Jobs Fullstack

Adwisely is an Ad Tech SaaS on Shopify that helps e-commerce businesses run profitable ads on Meta and Google. Our product vision: an AI agent that manages ad spend, optimizes ROAS, and delivers results — so merchants can focus on their business, not their ad accounts.

We're looking for a senior engineer to take real ownership of the product and help us ship the next version of the platform — not as a ticket-taker, but as the technical co-owner of what we build and how we build it.

What you'll own

• AI-assisted development infrastructure. You'll own the system that lets our team ship fast with AI. That means: expanding our CLAUDE.md with real coding conventions, building Claude Code skills and hooks, setting up CI quality gates (linting, formatting, automated tests), and creating the pre-merge workflow so AI-generated PRs pass review on the first try. This is your highest-impact work in the first month.
• AI-native product experience. Store intelligence that analyzes a merchant's data, scores products by predicted ROAS, and drives every recommendation the platform makes.
• Shopify-deep integration. Adwisely should live where merchants already work: Shopify admin, Sidekick, Flow — not as a separate dashboard they forget about.
• Platform reliability and UX improvements. Bulletproof onboarding, ROAS optimisation, clearer performance visibility.
• Quality at every stage. You own QA as part of the delivery process, not as an afterthought. That means writing specs that include test cases, reviewing AI-generated diffs for correctness, and building end-to-end tests for critical paths.

How we work

We build with AI-assisted development. Our primary tool is Claude Code with a custom CLAUDE.md, project-specific skills, and pre-commit hooks. You'll extend and improve this setup.

The workflow is: write a tight spec, generate an implementation plan (reviewed by you before coding starts), generate the implementation with Claude Code, pass automated quality gates, and ship. You'll be the person who makes this workflow reliable — so that PMs can independently deliver features at high quality.

You'll work directly with the company founders. No PM layer, no sprint ceremonies. Team: 2 PMs, 1 senior dev, 1 part-time dev. Small team, high ownership, no bureaucracy.

This role is for you if...

• You have 5+ years with Python and React in production
• You have hands-on experience with AWS: EC2, RDS, S3, Lambda, or similar services
• You're comfortable owning the full stack: React frontend, Python backend, cloud infrastructure
• You've worked with at least one of: Shopify APIs, Meta Marketing API, Google Ads API
• You're used to being the primary engineer and making architectural calls without a lot of hand-holding
• You can move between support and feature work without losing momentum
• You've used Claude Code, Cursor, or Copilot in production — and you have opinions about where AI helps and where it doesn't
• You treat QA as part of shipping, not a separate phase. You write tests, review diffs carefully, and don't merge what you haven't verified
• You're excited about building the dev process itself, not just building features within one

Nice to have

• Experience building or maintaining Shopify apps (ours is built on Remix)
• Familiarity with LLM API integration (Anthropic, OpenAI, Gemini)
• Any background in ad tech or performance marketing
• Experience setting up CI/CD pipelines, automated testing, or developer tooling

What we offer

• $4,500-6,000/month depending on experience
• Equity stake with vesting — you're joining as the primary engineer at a pivotal moment (details in offer conversation)
• Architecture ownership: meaningful decisions, not just tickets
• Greenfield opportunity to shape how the entire engineering org works
• Fully remote, flexible schedule
• Paid vacation

We are looking for a Junior Full-Stack Developer (Remote, Ukraine) to join our team.

💻 Requirements:

• At least 1 year of experience in full-stack development
• Strong knowledge of HTML, CSS, and JavaScript
• Strong knowledge of:
  • .NET 
  • Angular
  • MS SQL
• Experience with:
  • SharePoint Online & SPFx integrations
  • Microsoft Azure (preferred)
  • Supabase
  • Docker
• Familiarity with developer tools such as Windsurf and Cursor
• English level: B2 or higher

➕ Additional Skills (Nice to have):

• Python (for potential future projects)
• Power Automate
• SharePoint Farm solutions

🌍 Work Format:

• Fully remote position
• Based in Ukraine

💰 Compensation & Benefits:

• Salary: starting from $700/month (based on interview results)
• 14 days of paid vacation annually

🧪 Trial Period:

• Initial 1-month paid trial period to evaluate mutual fit and collaboration

🧩 About the Work:

We currently have multiple ongoing projects, where you will be involved in:

• Developing new features
• Performing maintenance and improvements
• Working with modern Microsoft and web technologies

🚀 What we’re looking for:

A motivated junior developer eager to grow, take ownership, and work across different technologies in a collaborative remote environment.

