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Client Solution Developer - C#, Java, PHP

VKS is seeking a talented, passionate, roll-up-your-sleeves, hands-on Client Solution Developer.

As a team member, you will participate in the creation and maintenance of various customer-driven API integrations. You will be involved in projects from start to finish; from gathering requirements and formalizing them into detailed SOWs (Statements of work), to designing, implementing, deploying and supporting them. You will also be a part of a team working to develop, manage and architect scalable integration solutions that further VKS' strategic goals. The ideal candidate will also be a critical-thinking, self-starter who enjoys working in diverse technology environments. We have a passionate and dedicated team, and offer a respectful and healthy work environment.


  • Design and develop API integrations based on customer needs and preferences;
  • Develop mapping of various source and target data types (database, flat file, JSON, XML) with various transport mechanisms (SQL, REST HTTPS, SOAP, etc.);
  • Collaborate with customer success teams and developers on new customer set-ups;
  • Organize and manage Customer meetings and expectations;
  • Provide defect analysis and resolution support for system and user acceptance testing;
  • Develop and maintain API specifications for various clients for process flows and API transactions;
  • Support customers on the usage of the API;
  • Create data extraction, cleansing and formatting scripts;
  • Document custom logic specific for individual integrations;
  • Develop and maintain a clean, efficient, secure, and well-engineered code that conforms with accepted standards;
  • Build and maintain unit tests;
  • Ensure that customer issues and technology failures are detected, isolated, and resolved rapidly, and prevented from happening again;
  • Create and adhere to timelines for multiple projects and stakeholders.


  • A Bachelor's degree in Computer Science or equivalent experience;
  • 2+ years of experience working with RESTful APIs;
  • 1+ year of experience working directly with customers and gathering requirements;
  • Good knowledge of Linux (CentOS, Red Hat) and Windows;
  • Expert level skills in C# and Java;
  • Intermediate level skills in PHP, JavaScript, HTML, CSS;
  • Experience working with different types of databases, such as MySQL, SQL Server, ElasticSearch, etc.;
  • Experience working with API testing tools, like Postman;
  • Experience working with SDKs and modern frameworks (and possibly even created your own);
  • Expert knowledge of OpenAPI (3.x) and JSON Schemas;
  • Significant Web design experience taking projects from concept to code to market (users);
  • Experience with GitHub or equivalent source management system;
  • Experience in data mapping and transformation using modern integration platforms;
  • Strong organization skills and multi-tasking capability;
  • Excellent verbal and written communication skills;
  • Be fluent in English (French optional);
  • Willing to travel.


Position: Permanent
Start date: As soon as possible
Indemnities: To be discussed
Work schedule: 40 hours/week, flexible
Place of work: 1241 Cascades St., Chateauguay, Quebec, Canada J6J 4Z2

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