Freelance Tech Lead Job at Blu Selection (Barcelona)

Lead iOS (Swift) Engineer

An AI-driven revenue intelligence solution designed for hybrid sales teams, help...

Location

Ukraine

Salary:

Not provided

StartupSoft

Expiration Date

Until further notice

Requirements

Expert Swift and strong iOS fundamentals
production experience with SwiftUI
Proven track record in shipping and maintaining production mobile apps at scale (lead/principal/founding caliber)
Strong capability in iOS architecture (end-to-end thinking, best practices, maintainability)
Hands-on experience with real-time systems on mobile (WebSockets, Streaming/live data processing, Reliability patterns (reconnect strategies, state management, error recovery)
Strong engineering judgment: knows when pragmatism beats perfection without sacrificing quality
Ownership mindset: can execute independently, anticipate edge cases, and raise overall engineering standards
Clear communication, including the ability to explain why decisions are made and document standards
Comfortable leading and mentoring freelancers/developers with clarity and respect
“Leadership without ego” – raises the bar through standards, coaching, and hands-on example

Job Responsibility

Own and elevate the iOS app (take ownership of an existing iOS app in production, used by customers, professionalize the codebase, architecture, and development practices to reach “world-class” quality)
Act as Swift Tech Lead (set the technical direction for iOS: architecture decisions, code quality standards, performance, scalability, and best practices, define and document coding paradigms and structural standards for the mobile codebase)
Reliability and real-time connectivity (make the app resilient and reliable – especially around real-time workflows, WebSocket lifecycle (connect/reconnect, ping/pong, backgrounding, timeouts, streaming/ live data processing, robust error handling and recovery), ensure strong networking and authentication flows, including edge-case handling (e.g., 401/token refresh patterns)
Scale the product (drive the next phase of growth: stability, performance, UX polish, and feature expansion – fast execution with high craftsmanship, build foundations that allow adding engineers later without sacrificing quality)
Lead the mobile team (take over and lead an existing team of freelancers (and/or transition away from them as needed), providing technical guidance, clear direction and code review standard, hands-on leadership and delivery)
Expand to Android in future (iOS is the priority
help lay the groundwork for Android with a coherent mobile strategy, if experienced, contribute to Android/Kotlin direction or enable faster Android ramp-up)
Work closely with Product and CTO (collaborate closely with the product-driven CTO and product team to translate vision into high-quality mobile execution)

What we offer

Global collaboration opportunities
Core team membership
Equity and ownership potential
Premier workspaces
Competitive compensation package
Above average salary, benefits & medical insurance
Cutting-edge technology environment
Impactful project contributions
Collaborative company culture

Fulltime

Growth & B2B Marketing Specialist

ISG Spain seeks a Growth & B2B Marketing Specialist to drive inbound leads for o...

Location

Spain , Madrid

Salary:

Not provided

ISG Italy

Expiration Date

Until further notice

Requirements

2-4 years in growth marketing or B2B demand gen, preferably tech/recruitment
HubSpot/Marketo certified
Expertise in SEO, content strategy, LinkedIn Ads, email nurturing, and CRM (HubSpot/Salesforce)
Fluent Spanish/English
Proven B2B results (e.g., 20%+ lead growth)
Familiar with GDPR and Madrid market dynamics

Job Responsibility

Develop growth-focused content: Madrid tech hiring reports, case studies, and lead magnets like "2026 Tech Talent Trends"
Execute B2B channels: SEO/SEM for "tech recruiters Madrid," LinkedIn Ads targeting active hirers, and email automation via HubSpot
Optimize funnels: A/B test campaigns, run webinars on freelance-to-permanent strategies, and track MQL-to-SQL conversion with Google Analytics
Analyze and iterate: Monthly ROI reports, integrating inbound data with outbound pipeline

What we offer

Hybrid flexibility
Training budget
Competitive pay
Bonuses for qualified leads
Team networking events

New

Head of Creative Operations

The B-Hive is an in-house creative agency bringing to life the creative needs of...

Location

United Kingdom , Nottingham OR London

Salary:

Not provided

Boots

Expiration Date

Until further notice

Requirements

Senior creative, project or operations management experience or other appropriate delivery experience in a creative agency or business
Experience managing a production house or working in a production studio
Demonstrate strong experience of digital asset management & delivery
Proven ability to navigate multi-layered stakeholder landscapes, negotiating resources and driving cross-functional alignment
Strong ability to understand, map and plan processes, turning them into robust project plans
Likely to hold a degree, or equivalent apprenticeship or experience in a creative, business, process or similar field
Highly comfortable working in a fluid creative environment where plans change rapidly
Can bring teams (and peers) together around complex process planning, creating robust systems for all critical projects to build on

