Job Description

3D Bio-tissues Ltd. is a pioneering biotechnology company at the forefront of creating advanced, animal-component-free tissue culture and biomanufacturing solutions. We are dedicated to accelerating research and applied biology across biomedical, alternative protein and tissue engineering by eliminating the variability and ethical or regulatory concerns associated with animal-derived materials or small molecules.

Our Products and Markets

Our core products,

CityMix

and

CytoBoost

, are high-performance, serum-free media supplements, derived from inert macromolecules, designed to dramatically improve the growth and function of cells in culture.

CityMix

is our latest innovation, engineered to enhance cell viability and proliferation in biomanufacturing processes, specifically targeting the rapidly growing cultivated meat and sustainable materials industries that require reliable, large-scale, animal-free nutrient sources.

CytoBoost

offers a defined, robust, and scalable platform for immortalised, primary and stem cell cultures, catering to the needs of academic research labs, pharmaceutical companies, and contract research organizations (CROs) focused on drug discovery, toxicology testing, and regenerative medicine.
We operate globally, serving dynamic markets where the demand for ethical, consistent, and high-quality cell culture reagents is escalating.

The Role

We are seeking a highly motivated, independent, and commercially driven Business Development Manager to take full ownership of our commercial function. This is a critical leadership role for an individual who is ready to build and scale the sales pipeline, manage key accounts, and drive the adoption of our CityMix and CytoBoost products worldwide.

Key Responsibilities

Commercial Ownership

Lead and manage the full commercial function--prospecting, nurturing, closing, and retaining customers.

Functional Leadership

Build and develop the sales team in line with goals and targets.

Key Account Management

Develop and manage strong relationships with strategic customers, acting as their primary point of contact.

Long Sales Cycle Leadership

Drive complex, long-term sales processes with structure, persistence, and strategic insight.

Customer Interaction

Deliver high-impact engagement across face-to-face meetings, online calls, telesales, and email correspondence.

Technical Guidance

Provide customers with informed technical support, troubleshooting, and product application advice.

Pipeline & Forecasting

Build, manage, and report on the commercial pipeline with accurate forecasting and operational planning.

CRM Ownership

Maintain high-quality data and reporting within HubSpot (experience preferred).

Contract Negotiation

Support and lead elements of negotiating and finalising commercial agreements.

Commercial Strategy & Execution

Develop new commercial ideas, campaigns, and directions--then execute them independently.

Cross-Team Collaboration

Work closely with internal teams (technical, operations, marketing) to ensure alignment and support for customer needs.

Social Media Engagement

Plan the creation of regular commercial-facing content on social media with support from in-house social media team.

Adaptability & Initiative

Take ownership of new tasks, handle changing priorities, and consistently go above and beyond.

About You

Proven ownership of long, technical B2B sales cycles.

(Essential)

Strong experience with key account management.

(Essential)

Sufficiently technical fluency to sell credibly into cell culture users.

(Essential)

Experience using HubSpot or similar CRM tools .

(Essential)

Ability to operate independently in a small company.

(Essential)

Experience in technical or scientific sales, ideally as the primary or lead salesperson in a team. Confident communicator in person, online, and over the phone. Skilled in telesales and proactive outreach. Excellent written communication for professional and persuasive email correspondence. Ability to provide technical support and understand product applications.
*

Understanding of contract negotiation principles. Creative, commercially minded thinker who can define and execute new ideas. Highly independent, self-directed, and comfortable taking full ownership of a commercial function. Flexible, resourceful, and willing to go above and beyond. Interest in supporting social media and marketing activities. Experience or demonstrable capability to apply agentic AI in developing and executing a targeted sales and marketing plan
How to Apply

Please send your CV and a cover letter detailing your relevant experience to Indeed.

Application Deadline:

14 January 2026

Equal Opportunities & Flexible Working

We are an equal opportunities employer and welcome applications from all suitably qualified candidates regardless of background, identity, or personal circumstances.

We are happy to consider

part-time, flexible, or alternative working arrangements

, and encourage applicants to discuss their needs as part of the application process.

Job Types: Full-time, Part-time

Pay: 35,000.00-50,000.00 per year

Benefits:

Company pension
Ability to commute/relocate:

Newcastle upon Tyne NE4 5BX: reliably commute or plan to relocate before starting work (preferred)
Experience:

Sales in Cell Culture Industry: 2 years (preferred)
Work authorisation:

United Kingdom (required)
Work Location: In person