Jellyfish (jellyfish.com)

HQ
London
Total Offices: 29
2,204 Total Employees
Year Founded: 2005

Jobs at Jellyfish (jellyfish.com)

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YesterdaySaved
Hybrid
London, Greater London, England, GBR
Marketing Tech
Develops bold, culturally relevant creative ideas across social, advertising, campaigns, activations, experiential, digital, and emerging platforms. The role combines conceptual advertising expertise with deep social fluency, hands-on creative making, client presentations, mentoring, and production collaboration. The successful candidate will use generative AI and emerging technologies to prototype and elevate ideas, understand platform-specific behaviors, and create award-winning work that drives conversation, participation, and cultural relevance.
2 Days AgoSaved
Hybrid
London, Greater London, England, GBR
Marketing Tech
Leads client relationships and serves as the primary contact for B2B clients. Develops and oversees organic and paid social strategies, content plans, campaigns, and production across major platforms. Collaborates with creative, media, analytics, and production teams, translates performance data into recommendations, manages stakeholder relationships, and guides a small team while ensuring campaigns meet client objectives and KPIs.
2 Days AgoSaved
Hybrid
2 Locations
Marketing Tech
Lead data science solutions for paid media and investment analytics. Analyze data, identify trends, and provide actionable recommendations. Develop predictive models and advance incrementality testing, media mix modeling, causal impact studies, attribution, and data clean room applications. Collaborate with platform partners, present complex findings, improve campaign performance, and document scalable analytics processes.
2 Days AgoSaved
Hybrid
3 Locations
Marketing Tech
Lead data science solutions for paid media and investment analytics. Analyze data, develop predictive models, and apply incrementality testing, media mix modeling, causal impact studies, and attribution methods to improve campaign performance. Collaborate with platform partners, build scalable analytical solutions using open-source and internal code, communicate insights and recommendations, and document processes for organizational replication.
3 Days AgoSaved
Hybrid
3 Locations
Marketing Tech
Manage and optimize Amazon and other retail media campaigns, including sponsored advertising and DSP activations. Responsibilities include campaign builds, budget delivery, pacing, optimization, reporting, client communications, performance insights, and collaboration with internal teams. The role also requires monitoring retail media trends and using platforms such as Amazon Ad Console, SKAI, and Pacvue.
8 Days AgoSaved
Hybrid
New York, NY, USA
Marketing Tech
Leads high-level client relationships, strategies, retention, revenue growth, and account expansion across a broad portfolio. Oversees client escalations, cross-functional alignment, product activation, process improvements, and capability workstreams. Builds C-suite relationships, manages financial accountability, and mentors senior leaders. Responsible for performance reviews, team development, and identifying growth opportunities. Requires extensive agency client-management experience and proven leadership of teams and campaigns.
Marketing Tech
Leads end-to-end operations for a global training and readiness program supporting over 1,000 participants. Responsibilities include onboarding, governance, content refreshes, request prioritization, stakeholder forums, metrics analysis, risk management, vendor oversight, documentation, and continuous improvement through AI and automation. The role operates independently across a global, matrixed organization and partners with senior learning leadership.
Marketing Tech
Develops and maintains digital measurement solutions for clients, including GA4 implementations, event and conversion tracking, GTM tagging, data layers, Consent Mode, Enhanced Conversions, and enhanced e-commerce tracking. Translates business requirements into measurement frameworks, dashboards, and actionable insights while troubleshooting data quality issues, analyzing trends, and communicating recommendations to drive client outcomes.
14 Days AgoSaved
Hybrid
2 Locations
Marketing Tech
Supports marketing analytics inquiries and client measurement initiatives across dashboards, testing, paid media analysis, and data integration. Responsibilities include quality assurance, data manipulation, research, analysis development, pitch and client support, cross-functional collaboration, workload tracking, project handoffs, and capability growth. The role works remotely on EST hours and contributes to long-term measurement frameworks and actionable analytics solutions.
15 Days AgoSaved
Hybrid
São Paulo, BRA
Marketing Tech
Serves as the primary client contact for digital marketing data, planning, and business intelligence. Builds ETL processes, dashboards, measurement frameworks, and testing plans; analyzes campaign effectiveness across media channels; translates client needs into technical solutions; presents actionable insights; improves workflows and product offerings; and mentors junior team members.
