Jobs C# / .NET

Розробка та підтримка програмного забезпечення для автоматизації бізнес-процесів страхової компанії.

Обов'язки:

- участь в обговоренні вимог до ПЗ
- проектування окремих програмних модулів
- оцінка задач по розробці ПЗ
- розробка ПЗ
- створення технічної документації.

Знання:

— 3+ роки комерційного досвіду з C#/.NET
— Досвід з Oracle та ADO.NET; розуміння роботи з хранимою логікою (PL/SQL процедури, пакети)
— Гарні SQL-навички: впевнене написання та оптимізація складних запитів, joins, агрегації, розуміння індексів
— Впевнений досвід з WinForms (основна платформа проекту)
— Розуміння SOLID, патернів проектування та принципів Clean Architecture
— Git, досвід роботи з CI/CD (Azure DevOps — плюс)
— Англійська на рівні читання технічної документації (B1+)

Буде плюсом:

— Досвід з Blazor (Server) — напрямок, куди мігрує платформа
— DevExpress (WinForms та/або Blazor)
— MediatR, FluentValidation
— Написання unit / integration тестів (xUnit, Moq)
— Досвід у страховому-домені

Національна ІТ-продуктова компанія Linkos Group — власник брендів, багаторічний лідер з розробки бізнесового софту та рейтингових програмних продуктів для бухгалтерів та підприємців України.
 

За улюбленими брендами мільйонів — СОТА, M.E.Doc, ЦСК «Україна», ISpro, ПТАХ, FlyDoc стоять розумні, талановиті, енергійні та цілеспрямовані — справжні ІТ-фахівці.
 

Ми посилюємо свою команду і запрошуємо вас професійно зростати разом з нами, поділяючи наші корпоративні цінності.
 

Хто бажає розвиватися поруч з нами, просимо ознайомитися з вакансією C# developer.

Основні обов’язки:

Реалізація задач в поточній архітектурі M.E.Doc, оновлення компонентної бази

Реалізація задач пов’язаних з заміною інтерфейсу

Взаємодія з командою: розробниками, аналітиками, тестувальнкиами

Необхідні навики в таких технологіях:

C#

.Net Framework 4.8

.Net 8−10

DevExpress

SQL (Oracle, PostgreSQL, FireBird)

Swagger, API

Робота з JSON, xml

TCP / IP, ws, http, https

Додаткова вимога робота з:GitLab, VisualStudio

Досвід роботи загалом від 2 років, або хоча б від 6 місяців програмістом

Переваги вакансії:

Цікаві, амбітні проекти, багато складних завдань і чудова можливість реалізувати свої ідеї

Безкоштовне професійне навчання продуктам компанії

Офіційне працевлаштування в провідну IT-компанію в Україні

Регулярні тімбілдинги і корпоративні заходи

Команда професіоналів, закоханих у свою справу

Офіс біля метро Житомирська

Чекаємо резюме і ласкаво просимо на співбесіду!

Якщо є бажання розглянути вакансію і прийти на співбесіду — скоріше дайте знати про себе! Вас вітатимуть в крутій команді, гарній атмосфері і з чудовими керівниками!

Full-time Kyiv 

OSTCHEM — один із найбільших світових виробників та експортерів азотних добрив. Компанія розширює напрямок корпоративних ІТ-рішень та запрошує в команду Creatio Developer для участі у розвитку внутрішніх систем та платформ автоматизації.

Основні вимоги

• Досвід роботи із Creatio від 1 року.
• Впевнені знання C#, JavaScript, MS SQL.
• Розуміння архітектури Creatio та принципів роботи системи.
• Досвід роботи з REST API.
• HTML/CSS на практичному рівні.
• Досвід проектування реляційних БД, навички оптимізації SQL-запитів.

Буде перевагою

• Сертифікація Creatio Developer.
• Базові знання Angular.
• Досвід роботи з мобільним додатком Creatio.
• Розуміння принципів роботи брокерів повідомлень (Kafka, RabbitMQ).

