Ontra Logo

Ontra

Senior Software Engineer

Posted An Hour Ago
Remote or Hybrid
Hiring Remotely in United States
230K-280K Annually
Senior level
Remote or Hybrid
Hiring Remotely in United States
230K-280K Annually
Senior level
Build and scale AI-powered web applications using Ruby on Rails and React. Develop full-stack features, prototypes, and LLM capabilities while independently owning projects from inception through delivery. Collaborate with stakeholders and cross-functional teams, iterate rapidly based on feedback, review AI-generated code, and make sound technical decisions with minimal guidance.
The summary above was generated by AI

About Ontra
Ontra is the leader in AI-powered solutions for the private markets. Powered by industry-leading AI, data from over 2 million contracts, and a global network of legal professionals, Ontra automates critical private market workflows across the fund lifecycle. Ontra’s solutions transform unstructured data trapped in static documents into actionable intelligence, enabling firms to accelerate contracts, streamline compliance, and automate entity management. Trusted by more than 1,000 global GPs, investment banks, law firms, and advisors – including nine of the top ten PEI-ranked firms worldwide – Ontra helps firms focus on what’s important.

Our Culture
Ontra is built for people who want real ownership from day one in an environment that’s built to support it. Our customers are sophisticated, and our work reflects that. AI is engrained in how we work, and curiosity about it is part of who we are.
Ontranauts are sharp, genuinely collaborative, and invested in each other's success. They are excellent at what they do and even better to work with. That combination is rare, and we don't take it for granted. Learn more about our values.

For this job, we are currently only hiring candidates based in New York and require on-site work at our New York office three days per week. For more information on where we employ, please see below.

About the Role

Ontra is seeking a Senior Software Engineer reporting to one of our Engineering Managers.

We’re looking for someone excited to design innovative prototypes, develop intuitive user experiences, and collaborate with cross-functional teams. We're looking for someone who thrives in ambiguity: you can take a loosely defined problem, figure out the right approach, make smart trade-offs, and ship something that works well for users and the business. You’ll have practical experience with AI and LLMs, both as tools in your own workflow and in building product features.

If you are an independent, self-motivated innovator with a sense of ownership, someone who thrives in developing iterative solutions and can work either solo or collaboratively with one other engineer to deliver continuous improvements, we’d love to get to know you!

What You’ll Do

  • Build with AI: Ship AI-powered product features and use AI tools across your own workflow, from prototyping to code review.

  • Develop and Scale: Build, implement, and maintain a web-based application from the frontend to the backend using Ruby on Rails and React.

  • Ownership and Accountability: Take full responsibility for the progress and success of the project, driving key decisions and problem-solving independently or with minimal guidance.

  • Iterative Improvement: Continuously ship and improve code by seeking stakeholder feedback, responding effectively to suggestions, and implementing changes rapidly.

  • Stakeholder Engagement: Actively engage with stakeholders to understand their needs, gather insights, and incorporate feedback into the product development process.

  • Collaboration: Work closely with cross-functional teammates to align on development strategies, ensuring seamless integration of ideas and efforts in building the prototype.

What You’ll Bring

  • Experience: 5+ years as a full-stack software engineer working with MVC frameworks (e.g., Ruby on Rails, Python with Flask, Java with Spring).

  • AI Fluency: Daily use of AI coding tools is required, along with the ability to review, verify, and reject AI output and to know when not to trust it. Preferred depth includes having built LLM features in production (RAG, agents, prompting, evals).

  • Project Development: Demonstrated history of successfully building projects from inception to completion.

  • Independence: Capable of working solo or with one other engineer, showcasing a strong sense of ownership and accountability for the project.

  • Iterative Approach: Skilled in developing iteratively, incorporating stakeholder feedback to refine and improve the product continuously.


Hiring Locations

We currently hire exclusively in the locations listed below. Select jobs may have more specific location requirements due to business needs.

