Senior Python/Rust Engineer

Overview

Our client is a global cybersecurity company delivering quantum-safe encryption to protect enterprises, governments, and critical national infrastructure. Their advanced cryptography ensures resilience against current and emerging quantum threats, with solutions spanning telecoms, defence, and finance. With recent team expansion, they are seeking a Senior Python Developer in Belfast. This is an opportunity to work on cutting-edge cybersecurity software, across cloud and on-prem environments, in a culture that values innovation, ownership, and collaboration.

What you’ll be doing

• Designing and developing software for encryption intelligence solutions.
• Building scalable, resilient enterprise systems with Python.
• Collaborating with engineers, DevOps, and product teams to deliver high-quality releases.
• Analysing and optimising performance, resolving issues when they arise.
• Supporting Agile development and contributing to continuous improvement.

Responsibilities

• Designing and developing software for encryption intelligence solutions.
• Building scalable, resilient enterprise systems with Python.
• Collaborating with engineers, DevOps, and product teams to deliver high-quality releases.
• Analysing and optimising performance, resolving issues when they arise.
• Supporting Agile development and contributing to continuous improvement.

Qualifications

• Experience with cloud services (PaaS/SaaS, hybrid, or private).
• Database knowledge (SQL/NoSQL).
• Full right to live and work in the UK.

Required Skills

• Strong problem-solving, design, and debugging skills.
• Passion for software development and continuous learning.

Preferred Skills

• Cybersecurity background, CI/CD, AWS/Azure/GCP, Rust, AngularJS, mentoring experience.

Pay range and compensation package

• 25 days holiday + bank holidays
• Pension, Private Medical, Life Insurance, Income Protection
• Bonus Scheme + RSU Equity Package
• Coaching, Parental Leave, Employee Assistance Programme
• Season Ticket Loan, Ride to Work, Travel Insurance, Benefit Hub

Equal Opportunity Statement

Our client is committed to diversity and inclusivity.

Why Join?

• Work on innovative cybersecurity solutions with global impact.
• Hybrid working (2 days in Belfast)
• Competitive salary, equity, and bonus.
• Collaborative culture with opportunities to learn, innovate, and grow.

Referrals increase your chances of interviewing at Ocho by 2x

Seniority level: Mid-Senior level

Employment type: Full-time

Job function: Information Technology

Industries: Technology, Information and Media