Обов’язки

• Розробка нових модулів та функціональності в Creatio.
• Створення та підтримка друкованих форм і звітів.
• Підтримка та доопрацювання існуючих рішень.
• Співпраця з бізнес-аналітиком.
• Реалізація інтеграцій із внутрішніми системами компанії.

Етапи відбору

Перед співбесідою кандидати проходять тестове завдання на платформі Creatio.
Завдання є обов’язковою частиною відбору і дозволяє оцінити технічні навички та готовність працювати з платформою.

Ми пропонуємо

• Роботу в стабільній міжнародній групі OSTCHEM.
• Участь у великих ІТ-проєктах корпоративного рівня.
• Можливість професійного розвитку в екосистемі Creatio.
• Сильну команда фахівців та сучасні підходи до розробки.

Хочеш застосувати свої навички у розробці, щоб зробити благодійність ефективною, сучасною та технологічною? Тоді ця можливість для тебе!
 

Charity Hero — інноваційна мобільна платформа, яку створюють волонтери за підтримки різних компаній. Задача допомогти благодійникам та фондам працювати ефективніше. Ми об’єднуємо людей, які хочуть зробити добрі справи легкодоступними та частиною повсякденного життя.
 

💡 Що ми вже зробили:
✅ $300K зібраних технологій для посилення платформи
✅ 200+ волонтерів долучилося протягом 2 років
✅ 30+ компаній та 5 благодійних фондів стали нашими партнерами
✅ 9 амбасадорів надихають та консультують нас.
 

🔥 Чому варто долучитися?

• Сенс, який відчуваєш щодня: твоя робота безпосередньо допоможе проектам, людям, тваринам та організаціям.
• Ріст і розвиток: реальні кейси, можливість працювати в команді, нові знання та практичний досвід.
• Ком’юніті однодумців: ми об’єднуємо професіоналів, які прагнуть змінювати світ.
• Свобода та гнучкість: працюємо у вільний час від роботи - досягая разом результату.
   

🎯 Кого шукаємо?

🔹 2+ років досвіду розробки на C# та .NET Framework 4.5+
🔹 Розуміння .NET (ADO.NET, LINQ, Reflection, Threading), SQL (PostgreSQL)
🔹 Досвід створення модульних та інтеграційних тестів
🔹 Вміння розробляти інтеграційні шлюзи
🔹 Розуміння патернів та принципів програмування

Буде плюсом:
🔸 Знання ServiceStack.NET, HTML, XML, JSON
🔸 Досвід у командній розробці, участь у повному циклі створення продукту

⚡ Що ти будеш робити?

• Розробляти та доопрацьовувати модулі та інтеграції для платформи.
• Створювати рішення, які допоможуть благодійним організаціям працювати швидше та ефективніше.
• Взаємодіяти з командою волонтерів, яка розробляє технології майбутнього у сфері благодійності.

📩 Готовий(-а) приєднатися? Надсилай резюме та будь готовий(-а) змінювати світ разом із нами!
 

About PredictSpring

PredictSpring is a market-leading company shaping the future of omni-channel retail and modern POS technology. We help global retail and lifestyle brands deliver seamless, modern, and data-driven customer experiences across digital and in-store channels.

We are looking for an experienced Senior C#/.NET Full Stack Engineer to join our team and help build scalable, secure, and high-performance software solutions across our platform, products, and business operations.

In this role, you will work across backend, frontend, cloud infrastructure, and deployment workflows, helping us deliver reliable enterprise-grade systems for modern omni-channel retail and POS experiences.

