Freelance Senior Software Engineer Job at Seamless.AI

Freelance Senior Software Engineer

We are seeking an experienced Freelance Sr. Software Engineer; Independent Contr...

Location

Costa Rica

Salary:

Not provided

Seamless.AI

Expiration Date

Until further notice

Requirements

6+ years of experience in software development
5+ years of experience with modern frontend (React.js) and backend (Node.js, Express.js) JavaScript development
Bachelor’s in computer science or related field or equivalent work experience
Fluency in English and Spanish is required
Expert knowledge of modern frontend technologies such as React, ES6/7 JavaScript, Webpack, HTML, and CSS
Expert knowledge of modern back-end development and back-end JavaScript (Node.js, ExpressJS), SQL (Aurora Postgres), and AWS
Excellent communication and interpersonal skills
Strong problem-solving and analytical skills, with the ability to identify and address technical issues and challenges
Experience with software development tools such as GitHub and JIRA
Experience with cloud-based development and deployment, such as AWS

Job Responsibility

Provide technical expertise in the design, development, and maintenance of software products
Develop and maintain high-quality software code in alignment with project requirements
Ensure that project deliverables are completed on time, within budget, and meet quality expectations
Define technical, operational, and security requirements for software projects
Collaborate with other teams to establish and maintain best practices for software development
Offer technical guidance and recommendations to support engineering teams
Conduct code reviews to maintain software quality and adherence to best practices
Research and evaluate new technologies to enhance software development processes and efficiencies
Work with stakeholders to resolve technical challenges, troubleshoot issues, and implement solutions
Contribute to the development and maintenance of technical documentation and system guides

Freelance Senior Software Engineer

We are seeking an experienced Freelance Sr. Software Engineer; Independent Contr...

Location

Mexico

Salary:

Not provided

Seamless.AI

Expiration Date

Until further notice

Requirements

6+ years of experience in software development
5+ years of experience with modern frontend (React.js) and backend (Node.js, Express.js) JavaScript development
Bachelor’s in computer science or related field or equivalent work experience
Fluency in both English and Spanish is required

Job Responsibility

Provide technical expertise in the design, development, and maintenance of software products
Develop and maintain high-quality software code in alignment with project requirements
Ensure that project deliverables are completed on time, within budget, and meet quality expectations
Define technical, operational, and security requirements for software projects
Collaborate with other teams to establish and maintain best practices for software development
Offer technical guidance and recommendations to support engineering teams
Conduct code reviews to maintain software quality and adherence to best practices
Research and evaluate new technologies to enhance software development processes and efficiencies
Work with stakeholders to resolve technical challenges, troubleshoot issues, and implement solutions
Contribute to the development and maintenance of technical documentation and system guides

Freelance Senior Software Engineer

We are seeking an experienced Freelance Sr. Software Engineer; Independent Contr...

Location

Uruguay

Salary:

Not provided

Seamless.AI

Expiration Date

Until further notice

Requirements

6+ years of experience in software development
5+ years of experience with modern frontend (React.js) and backend (Node.js, Express.js) JavaScript development
Bachelor’s in computer science or related field or equivalent work experience
Fluency in both English and Spanish
Expert knowledge of modern frontend technologies such as React, ES6/7 JavaScript, Webpack, HTML, and CSS
Expert knowledge of modern back-end development and back-end JavaScript (Node.js, ExpressJS), SQL (Aurora Postgres), and AWS
Excellent communication and interpersonal skills
Strong problem-solving and analytical skills
Experience with software development tools such as GitHub and JIRA
Experience with cloud-based development and deployment, such as AWS

Job Responsibility

Provide technical expertise in the design, development, and maintenance of software products
Develop and maintain high-quality software code in alignment with project requirements
Ensure that project deliverables are completed on time, within budget, and meet quality expectations
Define technical, operational, and security requirements for software projects
Collaborate with other teams to establish and maintain best practices for software development
Offer technical guidance and recommendations to support engineering teams
Conduct code reviews to maintain software quality and adherence to best practices
Research and evaluate new technologies to enhance software development processes and efficiencies
Work with stakeholders to resolve technical challenges, troubleshoot issues, and implement solutions
Contribute to the development and maintenance of technical documentation and system guides

Senior C++ Engineer - AI Training

As a Senior C++ Engineer, you will work remotely on an hourly paid basis to revi...

