integrations platform for ingesting, normalizing, and annotating data.
• Build and scale bidirectional integrations with billing, accounting, ERP, commerce, and HRIS platforms.
• Architect low-code/no-code tools and decide integration strategies to accelerate development and maintenance.
• Ensure integrations are secure, resilient, and performant at scale.
• Collaborate with product, design, financial experts, and customers to translate complex workflows into software.
• Establish technical standards and guide architecture for integrations and data-heavy systems.

Conocimientos

Python

Backend systems

Data integrations

Integrations platform

LLM-assisted workflows

APIs & microservices

Descripción del empleo

Abacum, a leading Business Planning platform, seeks a Senior Back End in the integrations team in Barcelona. You will move across languages, read and extend integration-specific code, and help scale our data-heavy platform to support growing client needs.

You’ll collaborate with product, design and customers to translate complex workflows into robust software, design standards, and drive secure, scalable integrations across ERP, billing, and HRIS ecosystems.