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About NextLink Labs NextLink Labs is a fast growing technology firm focused on helping companies build, scale, and secure their software applications and organizations. We believe that in order for companies, teams, and products to succeed, technology must be utilized effectively and securely. We pride ourselves in helping our clients win in their respective industries.

As a remote-first company with team members spread out all across the country, NextLink Labs continuously works to ensure our work environment is comfortable and collaborative. We also aim to maintain an inclusive work environment where everyone can thrive professionally and live full lives outside of work.

Position Summary NextLink Labs is seeking a motivated Senior Rust Developer with a strong background in systems programming and distributed services to join our Custom Software Development consulting team. A successful person in this role will be tasked with building and maintaining scalable backend services and APIs for our clients and will be able to seamlessly integrate with our client’s engineering teams.

As a Senior Rust Developer, you will design and implement robust backend systems using gRPC, event sourcing, and actor-based concurrency while making critical architecture decisions to rapidly deliver features for an enterprise application built on Clean Architecture and CQRS patterns. If you are a self-motivated engineer looking to take ownership of your work, we invite you to join our team at NextLink Labs.

Your Responsibilities

Design, develop, and maintain scalable backend services using Rust





Work with other engineers to architect and implement modular, well-structured solutions across workspace crates (model, domain, data, service)

Build gRPC services for inter-service communication

Build and optimize data access layers for relational, time-series and graph databases

Work in an agile team environment with daily stand ups, and weekly agile meetings

Engage in code reviews of your teammates' work

Communicate directly with the client to give demonstrations and receive feedback

Contribute to observability and monitoring using Tracing and OpenTelemetry

Required Qualifications

5+ years of experience building backend services, with at least 2-3yrs building production systems in Rust

Strong understanding of Clean Architecture, CQRS, Event Sourcing, and actor-based concurrency patterns

Experience designing and implementing gRPC APIs; Familiarity with Tonic is a plus

Proficiency with relational, time-series and graph databases - experience with TimescaleDB, Neo4j preferred

Strong testing practices including unit and integration testing - Familiarity with BDD frameworks like Cucumber is a plus





Understanding of security best practices including JWT-based authentication and authorization

Understanding of fundamental design principles behind scalable and distributed systems

Nice to Have

Familiarity with Tokio or an equivalent async runtime

Experience with async query tool kits such as SQLx

Experience with distributed application runtimes such as Dapr or Restate

Experience with HTTP frameworks such as Axum including WebSocket support

Familiarity with event streaming platforms such as Apache Kafka

Experience deploying and operating services on Kubernetes — familiarity with AKS, Grafana, and Azure Monitor/Application Insights is a plus

Strong understanding of observability principles - experience with OpenTelemetry preferred

Familiarity with one other backend language, such as C#/.NET, Golang, or Python

Ability to work independently and take ownership across a variety of software engagements

Solid debugging, root cause analysis, and problem-solving abilities

Why NextLink Labs

We’re a technical consulting firm that values clarity, ownership, and outcomes

Remote-first culture, flexible work schedule, and autonomy to do your best work.

Responsibility and autonomy at a growing company

The opportunity to build something big and exciting

Visa Sponsorship

At this time, we are unable to provide visa sponsorship or take over sponsorship for existing visas. Candidates must be authorized to work in the Colombia without the need for current or future sponsorship.

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Apply on Kit Job: kitjob.ca/job/2g9cf4

📌 Senior Rust Engineer — Colombia (Toronto)
🏢 NextLink Labs
📍 Toronto