If you’re interested, please send your CV and a short introduction about your experience.

Interviews and subsequent work will be conducted in English. Conversational skills are required.

We are looking for a Senior Back-end (Node.js) Developer/Architect with strong experience in healthcare software development, backend architecture design, and cloud platforms. The role combines hands-on engineering with architectural decision-making and participation in discovery and presales activities.

Must have

• 6+ years of experience in backend or full-stack development
• Strong proficiency with Node.js and JavaScript / TypeScript
• Experience designing backend architectures and APIs
• Hands-on experience with AWS or other cloud platforms
• Experience developing Healthtech software
• Understanding of sensitive data handling practices (PII / PHI)
• Familiarity with FHIR or HL7 healthcare interoperability standards
• Experience integrating with EHR / EMR systems

• English proficiency — Upper-Intermediate or higher

   

Will be a plus

• Experience working with healthcare platforms such as Medplum
• Familiarity with HIPAA compliance
• Experience with Infrastructure as Code (AWS CDK, Terraform or similar)
• Experience integrating AI services or ML-based solutions
• Experience with serverless and event-driven architectures

• Previous team leadership or technical mentorship experience

   

Responsibilities

• Design application and cloud architectures, primarily for healthcare platforms
• Actively participate in development, especially during early project stages
• Participate in technical presales activities as a technical expert in the Healthtech domain
• Contribute to discovery phases, prepare technical solutions, and present them to clients or internal teams
• Support development teams with architectural guidance and technical expertise
• Perform on-demand researches and build prototypes

• Continuously expand expertise in modern technologies and architectural approaches

   

About Project

A center of excellence (COE) is a team of senior tech experts who conduct research on strategic tech trends, maintain top quality standards, foster professional development, and can provide you with expert consulting throughout the whole development process.

The CoE helps our clients to perform a Product Discovery Phase, build a prototype, and validate a product concept. The experts provide a client with a High-Level Architecture plan, the suggested technology stack, the design of the product, time and cost estimates, consulting, and a Work Breakdown Structure.

Furthermore, CoE provides tech assessment and consulting in case of a bottleneck or a non-trivial problem on existing projects.

Work Schedule

Full-time workweek (Monday to Friday), 40 hours.
Flexible working format: remote, hybrid, or office (Kyiv, Lviv).

Interview Stages

1. Call with Recruiter
2. Technical interview with Architect

CoreWillSoft GmbH is a German-based company working on secure IoT software solutions and services. The mission of CoreWillSoft is to help businesses protect their assets, employees, and data by providing advanced software solutions and services in the security industry.

We are looking for a Full-Stack Software Engineer with strong backend experience in Kotlin/Java and solid Frontend expertise.

You will work on products used by businesses across Western Europe.

Our team operates in a scaled agile approach across Europe with a headquarter in Bonn, Germany. It is responsible for the complete software development lifecycle; including ideation, implementation, and operation of the secure IoT software operating smart buildings and smart homes across the world.

Join us to work on cool and innovative projects involving high-security hardware in a nice international and creative environment that allows you to learn and advance.

Location:

• Bonn, Germany
• Remote

We offer:

• Great customer impact: the solutions you deliver will be used by thousands of large and small businesses
• Ability to shape the product, working, and delivery process
• Great team spirit and Team Events
• Agile and innovative environment
• Cutting-edge technologies
• Working on the latest Hardware
• Convenient office or co-working, depending on your location.

Your skills:

• Backend:
  • Proficiency in Kotlin and/or Java for backend development
  • Strong experience with the Spring Boot framework
  • Experience with Docker and containerized applications
  • Familiarity with cloud platforms such as AWS, Azure, or Google Cloud
  • Experience in designing and consuming RESTful APIs
  • Knowledge of microservices architecture and patterns
  • Experience with on-premise and cloud-based deployments 
  • Proficiency in secure coding practices and understanding of security bestKo practices for backend systems
  • Familiarity with scalability strategies and performance optimization in backend services
  • Knowledge of monitoring and observability tools (e.g., Prometheus, Grafana, ELK)
  • Knowledge of cryptography and security 
  • Familiarity with CI/CD processes, including GitHub Actions, GitLab CI, or similar tools
  • Experience with version control systems (e.g., Git)
  • Experience with database technologies, both relational (e.g., PostgreSQL) and NoSQL (e.g., MongoDB).
• Frontend:
  • Strong experience with React.js or Angular, or Vue
  • Solid knowledge of TypeScript / JavaScript, HTML5, CSS3
  • Experience with modern tools (Vite, Webpack, npm, etc.)
  • Understanding of state management (e.g., Redux). 

