---
title: 'Senior Software Engineer at Billtrust US Careers'
canonical: 'https://feeny.ai/job/senior-software-engineer-billtrust-us-careers-united-states-rp98wkfbgvfz'
type: 'job'
last_seen: '2026-09-13'
---

# Senior Software Engineer at Billtrust US Careers

- **Company:** Billtrust US Careers
- **Location:** United States
- **Work type:** remote
- **Posted:** 2026-08-07
- **Last confirmed live:** 2026-09-13
- **Apply:** https://www.billtrust.com/careers/job-openings/?gh_jid=7826842003

## Job description

## Who We Are

Finance leaders choose Billtrust to get paid faster, control costs, and maximize customer satisfaction. As the leader in B2B accounts receivable workflow and payment software, we provide the world’s leading brands with AI-powered solutions across the full AR lifecycle—from invoice presentment and payment processing to cash application and collections. With over 2,600 global customers, more than $1 trillion in invoice dollars processed, and a proprietary network of 13 million buyers, Billtrust delivers business value through deep industry expertise and a culture relentlessly focused on meaningful customer outcomes.

We’re an AI-first company, not just in what we build for our customers, but in how we work. Across every function, our teams use AI tools daily to work faster, make better decisions, and deliver higher-quality outcomes. We hire exceptional people, give them cutting-edge AI capabilities, and measure success by the impact they create. If you want to do the best work of your career at the frontier of AI and fintech, Billtrust is the place to do it.

## Our Values

Customers

We relentlessly increase value for customer and do the right thing for them.

Action

We make ‘thoughtfully fast’ decisions, act quickly, cut through red tape, deliver progress not perfection, take ownership and accountability.

## Team Spirit

We put the team ahead of ourselves, foster trust and respect, collaborate with passion, despise toxic politics, value our differences, and celebrate together.

Innovation

We challenge the status quo, experiment thoughtfully, and are novel and brilliant in what we create.

Excellence

We love to win, but we hate losing even more. We aspire to be the best and take pride in our work. When we fall short, we own it and come back stronger.

## About the Role

The Sr. Software Engineer is a critical role responsible for designing solutions and delivering complex features across our product platforms. You will leverage AI tools and co-worker agents such as Claude Code to specify, implement, validate, deploy, and support features end-to-end, focusing your expertise on architectural judgment, code quality, and mentorship.

As a senior member of a domain-aligned cohort, this position contributes deep expertise to the cohort’s product domain and interfaces with the Engineering Manager, Product Manager, and fellow cohort members to deliver scalable SaaS products with high velocity. You’ll drive the evolution of AI-assisted development practices, mentor engineers within the cohort on effective AI tool usage, and share knowledge across cohorts.

## What You’ll Do

Specification & Technical Collaboration

- Own end-to-end specification quality for complex features, ensuring specs are comprehensive, unambiguous, and address all edge cases and non-functional requirements
- Collaborate with the Product Manager to translate complex product requirements into detailed technical specifications
- Lead technical decisions and contribute to domain expertise within your cohort
- Other duties as assigned.

AI-Assisted Implementation & Quality

- Lead AI-assisted implementation for complex features, using AI coding tools such as Claude Code to generate implementations from specifications
- Review AI-generated code and peer contributions for correctness, security, performance, and architectural alignment
- Validate AI-generated tests and ensure comprehensive test coverage for complex scenarios
- Drive improvements to AI-assisted development practices within your cohort, including spec templates, prompt patterns, and validation workflows

Software Design, Delivery & Mentorship

- Design performant software with a DevOps mindset that will scale as our volumes increase, and design and implement REST APIs following established patterns
- Support and maintain both UI and backend services within your cohort’s domain
- Mentor engineers within your cohort on effective AI tool usage, spec writing techniques, and code review practices, and share knowledge and experience across your cohort and with other cohorts

## What You’ll Bring

Required Skills:

- 5+ years of relevant software engineering experience designing and implementing scalable SaaS software
- Bachelor’s degree in Computer Science (or equivalent experience), along with a firm understanding of data structures and scalable software design
- Strong ability to write code in C#, C++, PHP, Java, Node.js or a similar high-level language
- Proven ability to code/support HTML5, CSS/Sass, Angular, React, TypeScript/JavaScript, and other web technologies, with the ability to design and implement REST APIs
- Strong understanding of SQL and relational databases, such as SQL Server or MySQL
- Demonstrated experience working with AI coding assistants (Claude Code, Codex, Cursor, or similar), including strong code review skills to validate correctness and identify issues in AI-generated and human-written code
- Strong collaboration and communication skills, with experience mentoring engineers and working closely with Product Managers, cohort members, and cross-functional teams
- Well-honed skills in source control management using Git or similar

Preferred Skills:

- Experience with spec-driven, agentic AI workflows where engineers delegate autonomous tasks to AI tools and provide guidance and oversight
- Knowledge of NoSQL data stores, such as MongoDB or DynamoDB, and experience with AWS, Azure, or a similar cloud platform
- Understanding of testable application design principles
- Experience leading development process improvements or workflow optimization, with a track record of driving adoption of new tools or practices across teams

The expected base salary range for this position is $129,000 - $172,000 annually.

