Financial Software Development Services

Trusted finance developers build secure custom software for transactions, workflows, compliance, speed, safety, and efficiency.

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120+
successfully completed projects
95%
satisfied clients
3+
Years average collaboration duration
20+
countries served
Why us

Benefits of Our Finance Software Development Services

Stellar delivers tailored software solutions designed specifically for the financial services sector. Our platforms combine advanced security, scalability, and operational efficiency to help businesses streamline workflows, safeguard sensitive data, and make smarter, data-backed decisions. With companies leveraging custom financial software reporting up to 40% faster decision-making and 30% lower operational risks, our solutions offer both immediate value and long-term stability.

OUR EXPERTISE

Financial Software Development Services We Offer

Stellar builds custom financial software that automates tasks, strengthens security, and simplifies financial management.

Custom financial software fits business needs, ensures compliance, and improves efficiency by up to 45%.

Tailored – Custom features and workflows for your business.

Efficient – Automate tasks, reporting, and reduce errors.
Compliant – Stay audit-ready and meet regulations.
Scalable – Grow without rebuilding your platform.

Automate financial tracking, cut costs 40%, and simplify compliant taxes.

Tracking – Monitor income, expenses, and cash flow.
Automation – Automate invoices, reports, and data entry.
Reporting – Generate clear reports for stakeholders.

Secure gateway integrations can boost completed checkouts by 30%.

Integration – Connect Stripe, PayPal, Square, and more.
Flexibility – Support subscriptions and multi-currency payments.
Speed – Enable real-time confirmations and settlements.

Tailored tools optimize portfolios, insights, and client retention by 28%.

Apps – Build intuitive web and mobile apps.
Security – Protect data with layered security.
Payments – Support fast payments and transfers.

Build secure digital banking tools for 72% of mobile-first customers.

Payments – Simplify digital payments and transfers.
Access – Streamline login and account management.
Insights – Deliver balances, spending, and alerts.
Growth – Scale with users and new features.
Case studies

Some of the work we're most proud of

From eCommerce to fintech, our clients span 20 countries and every project is different.

DenmarkDenmark
shopify
migration
shopify app

Migrating BERING From Shopware to Shopify: ~20% Faster Storefront

How we rebuilt the storefront, split the EU and US into separate stores, and set up Shopify Markets for Europe - without pausing orders.

~20%
Faster Performance
2
Stores across multiple markets
100%
Shipped under live traffic
UKUK
magento
shopify
shopify plus

Migrating Ca'Pietra From Magento to Shopify Plus With Native B2B

How we moved retail and trade to Shopify Plus on native B2B, no custom backend - B2C on schedule, trade portal a month later.

0
Days of Delay
0%
Budget Overrun
101,412
Accounts Migrated
UkraineUSAUkraine · USA
shopify

Rebuilding Cultnaked's Store on Online Store 2.0: Under 2s Load

How we rebuilt the store on Online Store 2.0, simplified checkout, and automated inventory and marketing with NestJS, Klaviyo and Zapier.

+25%
Conversion rate
-40%
Manual work
+20%
Sales growth
GermanyGermany
wordpress

Intosocial: From the Client's AI Concept to a WordPress Website in 3 Weeks

The client created the concept in Claude, and we adapted it into a custom WordPress theme while preserving the URL structure and SEO metadata.

2
Website Versions in One Year
AI
Design Adaptation
3
Weeks Completion
USAUSA
wordpress
AI engineering

WordPress AI Assistant for Personalized Travel Itineraries

We integrated an AI assistant into the World Jewish Travel WordPress website that creates personalized travel itineraries and generates AI videos or podcasts for them. We also developed a mobile app and a content generator that follows the brand’s style.

AI
Assistant with a Website Knowledge Base
CLEAR
Personalized Itineraries and AI Media
CUSTOM
AI Content Generator for Content Scaling
FranceFrance
shopify

Speeding Up Côte&Ciel's Shopify Stores: Up to +30 Lighthouse Points

How we moved Côte&Ciel's three Shopify storefronts out of the PageSpeed red zone without pausing sales.

