Senior Software Engineer - Fullstack

Get to Know Us: It’s fun to work in a company where people truly believe in what they’re doing!

At BlackLine, we’re committed to bringing passion and customer focus to the business of enterprise applications.

Since being founded in 2001, BlackLine has become a leading provider of cloud software that automates and controls the entire financial close process. Our vision is to modernize the finance and accounting function to enable greater operational effectiveness and agility, and we are committed to delivering innovative solutions and services to empower accounting and finance leaders around the world to achieve Modern Finance.

Being a best-in-class SaaS Company, we understand that bringing in new ideas and innovative technology is mission critical. At BlackLine we are always working with new, cutting edge technology that encourages our teams to learn something new and expand their creativity and technical skillset that will accelerate their careers.

Work, Play and Grow at BlackLine!

Make Your Mark: We’re not looking for someone who checks boxes; we’re looking for someone who takes pride in their craft, owns their work end-to-end, and genuinely cares about the customers using what they build.

You’ll be trusted, heard, and challenged to do the best work of your career.

If that sounds like you, we’d love to meet you! Role Overview

• We are seeking a Senior Full Stack Engineer with an AI‑first mindset and a strong passion for solving complex technical and business problems, combining deep backend systems expertise with strong frontend engineering capabilities to design, build, and operate scalable, secure, and high‑performing SaaS applications.
• This role requires end‑to‑end ownership across the technology stack from intuitive UX/UI components to distributed backend services while embedding AI‑driven capabilities such as intelligent automation, data‑informed experiences, and AI‑assisted workflows into core product functionality, influencing system architecture, engineering standards, and modernization.

You’ll Get To: Responsibilities Full Stack Design & Delivery

• Provide technical leadership across frontend and backend development, including requirements analysis, system design, effort estimation, implementation, testing, and delivery.
• Design, develop, test, optimize, scale, maintain, and evolve user-facing UI components and backend services to deliver high-quality features to customers.
• Translate explicit and implicit product requirements into clear functional and technical specifications, architecture diagrams, and test plans.
• Review code across the stack and provide constructive guidance to ensure quality, consistency, and maintainability.

Backend Engineering

• Design and build highly scalable, secure, and resilient distributed backend services using Go and Python, with a strong focus on concurrency, performance, and production readiness.
• Develop and maintain RESTful APIs, microservices, backend workflows, and platform services.
• Drive the modernization and migration of legacy .NET/C# services into Go/Python-based microservices or cloud-native platforms.

AI‑First Engineering

• Proficiency using AI-assisted development tools (e.g., coding copilots, intelligent IDEs, test generation, code review assistants, and documentation tools) to improve developer productivity, code quality, and delivery speed.
• Experience designing, integrating, or consuming AI-powered services or agents within full stack applications.
• Capability to evaluate emerging AI tools and frameworks, benchmark their impact, and recommend practical adoption paths aligned with business outcomes and engineering standards.
• Comfort collaborating with product, design, and platform teams to translate AI capabilities into real customer value, not just experimental features.

What You’ll Bring: Experience & Education Technical / Specialized Knowledge, Skills & Abilities

• BS/MS in Computer Science or equivalent practical experience.
• 6+ years of professional software engineering experience, including significant work across both frontend and backend systems.
• 3+ years of experience building highly optimized web applications and/or SaaS platforms.

Backend Technical Skills

• Strong hands-on experience with Go or Python.
• Experience with Go modules, Python packaging, dependency management, and service structuring. Solid experience with SQL and re…