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Billtrust

Cloud-based AR automation for B2B billing

Lead Software Engineer, PHP

Backend EngineeringPosted on Nov 11
Full-timeHyderabad, Telangana, IndiaNo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree in Computer Science or equivalent experience, with a strong understanding of data structures and scalable software design.
  • At least 9 years of relevant software engineering experience designing and implementing scalable web applications and services.
  • Strong proficiency in PHP (Laravel or Kohana) and .NET (C#), including experience building scalable and maintainable web applications and services.
  • Experience deploying software to AWS and working with Terragrunt or Terraform and messaging platforms such as SNS or SQS to support cloud-native and event-driven architectures built on .NET technology.
  • Understanding of testable application design principles.
  • Strong understanding of SQL and relational databases, specifically MySQL, including schema design and query optimization.
  • Knowledge of NoSQL data stores such as MongoDB or DynamoDB.
  • Experience managing source control with GitHub or a similar tool.
  • Experience with spec-driven, agentic AI workflows using AI coding assistants such as Claude Code, Pi with OpenRouter, or similar tools.
  • Strong code review skills for AI-generated and human-written code.
  • Proven experience contributing to development process improvements.
  • Strong collaboration and verbal communication skills.

Responsibilities

  • Own specification quality for assigned features and ensure specifications are complete, unambiguous, and include acceptance criteria and edge cases.
  • Collaborate with the product owner to translate product requirements into detailed technical specifications.
  • Take ownership of domain knowledge within the cohort and share that knowledge and experience with the team.
  • Use AI coding tools such as Claude Code to generate implementations from specifications.
  • Design, build, support, and maintain performant, secure, and maintainable web application and service features.
  • Design performant software with a DevOps mindset that scales as volumes increase.
  • Review AI-generated code and peer contributions for correctness, security, and architectural alignment.
  • Validate AI-generated tests and ensure comprehensive test coverage.
  • Optimize queries, schemas, and storage strategies across relational MySQL and NoSQL data stores.
  • Help evolve AI-assisted development practices, including specification templates, prompt patterns, and validation workflows.
  • Mentor other engineers on effective AI tool usage and specification-writing techniques.

Desired Qualifications

  • Experience with message queues or streaming platforms such as Kafka.
  • Experience with PHP wrapper widgets such as Kendo.

About the Company

Billtrust

Cloud-based AR automation for B2B billing

Summary: 1. What it does: Billtrust provides cloud-based accounts receivable (AR) automation, offering a suite of software for billing, invoicing, payment processing, and automated cash application to help B2B customers manage their cash flow. 2. How it works: The platform includes configurable web store storefronts for eCommerce, secure payment processing, and automated cash application within a subscription-based software service, enabling automated billing cycles, faster payments, and reconciliation of payments to invoices. 3. How it differs from competitors: It offers end-to-end AR workflow in the cloud with highly configurable eCommerce and payment capabilities tailored to multiple industries, focusing on streamlining the entire AR process from invoicing to cash posting for B2B customers. 4. Goal: To help businesses improve cash flow, reduce operating costs, and increase customer satisfaction by making AR processes more efficient and automated.

Company size
501-1,000
Company stage
IPO
Headquarters
Lawrence Township, NJ
Founded
2001

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