Software Development Engineer

Location: Newcastle upon Tyne (office‑based; remote applications will not be considered)About the Role:As a Software Development Engineer you will design, build, and maintain integration workflows on the Zynk Workflow Integration Platform as a Service (iPaaS). You will leverage your expertise in C#, XML/XSLT, JSON, and modern data‑integration patterns to deliver robust, scalable solutions that connect e‑commerce, CRM, accounting, and other business systems for our customers.Key Responsibilities:Workflow Design & Development – Author, optimise, and document workflows in Zynk Workflow Studio, orchestrating complex data flows that transform, enrich, and route information between disparate systems.Component Engineering – Extend the Zynk platform by developing new C# task adapters, connectors, and utilities that integrate REST/SOAP/GraphQL APIs, databases, and file systems.Data Transformation – Craft reusable XML schemas, XSLT stylesheets, and JSON mappings to translate between canonical and application‑specific data models.Integration Delivery – Apply integration patterns such as publish/subscribe, request/reply, file‑drop, and event‑driven processing across on‑premises and cloud endpoints.Quality & Observability – Implement integration tests, configure logging and metrics, diagnose performance bottlenecks, and ensure SLAs are consistently met.Collaboration – Partner with Solution Architects, Support Engineers, and end‑users to gather requirements, provide estimates, and iterate rapidly on feedback.Continuous Improvement – Contribute to coding standards, documentation, and internal knowledge‑base articles; mentor junior engineers and champion best practices.Essential Skills & Experience:Proven C#/.NET development experience. Expert knowledge of XML, XSD, XSLT 2.0/3.0, JSON, and related transformation libraries.Solid understanding of canonical data models, schema design, and common B2B integration protocols (REST, SOAP, GraphQL, FTP/SFTP, EDI).Hands‑on experience with message queuing or event streaming technologies (e.g., RabbitMQ, Azure Service Bus).Proficiency with GIT, CI/CD pipelines, and automated testing frameworks.Strong analytical and problem‑solving skills with a passion for clean, maintainable code.Desirable:Experience integrating accounting, ERP, or e‑commerce APIs (e.g., Sage, Xero, Shopify, Magento).Knowledge of SQL databases and performance tuning.Familiarity with containerisation (Docker) and cloud platforms (Azure, AWS).Why Zynk?Work at the heart of an innovative iPaaS product used by hundreds of businesses worldwide.Collaborative culture that values creativity, experimentation, and continuous learning.Competitive salary, pension.Modern city‑centre office.How to Apply:Send your CV and a short cover letter explaining why you’re a great fit to work@zynk.com. We review applications as they arrive – apply today to join us on our journey to simplify data integrationZynk is an equal‑opportunity employer committed to fostering diversity and inclusion. NO AGENCIES. About Zynk: At Zynk, we’re on a mission to simplify data integration for businesses across the ecommerce, CRM, and accounting ecosystems. Our platform helps automate complex workflows and eliminate repetitive tasks, giving our customers the freedom to focus on what they do best. We’re a team of thinkers, builders, and problem-solvers working together to make seamless automation accessible for growing businesses. Whether we’re designing intuitive tools or delivering exceptional support, we believe in doing things with purpose, precision, and integrity. If you’re passionate about building technology that has real-world impact, you’ll feel right at home here.