Freelance Senior Software Engineer

Huge; Brooklyn; On-site; GBP 2,800 - 4,100; Full time

Job summary

Huge is seeking a freelance Senior Software Engineer to design, develop, and integrate Salesforce solutions, including Marketing Cloud migrations and CheckMarket integrations. The role emphasizes hands-on engineering, requirement translation, and documentation in a fast-paced Agile environment.

The candidate will work remotely within Colombia and must be capable of delivering independently within the defined freelance engagement window. Start is October 5, 2026 with end date December 4, 2026.

Qualifications

• 5+ years of experience in software engineering with Salesforce hands-on development.
• Strong experience with Salesforce Apex, Lightning components, and APIs/integrations.
• Experience with REST/SOAP integrations and external systems.
• Familiarity with Jira and Agile/Scrum methodologies.
• Ability to translate requirements into technical solutions and acceptance criteria.

Responsibilities

• Design, develop, and maintain scalable Salesforce solutions using Apex and Lightning components.
• Build and support integrations between Salesforce and external or enterprise systems using REST/SOAP APIs.
• Support the Salesforce Marketing Cloud migration and CheckMarket integration from a technical development perspective.
• Develop solutions for capabilities such as survey lookup, PDF generation, and user management.
• Translate business requirements into technical requirements, user stories, acceptance criteria, and implementation tasks.
• Troubleshoot, debug, test, and optimize Salesforce applications and integrations.
• Participate in Agile/Scrum ceremonies, sprint planning, refinement, code reviews, and technical discussions.
• Create and maintain technical documentation, API specifications, and integration documentation.
• Collaborate with business, product, and technical teams to clarify requirements and define effective technical solutions.
• Work independently, prioritize tasks, identify risks, and deliver within the scope and timeline of a freelance engagement.

Skills

Salesforce development

Apex

Lightning components

APIs / integrations

Agile / Scrum

Troubleshooting

Technical documentation

Tools

Jira

Git

CheckMarket

Job description

Location: This position is remote within Colombia.

About Technology.

Technology at Huge is powered by a global practice of creative technologists—spanning Engineers, QA specialists, Business Analysts, Data Scientists, and ML Architects,we look beyond standard patterns to build resilient, enterprise-grade systems. We combine deep engineering rigor with innovation at the edge of agentic AI, modern data stacks, and cloud infrastructure. We don't wait for industry standards to set themselves; we engineer the intelligent systems that turn audacious strategic vision into production-ready reality.

The role.

Huge is looking for a Freelance Senior Software Engineer to support Salesforce development, integrations, and enterprise technology initiatives. This role is primarily focused on hands on software engineering, with additional responsibility for translating requirements into technical solutions and supporting documentation.

The ideal candidate has strong experience with Salesforce development, Apex, Lightning components, APIs and enterprise integrations, along with solid software engineering fundamentals and experience working in Agile environments.

What you'll be doing.

• Design, develop, and maintain scalable Salesforce solutions using Apex and Lightning components.

• Build and support integrations between Salesforce and external or enterprise systems using REST/SOAP APIs and common integration patterns.

• Support the Salesforce Marketing Cloud migration and CheckMarket integration from a technical development perspective.

• Develop solutions for capabilities such as survey lookup, PDF generation, and user management.

• Translate business requirements into technical requirements, user stories, acceptance criteria, and implementation tasks.

• Troubleshoot, debug, test, and optimize Salesforce applications and integrations.

• Participate in Agile/Scrum ceremonies, sprint planning, refinement, code reviews, and technical discussions.

• Create and maintain technical documentation, API specifications, and integration documentation.

• Collaborate with business, product, and technical teams to clarify requirements and define effective technical solutions.

• Work independently, prioritize tasks, identify risks, and deliver within the scope and timeline of a freelance engagement.

What we'd like to see.

• 5+ years of experience in software engineering, with strong hands-on experience developing and integrating Salesforce solutions.

• Strong experience with Salesforce development, Apex, Lightning components, and Salesforce APIs/integrations.

• Experience integrating Salesforce with external and enterprise systems using REST/SOAP APIs.

• Solid understanding of object-oriented programming, design patterns, debugging, testing, version control, and scalable application development.

• Experience supporting Salesforce Marketing Cloud migrations and/or enterprise Salesforce integration projects.

• Experience with Jira and Agile/Scrum methodologies.

• Ability to translate requirements into technical solutions, user stories, and acceptance criteria.

• Strong troubleshooting and problem solving skills.

• Experience creating and maintaining technical and API documentation.

• Ability to work autonomously and effectively within a defined freelance engagement.

• Nice to have: Experience with CheckMarket, survey platforms, PDF generation, or user-management solutions.

Important Considerations

• Start Date: October 5, 2026

• End Date: December 4, 2026

• Contract Type: Freelance

• Location: Remote within Colombia

• Equipment: You will use your own computer and equipment.

If the selected candidate holds a degree in Engineering or a related profession, they must present their professional license. To verify your degree requires this license, please visit www.copnia.gov.co and https://www.consejoprofesional.org.co/.

About Huge.

Huge is a design and technology company. We create products and experiences that grow the world’s most ambitious brands. We do this by designing experiences for people, not users, and uncovering new sources of growth by leveraging our creative talent, our proprietary platform LIVE and unlocking the advantages brought to us by emerging technologies. We believe all experiences should be intelligent, shoppable and unique to every brand.

Huge’s nearly 1,000 thinkers, tinkerers, makers and creators, have been problem-solving across North America, Europe, and Latin America for over 25 years. You’ll find more information at www.hugeinc.com.

Huge is committed to creating an inclusive employee experience for all. Regardless of race, gender, religion, sexual orientation, age, disability, or if you’re parenting the next generation of innovators, we firmly believe that our work is at its best when everyone feels free to be their most authentic self.

Huge is an equal opportunity employer (EOE). We strongly support diversity in the workforce. We are committed to an inclusive, barrier-free recruitment and selection process and work environment. If you are contacted for a job opportunity, please advise us of any accommodation needed to ensure you have access to a fair and equitable process. Any information received relating to accommodation will be addressed confidentially.

Workers shall not be required to pay employers’ or agents’ recruitment fees or other related fees for their employment. If any such fees are found to have been paid by workers, such fees shall be repaid to the worker.

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