Software engineer at the office of a company providing application modernization services

Legacy Modernization and Migration

Leverage our legacy system migration & software modernization services to transform your legacy software and address your current and upcoming business needs, yielding improved performance and future readiness

Our Software Enhancement Services Include

DevOps works on legacy application migration
22  Years

Of Global Delivery Experience

We boast
95 %  CSAT

Among our Clients, Including Fortune 500 Brands

Legacy System Modernization with Us

Decades of Hands-on Experience

We successfully delivered dozens of legacy transformation & migration projects.

Our team knows all the hidden pitfalls & how to bridge those for optimal value.

Dedicated Competence Center

We follow tech advancements & verify their applicability to a real-life business.

Keeping trends & practicality wisely balanced in each unique modernization case.

Business-oriented Approach

We strongly focus on solving business problems instead of just fulfilling tasks.

Hence, our team always sticks to applying healthy legacy modernization approach.

Smart Legacy Replacement

Legacy application modernization isn’t always about complexity, big budget, etc.

We use proven tools & innovative solutions to ensure seamless transformation.

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Learn how our team would solve your business problem

Enterprise App Modernization Consulting

Legacy System Assessment

Technologies keep advancing, and businesses eventually face the need to modernize their outdated systems. At this point, legacy assessment is a primary mandatory step. It provides a comprehensive understanding of existing functionalities, dependencies & bottlenecks, helping to properly build the legacy modernization strategy and facilitate a smooth transition.

As a legacy application modernization company, we evaluate your software from all the critical angles: UX, technical excellence, alignment with business needs & maintainability. We look at business needs your system solves and technical approaches used to identify its strengths and weaknesses, assess their business impact, and provide suggestions on how to address those and improve system efficiency.

Legacy Application Migration Strategy

Our team understands that every legacy migration journey is unique and shaped by the specific needs and constraints of an organization. Hence, we closely cooperate with the stakeholders to make sure the legacy system migration strategy we offer is focused on the primary business problems and aligns with business realities.

Based on your unique case, our specialists will tailor the optimal app migration plan, be it cloud adoption, platform transition, application re-engineering, or else. We have made sure our service covers all elements essential for building a solid and reliable legacy migration strategy, from target architecture and infrastructure envisioning to migration roadmap creation and risk management.

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Related Cases
Created & Implemented an E-com Platform Migration Strategy for a Global B2B TruckShop

Analyzed the setup, formed an optimal migration plan, and migrated the platform that actively operated on 30+ markets & 10K dealerships globally to a modern solution in just 4 mos.

Isolated Apps Consolidation Strategy for Simultaneous Updates & Better Scalability

Existing ecosystem review, creating a legacy system modernization strategy & transferring 1K+ church apps to a single platform with architecture facilitating simultaneous updates.

Learn more
Technical Assessment of 20+ Customer Systems and Digital Transformation Plan

We completed a tech review, envisioned a new solution fully automating core processes & information flows, and created a phase-out plan for gradually replacing legacy systems.

Planning and Budgeting Systems Decommissioning Strategy for a World-known Airline

We analyzed relations between end systems, envisioned, and planned their consolidation into a completely new solution with a more modern infrastructure and extended functionality.

Legacy App Modernization Services

Application Enhancement Services

Rip-and-replace approach to legacy modernization doesn’t fit all cases and can lead to additional cost and time-to-value risks for businesses. Therefore, we build our system modernization plans by keeping a balance between business needs and budget/time/technical constraints.

Our goal is to implement targeted modifications to efficiently resolve specific issues in your existing software. We focus on improving your software with as little time & effort yet as much value as possible. Thus, we boost performance and extend the life of your software, offering a budget-friendly option compared to replacing the whole system.

Legacy System Phase-out

As a rule, legacy software is what usually holds back evolutionary growth and continuous delivery. While still functional, these solutions are often not scalable, cannot integrate with new technologies, and come with friction points affecting business operations. All of it leads to numerous drawbacks like high maintenance costs, technical issues, inability to add new features, security risks, etc.

We offer complete application reengineering services to address any challenges you might have with your existing solution at the root. We will help you build a new system that does everything the old one did, but also meets your current business needs, performs better, is ready to scale with you, and has a better look and feel.

