Senior Backend Go Engineer | Fully Remote | B2B

Fullinfo is looking for a Senior Backend Go Engineer who wants to build high quality data infrastructure in a fast moving startup environment. You will work on the core of our product. A scalable, cloud based extraction engine written in Go and deployed on Amazon Web Services.

This is a fully remote role. We prefer candidates based in Brazil, Argentina, Turkey, Croatia or Portugal.

About us

Fullinfo is a self funded software company building a new way to search and find company data.We are developing a one stop platform for sales and marketing teams to find leads, contacts and actionable business information. Faster and more intuitively than ever before.

Think of it as a search engine meets a CRM enrichment tool. With filters, clean user interface and structured output. The platform integrates with tools like Salesforce and Hubspot and is designed for teams that need fast and reliable company insights.

The backend is built in Go. The frontend is written in TypeScript. Everything runs on Amazon Web Services using a serverless architecture.

We are not dependent on external funding and have no financial runway concerns. This gives us the freedom to focus on building something that actually works, not just something that sells.

Role description

You will join our backend team to improve and scale our data extraction engine.

You are responsible for the quality and performance of our internal data pipeline. That includes writing new components, improving existing ones and helping shape how we extract and serve structured business data.

This role combines technical autonomy with close collaboration. You will work with our CTO, principal engineer and frontend developers to keep the entire system aligned and performant.

Your work includes:

• Writing scalable backend components in Go
• Improving the efficiency and reliability of our data extraction process
• Connecting steps in the pipeline to improve speed and cost
• Working with Amazon Web Services infrastructure like Lambda, DynamoDB, S3 and SQS
• Reviewing and improving how we structure, store and expose data
• Thinking beyond code and proposing architectural improvements

Functie eisen

• At least five years of experience in backend development
• Strong experience with Go is essential
• Familiar with services like DynamoDB, S3, EventBridge and SQS
• Comfortable working with serverless infrastructure
• Experience with TypeScript or Python is a plus
• You hold a bachelor’s degree in Computer Science or equivalent
• Fluent in English

Bonus:

• You have worked in early stage teams or startups before
• You enjoy working across domains and contributing where it matters
• You are language agnostic and solution oriented
• You communicate clearly with both engineers and non engineers
• You are comfortable reviewing code, sharing ideas and mentoring when needed

Conditions

• A twelve month contract as an independent contributor with a max total compensation of €60k.
• Fully remote work
• A product first mindset and a culture of quality
• A team that values ownership, clarity and problem solving
• No micromanagement. Just trust and responsibility
• A chance to shape the platform before launch
• Competitive compensation at senior level

The hiring process includes an initial call, a technical assignment and a follow up interview with our engineering team.

Interested?

Send your resume to [email protected] or message Lars at +31 6 2029 3364.

Fullinfo is exclusively partnering with Haystack People for this role. They will support you throughout the process and handle the initial screening, focusing on both your relevant experience and the soft skills that match the company's needs.