Nice to have:

• Experience building desktop applications
• Experience with Kotlin Multiplatform in production
• Knowledge of the modern Kotlin ecosystem (Coroutines, Flow, Compose, Koin, Ktor)
• Knowledge of additional programming languages
• Experience with system architecture and distributed systems
• Understanding of UI/UX design and performance optimization
• Knowledge of building automation or access control systems

US Company is searching for a Senior Delphi developer to join a development team for development an enterprise level platform and services. Interesting project, distributed team, full-time, an official contract. Remote work, flexible schedule (CET business hours).

Brief project description:

• The product is a complex platform with applications realized like SaaS, which perform multiple functions for improving Safety, Sustainability and Productivity (works planning / incident management / monitoring & analytics) on high-risky industries: oil & gas gathering and transportation, chemical, building, energy market.

Responsibilities:

• Full-stack development and maintenance for the LCA product family across all layers from desktop clients, backend services and data layer, to API development and user interface design and implementation
• Develop functionality, applications and services in Delphi and C#
• Develop and design RESTful services and APIs
• Develop infrastructure and APIs to support custom projects, such as customer specific LCA
  tools, or integrations of the LCA product family with ERP, CRM, PLM…
• Analyze requirements, suggest concepts, and assess development efforts.
• Analyze technology trends and harmonize our technology landscape to make it future proof.
• Work in a scrum team.
• White box testing and development of unit tests
• Technical system documentation (source code documentation, external documentation,
  bug-tracking system, design documentation etc.)
• Refactor modules to address the most relevant weak spots.
• 3rd-level support

Required Skills and Experience:

• Experience in developing desktop software applications - 3 years) 
• Experience with Delphi - 3 years)
• Experience in developing APIs - years)
• Fluent in English
• Experience with scrum development process - 2 years)

Skills Considered a Plus:

• Experience in C# or similar object-oriented languages - 2 years)
• Domain expertise in life-cycle assessment, or a strong passion for the field
• Scrum master experience
• Azure and Azure DevOps experience

Work conditions:

• Distributed team, remote work.
• Kanban or scrum approach, 5-6 team members / team.
• Full-time (40 hours per week).
• Official contract: salary, sick-leave days, holidays, vacations.

Hiring process:

• Step 1 - preliminary interview (main questions) - 30 mins
• Step 2 - internal tech interview (tech questions) - 40-50 mins
• Step 3 - tech interview with team leader and architect - 1 hour

About the Client
Our client is a UK-based company operating a live B2B SaaS multi-module platform which is already serving paying users. They are currently undergoing a structured transition from a rapidly AI-prototyped codebase (using Lovable.ai) to a production-grade solution — built for long-term scalability and maintainability.

Job Description
We are looking for a Senior React / Supabase / TypeScript Developer who will take ownership of refactoring and hardening an existing SaaS platform. The core product logic, UI, and data layer are functional — this is not a rebuild. The goal is to elevate code quality, architecture, and operational reliability to production standards.

Stack

• Frontend: React 18, TypeScript, Vite, Tailwind CSS, shadcn/ui, React Router.
• Backend: Supabase (PostgreSQL, RLS, Deno Edge Functions, Auth, Realtime).
• Payments: Stripe (subscriptions, webhooks, metered billing).
• Auth: Google OAuth via Supabase Auth.
• Deployment: Currently Lovable Cloud (migration to Vercel or similar is in scope).
• AI Layer: External LLM API calls orchestrated through Edge Functions (you won’t need to write prompts, but you will need to understand and refactor the function architecture around them).

Scope of Work
The engagement is structured across three sequential phases.
Phase 1 — Audit & Architecture Proposal. Full codebase audit with a written proposal and prioritised recommendations. Sign-off from the client required before proceeding to Phase 2.
Phase 2 — Refactor & Harden. Systematic refactoring of the frontend architecture, Edge Functions, RLS policies, Stripe integration, and performance optimisation.
Phase 3 — Testing & CI/CD. Test coverage for critical paths, CI/CD pipeline setup, staging and production environments, and technical documentation for team onboarding.

