Senior Backend Engineer

Overview Join to apply for the Senior Backend Engineer role at Nexl .
Nexl is the fast-growing LegalTech startup on a mission to elevate the business of law. Our platform, purpose-built for law firms, brings together CRM, collaboration, and client intelligence in one solution — empowering lawyers, marketers, and BD teams to deepen relationships, accelerate growth, and win more high-value work. We're backed by top global VCs, recognised as one of Australia's fastest-growing tech companies, and expanding rapidly across Australia, the US, LATAM, and Europe. And we're just getting started.
The Opportunity
We're looking for a Senior Backend Engineer to join our growing Product & Engineering team, working within one of our cross-functional squads to scale the core services and architecture that power our platform.
This is a high-impact role where you'll take ownership of backend execution, bring technical depth, and deliver reliable systems that make a difference for our users. Each squad has ownership of parts of our platform, and you'll collaborate closely with product managers, frontend engineers, and other backend specialists to deliver end-to-end solutions.
We're looking for someone who thrives on accountability, loves solving complex technical problems, and brings genuine craft to their engineering.
Frontend: React & TypeScript
Backend: Ruby on Rails with GraphQL, and Python with WebSockets & Protobuf
What You'll Own & Do Design and develop backend services and APIs in Ruby on Rails and Python
Architect scalable, secure, and performant systems that integrate seamlessly with our frontend apps
Optimise databases, APIs, and infrastructure for speed, reliability, and resilience at scale
Troubleshoot production issues, deliver long-term fixes, and drive continuous improvement
Champion backend best practices in testing, monitoring, and security
Collaborate within your squad (Product, Frontend, Backend, Design) to deliver complete solutions with real customer impact
Mentor and guide junior engineers, raising the bar for backend craftsmanship
Explore and introduce new frameworks, tools, and approaches that bring value to the team
What We\'re Looking For Proven backend development experience in Ruby on Rails or Python (bonus if you've worked with both).
Skilled in API design, database management, and backend performance optimisation.
Strong collaboration skills across product and engineering functions.
Passion for building scalable, maintainable systems.
Familiarity with unit testing, integration testing, and deployment automation.
Bonus if you have previous experience in B2B SaaS, legaltech, or professional services.
Life at Nexl Remote-first culture – Our talented teams work from all over the world, with access to co-working spaces if that suits you better
In-person connection – We make time for team socials and off-sites, because face-to-face moments still matter to us
Transparent by default – Fortnightly all-hands to keep us engaged with company updates, project spotlights, business metrics, wins, and learnings
Modern tools & tech – We embrace AI and automation to help you work smarter, stay focused, and do your best work
Work-life flexibility you won't find elsewhere – We trust you to manage your time, so you can work when and where you're at your best
Employee Stock Option Plan – Everyone shares in the upside. When we grow, you grow
High-growth environment – Autonomy, purpose, and continuous learning come standard here. You\'ll be surrounded by great people doing great work
Values-led culture – We're guided by clear principles and values that shape how we work, make decisions, and support each other every day
Committed to Care: We genuinely care about our work and the people we serve.
Human at the Core: Relationships and empathy guide everything we do.
Different with Purpose: We're not afraid to stand out. We innovate boldly, always with intention.
Legal Through and Through: We're proud to serve, and help reshape, the legal industry.
Even if you don't tick every box, if you're excited about our mission — we'd love to hear from you.
Seniority level Mid-Senior level
Employment type Full-time
Job function Software Development
Note: Referrals increase your chances of interviewing at Nexl. Australian location info and role postings are for context.
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