Jobs Fullstack

We are looking for a Middle/Senior Full-Stack Developer with strong Python/Django and SQL expertise to help develop and maintain a web application for migrating reporting functionality from Oracle APEX.

Our client is a leading Ukrainian bank undergoing significant digital transformation. The team is working on modernizing reporting solutions and migrating existing reporting functionality from Oracle APEX to a Python/Django-based web application. The role combines backend and frontend development with database analysis, reporting, dashboard development, and performance optimization.
 

Responsibilities:

• Analyze existing Oracle APEX reports, dashboards, SQL queries, and business logic.
• Develop and maintain backend functionality using Python and Django.
• Develop web interfaces using Django Templates, HTML, CSS, and JavaScript.
• Build interactive dashboards, tables, charts, and calculated metrics.
• Implement data filtering, search, sorting, grouping, and pagination.
• Develop report generation and export functionality in XLSX, CSV, and PDF formats.
• Migrate and implement user roles, authentication, authorization, and access control for reports and data.
• Analyze and optimize SQL queries and overall application performance.
• Connect Django applications to Oracle Database and work with Oracle SQL and PL/SQL.
• Validate migrated functionality and ensure data consistency between Oracle APEX and the Django application.
• Develop and integrate REST APIs, preferably using Django REST Framework.
• Document implemented functionality and support further development of the solution.

Requirements:

• Strong Python skills and hands-on experience developing web applications with Django.
• Commercial experience with Django backend and frontend development.
• Strong knowledge of Django ORM and experience optimizing database queries.
• Solid SQL skills and practical experience with Oracle Database.
• Good understanding of PL/SQL.
• Experience analyzing Oracle APEX applications, reports, dashboards, SQL queries, and business logic.
• Experience integrating Django with Oracle Database, preferably using python-oracledb.
• Experience developing interactive dashboards, tables, charts, filters, and calculated metrics.
• Strong HTML5, CSS3, and JavaScript skills.
• Experience implementing search, sorting, filtering, grouping, and pagination.
• Experience with data visualization libraries such as Chart.js, Apache ECharts, or similar.
• Experience generating and exporting reports in XLSX, CSV, and PDF formats.
• Understanding of authentication, authorization, role-based access control, and data access restrictions.
• Experience developing and integrating REST APIs.
• Experience optimizing web application performance and SQL queries for large datasets.
• Experience with Git.

Nice to have:

• Experience with Django REST Framework.
• Experience with PostgreSQL.
• Experience with Oracle APEX migration or modernization projects.
• Experience working with enterprise reporting or business intelligence applications.

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for an experienced mobile engineer who takes ownership of delivery across iOS and Android, including reliable integration with backend services.

We hire engineers, not just framework specialists. Flutter and Dart will be your primary mobile technologies, alongside Swift, Kotlin, and native build tools. We value pragmatic problem-solving, first-principles thinking, and the ability to work confidently with unfamiliar tools and existing codebases.

Your first assignment will be a focused mobile infrastructure setup and stabilization sprint for an enterprise field-inspection system. You will work alongside a dedicated Senior Full Stack Developer responsible for the backend, with your primary ownership covering mobile applications, native builds, releases, and API integrations. This will lead into ongoing architecture and development across our project portfolio.
 

Who are we?

We are Out Of The Box Systems: a Ukrainian team specializing in Rust Development, AI Engineering, Computer Graphics, Automation, and Custom Software Development.

We value ownership, accountability, continuous learning, and practical problem-solving. Our team works remotely with clients from the USA, Canada, Europe, and other international markets.
 

Workload

• Full-time remote collaboration
• Direct communication with clients, technical leadership, and engineering teams
• Immediate availability or the ability to join an active project within 1–2 weeks is a strong advantage
   

Responsibilities

• Own mobile application delivery across iOS and Android, from codebase assessment and architecture to implementation and production release
• Build and maintain Flutter applications, using Swift, Kotlin, and native SDKs for platform-specific functionality
• Maintain and troubleshoot Gradle, Xcode, and CocoaPods configurations, including dependencies, build scripts, and platform compliance settings
• Manage code signing, keystores, provisioning profiles, and automated delivery to TestFlight, the App Store, and Google Play internal and production tracks
• Implement and debug API communication, authentication tokens, multipart file uploads, and cloud storage integrations such as AWS S3
• Collaborate with backend and cloud engineers to trace integration issues end to end, validate API contracts, and resolve data flow problems
• Audit existing codebases, resolve dependency issues, remove deprecated code and templates, and improve build performance and application stability
• Adapt to new tools and SDKs as projects evolve; verify delivery through tests, logs, and agreed acceptance criteria
   