Engagement & Payment
This is hourly, project-based engagement. Phase 1 is scoped as a standalone paid deliverable — upon successful completion, we move forward with Phases 2 and 3.

Requirements

• Proven experience refactoring an AI-generated or rapidly prototyped React + Supabase codebase to production grade — mandatory.
• Strong expertise in React 18, TypeScript, and component architecture patterns.
• Deep hands-on knowledge of Supabase: RLS policies, Deno Edge Functions, Auth, and Realtime.
• Experience with Stripe billing integrations (subscriptions, webhooks, lifecycle events).
• Familiarity with Vite, shadcn/ui, Tailwind CSS, and React Router
• Experience setting up CI/CD with GitHub Actions and modern deployment platforms (Vercel or similar).
• English — B2+ (working proficiency required for client communication).

Send us your CV — we'll be happy to work together!

We are looking for a Senior Full-stack .NET Engineer with Blazor to join our team. 

Our Client is a leading provider of automated storage and logistics systems. Together with N-iX and client engineers, you will work on developing a comprehensive, scalable, and efficient solution to meet the evolving needs of modern warehouse management, ensuring a robust, future-proof operational environment.

Responsibilities:

• Actively engaging in development meetings to stay abreast of new technologies and understand the company's vision and objectives.
• Playing a key role in technical planning meetings, collaborating with colleagues to discuss user stories and decompose tasks with the end result in mind.
• Ensuring the delivery of high-quality products through meticulous practices such as documentation, code reviews, unit tests, API tests, and comprehensive monitoring.
• Collaborating closely with the product manager to ensure the team's clear understanding of the project's purpose.
• Proactively escalating issues to the Head of Development when assistance is required.
• Aligning with the team's goals during daily stand-up meetings.
• Advocating for improvement suggestions during retrospective meetings that lead to positive changes.

Requirements:

• Strong proficiency in C#, .NET Core, and .NET Framework - 5+ years of experience
• Experience with the Blazor framework
• Solid understanding of Clean Code, DDD, and CQRS principles
• Practical knowledge of CI/CD pipelines
• Experience with PostgreSQL and SQLite
• Hands-on familiarity with Docker
• Knowledge of RabbitMQ and MassTransit
• Practical experience with gRPC
• Strong skills in Unit Testing and Integration Testing
• Proficiency with Git
• English level - Upper-intermediate+

About the client:

Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.

Responsibilities:

• Continue the evolution and scaling of our freshly released, native ChatGPT apps and custom MCP integrations.
• Develop and maintain high-traffic, public-facing interfaces hosted on AWS modern cloud infrastructure.
• Work heavily with AI agents (Claude Code, ChatGPT/Codex) to maintain and extend a codebase 
• Operate with full team autonomy, collaborating closely with the Engineering Manager in a "co-author" environment.
• Follow the "you-build-it-you-own-it" philosophy, taking full responsibility for the SDLC and production readiness.
• Explore and implement emerging AI frameworks and technologies to keep the product at the forefront of the GenAI market.

Requirements:

• 7+ years of experience developing reliable, highly available, and scalable software systems.
• Strong experience working with AI agents (Claude Code, ChatGPT/Codex) to maintain and extend a codebase 
• Strong proficiency with backend development using Node.js and TypeScript.
• Deep experience with Model Context Protocols (MCP).
• Proven track record of using AI tooling (ChatGPT, Codex, Claude Code) for rapid operator-driven development.
• Hands-on experience with modern cloud infrastructures, specifically AWS, Terraform, and Docker.
• Strong proficiency with frontend development (HTML, CSS, JavaScript) and component-based SSR frameworks like Next.js or React.
• Experience with SQL and NoSQL datastores, as well as developing in service-based API environments.
• Strong understanding of software architecture, design patterns, and clean code principles.
• A modern, energetic mindset with critical thinking and systemic vision skills, the ability to work independently and take high-level ownership.
• Experience with formal CI/CD pipelines and monitoring services.
• At least Upper-intermediate English level.

We’re looking for a Middle Full-Stack Developer with a strong backend focus to join our team.
The role is mostly backend-oriented (Django / Django REST Framework), with React on the frontend side. You’ll work on building and maintaining APIs, implementing business logic, and contributing to the frontend where needed.

