5 Star rating from Clutch verified reviews

Backend Development Services That Reliably Scale

REST and GraphQL APIs, microservices, and event-driven systems in Node, Python, Go, and Java. Built so the backend is never the reason the front end can't ship.

No commitment requiredResponse within 24 hours

Where Teams Get Stuck

The Problem We Solve

What we see when an API survives version one but starts buckling under integration partners, traffic patterns, and the queries no one wrote tests for.

The Problem

A poorly designed backend becomes the ceiling on your product's growth. Slow APIs frustrate users. Inadequate database design creates bottlenecks. Monolithic architectures block your team from shipping independently. Technical debt accumulates until even simple changes take weeks.

Our Solution

We build clean, well-documented backend systems with the right architecture for your scale, whether that's a pragmatic monolith for your MVP stage or a distributed microservices platform for enterprise load. Every system we deliver includes comprehensive API documentation, automated testing, and monitoring from day one.

What We Build

Custom Backend Development Services Capabilities

REST and GraphQL APIs, microservices, databases, and integrations built for the load patterns and contract guarantees your product depends on.

REST & GraphQL API Development

Well-designed APIs with OpenAPI documentation, versioning, rate limiting, authentication, and consistent error handling that your front-end and partner integrations can rely on.

Microservices Architecture

Service decomposition, inter-service communication patterns, API gateways, and service mesh configuration for complex distributed systems.

Database Design & Optimization

Schema design, indexing strategy, query optimization, and migration management for PostgreSQL, MySQL, MongoDB, and Redis across OLTP and analytical workloads.

Authentication & Authorization

Secure identity systems using OAuth 2.0, JWT, and OpenID Connect, with role-based access control, multi-tenancy support, and audit logging built in.

Real-Time & Event-Driven Systems

WebSocket servers, event-driven architectures with Kafka or RabbitMQ, and pub/sub patterns for live features and async processing pipelines.

Third-Party Integrations

Payment processors, CRM platforms, communication APIs, data providers, and enterprise systems, integrated reliably with proper error handling and webhook management.

Where It Ships

Custom Backend Development Services in Production

APIs and service builds we have shipped where the load profile, the integration surface, or the auth model decided whether the system held.

01

API for a New SaaS Product or Mobile App

When the front-end team is shipping fast and needs a backend that won't be the bottleneck, we build the API with the contract designed against your front-end's actual queries. Auth, payments, webhooks, and the operational tooling your support team will need on day one.

02

Modernizing a Legacy Backend or PHP Monolith

When an existing backend (older Rails, PHP, Java EE, or a 15-year-old .NET monolith) is blocking new features, we modernize incrementally using the strangler-fig pattern. New services in Node, Python, or Go; old services migrated when there's a real business reason; cutover staged so the customers using the system don't notice the switch.

03

Decomposing a Monolith Into Microservices

When a single deploy locks the engineering team into shipping together, we identify the seams (ownership boundaries, scaling boundaries, deploy boundaries) and pull services out one at a time. Each extraction includes the integration contract, the observability the new service needs, and the rollback plan if the call site regresses.

04

Real-Time Backend for an Operational Product

For products that need sub-second updates (live dashboards, multiplayer features, market data, IoT telemetry), we build the event-driven backend on Kafka, NATS, or a managed equivalent. Designed with explicit replay, exactly-once semantics where the workload demands it, and the backpressure handling that survives a 10x traffic spike.

05

Backend for Multi-Tenant B2B SaaS

Row-level tenant isolation, per-tenant resource limits, custom auth schemes (SSO, SCIM provisioning, SAML), admin tooling for your CS team, and the migration discipline that survives a tenant base growing from 5 to 500 without breaking existing customers.

06

Backend for AI or ML-Powered Features

When the product is adding LLM, embeddings, or ML model calls, we build the backend that handles the cost accounting per workflow, the retry-with-fallback logic when a provider rate-limits, the structured-output validation, and the audit trail every output a user sees has to be reconstructible from.

Questions? We've Got Answers

Your Backend API Questions, Answered.