Symbol of technological change
Related Cases
Legacy Airline Budgeting Systems Replacement Yielding 50% IT Costs Reduction

Our team replaced outdated budgeting systems and modules with modern & cost-efficient custom solutions, as well as took over support & maintenance of 10 internal systems in total.

Learn more
Legacy System Phase-out and Functionality Enhancement for Telematics Wireless

We featured the IoT Platform for smart city lighting management with a new scalable architecture and helped extend the ecosystem with a commissioning tool for field technicians.

Learn more
Migration of 30 Modules from FoxPro to Microsoft .NET System with Modular Architecture

We helped a Real Estate ERP vendor lower product maintenance & enhancement cost by replacing their obsolete system and taking over further evolutionary development of the product.

Legacy Application Migration

Legacy to Cloud Migration

Moving legacy systems to the cloud is a strategic step towards enhanced efficiency, scalability, and security. Cloud technologies not only allow you to modernize your infrastructure but also pave the way to the agility and innovative potential of cloud computing.

As partners with major cloud providers (AWS, Azure Сloud & GCP), we tailor legacy software migration strategies to benefit from the abilities each platform offers while safeguarding smooth transfer with minimum disruption. Our skilled team performs migrations of any complexity, covering the migration to both single-cloud and multi-cloud infrastructures.

Go to cloud migration services

Monolithic to Microservices Migration

Migration from a monolithic to a microservices architecture is a perfect choice for businesses facing challenges with system complexity, development speed & scalability limitations. Hence, microservices adoption will give you faster deployment, easier maintenance, and better adaptability to changing business needs.

Our engineers have hands-on experience in transforming large-scale, monolithic systems into microservice-based architectures. We will carefully segment your solution into smaller, manageable services that operate independently yet cohesively. This transition will not only boost your system performance and reliability but also align your infrastructure with modern, agile development practices.

Symbolic cloud with gears
Related Cases
Infrastructure Migration to DigitalOcean Resulting in 30% Lower Maintenance Costs

Performed travel app infrastructure optimization and migration from GCP to DigitalOcean that safeguarded lower infrastructure costs with no compromise on solution performance.

Mikz Platform Migration onto Easy-to-maintain & Cost-efficient MS Azure Infrastructure

We planned & performed migration of the complex solution that includes platforms and mobile apps for content management to Azure Cloud, reaching x5 lower infrastructure costs.

Learn more
Consultant outlines legacy modernization strategy on flipchart

Application Rationalization Through

We reduce software complexities without compromising functionality by integrating disparate software components into a cohesive, optimized solution.
We help with:
  • Analysis of the business needs, existing ecosystem components, and their relations
  • Optimization strategy creation and new solution envisioning
  • Consolidating different components serving the same objective into a coherent, cost-efficient solution that yields better performance
As a software modernization company, we specialize in transforming legacy systems into agile, future-proof platforms, integrating the latest tech advancements.
We help with:
  • Moving infrastructures from on-premises to the new, cloud-based ones
  • Migrating from monolith to microservices architecture
  • Implementing the latest technologies, best practices, and tools
  • Facilitating seamless integration with more advanced systems and technologies
Our team will also help you upgrade existing systems pointwise by adding new functionality and implementing adjustments to eliminate known incidents & issues.
We help with:
  • Extending solution with new features and functionality
  • Fine-tuning existing software for peak efficiency and reliability
  • Removing existing bottlenecks and vulnerabilities
  • Streamlining UI/UX for more intuitive, user-friendly interactions

Legacy Software Transformation

DevOps & Infrastructure

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Our DevOps transformation consulting specialists will help you not only build agile, responsive, and resilient IT infrastructure, but also implement the best DevOps practices for maximum automation, efficient infrastructure management, and streamlined deployment.

We do:
  • Build secure and scalable hybrid, single-, or multi-cloud infrastructures
  • Configure advanced CI/CD pipelines for shorter time-to-market
  • Reduce manual effort & increase operational efficiency by implementing advanced tools like Docker and Kubernetes
  • Implement IaC approach to automate and streamline infrastructure management
Database symbols showing data migration

We continuously expand our data modernization services with diverse data engineering expertise to not only efficiently optimize your existing data management solution but also to help you transform the way you work with data to leverage maximum value from your data assets. 