Skills requirements:

• 2+ years of commercial experience as a Full-Stack or Backend Developer
• Strong experience with Django / DRF
• Hands-on experience with React
• Good understanding of REST APIs and databases

• Ability to work independently and communicate clearly within a team

   

Nice to have

• Experience with AWS in production
• Basic DevOps understanding
• Experience with async tasks (Celery or similar)

Key Responsibilities

• Develop and maintain backend services using Django / Django REST Framework
• Build and support REST APIs and core business logic
• Work with AWS infrastructure and cloud services
• Contribute to frontend development using React
• Collaborate with the team, participate in code reviews, and improve code quality

We offer:

• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Comfortable, spacious and well-equipped office in the city center;
• Team building activities, corporate events.

US Company is searching for a Team Leader (.Net / Java / Delphi / Azure) into a complex, enterprise-level project - SaaS, which allows multiple functions for safety and health insurance on high-risky industries (oil and gas gathering, chemical, energy etc). Interesting project with cutting edge technologies, distributed team, full-time, an official contract. Remote work, flexible schedule.

Brief project description:

• The product is SaaS, which allows multiple functions for sustainability & operational risk management.

Key areas of responsibility:

• Guide the team and spread the work on a project with 10 developers on it.
• Partial full-stack development across all layers from desktop clients, backend services and data layer, to API development and user interface
• Refactor modules to address the most relevant weak spots.
• Analyze requirements, suggest concepts, and assess development efforts.
• Code review, evaluation of team-members performance and contribution

Required skills (at least one or more for each category):

• .Net, Java, Delphi, React.js, Rest API
• Fluent in English.
• MS Azure.

Skills considered a plus:

• Domain expertise in life-cycle assessment, or a strong passion for the field
• Experience in building web/cloud applications

Work conditions:

• Distributed team, remote work.
• Kanban or scrum approach, 5-6 team members / team.
• Full-time (40 hours per week).
• Official contract: salary, sick-leave days, holidays, vacations.

Hiring process:

• Step 1 - preliminary interview (main questions) - 30 mins
• Step 2 - internal tech interview (tech questions) - 40-50 mins
• Step 3 - tech interview with team leader and architect - 1 hour

Job Description

Qualifications
You will succeed in this role if you:
● Have at least 3 years of experience with On Prem and/or Cloud Providers (AWS, Azure, or GCP), with Azure being a must.
● Have worked with Azure cloud environments to manage and deploy Java applications built on Spring Boot and Spring MVC.
● Possess deep experience with Spring Batch for high-volume data processing and Spring Data (referenced as String Data) for robust RDBMS/NoSQL integration.
● Have a proven track record of setting up and configuring CI/CD pipelines using tools such as Jenkins or GitHub Actions to enforce the 80% unit test coverage requirement.
● Understand container technology, such as Docker and its ecosystem, for packaging Spring-based microservices.
● Have experience with build and delivery processes for enterprise web applications and complex backend systems.
● 5+ years of experience working on large development projects using TypeScript and modern frontend ecosystem tools.
● 3+ years of experience building high-performance web applications using Next.js, including deep knowledge of App Router, Server Components, and SSR/SSG patterns.
● 3+ years of experience implementing enterprise-grade UI components using the Hitachi Design System (or similar enterprise design systems) to ensure visual and functional consistency.
● 3+ years of experience building robust unit and component tests using tools like Jest, Vitest, or React Testing Library to meet the 80% line coverage mandate.
● Are always looking for ways to automate testing, deployment, and regression suites.
● Can explain the advantages and disadvantages of containerization in a microservices architecture.
● Are interested in improving the software delivery lifecycle using frameworks like Kubernetes and Terraform.
● Are comfortable working in polyglot environments (debugging code in Java, Node.js, Python, Groovy, or Golang).
● Understand the benefits of static code analysis, open-source scanning, and mandatory peer reviews by at least two engineers.
● Are ready to help inform “build vs. buy” decisions and participate in Change Control Board (CCB) reviews for scope or schedule shifts.
● Could field questions on topics like “DevOps,” “Microservices,” “Continuous Delivery,“ or “Batch Processing.”
● Understand RBAC, the principles of least privilege, and AI data security protocols to ensure client data is not used for model training.
● Are familiar with both NoSQL (Mongo, Redis) and RDBMS (Postgres, MySQL, SQL Server) systems, specifically utilizing Spring Data for abstraction.
● Understand SLIs, SLOs, and Error Budgets and how to apply the four golden signals to backend services.
● Are comfortable challenging the status quo, thinking outside the box, and adhering to a formal Definition of Done.

