Back-End Engineer

Position: Back-End Engineer

Location: London, 4 to 5 days per week on site

Compensation: Competitive salary and equity, depending on experience

Reports to: Head of Engineering

About Navys

Navys is a venture-backed legal technology company building enterprise workflow software for private capital markets.

The platform replaces manual, email-driven legal processes with a structured system that enables funds lawyers, GPs and LPs to execute complex transactions more efficiently. Navys is focused on real legal workflows, not generic AI tools or document summarisation, and is designed to support production-grade, enterprise use cases.

Navys is building core infrastructure for how funds legal work is done, with a strong emphasis on execution, clarity and real-world impact.

Role Summary

Navys is seeking a Back-End Engineer to join the team on a full-time basis. This is a hands-on engineering role focused on building robust, scalable backend systems that power complex legal workflows and transaction management.

You will be responsible for designing and implementing core backend services, APIs and data infrastructure that form the foundation of the platform. This role requires deep technical expertise in backend architecture, strong ownership and the ability to translate complex legal workflows into efficient, reliable systems.

This is not a narrow or isolated engineering role. It requires ownership, comfort with ambiguity, and the ability to take responsibility for backend features and services from early design through to production deployment.

Responsibilities

Backend Development and API Design

• Design, build and ship scalable backend services and RESTful APIs in Python
• Architect and implement data models that support complex legal workflows and transaction orchestration
• Translate complex legal and operational requirements into efficient backend systems
• Take ownership of backend features from concept through to production release

Platform Infrastructure and Performance

• Develop and maintain cloud infrastructure with a strong focus on Azure services
• Design and implement database schemas, optimise queries and ensure data integrity
• Build resilient, performant systems capable of handling enterprise workloads
• Ensure backend services are secure, maintainable and scalable as usage grows

System Architecture and Collaboration

• Influence backend architecture decisions and help define engineering best practices as the team grows
• Work closely with the Head of Engineering, frontend engineers and product team to align technical execution with product priorities
• Collaborate with legal domain experts to understand workflow requirements and design appropriate backend solutions
• Support early customer deployments and troubleshoot production issues

Candidate Profile

Essential Requirements

• Strong proficiency in Python with experience building production-grade backend systems
• Solid experience designing and building scalable RESTful APIs and microservices
• Deep understanding of relational databases, data modelling and SQL, with PostgreSQL experience preferred
• Experience with at least one major cloud platform, with Azure strongly preferred and AWS acceptable
• Understanding of authentication, authorization and security best practices in enterprise SaaS applications
• Knowledge of containerisation technologies such as Docker
• Strong problem-solving and analytical skills with attention to system performance and reliability
• Strong communication and collaboration abilities across technical and non-technical teams
• Comfortable operating in a fast-paced, early-stage start-up environment

Desirable Requirements

• Experience with infrastructure as code such as Terraform or Bicep
• Familiarity with Azure services including Azure Functions, Azure SQL, Key Vault, Blob Storage and Service Bus
• Experience building workflow or transaction-heavy systems
• Exposure to AI or LLM-based tooling such as OpenAI, Azure AI or LangChain
• Understanding of message queues, event-driven architectures or async processing patterns
• Experience in legal tech, fintech or another highly regulated domain
• Understanding of compliance, security and resilience requirements in enterprise software systems

What Navys Offers

• Competitive salary plus meaningful equity at an early stage
• A foundational engineering role with real ownership and impact on core backend systems
• Close collaboration with engineering leadership and founders
• Opportunity to grow as the company scales

Equal Opportunity Employer

We are committed to fostering a diverse and inclusive workplace. As an equal opportunity employer, we do not discriminate on the basis of age, disability, sex, race, religion or belief, gender reassignment, marriage or civil partnership, pregnancy or maternity, or sexual orientation. All qualified applicants will receive consideration based on individual merit and business needs.