Freelance Senior Front End Developer Job at Hogarth (Buenos Aires)

Freelance Senior Full Stack Developer

We are looking for a Senior Full Stack Developer to join our team and contribute...

Location

Spain , Barcelona

Salary:

Not provided

Blu Selection

Expiration Date

Until further notice

Requirements

5+ years of experience as a Full Stack or Front-End Engineer
Strong hands-on experience with React.js and Next.js
Advanced knowledge of JavaScript and TypeScript
Experience building and consuming REST APIs
Good understanding of backend technologies (Node.js required
Python/FastAPI is a plus)
Experience with component libraries, design systems, or shared UI components
Familiarity with modern testing frameworks (Jest, Testing Library)
Good understanding of performance, security, and scalability principles
Comfortable working in cross-functional agile teams

Job Responsibility

Develop and maintain complex, data-heavy user interfaces using React and Next.js
Build and optimise reusable components and contribute to the internal UI library
Design and integrate REST APIs and WebSocket endpoints
Ensure code quality through clean architecture and best practices
Write unit and integration tests (Jest / Testing Library)
Collaborate with Product, UX, and Data to deliver features end-to-end
Participate in architecture discussions and decision-making
Troubleshoot and resolve issues across the stack
Contribute to CI/CD processes and development workflow improvements
Maintain documentation on Confluence

What we offer

Fixed daily rate: €525/day
3-month contract, renewable depending on performance and roadmap

Fulltime

Freelance Senior Front End Developer

Freelance Senior Front End Developer role at Hogarth, the Global Content Product...

Location

Argentina , Buenos Aires

Salary:

Not provided

Hogarth

Expiration Date

Until further notice

Requirements

In-depth knowledge of HTML, CSS/SCSS/SASS, JavaScript and other web development/production tools
Expert in JavaScript with working experience on a team building components in React with Typescript
Ability to independently develop JavaScript prototypes which includes research and proof of concept development
Familiarity with Vue.js
AI-assisted developer tooling (i.e. Claude Code, Roo Code)
Proficient working with internal or 3rd party API's
Experience using testing frameworks i.e. Vitest, Mocha, Playwright
Experience with package managers, i.e. NPM or Yarn
Experience using module bundlers such as Vite
Previous experience with HTML E-mail development

Freelance Senior Email Developer

Hogarth is the Global Content Production Company. Part of WPP, Hogarth partners ...

Location

Argentina , Buenos Aires

Salary:

Not provided

Hogarth

Expiration Date

Until further notice

Requirements

In-depth knowledge of core front end technologies, HTML and CSS – Sass
Working knowledge of JavaScript
Experience authoring components in a CMS or content admin tool
Experience with web development tools like xScope, PerfectPixel, and Xcode Simulator
Expertise building marketing emails or web-development for premium consumer brands
Experience implementing pixel perfect designs
Experience developing to responsive web design specifications
Experience with translating comps and wireframes into flexible and usable code
Experience with version control software
Experience with Photoshop

Freelance QA

You must display excellent written and oral skills, with demonstrated interperso...

Location

Argentina , Buenos Aires

Salary:

Not provided

Hogarth

Expiration Date

Until further notice

Requirements

Work across both Mac and PC platforms (mainly in Client environment)
Experience working with Front-end Web Page developments
Webpage Creative Compliance and Formatting, according to style sheet Copy and Content QA according to brief
Image, video and other media assets
Cross Browser Compatibility
Localization testing
Usability and Accessibility Testing
Device testing – Familiarity with Fluid, page responsiveness
Knowledge on any Defect Management tool (JIRA, Mercury / Rational tools)
Familiarity with SQL – Intermediate level

Job Responsibility

Meet challenging deadlines, documenting and adhering to process at all times
Collaborate and contribute to the processes and procedures in place to ensure a smooth flow of work through the QC department
Be able to plan, estimate and strategize the work
Carry out administrative tasks to do with configuration management
Manage all tickets and bugs through QA tools
Be able to write test plans and document progress
Proven accuracy and attention to detail
Enthusiasm born of pride in the output
Understanding of basic Unix commands to be able navigate through the terminal and execute scripts
Work within a carefully constructed process quickly but accurately

Freelance Senior User Interface Designer

We are inviting a Freelance Senior UI Designer to join our creative team in crea...

Location

China , Shanghai

Salary:

Not provided

Mobile Now Group

Expiration Date

Until further notice

Requirements

English writing and speaking is mandatory
At least 2 years experience working as a UI designer or in a related field
Experience defining visual & user interface guidelines and building comprehensive designs for applications or software
Experience with production design execution and working with implementation, realizing designs
Knowledge of Sketch, Principle, Zeplin, Keynote, After eﬀects, Photoshop, Illustrator, or equivalents
Proactive, accountable, and detail oriented
Demonstrated ability to critical think, concept, and strategize
Multi-disciplinary experience, able-communicator, and organized

Job Responsibility

Understand the needs of the client and/or project before developing UI and visual foundations
Design compelling interfaces that best reflect our clients’ brand image
Conduct brand studies, trendscapes, and design synthesis as part of the foundational design process
Work in a multi-disciplinary setting, with UX designers, project managers, engineers, and quality analysts
Create pictograms, illustrations, and animations as part of user interface designs
Present and lead clients through iterative workshops
Co-lead the collaborative process with front end engineering on the design-to-dev hand-oﬀ
Conduct build reviews to ensure that implementation accurately reflects designs

New

Safety Intern

Join Lhoist North America’s dynamic internship program and gain hands-on experie...