Location

Salary:

20.00 USD / Hour

Braintrust

Expiration Date

Until further notice

Requirements

Bachelor’s degree or higher in Computer Science, Electrical/Computer Engineering, or a closely related technical field
7+ years of professional experience developing production software in C++ for systems, performance-critical, or large-scale applications
Expert-level proficiency in modern C++ (C++11 and later), including templates, move semantics, smart pointers, and the STL
Strong background in systems programming concepts such as concurrency, operating systems, low-level performance optimization, and memory management
Hands-on experience with C++ build systems, compilers, linkers, debuggers, and profiling or analysis tools
Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines
Proven experience conducting detailed C++ code reviews and enforcing coding standards for safety, performance, and maintainability
Comfort working with version control, CI/CD workflows, and automated testing frameworks in modern C++ projects

Job Responsibility

Review AI-generated C++ code, systems designs, and technical explanations
Generate high-quality reference implementations and step-by-step reasoning for complex engineering problems
Assess solutions for accuracy, clarity, safety, and adherence to the prompt
Identify errors in logic, memory handling, concurrency, or performance
Fact-check technical information
Write high-quality explanations and model solutions that demonstrate correct methods
Rate and compare multiple AI responses based on correctness and reasoning quality
Develop AI Training Content: Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects
Optimize AI Performance: Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance
Ensure Model Integrity: Test AI models for potential inaccuracies or biases, validating their reliability across use cases

What we offer

Get rewarded with BTRST, Braintrust's cryptotoken, for inviting talent, taking a class—even signing up! Use token rewards to help shape the future of the platform

Parttime

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

Vice President, Design (3D)

We are seeking a Vice President of Design to serve as a senior executive leader ...

Location

United States , New York

Salary:

250000.00 - 290000.00 USD / Year

Cella

Expiration Date

Until further notice

Requirements

10+ years of design experience within experiential, environmental, or architectural roles, with at least 4 years in a senior leadership position (VP or Director level) at a creative agency or design studio
Deep expertise in 3D/spatial design is mandatory
advanced proficiency in modeling and rendering software such as SketchUp, Rhino, Vray, or Unreal Engine is required
Comprehensive understanding of fabrication processes, materials, and production workflows specifically for large-scale brand experiences and physical builds
Exceptional ability to articulate complex creative visions to executive-level stakeholders and persuade clients through evocative storytelling and visuals
A robust portfolio demonstrating a high level of innovation and spatial storytelling rather than just traditional 2D graphic design
Must be based in one of the agency's primary hubs (Los Angeles, San Francisco, or New York City) and willing to adhere to a hybrid in-office schedule (2 days per week)

Job Responsibility

Lead the overall vision and execution of the design function, ensuring all outputs across spatial, environmental, and integrated disciplines meet the highest standards of craft
Champion the integration of creative technology and future-focused design trends to maintain a competitive edge in the experiential landscape
Act as a strategic design consultant for high-profile clients, translating complex business objectives into industry-defining physical and visual solutions
Lead and mentor a multidisciplinary team of 10+, fostering a culture of accountability, growth, and creative curiosity
Collaborate on hiring strategies to attract top-tier talent and manage an extensive national network of freelance specialists and 3D partners
Partner with Production, Strategy, and Account teams to ensure design integrity is maintained from initial sketch through final on-site installation
Refine departmental workflows, templates, and software standards (including 3D modeling and rendering platforms) to improve efficiency and output quality
Oversee the technical vetting of materials and fabrication processes, ensuring ambitious concepts are delivered on time, on budget, and within structural requirements
Direct the design of compelling pitch materials and environmental visualizations to win new business and expand the agency's portfolio

