Job Description — Senior .NET Core

Role title:
Senior .NET Core Developer / .NET Core ERP Expert

Location:
[Mumbai-Goregoan (E)]

Experience:
3+ years (senior) / 5+ years (lead) preferred

Reports to:
Product Head

About the role

We're looking for a seasoned
.NET Core
developer who's also an ERP domain expert — someone who can design, build and maintain modules across
Accounting, Inventory, Production, Sales & Distribution, and Payroll
. You'll join a product/implementation team that delivers end-to-end ERP functionality for manufacturing & distribution customers. This is a hands-on role: coding, architecture, integration, process design, and mentoring juniors.

Key responsibilities

• Design, develop and maintain backend services and APIs using
  .NET Core
  (C#) for ERP modules: Accounting, Inventory, Production, Sales & Distribution, Payroll.
• Translate functional requirements (GL, AP/AR, stock movements, BOM, routings, shop floor, invoices, tax, payroll calculations) into robust data models and services.
• Lead or contribute to system architecture: multi-tenant setups, modular services, integration patterns (REST, gRPC, message queues).
• Implement business rules: ledger posting, stock valuation methods (FIFO/LIFO/Weighted), BOM explosion, work orders, costing, tax calculations, payroll components (earnings, deductions, statutory compliance).
• Integrate ERP with external systems: banks, Tally/QuickBooks (if required), barcode/label printers, payroll providers, e-commerce, shipping APIs.
• Ensure data integrity: transactions, journal entries, stock reconciliations, audit trails.
• Optimize performance for heavy transactional workloads (batch processing, bulk imports/exports).
• Define and enforce API contracts, security (authz/authn), and role-based access controls for ERP modules.
• Create / review technical specifications, unit & integration tests, and deployment pipelines (CI/CD).
• Mentor junior developers, help product & implementation teams with domain-specific guidance and troubleshooting.
• Participate in customer calls to clarify functional behavior, propose solutions, and provide estimates for customization.

Must-have technical skills

• Strong C# & .NET Core
  (6/7/8 depending on stack) development experience.
• Solid experience designing & building
  RESTful APIs
  and microservices.
• Deep domain knowledge across ERP functional areas:
• Accounting:
  Chart of accounts, double-entry bookkeeping, journal entries, closing periods, financial reports (Balance Sheet, P&L), tax handling.
• Inventory:
  Stock master, movements (issue/receive/transfer), stock valuation methods, stock reservations, cycle counts.
• Production:
  BOM, routings, work orders, production scheduling, capacity planning, shop-floor transactions, partial/backflush consumption.
• Sales & Distribution:
  Quotation → Order → Delivery → Invoice flows, pricing/discount rules, returns, shipments, van sales.
• Payroll:
  Salary components, gross/net pay calculation, statutory contributions (PF/ESI/others as applicable), month-end processing, salary reversals.
• Relational DB expertise (SQL Server / PostgreSQL): schema design, stored procedures, transactions, query optimization.
• Experience with
  ORMs
  (EF Core or Dapper) and when to use each.
• Familiarity with
  message queues
  (RabbitMQ/Kafka) for async processing and integration.
• Authentication & authorization: OAuth2 / JWT, role-based security.
• Unit testing and automated test frameworks.
• Source control (Git) and CI/CD pipelines (GitHub Actions, Azure DevOps. etc.).

• Experience deploying to cloud (Azure / AWS) .

• Desired (nice-to-have)

• Prior ERP product development or ERP implementation experience (Microsoft Dynamics, Odoo, SAP B1, Tally integrations etc.).
• Exposure to frontend frameworks (React/Angular) to collaborate on full-stack features.
• Experience with reporting engines (SSRS / Crystal / Power BI) and export formats (Excel/PDF).
• Knowledge of local tax & payroll compliance in target markets (e.g., India: GST, TDS, PF, ESI).
• Experience building import/export utilities and data migration scripts.

Soft skills / competencies

• Strong problem-solving and analytic skills — comfortable with ambiguous business rules.
• Excellent communication — can translate domain requirements into technical design and explain technical constraints to non-technical stakeholders.
• Customer-facing experience — able to gather requirements and suggest pragmatic trade-offs.
• Ownership mindset — responsible for reliability, data correctness and on-time delivery.
• Mentoring and team collaboration.

Education & experience

• Bachelor's degree in Computer Science, IT, or equivalent.
• 5+ years' experience building enterprise applications with .NET Core; demonstrable ERP-related projects preferred.

Interview / evaluation checklist

• Explain how double-entry accounting works and how you would map voucher flows (sales invoice → posting → GL impact).
• Design a DB schema for inventory transactions that supports multiple valuation methods and returns (short design).
• Walkthrough: implement BOM explosion for a production order (pseudo-code or sequence).
• Describe payroll month-end processing and handling retro changes (salary arrears).
• Performance: how to process 100k stock transactions a day — propose architecture.
• Hands-on coding task: build a small .NET Core API that posts a sales invoice and creates related GL entries (with unit tests).

Sample KPIs for the role

• Time to deliver a complete ERP module (design → tests → deployment).
• Number of critical production bugs / month.
• Accuracy of financial postings (zero reconciliation exceptions).
• Performance: average API response time under load / batch throughput.
• Customer satisfaction for implementations and customizations.