Software Crafting
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Backend Development & API Servicesby SoftwareCrafting

Robust backend solutions using Node.js, Express, MongoDB, MySQL, and PHP by SoftwareCrafting. API development and database architecture.

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NDA-Protected
48hr Kick-off
7 Engineers
Founder-led Delivery
SoftwareCrafting Backend Development Services

Delivery Time

2-6 weeks depending on complexity

Senior deliveryFounder-involved build team
From₹25,000

Service Overview

We build backend systems that behave correctly under conditions that only show up in production: concurrent writes to the same record, retried requests after a network timeout, third party services that are slow rather than down, and traffic that arrives ten times faster than the plan assumed. Most of our work is Node.js and NestJS with PostgreSQL, and the decisions that matter happen early: the data model and its constraints, transaction boundaries, which operations must be idempotent, where queues belong instead of synchronous calls, and how the system degrades when a dependency fails. We treat the database as the source of truth and enforce invariants there rather than hoping application code is always right. Everything ships with structured logging, tracing, and metrics, because a backend you cannot observe is a backend you cannot operate. You get an API with a documented contract, tests around the logic that would be costly to get wrong, and runbooks for the failure modes we designed for.

Technologies we use

Node.jsNestJSPythonFastAPIGoSpring BootBunWebRTCSocket.ioMongoDBPostgreSQLRedisGraphQLtRPCJWTDockerAWSMicroservices

Key Features

  • RESTful API development
  • GraphQL API implementation
  • Database design and optimization
  • Authentication and authorization
  • Microservices architecture
  • Real-time data processing
  • Third-party API integration
  • Payment gateway integration
  • Email and SMS services
  • File upload and storage
  • Caching strategies
  • Security implementation
  • Performance optimization
  • API documentation
  • Transaction boundaries and database level constraints that enforce invariants
  • Idempotent write paths safe under client and network retries
  • Queue backed asynchronous processing with dead letter handling
  • Graceful degradation when third party dependencies are slow or failing
  • Connection pooling and query performance tuning under real concurrency
  • Structured logging, distributed tracing, and service metrics
  • Load testing against realistic traffic shapes before launch
  • Runbooks covering the failure modes the system was designed for

Also part of this service

Database & Storage Architecture

We design data layers that stay correct and stay fast as your data grows, which are two different problems. Correctness comes from a schema that models your domain honestly, constraints and foreign keys enforced in the database rather than hoped for in application code, transaction boundaries chosen deliberately, and migrations that can run against a live system without downtime. Speed comes later and from evidence: query plans read rather than guessed at, indexes designed for actual access patterns instead of added hopefully, connection pooling sized to real concurrency, and partitioning or read replicas introduced when the numbers justify them rather than pre emptively. Most of our work is PostgreSQL, including the parts teams underuse such as partial and covering indexes, row level security for multi tenant isolation, native partitioning for time series data, and full text and vector search that avoids adding a separate system. We also handle the operational half: backup strategy verified by restoring, point in time recovery, and upgrade paths.

  • Relational schema design for PostgreSQL and MySQL
  • MongoDB document modeling and collection design
  • Indexing, query analysis, and performance tuning
  • Zero-downtime migration planning and rollout support
  • Redis caching strategies for hot paths and sessions
  • File storage architecture with S3-compatible buckets
PostgreSQLMongoDBRedisDynamoDBPrismaDrizzleORMTypeORMSupabaseAWS S3Elasticsearch

API Design & Architecture

We design APIs that survive contact with real consumers and keep working as your product changes. That starts before any code: resource modelling, consistent naming and error semantics, pagination and filtering conventions, authentication and authorisation model, and an explicit versioning strategy so you can evolve without breaking every client. We work in REST, GraphQL, and tRPC, and we pick based on who is consuming the API rather than on preference. The contract is the deliverable as much as the implementation, which means OpenAPI or GraphQL schemas that are the source of truth, generated type safe clients, and contract tests that fail the build when the implementation drifts. We also design for the operational realities that break APIs in production: idempotency for retried writes, rate limiting and quotas, consistent error responses that clients can act on, and deprecation processes that give consumers a real migration window.

