Senior Fullstack Engineer

Were looking for a Forward-deployed Engineer to sit at the intersection of Product Engineering and our Go-To-Market teams embedded directly with partners and customers to ship integrations fast acting as the primary technical owner for every integration in your portfolio.

Youll own the full integration lifecycle from qualification to handoff working hands-on with technical and non-technical stakeholders on both sides. Youll write real code shape the integration framework and feed patterns back into the platform.

In this role you will:

• Own the full integration lifecycle for partners and customers who need hands-on delivery support qualification scoping build and handoff
• Run Phase 0 qualification assessments mapping systems data flows risk surface and build approach before committing to timelines
• Build and configure integration connectors data mappings and partner adapters using Claras integration framework and shared libraries
• Coordinate directly with partner technical teams throughout the build acting as the primary technical point of contact
• Partner with Platform/API squads to leverage core primitives (webhooks auth patterns event contracts) and flag reuse opportunities
• Ensure every integration meets Claras standards: idempotency observability secrets management data minimization and sandbox testing
• Drive clean handoffs delivering runbooks dashboards on-call assignments and support playbooks before marking an integration as done
• Feed learnings back into the platform: identify patterns that should become shared libraries or configuration

Who you are

Were looking for someone who meets the minimum requirements to be considered for the role.

Must haves:

• Experience working directly with external partners or customers in a technical capacity youre comfortable owning the relationship not just the code
• Working directly with end customers
• Designing the solution from scratch to meet customer needs
• Great communication skills
• 4 years of backend software development experience with hands-on exposure to API integrations webhooks and data mapping
• Deep fluency in integration patterns: REST event-driven architectures OAuth/token management idempotency
• Ability to move fast in ambiguous environments: qualify a new integration request scope it and start building within days
• Strong proficiency in one or more backend languages (preferably Java) and comfort working across multiple systems and tech stacks
• Working knowledge of observability fundamentals: logs metrics tracing alerting and SLOs
• You use AI tools as a force multiplier from scaffolding connectors to automating repetitive mapping work
• Working proficiency in English and Spanish or English and Portuguese
• Excellent communication skills with both technical and non-technical audiences
• Exposure to integration platforms or connector frameworks (e.g. N8N Zapier or custom-built equivalents)

Nice to haves:

• Experience in fintech payments or financial data infrastructure
• Familiarity with PCI/PII data handling and compliance requirements
• Experience with AWS Kafka or event streaming platforms
• Proficiency in all three languages (Portuguese Spanish and English) is a strong plus
• A good sense of humor

At Clara youll have the autonomy speed and support to make meaningful impact not just on your team but on how organizations are run across Latin America.

• Were the leading B2B fintech for spend management in Latin America.

• Certified as one of the worlds fastest-growing companies a Great Place to Work and a LinkedIn Top Startup.

• Passionate about making Latin America more prosperous and competitive.

• Constantly innovating to build financial infrastructure that enables each of our customers to thrive.

• Product-led high-talent-density culture designed for builders who raise the bar.

• Proud of our open inclusive and values-driven environment.

• #Clarity. We say things clearly directly and proactively.

• #Simplicity. We reduce noise to focus on what really matters.

• #Ownership. We take responsibility and never wait to be told.

• #Pride. We build products and experiences were proud of.

• #Always Be Changing (ABC). We grow through feedback risk-taking and action.

• #Inclusivity. Every voice counts. Everyone contributes to our mission.

• Competitive salary and stock options (ESOP) from day one

• Multicultural team with daily exposure to Portuguese Spanish and English (our corporate language)

• Annual learning budget and internal accelerated development paths

• High-ownership environment: we move fast learn fast and raise the bar together

• Smart ambitious teammates low ego high impact

• Flexible vacation and hybrid work model focused on results

If youre ready for growth ownership and impact apply now and help us redefine B2B finance in Latin America.

Claridians in a hybrid mode split their time between working from the office talking to or visiting customers or working from home. This hits a balance between bringing people together for in-person collaboration and learning from each other while supporting flexibility about how to do this in a way that makes sense for each individual and team.

We dont enforce a minimum number of days for most roles but youre expected to spend time at the office organically and be at the office most days during your ramp-up or when required by your leader.