Principal Software Engineer

Role Overview

• Own and evolve key elements of the software architecture across multiple products, ensuring solutions are scalable, secure, resilient, and cost‑effective
• Define and steward a clear, coherent integration architecture across our products and wider ecosystem, including principles and patterns for APIs, data ownership, and identity
• Establish and maintain architectural guardrails (standards, reference architectures, decision records) that enable teams to deliver autonomously while staying aligned
• Lead technical strategy on foundational capabilities that improve scalability, security, reliability, and engineering productivity as the organisation grows
• Influence product and engineering roadmaps by identifying systemic risks, architectural bottlenecks, and high‑leverage technical investments
• Act as a trusted technical authority for high‑impact decisions, balancing short‑term delivery needs with long‑term sustainability and total cost of ownership
• Raise the bar for operational excellence by helping teams adopt proven patterns for reliability, performance, security, and observability
• Invest in reusable foundations: tooling, libraries, templates, CI/CD improvements, and reference implementations to reduce friction and make high‑quality delivery the default
• Engage hands‑on selectively and deliberately, focusing on: de‑risking complex areas and proving out new approaches
• Champion pragmatic approaches to technical debt, helping teams make informed trade‑offs while keeping long‑term health visible and managed
• Support teams in addressing root causes of incidents and systemic issues through learning‑focused reviews, automation, and durable architectural improvements
• Mentor senior and mid‑level engineers to strengthen architectural thinking, technical judgment, and their ability to lead complex initiatives
• Use design reviews, technical forums, pairing, and lightweight coaching to uplift capability across teams, focusing on enabling teams to solve problems independently
• Influence through clarity and collaboration: articulate technical direction, explain trade‑offs, and build alignment across teams and stakeholders
• Be intentional about where you engage, prioritising work that unblocks multiple teams, creates shared platforms, or removes recurring friction, rather than owning the most “interesting” problems yourself

Requirements

• Proven track record of designing, developing, and operating complex software systems that support business critical use cases
• Strong architectural experience, with evidence of shaping systems that scale across teams and products
• Significant experience designing and evolving APIs, integration patterns, and distributed systems
• Deep expertise in at least one core technology area, with sufficient breadth to reason effectively across a modern cloud native stack
• Exceptional technical problem solving skills, including working effectively through ambiguity
• Ability to influence technical direction across teams through credibility, communication, and sound judgment
• Strong written and verbal communication skills, able to engage engineers, product leaders, and senior stakeholders
• Clear understanding of operational requirements (availability, performance, security, monitoring) and how they shape good design
• Fluent English (C1 level or above)
• **only CVs submitted in English will be considered. **
• Experience working in a platform or ecosystem‑style product environment (Desirable)
• Experience evolving architectures in fast‑growing or scaling organisations (Desirable)
• Familiarity with data platforms, or large‑scale integration (Desirable)
• Experience influencing technical strategy without formal authority (Desirable)

Tech Stack

• Cloud
• Distributed Systems

Benefits

• The opportunity to substantially influence major decisions in the energy sector
• The opportunity to grow into a publicly visible industry expert
• A fun, informal, collaborative and international work culture
• A competitivre compensation package
• Hybrid working model (our office is located close to Brigadeiro subway station in São Paulo, SP)
• Access to the Aurora Academy, our training programme offering a range of opportunities to develop your skills within the responsibilities of your role and within the wider context of the industry