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Freelance Senior Software Engineer (Contratista Independiente) - Remote Colombia

Colombia

The Opportunity

We are seeking an experienced Freelance Sr. Software Engineer; Contratista Independiente 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. The Sr. Software Engineer will be expected to have excellent technical and leadership skills, as well as a passion for staying up-to-date with the latest developments in software engineering.

As an independent contractor, the selected individual will operate as a self-employed professional, managing their own schedule, tools, and workflows to fulfill project requirements. The selected individual will provide services on a project or contract basis as a self-employed professional and will not be classified as an employee of Seamless.AI. Contractors are responsible for managing their own taxes, social security contributions, and business expenses.

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 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
  • 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 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, as this role involves frequent communication with international clients and internal teams. Applicants should have an advanced level of English in both written and verbal communication; however, strong professional proficiency will also be considered based on the ability to perform job-related tasks effectively.

Data Protection & Privacy Compliance Statement

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 Colombia’s Data Protection Law (Law 1581 of 2012). Your data will be stored securely and used solely for hiring decisions and retained only as necessary per applicable laws.

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

Employment Terms

This is either a 6-month or 12-month contract depending on business needs, with the possibility of renewal based on performance and business need. 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. This is an independent contractor position under Colombian law (Código Sustantivo del Trabajo and Law 100 of 1993). The contractor is responsible for managing their own tax obligations, social security contributions (EPS, pension, ARL), and business expenses. Payments will only be processed upon verification of social security compliance, as required by Decree 1273 of 2018. This is a remote position with no required travel.

About Seamless.AI

Seamless.AI has been delivering the world's best sales leads since 2015. 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. 

Seamless delivers the world’s best sales leads. Through our product, we help sales teams maximize revenue, increase sales, and easily acquire their total addressable market using artificial intelligence; by development of a robust real-time contact and company search engine as well as a suite of technically-advanced tools to support sales and lead generation. 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 2022, featured in Forbes as #1 Software company in Ohio in 2022, and on G2’s “Top 100 Highest Satisfaction Products for 2022” list! 

We are an equal opportunity employer and value diversity at our company. Seamless.AI does 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 is not included in our hiring package. Applicants must have legal authorization to work in Colombia at the time of application.

If you require any adjustments or accommodations at any stage of the application process due to a disability or other needs, please let us know by contacting recruiting@seamlesscontacts.com. We are committed to maintaining a safe and inclusive workplace, in compliance with Colombia’s labor and occupational health regulations.

Check out what our employees think about working at Seamless: CLICK HERE

Since 2015, Seamless.AI has helped sales teams maximize revenue with the world’s first real-time B2B search engine. As one of Ohio’s fastest-growing companies, we’ve earned top industry accolades, including G2’s 2025 Best Software Products (#1 Highest Satisfaction Product), Purpose Jobs’ 2024 Best Places to Work, and LinkedIn’s Top 50 Tech Startups (2020, 2022, 2023). We are committed to a diverse, inclusive workplace and do not discriminate based on race, religion, gender, sexual orientation, age, or other protected statuses. Visa sponsorship is not available; applicants must be authorized to work in the U.S.

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