Senior Python Engineer (UK)

About Authentise

Do you get excited by token usage leaderboards and forced AI tooling adoption? Neither do we. We are in need of an actual engineer to write actual code that runs inside actual customer networks. The only targets we care about are speed, quality, and stability. We are not AI doomers, we believe each engineer we hire knows their strengths, weaknesses, and preferences well enough to decide what tooling they need to complete their work to this standard

Position Overview

We are seeking a highly motivated and exceptionally independent Backend Engineer to drive the design, architecture, and scale of our core platform. You will work across our backend stack—databases, APIs, data intensive processes, and cloud infrastructure.

Authentise is an engineer-led design organisation where full ownership is the expectation. We do not ‘spoon feed’ tickets, we expect everyone to have the skills and desire to contribute to, if not lead, feature and platform design projects. You’ll collaborate closely with product, engineering, and leadership to iteratively design and focus new features and performance improvements, prior to implementation.

We take platform ownership seriously, and first and foremost the platform is owned by those who build it.

What You’ll Do

• Architect and develop data intensive services
• Lead system architecture and technical decisions with a high degree of autonomy
• Write a high volume of robust, high-quality code
• Participate in rigorous code reviews and enforce best practices.
• Work with cloud infrastructure (AWS, GCP, or Azure)
• Optimize application performance and reliability
• Integrate with manufacturing systems, data pipelines, and external tools

Qualifications
Required:

• Minimum 3+ years of experience in backend development
• Non-negotiable: Demonstrable design experience in software development
• Proven track record of delivering high volumes of production-ready, high-quality code.
• Experience building RESTful APIs or GraphQL services
• Familiarity with cloud platforms and DevOps workflows
• Solid understanding of databases (SQL and/or NoSQL)
• Ability to thrive in high autonomy, fast-paced startup environment

Nice to Have:

• Experience in manufacturing, CAD/CAM, or additive manufacturing
• Experience with real-time data systems or IoT integrations
• Familiarity with containerization (Docker, Kubernetes)
• Startup or early-stage company experience

Why Join Us

• Build impactful technology in a rapidly growing industry
• High ownership and influence on product direction
• Work with a passionate, collaborative team
• Competitive salary + equity options
• Flexible work environment

Diversity and Inclusion at Authentise

We believe diverse perspectives make us stronger. We welcome applicants from all backgrounds and encourage anyone who is excited about our work to apply, even if they don't meet every qualification listed. We are committed to a fair and inclusive hiring process where every candidate is evaluated based on their skills, experience, and potential.