What we offer

medical
prescription
dental
vision
AD&D
life insurance offerings
short-term disability
401K plan

Fulltime

New

Kitchen Assistant

Location

United Kingdom , Birmingham

Salary:

12.70 - 13.00 GBP / Hour

360 Resourcing Solutions

Expiration Date

Until further notice

Requirements

Previous experience in a kitchen environment is advantageous but not mandatory
Enthusiastic and willing to learn about food preparation and kitchen operations.

Job Responsibility

Supporting the kitchen operations
Maintaining a clean and organised workspace.

What we offer

Full in-house training provided through our bespoke RISE programme
50% off your food and drink bill at any of our restaurants, at any time, for up to 8 people
Enhanced Maternity and Paternity packages
Access to up to 40% of earnt wages and financial wellbeing tools through Wagestream
Employee Assistance Programme through The Drinks Trust, providing 24/7 support and access to counselling services
Career pathways and development through our high performers programme
3% employer pension contribution
Team meals on shift
15% off your grocery bill at Iceland Foods
Health Care Cash Plan

Fulltime

New

Accounting Clerk (AP/AR & Cash Applications)

Robert Half is partnering with a well-established San Antonio-based manufacturer...

Location

United States , San Antonio

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

1+ years of experience in Accounts Payable, Accounts Receivable, or general accounting support
Proficiency in QuickBooks Online (highly preferred)
Strong attention to detail and organizational skills
Ability to manage multiple priorities in a deadline-driven environment
Excellent communication skills and a team-oriented mindset
At least 3 years of experience in accounts payable, accounts receivable, cash applications, or broader accounting support functions
Practical experience working with QuickBooks, including QuickBooks Online
exposure to QuickBooks Enterprise is a plus
Strong data entry accuracy with the ability to manage a high volume of financial transactions efficiently
Proficiency in Microsoft Excel for tracking, reconciling, and reviewing accounting information

Job Responsibility

Process vendor invoices with accuracy and timeliness
Match purchase orders, receipts, and invoices
Manage vendor inquiries and maintain strong relationships
Assist with weekly check runs and ACH payments
Generate and distribute customer invoices
Monitor aging reports and follow up on outstanding balances
Apply customer payments and reconcile discrepancies
Post daily cash receipts, wire transfers, and ACH payments
Reconcile incoming payments to customer accounts
Investigate and resolve unapplied cash

What we offer

Medical, vision, dental, life and disability insurance
enrollment in company 401(k) plan
access to top jobs
competitive compensation and benefits
free online training

Fulltime

Select Country

Freelance Senior Software Engineer

Seamless.AI

Location:
Colombia

Category:
IT - Software Development

Contract Type:
B2B

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
April 02, 2025

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

Similar Jobs for Freelance Senior Software Engineer

Freelance Senior Software Engineer

Freelance Senior Software Engineer

Freelance Senior Software Engineer

Senior C++ Engineer - AI Training

Freelance Senior User Interface Designer

Vice President, Design (3D)

Kitchen Assistant

Accounting Clerk (AP/AR & Cash Applications)

Our AI answers in your language

Freelance Senior Software Engineer

Seamless.AI

Location:Colombia

Category:IT - Software Development

Contract Type:B2B

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:April 02, 2025

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

Similar Jobs for Freelance Senior Software Engineer

Freelance Senior Software Engineer

Freelance Senior Software Engineer

Freelance Senior Software Engineer

Senior C++ Engineer - AI Training

Freelance Senior User Interface Designer

Vice President, Design (3D)

Kitchen Assistant

Accounting Clerk (AP/AR & Cash Applications)

Location:
Colombia

Category:
IT - Software Development

Contract Type:
B2B

Job Posted:
April 02, 2025