Full-Stack Developer

You will be the technical lead responsible for: ● Implementing Insightly CRM pipelines, custom fields, automations, and API integrations ● Designing and building a scalable middleware/API layer ● Working with operational heads to convert business processes into robust system workflows ● Acting as the glue between CRM, web app, and external partner systems (dialers, financing providers, proposal management and scheduling tools, etc.) You will be an experienced, senior, hands-on engineer with architectural autonomy and Significant influence over Lytegen’stechnology direction. This is a greenfield opportunity to help define the architecture, build core integrations, and ship real tools used daily by hundreds of internal and external users and would be ideal for an engineer who enjoys solving end-to-end business workflow problems, not just writing code. Requirements CRM (Insightly) Implementation ● Configure Insightly objects, pipelines, automations, and permissions ● Build custom fields and structured workflowsfor leads, proposals, NTP, projects, permitting & installations ● Set up and manage Insightly webhooks and API integrations ● Optimise CRM usability for setters, schedulers, closers, and project teams Middleware / Integration Layer ● Design system integrations between Insightly and external tools ● Build REST APIs, background workers, webhooks, and syncing logic ● Implement authentication, API rate-limit handling, and robust error logging ● Set up a clean, maintainable architecture (Serverless preferred) Collaboration + Product ● Translate complex business workflowsinto technical designs ● Participate in solution design workshops with US/UK stakeholders ● Handle documentation, schema design, API contracts, and release planning ● Assesstechnical feasibility, effort, and impact before implementation Skillset ● Strong proficiency in fullstack development (NOSQL, React or Next.js, Lambda) ● Solid understanding of REST APIs, authentication, and integration patterns ● Experience working with CRMs(Insightly preferred, Salesforce/HubSpot acceptable) ● Strong debugging, performance optimisation, and architectural skills ● Cloud experience (AWS preferred) ● Ability to understand sales workflows, operations processes, and multi-stage pipelines ● Strong communication—clear documentation, structured thinking, and internal stakeholder coordination ● Ability to convert ambiguous requirements into structured system designs. ● MERN STACK - Reactjs Nodejs Nextjs RestAPIs AWS Typescript. ● DATABASE- PostgreSQL Mongobd MySQL. ● SEO knowledge. ● CRM building is mandatory with salesforce /Hubspot/zoho/zeeper/oodo Experience ● 4–8 years of full-stack engineering experience ● Must have delivered at least one end-to-end CRM or workflow automation project ● Must have built API-driven backend services ● Bonus: Experience in solar, field service, fintech, or operations-heavy businesses ● Bonus: Experience with Insightly specifically (otherwise willingnessto upskill quickly)