Compensation may vary depending on several factors, including a candidate’s qualifications, skills, experience, competencies, and geographic location. Some roles may qualify for extra incentives like equity, commissions, or other variable performance-related bonuses. Further details will be provided by our Talent Acquisition team during the interview process.

## What You’ll Get

At Billtrust, we believe your total rewards should reflect the impact you make. Our benefits package includes comprehensive health coverage, competitive retirement, generous PTO and parental leave, flexible work options, and meaningful investment in your professional development. We’re building something special and we want you to feel supported while doing it.

At Billtrust, we value an equitable and inclusive work environment and strive to build and foster diverse teams. Even if your work experience doesn’t align exactly with the position requirements, we’d still love to hear from you. You may just be the right candidate for this or other roles.

We are committed to building a team that represents a variety of diverse backgrounds, perspectives, and skills. We are proud to be an equal opportunity workplace that celebrates and supports diversity and inclusion. We make all employment and related decisions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status, disability status, age, or any other status protected by law.

## About Billtrust US Careers

## Company Overview
- **One-liner**: Billtrust provides B2B accounts receivable automation and order-to-cash software to help businesses accelerate cash flow and improve financial processes.
- **Entity Type**: Private (acquired by EQT in 2021)
- **Headquarters**: Lawrenceville, New Jersey, USA
- **Founded**: 2001
- **Founders**: Not publicly available

## Core Business
- **Primary industry/industries**: B2B Fintech, Accounts Receivable Automation, Order-to-Cash Software
- **Target customers**: B2B companies of all sizes (SMB to Enterprise) across 40+ industries
- **Mission or purpose statement**: “Develop solutions that dramatically improve financial processes, deliver transformative customer experiences, and provide insights to enable faster, better decisions—all to create raving fans and long-term loyalty.” [billtrust.com/careers]

## Products & Services
- **Billtrust AR Automation Platform**: An integrated suite for invoicing, payment processing, cash application, and credit management. Type: SaaS
- **Supplier-Driven Payments Network**: Enables electronic invoice delivery into buyer AP portals and automated payment acceptance. Type: Network/SaaS
- **Automated Credit Application Process**: Streamlines credit evaluations for new customers. Type: SaaS feature

## Market Standing
- **Valuation/Market Cap**: Not publicly available (last known valuation at time of EQT acquisition in 2021 was approximately $1.7 billion, but conflicting public reports may vary; current private status means no recent published valuation)
- **Key Metric**: Estimated 900 employees globally (as of latest data) [builtin.com]
- **Notable Investors/Partners**: EQT (private equity owner); customer base spans industries with “double digit market share” in many segments [builtin.com]
- **Growth Signals**: Remote-first global workforce with offices in Lawrenceville (HQ), Nashville, Kraków, and Hyderabad; continuous hiring across multiple roles [billtrust.com/careers/job-openings]; active product expansion into AI-powered automation

## Competitive Advantages
- **Deep AR expertise**: Over 20 years focused solely on accounts receivable automation, providing unmatched domain knowledge.
- **Integrated order-to-cash suite**: End-to-end solution from invoice delivery to cash application, reducing manual handoffs.
- **High customer adoption and retention**: “Double digit market share” in many verticals indicates strong moat and switching costs. [builtin.com]
- **AI-powered intelligence**: Machine learning for cash matching and credit decisions improves efficiency.

## Strategic Focus
- **AI and automation**: Continuing to embed AI into cash application, credit processes, and invoice delivery to drive higher automation rates.
- **Global expansion**: Scaling remote workforce and offices in Europe (Kraków) and Asia (Hyderabad) to serve customers worldwide.
- **Supplier payments network**: Deepening integration with buyer AP portals to capture more transaction volume.

## Why Work Here
- **Work model**: Remote-first with optional office use; some roles are hybrid (3 days/week in-office). [builtin.com]
- **Culture & values**: Emphasizes innovation, accountability, work-life balance, team spirit, and diversity & inclusion. [billtrust.com/careers]
- **Perks and benefits**: Open PTO, birthday off, Summer Flex Fridays, generous parental leave, fertility and daycare benefits, 401k match, comprehensive medical plans, sabbatical program, paid volunteer time, company donation matching. [billtrust.com/careers]
- **DEI Commitment**: Multiple Employee Resource Groups (ERGs) including WEtrust (Women’s Empowerment), BIGtrust (Black Inclusion Group), Pridetrust, Latinxtrust, APItrust, Familytrust, Honortrust, and Military/Veterans groups. 2025 Leader in LGBTQ+ Workplace Inclusion. [billtrust.com/about/diversity-inclusion]
- **Career development**: Individual contributor and leadership tracks, continuous learning opportunities, job training and conferences. [builtin.com]

## Sources
1. [billtrust.com/careers](https://www.billtrust.com/careers)
2. [billtrust.com/careers/job-openings](https://www.billtrust.com/careers/job-openings)
3. [builtin.com/company/billtrust](https://builtin.com/company/billtrust)
4. [billtrust.com/](https://www.billtrust.com/)
5. [billtrust.com/about/diversity-inclusion](https://www.billtrust.com/about/diversity-inclusion)

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