● Have experience with or the desire to lead others, including managing technical expectations with the Program and Product Manager.
● Work well with others and enjoy the journey of delivering high-quality products.
● Enjoy working in and learning to use a wide variety of technologies and languages.

Nice to have
● Experience building and managing scaled architectures like Microfrontends, Monorepos (Turbo/Nx), and shared internal component libraries.
● Experience managing and evolving CI/CD pipelines (Jenkins, GitHub Actions) and related DevOps tools.
● Experience building QA test automation (Cypress, Playwright) and ensuring software conforms to designs verified by the UX Lead.
● Experience building and maintaining application analytics, real-user monitoring (RUM), and securing frontend applications.
● Experience building Authentication and Authorization (NextAuth, OAuth) for protected enterprise applications.

Job Responsibilities

• Design and develop enterprise applications using Java (Spring Boot, Spring MVC, Spring Batch) and modern frontend technologies (TypeScript, React, Next.js).
• Deploy and manage applications in Azure cloud environments and support containerized microservices using Docker.

• Build and maintain CI/CD pipelines (Jenkins, GitHub Actions) and ensure high code quality and testing standards.

   

• Integrate backend services with RDBMS and NoSQL databases using Spring Data.

   

• Support microservices architecture, container orchestration, and infrastructure automation using tools like Kubernetes and Terraform.

   

• Collaborate with stakeholders and engineering teams to deliver scalable solutions and participate in architecture and technical decision-making.

   

• Contribute to DevOps practices, monitoring, and reliability using concepts such as SLIs, SLOs, and error budgets.

   

• Mentor engineers and support delivery planning in collaboration with Product and Program Managers.

Department/Project Description

The client is one of the largest energy providers in the United States, operating across power generation, transmission, and distribution, and driving innovation in grid modernization, digitalization, and AI-enabled energy infrastructure. They play a critical role in supporting large-scale data centers and future AI factories with reliable, secure, and efficient energy solutions.

YozmaTech isn’t just another tech company - we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster. We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact. Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family - you’ll feel right at home with us.

Our client transform back-of-house tech for the hospitality industry, replacing outdated processes with AI-driven solutions. This helps top hotel brands focus on delivering exceptional guest experiences while ensuring efficient operations.

Key Requirements:

🔹 6+ years of full stack engineering experience;
🔹 Advanced proficiency in .NET (C#) (5+ years) and at least 1 year of commercial experience with Node.js;
🔹 Advanced proficiency in React and TypeScript;
🔹 Proficiency in leveraging AI tools to enhance engineering productivity, with specific hands-on experience using Claude Code;
🔹 Experience working with high-scale and distributed systems;
🔹 Hands-on experience with SQL Server, PostgreSQL, MongoDB, or Redis;
🔹 Familiarity with frameworks like Express, NestJS, or ASP.NET Core;
🔹 Solid understanding of system architecture, automated testing, and security best practices;
🔹 Experience with Docker, CI/CD pipelines, and cloud platforms (AWS, GCP, or Azure);
🔹 Excellent communication and problem-solving skills; comfortable working in cross-functional teams;
🔹 Willingness to work in a role split approximately 60% backend and 40% frontend, with around 70% focused on new feature development and 30% on maintenance/bug fixes, including participation in on-call duties after the onboarding period.
🔹 English - Upper-Intermediate or higher.


Will be plus:

🔹 Experience with microservices architecture, GraphQL, or serverless functions;
🔹 Exposure to mobile development (especially React Native) or AI -based features;
🔹 Familiarity with DevOps practices and infrastructure-as-code (e.g., Terraform, Pulumi);
🔹 Domain experience in hospitality, logistics, or supply chain tech;

What you will do:

🔹 Design, develop, and ship end-to-end features using React, Node.js, TypeScript, and .NET (C#);
🔹 Build and optimize scalable APIs and backend services using SQL and NoSQL databases;
🔹 Own technical decisions around performance, security, maintainability, and code quality;
🔹 Collaborate closely with product managers, designers, and other engineers to deliver impactful features;
🔹 Participate in and lead code reviews, design discussions, and DevOps improvements;
🔹 Mentor junior developers and help evolve our engineering best practices;


Interview stages:
🔹 HR interview;
🔹 Interview with VP R&D;
🔹 Semi Live-coding interview;
🔹 Tech interview - code review;
🔹 References;
🔹 Offer.
 

