Hire the Best Enterprise Software Developers
in Ukraine

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
4.5/5
of Upwork by G2 peer reviewers

Maksym G.

Java / Angular / .Net / Senior Fullstack Developer | AWS | Azure

Chernivtsi, Ukraine
$33 per hour
70 jobs
$600K+ total earnings

I am a Senior Fullstack Developer with over 15 years of hands-on experience in building and scaling Java , C# / Net , Angular applications for startups, enterprises, and SaaS platforms. Currently, Iโ€™m working as the Chief Technology Officer at InventorSoft, a software development agency specializing in web and mobile solutions. I bring a strategic mix of technical depth, team leadership, and product vision to every project. Why hire me๐Ÿง: ๐Ÿ“Œ Expert in Scalable Java and .Net Architectures - Over 15 years of experience in developing Java, .Net, C#, Angular scalable applications from different domains. - Backend systems built with Spring Boot (15+ years) โ€“ Delivered scalable microservices and high-performance business logic for enterprise-grade applications. - ORM & data access with Hibernate โ€“ Applied advanced ORM techniques for efficient database interactions, query optimization, and data integrity in distributed systems. - Frontend development with Angular & Thymeleaf Designed and delivered 200+ robust backend systems for SaaS products, e-commerce platforms, and enterprise clients. ๐Ÿ“Œ Cloud-Native Platform Engineering Specializes in building secure, scalable, cloud-native platforms using leading cloud providers: - 8+ years of production experience with AWS โ€“ Deployed scalable, secure, and high-availability applications. - 9+ years of hands-on Azure expertise โ€“ Delivered enterprise-grade solutions with Azure App Services, Azure DevOps, and SQL/Azure Storage. - 5+ years of experience on Google Cloud Platform (GCP) โ€“ Built and deployed containerized microservices using GKE, Cloud Run, and Firebase. ๐Ÿ“Œ API-First & Cloud-Native System Design - Strong background in API integration and microservice architecture. - Created high-performance APIs for platforms serving 50K+ users, ensuring seamless third-party integration and scalability. - Experienced in Docker & Kubernetes, enabling CI/CD pipelines and resilient containerized systems. ๐Ÿ“Œ Full-Stack Leadership & Agile Team Management - Led and mentored teams of 5โ€“25 developers through all stages of the SDLCโ€”requirements gathering to deployment and maintenance. - Specialized in building cross-functional teams for backend-heavy systems, modern UIs (React, Angular, Thymeleaf), and DevOps automation. My latest achievement as a Software Architect: ๐Ÿค Partnered with 45+ SaaS companies to design and deliver secure, scalable platforms using Spring Boot, AWS, and modern cloud services. ๐Ÿš€ Helped 10 tech startups scale from MVP to productionโ€”selecting the right tech stack, defining cloud-native architecture, and assembling strong dev teams. ๐Ÿ’ผ Enabled 5 client acquisitions through the development of enterprise-grade software that attracted major buyers and investors. ๐Ÿญ Led a digital transformation project for a multi-billion-dollar oil company, delivering a secure, API-first platform that automated mission-critical operations. ๐Ÿงฉ Technologies I Specialize In - Languages/Frameworks: Java, C#, .Net, Spring Boot, Hibernate, Thymeleaf, .Net Core - Cloud Platforms: AWS (8+ years), Azure (9+ years), Google Cloud (5+ years) - DevOps Tools: Docker (7+ years), Kubernetes (5+ years) - Integration & Architecture: RESTful API integration, microservices, clean architecture, CI/CD pipelines Clients that I am proud of: ๐Ÿ’ป Shoeby โ€“ A fashion retail platform focused on modernizing the e-commerce experience with intuitive UI, product personalization, and seamless shopping journeys. ๐Ÿ’ป CellRebel โ€“ Provides advanced mobile network analytics, helping telecom companies improve coverage and performance based on real user data. ๐Ÿ’ป Blade โ€“ A technology-powered aviation company offering urban air mobility services, including helicopter and seaplane flights. ๐Ÿ’ป Matics โ€“ A real-time operational intelligence system for manufacturers, offering production insights and process optimization across the factory. ๐Ÿ’ป MedischeScholing โ€“ A medical e-learning platform that enables healthcare professionals to access, register for, and track accredited training and certifications. โžก๏ธ Learn more about other projects on the InventorSoft portfolio Keywords: Java, Backend, Developer, Fullstack, Web, Cross-Platform, Mobile, Application, AI, OpenAI, Service, App, Development, Engineer, Integration, Build, Website, Expert, Spring boot, MySQL, Development Team, Integrated, SaaS Platform, remote, Full-stack, Senior, Software, Client Management, GraphQL, API, .NET, Asp.net, Programmer, Technical Lead, Dashboard, MVC, Developers, ASP.NET, AspNetZero, core, software, MAUI, C#, Angular, .Net, Core, Principal, Performance, Scalability, Microsoft, Blazor, SQL, Server, Frontend, React, Ruby on Rails, RoR/React, front-end, Tailwind, feature, TailwindCSS, Technical Staff, JavaScript, ROR

Vadym K.

