Job Description

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Australia (Sydney preferred) / Remote-friendly / Compensation - Base salary based on experience + ESOP + free Christmas shutdown leave

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Hachiko builds software that optimises, controls, and operates real energy storage assets. Our platform sits at the intersection of energy markets, complex multi-variable forecasting, real-time control, and distributed backend systems , where correctness, reliability, and explainability matter.

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We’re looking for a Senior Software Engineer (Energy Systems) who thinks in terms of systems, not isolated components — someone who can see how services, data flows, and control logic fit together, and who anticipates the knock‑on effects of changes rather than shipping code that only “works locally”.

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This is a hands‑on individual contributor role with a strong emphasis on writing high‑quality production code, combined with a high degree of autonomy and technical ownership. The role expects the ability to lead through design, sound judgment, and influence — shaping solutions, guiding technical decisions, and collaborating closely with peers — without formal people‑management responsibilities.

What you’ll do n

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- Design and build backend services in domain‑critical areas (markets, control, telemetry, platform)
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- Work on distributed systems with event‑driven and asynchronous workflows
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- Reason about system‑wide behaviour — including failure modes, recovery, and operability in production systems — rather than just local component correctness
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- Build software that is reliable, explainable, and easy to evolve without causing cascading failures elsewhere in the system
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- Collaborate closely with engineers and data scientists across the stack to ensure components fit together coherently
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What we’re looking for nn
- Strong software engineering skillset, with deep expertise in at least one of :
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- Energy markets (any geography)
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- Control systems or real‑time decision‑making software
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- Distributed backend systems operating at scale
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- Regulated, safety‑critical, or financially critical systems
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- Experience working with complex systems and operating production environments
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- Systems thinking : you naturally consider how changes to one part of the system affect behaviour, performance, and failure modes elsewhere; you avoid building “perfect” local components that don’t integrate well or that introduce hidden coupling
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- A bias toward clarity, ownership, and learning from real system behaviour
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Nice to have nn
- Practical application of Domain‑Driven Design (DDD) principles to model complex problem spaces
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- Experience with cloud platforms, preferably AWS
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- Writing production‑grade code in Go, Rust, or Python
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- Familiarity with event‑driven architectures; knowledge of Kafka or other brokers
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- TimescaleDB (TigerDB) or time‑series data systems
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- Grafana or similar visualisation tooling
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- Energy storage, power systems, or IoT integrations
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- Thoughtful use of AI‑assisted development tools, with solid ownership of code quality
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Why Hachiko? n

We’re one of the fastest‑growing energy software businesses in the world, having become a force to be reckoned with in just 1 year from humble beginnings. We don’t faff around, focusing on what matters and ruthlessly discarding what doesn’t.

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At Hachiko, you’ll work on systems where engineering decisions have real economic and physical consequences . We operate with high trust, high autonomy, and high standards, favouring clear thinking, decisive ownership, and collaboration over hierarchy.

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If you enjoy building software that must work in the real world, under real constraints, with high‑calibre colleagues and customers, this role is for you.

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We value Trust , Humility , Decisive Ownership, Empathetic Honesty, Excellence through Collaboration , and Adaptation with Intention . We’re allergic to brilliant‑but‑toxic behaviour. We look for people who combine strong judgement with humility and respect for others.

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You can read more about our values, the associated behaviours, and anti‑patterns here.

How to Apply n

If you’re interested, please send an e‑mail to with the subject - “ - Software Engineer” and containing:

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- A copy of your CV
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- A 2‑minute video (using Loom or similar) explaining why you would be the best candidate for the role. We suggest dividing it into 50% technical, 50% cultural.
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📌 Software Engineer - Energy Systems (Senior/Lead) (Townsville)
🏢 Hachiko
📍 Townsville