Senior Software Engineer

Nelo Mobile

$165K — $210K *
Finance & Insurance
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of backend engineering experience
  • Strong fundamentals in distributed systems
  • Proficiency in Kotlin and Spring or similar stacks
  • Familiarity with AWS and Terraform
  • High sense of ownership and decision-making ability

Responsibilities

  • Build and improve backend systems for core product experiences
  • Design scalable, reliable, and high-performance solutions
  • Evolve complex backend environments with sound architectural decisions
  • Conduct thoughtful code reviews to enhance team standards
  • Collaborate with product, data, and engineering teams on impactful projects
  • Leverage modern AI tools for increased engineering efficiency

Benefits

  • 100% coverage for medical, dental, and vision for employees
  • 50% coverage for dependents
  • Unlimited PTO policy
  • 401(k) retirement plan
  • Extended parental leave program
Full Job Description
New York City, onsite
What you'll do
  • Build and improve backend systems that support core product experiences across credit, transactions, and marketplace infrastructure
  • Design for scale, reliability, performance, and data integrity as the business continues to grow
  • Help evolve a complex backend environment with sound judgment around architecture, service boundaries, and long-term maintainability
  • Raise the bar through strong implementation, thoughtful code review, and technical judgment that makes the team better
  • Partner closely with product, data, and engineering peers on high-impact technical and business problems
  • Use modern AI tools and workflows to move faster, think better, and increase engineering leverage
Who you are

You have strong backend fundamentals and real production experience. You've worked in systems where reliability and scale matter, and you know how to make good decisions in codebases with real constraints.

You probably have 5+ years of backend engineering experience, strong distributed systems instincts, and solid judgment around performance, maintainability, and long-term technical quality.

You are comfortable with Kotlin and Spring, or can ramp quickly from a similar backend stack. You likely also have experience with AWS and Terraform.

You think beyond the ticket. You care about how the whole system works, not just the piece directly in front of you.

You have high ownership. You can operate without a lot of hand-holding, and you're comfortable speaking up when something feels off.
Strong pluses
  • Experience in fintech, payments, credit, marketplace, or other high-reliability environments
  • Experience at a fast-moving startup or growth-stage company
  • Experience with monolith-to-service evolution or other architecture transition work
  • Experience leading technically through design, implementation, and code review
  • Strong product instincts
  • Spanish fluency
Location

This role is based in our New York City office. The expectation is four days per week in the office and one flex remote day per week.

We are not considering fully remote candidates for this position.
Compensation and benefits
  • Base salary: $165,000-$210,000 USD
  • Equity
  • Annual performance-based bonus
  • Equity refresher opportunities
  • 100% medical, dental, and vision coverage for employees
  • 50% coverage for dependents
  • Unlimited PTO
  • 401(k)
  • Extended parental leave

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