Direct answers on REST, GraphQL, and the architectural tradeoffs that decide which fits your product and your team.

Featured Answer

What is the difference between REST and GraphQL APIs, and when does each make sense?

REST fits predictable endpoints with stable response shapes, HTTP-layer caching, and heterogeneous consumers including server-to-server, browsers, and mobile. GraphQL fits when one API serves multiple frontends needing different data shapes, when over-fetching becomes a bottleneck, or when schema-driven typing accelerates frontend work. GraphQL adds query-cost analysis and caching complexity REST does not have. Many systems use both, REST for public and GraphQL for internal frontends.

Get an API architecture recommendation from our team.

Talk to a backend engineer
Tech Stack

Technologies for Custom Backend Development Services

Node, Python, Go, Java, and .NET stacks our backend engineers reach for on production APIs, services, and integrations.

Node.jsPythonGoJava.NETPostgreSQLMongoDBRedisKafkaDockerKubernetes

Get a Free Backend Development Estimate

Tell us about the backend you want built. We'll come back with a tailored proposal within 24 hours.

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SOC 2 Certified 5 Star Client Rating No Commitment
How We Work

Our Development Process

An API contract reviewed and signed off in week one, two-week sprints with schema-diff checks in CI, and load tests before production cutover.

01

Discovery & Planning

Deep dive into your goals, users, and technical requirements. We define scope, timeline, and success metrics.

02

Architecture & Design

System design, wireframes, and prototypes. We validate the approach before writing code.

03

Agile Development

Two-week sprints with bi-weekly demos. Continuous integration, code reviews, and transparent progress.

04

Testing & QA

Automated testing, manual QA, performance testing, and security audits on every release.

05

Deployment & Launch

Zero-downtime deployment to production with monitoring, alerting, and rollback capabilities.

06

Optimization & Support

Post-launch monitoring, performance optimization, and ongoing feature development.

The Software Pro Difference

Why Choose Software Pro for Custom Backend Development Services

The reasons engineering leaders keep coming back, told the way we'd tell them in the room.

NYC Headquartered, Global Talent

420 Lexington Ave, Suite 300. NYC based agency accountability backed by 200+ globally sourced engineers and developers.

2 Week Team Spinup

From signed contract to productive engineers in 10 business days. We've done it 200+ times.

95% Retention Rate

Our engineers stay because we treat them right. Low turnover means consistency for your project.

Zero Risk Trial

Every engineer comes with a 2 week trial. Not the right fit? We replace them in 48 hours, no charge.

US Time Zone Alignment

6 to 8 hours of daily overlap with every US timezone. Real time collaboration, not async handoffs.

8000+ Projects Delivered

From Series A startups to Fortune 500 enterprises. We've seen every challenge and solved it.

Case Studies:
Results You Can Trust

Discover real outcomes from real clients: software platforms, custom development, and full stack solutions that moved the needle.

Healthcare AI Receptionist & Call Automation Built for Patient Connect / CuroAI
Featured
Verified

Healthcare AI Receptionist & Call Automation Built for Patient Connect / CuroAI

"Software Pro took the time to understand how our healthcare communication workflows actually operated before recommending a solution. Their ability to design a secure, scalable AI receptionist system while maintaining compliance standards made the implementation smooth and practical for our team."

Written by: Ben Pure, VP

Patient Connect

AI Receptionist Development

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ZIINA Payments App Built for the UAE Market, Licensed by the Central Bank of UAE
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ZIINA Payments App Built for the UAE Market, Licensed by the Central Bank of UAE

"Software Pro delivered our entire mobile payments platform on time, handling complex compliance requirements and integrating with UAE financial infrastructure. Truly an exceptional team."

Written by: Ahmed Al-Rashid

ZIINA

FinTech App Development

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LaborAI Warehouse Planning Platform Redesigned for Clarity, Usability, and Conversions
Verified

LaborAI Warehouse Planning Platform Redesigned for Clarity, Usability, and Conversions

"The redesigned website finally communicates what LaborAI does in a way that resonates with our customers. Complex technical content turned into a clear, compelling experience that drives real inquiries."