Required Skills

• Strong commercial mobile development experience, including production applications built with Flutter and Dart
• Proven experience shipping and maintaining applications on both the Apple App Store and Google Play
• Practical experience with Swift and Kotlin, including reading, debugging, and modifying native code on both platforms
• Confidence working with native build configurations and resolving issues involving Gradle, .properties files, R8/ProGuard, CocoaPods, or CMake as needed
• Strong understanding of backend integration: consuming REST/WebSocket APIs, handling authentication and session tokens, implementing multipart uploads, and debugging network requests end to end using Postman, network profiling tools, or cURL
• Understanding of asynchronous state management, caching, and offline-first synchronization
• Experience with Git, CI/CD, automated testing, debugging, and performance profiling
• Ability to navigate unfamiliar or poorly documented codebases, learn new tools, and deliver solutions independently
• Clear communication and ownership: report progress, flag blockers early with precise technical evidence, and work reliably toward agreed deadlines
• Upper-Intermediate English (B2) or higher
   

Preferred Skills

• Hands-on backend development experience with NestJS, TypeScript/Node.js, and PostgreSQL
• Experience with AWS services, particularly S3, RDS, ECS or App Runner, and secure configuration management
• Experience stabilizing legacy applications or taking over projects with limited documentation
• Experience with Rust or C++ and native library integration
   

What You Get

• A defined initial sprint with dedicated backend support, followed by opportunities across our project portfolio
• Diverse engineering challenges spanning mobile applications, cloud integrations, and distributed systems
• Fast decisions, direct access to technical leadership, and minimal unnecessary meetings
• Transparent, deliverable-driven compensation reflecting your skills, agreed scope, and execution
• Professional growth through hands-on work, feedback, and collaboration
• Long-term B2B collaboration with immediate project onboarding
   

How to Apply

Please send us:

1. A brief summary of your background and the applications you have brought to production on iOS and Android.
2. A link to your GitHub/GitLab profile or examples of technical problems you have solved across native or cross-platform stacks.
3. A short example of how you quickly learned an unfamiliar technology or resolved a difficult build or environment issue under pressure.
4. Your earliest available start date.

Solead Software is looking for an experienced React/.NET full stack developer to join our growing team to design and develop the next generation platform for information management industry. Our current task is to redesign and modernize one of the Web applications from user interaction standpoint, improving user workflows and replacing outdated ASP.NET MVC frontend with modern ReactJS user interface.

This Web application is one of the key elements of the existing large software platform to automate various business processes in information management domain. The platform is data centric with replicated and geographically distributed MS SQL environment. Various backend services and business operations are implemented in .NET technologies and exposed via APIs. Platform architecture includes a number of (micro-)services managed by Consul and used by other services and end-user applications.

Currently, Solead team consists of seven professionals tightly collaborating with remote teams in Europe and USA. Agile development process assumes regular (from daily to weekly, depending on the project) online teleconferences via Teams, daily code commits to Git, and weekly-to-monthly production releases. All development process is based on GitLab environment with AI assistants and very high attention to code quality and documentation.

Join our amazing team and work on a large-scale project utilizing best practices and approaches in software development industry. You’ll meet great people and software professionals who will share with you valuable knowledge and expertise. You’ll be creating real software for real users, and seeing how your products help them in daily work.

This is a full-time and long-term position in Lviv, Ukraine. We combine work in our modern and spacious office with work at home.

Technology Stack

• Frontend: React 19, TypeScript, TanStack Query (React Query), Tailwind CSS
• Backend: .NET 10, ASP.NET Core Web API, Entity Framework Core, RabbitMQ, JWT Bearer Authentication, SQL Server, Docker, Azure Cloud

• Tools: Consul, Swagger, GitLab, Visual Studio, Teams, MS Copilot / GitLab Duo

   

Duties and Responsibilities

• Design, implementation and maintenance of a new Web application in React and .NET (most of work will be in React frontend)
• Implementation of the provided UI/UX design in a modern, responsive and high-performance way
• Integration of the new frontend with already existing backend via multiple (existing and new) Web API endpoints
• Following well-established development practices, such as code review and documenting, code testing and merging, etc.
• Participation in Agile process, team meetings, technical brainstorming, peer reviews, etc.
• Regular communication to other team members, work progress/status reporting

• Proactive suggestions how to improve the code, UI/UX, business workflows, data structures, etc.

   

Skills and Qualifications

• B.Sc. or M.Sc. degree in computer science, applied math, or similar
• 5+ years of experience in Web application development in React and .NET technologies
• Solid expertise in React, Redux, React Query, Tailwind CSS, Playwright, Material-UI and other related tools and libraries
• Strong HTML/CSS/JS/TS programming skills
• Working knowledge of .NET programming platform (Core/Framework, C#)
• Good understanding of ASP.NET Core Web API and Entity Framework Core
• Expertise in cloud architecture and software integration patterns and techniques
• Git/GitHub/GitLab working experience
• Agile/Scrum knowledge and practice
• High attention to details, accuracy, analytical and troubleshooting skills
• Smartness, agility and ability for quick ramp-up
• Upper-intermediate English communication skills (B2+)

Our Customer:

Our customer is an international technology company developing a modern cloud-based SaaS platform used by businesses to automate and optimize their daily operations. The product serves enterprise customers and is built with scalability, reliability, and long-term maintainability in mind. The engineering team follows modern development practices, values clean architecture, and actively collaborates across product, design, and QA to deliver high-quality software.