Responsibilities

As a Senior C#/.NET Full Stack Engineer, you will:

• Design, develop, and maintain scalable, secure, and high-performance applications using C# and .NET technologies.
• Build and maintain backend services, business logic, APIs, and application workflows that support PredictSpring’s platform and product operations.
• Develop and implement RESTful APIs to connect frontend applications, backend services, third-party systems, and internal tools.
• Work with cloud-based infrastructure on AWS and Azure to support scalable, reliable, and production-ready systems.
• Containerize applications using Docker and support deployment and orchestration workflows using Kubernetes.
• Collaborate with cross-functional teams, including product, engineering, design, operations, and business stakeholders, to deliver high-quality software solutions.
• Troubleshoot, debug, and optimize applications for performance, reliability, scalability, and maintainability.
• Write clean, efficient, maintainable, and testable code following software engineering best practices.
• Participate in code reviews, technical discussions, architecture decisions, and continuous improvement of development standards.
• Implement and improve CI/CD pipelines to streamline build, testing, deployment, and release processes.
• Ensure security, data protection, and reliability across applications, services, APIs, and cloud environments.
• Work with SQL and NoSQL databases to design, query, optimize, and maintain data-driven application features.
• Stay current with modern software engineering, cloud, DevOps, and full stack development practices, and apply relevant improvements to PredictSpring’s platform and operations.

Requirements

We are looking for someone with:

• Excellent communication skills, including fluent verbal English, with the ability to explain technical concepts clearly and collaborate effectively across distributed teams.
• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Information Technology, or a related field.
• Proven experience as a Full Stack Engineer or Full Stack Developer, with strong hands-on experience in C# and .NET technologies.
• Strong experience designing, building, and maintaining scalable backend systems, APIs, and enterprise-grade applications.
• Solid understanding and hands-on experience with AWS and Azure cloud services.
• Expertise in containerization and orchestration technologies such as Docker and Kubernetes.
• Strong experience with SQL and NoSQL databases, such as SQL Server, MongoDB, or similar technologies.
• Experience building and consuming RESTful APIs and integrating frontend and backend systems.
• Familiarity with frontend technologies such as JavaScript, React.js, Angular, or similar frameworks.
• Strong understanding of software architecture, clean code principles, debugging, performance optimization, and maintainable system design.
• Knowledge of version control systems such as Git.
• Familiarity with agile development methodologies, sprint-based workflows, and collaborative engineering practices.
• Experience with CI/CD processes and modern deployment pipelines.
• Strong problem-solving skills and the ability to analyze, debug, and resolve complex technical issues.

Preferred Qualifications

Nice to have:

• Experience with microservices architecture and distributed system design.
• Experience with serverless computing and cloud-native application development.
• Familiarity with DevOps practices and infrastructure-as-code tools such as Terraform.
• Understanding of cloud-native security services, application security, authentication, authorization, and data protection best practices.
• Experience with testing frameworks, including unit testing, integration testing, and UI testing.
• Experience working with high-traffic, scalable, customer-facing SaaS or enterprise platforms.
• Experience supporting production systems, monitoring application health, and improving reliability over time.
• Experience in retail, e-commerce, omni-channel commerce, or POS technology is a strong plus.

Why PredictSpring?

• Join a market-leading company shaping the future of omni-channel retail and modern POS.
• Work on high-impact engineering challenges at the intersection of commerce, cloud technology, and customer experience.
• Collaborate with a talented global team in a flexible remote work environment.
• Enjoy opportunities for growth, learning, and professional development.
• Contribute to products used by some of the world’s most recognized retail and lifestyle brands.
• Be part of an innovative, collaborative, and engineering-driven culture focused on building reliable, scalable, and measurable business value.

The representative office of an Estonian software company that has been developing innovative transport management solutions based on web and mobile platforms for almost 15 years is looking for a .NET Developer.

REQUIREMENTS:

- 5+ years of .NET experience;

- Experience with .NET Core, ASP.NET, MVC 5, SignalR, RabbitMQ, T-SQL, LINQ;

- Practical skills with MS SQL Server;

- Higher education;

- Technical English (higher proficiency is a plus).