Location

United States , Calera

Salary:

Not provided

Lhoist

Expiration Date

Until further notice

Requirements

Strong analytical skills
Open to feedback and eager to learn
Proactive and positive approach to work
Effective communication skills, both oral and written
High learning agility
English is mandatory
Willingness to travel if necessary

Job Responsibility

Tackle Real Projects: Dive into projects outlined by management and be ready to adapt to new challenges
Learn and Grow: Seek out work and learning opportunities proactively
Communicate Like a Pro: Engage with various levels of the organization and keep your manager/mentor updated on your progress
Improve Processes: Work efficiently and effectively to help improve processes at your location
Embrace Our Culture: Live our values of Respect, Integrity, and Courage. Work safely, especially around heavy equipment, and be a valued team member
Showcase Your Work: Present your project overview to Senior Leaders and local management at the end of the program
Stay Curious: Be eager to learn new skills and participate in all intern program activities (orientation, mid-term session, closing session, etc.)
Get There: Ensure you can transport yourself to and from the work location
And More: Take on other duties as assigned

What we offer

Comprehensive medical, dental, vision, life, and disability insurance
Paid vacation and sick time
Attractive 401(k) Retirement Savings Plan with a generous Employer Match
Supplemental Contribution based on your Years of Service
Educational assistance

Fulltime

New

Healthcare Assistant

Help us to deliver great primary care by improving access, outcomes and patient ...

Location

United Kingdom , Nottingham

Salary:

26000.00 - 30000.00 GBP / Year

Operose Health

Expiration Date

February 20, 2026

Requirements

Experience in a Primary Care setting and phlebotomy is essential
Able to work within processes, procedures and maintain confidently and data security
Must be able to adapt with changing priorities and be personable, polite and patient with our patients
Must have basic PC skills such as Word, Excel and email
Ability to use own judgement and be aware of professional boundaries they are working to

Job Responsibility

Assisting with patient duties as required and support other team members such as clinical and Nurse Lead with patient care
Supporting the Practice with duties related to CQC outcomes and ensuring compliance is maintained
Working with patients with long term conditions such as Diabetes etc
Provide clinical procedures such as new patient health checks, BMI, blood pressure, pulse and simple wound care
Completing administrative tasks such as new patient registrations, providing appropriate leaflets, stock control and ordering

What we offer

27 days annual leave plus bank holidays pro rata
Access to our bespoke learning management system and annual formative clinical assessments to support competency development
The benefits of working with an at scale provider of primary care means that we lots of opportunities for our colleagues to specialise and develop
Car benefit scheme – specialising in electric vehicles
Cycle to work scheme
Travel season ticket loans
Discount cards
Employee wellbeing services including free yoga videos and employee wellbeing app

Parttime

New

Trainee Dealer

As a Trainee Dealer, you will join our structured Dealer Training School, where ...

Location

United Kingdom , London

Salary:

25932.00 - 25938.00 GBP / Year

360 Resourcing Solutions

Expiration Date

Until further notice

Requirements

Aged 18 or above
Right to work in the UK
No previous dealing experience required
Right attitude, commitment, and passion for customer service
Flexible scheduling for nights, evenings, weekends, and shifts in a 24/7 trading week
Ability to spend a large portion of shift on feet working directly with the public

Job Responsibility

Participate in structured training sessions to learn the rules and dealing procedures for games such as Blackjack, Roulette and Three Card Poker
Develop proficiency in handling gaming equipment (cards, chips, chippers, shufflers etc.) accurately and efficiently
Learn and adhere to all gaming regulations, internal controls, and security procedures
Maintain a professional and friendly attitude toward guests to create a welcoming and enjoyable gaming environment
Ensure integrity and fairness in all game play, following house rules and casino standards
Learn to manage table inventory, exchange chips, and accurately calculate payouts
Deliver outstanding customer service and create memorable experiences for our guests
Work as part of a team to ensure smooth table operations and excellent customer service
Demonstrate key service behaviours: On It, Upbeat and Positive Attitude, Be Nice, Open and Close

What we offer

50% off food and beverages in all our UK venues
Extensive Rewards platform: discounts on travel, retail, hospitality, health and much more
Company Sick Pay
Company Pension
Life Assurance
Refer a friend incentive
Financial advice services
Employee health and wellbeing services
Virtual GP Services
Season Ticket Loans

Fulltime

Freelance Senior Front End Developer

Hogarth

Location:
Argentina , Buenos Aires

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Requirements:

Additional Information:

Job Posted:
February 03, 2026

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Freelance Senior Front End Developer

Hogarth

Location:Argentina , Buenos Aires

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Requirements:

Additional Information:

Job Posted:February 03, 2026

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Job Posted:
February 03, 2026