LineUp is a fast-growing IT outsourcing company with 13 years of experience. We are currently looking for a Middle Fullstack Developer to join a long-term product project.

You will become part of the Smart City ecosystem - a large-scale software product for the Middle East market. This is a fully agile, product-oriented environment with real users and a tangible impact on urban infrastructure.

Key Responsibilities:

• Develop and maintain solutions using Node.js, NestJS, React, and Next.js.
• Build and manage microservices and monorepo environment architectures on the backend.
• Design, implement, and optimize database solutions using PostgreSQL (AWS RDS) and caching with Redis.
• Work with various AWS services including SQS, S3, Lambda, IAM, EC2, and EKS/ECS to build scalable and efficient cloud-based solutions.
• Contribute to containerization and deployment processes using Docker, including building images and pushing to registries, implementing and maintaining CI/CD pipelines using GitLab runners.
• Utilize state management tools like Zustand or similar, and integrate frontend applications with backend services using TanStack (React Query) or other data-fetching libraries.
• Ensure UI/UX consistency by leveraging component libraries such as PrimeReact or similar and building reusable components.
• Implement monitoring and observability for applications using Prometheus and Grafana to ensure system reliability and performance.
• Participate in the agile development process, contributing to scram events, fostering a collaborative and cross-functional team environment.

• Stay current with the latest technologies and best practices, and promote continuous learning and self-development within the team. Mentor other team members, providing guidance and sharing your knowledge.

   

Qualifications:

• Minimum of 3 years of experience in backend and frontend development with a strong focus on Node.js, NestJS, React, Next.js, and related technologies.
• Experience with microservices architectures and monorepo environments will be a plus.
• Proficiency in PostgreSQL (AWS RDS), Redis, and backend data management.
• Familiarity with AWS cloud services including SQS, S3, Lambda, IAM, EC2, and EKS/ECS.
• Understanding of Docker, CI/CD pipelines, and experience with GitLab runners.
• Experience with frontend state management libraries (e.g., Zustand) and data-fetching tools like TanStack (React Query).
• Familiarity with component libraries such as PrimeReact or similar, and a working knowledge of React hooks.
• Ability to document architectures, designs, and processes clearly.
• Excellent problem-solving skills and attention to detail, with a passion for creating high-quality, performant code.
• Ability to work effectively both independently and as part of a team in an agile environment.
• Good communication skills, with the ability to interact professionally with team members and stakeholders.

• English at Upper-Intermediate level and above.

   

What We Offer:

• Competitive salary.
• A collaborative and innovative work environment.
• Professional development opportunities.
• The chance to work on exciting and challenging projects.
• A supportive company culture.

Join us in delivering excellence through agility and innovation!

Are you ready to take your engineering skills to the next level? We are looking for a Senior Full Stack Engineer to join our team and help build innovative, data-rich web applications for global clients.

This role offers the opportunity to work on cutting-edge solutions using modern technologies, contributing to products that shape industries and empower millions of users worldwide.

We at Sigma Software value expertise, creativity, and collaboration. You will be part of a culture that supports professional growth, offers competitive benefits, and encourages innovation.

Customer

Our Customer is a global content and information company with over a century of history, recognized for shaping the future of media and data. With a strong focus on innovation, they deliver trusted experiences and tools that inform, inspire, and empower millions worldwide. Operating across multiple continents, they are known for their commitment to quality, accuracy, and cutting-edge technology.

Requirements

• 5+ years of professional experience with JavaScript/TypeScript across frontend and backend
• Strong experience with React and Vite for scalable frontend applications
• Solid hands-on experience with Node.js, NestJS, and REST API development
• Experience with data layer technologies, including PostgreSQL on AWS RDS and BigQuery
• Practical knowledge of D3.js or similar libraries for interactive data visualization
• Exposure to modern AI-powered backend solutions, including Agentic AI
• Strong knowledge of HTML, CSS, and JavaScript fundamentals

• Upper-Intermediate spoken and written English

   

Will be a plus:

• Experience with Model Context Protocol (MCP)
• Familiarity with workflow automation tools such as n8n

