Senior Backend Engineer
WalletConnect, Inc.
full-time
Posted on:
Location Type: Remote
Location: United Kingdom
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Job Level
About the role
- Design, build, and maintain backend services across the WalletConnect Pay platform — payment flows, APIs, data pipelines, and internal tooling.
- Make sound architectural decisions for the services you own: API design, data modelling, error handling, and system boundaries.
- Write technical design documents before major implementation work and participate in architectural reviews.
- Ship production-quality code with strong testing, clear documentation, and attention to edge cases.
- Own your services end-to-end: implementation, testing, deployment, monitoring, and operational support.
- Contribute infrastructure using AWS and Terraform. We don’t have a dedicated infra function, so engineers own their infra.
- Build observability into everything you ship — logging, metrics, tracing, and alerting that meet the reliability bar of a production payment system.
- Respond to and learn from production incidents, driving improvements to system resilience.
- Collaborate with cross-functional stakeholders including Product, Design, Ops, Finance, Legal, and BD to turn requirements into clean implementations.
- Participate in code review culture with AI-assisted development workflows, including automated agent reviews on PRs.
- Contribute to engineering standards, documentation, and team processes that help the Pay team scale.
Requirements
- Senior-level backend engineering experience - you’ve designed, shipped, and operated production services with real users and real consequences.
- Strong API and system design skills - you can make sound architectural decisions in ambiguous problem spaces and reason clearly about trade-offs.
- Production experience with cloud infrastructure (AWS preferred), comfortable working with managed services in a cloud-native environment.
- Comfortable owning infrastructure via Terraform or equivalent, you deploy and manage what you build.
- Ability to translate business requirements from non-engineering stakeholders into correct, maintainable implementations.
- Strong written and verbal communication, you write clear technical documents, reason about trade-offs with non-engineers, and work effectively in an async, remote team.
- Uses AI tools effectively in day-to-day engineering. We expect AI-assisted coding combined with strong human review as a core part of how we work.
- **Nice-to-Haves**
- Rust experience or strong systems-language background with willingness to ramp quickly (AI-assisted).
- Experience with payment systems or financial infrastructure, transaction lifecycles, settlement, reconciliation, fees, FX.
- Experience building merchant-facing or developer-facing APIs and tooling.
- Exposure to data transformation, reporting pipelines, or internal business systems.
- Crypto/Web3 familiarity. Understanding of wallets, tokens, chains, stablecoins, or on-chain settlement patterns.
Benefits
- Fully remote position with a budget for your home office or work environment.
- Regular team offsites to incredible locations around the world.
- Opportunities to travel to conferences and community events.
- Generous PTO and parental leave.
- Meaningful Learning & Development budget.
- Competitive compensation package including salary, equity, and potentially tokens.
- Healthcare coverage for US-based team members.
- The chance to build at the forefront of onchain payments with one of the most recognised companies in Web3.
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
backend engineeringAPI designsystem designcloud infrastructureTerraformproduction-quality codedata modelingobservabilityAI-assisted developmentRust
Soft Skills
communicationcollaborationproblem-solvingtechnical documentationtrade-off reasoningasync teamworkownershipresilience improvementcross-functional collaborationcode review