16 Days AgoSaved
Hybrid
New York, NY, USA
Marketing Tech
Leads advanced SEO strategies and technical SEO programs for enterprise clients. Responsibilities include technical audits, site architecture and crawlability improvements, GEO and AEO optimization, link-building, client collaboration, SEO roadmaps, reporting automation using data pipelines and cloud technology, trend monitoring, project leadership, and mentoring junior SEO professionals.
23 Days AgoSaved
Hybrid
Paris, Île-de-France, FRA
Marketing Tech
Develop and implement conversion rate and experience optimisation strategies for a luxury-goods client. Lead client meetings, create optimisation roadmaps, conduct user-journey audits and experimentation, analyse quantitative and qualitative data, define reporting requirements, activate cross-channel campaigns, and mentor junior team members.
23 Days AgoSaved
Hybrid
New York, NY, USA
Marketing Tech
Leads AI-forward art direction and creative vision for integrated advertising campaigns across film, digital, social, and emerging media. Develops concepts, mock-ups, storyboards, treatments, and mood boards; guides designers, editors, AI film directors, and motion designers through execution. Presents and defends ideas to clients, ensures creative quality and brand alignment, and collaborates with teams across the US, UK, and Mexico. Uses generative AI and traditional production techniques to create high-impact campaign visuals.
23 Days AgoSaved
Hybrid
New York, NY, USA
Marketing Tech
Lead new-business growth for Jellyfish’s mid-market segment by prospecting, building self-sourced pipelines, engaging senior decision-makers, and closing net-new agency clients. Develop integrated creative, media, and data solutions with internal specialists, manage proposals and negotiations, maintain accurate Salesforce records, forecast revenue, refine go-to-market tactics, and mentor junior Growth team members.
Marketing Tech
Leads end-to-end production for high-volume social media retainers in the German market. Responsibilities include client and stakeholder management, agile workflow coordination, budgeting and financial oversight, German-language quality control, localized campaign delivery, resourcing, mentorship, and production of fast-turnaround social and video assets.
29 Days AgoSaved
Hybrid
Sydney, New South Wales, AUS
Marketing Tech
Lead the Analytics team within the Martech department, setting enterprise measurement strategy and advising senior marketing clients. Own methodologies spanning marketing mix modeling, incrementality, geo-testing, causal analysis, privacy, and server-side architecture. Establish AI and data-security frameworks, support commercial growth, oversee technical escalations, and guide pitches and partnerships. Manage team allocation, quality standards, mentoring, skills development, and career progression while maintaining technical credibility and client relationships.
One Month AgoSaved
Hybrid
São Paulo, BRA
Marketing Tech
Support senior strategists by analyzing quantitative and qualitative data to generate brand insights, draft strategic briefs and presentations, contribute to pitches and RFPs, and apply modern tools (including AI) to solve client challenges while collaborating across creative, media, and data teams.
One Month AgoSaved
Hybrid
New York, NY, USA
Marketing Tech
The SEO Manager develops and executes data-driven organic search strategies for clients. Responsibilities include technical SEO audits, site architecture and performance optimization, content and keyword strategy, link building, competitor and market analysis, reporting, and client presentations. The role collaborates with paid media, social, content, creative, development, UX, client services, and project management teams to integrate SEO into broader campaigns and deliver measurable traffic, visibility, and ROI improvements.
One Month AgoSaved
Hybrid
2 Locations
Marketing Tech
Manage and optimize paid social campaigns across Meta, LinkedIn, TikTok, Pinterest, Reddit, and other platforms. Responsibilities include campaign setup, pacing, quality assurance, reporting, insights, testing, media planning, client relationship management, revenue growth, process improvement, issue escalation, and best-practice development. The role also supports team leadership and integrates paid social with broader media planning efforts.
One Month AgoSaved
Hybrid
Mexico City, Cuauhtémoc, Mexico City, MEX
Marketing Tech
Create and adapt high-quality static, motion, digital, and social media content for global brands. Localize assets across markets while maintaining brand consistency, platform compatibility, and client requirements. Collaborate with creative teams, project managers, and clients on briefs, reviews, feedback, and revisions. Use Figma, Adobe tools, Blender, and AI tools such as Pencil Pro to improve production workflows and deliver compelling, trend-aware visual content.