Written by: Lee Rector

LaborAI

Website Redesign

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Miiskin Telehealth App Connecting Patients with Board-Certified Dermatologists Online
Verified

Miiskin Telehealth App Connecting Patients with Board-Certified Dermatologists Online

"The team built a secure, HIPAA-compliant telehealth platform our dermatologists use daily. Their expertise in healthcare app development made the entire process seamless and reliable."

Written by: Dr. Martin Jensen

Miiskin

Healthcare Telehealth App

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Aware House Multi-Vendor Marketplace Optimized with CRO for Higher Conversion and Sales
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Aware House Multi-Vendor Marketplace Optimized with CRO for Higher Conversion and Sales

"The CRO work transformed how our customers shop on Aware House. The improvements to navigation and product pages have made a real difference to how visitors engage and convert."

Written by: Lauren Hidalgo

Aware House

eCommerce CRO & Redesign

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Goalers iOS App Launched on the App Store with a Perfect 5.0 Star Rating
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Goalers iOS App Launched on the App Store with a Perfect 5.0 Star Rating

"From wireframes to App Store submission, Software Pro handled everything professionally. The app is beautiful, fast, and our early users absolutely love it."

Written by: Chris Mercer

Goalers LLC

iOS Mobile App Development

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Ecological Law Website Built from Scratch for Global SEO Visibility and Mission Impact
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Ecological Law Website Built from Scratch for Global SEO Visibility and Mission Impact

"Software Pro built us a platform that truly represents our mission and reaches the global audience we need. The site is clear, professional, and already helping us connect with advocates worldwide."

Written by: Victor Tafur

Ecological Law

Website Design & Development

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Proud Arts STL Nonprofit Website Redesigned to Drive Engagement and Community Impact
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Proud Arts STL Nonprofit Website Redesigned to Drive Engagement and Community Impact

"The redesigned website finally tells our story in a way that moves people. We can see the difference in how visitors engage with our programs and how many more complete registrations."

Written by: AJ

Proud Arts STL

Nonprofit Website Redesign

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FX Evolution Trading Platform Delivering Real-Time Market Data to Active Traders
Verified

FX Evolution Trading Platform Delivering Real-Time Market Data to Active Traders

"Software Pro built our full trading education platform with real-time data feeds and a polished member dashboard. Our Market Masters Club members rate it as an essential daily tool."

Written by: Robert Chambers

FX Evolution

Trading Platform Development

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Collective Voice Creator SaaS Platform Powering Influencer Campaigns at Scale
Verified

Collective Voice Creator SaaS Platform Powering Influencer Campaigns at Scale

"The SaaS dashboard Software Pro built for us is clean, fast, and exactly what our creator partners need. They truly understood our product vision and delivered it with precision."

Written by: Sarah Mitchell

Collective Voice

Creator SaaS Platform

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Wisper ISP Website Refined for Cross-Device Consistency, Mobile Usability, and Technical Reliability
Verified

Wisper ISP Website Refined for Cross-Device Consistency, Mobile Usability, and Technical Reliability

"Our mobile users can now access all forms and the redirect issues that were frustrating customers are completely resolved. Systematic, accurate, and professional work."

Written by: AJ

Wisper ISP

Website Development

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PCMCC Healthcare Platform Redesigned for Better UX and SEO, Growing Impressions from 526 to 4.83K
Verified

PCMCC Healthcare Platform Redesigned for Better UX and SEO, Growing Impressions from 526 to 4.83K

"The redesign transformed how our platform presents our services. Going from barely showing up in search to over 4,800 impressions is a meaningful change for our practice."

Written by: Benjamin Pure

PCMCC

Website Redesign & SEO

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STRIDES iOS App Launched on the App Store to Power Real-Time Sales Tracking for Insurance Agencies
Verified

STRIDES iOS App Launched on the App Store to Power Real-Time Sales Tracking for Insurance Agencies

"STRIDES gave us exactly what we needed — a simple way for agents to log their activity and a clear way for us to see what is actually happening in the field."

