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Node JS / NestJS Engineer (Backend)

Markham, ON
On-site
Posted Sep 18, 2026
1 position

Opens an external site

Employment type: Contract
Experience level: Senior · 5+ years
Apply by: Oct 15, 2026
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Develop high-performance APIs and backend services using NestJS, Java, and .NET for a financial client's technician portal. The role involves integrating third-party logistics APIs and challenging existing architectures to propose innovative improvements.

Job details

Would You Like a Senior Backend Developer Who Can Build High-Performance APIs and Challenge Existing Architectures? Apply Now! Working with one of our top financial clients, this role calls for a Node JS / NestJS Engineer (Backend). This position involves developing backend capabilities and APIs for a key technician portal, utilizing Azure-based NestJS architecture and integrating with Java/.NET environments. The successful candidate will play a critical role in enabling parts availability search and express delivery functionality, contributing to a high-impact project with phased financial approval. Responsibilities Develop robust APIs and backend services using NestJS, Java, and .NET Work with existing RDBMS databases and server connections Integrate backend systems with third-party logistics APIs and platforms Build scalable, high-performance solutions with messaging and event-driven architecture Review and challenge current architecture, proposing innovative improvements Collaborate with cross-functional teams to ensure seamless integration Support phases of the project, including testing and deployment Demonstrate a proactive and solution-oriented approach in all tasks Desired Skill-Set Extensive experience with NestJS framework Strong proficiency in Java and C#/.NET development Solid understanding of RDBMS systems Proficiency with Azure Cloud; AWS experience/certification a plus Expertise in API development and microservices architecture Knowledge of messaging and event-driven architectures Familiarity with SOLID principles and software architecture design Ability to challenge existing solutions and propose effective alternatives Strong problem-solving and proactive communication skills Nice to Have Azure certification or experience with AWS cloud services Familiarity with integrating third-party logistics APIs Experience in building scalable API solutions within a fast-paced environment BeachHead is an equal opportunity agency and employer. We advocate for our candidates and welcome applicants regardless of race, color, religion, national origin, sex, age, or physical or mental disability. BeachHead or our clients may use technology-enabled tools, including automation and artificial intelligence (AI), to support parts of the recruitment process such as resume screening, application management, and candidate matching. These tools assist our recruiters and our clients, and do not replace human decision-making. This job posting represents a current or anticipated vacancy. The position may be filled at any time, and the posting may be removed without notice once the role has been filled. Privacy Policy

What you’ll do

Requirements

Candidates must have extensive experience with NestJS, Java, and .NET, along with proficiency in Azure Cloud and RDBMS. Expertise in microservices, event-driven architecture, and SOLID principles is required.