Senior Backend Software Engineer (Java, Kotlin)

TL;DR

Senior Backend Software Engineer (Java, Kotlin): Building and optimizing high-load backend services for enterprise system integration, large data set processing, and enabling LLM-driven sales insights at scale with an accent on API design, database performance, and scalability. Focus on developing robust microservices architecture, solving complex data processing challenges, and ensuring system reliability under heavy traffic.

Location: Remote. Candidates must hold valid authorization to work in EMEA or LATAM. Visa sponsorship is not offered.

Salary: $120,000–$140,000

Company

hirify.global is an early-stage startup building a product that leverages LLMs to generate sales insights from large public datasets.

What you will do

• Collaborate closely with team members to build and scale core product features.
• Design and implement integrations with various enterprise systems.
• Develop robust systems for large-scale data scraping and processing.
• Build and optimize backend services enabling LLMs to generate sales insights.
• Contribute to all parts of the backend, helping to build the product from scratch.

Requirements

• Senior-level experience in the JVM ecosystem, ideally with Kotlin.
• Strong experience with Enterprise B2B SaaS or Big Data processing.
• Fluent in written and spoken English (C1 level).
• Proficiency with GCP, PostgreSQL, Firebase, and Python.
• Must hold valid authorization to work in EMEA or LATAM.
• Visa sponsorship or work permit assistance is not available.

Nice to have

• Experience with Natural Language Generation (NLG) or Prompt Engineering.
• Familiarity with Enterprise API integrations and large-scale web scraping.
• Previous experience working in a fast-growing startup environment.

Culture & Benefits

• Opportunity to join an early-stage, fast-growing startup team.
• Equity offered as part of the compensation package.
• Collaborative environment focused on building a product from zero to one.
• Opportunity to work across the full backend stack.

Hiring process

• Application review (CV and statement).
• 20-minute phone interview.
• Programming challenge (LeetCode & SQL).
• Three main interviews: System design, Live Java/Kotlin coding, Product thinking & past work discussion.
• Expedited process aiming for completion within one week.