Senior Software Engineer - HubSpot Contract
other jobs Harnham - Data & Analytics Recruitment
Added before 2 Days
- England,London,City of London
- Full Time, Contract
- £575 - £590 per day
Job Description:
We’re partnering with a fast-growing sports/entertainment business to hire a Senior Backend Engineer with hands-on experience in HubSpot and complex backend systems. This is a 6-month contract, outside IR35, with potential for extension or permanent conversion.
The Role You’ll take full ownership of the Commercial Data Manager (CDM) platform and the HubSpot ecosystem, bringing previously external-managed systems fully in-house. This role combines backend development, integrations, and stakeholder collaboration, giving you real technical leadership and system ownership from day one.
Key Responsibilities:
* Lead the CDM platform (70%) and HubSpot system (30%)
* Take over HubSpot maintenance, expansion, and integrations
* Collaborate closely with commercial stakeholders to implement new fields/features
* Mentor engineers and shape team practices
* Drive architecture and integration decisions across multiple services
Team Environment:
* Distributed across UK & Poland
* Key stakeholders: Architect, Engineering leadership, Delivery, Commercial team
* Hybrid environment with flexible UK/EU remote options; Holborn office optional
Required Skills & Experience Must-have:
* Node.js / TypeScript / JavaScript in production
* Experience with large, complex backend systems
* Cloud experience (preferably AWS; GCP/Azure also fine)
* System design & architecture experience
* Integration-heavy environments
* Previous HubSpot experience essential
Priority Skills:
* Mentorship, leadership, and architecture thinking
* Collaboration with product and engineering stakeholders
* Scaling complex backend systems
Nice-to-have:
* DevOps/SRE awareness
* High-scale platforms (gaming, sports, fintech, marketplaces)
* Experience with complex workflows or multi-service integrations
Experience Level:
* 6-8+ years, hands-on senior engineer
Soft Skills & Culture Fit * Strong communication and collaboration skills
* Leadership mindset, proactive and solution-focused
* Can explain technical decisions clearly
* Commercial awareness and creative problem solving
Avoid:
* Strong technically but poor communication
* Purely task-focused, non-proactive contractors
Contract & Logistics * Length: 6 months (potential to extend or perm conversion)
* Rate: £575/day (Outside IR35)
* Start: ASAP
* Remote UK/EU (Holborn optional)
The Role You’ll take full ownership of the Commercial Data Manager (CDM) platform and the HubSpot ecosystem, bringing previously external-managed systems fully in-house. This role combines backend development, integrations, and stakeholder collaboration, giving you real technical leadership and system ownership from day one.
Key Responsibilities:
* Lead the CDM platform (70%) and HubSpot system (30%)
* Take over HubSpot maintenance, expansion, and integrations
* Collaborate closely with commercial stakeholders to implement new fields/features
* Mentor engineers and shape team practices
* Drive architecture and integration decisions across multiple services
Team Environment:
* Distributed across UK & Poland
* Key stakeholders: Architect, Engineering leadership, Delivery, Commercial team
* Hybrid environment with flexible UK/EU remote options; Holborn office optional
Required Skills & Experience Must-have:
* Node.js / TypeScript / JavaScript in production
* Experience with large, complex backend systems
* Cloud experience (preferably AWS; GCP/Azure also fine)
* System design & architecture experience
* Integration-heavy environments
* Previous HubSpot experience essential
Priority Skills:
* Mentorship, leadership, and architecture thinking
* Collaboration with product and engineering stakeholders
* Scaling complex backend systems
Nice-to-have:
* DevOps/SRE awareness
* High-scale platforms (gaming, sports, fintech, marketplaces)
* Experience with complex workflows or multi-service integrations
Experience Level:
* 6-8+ years, hands-on senior engineer
Soft Skills & Culture Fit * Strong communication and collaboration skills
* Leadership mindset, proactive and solution-focused
* Can explain technical decisions clearly
* Commercial awareness and creative problem solving
Avoid:
* Strong technically but poor communication
* Purely task-focused, non-proactive contractors
Contract & Logistics * Length: 6 months (potential to extend or perm conversion)
* Rate: £575/day (Outside IR35)
* Start: ASAP
* Remote UK/EU (Holborn optional)
Job number 3418560
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Company Details:
Harnham - Data & Analytics Recruitment
Company size: 250–499 employees
Industry: Recruitment Consultancy
Harnham are the global leaders in Data & Analytics recruitment.Harnham provides specialist Data & Analytics recruitment staffing services and talent s...