Senior Full Stack Engineer

Summary
The Senior Full Stack Engineer designs, builds and ships software across Learnosity's Build product, our cloud-based API toolkit that educational companies use to create interactive and accessible assessment experiences at scale.
This role sits within Technology - Build and works across the full stack: JavaScript, React and CSS on the front end, and PHP, Python, Postgres/MySQL, Elasticsearch and AWS on the back end. You will own work from early design through to release, working closely with product, design and senior leadership to turn roadmap goals into software customers use.
This role helps the team ship faster without lowering quality. You will lead complex projects end to end, raise the standard of design and code through review and mentoring, and use AI tools to speed up delivery.
Key Responsibilities
Own the design and delivery of maintainable, well-engineered software across the Build product, balancing immediate needs with long-term technical health
Lead task planning, estimation and scheduling, and keep documentation current throughout
Translate product and business goals into clear engineering solutions, proving out complex functionality with real data before release
Find the root cause of complex issues and deliver permanent fixes, spotting risks before they become problems
Mentor less experienced engineers and raise the quality of design and delivery across the team
Work with engineering, product and design to align on shared goals and keep delivery on track
Use AI tools and introduce new technologies where they help the team deliver faster
Requirements
Skills and Experience
Required:
5+ years as a software engineer, with a track record of owning and delivering complex projects end to end
Strong JavaScript and ReactJS, including state management (e.g. Redux, Context API), component-based architecture, design systems, CSS and front end debugging
Strong PHP, ideally with Symfony and/or Doctrine, and Python in a backend or data-oriented context
Experience with relational, NoSQL and document-oriented databases and query design in high performance environments
Good knowledge of design patterns and back end architecture
Experience writing unit, integration and frontend tests, working with Docker, and giving strong code reviews
Experience mentoring engineers and working in agile teams
Clear verbal and written communication, adjusted to the audience
Nice to Have:
Commercial experience with AI tools and concepts
Experience or interest in API design
Experience with TDD
Experience setting up or configuring CI/CD pipelines
Experience with Node.js
B.Sc or M.Sc in Software Engineering, Computer Science or similar
Key Behaviours
Owns work from first idea to release and follows through on commitments
Brings clarity to complex or ambiguous problems, makes sound technical decisions and explains the trade-offs
Proves out complex functionality with real data and tunes it until the results hold up
Adapts quickly as priorities and tools change, and tries new approaches, including AI, to deliver faster
Shares knowledge openly and helps others succeed, in line with our value that our success is better shared
Picks the long-term fix over the quick patch when it matters
Success in this Role
In the first 6–12 months, success in this role would look like:
Owned and released at least one complex Build feature end to end, from design through to customers using it
Became a trusted reviewer and mentor for less experienced engineers in the team
Built strong working relationships with product, design and engineering leads on the Build roadmap
Found and permanently fixed the root cause of recurring issues in an area of the codebase you own
Introduced or improved a practice the team now relies on, such as AI-assisted development, testing or CI/CD
Benefits
Our Values
We are a values-driven company, and how we work matters as much as what we build:
We live to learn
We aim higher
We do the right thing
Our success is better shared
Benefits
Annual leave
Milestone leave
Paid sick leave
Generous parental leave
Health & dental insurance
Pension contributions
Learning & development support
Employee Assistance Program
Flexible work practices
Commuter benefits
Modern city-centre office
Location & Working Style
This role is based in our Dublin office. We value the creativity, collaboration and stronger connections that come from working together in person, and expect employees in this role to work from the office at least two days each week.
This role includes participation in a shared on call roster once onboarding and training are complete. The roster is shared across the global CloudOps team, with the current rotation typically requiring one week on call every four to six weeks to support production systems outside normal working hours.
Find out more about your career at Learnosity at learnosity.com/careers/
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Please only contact us if you are a candidate interested in applying for this role. You must have the right to live and work in Ireland to apply.

Work arrangement
No