Senior Full-Stack Developer (Data Platform)

🚀 Senior Full-Stack Developer (Data Platform) — Remote

📍 Role Details

Role: Senior Full-Stack Developer (Data Platform)

Experience: 5+ Years

Location: Remote

Employment Type: Full-time

🏢 About Mailin.ai

Mailin.ai is building infrastructure for scalable cold outreach. We help businesses create and manage large numbers of email accounts through automation, dedicated servers, and API-driven workflows — enabling significantly better deliverability and lower operational costs compared to traditional providers.

As we expand our platform capabilities, we’re now building a B2B data platform that will power internal systems, customer-facing APIs, and data-driven workflows at scale.

We operate as a fully remote, high-ownership engineering team focused on speed, execution, and building technically strong products.

🔍 About the Role

We’re hiring a Senior Full-Stack Developer to help architect, build, and own our core data platform.

You’ll initially work alongside our lead engineer to ship the first production version, then take long-term ownership of the platform as it scales.

This is a highly ownership-driven role for someone comfortable working on API-first systems, indexing/search infrastructure, and scalable B2B SaaS products.

🛠️ What You’ll Build

You’ll work on a B2B data platform that:

•          Ingests and indexes large datasets from third-party vendors

•          Serves data through a performant API layer

•          Powers a clean, scalable web application experience

•          Handles efficient querying, indexing, and search workflows

The data ingestion pipeline itself is handled separately — your primary focus will be:

•          API architecture

•          Query performance

•          Search/indexing systems

•          Platform scalability

•          Web application development

💻 Tech Stack

•          Backend/API: GoLang

•          Frontend: Laravel + Vue.js

•          Search & Indexing: Elasticsearch, Typesense, or equivalent

✅ Required Skills

•          5+ years of full-stack development experience

•          Strong production experience with Go, specifically building APIs

•          Strong experience with Laravel and Vue.js

•          Hands-on experience with Elasticsearch, Typesense, or similar indexing/search tools

•          Experience building API-first platforms or data-heavy products

•          Background working in B2B SaaS environments

•          Ability to work independently and take ownership of a product area

➕ Nice to Have

•          Experience scaling APIs under real production/query load

•          Familiarity with vendor data ingestion or ETL-adjacent workflows

•          Experience working in startup or high-ownership environments

🌟 Why Join Mailin.ai

•          Build core infrastructure from the ground up

•          High ownership and technical autonomy

•          Work on real scaling and performance challenges

•          Fully remote engineering culture

•          Opportunity to shape long-term platform architecture