Senior Go Engineer building Zelle and Fedwire payment capabilities for Form3’s cloud - native payments platform. Designing resilient, regulated, high - volume payment infrastructure from Ontario, Canada.
About the role
- Senior Developer at Fresche Solutions specializing in C#, .NET, and SQL. Designing, building, and optimizing data-driven application solutions with complex queries and backend systems.
Responsibilities
- Design and develop backend solutions using C# and .NET
- Write, optimize, and maintain complex SQL queries, stored procedures, and data models
- Analyze and improve database performance, indexing, and query execution plans
- Work with large datasets to support reporting, integrations, and business logic
- Collaborate with clients to gather requirements and translate them into technical solutions
- Troubleshoot data-related issues and ensure data integrity and accuracy
- Contribute to system architecture with a strong focus on data flow and database design
Requirements
- 5+ years of experience in software development (open to strong 3+ year candidates)
- Some front-end experience (React, Angular, etc.) is preferred but not required
- Strong hands-on SQL expertise (critical requirement): Writing complex queries (joins, subqueries, CTEs), Performance tuning and optimization, Stored procedures and database design
- Strong proficiency in: C# .NET
- Experience working with data-heavy applications or systems
- Strong communication skills with client-facing experience
Benefits
- great work-life balance with flexible hours
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
Report this job
Found something wrong with the page? Please let us know by submitting a report below.
Senior Backend Engineer building Ruby and GraphQL source - code workflows for GitLab’s DevSecOps platform. Improving reliability, performance, and collaboration across repositories and AI - assisted development.
LP
Senior Developer – Java / Python
LinkedIn Recruiter Post
Senior Developer (Java/Python) needed for hybrid contract in Toronto. Must have 8 - 10 years experience with Java, Python, Spring Boot, and microservices.
Back - end engineer building scalable AI orchestration services and real - time infrastructure for Superhuman’s productivity platform. Collaborating across product teams to deliver reliable AI - powered features.
LP
Java Developer | Spring Boot | Kafka | MongoDB | Angular
LinkedIn Recruiter Post
Hiring Java Developer for 12 - month contract in Toronto. Skills: Spring Boot, Kafka, MongoDB, Angular. Hybrid 4 days WFO.
LP
Full Stack Java Developer & Backend Java Developer
LinkedIn Recruiter Post
Hiring Full Stack Java Developer & Backend Java Developer for a hybrid role in Toronto, ON. Requires 6+ years of experience with Java, Spring Boot, Microservices, and Cloud.
Senior Ruby backend engineer building GitLab’s DevSecOps portfolio planning platform. Designing scalable APIs, optimizing PostgreSQL, and evolving work - item hierarchy and capacity planning.
Programmeur - analyste .NET senior développant et optimisant des systèmes d’information pour Exposant 3, firme québécoise de services - conseils TI. Collaborant aux architectures, tests, déploiements et corrections applicatives en mode hybride à Montréal.
Staff Ruby engineer building GitLab’s AI - powered Duo Agent Platform repository flows. Leading autonomous agents, onboarding, architecture, and cross - team technical direction.
LP
Full Stack Developer (React + JavaScript + Node.js)
LinkedIn Recruiter Post
Hiring Full Stack Developer (React + JavaScript + Node.js) for a 6 - 12 month hybrid contract in Toronto, ON. Build scalable apps with modern cloud tech.