Job Responsibility

Works across all studio teams to own and operate our agency work management processes and procedures, through leading project & operations teams to deliver internal client needs as efficient and effectively as possible
Responsible for how the B-Hive manages all project briefs from regular BAU briefs through larger, more complex and/or critical projects
leads operations & project management best practice
Support with building collaborative bridges and communication frameworks needed for effective inter-agency ways of working
Be a champion for change, looking to evolve our operations through tech-driven innovation, ensuring we remain agile enough to pivot quickly
Leads teams of project managers, scheduling and traffic managers, quality & compliance and digital production & delivery specialists to deliver the required quality on time and to budget
Is focused on the outcomes the business needs to drive and negotiates resource time and commitment across multiple teams and projects according to that client need
Supports Head of Client Management with understanding and delivering evolving client needs
Supports Head of Creative with tools, process and freelance selection
Leads the B-Hive management of P&L and operational financial obligations, including overall staff utilization targets

What we offer

Boots Retirement Savings Plan
Discretionary annual bonus
Generous employee discounts
Enhanced maternity/paternity/adoption leave pay and gift card for anyone expecting or adopting a child
Flexible benefits scheme including option to buy additional holiday, discounted gym membership, life assurance, activity passes and much more
Access to free, 24/7 counselling and support through TELUS Health, our Employee Assistance Programme

Fulltime

Senior Brand Writer

Dropbox is looking for an accomplished brand writer. The role sits on our newly ...

Location

United States

Salary:

140800.00 - 214200.00 USD / Year

Dropbox

Expiration Date

Until further notice

Requirements

10+ years of brand and editorial copywriting experience across tech companies, creative agencies, or media environments
2+ years in an editorial role (e.g., journalism, magazine writing, or narrative content) with strong storytelling judgment
A simple, fresh writing style and a track record of elevating the quality bar for brand writing
A portfolio that shows both conceptual range and precise craft, including homepage/display copy and longform editorial
Experience leading complex writing initiatives and collaborating with cross-functional teams and senior leaders
Ability to translate complex or technical topics into clear, accessible language
Familiarity with shaping brand voice and contributing to product and feature naming, with an understanding of naming systems and constraints

Job Responsibility

Write display copy for highly visible brand surfaces, including the Dropbox homepage and other critical landing pages
Develop editorial assets across formats (video and audio scripts, display copy, longform customer stories) in partnership with creative, design, and production teams
Contribute to brainstorms, campaign development, and broader brand storytelling across channels
Scale and evolve Dropbox’s brand voice, including leading product naming strategy and process
Edit and elevate copy from internal teams and freelancers to ensure clarity, consistency, and creative excellence
Uphold a high bar for craft, ensuring all writing reflects Dropbox’s voice and strategic goals

What we offer

Competitive medical, dental, and vision coverage
401(k) plan with a generous company match and immediate vesting
Flexible PTO/Paid Time Off, paid holidays, Volunteer Time Off, and more
Income Protection Plans: Life and disability insurance
Business Travel Protection: Travel medical and accident insurance
Perks Allowance to be used on what matters most to you
Parental benefits including: Parental Leave, Child and Adult Care, Day Care FSA, Fertility Benefits, Adoption and Surrogacy Support, and Lactation Support
Access to over 10,000 global co-working spaces through Gable.to
Quarterly Cell phone and internet allowance
Mental health and wellness benefits

Fulltime

Communications & Public Relations Director

Director of Communications role at DICE (part of Fever) to shape and lead global...

Location

United Kingdom , London

Salary:

Not provided

Fever

Expiration Date

Until further notice

Requirements

8+ years of experience in communications, PR, or editorial strategy
Experience in music, tech, culture, or creative industries
Led communications for a brand that challenges convention
Excellent writing skills
Deep familiarity with the music ecosystem
Global mindset with experience working across markets
Strong business and strategic sensibility
Ability to operate independently with autonomy and ownership
Experience managing crisis comms or high-pressure public moments
Comfortable collaborating with creative and technical teams

Job Responsibility

Define and lead DICE's global communications strategy
Act as brand guardian and tone-setter
Build multi-market PR roadmap
Develop and nurture relationships with press, tastemakers, cultural institutions, and artist communities
Act as spokesperson when needed
Navigate complex reputation or comms challenges
Collaborate with Product, Brand, and Partnerships teams
Lead development of thought leadership platforms for DICE execs
Manage relationships with agencies and freelancers
Track, report and interpret media impact and brand sentiment

What we offer

Attractive compensation package
40% discount on all Fever events and experiences
Competitive pension plan
Work in heart of city with possible travel across markets
Hybrid working model
Responsibility from day one
Professional and personal growth
Young, international team of talented people

Fulltime

New

Social ads - growth marketer

Alan is building a vertically integrated health partner that unites insurance an...

