Sr Software Engineer

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:
BlackLine SaaS is the system of interaction for finance and accounting teams and it integrates with numerous ERPs, CRMs, Payment systems, Point of Sale systems and other applications.
As a Senior Software Engineer, you will play a crucial role in building the next generation of BlackLine application. You will be driving innovation into our product suite by designing, developing, troubleshooting, maintaining, optimizing and scaling cloud-based applications and services. In addition to being a hands-on engineer, you will also lead and mentor other engineers in the team.
If you have a passion for delivering products that make a difference, are driven to make things better in all that you do and are eager to work in a collaborative agile environment where developers are dedicated to solving customer problems and innovating, we would love to talk to you.
You'll Get To:

• • Provide deep technical expertise in requirements analysis, system design, effort estimation, development, testing, and delivery of highly scalable, secure, and resilient distributed backend services.
  • Work closely with product managers, architects, and partner engineering teams to translate both explicit and implicit product needs into robust functional and technical specifications.
  • Maintain a strong sense of business value and ROI while making engineering decisions and proposing design or architectural approaches.
  • Lead and influence architecture discussions, driving technical decisions and trade-offs across technology choices, performance, extensibility, reliability, and modernization goals.
  • Estimate work scope accurately and deliver consistently against commitments.
  • Implement, refine, and enforce engineering best practices to ensure that services meet high standards for performance, security, observability, reliability, and maintainability.
  • Research, prototype, benchmark, and adopt emerging technologies-particularly in Go and Python-to evolve the backend platform and support the organization's modernization roadmap.
  • Write clean, idiomatic, testable, and maintainable code primarily in Go and Python, with an emphasis on concurrency, performance optimization, and production-readiness.
  • Contribute to the migration and modernization of existing .NET/C# services into Go/Python-based microservices or cloud-native platforms.
  • Mentor and coach engineers by providing guidance on design patterns, code quality, observability, performance optimization, and system-level thinking.
  • Identify system bottlenecks, technical debt, reliability gaps, or operational inefficiencies, and drive or advocate for continuous improvements.
  • Support release management, deployments, observability improvements, and production operations, including occasional off-hours support as needed.

What You'll Bring:
Technical / Specialized Knowledge, Skills & Abilities

• Strong hands-on experience with Go and Python, including:

• Building concurrent, performant, production-grade Go services using goroutines, channels, and Go's native concurrency model.

• Designing Python-based microservices, automation frameworks, backend workflows, or platform tools with emphasis on robustness and maintainability.

• Experience with Go module management, Python packaging, virtual environments, dependency management, and application structuring.

• Developing RESTful or gRPC APIs and distributed service components using Go or Python.

• Experience building web-scale, highly available, multi-tenant SaaS platforms with strong emphasis on backend architecture, distributed systems, and microservices.

• Experience with C# and .NET Framework / .NET Core is a plus, especially in:

• Maintaining, extending, or refactoring existing codebases.

• Supporting modernization efforts for legacy .NET/C# services transitioning into Go/Python-based systems.

• Cloud & Data Skills

• Experience with a major public cloud (AWS, Azure, or GCP) and strong understanding of cloud-native architectures, IAM, networking, and managed services.

• In-depth experience with SQL, relational database schema design, transactional flows, and query/profile optimization.

• Systems & Architecture

• Strong foundation in computer science fundamentals: data structures, algorithms, design patterns, concurrency models, and distributed systems concepts.

• Experience with one or more supporting ecosystem components:

• API gateways

• Identity and access management (OAuth2, OIDC)

• Messaging systems (Kafka, RabbitMQ)

• Workflow orchestration / job scheduling engines

• Distributed caching or search systems, etc.

• Excellent analytical, problem-solving, and system-level thinking capabilities.

• Strong written and verbal communication skills, able to articulate designs and trade-offs clearly.

• Collaborative team player with a focus on delivering value and outcomes.

• Experience working in Agile/Scrum environments.

• Passion for engineering excellence through automation, CI/CD, unit testing, and continuous improvement.

Thrive at BlackLine Because You Are Joining:

• A technology-based company with a sense of adventure and a vision for the future. Every door at BlackLine is open. Just bring your brains, your problem-solving skills, and be part of a winning team at the world's most trusted name in Finance Automation!
• A culture that is kind, open, and accepting. It's a place where people can embrace what makes them unique, and the mix of cultural backgrounds and varying interests cultivates diverse thought and perspectives.
• A culture where BlackLiner's continued growth and learning is empowered. BlackLine offers a wide variety of professional development seminars and inclusive affinity groups to celebrate and support our diversity.

BlackLine is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity or expression, race, ethnicity, age, religious creed, national origin, physical or mental disability, ancestry, color, marital status, sexual orientation, military or veteran status, status as a victim of domestic violence, sexual assault or stalking, medical condition, genetic information, or any other protected class or category recognized by applicable equal employment opportunity or other similar laws.
BlackLine recognizes that the ways we work and the workplace itself have shifted. We innovate in a workplace that optimizes a combination of virtual and in-person interactions to maximize collaboration and nurture our culture. Candidates who live within a reasonable commute to one of our offices will work in the office at least 3 days a week.