Freelance Senior Software Engineer

Seamless; A distancia; MXN 600,000 - 800,000; Jornada completa

Descripción de la vacante

A leading software development company is seeking an experienced Freelance Sr. Software Engineer for a remote, independent contractor role. The ideal candidate will lead the technical design and development of software projects, collaborate with engineers, and ensure project deliverables meet specifications. Applicants should have over 6 years of software development experience, expertise in front-end and back-end technologies, and fluency in both English and Spanish. This role offers a contract term of 6-12 months with compensation based on project milestones.

Formación

• 6+ years of experience in software development.
• 5+ years of experience with modern front-end and back-end JavaScript development.
• Advanced level English written and verbal communication.

Responsabilidades

• Lead the technical design and development of software projects.
• Collaborate with other engineers to design, develop, and maintain software applications.
• Conduct code reviews to maintain software quality.

Conocimientos

React

ES6/7 JavaScript

Webpack

HTML

CSS

ExpressJS

Aurora Postgres

AWS

GitHub

JIRA

Agile

Fluent in English and Spanish

Educación

Bachelor's in computer science or related field

Descripción del empleo

The Opportunity

We are seeking an experienced Freelance Sr. Software Engineer; Independent Contractor to join our team on a remote, contract basis.

The ideal candidate will be responsible for leading the technical design and development of software projects, working independently from start to finish.

This role involves collaborating with other engineers to design, develop, and maintain software applications, ensuring that project deliverables meet agreed‑upon specifications and timelines.

Responsibilities

• 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.
• Maintain clear and professional communication with project teams, management, and stakeholders while working independently.

Skillset

• Expert knowledge of modern front‑end technologies such as React, ES6/7 JavaScript, Webpack, HTML, and CSS.
• Expert knowledge of modern back‑end development and back‑end JavaScript (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.
• Experience with Agile in a highly collaborative, team‑based environment.
• Experience mentoring and coaching software engineers.

Education and Requirements

• 6+ years of experience in software development.
• 5+ years of experience with modern front‑end and back‑end JavaScript development.
• Bachelor's in computer science or related field, or equivalent work experience.
• Fluency in both English and Spanish is required.
• Advanced level English written and verbal communication; strong professional proficiency will also be considered.

Contract Details

This is an independent contractor role under Mexican civil law. The contract term is either 6‑month or 12‑month, with possibility of renewal based on performance and business needs.

Compensation will be based on project milestones, deliverables, or a fixed contractual rate, as outlined in the service contract.

This role does not include employer‑provided benefits.

Contractor is responsible for managing their own taxes, social security contributions, and business expenses.

Data Protection & Privacy

Seamless.AI is committed to protecting the privacy and security of your personal data.

By applying, you consent to the processing of your personal data for recruitment purposes in accordance with Mexico's data protection laws.

For more details on how we collect, store, and protect your data, or to exercise your rights under Mexican data protection laws, please refer to our Privacy Policy or contact us.

About Seamless.AI

Seamless.AI has been delivering the world's best sales leads since ... (company background).

Our product is the first real‑time, B2B search engine helping sales teams maximize revenue, increase sales, and easily acquire their total addressable market using artificial intelligence.

We have been recognized as one of Ohio's fastest‑growing companies and have been recently ranked No. 7 in LinkedIn's Top 50 Startups of ...

Equal Opportunity Statement

Seamless.AI is an equal opportunity employer and values diversity. We do not discriminate based on race, religion, gender, sexual orientation, age, or other protected statuses. All qualified applicants will receive equal consideration for employment.

Visa Sponsorship

Visa sponsorship is not included in our hiring package.