COMPANY OFFERS:

- Official employment or under gig-contract, all taxes are paid;

- Exemption from mobilization (after the probationary period);

- Hybrid work format (3 Kyiv office visits per week);

- Office located near Teremky metro station;

- 24 paid vacation calendar days per year;

- Paid sick leave;

- Paid courses / trainings;

- Financial bonus system;

- Salary indexation twice a year.

About the role

We are looking for a Middle/Senior Developer with strong .NET expertise and hands-on AWS experience to join one of our long-term projects. The ideal candidate is a proactive engineer who can take ownership of development tasks, deliver high-quality solutions, and collaborate effectively with the team.

Responsibilities

• Design, develop, and maintain software applications using .NET technologies.
• Analyze requirements, estimate tasks, and take ownership of engineering activities.
• Deliver efficient and scalable solutions with high-quality code.
• Write clean and maintainable code with a strong focus on Unit Test coverage and Definition of Done principles.
• Develop and maintain relational databases and integrate them with software applications.
• Create and maintain REST APIs.
• Collaborate with team members to design and implement solutions aligned with business requirements.
• Participate in code reviews and contribute to maintaining coding standards and best practices.
• Work with AI tools as part of the development process.

Requirements

• Strong commercial experience with C#/.NET Core and .NET Framework.
• Experience with AWS services, including SQS and Lambda.
• Hands-on experience with SQL Server (MSSQL) and relational databases.
• Experience creating and maintaining REST APIs.
• Experience working in Agile environments.
• Strong understanding of software development best practices and code quality standards.
• Advanced or higher level of English.

Nice to have

• Experience with additional cloud technologies and modern architecture approaches.
• Experience working with AI-powered development tools.

About SYNTECH Digital

We are an official Creatio partner and product company. SYNTECH builds and maintains 17+ Marketplace apps (Kanban, Gantt, Calendar, Pivot, Map, HRM, Manufacturing, and more) and delivers complex CRM/ERP implementations for clients across logistics, manufacturing, finance, and HR industries.

Responsibilities
    •    Develop and customize solutions on the Creatio platform: C# schemas, business processes, event listeners, scheduled jobs, and server-side scripts
    •    Build WCF / Web API services and integrations with external systems (Google APIs, payment gateways, ERP platforms)
    •    Contribute to SYNTECH’s proprietary Marketplace component suite (Angular Freedom UI components, back-end services)
    •    Write efficient SQL queries for PostgreSQL and MS SQL; optimize performance on large datasets
    •    Participate in technical pre-sales: architecture design, effort estimation, client communication
    •    Conduct code reviews, maintain technical documentation, support live projects
    •    Collaborate with the team via Git and CI/CD workflows

Requirements
    •    2+ years of commercial experience with C# / .NET (ASP.NET, Web API, WCF)
    •    Hands-on knowledge of the Creatio platform: EntitySchemaQuery, schemas, packages, Process Designer, Freedom UI
    •    Confident JavaScript / TypeScript (Angular or Backbone.js / Ext JS)
    •    Experience with SQL — PostgreSQL or MS SQL
    •    Solid understanding of SOLID, DRY, KISS principles
    •    Proficiency with Git
    •    English — B1+
Nice to Have
    •    Angular Freedom UI component development for Creatio
    •    Experience integrating Google Drive, payment APIs, ERP
    •    Familiarity with Creatio Marketplace package publishing process
    •    SignalR / real-time apps, Docker / container deployments

We Offer
    •    Competitive salary discussed individually
    •    Work on real products sold on Creatio Marketplace — not just client customizations
    •    Growth path to Tech Lead / Solution Architect
    •    Flexible 5-day schedule, fully remote
    •    24 days paid vacation
    •    Direct participation in pre-sales and product architecture decisions

Company overview:
 

Graphio.ai stops revenue loss before it happens by detecting broken handoffs between teams.
 