Full Stack .NET Developer | ASP.NET Core | SaaS Software Developer

Lviv, Ukraine
$35 per hour
56 jobs
$1M+ total earnings

With 8+ years of experience in software development, I've delivered 35+ projects across various industries: fintech, healthtech, energy, industrial, maritime, defense, real estate, asset management, e-commerce, enterprise workplace platforms, and SaaS. I work as a Full Stack .NET Developer, building software, web applications, desktop and Windows applications, backend systems, RESTful APIs, and internal platforms that handle real production load, owning delivery from database design to deployment, release, and ongoing new features after launch. ๐Ÿค I work with a reliable team, so we can fill any role on your project and become long-term partners. Don't hesitate to reach out, just tell me your required tech stack and budget :) ๐—™๐˜‚๐—น๐—น-๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜ As a Full Stack .NET Developer, I've built React, Angular, and Next.js on frontend and .NET, Node.js on backend. One example is e-commerce fulfillment, where we integrated barcode scanning, inventory management, and multiple shipping-provider APIs, cutting order processing time by 35% and reducing packing errors close to zero. Another example is real-time monitoring frontends for industrial hardware, built for large-scale infrastructure projects where live data visualization replaced delayed manual checks. ๐—ฆ๐—ฎ๐—ฎ๐—ฆ ๐—ฆ๐—ผ๐—ณ๐˜๐˜„๐—ฎ๐—ฟ๐—ฒ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—ฒ๐—ฟ & ๐—Ÿ๐—ฒ๐—ด๐—ฎ๐—ฐ๐˜† ๐— ๐—ผ๐—ฑ๐—ฒ๐—ฟ๐—ป๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป As a SaaS software developer, I build asset and fleet management systems in .NET Core and Angular. One example handled large concurrent asset volumes with automated reporting that saved operations teams over 10 hours per week. I'm also experienced building B2B SaaS suites that covers time-tracking, project management, and CRM, consolidating manual labor-cost tracking into a centralized system with approval workflows, AI-assisted insights, and analytics. I'm also open to legacy platforms and existing code with no documentation and daily production fires, rebuilding them into stable systems with proper code review, sprint planning, improved navigation, and design responsiveness across devices. ๐—”๐—ฆ๐—ฃ.๐—ก๐—˜๐—ง ๐—ช๐—ฒ๐—ฏ ๐—”๐—ฃ๐—œ & ๐—ช๐—ฒ๐—ฏ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜ I build platforms on ASP.NET Core, ASP.NET Web API, EF Core, PostgreSQL, and Azure that automate complex business workflows end-to-end. One example is a lending and compliance system, where we integrated external CRM, pricing, and compliance services to replace manual data entry, cutting hours of manual processing per case. I'm also experienced modernizing legacy asset management systems and existing code for enterprise and defense clients using ASP.NET MVC, SQL, and Entity Framework, one such rebuild reduced manual reporting time by 70% while enabling real-time tracking and secure handling of sensitive operational data. ๐—–# & .๐—ก๐—˜๐—ง ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ I optimize Microsoft SQL Server and PostgreSQL queries on reporting-heavy systems, one example reducing execution times by 60-80%. I'm also experienced designing microservices architectures on Microsoft Azure with automated CI/CD pipelines that cut release time by up to 50% for an enterprise client. Beyond .NET, I work with Python and Node.js for scripting layers, and Git and Docker for containerized, repeatable deployments. ๐—ง๐—ฒ๐—ฐ๐—ต ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ: โœ… Backend: .NET/C#, ASP.NET Core, ASP.NET MVC, ASP.NET Web API, .NET Framework, Python, Node.js โœ… Frontend: Angular, React, Next.js, TypeScript, JavaScript, HTML, SCSS โœ… Database: Microsoft SQL Server, PostgreSQL, SQL, Entity Framework Core โœ… Cloud & DevOps: Microsoft Azure, Azure SQL, Azure Key Vault, Docker, Microservices, CI/CD, Git, Windows โœ… Other: API Integration, RESTful APIs, Agile Development, AI integration I take ownership of delivery end-to-end โ€” coordinating with stakeholders, and managing timelines and priorities so the project moves forward even when requirements shift. ๐—ช๐—ต๐˜† ๐—–๐—น๐—ถ๐—ฒ๐—ป๐˜๐˜€ ๐—–๐—ผ๐—บ๐—ฒ ๐—•๐—ฎ๐—ฐ๐—ธ I ask the right questions before writing the first line of code, flag problems early, and deliver reliable software development as a Full Stack .NET Developer and SaaS software developer. Whether it's a greenfield SaaS platform, a real estate or asset management system, an ASP.NET Core, Web API-driven enterprise system, or a legacy codebase that needs modernizing, I treat every engagement like it's going into production tomorrow. ๐Ÿค Let's talk. I'm open to long-term collaborations as a Full Stack .NET Developer doing ASP.NET Core Web API development, SaaS software development, backend systems, enterprise platforms, microservices, web and desktop applications, plus API integration, database optimization, AI integration, and legacy system modernization. If you need a Full Stack .NET Developer or SaaS software developer who ships reliable platforms, let's talk.

