Senior Software Engineer

If you are motivated by hard technical problems, comfortable with ambiguity, and want to apply technology to something that genuinely matters in an early-stage company, this role will suit you.

Responsibilities

• Design, build and maintain full-stack systems, from databases through APIs to user-facing and offline mobile field tools.
• Build internal and client-facing interfaces for monitoring data pipelines, field work and outputs.
• Work closely with ecologists, analysts and other non-engineers, translating real-world workflows and constraints into robust software.
• Work with geospatial and annotation tools used by ecologists and domain experts.
• Design, operate and improve data layers that are reliable and easy to reason about (PostgreSQL, LakeFS, S3 data lakes, etc).
• Work on data-intensive systems ingesting tens of terabytes of new data per month, where correctness and auditability matter.
• Improve system reliability and scalability, including owning systems in production.
• Debug real incidents, communicate clearly with internal stakeholders, and ship fixes with a bias for learning and prevention. On-call is light and primarily business hours orientated.
• Take responsibility across the entire product development lifecycle, from problem framing to delivery and operation.
• Influence product shape, not just implementation. You will be expected to challenge assumptions and help validate what is worth building.
• Be accountable for outcomes, not just output.
• Make architectural trade-offs under uncertainty and be trusted to say "no" when something is the wrong solution.
• Operate with minimal oversight, lead by default in your areas of ownership, and raise the technical bar through example.
• Contribute to technical direction and ways of working. People management is possible but not required.
• Comfort working across the stack, rather than specialising.

• Genuine interest in nature, climate, or environmental outcomes. This is not a side detail.
• A pragmatic startup mindset. You care about solving the right problems first.
• Care for data quality and correctness.
• Experience writing code that other people can understand, review and maintain.
• Familiarity with Git and collaborative code review.
• Comfort working in a fast-moving, early-stage environment where priorities evolve and not everything is fully specified upfront.
• Clear, professional spoken and written English.
• +/- 2 hours GMT. UK or Western Europe time zones are preferred.
• Several years of experience building production systems in Python (or similar), ideally with Flask or Django.