We analyze API-enabled metadata from your existing systems to automatically identify when Sales, Customer Success, Legal, Finance, Product, and Operations are misaligned - before deals stall, renewals fail, or contracts slip.
 

No workflow changes. Fast rollout in less than 2 days.

AI learns what successful execution looks like in your company and alerts you to dangerous deviations in real time.

We’ve built and scaled before: the team behind Graphio.ai previously built upSWOT, a B2B platform adopted by hundreds of financial institutions, which was later acquired by Uptiq.  We’re applying those lessons in execution, delivery, and scale to Graphio.ai.

Supported by senior leaders from Experian, Mastercard, Lattice, BambooHR, Altrata, SAP, JackHenry, FIS, Pfizer, Workday, Customertimes, and more (graphio.ai/investors).

Position Overview:

We are looking for a Junior/Middle Backend Developer to help build and maintain the backend services that power Graphio.ai’s workflow intelligence product.

In this role, you will work on C# / .NET–based APIs and backend services that support customer onboarding (workspace setup and invites), system integrations, metadata ingestion and processing, and generation of user-facing outputs such as weekly/monthly reports and alerts.

You will join a small team where shipping, reliability, and clean engineering practices matter. This is a role for someone who wants to grow fast by working on real production systems, with support from senior engineers and clear technical direction.

Key Responsibilities:

• Build and maintain backend services and REST APIs using C# / .NET (ASP.NET Core) that powers core Graphio.ai flows: workspace setup, user access, system integrations, metadata ingestion, reporting, and alert delivery.
• Write clean, maintainable code and follow team standards; contribute to refactoring and long-term code health when needed.
• Work on ingestion and processing of metadata (events, entities, timestamps, identifiers) used for workflow intelligence and reporting.
• Design and implement asynchronous and event-driven processes using RabbitMQ (queues, background jobs, retries, idempotency).
• Improve API reliability and performance: clear contracts, consistent error handling, pagination, and rate limiting.
• Work with databases:
  • MongoDB for operational and metadata storage,
  • ClickHouse for analytics, aggregations, and reporting workloads.
• Write and optimize queries, design schemas and indexes, participate in migrations, and help ensure data integrity and consistency.
• Implement authentication, authorization, and secure-by-default practices (permissions, tenant boundaries, safe handling of sensitive data).
• Write unit and integration tests; participate in code reviews and apply feedback quickly.
• Monitor and troubleshoot services in production: use logs, metrics, and tracing; contribute to root-cause fixes.
• Document backend services and APIs: how they work, how to run locally, and how to debug common issues.
• Contribute to engineering workflows: Git-based collaboration, containerized development (Docker), and CI/CD practices.
• Collaborate with Product, Frontend, and Engineering peers to deliver features in small, shippable increments in a remote environment.

Required Qualifications:

• 1–2 years of backend development experience (or equivalent production experience through projects).
• Strong knowledge of C# and .NET (ASP.NET Core, Web API).
• Experience building REST APIs, including authentication, authorization, error handling, pagination, and versioning.
• Hands-on experience with MongoDB: schema design, indexes, aggregations, and query optimization.
• Understanding of analytical databases; experience with or willingness to learn ClickHouse (aggregations, partitioning, performance tuning).
• Experience with message queues and background processing; RabbitMQ is a strong plus.
• Understanding of asynchronous processing, eventual consistency, and retry mechanisms.
• Knowledge of secure engineering basics (auth, permissions, data protection).
• Comfortable working in a remote team: clear written communication, ownership of tasks, and predictable delivery.

Nice to Have:

• Experience building event-driven architectures and data pipelines.
• Experience working with large datasets and performance optimization.
• Familiarity with observability tools (logging, metrics, tracing).
• Startup experience or proven ability to move fast without heavy process.
• Experience with Kubernetes or cloud platforms (AWS, GCP, Azure).