Viktor I.

Extensive experience in Software Application Development

Dnipro, Ukraine
$15 per hour
3 jobs

I am Agency Header, Project and Account Manager Our Team have a huge Experience in Application Software Development and Intersystem integration: โ€ข AI - implementation โ€ข Back-End Development โ€ข Front-End Development โ€ข Oracle Application and DataBase Development โ€ข Web Development โ€ข Mobile App Development We are working in Software Stack: โ€ข C#, ASP.NET and .NET Framework โ€ข Java โ€ข Angular โ€ข React and React Native โ€ข LLM, Machine Learning and Prompt Engineering โ€ข Next.js โ€ข Expo We provide Outsourcing and Out-staffing service for our customers around the World Personal Summary: โ€ข About 15 years of business application development โ€ข 5+ years Oracle Products Implementation and database development experience โ€ข Work in outsourcing and CIS projects โ€ข More then 7 years experience on managing positions: Header of software development center and company โ€ข Strong problem-solving and communication skills โ€ข Experience work with client request and sales support โ€ข Managing of development process โ€ข Team so-cooperation โ€ข Clear understanding of all stages in software development โ€ข Good background in requirements and support documentation โ€ข Good attention to details โ€ข Experience in ISO Certification Main Background: โ€ข Operation manager โ€ข Resources and Budget planing โ€ข Oracle Application and Database Developer, โ€ข Project manager โ€ข Head of HR Technical Skills: โ€ข Business application development: Oracle Application and Database โ€ข QA Automatisation โ€ข Infrastructure architecture development

Bohdan N.

