Senior Software Development Engineer II (Backend)

Lever, Inc.; United States; Remote; USD 190,000 - 215,000; Full time

Benefits offered by this job

Medical, Dental, & Vision Insurance

Parental leave (maternity & paternity)

Disability insurance

Company swag

Learning from leadership

Job summary

Filevine is hiring a senior backend engineer to build a brand-new product using .NET 8+ and a DDD-based approach. You will work with MartenDB and Wolverine to implement event-sourced domains and robust REST APIs, driving scalable, observable systems.

You will mentor engineers, collaborate with product and legal experts, and contribute to architectural decisions that shape a next-generation legal operations platform. This remote-friendly role offers a path to hybrid work in major US cities.

Qualifications

• 5+ years backend development with C#/.NET 8+
• Deep experience with Domain-Driven Design (DDD)
• Hands-on mastery of MartenDB and Wolverine
• Strong understanding of CQRS, event sourcing, and PostgreSQL performance
• Experience in legal tech, workflow automation, or regulated industries
• Familiarity with OpenTelemetry or observability platforms
• Familiarity with Svelte/TypeScript frontend
• Experience with Auth0/OktaFGA
• Excellent communication and mentorship skills
• Ability to drive high-impact initiatives to completion

Responsibilities

• Architect and implement sophisticated legal domains using Domain-Driven Design (DDD).
• Model resilient, event-sourced systems with Marten, including tenanted storage.
• Design asynchronous, idempotent message handlers using Wolverine with retries.
• Optimize PostgreSQL performance with indexing, partitioning, and query tuning.
• Own end-to-end features from domain modeling to REST API design and CI/CD.
• Promote engineering excellence with ADRs, code reviews, and test coverage.
• Mentor mid-level and junior engineers in DDD and .NET best practices.
• Collaborate with product, UX, and legal experts to translate workflows into software.
• Contribute to cross-team design discussions and decisions with empathy.

Skills

C#

.NET 8+

DDD

CQRS

Event Sourcing

MartenDB

Wolverine

PostgreSQL

OpenTelemetry

Svelte/TypeScript frontend

Tools

MartenDB

Wolverine

PostgreSQL

Job description

Filevine is a Legal AI company delivering Legal Operating Intelligence for the future of legal work. Grounded in a singular system of truth, Filevine brings together data, documents, workflows, and teams into one unified platform—where modern legal work happens with clarity and consistency.

Powered by LOIS, the Legal Operating Intelligence System, Filevine connects context across every matter to transform legal operations from reactive to proactive. LOIS reads, understands, and reasons across your data to surface insight, automate complexity, and give professionals the clarity and confidence to see more, know more, and do more. Fueled by a team of exceptional collaborators and innovators, Filevine’s rapid growth has earned AI awards and recognition from Deloitte and Inc. as one of the most innovative and fastest-growing technology companies in the country.

Role Summary:

Join a high-impact engineering team innovating on a brand-new product inside Filevine, creating mission-critical systems that redefine how justice is served—using cutting-edge .NET Critter Stack (MartenDB and Wolverine), Domain-Driven Design, and event-driven architecture to solve complex, real-world problems at scale.

Responsibilities

• Architect and implement sophisticated legal domains using Domain-Driven Design (DDD), defining bounded contexts, aggregates, domain events, and a shared ubiquitous language.
• Model resilient, event-sourced systems with Marten, leveraging multi-document sessions, projections, and tenanted document storage in PostgreSQL.
• Design and deliver asynchronous, idempotent message handlers using Wolverine, with built-in retry policies, dead-letter queues, and full observability.
• Optimize PostgreSQL performance under high-throughput workloads using indexing, partitioning, and query tuning.
• Drive end-to-end feature ownership—from domain modeling and REST API design to CI/CD automation, observability, and production monitoring.
• Establish and enforce engineering excellence through code reviews, architectural decision records (ADRs), and comprehensive test coverage (unit, integration, contract).
• Build in enough resiliency or be prepared to troubleshoot and resolve the technical issues, no matter the hour.
• Mentor mid-level and junior engineers in DDD strategic patterns, clean architecture, and modern .NET best practices.
• Partner with product, UX, and legal domain experts to translate complex workflows into intuitive, high-performance software.
• Actively shape shared domain models and architecture decisions in cross-team design syncs, sprint planning, and design document reviews.
• Clearly articulate technical trade-offs and domain models to engineers, product leaders, and stakeholders.
• Actively contribute in design discussions, sprint planning, and cross-team syncs with empathy and respect.

Qualifications

• 5+ years of backend development with expert-level C# and .NET 8+
• Production-grade mastery of Domain-Driven Design (strategic + tactical patterns)
• Deep, hands-on experience with MartenDB and Wolverine (.NET Critter Stack)
• Strong grasp of CQRS, event sourcing, and PostgreSQL performance optimization
• Experience in legal tech, workflow automation, or regulated industries
• Familiarity with OpenTelemetry or other observability platforms
• Familiarity with Svelte, TypeScript, and frontend development
• Familiarity with Auth0 and OktaFGA
• Exceptional communication—able to explain complex domain logic to non-technical stakeholders
• Growth mindset, collaborative spirit, and passion for mentorship
• Proven ability to independently drive high-impact initiatives to completion under ambitious timelines.

Compensation Information:$190,000 - 215,000

The base salary range represents the low and high end of the salary range for this position. The total compensation package for this position will be determined by each individual’s location, qualifications, education, work experience, skills and performance. We believe in the importance of pay equity - the range listed is just one component of Filevine’s total compensation package for employees. This position is also eligible for a paid time off policy, as well as a comprehensive benefits package.

Work Location Expectation:

Remote or option to be hybrid/in-office in one the following locations: San Francisco, New York, Chicago, or Salt Lake City

Cool Company Benefits:

• A dynamic, rapidly growing company, focused on helping organizations thrive
• Medical, Dental, & Vision Insurance (for full-time employees)
• Competitive & Fair Pay
• Maternity & paternity leave (for full-time employees)
• Short & long-term disability
• Opportunity to learn from a dedicated leadership team
• Top-of-the-line company swag

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