Senior Software Engineer - Python
BlackLine Systems Inc· enterprise· Computer Software· Jul 20, 2026 · 3mo agoPosted 99 days ago
Pleasanton
Hybrid
Full-time
Senior
$170K–$213K
7+ years exp
Before you apply
Ghost Signal:
Open since July 20, 2026 — 99 days, and still accepting applications.
Job description
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 Sr. Software Engineer in Test, you will play a crucial role in the success of our company by contributing to, as well as driving, high-quality releases and value-delivery to our customers. In this role, you will be automating tests for web-based, mobile applications and RESTful APIs to support our high-transaction and big-data SaaS applications. Your attention to detail, tenacity, creative problem-solving and forward thinking will directly impact the company's success, as well as the success of your peers across the organization. By following and evangelizing quality standards, as well as overall SDLC processes as they relate to quality, you will be able to affect meaningful change in the organization and help drive our culture to a quality and customer-first mentality.
You ll Get To:
Create Web application, Mobile App and API automation utilizing tools and frameworks already in place to ensure future automation coverage of all features.
Build Mobile App test automation for both IOS/Android using Appium.
Experience in testing Hybrid/Native IOS/Android Mobile Applications.
Build and add to Automation Regression Test Harness.
Experience in testing on virtual emulators using device farms.
Drive improvements and provide recommendations by using or creating tools and contributing to the automation framework already in place.
Independently identify and assess risks and develop mitigation steps and processes to be put in place for projects, while collaborating on technical designs, management of dependencies, and efficacy of valid test data to ensure successful and high-quality deliverables.
Execute Quality Engineering (QE) forensics and detailed root cause analysis of test failures, reported defects, and performance and scalability issues.
Provide technical leadership to other QE staff as the QE discipline and team grows, acting as an agent of change for a quality-first culture within the organization.
Execute on QE compliance objectives and appropriate metrics to measure success.
Assist with defining and implementing quality standards, processes, and procedures that ensure the highest quality deliverables.
Collaborate with QE, Product, and Engineering leadership, as well as other stakeholders, to ensure that all user stories, product definition, technical specifications, and acceptance criteria are clear and follow the established processes and standards.
Author high-quality test plans, test cases, and supporting documentation.
Identify gaps, issues, or other areas of concern, and proactively define, propose, and enact process and workflow improvements to mitigate such issues.
Partner with leadership, peers, and sister-teams throughout the organization to support meaningful change and adaptation, with a constant focus on improving what and how of Quality within BlackLine
What You ll Bring:
Education: Master's degree in Mathematics, Computer Science or related disciplines Technical/Specialized Knowledge, Skills, and Abilities:
7+ years of hands-on experience in Web Application, Mobile, SaaS, and RESTful API testing.
7 or more years of hands-on test automation development, with experience building a test automation suite from the ground up.
7 or more years of hands-on working experience in traditional OOP programming languages, specifically C# (with .NET core and NUnit / XUnit / MSTest).
Hands on experience with IOS and Android hybrid/native mobile applications testing and test automation using Appium/Selendroid.
Work closely with Product/UX designers to discuss and give feedback about customer perspective for UI/UX designs from QE.
Hands on experience with testing, analyzing and troubleshooting communication between mobile apps and API.
Configure CI/CD tool to run regression Appium/Selendriod automated tests.
Experience in testing integration solutions for batch, API and event driven architectures.
Experience with testing various integration patterns, styles and technologies and API gateway.
Deep understanding of both technical and non-technical requirements for enterprise SaaS at scale in the areas of system performance, scalability, latency, reliability and security.
Strong testing experience with cloud native/cloud first applications in a cloud environment such as Google Cloud, AWS and Azure
Experience with Performance test development and Continuous Integration (CI) tools
Strong ownership, pride of work, and ability to take things across the finish line.
Intermediate to advanced knowledge of SQL, including stored procedures, data models, and transactional flows is required
FinTech or Financial services domain background.
We’re Even More Excited If You Have: Good knowledge of internet security issues in software design and code.
Experience with ERP systems like MS Dynamics-365, Oracle, NetSuite, Intacct is a plus
Experience with open source tools.
Experience with public cloud architectures (Azure, ASW or GCP) and cloud native services.
Experience designing and scaling high performance systems.
Experience with container management solutions like Mesos, Kubernetes or Nomad.
Experience with API gateway, identity management, authentication, messaging platforms (e.g: Kafka, SQS, RabbitMQ), workflow orchestration tools, job scheduling and search.
FinTech or Financial services domain background.
Prior working experience in Scrum, or other Agile development methodologies, is preferred.
Experience with front-end technologies (HTML, JavaScript, CSS, JavaScript Frameworks, etc.) is a plus.
Experience with data integration and middleware software tools is a plus
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 has 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.
Salary Range:
$170,000.00-$213,000.00
Pay Transparency Statement:
Placement within this range depends upon several factors, including the applicant s prior relevant job experience, skill set, and geographic location.
In addition to base pay, BlackLine also offers short-term and long-term incentive programs, based on eligibility, along with a robust offering of benefit and wellness plans.
We are committed to pay transparency and ensuring candidates have clear information about compensation expectations. For roles that include variable incentive components such as an Incentive Compensation Plan (ICP) or On-Target Earnings (OTE), the compensation structure may follow a split model – for example, a 50/50, 70/30, or 60/40 ratio between base salary and variable incentive.
BlackLine is committed to creating an inclusive and accessible experience for all candidates. If you require a reasonable accommodation that would better enable your success during the application or interview process, please complete this form .
Accommodations:
BlackLine is committed to creating an inclusive and accessible experience for all candidates. If you require a reasonable accommodation that would better enable your success during the application or interview process, please complete this form .
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