Senior Back End Engineer – Integrations

• Collaborate closely with engineers, product designers, and product to perform experiments and test new ideas
• Build performant, design-centric, reusable and usable interfaces that solve complex needs
• Drive user-defined data modeling and performance through reusable building blocks such as models, variables, and formulas
• Take operational responsibility for written components
• Work on challenging tasks and projects while acquiring new skills during hack time
• Incorporate customer feedback with product and operations teams to continuously improve the product
• Scale the complex data and calculations platform for increasing client volume, size, and complexity
• Move across multiple programming languages and ecosystems to read, adapt, and extend integration-specific code
• Lead the design and development of Abacum's integrations platform for ingesting, normalizing, and annotating business data
• Build and scale bidirectional integrations with billing, accounting, ERP, commerce, and HRIS platforms
• Architect low-code/no-code tools and select integration strategies to accelerate development and maintenance
• Ensure integrations are secure, resilient, and performant at scale for high-volume financial and transactional data
• Translate complex workflows into intuitive software experiences with product, design, financial experts, and customers
• Establish technical standards and guide architecture for integrations and data-heavy systems

• 7+ years of experience, at least 2+ of which are on 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 in tackling ambiguous, high-stakes technical problems like low-code builder design, LLM-assisted workflows, and data enrichment
• Pragmatic judgment: know when to ship quickly vs. when to invest in foundational architecture
• Ability to work with multiple programming languages and ecosystems, including Python, Django, ERP scripting frameworks such as SuiteScript, native app extensions, and third-party vendor SDKs
• Experience with OAuth 2.0 / OIDC, SSO providers, SAML, service-to-service authentication, access and refresh tokens, JWT, API keys, TLS/HTTPS, signed requests, and secret management

• Competitive compensation including equity package
• Competitive vacation policy
• Medical Insurance
• L&D budget
• Access to Meditopia (wellbeing platform)
• Language courses (English / Spanish)