Intermediate Frontend Engineer

ANVIL

7d•$105,000 - $145,000•Hybrid

About The Position

As an Intermediate Frontend Engineer, you will play a critical role in building and maintaining the user-facing interfaces of our mission-critical software. You will implement and maintain reusable React components, develop responsive and accessible UIs, integrate with backend APIs, and uphold frontend quality through robust testing practices. You will work closely with product owners, designers, and backend engineers to translate requirements into performant and maintainable user experiences. In this role, you will contribute to frontend decisions, champion component design practices, and ensure the reliability of your work through unit, integration, and end-to-end testing (using libraries and frameworks such as React Testing Library and Playwright). We are looking for a collaborative and detail-oriented engineer who takes pride in clean, well-tested code and thrives in environments where precision and reliability are not just best practices; they are mission-critical imperatives. This is a full-time position based in Ottawa / Remote. Eligible candidates must either possess or be eligible to obtain a Government of Canada Top Secret security clearance.

Requirements

Eligible for Government of Canada Top Secret security clearance
3+ of hands-on experience building production applications with React
3+ years of experience with modern CSS (CSS Modules, Tailwind, or equivalent), including responsive and accessible design
Demonstrated experience with component design — building reusable, composable, and well-documented UI components
Proven experience integrating with REST APIs for CRUD operations within React applications
Working experience with React Testing Library for unit and integration testing
Working experience with Playwright for end-to-end testing
Strong understanding of React fundamentals, including hooks, state management, and component lifecycle
Solid grasp of frontend performance considerations and best practices
Ability to write clean, maintainable, and well-documented code
Excellent verbal and written communication skills, with the ability to clearly articulate technical decisions to both technical and non-technical audiences
Demonstrated ability to collaborate across design, backend, and product teams
Strong organizational skills with the ability to manage multiple feature workstreams simultaneously
Proven ability to troubleshoot complex UI and integration issues and drive efficient resolution

Nice To Haves

Experience with knowledge management systems, case management systems, or relevant defence industry applications
Familiarity with Agile/Scrum methodologies and sprint-based development cycles
Experience working in or closely with defence, public safety, or national security organizations
Familiarity with state management libraries (Redux, Zustand)

Responsibilities

Partner with product and design teams to translate requirements and wireframes into functional, polished features
Implement responsive, accessible UIs that meet both user needs and organizational standards
Contribute to and uphold frontend designs and coding standards across the engineering team
Integrate frontend features with backend APIs to support full workflow operations
Handle asynchronous data flows, loading states, and error handling with care and consistency
Collaborate with backend engineers to define and refine API contracts
Write unit tests using React Testing Library to validate component behaviour and business logic
Contribute to integration and end-to-end test suites using Playwright to ensure critical user workflows remain reliable
Participate in code reviews, providing and incorporating constructive feedback to uphold code quality
Identify and resolve frontend defects early in the development cycle, documenting issues with clear reproduction steps and impact assessments
Participate actively in sprint planning, daily standups, sprint reviews, and retrospectives
Review and provide feedback on requirements, design documents, and API specifications
Communicate development progress and technical blockers to stakeholders clearly and proactively
Work closely with cross-functional teams to maintain and exceed quality and delivery standards