We do:
  • Creating data synchronization pipelines for incoming data
  • Data pipelines re-architecting with Modern Data Stack
  • Efficient data mapping between legacy & modern solution
  • Cost optimization for data infrastructure
  • Data sources inventorization to be up-to-date in new solution
  • Transferring reports/charts from legacy systems via BI tools
Re-engineering representation

Our experts will help you get rid of from the outdated code and enhance existing functionality to make sure your software not only meets your current efficiency, scalability & performance standards but also aligns with business requirements you might have in future. 

We do:
  • Refactoring legacy code using advanced programming methodologies
  • Performance optimization through applying caching, database optimization, efficient memory management, etc.
  • Scalability improvement by applying scalable architectures like microservices
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We base our design strategies on the user-centered approach, prioritizing intuitive navigation, engaging design, and accessibility. Our UI/UX redesign experts will make sure your application looks modern and is aligned with the recent UX trends.

We do:
  • Responsive design implementation
  • Interfaces customization based on real user data
  • User paths simplifying for intuitive navigation
  • Visual overhaul by refreshing graphics & color schemes
  • Compliance to the latest accessibility standards to ensure usability for diverse user groups
Technologies background

Technologies we Work with

.NET Core
React JS
MS SQL Server
MS Azure
Azure DevOps
Misty mountains

Our RTP Philosophy and Vision


  • Focus on helping you achieve your business goals - both current and long-term
  • Battle-tested processes ensuring uninterrupted service & robust quality control
  • Rigid quality control with a range of KPIs to track delivery quality and efficiency


  • Regular status updates & reporting at different management levels
  • Clear, predictable, and consistent billing with full expenditure reports
  • PM tools of your choice (Jira, Confluence, Azure DevOps) & clear project flow tracking


  • Tailor-made solutions & focus on delivering value, not just performing the tasks
  • Finding new ideas & the most effective solutions for your individual case
  • Continuous optimization and enhancement of service delivery & performance
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Our Offices

Munich, Germany

Design Offices München Atlas, Rosenheimer Str. 143C, 81671 Munich, Germany
Nurnberg, Germany

Design Offices Nürnberg City, Königstorgraben 11, 90402 Nürnberg, Germany
Poltava, Ukraine

Sobornosti Street, 46В, Poltava, Poltava Oblast, Ukraine
Cherkasy, Ukraine

Sigma Software, Cherkasy Office
Priportova Street, 22A, Cherkasy, Cherkasy Oblast, Ukraine
Sao Paulo, Brasil

Sigma Software, Brazil office
Rua Purpurina, 400, 7º Floor, Vila Madalena, São Paulo, Brazil

(11) 3197-0269
Lisbon, Portugal

Sigma Software, Lisbon Office
Rua da Junqueira 218/220 R/C 1300-598, Lisbon
Budapest, Hungary

Budapest Office, Közraktár u. 30-32, Building K30, 1093 Budapest, Hungary
Sofia, Bulgaria

Sigma Software Sofia
bulevard "Cherni vrah" 51, 1407 Promishlena zona Hladilnika, Sofia, Bulgaria
Burgas, Bulgaria

Sigma Software Bulgaria
ul. "Sveti Sveti Kiril I Metodiy" 5, 8000 Burgas Center, Burgas, Bulgaria
Ivano-Frankivsk, Ukraine

Sigma Software, IF Office
Nadrichna St, 6, Ivano-Frankivsk, Ivano-Frankivsk Oblast, Ukraine

+38 (050) 782 47 67
Prague, Czech Republic

Sigma Software, Prague Office
Evropská 11/2758, Praha 6, Česká republika
Krakow, Poland

Sigma Software, Krakow Office
Wadowicka 7, 30-347 Kraków, Poland
Poznan, Poland

Sigma Software, Poznan Office
Zwierzyniecka 3, Concordia Design, 60-813 Poznań, Poland
Lutsk, Ukraine

Sigma Software, Lutsk Office
Artseulova St, 2, Lutsk, Volyn Oblast, Ukraine
Uzhgorod, Ukraine

Sigma Software, Uzhhorod Office
Bohomol'tsya Street, 21, Uzhhorod, Zakarpattia Oblast, Ukraine

