NMIUnited StatesJul 23

Senior Software Engineer

Senior Software Engineer building bank-to-bank payment systems, public APIs, and integrations using Scala, TypeScript, and C# on AWS. Requires 4+ years experience, ownership of high-stakes problems, and daily use of AI coding tools like Claude.

90k – 130k/yr

Remote4+ YOEFullstack Engineering

About the role

Responsibilities

Design and develop applications in Scala, TypeScript, and C#
Use AI-first tools like Claude Code to research approaches, generate code, and strengthen review and testing
Own code quality and production issues: reviews, bug reports, and troubleshooting
Translate business needs into technical solutions with stakeholders and your team
Participate in agile ceremonies (refinement, planning, standups, retros) and help improve how the team works
Apply system design expertise across messaging (RabbitMQ), data at scale (SQL, S3), database/caching (RDS, Redis, DynamoDB), and CI/CD (Git, Jenkins, CloudFormation, Terraform)

Requirements

Strong grasp of programming languages, techniques, security, and architecture
Ability to take ownership of assigned work and complete it without close oversight
Experience with AI-first coding tools (e.g., Claude Code, Codex, Copilot)
Experience mentoring and participating in code reviews
4+ years developing applications with object-oriented or functional languages
Bachelor's degree in Computer Science (or related field), or 4+ years of additional equivalent experience

Preferred Qualifications

Working knowledge of distributed system design: event-driven microservices, containerized apps, service discovery
Experience with Agile practices
Experience with TDD and Continuous Integration
Experience with paired programming or mobbing
Experience with Scala, cats, or other functional programming tools and libraries
Experience building and sharing AI skills or similar
Exposure to ACH, payments, or other reliable/secure systems is a plus

Skills

ScalaTypeScriptC#AWSDockerAWS LambdaECSRabbitMQSQLS3rdsRedisDynamoDBTerraformJenkins

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