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.
Skills Required
- 5+ years of relevant software engineering experience designing and implementing scalable SaaS software
- Bachelor's degree in Computer Science or equivalent experience
- Firm understanding of data structures and scalable software design
- Proficiency writing code in C#, C++, PHP, Java, Node.js or a similar high-level language
- Experience coding/supporting HTML5, CSS/Sass, Angular, React, TypeScript/JavaScript and designing REST APIs
- Strong understanding of SQL and relational databases such as SQL Server or MySQL
- Demonstrated experience with AI coding assistants (Claude Code, Codex, Cursor, or similar) and code review skills
- Strong collaboration, communication, and mentoring experience working with Product Managers and cross-functional teams
- Proficiency with source control management using Git or similar
- Ability to design performant software with a DevOps mindset and ensure comprehensive test coverage
- Experience with spec-driven, agentic AI workflows where engineers delegate autonomous tasks to AI tools
- Knowledge of NoSQL data stores such as MongoDB or DynamoDB and experience with AWS, Azure, or similar cloud platforms
- Understanding of testable application design principles
- Experience leading development process improvements or workflow optimization
Billtrust Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Billtrust and has not been reviewed or approved by Billtrust.
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Leave & Time Off Breadth — Open/unlimited PTO, company recharge days, paid holidays, volunteer time, parental leave, and a tenure-based sabbatical create broad flexibility for time away. Many roles are fully remote with flexible schedules, supporting actual time-off access.
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Healthcare Strength — Comprehensive medical coverage is emphasized, with low-cost or fully covered employee premiums alongside dental, vision, life, and disability insurance. Wellness programs, fitness stipends, and onsite gym access further bolster health support.
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Strong & Reliable Incentives — Performance bonuses are described as regularly achieved, with uncapped earning potential in some functions. Incentive structures complement base pay and are cited as rewarding for strong performers.
Billtrust Insights
What We Do
Billtrust makes it easier for B2B companies to get paid. We’ve been the leading innovator in AR automation for nearly two decades and continue accelerating. Our customers span 40+ industries and we lead with double digit market share in many of the industries we serve. We provide automated order-to-cash solutions that meet diverse buyer requirements and speed cash application through tailored invoice delivery, secure multi-channel payment enablement and intelligent matching and payment posting. Our unparalleled expertise in AR informs everything that we do. No one is better positioned to understand and solve for the needs of every individual AR department. We innovate by pushing automation into new areas like our supplier-driven payments network, automated invoice delivery into AP portals and our automated credit application process. We drive results by helping our customers increase electronic adoption of invoices and payments and widening technology bottlenecks. Amazing customer experiences are possible with our connected solutions. We give our customers the power to conduct business unencumbered by manual interactions. For more information, visit us at billtrust.com.
Why Work With Us
We value innovation, accountability, work-life balance, and strong culture driven by the quality and the diversity of the people we hire. Our culture is driven by our values: Customers, Action, Team Spirit, Innovation, and Excellence.
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