Location

France , Paris

Salary:

Not provided

Alan

Expiration Date

Until further notice

Requirements

At least 1 years in paid social advertising (D2C, e-commerce, or B2C tech)
Deep hands-on expertise with Meta Ads (Facebook & Instagram): campaign structure, audience targeting, creative testing, bidding strategies
Comfortable managing significant budgets (€50K+/month)
Creative performance analysis: What makes an ad work - hook rates, retention, decay patterns
Analytical & data-driven: Comfortable with funnel analysis, CAC optimization, ROAS calculations
Creative collaboration: Can brief creatives clearly and give constructive feedback on ad assets
Hands-on executor: Builds, launches, and optimizes campaigns independently with a test-and-learn mindset
Fluent in English
Fluent in French

Job Responsibility

Own Meta (Facebook & Instagram) as a core channel: Own the Meta strategy end-to-end, define priorities, align with business goals, manage budgets, and ensure the channel consistently supports Alan’s growth objectives across all stages of the funnel
Maintain the account for scale, with architectures that maximize learning, signal quality, and stability (broad audiences, simplified structures, clear learning loops, nomenclature)
Run day-to-day optimizations across budgets, pacing, learning phases, audience quality, and segment-level performance
Scale self-serve signatures volume while keeping CAC healthy for TNS (freelancers, self-employed), companies and individuals (retirees, civil servants)
Support sales acquisition by developing and scaling the lead-gen engine on Meta, working closely with Marketing Ops to deliver leads at efficient costs
Stay ahead of platform evolution (Andromeda algorithm, advantage+ shifts, API evolutions, ad formats) and turn them into competitive edges through close collaboration with our Meta Account Manager
Explore and validate TikTok: Own the exploratory strategy for TikTok: define hypotheses, success metrics, creative directions, and run early experiments on audiences, formats, and messaging to evaluate the channel’s potential for signatures and lead gen
Set up and manage the operational foundations (structure, tracking, reporting, budget management), launch and optimize early campaigns, and ensure measurement is in place to validate performance reliably
Document learnings and build the TikTok playbook, documenting what works, what doesn’t, and the conditions for future scaling, to guide long-term investment decisions and cross-channel strategy
Partner with the Ad Creative Lab: Brief the Creative Strategist on platform insights, performance data, and creative direction

What we offer

Fair rewards. Generous equity packages complement your base salary, for permanent contracts only
Flexible Office. Amazing office space at our HQ, sponsored co-working hubs or a full-remote experience with home office equipment sponsorship, we want you to live where you’re the happiest
All the tools you need. Top of the range equipment: Macbook Pro, keyboard, laptop stand, monitor, and Bose noise-canceling headphones
Flexible vacation policy and flexible working hours. Organize your time as you wish
Delightful healthcare insurance: Extremely comprehensive health insurance - 100% for you and your children, 90-100% for partners depending on your country (permanent contracts only)
Transport. Country-specific commuter benefits
Learning & Training opportunities. A highly flexible Training policy free books and budget to attend and speak at conferences if the opportunity arises
Personal growth through coaching: At Alan, coaching isn't just a perk - it's core to who we are. Every Alaner is paired with a dedicated coach from day one, who helps maximize their impact, nurture engagement, and navigate Alan's values to develop their full potential
Parental leave. Extended parental leave for all new parents, for permanent contracts only

Fulltime

Social Ads - Growth Marketer

Alan is experiencing explosive growth, and social media advertising has become o...

Location

France , Paris

Salary:

Not provided

Alan

Expiration Date

Until further notice

Requirements

At least 1 years in paid social advertising (D2C, e-commerce, or B2C tech)
Deep hands-on expertise with Meta Ads (Facebook & Instagram): campaign structure, audience targeting, creative testing, bidding strategies
Comfortable managing significant budgets (€50K+/month)
Creative performance analysis: What makes an ad work - hook rates, retention, decay patterns
Bonus: TikTok Ads experience or strong curiosity to learn
Analytical & data-driven: Comfortable with funnel analysis, CAC optimization, ROAS calculations
Creative collaboration: Can brief creatives clearly and give constructive feedback on ad assets
Hands-on executor: Builds, launches, and optimizes campaigns independently with a test-and-learn mindset
Fluent in English
Fluent in French