What we offer:

• A practical growth role on real backend services used by customers, with clear feedback and mentorship from senior engineers.
• Work on meaningful product flows: metadata processing, workflow intelligence outputs, and reporting/alerts.
• A startup environment with low bureaucracy and fast iteration - you ship, learn, and improve quickly.
• Remote-friendly team with a simple setup and high trust.
• Competitive compensation (based on level) and growth opportunities as the team scales.

Company Operating Requirements:

At Graphio.ai we run a high-ownership, mission-driven team with clear operating rules. Please read these carefully before applying:

• LinkedIn profile is required (company policy). Employees are required to keep a current LinkedIn profile that shows their Graphio.ai position and is linked to the official Graphio.ai company page (company logo visible on the profile). Profile standards are provided during onboarding.
• Synchronized team vacations. The team takes coordinated time off four times per year to keep planning aligned and reduce context switching. Dates are announced in advance.
• Startup constraints. Vacation timing may be restricted during critical company periods. We plan time off as a team and communicate constraints early.
• Relocation readiness. Team members may reside in Ukraine, but must be prepared to relocate with their families to Europe or the United States if the company requests it and it becomes legally possible. Any relocation would be discussed in advance.
• Non-standard schedule. The role requires flexibility to collaborate across time zones. This may occasionally include early/late meetings depending on customer and team needs.
• Zero slow offboarding. We run lean and fast. When the fit isn’t there, we act quickly: employment may be ended within a day and access is removed immediately.

Application requirement: short intro video (required):

Please include a short self-introduction video (2–5 minutes). You can add the link directly to your resume or submit it through the hiring platform in any available way (YouTube, Loom, Google Drive, or similar).

• No need for a polished production, a simple smartphone recording is perfectly fine.
• This does not replace live conversations, it only helps us speed up the first screening and understand your communication style and motivation.
• In the video, please cover:
  • Who you are and 2–3 measurable outcomes you delivered in recent roles
  • Why you are applying for this role at Graphio.ai
  • Why you are leaving or have left your previous role
  • Your view on how a high-ownership startup team should operate (pace, ownership, communication, and work-life balance expectations)
• Applications without the video may not be reviewed.

Final note:

Graphio.ai is not a 9-to-5 corporate environment. We move fast, operate with high ownership, and expect proactive execution without micromanagement. Graphio.ai is a strong fit for people who actively seek challenges for personal growth - especially those who want to build their own company one day and see this as a place to learn how high-performing startups execute.

Developing a software platform for the automated analysis and visualization of cyberattacks in safety-critical systems. The goal is to efficiently support companies in regulated industries – from automotive and energy to the security and defence sector – in implementing complex cybersecurity requirements, the deal is to distributed a micro-service based application for real-time system design and threat modelling.
Based on best practices of Domain Driven Design.

Technology:
- C# / .Net Core;
- Rest Api / Json;
- NuGet / Packages;
- Ado.Net / EntityFramework / Dapper; 
- Sql (relational design understanding);
- Windows / Linux;
- Message broking;
 

Would be a plus:
- Html / Css / JS;
- Sass / Less;
- Anguler | React | VueJs (some of);
 

Architecture:

- Multi- (micro-/macro-) services;
- System complexity management;
- Testing approaches understanding;
- CI/CD concepts understanding; 
- Clean coding / Refactoring;
- Ability to keep architecture consistency;
- DDD, SOLID, KISS

General .net:

- Keep development process clean and transparent for project management and rest of the team;
- Integrate FE development process with existing project parts;
- Be aware in full-stack scope of product development;

General BA:

- Solid understanding of software architecture concepts (layers, microservices, APIs, data models, integration patterns);
- Experience translating business requirements into technical constraints and design principle;
- Strong analytical, communication, and documentation skills;

Tools:
- Git;
- Postman / Fiddler (or any other utility); 
- Docker;
Other:
- English - upper intermediate (C1 equivalence);

ASAP Hiring
Long notice periods won't be considered.

We're building a new AWS-based logistics platform that centralizes operational workflows and business data.

