Senior Software Engineer jobs in United States
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Ontra · 5 hours ago

Senior Software Engineer

Ontra is the leader in AI-powered solutions for the private markets, seeking a Senior Full Stack Software Engineer to join their team. The role involves designing innovative prototypes, developing user experiences, and collaborating with cross-functional teams to build cutting-edge products.

Artificial Intelligence (AI)Document ManagementLegalLegal TechSoftware
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Growth Opportunities
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H1B Sponsor Likelynote

Responsibilities

Build, implement, and maintain a web-based application from the frontend to the backend using Ruby on Rails and React.JS
Take full responsibility for the progress and success of the project, driving key decisions and problem-solving independently or with minimal guidance
Continuously ship and improve code by seeking stakeholder feedback, responding effectively to suggestions, and implementing changes rapidly
Actively engage with stakeholders to understand their needs, gather insights, and incorporate feedback into the product development process
Work closely with cross-functional teammates to align on development strategies, ensuring seamless integration of features

Qualification

Ruby on RailsReact.JSMVC frameworksLLM FamiliarityProject DevelopmentIndependenceIterative ApproachStakeholder EngagementCollaboration

Required

5+ years as a full-stack software engineer working with MVC frameworks (e.g., Ruby on Rails, Python with Flask, Java with Spring)
Demonstrated history of successfully building projects from inception to completion
Capable of working solo or with one other engineer, showcasing a strong sense of ownership and accountability for the project
Skilled in developing iteratively, incorporating stakeholder feedback to refine and improve the product continuously
Proficiency with coding assistant LLMs such as CoPilot or Cursor. Experience in integrating LLMs into products for data extraction and summarization to solve business needs is a plus

Benefits

Remote-first working policy, with office hubs in SF, NYC, Santa Barbara, and London
Twice yearly team offsites for in-person collaboration
Paid flexible time off policy
Paid parental leave and benefits
Employer-supported retirement contributions, varying by country
Monthly phone and internet reimbursement
Company-sponsored LinkedIn Learning accounts, department budgets for professional development, and robust onboarding program
Various options for medical, dental, and vision insurance

Company

Ontra automates legal workflows with AI for contract and compliance management.

H1B Sponsorship

Ontra has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (3)
2024 (3)
2023 (4)
2022 (2)
2021 (4)

Funding

Current Stage
Growth Stage
Total Funding
$310M
Key Investors
Silicon Valley BankBlackstone GroupBattery Ventures
2025-06-10Debt Financing· $70M
2021-10-27Series B· $200M
2019-01-01Series A· $40M

Leadership Team

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Troy Pospisil
Founder / CEO
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Eric Hawkins
Chief Technology Officer
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Company data provided by crunchbase