Job Responsibility

Own Meta (Facebook & Instagram) as a core channel: Own the Meta strategy end-to-end, define priorities, align with business goals, manage budgets, and ensure the channel consistently supports Alan’s growth objectives across all stages of the funnel
Maintain the account for scale, with architectures that maximize learning, signal quality, and stability (broad audiences, simplified structures, clear learning loops, nomenclature)
Run day-to-day optimizations across budgets, pacing, learning phases, audience quality, and segment-level performance
Scale self-serve signatures volume while keeping CAC healthy for TNS (freelancers, self-employed), companies and individuals (retirees, civil servants)
Support sales acquisition by developing and scaling the lead-gen engine on Meta, working closely with Marketing Ops to deliver leads at efficient costs
Stay ahead of platform evolution (Andromeda algorithm, advantage+ shifts, API evolutions, ad formats) and turn them into competitive edges through close collaboration with our Meta Account Manager
Explore and validate TikTok: Own the exploratory strategy for TikTok: define hypotheses, success metrics, creative directions, and run early experiments on audiences, formats, and messaging to evaluate the channel’s potential for signatures and lead gen
Set up and manage the operational foundations (structure, tracking, reporting, budget management), launch and optimize early campaigns, and ensure measurement is in place to validate performance reliably
Document learnings and build the TikTok playbook, documenting what works, what doesn’t, and the conditions for future scaling, to guide long-term investment decisions and cross-channel strategy
Partner with the Ad Creative Lab: Brief the Creative Strategist on platform insights, performance data, and creative direction

What we offer

Fair rewards. Generous equity packages complement your base salary, for permanent contracts only
Flexible Office. Amazing office space at our HQ, sponsored co-working hubs or a full-remote experience with home office equipment sponsorship, we want you to live where you’re the happiest
All the tools you need. Top of the range equipment: Macbook Pro, keyboard, laptop stand, monitor, and Bose noise-canceling headphones
Flexible vacation policy and flexible working hours. Organize your time as you wish
Delightful healthcare insurance: Extremely comprehensive health insurance - 100% for you and your children, 90-100% for partners depending on your country (permanent contracts only)
Transport. Country-specific commuter benefits
Learning & Training opportunities. A highly flexible Training policy free books and budget to attend and speak at conferences if the opportunity arises
Personal growth through coaching: At Alan, coaching isn't just a perk - it's core to who we are. Every Alaner is paired with a dedicated coach from day one, who helps maximize their impact, nurture engagement, and navigate Alan's values to develop their full potential
Parental leave. Extended parental leave for all new parents, for permanent contracts only

Fulltime

New

Marketing Executive

Join a market-leading nature tech company on a mission to make nature measurable...

Location

United Kingdom , London

Salary:

35000.00 - 40000.00 GBP / Year

NatureMetrics

Expiration Date

Until further notice

Requirements

Previous experience in a marketing role, ideally in a high-growth or B2B tech environment
Digital marketing fundamentals: SEO, SEM, email marketing, social media, content marketing
Webflow and HubSpot proficiency
Strong analytical mindset
Experience using Google Analytics and HubSpot analytics to track campaign performance, identify trends, and turn data into actionable insights
Excellent organisational skills with ability to manage multiple projects simultaneously and meet deadlines
Experience in sustainability, conservation, or environmental sectors is a big plus (but not required if you're genuinely passionate and quick to learn)

Job Responsibility

Drive lead generation across multiple sectors
Track, analyse, and report on performance using Google Analytics and HubSpot
Own operational marketing, manage campaigns, support sales with collateral, coordinate timelines
Help manage our Webflow website, keep content fresh, optimise for conversion
Orchestrate agencies and freelancers
Champion AI and automation
Tell stories that convert across blogs, case studies, videos, guides, and infographics

What we offer

Salary sacrifice pension (sustainability-focused)
Life assurance
25 days annual leave
Cycle to Work scheme
Enhanced family-friendly policy
£250 L&D budget via Learnerbly

Fulltime

Freelance Tech Lead

Blu Selection

Location:
Spain , Barcelona

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
December 27, 2025

Looking for more opportunities? Search for other job offers that match your skills and interests.

Similar Jobs for Freelance Tech Lead

Lead iOS (Swift) Engineer

Growth & B2B Marketing Specialist

Head of Creative Operations

Senior Brand Writer

Communications & Public Relations Director

Social ads - growth marketer

Social Ads - Growth Marketer

Marketing Executive

Freelance Tech Lead

Blu Selection

Location:Spain , Barcelona

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:December 27, 2025

Looking for more opportunities? Search for other job offers that match your skills and interests.

Similar Jobs for Freelance Tech Lead

Lead iOS (Swift) Engineer

Growth & B2B Marketing Specialist

Head of Creative Operations

Senior Brand Writer

Communications & Public Relations Director

Social ads - growth marketer

Social Ads - Growth Marketer

Marketing Executive

Location:
Spain , Barcelona

Category:
IT - Software Development

Contract Type:
Not provided

Job Posted:
December 27, 2025