Our immediate focus is integrating existing operational systems (Monday.com, Trucker Tools) into a unified backend environment, synchronizing data with AWS-hosted databases, and building scalable services for logistics operations.
 

What You'll Do

• Build and maintain backend services using .NET / ASP.NET Core
• Integrate Monday.com and Trucker Tools APIs
• Design and optimize PostgreSQL / SQL database structures
• Implement data synchronization and webhook-based integrations
• Develop backend logic for orders, loads, routes, delivery tracking, and operational reporting
• Collaborate closely with frontend and AWS infrastructure teams
   

What We Expect

• Strong commercial experience with C# and .NET
• Solid REST API development experience
• Strong SQL and relational database design skills
• Experience integrating third-party APIs
• Experience with webhooks and event-driven systems
• Hands-on experience with AWS environments
• Strong understanding of scalable backend architecture
   

Nice to Have

• Experience in logistics, transportation, fulfillment, or supply chain products
   

Tech Stack

.NET Core • C# • PostgreSQL • REST APIs • AWS • Monday.com API • Trucker Tools API • Webhooks • GitHub • CI/CD

We are looking for a skilled  Developer with strong experience in .NET  to join our team on a long-term project focused on building and enhancing a modern call center solutions platform. The system is designed to optimize customer support processes, integrate with telephony services, and offer real-time data analytics.

Technology Environment

• .NET / ASP.NET Core
• C#
• PostgreSQL / SQL Databases
• REST APIs
• Monday.com API
• Trucker Tools API
• Webhooks & Event Processing
• AWS Cloud Services
• Git / GitHub

• CI/CD Pipelines

   

Responsibilities

• Build and maintain backend services and APIs.
• Integrate Monday.com and Trucker Tools APIs.
• Design, extend, and optimize SQL database structures.
• Implement data synchronization between Monday.com and AWS-hosted databases.
• Develop webhook-based and event-driven integrations.
• Model and manage business entities such as orders, loads, stops, drivers, delivery statuses, proof-of-delivery records, and customer service issues.
• Develop backend logic supporting operational workflows and tracking processes.
• Collaborate with frontend developers to deliver clean and scalable API contracts.
• Work closely with AWS engineers on deployment and infrastructure requirements.

• Document backend functionality and technical decisions.

   

Required Experience

• Strong commercial experience with .NET and C#.
• Experience building and maintaining RESTful APIs.
• Strong SQL database and relational data modeling experience.
• Experience designing and extending database schemas.
• Experience integrating third-party APIs and business platforms.
• Experience with webhooks and event-driven architectures.
• Experience working with AWS-based environments.
• Ability to work with operational and workflow-driven business data.

• Experience with Git/GitHub and modern development practices.

   

Nice to Have

• Experience in logistics, transportation, fulfillment, or supply chain systems.

What’s In It for You?

• Career Growth — Opportunities to develop and advance.
• Performance Reviews — Regular feedback and support.
• Work Anniversaries — Special gifts to celebrate milestones.
• Flexible Work — Hybrid or remote (Lviv office available).
• Mentorship — Guidance from experienced professionals.
• Accounting Support — We handle the paperwork.
• Paid Time Off — 18 vacation days + 5 sick days per year.
• Extra Leave — 10 additional days off annually.
• Free Office Lunches — Enjoy meals on us.
• Team Events — Gatherings, gifts, and a welcoming atmosphere.

Working hours: 14:00-22:00 CET

As a Lead Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features in software products. You will play a key role in ensuring that our client's storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK.

You will enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You will collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices.