Your Tasks:

• Design, develop, and maintain scalable full-stack web applications using .NET and React.
• Build reusable, maintainable, and high-quality backend and frontend components.
• Design and implement RESTful APIs and integrate backend services.
• Collaborate with Product Managers, UX/UI Designers, QA Engineers, and other developers throughout the development lifecycle.
• Participate in architecture discussions and contribute to technical decisions.
• Optimize application performance, scalability, reliability, and security.
• Troubleshoot and resolve issues across both frontend and backend systems.
• Work with Docker, CI/CD pipelines, deployment configurations, and monitoring tools to support reliable software delivery.
• Perform code reviews and share technical knowledge within the team.
• Follow Agile methodologies and software engineering best practices.

Required Experience and Skills:

• 5+ years of commercial experience in full-stack software development.
• Strong hands-on experience with .NET / C#.
• Strong experience with React and modern JavaScript/TypeScript.
• Experience designing and consuming RESTful APIs.
• Solid knowledge of SQL databases.
• Experience working with Docker, deployment pipelines, and monitoring tools.
• Experience with Git and modern CI/CD workflows.
• Strong understanding of object-oriented programming, software architecture, and design patterns.
• Excellent analytical and problem-solving skills.
• Ability to work independently and effectively in a cross-functional Agile team.
• Upper-Intermediate English or higher.

Would Be a Plus:

• Experience with cloud platforms (AWS, Azure, or GCP).
• Experience with microservices architecture.
• Knowledge of Kubernetes or container orchestration.
• Experience with automated testing and TDD.
• Previous mentoring or technical leadership experience.

Working conditions

• 5-day working week, 8-hour working day;
• Remote work.

Our Customer:

Our client is a global technology company developing an advanced cloud platform for AI-powered voice communication. Their product enables organizations to build, integrate, and deploy intelligent voice services by combining modern AI technologies, large language models, and enterprise-grade communication infrastructure. The engineering team focuses on creating scalable, cloud-native SaaS solutions that process real-time interactions while maintaining high performance, reliability, and security.

Your tasks:

• Design and develop new product features across both backend and frontend components.
• Build scalable backend services using modern .NET technologies.
• Develop responsive Single Page Applications using the latest React ecosystem.
• Design and integrate REST and GraphQL APIs.
• Work with relational and NoSQL databases while ensuring data consistency and performance.
• Participate in designing microservices-based architecture and distributed systems.
• Collaborate with product managers, architects, and other engineers throughout the entire development lifecycle.
• Leverage AI-assisted development tools (such as Claude, GitHub Copilot, etc.) to improve productivity while maintaining full
• ownership and understanding of the implementation.
• Write clean, maintainable, and well-tested code following modern engineering best practices.
• Contribute to architecture discussions, code reviews, and continuous product improvements.

Required experience and skills:

• 3+ years of commercial experience in Full Stack development.
• Strong experience with modern C#, .NET Core, and ASP.NET Core.
• Solid hands-on experience with the latest versions of React, including Functional Components, Hooks, and modern state management.
• Experience building Single Page Applications (SPA).
• Strong knowledge of Entity Framework.
• Experience designing and developing microservices-based applications.
• Practical experience with REST APIs and GraphQL.
• Experience with SQL and NoSQL databases (SQL Server, PostgreSQL, MongoDB, or similar).
• Good understanding of asynchronous programming, distributed systems, and cloud-native application development.
• Experience using AI-assisted development tools (Claude, GitHub Copilot, or similar) as part of the software development workflow.
• Ability to explain architectural decisions, coding approaches, and engineering best practices independently, without relying solely on AI-generated code.
• Strong analytical thinking, problem-solving skills, and ownership mindset.
• Experience working in Agile development environments.
• Upper-Intermediate (B2) or higher level of English.

Would be a plus:

• Experience with Docker and CI/CD pipelines.
• Experience with Azure and Azure Kubernetes Service (AKS).
• Knowledge of cloud-native SaaS architecture.
• Experience with high-load or real-time communication systems.
• Familiarity with modern software architecture patterns and system design.
• Experience participating in technical design discussions and architectural decision-making.

Working conditions

• 5-day working week, 8-hour working day;
• Remote work.

Our Customer:

Our customer develops specialized software products for professional business workflows. The engineering team works on established production applications and is looking for a full-stack engineer who can contribute across both frontend and backend development.

Your Tasks:

• Develop and maintain full-stack applications across React/TypeScript frontend and C# backend.
• Work on medium and large-scale production applications throughout the development lifecycle.
• Develop and maintain frontend functionality using React, including both Hooks and class-based components.
• Build and maintain backend functionality using ASP.NET MVC and Web API on the classic .NET Framework.
• Investigate, debug, trace, and resolve complex frontend and server-side issues.
• Apply software engineering principles, design patterns, and clean development practices.
• Quickly learn and adopt new technologies when required.
• Work independently while contributing across the full technology stack.