Written by: Andy Khoo

GITSA

iOS App Development

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Protect3D Health-Tech Website Redesigned to Communicate Complex Innovation and Drive Demo Bookings
Verified

Protect3D Health-Tech Website Redesigned to Communicate Complex Innovation and Drive Demo Bookings

"The team took our technically complex product and turned it into a story that our customers actually understand. The improvement in demo requests since launch has been significant."

Written by: AJ

Protect3D

Health-Tech Website Redesign

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IllnessRx Healthcare App Connecting Patients and Providers Across Multiple US States
Verified

IllnessRx Healthcare App Connecting Patients and Providers Across Multiple US States

"The team delivered a secure and compliant healthcare app our medical network depends on daily. Their understanding of HIPAA requirements and healthcare workflows was outstanding."

Written by: Dr. Patricia Wells

IllnessRx

Healthcare App Development

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Crosslet Photo & Video Website Redesigned into a High-Impact, SEO-Ready Platform for Growth
Verified

Crosslet Photo & Video Website Redesigned into a High-Impact, SEO-Ready Platform for Growth

"The team transformed our outdated website into a platform that truly reflects the quality of our work. The new design is clean, professional, and we are already seeing more inquiries from potential clients."

Written by: Alyssa Voss

Crosslet Photo & Video

Website Redesign & SEO

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J & P Painting Website Built from the Ground Up to Drive Local Leads and Bookings
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J & P Painting Website Built from the Ground Up to Drive Local Leads and Bookings

"We went from having no online presence to a professional website that generates real inquiries. We are now showing up in local searches and getting more calls than ever before."

Written by: Jack Odin

J & P Painting

Website Development

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Envy Eyes & Wax Med Spa Website Redesigned to Reflect Premium Brand and Drive Bookings
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Envy Eyes & Wax Med Spa Website Redesigned to Reflect Premium Brand and Drive Bookings

"Our new website finally looks and feels like the premium spa experience we deliver. Clients are finding us more easily online and the booking process is so much smoother."

Written by: Tammy Pak

Envy Eyes and Wax Med Spa

Website Redesign

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Aware House Shop CRO Strategy Delivering Multi-Fold ROAS Improvement on Shopify
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Aware House Shop CRO Strategy Delivering Multi-Fold ROAS Improvement on Shopify

"We had the traffic and the products but were not converting. The team identified exactly where we were losing customers and fixed it. Our ROAS improvement has been exceptional."

Written by: Lauren Hidalgo

Aware House

eCommerce CRO

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KAF Arts Platform Built as a Scalable Digital Hub for a Multi-Venue Arts Organization
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KAF Arts Platform Built as a Scalable Digital Hub for a Multi-Venue Arts Organization

"The custom filtering and performance improvements have made a measurable difference. It was a complex build and the team handled every challenge with expertise."

Written by: AJ

KAF Arts

Website Development

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Radius Enterprise Website Engineered for Scalability, Advanced UX, and Multi-Country Expansion
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Radius Enterprise Website Engineered for Scalability, Advanced UX, and Multi-Country Expansion

"The level of engineering precision was outstanding. The CMS components mean our team can update content without involving developers. Exceptional work throughout."

Written by: AJ

Radius

Enterprise Website Development

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Gate Escape Premium Airport Experience Website Designed for Immersion and Conversion
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Gate Escape Premium Airport Experience Website Designed for Immersion and Conversion

"The team translated our innovative airport pod concept into a digital experience that matches the quality of our physical product. The visual storytelling exceeded our expectations."

Written by: AJ

Gate Escape

Website Redesign

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Rebis Design System Stabilized for a Consistent, Scalable, and Professional Web Platform
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Rebis Design System Stabilized for a Consistent, Scalable, and Professional Web Platform

"We had been struggling with style inconsistencies that kept coming back every time we made updates. The team fixed it properly and our site now looks consistent across every page."