  • REST, GraphQL, and tRPC API design with the choice driven by consumers
  • Resource modelling with consistent naming, filtering, and pagination
  • OpenAPI and GraphQL schemas maintained as the source of truth
  • Type safe client generation for frontend and partner consumers
  • Authentication and authorisation design including scopes and permissions
  • Versioning strategy with backward compatible evolution rules
GraphQLtRPCRESTgRPCOpenAPI / Swagger

Email & Notifications

We build transactional email and notification infrastructure that reliably reaches the inbox, which is a harder problem than sending the message. That starts with deliverability: SPF, DKIM, and DMARC configured correctly, a dedicated or properly shared sending domain, subdomain separation between transactional and marketing mail, and a warmup plan if the domain has no sending history. On top of that we build the delivery layer, templates that render correctly across the clients your users actually have, retry and bounce handling, suppression lists that respect unsubscribes and hard bounces, and webhook processing so delivery, open, and complaint events flow back into your product. We also build multi channel notification systems where email is one route alongside in app, push, SMS, and Slack, with user preferences and digest batching so people are not overwhelmed into muting you entirely.

  • Transactional email setup with Resend, Postmark, SendGrid, or Amazon SES
  • SPF, DKIM, and DMARC configuration and validation
  • Sending domain and subdomain strategy with reputation warmup
  • Responsive email templates tested across major clients
  • React Email or MJML template systems with live preview
  • Bounce, complaint, and suppression list handling
AWS SESResendSendGridReact EmailTwilioOneSignal

Pricing Snapshot

₹25,000

Starting from ₹25,000 for complete backend development projects

  • Model: project
  • Timeline: 2-6 weeks depending on complexity
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Quick Links

Get Free Quote - Contact NowWhatsApp - Quick ResponseAPI Documentation - PIP TradeGitHub - Backend Projects
Step-by-step

Our Delivery Process

We use an agile, transparent process to ensure your project is completed on time and meets exactly your needs.

01

Architecture Planning

Designing scalable backend architecture and database schema

2-3 days
02

API Development

Building RESTful APIs and GraphQL endpoints

1-3 weeks
03

Database Implementation

Setting up and optimizing databases

3-5 days
04

Security & Authentication

Implementing security measures and user authentication

2-4 days
05

Testing & Optimization

Comprehensive testing and performance optimization

3-5 days
06

Deployment & Monitoring

Deploying to production with monitoring setup

1-2 days
Why Us

Why Choose SoftwareCrafting?

  • Correct behaviour under concurrency, not just under happy path testing
  • Retries that never double charge or duplicate records
  • Slow third parties degrade the system instead of taking it down
  • Invariants enforced in the database, where they cannot be bypassed
  • A backend you can observe, and therefore actually operate
FAQ

Frequently Asked Questions

How much does backend and API development cost?

From ₹25,000. A production API with authentication, a well-designed schema, and documentation is typically ₹60,000 to ₹2,00,000 depending on endpoint count and integration complexity.

What backend technologies does SoftwareCrafting specialize in?

We specialize in Node.js, Express.js, MongoDB, MySQL, PostgreSQL, PHP, Laravel, and modern backend technologies for scalable applications.

Do you provide API documentation?

Yes, We provide comprehensive API documentation including endpoints, parameters, responses, and integration examples.

Can you integrate with third-party services?

Absolutely! We have experience integrating with payment gateways, email services, SMS providers, and various third-party APIs.

How do you ensure backend security?

We implement comprehensive security measures including JWT authentication, input validation, rate limiting, encryption, and security best practices.

How do you handle traffic spikes?