United States

Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Kansas, Maryland, Massachusetts, Minnesota, Nevada, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, Tennessee, Texas, Utah, Virginia, Washington

APAC

Hong Kong

EMEA

United Kingdom

Benefits Snapshot

  • 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 learning and development resources, department budgets for professional development, and a robust onboarding program

  • Various options for medical, dental, and vision insurance

Travel

Occasional travel is required for Ontra employees, including typically at least twice per year to attend team and larger group off-sites for in-person collaboration. For some roles, additional travel may be required based on the requirements of the role and business need.

Inclusivity

Ontra is committed to the full inclusion of all qualified individuals. As part of this commitment, Ontra will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact [email protected].

Personnel Privacy Notice: View here.

Note on Employment Verification: All employees hired will be required to verify identity and eligibility to work in their particular location.

Note to External Agencies: We are not accepting any blind submissions or resumes/CVs from recruitment agencies. Any candidates sent to Ontra will NOT be accepted or considered as a submission without a signed agreement in place.

Similar Jobs

Yesterday
Remote or Hybrid
140K-220K Annually
Senior level
140K-220K Annually
Senior level
Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Develop and maintain CrowdStrike’s macOS endpoint security sensor using C/C++ and Swift. Design high-performance, reliable software across operating-system subsystems including filesystems, memory, processes, and networking. Own features from design through delivery, collaborate with distributed teams, troubleshoot customer-reported issues, and contribute to major product releases. The role requires strong concurrency, performance, and low-level systems expertise, plus effective use of AI technologies to improve workflows and decision-making.
Top Skills: AICC++Endpoint SecuritymacOSMultithreadingNetworkingSwift
2 Days Ago
Remote or Hybrid
17 Locations
140K-200K Annually
Senior level
140K-200K Annually
Senior level
Information Technology • Productivity • Software • Infrastructure as a Service (IaaS)
Develop and maintain scalable Java and Kotlin backend services for NinjaOne’s SaaS backup and recovery platform. Design high-availability features supporting backup, archive, restore, and download workflows at large scale. Collaborate with globally distributed engineering teams, own architecture and design decisions, mentor engineers, optimize databases and distributed systems, and deliver reliable production software using technologies including AWS, PostgreSQL, Redis, Kafka, and REST frameworks.
Top Skills: AWSC#ETLJavaJerseyKafkaKotlinLinuxPostgresRedisRestRubySpringSQLWindows
2 Days Ago
Remote or Hybrid
17 Locations
160K-240K Annually
Senior level
160K-240K Annually
Senior level
Information Technology • Productivity • Software • Infrastructure as a Service (IaaS)
Drives performance engineering and scalability across software systems by identifying bottlenecks, optimizing code, queries, databases, and architecture, and implementing fixes. Builds performance frameworks, data-generation tools, benchmarks, and CI/CD automation using k6, JavaScript, Grafana, and InfluxDB. Establishes performance standards, investigates distributed systems and cloud environments, documents architectural decisions, and collaborates with engineering teams to improve throughput, latency, reliability, and efficiency.
Top Skills: AWSAzureBashC++Ci/CdGCPGoGrafanaInfluxdbJavaJavaScriptK6KotlinPostgresPython

What you need to know about the Boston Tech Scene

Boston is a powerhouse for technology innovation thanks to world-class research universities like MIT and Harvard and a robust pipeline of venture capital investment. Host to the first telephone call and one of the first general-purpose computers ever put into use, Boston is now a hub for biotechnology, robotics and artificial intelligence — though it’s also home to several B2B software giants. So it’s no surprise that the city consistently ranks among the greatest startup ecosystems in the world.

Key Facts About Boston Tech

  • Number of Tech Workers: 269,000; 9.4% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Thermo Fisher Scientific, Toast, Klaviyo, HubSpot, DraftKings
  • Key Industries: Artificial intelligence, biotechnology, robotics, software, aerospace
  • Funding Landscape: $15.7 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Summit Partners, Volition Capital, Bain Capital Ventures, MassVentures, Highland Capital Partners
  • Research Centers and Universities: MIT, Harvard University, Boston College, Tufts University, Boston University, Northeastern University, Smithsonian Astrophysical Observatory, National Bureau of Economic Research, Broad Institute, Lowell Center for Space Science & Technology, National Emerging Infectious Diseases Laboratories

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account