Seifermann is an award-winning international architecture, interior design, and project management practice based in Central London, blending innovative design, heritage architecture, and client strategy for a global clientele. Our portfolio spans prestigious commercial workplaces (Rolls Royce, Lufthansa Lounge Heathrow), cultural and civic heritage refurbishments (German Ambassador's Residence, London), high-end residential and cultural environments (Film School, Berlin), and bespoke event environments and interiors across Europe and beyond. We collaborate with blue-chip corporate clients, property developers, investment firms, family offices, private clients, and institutions that value design excellence, rigorous project delivery, and strategic client advice. This is an exciting growth phase for the firm as we strengthen our commercial development efforts and expand across the UK and international markets, including Singapore. As Business Development Manager, you will be responsible for driving revenue growth, securing new commissions, and owning strategic client engagement across our core market segments. You will work directly with the Directors, leading the commercial development of the practice's services. You will be instrumental in: Identifying, engaging and converting high-value prospects Building long-term relationships across corporate, commercial, property, and high-net-worth private sectors Developing targeted proposals and pitches Aligning Seifermann's creative capability with client strategic needs Key Responsibilities Strategic Growth & Market Leadership Build and execute a structured business development strategy aligned with the firm's long-term goals. Prioritise high-impact sectors: corporate HQs, workplace design, flagship retail and hospitality projects, heritage and cultural institutions, schools and private residential developments. Client Acquisition & Relationship Management Target and secure new clients including international corporations, developers, private equity investors, luxury retail brands, property owners, and cultural institutions. Act as a trusted advisor through the full sales cycle: lead generation → qualification → proposal → negotiation → close. Proposals, Pitches & Commercial Intelligence Lead proposal development, pitch decks, fee proposals and commercial terms. Develop market insights, competitor analysis, and pipeline forecasts. Collaborate with design leadership to tailor offers that resonate with client priorities. CRM & Pipeline Management Maintain and report on sales pipeline activity using CRM systems. Provide regular forecasting and performance reporting to senior leadership. Candidate Requirements Essential Proven track record in business development / sales in architecture, design, workplace, property or the built-environment sector, with experience selling to corporate clients, developers, investors, or high-net-worth private clients. Experience managing high-value project sales cycles (£500K fees). Established network and ability to influence senior decision-makers. Strong commercial acumen, negotiation skills, and understanding of project economics. Excellent communication, presentation and relationship-building skills. Desirable Experience in architecture, interior design, workplace consultancy, luxury retail environments or property development. Understanding of creative services contracts and fee structures. CRM and pipeline management proficiency. Why This Role is Attractive Prestigious Client Base & Projects - You will represent a brand delivering high-profile landmark projects - from international headquarters (JAB Holding Company) to flagship venues (Heathrow Business Lounge, Embassies, heritage refurbishments). Strong Growth Trajectory - The practice is expanding domestically and internationally, offering genuine scope for commercial impact and progression. Collaborative Creative Environment - Work closely with directors and design leaders, shaping how design ambition translates into commercial success. Rewarding Package - Competitive base salary with performance-linked earnings (OTE £100K) aligned to revenue achievement. To apply please attach your CV to the link provided.