Required Experience and Skills:

• 3+ years of experience working with medium or large-scale React applications.
• Strong knowledge of React Hooks and classic class-based components.
• Strong TypeScript skills.
• Good understanding of core web technologies, including JavaScript, XHTML, and CSS.
• Production experience with Redux, Redux Saga, and Immutable.js.
• Strong frontend debugging and problem analysis skills.
• 2+ years of experience working with medium or large ASP.NET MVC or Web API applications.
• Hands-on experience with the classic .NET Framework; working experience with .NET Core is not required, but solid knowledge of .NET Core is required.
• Strong knowledge of C#, OOP, SOLID principles, design patterns, reflection, and algorithms.
• Strong understanding of XML and JSON serialization.
• Ability to debug, trace, and resolve complex server-side issues.
• Strong ability to learn new technologies quickly and work independently.
• University degree in Computer Science or a related field, or equivalent industry experience.
• Excellent English.

Would Be a Plus:

• Experience with AWS services such as SQS, EKS, and Fargate.
• Experience with cloud-oriented systems.
• Experience with Kubernetes.
• Experience with Node.js.
• Knowledge of nw.js or similar technologies.

Working conditions

• 5-day working week, 8-hour working day;
• Remote work.

Phoenix Games is a fast-growing technology company building next-generation iGaming and Web3 products for a global audience. We leverage cutting-edge technologies including AI, blockchain, and modern cloud infrastructure to create scalable gaming platforms with millions of potential users.

Our engineering culture values ownership, technical excellence, experimentation, and continuous innovation. We're looking for experienced engineers who enjoy solving challenging problems and building products that make an impact.

Your Mission

As a Senior Full-Stack Engineer, you'll work across the entire product stack, building scalable backend services, high-performance frontends, and AI-powered features used by thousands of players worldwide.

You'll collaborate with Product Managers, Designers, and Engineers to shape architecture, improve developer experience, and deliver new platform capabilities.

What You'll Do

• Design and develop scalable backend services with Node.js and TypeScript.
• Build modern React applications with exceptional user experience.
• Integrate AI-powered features using modern LLM APIs and agent-based workflows.
• Design and optimize PostgreSQL databases and backend architecture.
• Build secure REST APIs and real-time services.
• Improve application performance, reliability, and scalability.
• Participate in architectural decisions and code reviews.
• Work with cloud infrastructure and CI/CD pipelines.
• Collaborate on innovative Web3 and blockchain integrations.

Tech Stack

• Node.js
• TypeScript
• React
• Next.js
• PostgreSQL
• Prisma / TypeORM
• Redis
• Docker
• Kubernetes
• AWS
• GitHub Actions
• REST API
• WebSockets
• Tailwind CSS
• OpenAI / Claude APIs
• LangChain / AI SDKs (nice to have)

We're Looking For

• 2+ years of commercial experience with Node.js.
• Strong React and TypeScript skills.
• Experience designing scalable backend architectures.
• Solid knowledge of PostgreSQL and database optimization.
• Experience building REST APIs.
• Understanding of asynchronous programming and distributed systems.
• Experience with Docker and cloud infrastructure.
• Knowledge of CI/CD pipelines.
• Strong problem-solving skills.
• Upper-Intermediate English or higher.

Nice to Have

• Experience with AI applications, LLMs or prompt engineering.
• Experience building AI agents or workflow automation.
• Kubernetes experience.
• Web3 or blockchain integrations.
• Experience in high-load systems.
• Experience with Redis or message queues.
• Background in product companies or SaaS.

What We Offer

Work on cutting-edge AI, Web3 and gaming products with real technical challenges.

Fully remote work from anywhere in Europe.

Long-term B2B cooperation.

Highly competitive compensation in EUR or USD.

Regular salary reviews based on performance.

Annual performance bonus.

25 paid vacation days.

Paid sick leave.

Company laptop or equipment budget.

Home office allowance.

Personal learning budget for courses, books and conferences.

Paid certifications and technical training.

English language classes.

Private health insurance.

Mental health support program.

Sports and wellness compensation.

Team retreats and international offsites.

Flexible working hours with a healthy work-life balance.

Flat hierarchy where engineers influence technical decisions.

Opportunity to grow into Tech Lead or Staff Engineer as the company scales.

Why Phoenix Games?

You'll join an international engineering team building products from scratch with modern technologies—without legacy code or unnecessary bureaucracy. We value clean architecture, ownership, continuous learning, and engineers who love creating impactful software.

If you're passionate about full-stack development, AI, and building scalable products, we'd love to hear from you.

We are looking for an experienced Senior ColdFusion Developer to support and stabilize a large, established German multi-vendor marketplace during an important technology transition.

The platform is built on ColdFusion/Lucee and MySQL and has been operating successfully for many years. It supports a significant customer base, thousands of sellers, and an extensive product catalog spanning thousands of categories across consumer and business segments.

The marketplace handles complex seller workflows, product and catalog management, orders, payments, and multiple external integrations. The current focus is on maintaining platform stability and business continuity while the company prepares for the next stage of its technology evolution.

