Fullstack/Backend Developer (API & AI Integration specialist)

This range is provided by Mission.dev. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

CA$100,000.00/yr - CA$160,000.00/yr

Direct message the job poster from Mission.dev

Talent Management - Talent Acquisition - Change management -Employee Experience - Performance Management - HR Business Partner

This is a full-time employment role with direct hiring by the client.

3 days on-site in Mile End + 60 remote work days/year.

Open to candidates based in Canada only.

Mission is a platform for hiring, vetting, and managing software development talent.

It enables our clients to connect with the world’s best talent to build mission-critical software products.

The client is building the AI-powered platform transforming how capital is raised in private markets. Venture capital and private equity firms use their technology to run digital closings, streamline investor relations, unlock insights from LP interactions, and deliver a modern investor experience.

Backed by leading VC firms, they’re a small senior team shipping fast across a modern TypeScript, monorepo, and AI-native stack.

Their Mission: To make private markets more transparent, efficient, and human.

We’re looking for a Fullstack/Backend Developer specializing in APIs and AI integrations to build the next generation of investor workflows.

You will design and implement backend services, RPC endpoints, database structures, and LLM-powered features that help fund managers understand and communicate with LPs.

You’ll work across a modern, strongly-typed monorepo environment (Node.js, TypeScript, Twirp/Protobuf, Postgres/Kysely) and collaborate closely with product and frontend teams.

You’ll have deep ownership, real product influence, and the opportunity to build an industry-defining platform from the ground up.

• Build new API endpoints and backend services in Node.js/TypeScript
• Develop AI-powered investor workflows (summarization, insights, categorization)
• Extend internal packages (RPC, utilities) across the monorepo
• Design & optimize relational database schemas and queries (Postgres/Kysely)
• Write robust unit and integration tests
• Improve API performance and scalability
• Experiment with AI/LLM integrations to unlock new product capabilities
• Collaborate with frontend, product, and infra teams

• 4+ years backend-focused engineering experience
• Experience building clean, modular, type-safe APIs
• Solid SQL + experience with relational databases
• Familiarity with monorepos (pnpm, Turborepo)
• Interest or experience in AI/LLM development
• Strong testing, code quality, and problem-solving skills
• Comfort working in a small, fast-paced, async-first senior team

• Experience with Protobuf/Twirp or gRPC
• Familiarity with SvelteKit or modern frontend frameworks
• Open-source TypeScript contributions
• Understanding of fund management, fintech, or investor workflows
• Salary: $100,000–$160,000 CAD, based on value and experience
• Meaningful early-stage equity
• Company-wide paid shutdown between Christmas and New Year
• Annual offsites with the global team

Mid-Senior level

Full-time

Engineering and Information Technology

Software Development and IT Services and IT Consulting

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