Ilir Sela started Slice with the belief that local pizzerias deserve all of the advantages of major franchises without compromising their independence. Starting with his family’s pizzerias, we now empower over tens of thousands of restaurants with the technology, services, and collective power that owners need to better serve their digitally minded customers and build lasting businesses. We’re growing and adding more talent to help fulfil this valuable mission. That’s where you come in.

This position is open to applicants across all of the UK on a remote basis, with the physical office located in Belfast, Northern Ireland.

The Role

By applying your Mobile experience, and software development skills, you will build high quality and intuitive experiences for customer-facing and business-facing apps. You will collaborate with other developers to build scalable solutions that make it easy to build high quality products, and you will work alongside designers and other stakeholders to build exciting new features and refine existing experiences. You will integrate with our custom built in-shop embedded projects. Knowledge of more than one mobile stack as well as an interest in embedded systems is a bonus. 

For this role, we are focusing on hiring at the Senior level, which requires broad professional mobile development experience and a strong track record of leading complex initiatives and delivering broad impact. We recognise that job titles and responsibilities vary across companies; throughout our interview process we assess each candidate’s experience, technical depth and overall impact to ensure alignment with the appropriate level at Slice.

The Team

You will be part of our Devices development team that is responsible for all of our customer-facing and business-facing mobile and embedded products. Think pizza ordering apps, Point-of-sale and Kiosk’s to name a few. We believe that consolidating our skills on platform-specific teams leads to a better development environment where you can collaborate, learn from and grow alongside other device experts. Our team brings together talented developers from across the US, UK, and Eastern Europe, each contributing unique perspectives and expertise to drive success.

The Winning Recipe

We’re looking for creative, entrepreneurial developers who are excited to build world-class products for small businesses and their customers. 

The core competencies this role calls for:

• Proven experience developing iOS apps with Swift, SwiftUI, Combine and Core Data.
• Hands-on experience designing, developing and maintaining Android applications with Kotlin & Jetpack Compose is required.
• Technical leadership and strategic impact: able to guide complex projects end-to-end, influence architecture decisions and lead peers.
• Experience with Python, particularly in developing web services, is a plus.
• Embedded systems experience is highly desirable.
• Able to clearly express opinions on product design, while respecting the thoughts and opinions of their peers.
• Adaptable, proactive and results-oriented, capable of delivering solutions efficiently and meeting tight deadlines.
• Proven ability to communicate and collaborate effectively with engineers across all platforms and non-engineering stakeholders alike.
• Comfortable working remotely and collaborating asynchronously with teammates in different timezones and from different backgrounds.

The Extras

Working at Slice comes with a comprehensive set of benefits, but here are some of the unexpected highlights:

• Access to healthcare plans
• Flexible working hours
• Generous time off policies
• Employee wellbeing allowance
• Market leading maternity and paternity schemes

The Hiring Process

Here’s what you can expect from our hiring process if your candidacy progresses smoothly. We move quickly and strive for a fast turnaround from the final interview to the offer.

• Application
• 30-minute introductory meeting
• 90 minute Live Coding Interview & 60 minute Technical Interview
• 30-minute Hiring Manager meeting
• Offer!

Pizza brings people together. Slice is no different. We’re an Equal Opportunity Employer and embrace a diversity of backgrounds, cultures, and perspectives. We do not discriminate on the basis of race, colour, gender, sexual orientation, gender identity or expression, religion, disability, national origin, protected veteran status, age, or any other status protected by applicable national, federal, state, or local law. We are also proud members of the Diversity Mark NI initiative as a Bronze Member.

Privacy Notice Statement of Acknowledgment

When you apply for a job on this site, the personal data contained in your application will be collected by Slice. Slice is keeping your data safe and secure. Once we have received your personal data, we put in place reasonable and appropriate measures and controls to prevent any accidental or unlawful destruction, loss, alteration, or unauthorised access. If selected, we will process your personal data for hiring /employment processes, as well as our legal obligations.