Requirements:

• 5+ years of hands-on ColdFusion and/or Lucee development experience in production environments
• Strong experience maintaining mature, business-critical web applications and large existing codebases
• Expert-level MySQL knowledge, including complex schemas and database structures
• Strong experience with REST APIs and third-party integrations
• Experience with e-commerce, marketplace, ERP, merchant, or similar integration-heavy systems
• Strong debugging and production troubleshooting skills
• Ability to work independently, take ownership of issues, and manage priorities across support and development tasks
• Good English communication skills and willingness to document code, integrations, and system knowledge
• Nice to have: Experience with large-scale or high-traffic marketplace platforms
• Nice to have: Experience with external marketplace, ERP, merchant, or product feed integrations
• Nice to have: Experience supporting legacy systems during migration or modernization
• Nice to have: Understanding of seller, order, payment, and marketplace workflows
• Nice to have: Familiarity with AWS-hosted applications

Responsibilities:

• Maintain and support the existing ColdFusion/Lucee marketplace platform
• Investigate and resolve bugs, production issues, and support escalations affecting sellers and buyers
• Maintain and develop business-critical integrations with external systems and partners
• Work with complex MySQL schemas, existing application logic, and legacy code
• Support selected critical development initiatives required to keep the platform operational during migration
• Improve application stability and troubleshoot issues across application, database, and integration layers
• Produce and maintain technical documentation for the codebase, integrations, and key system behavior

Benefits:

• Fully remote work
• Long-term engagement on a large European e-commerce platform
• High level of ownership and direct impact on platform stability
• Combination of production troubleshooting, backend development, database work, and integration tasks
• Opportunity to contribute during an important platform modernization period
• Collaboration with an international engineering environment

About Client:

A German multi-vendor online marketplace with over 10,000 product categories, ranging from electronics, fashion, home and garden to sports, collectibles, and business supplies. The platform supports both private sellers and shop operators, offers PayPal, Klarna, and Amazon Pay with buyer protection, and runs its customer service directly from an in-house team in Cologne rather than an outsourced call center.

Іndustry: Internet Marketplace Platforms

Location: Germany

TJHelpers is committed to developing strong engineering teams through mentorship, real project experience, and our “Helpers as a Service” model. We provide structured growth, hands-on practice, and a supportive environment where engineers can evolve quickly and meaningfully.

We are looking for a Senior Fullstack Developer (Technical Consultant) to join our team and help design, build, and scale modern web products across fintech, AI, telecommunications, healthcare, automation, and other fast-growing domains.

This role is ideal for an engineer who is equally confident working across frontend and backend development, participates in hands-on implementation, and contributes to architecture, technical planning, and consulting-driven engineering decisions.

Responsibilities

• Design, develop, and maintain scalable frontend and backend solutions for modern web applications 
• Build and improve user-facing features, APIs, integrations, and business logic 
• Participate in architecture design, technical planning, and engineering decision-making 
• Develop responsive, maintainable, and scalable frontend applications using modern frameworks and reusable component architecture 
• Build reliable backend services, APIs, and integrations using scalable backend technologies and integration patterns 
• Work with databases, external services, and third-party platforms 
• Collaborate closely with product, design, QA, DevOps, and engineering teams 
• Improve system performance, maintainability, scalability, security, and user experience 
• Participate in and lead code reviews, technical discussions, and engineering best practices initiatives  
• Diagnose and resolve complex issues in products and production environments 
• Transform product requirements into practical technical solutions and architectural decisions 
• Contribute to long-term technical strategy and platform evolution 

Requirements

• Strong commercial experience as a Fullstack Developer with hands-on work across both frontend and backend systems 
• Strong knowledge of modern JavaScript and/or TypeScript 
• Experience with frontend frameworks such as React, Next.js, Vue, or similar technologies 
• Understanding of frontend architecture, state management, and scalable UI patterns 
• Experience developing backend services and APIs using Node.js/TypeScript, Java, .NET, or similar backend technologies 
• Strong understanding of REST APIs, integrations, authentication, and client-server architecture 
• Experience working with relational and/or NoSQL databases 
• Understanding of software architecture principles, component-based design, and maintainable application structure 
• Experience with cloud platforms such as AWS, GCP, or Azure 
• Experience with Docker, testing, debugging, Git, and CI/CD pipelines 
• Ability to work independently, make technical decisions, and clearly communicate trade-offs and architectural choices 
• Strong problem-solving skills with a focus on reliability, maintainability, and production quality 
• English level: B2 or higher 

Nice to Have

• Familiarity with Kubernetes and modern deployment workflows 
• Experience with GraphQL, messaging systems, or event-driven architecture 
• Understanding of frontend performance optimization and modern rendering approaches 
• Understanding of performance optimization, observability, and production support practices 
• Experience with design systems, frontend architecture, or scalable UI platforms 
• Familiarity with AI products, data-intensive systems, or third-party platform integrations 
• Experience participating in technical consulting, solution design, or tech leadership initiatives 

What We Offer

• Work on real-world products across multiple industries and domains 
• Opportunity to participate in technical discovery, architecture, and solution design 
• Collaboration with strong engineers, tech leads, architects, and product teams 
• Clear growth path toward Tech Lead, Solution Architect, or Engineering Lead roles 
• Open engineering culture focused on ownership, transparency, and continuous improvement 
• Long-term projects, flexible schedule, and fully remote work opportunities

Remote | Full-time | Start ASAP

We’re looking for a Senior / strong Middle+ Full-Stack Engineer to join a fintech / wealth-tech product.
 

