[Senior Software Engineer @Arqit]

View Job Opportunity

Senior Software Engineer @Arqit

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Apply: https://careers.arqit.uk/en/postings/f7226c24-ab38-4cc1-a687-c341866c77b4

Arqit is a global cybersecurity company delivering quantum-safe encryption to secure data and communications for enterprises, governments, and critical national infrastructure (CNI). Powered by its advanced symmetric key cryptography, Arqit offers scalable encryption that is resilient to quantum threats, ensuring robust data protection across sectors like telecoms, defence, and finance. 

Arqit has recently welcomed onboard the talented team from Ampliphae: this brings together Ampliphae’s industry-leading Encryption Intelligence products with Arqit’s quantum-encryption technology and global reach, delivering a comprehensive proposition to identify and mitigate cyber risk exposure from both current and quantum threats.

Our combined company now has a new opportunity for a self-motivated and enthusiastic Senior Software Engineer to join our friendly team based in Belfast. We can offer you fun and interesting work in both cloud and on-prem cybersecurity, and we have a great culture that gives you the opportunity to innovate, take ownership, and scale new heights in your career. 

On offer is a hybrid/remote way of working and the challenge of being involved in an innovative and complex environment where no two days are the same.

What you'll be doing

·       Developing software for our Encryption Intelligence technology, working under the guidance of our software architects and other senior colleagues.

·       Transforming architectural models into component designs ready to be incrementally developed, tested and deployed.

·       Collaborating closely with our team of software, automation and DevOps engineers to implement, review, test and deploy full-stack software changes.

·       Working extensively with Python, you will have the opportunity to train on Rust and AngularJS

·       Analysing the metrics of your deployment changes, ensuring high resiliency and performance is maintained, resolving issues if they arise.

·       Fixing issues found internally and by our customers.

·       Actively participating in Agile development activities and rituals, supporting the growth of the team and its members. 

·       Being open to receiving feedback and being willing to offer constructive feedback and support to others.

·       Working closely with the Product Management team to help further refine requirements.

What we're looking for

You're an intelligent innovator who thinks outside of the box with a record of delivering great results against the most complex of problems. You take ownership without being asked to, work with autonomy and you're a team player with a relentless desire to help your team to succeed. You're open, honest and respectful, appreciating the value of diversity, and you enjoy the challenge of working in an ambiguous environment where no two days are the same. You recognise the need to work at pace but are also laser focussed to ensure that what's delivered delights the end-user. 

We would like you to have most of the following skills:

·     Significant commercial experience of developing complex enterprise software and services

·       Demonstrable experience in building horizontally-scalable mission-critical enterprise software and services, preferably in a startup environment

·       Experience of cloud service development (public/hybrid/private cloud PaaS or SaaS) 

·       Extensive experience of Python programming and best practice

·       Demonstrable passion for software development through self-learning, personal projects, competitions etc.

·       Experience of triage, RCA and fix for software issues within a distributed system

·       Competence in multiple programming languages

·       Experience of database development (SQL and NoSQL) 

·       Experience with design patterns, refactoring, OO design and related areas

·       Strong analytical, problem-solving and organizational skills

·       Demonstrate accountability for results whilst working with high autonomy

·       The right to live and work in the UK without restriction

Desirable (but not essential!):
·       Experience working in cyber security

·       Experience in a start-up/scale-up

·       Agile or Kanban experience

·       Experience of consuming cloud services from the big 3 providers Cloud platforms (e.g. Azure, AWS, Google)

·       Both Linux and Windows development experience

·       Rust, AngularJS, C++

·       CI/CD deployment experience (AzureDevops, Helm, Flux)

·       Experience of mentoring and training junior members of staff

Benefits

• 25 days paid holiday

• 8 bank holidays

• Pension

• Private Medical Insurance

• Life Insurance

• Income Protection

• Employee Assistance Programme

• Coaching

• Parental Leave

• Personal Travel Insurance

• Subsidised Season Ticket Loan

• RSU Equity Package

• Bonus Scheme

• Ride to Work Scheme

• Benefit Hub

About Arqit

Arqit is a global cybersecurity company delivering quantum-safe encryption to secure data and communications for enterprises, governments, and critical national infrastructure (CNI). Powered by its advanced symmetric key cryptography, Arqit offers scalable encryption that is resilient to quantum threats, ensuring robust data protection across sectors like telecoms, defence, and finance. 
Arqit has recently welcomed onboard the talented team from Ampliphae: this brings together Ampliphae’s industry-leading Encryption Intelligence products with Arqit’s quantum-encryption technology and global reach, delivering a comprehensive proposition to identify and mitigate cyber risk exposure from both current and quantum threats.

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• Author
  Chriscia Pereira, On 13/06/25
• Category
  Development Roles
• Type
  Full Time
• Salary
  Not Provided
• Work from home
  No
• Weekly Working Hours
  Not Provided
• Positions
  Not Provided
• Working Location
  London   [ View map ]