If you are not selected for the job position and you have given consent on the question below (by selecting "Give consent") we will store and process your personal data and submitted documents (CV) to consider eligibility for employment up to 365 days (one year). You have the right to withdraw your previously given consent for storing your personal data and CV in the Slice database considering eligibility for employment for a year. You have the right to withdraw your consent at any time.

For additional information and / or exercise of your rights to the protection of personal data, you can contact our Data Protection Officer, e-mail: privacy@slice.com

Chief Information Security Officer (CISO), Belfast

The Role
We are seeking a strategic and hands-on Chief Information Security Officer (CISO) to lead and evolve the security function at TRG Screen, a global provider of market data and technology cost management solutions serving leading financial institutions including banks, asset managers, and hedge funds. The role spans both internal security — corporate IT policies, controls, and a remote workforce across the US, EU, UK, and India — and external security, protecting the products and solutions we deliver to clients. Reporting to the CTO and working closely with the Head of IT/Operations, the CISO will operate across a complex infrastructure encompassing AWS, Azure, and on-premises data centres.

This is a high-impact role with genuine ownership — you will set the security agenda for a growing global business, with the mandate and senior leadership backing to build the function on your own terms. The timing is significant: we are actively embedding AI into our products and operations, making this an opportunity to define how we approach AI security from the ground up, in a sector where data protection and client trust are paramount.

Key Responsibilities

• Security Strategy & Governance

• Define and execute the company’s information security strategy, roadmap, policies, and standards
• Define and enforce internal IT security policies, covering endpoint security, access management, and controls suited to a remote, globally distributed workforce
• Maintain and build upon our existing certifications (ISO 27001, SOC 2 Type II), and drive expansion of SOC 2 coverage across our full product portfolio
• Ensure compliance with GDPR and applicable data protection regulations across our EU and global client base, and support the organisation’s future pathway toward ISO 42001 for AI governance

• Application & Product Security

• Partner with Engineering to embed security into the software development lifecycle (SDLC)
• Provide guidance on secure architecture and development planning
• Oversee vulnerability management and remediation efforts
• Own the external security posture of our client-facing products and solutions, ensuring security is embedded from design through to deployment

• AI Security

• Define and implement a framework for securing AI-powered features and capabilities embedded within our products, including the security of AI agents, models, and associated infrastructure
• Govern the safe and compliant use of AI tools internally, including copilots and AI agents used by our workforce

• Client & Operational Security

• Oversee security aspects of client support operations, ensuring strong controls and responsiveness
• Act as a key escalation point for security-related client matters
• Support customer audits, security questionnaires, and due diligence processes

• Risk Management & Incident Response

• Identify, assess, and manage security risks across the business
• Lead incident response planning and execution
• Continuously improve detection and response capabilities

• Leadership & Collaboration

• Act as a trusted advisor to the CTO and broader executive leadership on security risks, strategy, and emerging threats
• Work in close partnership with the Head of IT/Operations, and collaborate across Product, Engineering, and Client teams globally to align security priorities with business objectives
• Build and scale security awareness across the organisation, including a remote and globally distributed workforce
• Grow and shape the security function over time, with the opportunity to build out direct reports as the function matures

What We’re Looking For

• 7–12 years of experience in information security, with demonstrated senior leadership (e.g., CISO, Director, or Head of Security) within a SaaS or technology environment
• Strong understanding of application security and secure software development
• Strong working knowledge of compliance frameworks including ISO 27001 and SOC 2, with hands-on experience managing or achieving these certifications; solid understanding of GDPR compliance across multiple jurisdictions
• Strong communication skills with the ability to engage both technical and non-technical stakeholders
• Experience securing complex, multi-cloud environments (AWS and Azure) alongside on-premises data centre infrastructure
• Awareness of AI security practices and risks, including securing AI-powered product features and governing internal AI tool usage
• Based in or with easy access to the US East Coast or UK/Ireland, comfortable leading remote teams across the US, EU, UK, and India, and willing to travel periodically to our offices in New York, London, or Belfast