Written by: AJ

Rebis

Design System Development

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Pep Boys Enterprise Website Scaled with Location Pages, SEO Content, and Streamlined Deployments
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Pep Boys Enterprise Website Scaled with Location Pages, SEO Content, and Streamlined Deployments

"The team became a reliable extension of our development operation, handling landing page creation and content updates with the accuracy and discipline that enterprise workflows demand."

Written by: Adam Huber

Pep Boys

Enterprise Website Development

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FallTech Blog Transformed into a Structured SEO-Driven Content Platform for Long-Term Growth
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FallTech Blog Transformed into a Structured SEO-Driven Content Platform for Long-Term Growth

"The team transformed our disorganized blog into a proper content platform. The migration from HubSpot was handled without losing content and the SEO structure has significantly improved performance."

Written by: CDS Team

FallTech

Content Platform Development

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P&E Stainless Product Catalog Transformed into a Structured Digital Platform for Technical Buyers
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P&E Stainless Product Catalog Transformed into a Structured Digital Platform for Technical Buyers

"Migrating our entire product catalog was a complex undertaking. The result is a platform that our technical customers can actually navigate efficiently to find the specifications they need."

Written by: CDS Team

P&E Stainless

Product Catalog Development

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Chromatic Fox Studio Website Continuously Enhanced to Support Growing Beauty Service Offerings
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Chromatic Fox Studio Website Continuously Enhanced to Support Growing Beauty Service Offerings

"Having a reliable development partner for ongoing website updates has been invaluable. Every new service page matches our existing design perfectly and critical updates are handled exactly when needed."

Written by: CDS Team

Chromatic Fox Studio

Ongoing Website Development

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Holy City Med Landing Page Built to Drive Membership Signups for Modern Healthcare Services
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Holy City Med Landing Page Built to Drive Membership Signups for Modern Healthcare Services

"The landing page does exactly what we needed — it explains our model clearly and converts visitors who would otherwise leave confused. The multi-audience approach was particularly effective."

Written by: CDS Team

Holy City Med

Landing Page Development

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TMMR Fleet Operations SaaS Platform Built to Centralize Reporting for Transportation Professionals
Verified

TMMR Fleet Operations SaaS Platform Built to Centralize Reporting for Transportation Professionals

"Having everything — mileage, maintenance, invoices, compliance — in one place instead of spread across different tools has transformed how we manage our operations."

Written by: Van Solkov

TMMR

SaaS Platform Development

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People 4 People Membership Platform Scaled with Custom Commission Logic and Multi-Role Architecture
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People 4 People Membership Platform Scaled with Custom Commission Logic and Multi-Role Architecture

"The membership system, commission logic, and onboarding improvements have made a real difference to how our platform operates. The scalability work means we can grow without worrying."

Written by: Jennifer

People 4 People

Membership Platform Development

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Industries

Custom Backend Development Services Across Industries

Where the API contract, the integration surface, and the load profile decide whether the backend scales past launch.

Client Reviews

Trusted by Engineering Leaders

All reviews verified and sourced fromClutch.co
Clutch Verified

"Software Pro took off the workload of production from our shoulders entirely. They designed and developed the entire platform from scratch and provided continuous application support. We're already in talks with them for another project."

E-Commerce Development & Application Support

Phillip Tyler

Founder, Kreative Bugs

Brisbane, AustraliaMar 2025
Clutch Verified

"Their commitment to clear communication, timely delivery, and post-launch support truly impressed us. They delivered a robust, scalable website with visually stunning design. Post-launch training and troubleshooting ensured we could manage everything independently."

Web Development & UI/UX Design

Daniel Foster

Manager, Bulvar Global

Lisbon, PortugalMar 2025
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Frequently Asked Questions

Answers to what buyers ask before they sign.

Get In Touch

Start Your Backend Development Project

Share the workload, the traffic profile, and the systems you'll need to integrate with. We'll come back with a stack recommendation, an API contract sketch, and the honest answer on which architecture pattern fits the scale you're sizing for.

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