What’s important

• Strong TypeScript, React, Next.js
• Experience with Node.js / REST APIs
• PostgreSQL / Supabase
• Experience with multi-tenant SaaS
• Third-party API integrations, OAuth, webhooks
• Strong understanding of security and production systems
• High level of ownership and ability to quickly navigate a large codebase
   

Nice to have

• Fintech / banking integrations
• OpenAI / Anthropic or other LLM APIs
• Vercel, Sentry
• Plaid
• Google / Microsoft integrations
   

What you’ll do

Develop and maintain frontend and backend parts of the product, work with APIs, databases, integrations, authentication, and production issues.
 

What We Offer

• Long-term product project
• Transparent compensation
• Paid vacation and sick leave
• Learning and professional development support
• High-quality equipment
• Paid office lunches
• Anniversary gifts and baby bonus

Important: we’re looking for someone who can start ASAP.

Spredo is a leading AI-based platform for automating B2B outreach on Telegram.

Our clients include industry leaders in Web3 and iGaming, such as Hacken, CoinTelegraph, ChainGPT, and others.

Tech Stack

Must Have: Python, React, Docker.

Nice To Have: Claude Code, AI Agents Orchestration

Responsibilities

• Maintain the platform and resolve bugs promptly to ensure smooth operation for clients
• Continuously brainstorm and implement new features
• Communicate directly with clients via Telegram groups to answer technical questions and address reported issues
• Collaborate closely with the Founder and Technical Advisor via Slack, daily syncs, and monthly team calls
• Write documentation and shadow a senior full-stack developer

• Actively leverage tools such as Claude Max to improve development efficiency

   

Growth Opportunities

• Clear path for growth within the team
• Compensation increases based on performance
• Semi-annual performance reviews and adjustments
   

Work Format

• Fully remote position
• Flexible working hours (~30hr/week)
• Work on the weekends is fine
• Designed for university students currently undergoing their studies

Playtech‘s Marketplace and Engagement Games Product Team is looking for an experienced Fullstack Team Leader with strong full-stack web development background, excellent communication skills, and a proven ability to lead teams and deliver reliable, maintainable, customer-facing software.

Team Leader will lead the engineering team responsible for two established Playtech products: Marketplace, a casino content management product, and Engagement Games, a real-time gaming campaigns product.

The role combines engineering leadership, people management, and hands-on technical understanding. The Team Lead will guide the team in delivering high-quality full-stack solutions, support technical decision-making, improve engineering practices, and ensure effective collaboration with Product, Architecture, QA, DevOps, Delivery Management, and other teams.

Your influential mission. You will... 

• Lead and coordinate the full-stack engineering team.
• Own day-to-day progress tracking, and risk management.
• Work closely with Product, Architecture, QA, DevOps, Delivery Management, and external teams.
• Converting product requirements and business priorities into clear, well-defined technical tasks and structured delivery plans.
• Participate in solution design, technical discussions, architectural reviews, and implementation planning.
• Ensure effective engineering practices: code review, testing, documentation, CI/CD, observability, and production readiness.
• Mentor and coach engineers through feedback, technical guidance, code review, and regular communication.
• Improve team processes, engineering workflows, release predictability, and overall team efficiency.
• Contribute hands-on when needed in complex investigations, troubleshooting, or critical delivery situations.

Components for success. You...

• Bring 7+ years of professional software engineering experience, preferably in full-stack web development.
• Have 2+ years of experience in a leadership role, such as Team Lead, Engineering Lead, Tech Lead, Development Lead, or similar.
• Demonstrate strong experience with modern JavaScript / TypeScript web applications.
• Possess solid practical knowledge of React, Redux, ES6+, HTML5, CSS3, Node.js, REST APIs, MongoDB, and Redis.
• Have experience delivering customer-facing or business-critical web applications.
• Show a strong understanding of full-stack architecture, performance, testing, CI/CD, and production support.
• Have experience working with highly available, performance-sensitive, distributed, or event-driven systems.
• Are experienced in Agile environments and collaborating with cross-functional and distributed teams.
• Demonstrate strong ownership, accountability, and an engineering leadership mindset.
• Are able to lead people, delivery, and technical discussions effectively.
• Apply good technical judgment and guide teams toward simple, maintainable solutions.
• Communicate clearly with both technical and non-technical stakeholders.
• Show strong planning, prioritization, dependency management, and risk communication skills.
• Have the ability to mentor engineers and support their professional growth.
• Take a pragmatic approach to balancing delivery timelines, quality, and long-term product health.
• Pay high attention to detail and bring a collaborative, constructive approach to feedback and conflict resolution.