+38 (067) 742 06 29
Ternopil, Ukraine

Sigma Software, Ternopil Office
15 Kvitnya Str., 2m, Ternopil, Ternopil Oblast, Ukraine

+380 (67) 350 96 63
Cascais, Portugal

Sigma Software, Cascais Office
office 1.23, Estr. Malveira da Serra 920, 2750-834 Cascais, Portugal
Chernivtsi, Ukraine

SIgma Software, Chernivtsi Office
Storozhynetska 25, 2 floor, Chernivtsi, Chernivtsi Oblast, Ukraine

+38 (067) 287 41 13
Buenos Aires, Argentina

Avenida del Libertador 1000, Vicente López, Buenos Aires Province, Argentina

Mexico City, Mexico

Av. Paseo de la Reforma 296, Juárez, 06600 Ciudad de México, Mexico City, Mexico

Medellin, Colombia

Business District Golden Mile, Calle 4 Sur, Medellin, Antioquia, Colombia


Sigma Software Pte. Ltd. 20 Collyer Quay
#09-01 Singapore
Dubai, UAE

Sigma Software, Dubai Office
Bay Square Buildings, Unit 121, Level P, Building 7
Bay Square, Business Bay, Dubai, UAE, PO Box- 238605

+971 (0) 56 216 5922
Shoham, Israel

Sigma Software Inc.
Mitzpe 28, Shoham, Israel
Montréal, Canada

Sigma Software Group, Montréal office
25075 Rue Queen, Suite 1100, office 136, Montreal, Canada

Melbourne, Australia

Sigma Software, Australia Office
Level 1, 3 Wellington Street, St Kilda, Victoria 3182, Australia
Macclesfield, UK

Sigma Consulting Solutions Ltd.
The Ropewalks, Newton Street, Macclesfield, Cheshire SK11 6QJ, UK

+44 (1625) 427–718
Linz, Austria

SIgma Software
Kopernikusstrasse 22, EDV Consulting Bureau, Linz A-4020, Austria
Gothenburg, Sweden

Sigma Sweden Software AB
Lindholmspiren 9, Gothenburg 5 417 56, Sweden

+46 70 600 42 49
Stockholm, Sweden

Sigma Sweden Software AB
Hornsgatan 1, Stockholm 118 46, Sweden

+46 70 600 42 49
Los Angeles, USA

Sigma Software Inc.
410 N La Cienega, West Hollywood, CA 90048, USA

Bellevue, USA

Sigma Software Inc.
10400 NE 4th St., Suite 500, Bellevue, WA 98004, USA

New York, USA

Sigma Software Inc.
900 3rd Ave, 29th Floor, New York NY 10022, USA

San Jose, USA

Sigma Software Inc.
1484 Saratoga Ave, Saratoga, San Jose, CA 95070-3612, USA

Warsaw, Poland

Sigma Software, Warsaw Financial Center
Emilii Plater 53, floor 24, 00-113, Warsaw, Poland
Dnipro, Ukraine

Sigma Software, Dnipro Office
53 Sicheslavska Naberezhna Street, Dnipro 49000, Ukraine

+38 (093) 025 35 70
Sumy, Ukraine

Sigma Software, Sumy Office - Temporally relocated
13a Voskresenska Str., Sumy 40000, Ukraine

+38 (098) 210 01 64
Vinnytsia, Ukraine

600-Richchya Street 1, Vinnytsia, Vinnytsia Oblast, Ukraine, 21000

+38 (050) 782 47 67
Odesa, Ukraine

Sigma Software, South Office
7 Lekha Kachynskoho Str., BC Hitech Park Odessa 3rd floor, Odesa 65026, Ukraine

+380 (48) 737–5023
Lviv, Ukraine

Sigma Software, Lviv Office
7d Naukova Str., BC Optima Plaza 4th floor, Lviv, 79060, Ukraine

+380 (67) 742-06-29
Kyiv, Ukraine

Sigma Software, Kyiv Office
58 Yaroslavska Str., BC Astarta, 7th floor, Kyiv, Ukraine
Kharkiv, Ukraine

Sigma Software, Corporate Headquarters - Temporally relocated
Akademika Proskury St, 1, Kharkiv, Kharkivs'ka oblast, Ukraine, 61000

+38 (067) 510 62 08