Founding Senior Software Engineer, Platform & SaaS

Signify Technology; United Kingdom; On-site; GBP 90,000 - 130,000; Full time

Job summary

Signify Technology is helping a green-tech startup hire a Senior Software Engineer to own the platform end-to-end, collaborating directly with the CEO and a Senior Data Scientist. The role focuses on building site analysis and planting design features, and scaling multi-tenant SaaS with security, reliability and usability at the core.

You will work with TypeScript across Node.js and React, manage AWS infrastructure, CI/CD pipelines, observability, and disaster recovery, and shape architecture

Qualifications

• Strong TypeScript across Node.js and modern React.
• Solid AWS + Infrastructure as Code experience.
• Strong understanding of application security — authentication, sessions, secrets, TLS, headers, WAF and IAM.
• Experience running production services: CI/CD, containers, observability and safe migrations.
• Test-first mindset and a preference for clean, reviewable changes.
• Strong product mindset with experience shipping user-facing features.

Responsibilities

• Build and ship features for site analysis and planting design.
• Own the platform across security, reliability and usability.
• Harden and launch the existing AWS environment.
• Own infrastructure-as-code and the deployment pipeline.
• Build proper alerting, observability and disaster-recovery processes.
• Improve performance, accessibility and overall product polish.
• Develop multi-tenant SaaS capabilities.
• Work directly with users and the CEO to turn real requirements into product features.

Skills

TypeScript

AWS

Infrastructure as Code

Security

CI/CD

Observability

Node.js

React

Containers

Tools

AWS

CI/CD

Job description

Signify Technology is helping a green-tech startup hire a Senior Software Engineer to own the platform end-to-end, collaborating directly with the CEO and a Senior Data Scientist. The role focuses on building site analysis and planting design features, and scaling multi-tenant SaaS with security, reliability and usability at the core.

You will work with TypeScript across Node.js and React, manage AWS infrastructure, CI/CD pipelines, observability, and disaster recovery, and shape architecture