You'll get extra points for...

• Experience improving engineering processes, delivery metrics, release predictability, or team performance.
• Experience with frontend architecture, reusable component libraries, design systems, or micro-frontends.
• Experience in gaming, gambling, casino platforms, campaign management, or real-time engagement products.
• Experience with observability, monitoring, logging, and production incident analysis.

Thrive in a culture that values...   

• Technical excellence and engineering ownership.
• Initiative-taking and confident decision-making.
• Strong team environment and the ability work with the most recent market-leading technologies.
• Initiative-taking and confident approach at the workplace.
• Global scope and inclusive working environment where you can engage with diverse teams and perspectives.
• Constant learning and development opportunities and professional growth programs.
• Active lifestyle and mental well-being, supported through sports classes, master classes, and monthly well-being activities.
• Medical insurance.
• Paid vacation days, sick leaves and national holidays.
• Fully-equipped cosy office space located in the city centre (Gulliver, “Palats Sportu” metro station).

MARKETPLACE & ENGAGEMENT GAMES PRODUCT TEAM

Our team is dedicated to two of Playtech's products - Marketplace, a platform for managing casino content, and Engagement games - a promotional tool for creating and monitoring real-time gaming campaigns. Both products are stable and well-established, with Engagement games offering seamless integration and customization for engaging player campaigns. Marketplace simplifies the management of casino content, providing tools to access marketing assets and manage game certificates. We thrive in a friendly and collaborative environment, engaging in full stack development using JavaScript technologies like React, Redux, ES6+, and Node.js. Some of our responsibilities include maintaining client-facing and server-side applications, writing high-quality, scalable code, participating in the software development lifecycle, collaborating with other departments for ensuring smooth deployments, and refining internal processes.

Tech stack: React, Redux, ES6+, TypeScript, Node.js, MongoDB, Redis, REST APIs.

Playtech is an equal opportunities employer. Our mission is to welcome everyone and create inclusive teams. We celebrate differences and encourage everyone to join us and be themselves at work.

Company: QAIL AI (qail.ai) 
Team: Founding Engineering Location: Remote (US time zones preferred) 
Type: Full-time · Senior/Lead

About QAIL

QAIL is building the intelligence layer for the agentic web. We detect and verify the AI agents and bots hitting our customers' websites in real time, qualify legitimate buying intent, and expose MCP endpoints that let autonomous agents discover and transact with businesses. Our detection runs at the AWS edge on CloudFront and Lambda@Edge, processes high-volume traffic with sub-second latency, and closes the loop back to ad platforms through Click ID attribution.

We're a small founding team moving fast on a category that's forming right now. You'll have real ownership over the systems at the core of the product.
 

The Role

We're looking for a senior/lead full stack engineer with deep backend strength to own — and set technical direction for — our edge detection and signal pipeline: the part of QAIL that sees every request, fingerprints it, and decides in milliseconds whether it's a human, a known AI agent, or something trying to look like one.

This is a high-throughput, low-latency problem. You'll be comfortable thinking about request volume, p99 latency, and the difference between what you can compute at the edge versus what belongs in the aggregation layer. As one of our most senior engineers, you'll make the architectural calls, set the standards the team builds against, and mentor as we grow. You'll touch frontend too — the customer dashboard and our embeddable detection script — but the center of gravity is backend and edge infrastructure.

What You'll Do

• Build and own detection at the AWS edge (CloudFront + Lambda@Edge): User-Agent and ASN matching against published AI provider ranges, TLS fingerprinting (JA3/JA4), and request-shape signals — all before the page is served.
• Design the signal aggregation pipeline that fuses edge signals, server-side behavioral data (timing, path depth, headers), honeypot/pixel hits, and fingerprint consistency into an identity and intent decision.
• Engineer the system to handle large traffic volumes reliably and cheaply — latency budgets, backpressure, caching, and graceful degradation under load.
• Build and maintain our MCP endpoints and attribution API that close the loop between agent activity and the customer's ad platforms.
• Develop the embeddable client script (fingerprint capture, form integration) and contribute to the real-time analytics dashboard customers use to see bot traffic and lead quality.
• Set technical direction — own architecture decisions, establish engineering standards, review code, and mentor engineers as the team scales.
• Make pragmatic architecture calls appropriate to our stage — ship, measure, iterate; no premature microservices.

