Senior Full Stack Engineer Product & Engineering · Belfast ·

Kadence Limited; London; Remote; GBP 55,000 - 75,000; Full time

Job summary

A fast-scaling startup in London seeks a Software Engineer to build scalable SaaS applications using PHP and Symfony. You will work with a passionate team focusing on innovative solutions in a remote-first environment, offering excellent work-life balance, competitive salary, and generous vacation policy.

Benefits

5 weeks vacation per annum

Flexible work/life balance

Private healthcare

Company pension

Cycle2work scheme

Qualifications

• Proven experience building large-scale consumer web/mobile applications.
• Strong backend experience with PHP and Symfony.
• Strong frontend development experience with TypeScript (AngularJS preferred).
• Comfortable in an Agile/Scrum environment.

Responsibilities

• Build scalable SaaS applications using PHP and Symfony.
• Craft responsive frontend experiences using AngularJS and TypeScript.
• Develop new product features across web and mobile platforms.
• Collaborate with a cross-functional team on delivering features.

Skills

Collaboration

Agile development

Problem solving

Communication

Education

BSc in Computer Science or related field

Job description

The world of work is changing forever -not just where it happens, but how and why. People want flexibility, meaning, and connection.At Kadence, we’re building the operating system for hybrid work,helping organisations coordinate people, places, and projects so everyone can do their best work, wherever they are.

Our mission is to help every organisation unlock the full potential of its people through smarter coordination of workplaces, schedules, and teams. From intelligent space management and real-time workplace analytics, to seamless team coordination, AI assistants, and meaningful workplace events, Kadence helps companies create environments where work flows and people thrive.

Backed by world class investors and trusted by over 500 organisations, Kadence is growing fast. With established teams in Belfast, London, and Salt Lake City, we’re just getting started. If you’re excited by mission-driven impact, big ideas, and helping define the future of work - join us.

WHAT YOU'LL DO

• Build highly performant, scalable SaaS applications using PHP and Symfony.
• Craft beautiful and responsivefrontend experiences using AngularJS and Typescript.
• Develop new product features acrossweb and mobile platforms via Kadence's RESTful APIs.
• Collaborate closely with a cross-functional team including engineers, QA, data, infrastructure, product managers anddesigners to deliver high-impact features.
• Contribute to architectural decisions and help shape our technical direction.
• Write clean, secure, maintainable code with performance and usability in mind.
• Investigate and resolve technical issues through hands-ondebugging andresearch.
• Maintain and evolve automated tests to ensure product quality.
• Create and maintain internal technical documentation and share knowledge with the team.

WHAT YOU BRING

• Proven experience building large-scale consumer web/mobile applications and distributed systems.
• Strong backend experience (ideally withPHP andSymfony).
• Strong frontend development experience withTypeScript (AngularJS preferred) to create interactive user interfaces.
• Familiarity with distributed systems and modern cloud architecture.
• Passion for writing clean, maintainable code and continuously improving practices
• You must be comfortable with rapid development in a Agile /Scrum environment and iterating based on market and customer feedback.
• Excellent collaborator and communicator within your team and the wider company.
• BSc in a related field such as Computer Science, Computer Engineering, or other software/design discipline.

OUR TECH STACK

• Backend: PHP 8.2 / Symfony 7, REST, API Platform, NodeJS, Python, Rust.
• Frontend: TypeScript, Angular 19.
• Mobile: Android (Kotlin), iOS (Swift)
• Desktop: Cross platform desktop app built with Electron (TypeScript)
• Database: MySQL (Aurora DB), Redis (ElastiCache), MongoDB (AWS DocumentDB)
• Cloud & DevOps: AWS (20+ services), Kubernetes (EKS), Docker, Infrastructure as Code(CloudFormation, Terraform), CI/CD (Jenkins,GitHub Actions), Observability(AWS, Grafana)
• Development tools: GitHub, Jira, Notion, ChatGPT,Gemini,LangChain, AI-native IDE's (Cursor, JetBrains), LLM-powered internal tools.

WHAT WE OFFER YOU

• A front-row seat in a fast scaling, early stage startup.
• Working on cutting edge problems withbrand new technologies.
• Join a passionate and fun team that is quickly expanding in Belfast and beyond.
• Remote first with the ability to work from our sleek office in the heart Belfast city centre with access to a rooftop terrace, private member coffee lounge and regular wellbeing events.
• Regular company socials including an annual offsite to get to socialise with your colleagues in person.
  
• 5 weeks vacation per annum (plus public holidays), flexible work/life balance.
• Competitive salary and stock options.
• Private healthcare and company pension.
• Cycle2work scheme.

HEAR FROM OUR CEO