Java developer | Backend Developer | AWS Developer | AI developer

Vinnitsa, Ukraine
$35 per hour
21 jobs
$40K+ total earnings

I can build almost anything with Java and AI but my family assumes that includes fixig their Wi-Fi, printer, and TV๐Ÿ˜… I'm a Java developer with 8+ years delivering production-grade systems from serverless AWS architectures to distributed microservices serving healthcare and fintech clients. ๐—ช๐—ต๐—ฎ๐˜ ๐—œ'๐˜ƒ๐—ฒ ๐—•๐˜‚๐—ถ๐—น๐˜ โžก As lead Java developer at my current company, managed a team of 8 engineers over 7 years โ€” delivering 4 production systems across healthcare, fintech, and AI verticals. โžก Designed serverless AWS infrastructure for a US longevity and healthcare platform as an AWS developer โ€” Lambda, AppSync, DynamoDB, Cognito, SNS/SQS, Stripe, HubSpot currently in production. โžก Led migration from monolithic Spring apps to distributed microservices โ€” reducing deployment complexity and enabling independent scaling per service. โžก Built a PDF/UA accessibility compliance platform as backend developer using Java 21, iText 7, PDFBox, veraPDF processing and remediating documents of hundreds of pages against international accessibility standards. โžก Delivered an AI-powered workflow automation platform as an AI developer integrating Spring AI, Azure cloud, and automated Stripe subscription workflows. โžก Shipped a medical practitioner dashboard integrating 3rd-party hardware APIs and clinical toolkits as backend developer and tech lead serving real patients and practitioners in production. Core experience as a Java developer and Backend developer As a Java developer with 8+ years in production systems, my core is Java 8 through Java 21 with the full Spring ecosystem Boot, Cloud, Security, WebFlux, Batch, and Spring AI for AI-integrated backends. I work across both relational (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB, Redis) databases, selecting the right store based on access patterns not habit. As a backend developer I've optimised slow MongoDB queries to cut response times, redesigned DynamoDB access patterns for a high-throughput healthcare API, and built Redis caching layers that kept latency flat under load. As an AWS developer, my hands-on stack covers Lambda, AppSync, DynamoDB, Cognito, SQS, SNS, SES, S3, API Gateway, Route 53, and CloudFormation built and maintained in a live US healthcare platform. I design serverless pipelines end-to-end, not just deploy to them. For async workloads I wire event-driven systems using Kafka, RabbitMQ, or AWS SNS/SQS depending on durability and throughput requirements. On the container side: Docker, Kubernetes, Helm, OpenShift, Terraform, and Jenkins full IaC from infrastructure definition to CI/CD pipeline. As an AI developer, I've shipped Spring AI integrations for workflow automation backends, built document intelligence services capable of processing and remediating hundreds-of-pages PDFs against accessibility standards, and connected GraphQL APIs via AWS AppSync for mobile and web AI-driven applications. I also have production experience integrating medical hardware APIs, Stripe subscription billing, and HubSpot CRM sync into Java backends the kind of third-party integration work every backend developer eventually owns in a real product. AWS Developer & ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด โœ… Currently operating as AWS developer on a live healthcare platform Lambda, AppSync, DynamoDB, Cognito, SQS/SNS/SES, S3, API Gateway, Route 53, CloudFormation โœ… Experience as AWS developer across serverless, containerized (ECS/K8s), and IaC (Terraform, CloudFormation) environments โœ… Also experienced across Azure (AKS, Azure DevOps) and GCP as multi-cloud backend developer โœ… Kubernetes, Helm, Docker, OpenShift, Jenkins, Terraform the full DevOps chain every AWS developer deploys through AI developer ๐—–๐—ฎ๐—ฝ๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐—ถ๐—ฒ๐˜€ โœ… Delivered AI-powered backend services as AI developer using Spring AI automated content generation and workflow orchestration at scale โœ… AWS AppSync + DynamoDB + Cognito pipeline for a live healthcare platform: the architecture an AI developer builds when latency and data integrity are non-negotiable โœ… Experienced AI developer integrating third-party AI tooling with enterprise Java backends designing event-driven pipelines that handle async AI workloads via Kafka and SQS โœ… As AI developer, built document intelligence features automated PDF tagging, structure remediation, and accessibility validation across large document corpora ๐—œ๐—ป๐—ฑ๐˜‚๐˜€๐˜๐—ฟ๐—ถ๐—ฒ๐˜€ Healthcare ยท Fintech ยท SaaS ยท E-commerce ยท Logistics ยท Telecom ยท IoT ยท Blockchain ยท Automotive ยท Media ๐—ฆ๐—ฝ๐—ฒ๐—ฐ๐—ถ๐—ฎ๐—น๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€ & ๐—ฅ๐—ผ๐—น๐—ฒ๐˜€ โœ” Senior Java Developer ยท Java Spring Boot Developer ยท Java Backend Developer โœ” AWS Cloud Engineer ยท AWS DevOps Engineer โœ” Azure Cloud Engineer ยท Google Cloud Engineer โœ” AI Backend Developer ยท Full-Stack Developer (Spring Boot + React) โœ” AI Backend Developer ยท Full-Stack Developer (Spring Boot + React) Need a Java developer, backend developer, AWS developer, or AI developer who ships production systems? Drop me a message 24/08/2026

How it works

Post a job for freePost a job

Tell us what you need. Create your own job post or generate one with AI then filter talent matches.

Hire top talent fast

Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.

Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

Payment simplified

Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.

Don't just take our word for it

How do I hire a Enterprise Software Developer in Ukraine on Upwork?

You can hire a Enterprise Software Developer in Ukraine on Upwork in four simple steps:

  • Create a job post tailored to your Enterprise Software Developer project scope. We'll walk you through the process step by step.
  • Browse top Enterprise Software Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Enterprise Software Developer profiles and interview.
  • Hire the right Enterprise Software Developer for your project from Upwork, the world's largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Enterprise Software Developer?

Rates charged by Enterprise Software Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Enterprise Software Developer in Ukraine on Upwork?

As the world's work marketplace, we connect highly-skilled freelance Enterprise Software Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Enterprise Software Developer team you need to succeed.

Can I hire a Enterprise Software Developer in Ukraine within 24 hours on Upwork?

Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Enterprise Software Developer proposals within 24 hours of posting a job description.