By designing for them rather than reacting. That means load testing against realistic traffic shapes before launch, moving anything that does not need a synchronous response onto a queue, connection pooling sized to actual concurrency, caching at the layers where it is safe, and autoscaling with sensible bounds. We also define what the system should shed first when it genuinely cannot keep up.

Do you write tests, and how many?

Yes, concentrated where defects are expensive rather than chasing a coverage percentage. That means thorough tests on business logic, money handling, permissions, and data integrity, integration tests against a real database rather than mocks, and end to end coverage of the few journeys that must never break. Uniform coverage targets tend to produce a lot of tests on trivial code.

Can you take over an existing backend?

Yes, and it is a common engagement. We start with an audit covering data model, security, performance, and operational readiness, produce a prioritised report, then work through it. Early work is usually observability, because you cannot safely change a system you cannot see.

PostgreSQL, MongoDB, or something else?

PostgreSQL by default, because relational constraints, transactions, and its JSON support cover the overwhelming majority of application requirements, and the operational knowledge is widespread. MongoDB earns its place for genuinely document shaped data with varying structure. We pick on the data shape and access patterns, not on preference.

Can you fix a slow existing database?

Yes. We start with query logs, indexes, schema shape, ORM usage, cache behavior, and the slowest user-facing workflows. Then we ship targeted fixes instead of proposing a risky rewrite first.

PostgreSQL or MongoDB - which should we choose?

PostgreSQL is usually best for relational business data, reporting, transactions, and complex permissions. MongoDB can be useful for flexible documents, rapid iteration, and content-like data. We choose based on your access patterns, not hype.

REST, GraphQL, or tRPC?

It depends on the consumer. REST suits public and partner APIs where broad compatibility, caching, and familiarity matter. GraphQL suits clients with varied data needs, particularly mobile apps wanting to avoid over fetching across many screens. tRPC suits a TypeScript frontend and backend in the same repository, where end to end type safety without a schema layer is the win. Many systems justify more than one.

How do we change an API without breaking clients?

Additive changes are safe: new optional fields and new endpoints. Breaking changes need a version, whether through a URL path, a header, or a GraphQL deprecation cycle. The part teams skip is the process around it: announce, provide a migration guide, instrument which consumers still use the old version, and only remove once usage reaches zero.

Why do our emails go to spam?

Almost always authentication or reputation. Missing or misconfigured SPF, DKIM, and DMARC records are the most common cause, followed by sending transactional mail from the same domain as marketing campaigns, sending to addresses that hard bounce, and sudden volume increases from a domain with no history. We audit all of these and fix them in order of impact.

Which email provider should we use?

Resend suits developer teams wanting a modern API and React based templates. Postmark has an excellent reputation specifically for transactional delivery speed. Amazon SES is the cheapest at volume but requires you to handle more yourself. SendGrid covers both transactional and marketing in one product. We recommend based on your volume, team, and whether you also send marketing mail.
Our Work

Case Studies

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Testimonials

Client Success & Reviews

See what our clients say about our Backend Development & API Services delivery.

"We engaged the team to build the Junnar Shikshak Patsanstha app, allowing our members to securely access and track their account activity in real-time. The development process was smooth, they understood our requirements around member accounts and transaction details, and handled everything professionally from build to Play Store deployment. The app went live without any issues and our members have found it easy to use. Highly recommended for anyone needing a reliable Android app built and deployed properly."

P

Pradeep Pisey

Client

"Great experience working with the team on Driftload. They built our entire platform - driver app, customer booking app, website, admin panel, and backend server - all working together smoothly. Communication was clear throughout, they understood the complexity of coordinating multiple apps with a shared backend, and delivered everything on time. Highly recommended for anyone needing a full end-to-end platform built right."

D

Dhruv Singh

Client

"Great experience working with the team - they built a high-quality website and app with excellent attention to detail. Communication was clear throughout, technical knowledge was strong, and delivery was on time. Bug fixes and support were quick whenever needed, and all project requirements were met. Highly recommended for anyone looking for a reliable, professional team."

A

Avesh Mansuri

Client

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