Our Stack

• Backend: Java (primary) for core services and the signal pipeline; Python a plus. Edge functions (Lambda@Edge / CloudFront Functions) run in JavaScript/Node and Python.
• Edge: AWS CloudFront, Lambda@Edge
• Detection signals: TLS/JA3/JA4 fingerprinting, ASN/IP reputation, behavioral & timing analysis, browser fingerprinting
• Protocols/APIs: MCP (Model Context Protocol) endpoints, REST, Click ID attribution feedback
• Frontend: Modern JS/TS, React-based dashboard, vanilla JS/TS embeddable scripts
• Infra: AWS-native; managed services over self-hosted where the cost delta is modest

What We're Looking For

• 7+ years of backend engineering, with a track record building high-traffic, latency-sensitive systems (APIs, pipelines, or real-time services at scale).
• Strong proficiency in Java (our primary backend language); Python a plus, plus comfort writing edge functions in JavaScript/Node or Python (Lambda@Edge / CloudFront Functions) and working across the full stack.
• Hands-on experience with AWS edge / serverless (CloudFront, Lambda@Edge, Lambda) — or deep CDN/edge-compute experience you can transfer quickly.
• Strong grasp of HTTP, TLS, networking, and request lifecycle fundamentals.
• Demonstrated technical leadership: owning architecture, setting standards, and raising the bar for engineers around you.
• A pragmatic, ownership-driven mindset suited to an early-stage team: you scope, build, and ship end to end.

Bonus Points

• Background in bot detection, anti-fraud, ad tech / mar tech, or web security.
• Familiarity with fingerprinting techniques (TLS, canvas/WebGL, behavioral) from either the detection or evasion side.
• Experience with MCP, agentic systems, or LLM application infrastructure.
• Startup experience strongly preferred — you've thrived in an early-stage, high-ambiguity environment before.
• Big plus if you've been a startup founder yourself — you know what it takes to build from zero and own outcomes end to end.

What We Offer

• A founding-team seat in an emerging category, with influence over product and technical direction.
• High autonomy and direct ownership of core product systems.
• Remote-first, fast-moving, low-bureaucracy environment.

We are helping our partners at Risklick, a Swiss tech company working in the pharmaceutical and clinical research field, to find a Full-Stack Developer for their product team.

Their main product, Protocol AI, is an AI-powered platform for working with clinical trial protocols and related documentation.
 

Responsibilities:

• Developing new features and improving existing functionality.
• Working on both backend and frontend parts of the product.
• Designing and implementing new modules and integrations.
• Working with databases and optimizing existing application logic.
• Participating in technical and architectural discussions.
• Working with documents and structured data.
• Collaborating with the product and engineering team in English.
   

Requirements:

• 5+ years of commercial development experience.
• Strong experience with TypeScript and Node.js.
• Hands-on experience with Next.js and React.
• Experience with Prisma and PostgreSQL.
• Strong backend background and understanding of application architecture.
• Experience with full-stack product development.
• Good English for daily communication and technical discussions.
• Ability to work independently and take ownership of your tasks.

A candidate who started as a Backend Developer and later moved into full-stack development would be a particularly good fit.
 

Nice to have:

• Experience in Pharma, MedTech, HealthTech, or clinical research.
• Experience with document-heavy products or document processing.
• Experience with AI development tools.
   

What we offer:

• Fully remote, full-time cooperation.
• Working hours: 10:00–18:30 Kyiv time.
• No time trackers.
• Jira and Slack for day-to-day work.
• Claude Code as part of the development workflow.
• English-speaking work environment.
• Compensation discussed in gross.

We are looking for a Senior Full Stack Engineer with strong experience in VoIP, SIP telephony, and conversational AI to join a Healthcare product.

You will help develop an intelligent voice solution that automates pharmacy calls, processes prescription-related requests, and connects patients with pharmacy staff when needed.

RESPONSIBILITIES:

• Develop and improve the voice agent, including conversation flows, patient verification, fallback scenarios, and call transfers;
• Build backend services and integrations with pharmacy management systems;
• Maintain the telephony layer, including SIP, RTP, codecs, DTMF, and PBX integrations;
• Optimize STT, LLM, and TTS pipelines for performance, accuracy, latency, and cost;
• Implement monitoring, call tracing, quality evaluation, and regression testing;
• Investigate production issues and contribute to architectural decisions.

REQUIREMENTS:

• Senior-level experience in backend or full-stack development;
• Strong knowledge of Python or TypeScript/Node.js;
• Hands-on production experience with VoIP and SIP telephony;
• Experience building IVR systems, voice bots, or LLM-powered voice agents;
• Understanding of STT, TTS, turn-taking, tool calling, and real-time voice processing;
• Experience integrating LLMs and third-party systems into production;
• Working knowledge of Asterisk or a similar PBX;
• Strong problem-solving, ownership, and communication skills.

WILL BE PLUS:

• Experience with LiveKit Agents, Vapi, Retell, jambonz, or similar platforms;
• Knowledge of Kamailio, OpenSIPS, FreeSWITCH, or MCP;
• Experience in Healthcare or other security-sensitive environments;
• Knowledge of React, Docker, Terraform, and observability tools.

MAIN BENEFITS:

• Flexible working hours;
• 25 paid days off and 10 sick/medical leaves;
• Additional paid days off for personal events;
• Maternity/Paternity leaves;
• Medical insurance;
• Self-development budget;
• Referral bonuses;
• Corporate events and gifts;
• Speaking Clubs;
• PE accounting and support.