About the role
We are recruiting for a growing end-user business in County Durham that has recently completed a NetSuite implementation and is now building out its technical capability for the long term. As Senior NetSuite Developer / Technical Architect you will act as design authority for customisation and integration, owning the architecture of complex work, leading on integrations with Celigo, and accelerating the wider development team's capability through mentoring and code review. This is a senior individual contributor role positioned parallel to the IT Manager on the technical track, with genuine influence over the platform's technical direction.
With a clear Phase 2 roadmap ahead and a strong existing team to work with, this is an opportunity to shape the long-term technical estate rather than join a green-field rebuild. If you're a senior NetSuite technologist who gets satisfaction from levelling up a team and acting as the go-to escalation point, apply today.
Key Responsibilities
- Act as design authority for NetSuite customisation and integration: architectural decisions, technical standards, code review and design sign-off on non-trivial work
- Lead the design and build of the most complex SuiteScript work (Map/Reduce at scale, performance-critical Suitelets and RESTlets, advanced workflow logic) and act as escalation point for technical problems
- Own the integration architecture end-to-end using Celigo integrator.io: flow design patterns, error handling and recovery, monitoring strategy, onboarding of new endpoints
- Establish and maintain platform engineering disciplines: SuiteCloud Development Framework, source control, sandbox and release management, deployment pipelines, governance limit monitoring
- Mentor and upskill the existing development team through pairing, structured knowledge transfer, code review and technical coaching
- Partner with the IT Manager on platform roadmap, technical debt management and Phase 2 manufacturing technical design
What We're Looking For
- Substantial hands-on NetSuite SuiteScript development experience (4+ years, all major script types, demonstrable production track record)
- Deep working experience of Celigo integrator.io: flow architecture, error handling at scale, complex transformations
- Demonstrable design and architectural responsibility on a NetSuite implementation or estate — not solely build-to-spec experience
- Strong NetSuite data model fluency: saved searches, custom records, scripted vs. workflow trade-offs, governance and performance considerations
- Experience operating as a senior individual contributor: code review, mentoring, technical decision-making
- Comfortable as senior technical voice without being the line manager — a mentoring mindset and collaborative approach with both the IT Manager and the existing development team
- Pragmatic on engineering rigour, applying standards proportionately to the business context
- NetSuite SuiteCloud Developer II or Administrator certification would be an advantage but is not essential
- Manufacturing ERP functionality exposure (inventory, work orders, BOMs) or Git-based source control and CI/CD for NetSuite (Salto or equivalent) would be a plus
What's On Offer
- Salary from £60,000 depending on experience
- Hybrid working: minimum 2 days on-site per weekwith free parking
- Pension scheme and life assurance (6x salary)
- Holiday purchase scheme, holiday loyalty reward days, cycle to work scheme and tech scheme
- Training and career development with genuine design authority and influence over long-term technical direction
- Employee assistance programme and employee discounts
How to Apply
Please apply asap with your CV to be considered for this position. You can also get in touch with the team on enq@henleymorgan.com or 0207 096 0211.