Responsibilities:

• Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers
• Build and maintain microservices-based architectures using C#, ASP.NET, and others
• Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions
• Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes
• Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure
• Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products
• Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind
• Identify and address performance bottlenecks and scalability challenges proactively
• Align across teams for designs, communicate and resolve roadblocks
• Guide and mentor other engineers through design and code reviews

Required Qualifications:

• Extensive experience developing backend services and APIs in C#/.NET
• Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases
• Experience with microservices architecture and distributed systems
• Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow)
• Strong understanding of designing and building scalable, secure, and reliable cloud-native applications
• Experience with designing and implementing RESTful or gRPC APIs
• Knowledge of data storage best practices, including security, availability, and compliance

Preferred Qualifications:

• Familiarity with integrating orchestration tools into enterprise software environments
• Experience with performance optimization, cost management, and designing for high availability
• Excellent communication and collaboration skills
• Prior experience mentoring engineers and conducting design/code reviews
• Background in supporting analytics and business intelligence integrations

Blackthorn Vision is looking for a Middle/Middle Strong .NET Engineer. 

Our client, established in 2011 and based in Colorado, is a leading player in the U.S. application management market. We’ve had a successful partnership with this client and are seeking candidates who are eager to take ownership and improve a product already trusted by over 6,000 enterprises.

Requirements:

• 3+ years of commercial experience working on the backend as a .NET developer.
• Cloud systems development experience.
• Understanding of data access technologies, including Entity Framework and MongoDB.
• Experience with both SQL and NoSQL databases.
• Experience with microservice-oriented architecture, parallel, and asynchronous programming design patterns.
• Experience with Kubernetes, Docker, and RabbitMQ.
• Proven experience with Azure technologies: Azure Entra ID, Azure Storage accounts, Azure Service Bus, Azure Container Registry.
• Knowledge of design and architectural patterns.

• English level: Upper-Intermediate.

   

Responsibilities:

• Develop and maintain high-quality software solutions using .NET 8.0.
• Take full ownership of delivering new features to end users, including designing architecture, implementing, testing, and onboarding the customer support team with new functionality.
• Collaborate with product owners, the support team, and end users to understand project requirements and deliver solutions.
• Participate in code reviews to enhance overall code quality.
• Ensure applications are high-performing, responsive, and of excellent quality.
• Troubleshoot and resolve technical issues and defects promptly.
• Create code documentation, technical specifications, and architecture diagrams for new features.
• Follow agile methodologies and participate in regular sprint planning and review meetings.

You are compatible with us if you:

• Have a strong product mindset.
• Have a proactive approach to taking ownership of decisions/features.
• Possess a strong, curiosity-driven mindset.
• Are comfortable with challenges.
• Have the ability to collaborate and build relationships with diverse personalities.
• Demonstrate customer-focused decision-making.
• Exhibit clear and timely communication.
• Are open to giving and receiving constructive feedback.
• Value the quality of your code.
• Are able to solve the required technical tasks and communicate throughout the process (for example, asking clarifying questions promptly).

Our customer is a global leader in digital agreement and e-signature solutions, enabling organizations worldwide to securely manage, sign, and automate business-critical documents and workflows. We are looking for a self-motivated software engineer to join us in developing storage infrastructure to organize and facilitate our business growth. Our team is the center of how customers and services store their critical data and trust its security, performance, availability, compliance, and durability, which enables customers to derive intelligence and analytics through AI & BI.

As a Senior Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features. You will play a key role in ensuring that our storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices.

Responsibilities:

• Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers
• Build and maintain microservices-based architectures using C#, ASP.NET, and others
• Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions
• Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes
• Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure
• Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products
• Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind
• Identify and address performance bottlenecks and scalability challenges proactively
• Align across teams for designs, communicate and resolve roadblocks
• Guide and mentor other engineers through design and code reviews

Requirements:

• Extensive experience developing backend services and APIs in C#/.NET
• Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases
• Experience with microservices architecture and distributed systems
• Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow)
• Strong understanding of designing and building scalable, secure, and reliable cloud-native applications
• Experience with designing and implementing RESTful or gRPC APIs
• Knowledge of data storage best practices, including security, availability, and compliance
• Availability to fully cover 13:00-22:00 EET working hours from Monday to Friday is a mandatory requirement for this role.