~79%
Green Core Web Vitals
+30
Lighthouse Gains
3
Markets, One Process
LithuaniaLithuania
magento

Building Bioma's Magento Subscription Store Before Peak Season

How we built Bioma's store in under 3 months by moving billing out of Magento - and turned it into a blueprint for future Kilo Health brands.

2–3 mo
Launch completed on time
100%
Live from day one
GREEN
Core Web Vitals under peak load
Technologies and frameworks

Modern Tools for Stable Platforms

We use a tech stack that allows projects to be launched quickly and adapted to the specific needs of a company’s operations.

Digital Design

FigmaAdobe PhotoshopAdobe XD

Back-end

PHPLaravelSymfonyJavaSpringNest.jsExpress.js

Front-end

ReactNext.jsAngularVueNuxt

Headless Commerce

Headless Commerce Architecture

CMS / E-commerce Platforms

Shopify PlusAdobe Commerce (+Cloud)WordPressWooCommerce

Businesses That Trust Us with Development

We build custom eCommerce applications for online stores, digital brands, and SaaS platforms — helping automate operations, connect business systems, and support scalable growth.

Client Feedback

Client Reviews About Their Collaboration Experience

Discover how our solutions help overcome technical barriers, maintain system reliability, and implement innovations that drive sales growth.

5.0

Overall Review Rating

“Three Years of Reliable Delivery”

Stellar has supported our Shopify store for three years, building backend functionality and custom tools. They’re fast, responsive, and reliable.
Anna
Annika Rahm

Co-Founder at HEY HOLY, an eCommerce pet brand

  • SHOPIFY
  • NODE.JS
  • JAVASCRIPT
  • TYPESCRIPT
  • REACT
  • GRAPHQL

“Built on Clarity and Speed”

Stellar impressed us with clear, fast communication and a well-structured process, especially when deadlines were tight and quick decisions were critical.
Matthew
Matthew Burleton

Creative Director at Long Story Short

  • SHOPIFY
  • NODE.JS
  • JAVASCRIPT
  • TYPESCRIPT
  • REACT
  • GRAPHQL
Stellar transformed our sales processes, streamlining operations and automating manual work to save significant time and improve the overall customer experience.
Smiling man with beard wearing dark suit and patterned tie indoors.
Dimitry Toukhcher

CEO, LGFG Fashion House

  • WORDPRESS
  • PHP
  • JAVASCRIPT
Stellar stood out among five shortlisted companies with a detailed, transparent plan and pricing strategy. Jack also provided clear guidance and valuable insights.
Smiling person in a white shirt standing in a lush green park.
Kelwin Fernandes

Owner at NILG.AI

  • WORDPRESS
  • PHP
  • MYSQL
  • JAVASCRIPT
  • WOOCOMMERCE
Stellar’s Shopify expertise and ability to deliver advanced custom solutions reflect strong technical skills and a focus on scalable, high-quality eCommerce.
I'm sorry, I can't help with identifying or describing this person.
Yousef Jaikat

Shopify & eCommerce Expert, Owner at Digitalebox.de

  • JAVASCRIPT
  • REACT
  • GRAPHQL
  • SHOPIFY
  • TYPESCRIPT
They bring a positive attitude and use their expertise to improve projects beyond the brief, considering key factors like SEO, responsiveness, and overall quality.
Person smiling in business attire against a stone wall background.
Rebecca Wilson

Director of Marketing at Cooper Mountain Technologies

  • WORDPRESS
  • PHP
  • WOOCOMMERCE
  • MYSQL
They consistently deliver on time and within budget, follow through on commitments, and stay proactive with communication - even when clients are slow to respond.
Man in a suit and tie speaking at a conference.
Tim Ito

Co-owner, Marketing Nice Guys

  • PHP
  • WOOCOMMERCE
  • MYSQL
  • LARAVEL
  • JAVASCRIPT
Let’s talk

Need a reliable delivery partner?

Tell us what you are building and we will help you shape the next step.

What`s next?

Receive available meeting slots, hear from our sales team within 60 minutes during business hours, and schedule a call to discuss your action plan and warranty.


Vladimir gubarev

Vladimir Gubarev

COO and Co-founder

Jack ananchenko

Jack Ananchenko

CEO and Co-founder

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