Responsibilities

• Develop responsive, user-friendly interfaces using React and Vite
• Create interactive charts and data visualizations with D3.js or similar libraries
• Integrate backend data via REST and GraphQL APIs
• Collaborate closely with data engineers to incorporate complex datasets into the product
• Optimize application performance, scalability, and reliability
• Implement best practices for security, CI/CD, testing, and code quality
• Work with product and design teams to translate business requirements into technical solutions
• Take ownership of features from ideation to deployment and monitoring in production
• Stay up to date with emerging technologies and contribute to technical decision-making

Хочеш вивести свої інженерні навички на новий рівень?
Ми шукаємо Senior Full Stack Engineer, який приєднається до команди та допоможе створювати сучасні data-driven вебзастосунки для клієнтів з усього світу.

Це чудова можливість працювати з передовими технологіями та долучитися до створення продуктів, які змінюють індустрії й впливають на мільйони користувачів.

У Sigma Software ми цінуємо експертність, креативність і командну роботу. Ти станеш частиною культури, що підтримує професійний розвиток, заохочує інновації та пропонує конкурентні умови.

Про клієнта

Наш клієнт — міжнародна компанія у сфері контенту та інформаційних сервісів із понад 100-річною історією. Вона активно формує майбутнє медіа та роботи з даними.

Компанія зосереджена на інноваціях і створює надійні рішення та інструменти, які допомагають інформувати, надихати й відкривати нові можливості для мільйонів людей по всьому світу. Має присутність на кількох континентах і відома високими стандартами якості, точності та технологічності.

Вимоги

• 5+ років досвіду розробки на JavaScript/TypeScript (frontend + backend)
• Сильний досвід роботи з React та Vite для створення масштабованих інтерфейсів
• Практичний досвід з Node.js, NestJS та розробкою REST API
• Досвід роботи з базами даних, зокрема PostgreSQL (AWS RDS) та BigQuery
• Досвід роботи з D3.js або подібними бібліотеками для візуалізації даних
• Розуміння сучасних AI-рішень на бекенді (включно з Agentic AI)
• Глибокі знання HTML, CSS, JavaScript

• Англійська — Upper-Intermediate і вище

   

Буде плюсом:

• Досвід роботи з Model Context Protocol (MCP)
• Знання інструментів автоматизації (наприклад, n8n)

Обов’язки

• Розробка адаптивних та зручних інтерфейсів із використанням React та Vite
• Створення інтерактивних графіків і візуалізацій даних (D3.js або аналоги)
• Інтеграція з бекендом через REST та GraphQL API
• Співпраця з data-інженерами для роботи зі складними наборами даних
• Оптимізація продуктивності, масштабованості та стабільності застосунку
• Впровадження best practices: безпека, CI/CD, тестування, якість коду
• Взаємодія з продуктовими та дизайн-командами для реалізації бізнес-вимог
• Відповідальність за функціонал — від ідеї до продакшну та моніторингу
• Участь у технічних рішеннях і впровадження нових технологій

We are looking for a senior full-stack engineer with proven experience in AI-powered document workflows.

Requirements

• 5+ years of software development experience
• Hands-on experience building production-grade AI document pipelines — not just LLM API integration, but full pipeline design and reliability
• Comfortable working with legal/commercial document structures — contracts, agreements, leases — at a level where no explanation of the basics is needed
• Experience with PDF processing: extraction, parsing, classification at scale
• Comfortable in fast-moving, small-team environments with high autonomy

• Familiarity with AI-assisted development tools (Claude Code, Cursor, or similar)

   

• Nice to Have
  Direct experience in real estate tech or legal tech products
  E-signature or document execution workflow experience
  Background in deal or transaction management platforms

Key Responsibilities

• Build AI pipelines to ingest and process document knowledge bases (regulations, contract templates, legal frameworks) and generate structured rules and logic
• Develop document understanding features: summarization, classification, party identification, payment terms, key dates, and required actions from uploaded PDFs
• Implement document state analysis — execution status detection, document categorization, follow-up identification
• Contribute across the deal intelligence stack: contract creation, e-signing workflows, payment triggers, file management, and compliance tracking
• Work autonomously and communicate proactively — own features end-to-end

Required Tech Stack

• Next.js / React — primary framework (frontend and API)
• Supabase — database and authentication
• Vercel — deployment infrastructure
• Claude API (Anthropic) — AI layer; strong prompt engineering skills required
• TypeScript — used throughout the codebase