Jobs at Djinni

Due to the launch of a new project, we are looking for a  Junior Automation QA Engineer (JS) to join our technical team and ensure stable product quality.

Responsibilities:

• Develop and maintain automated tests to ensure product stability;
• Create and execute test cases, covering critical areas with API/UI automation;
• Support and enhance the existing test automation framework based on new requirements;

• Work closely with developers and manual QA engineers to improve product quality.

   

Required Skills:

• 1+ years of experience with JavaScript/TypeScript and Playwright in test automation;
• Understanding of QA methodologies, tools, and processes;
• Basic programming skills and familiarity with OOP principles;
• Knowledge of JavaScript and experience in test automation;
• Hands-on experience with at least one test automation framework: Cypress, WebdriverIO, or Playwright;
• English (Intermediate level, written and spoken);

• Self-motivated, proactive, and result-oriented mindset.

   

Nice to Have:

• Experience with Linux, Docker;
• Knowledge of CI/CD processes;
• Experience working with SQL;

• Ability to integrate API calls with UI tests.

   

What We Offer:

• Work with experienced colleagues who are ready to share their knowledge;
• Opportunities for professional development and career growth;
• Involvement in various projects covering different areas of software development;
• Free English courses and daily language practice with colleagues;
• Paid vacation and sick leave.

We are looking a highly skilled Senior DevOps Engineer to join our team. In this role, you will help optimize our infrastructure, improve deployment and delivery processes, and ensure the reliability, scalability, and security of our services.

Responsibilities

• Build, operate, and continuously improve production infrastructure and deployment pipelines
• Manage and scale Kubernetes environments and associated cloud services
• Improve platform reliability through monitoring, alerting, and incident response practices
• Automate infrastructure provisioning and configuration using Infrastructure-as-Code tools
• Partner with engineering teams to streamline build/release processes and optimize developer experience
• Implement and promote security best practices across infrastructure and CI/CD workflows

• Troubleshoot complex system issues across cloud, networking, and container orchestration layers

   

Requirements

• 5+ years of experience in a DevOps/SRE/Platform Engineering role
• Strong knowledge of cloud platforms: AWS, Azure, or Google Cloud Platform
• Deep hands-on Kubernetes expertise, including managed platforms (EKS, AKS, GKE) and internals
• Experience with monitoring, logging, and alerting tools such as Prometheus, Grafana, Datadog, Coralogix, Logz.io
• Strong experience with containerization technologies (Docker, containers/CRI) and Kubernetes tooling (kubeadm, Minikube)
• Hands-on experience with infrastructure automation tools such as Terraform, Helm, ArgoCD, Terragrunt
• Strong scripting skills in Python, Bash, or similar languages
• Solid understanding of security concepts, principles, and best practices
• Excellent problem-solving abilities, attention to detail, and communication skills

This is a fantastic opportunity to join a fast-growing company at the heart of the digital revolution. Our software product is revolutionising manufacturing through automation. We are trusted by global brands and work across sectors (mobility, consumer goods, machinery etc).

We have a talented and ambitious team. We value integrity and are passionate about our mission to revolutionise advanced manufacturing.

This is your opportunity to:

• Be part of a fast-growing software product company in advanced manufacturing.
• Learn and fulfil your potential in an open, knowledge-driven culture.
• Share in our ambitious vision and make a meaningful difference towards autonomous manufacturing.

Responsibilities: 

• Development of new features and new parts of the app.
• Work in a cross-functional Scrum team alongside Frontend and QA Engineers.
• Maintaining, improving and extending existing functionality.
• Сonstantly improving code organization and evolving application design.

You will be joining a well-versed team if you have:

• Bachelor’s Degree or Master’s Degree in Computer Science.
• Minimum of two years of experience in Node.JS development.
• Minimum of one year of experience in React.JS development.
• Experience with Sequelize, PostgreSQL, database design, microservices.
• Test automation coverage.
• Understanding of CI/CD.
• Git branching strategies.
• Scrum Agile principles and processes.
• English level - Intermediate and higher.

Our tech stack: microservices, Node.JS, React.JS, PostgreSQL, Kubernetes, AWS.

Required Technologies:

Node.js, Express.js / Nest.js
JavaScript (ES6+) / TypeScript
SQL (PostgreSQL, MySQL), NoSQL (MongoDB, Redis)
REST API, GraphQL, WebSockets
Git (GitHub/GitLab), Docker (preferred)
Postman for API testing
 

Nice to Have:

Understanding of OOP, SOLID principles, and design patterns
Experience with testing frameworks (Jest, Mocha, Chai)
 

Requirements:

English level: B1 or higher
Strong motivation to learn and develop in backend engineering
 

We Offer:

Interesting and challenging projects
Vast opportunities for professional development
Competitive salary
Friendly team of professionals
Comfortable working environment

We’re a development studio that ships digital products fast.

We build MVPs in 3 to 6 weeks, and deliver services, web and mobile apps, and internal systems for clients across Europe, the US, and Asia.

We work remotely, stay flexible, and focus on outcomes.

We launch products and keep improving them together with the client after release.

If you’re in IT and want to build real products and see fast releases, you’ll fit in.
 

Who we’re looking for

Product Manager (Middle)

Focus on building successful digital products by aligning business goals, user needs, and development execution. Our typical workflow and tools:

• Product discovery, market and user research
• User interviews, JTBD, problem validation
• Roadmaps, OKRs, prioritization frameworks
• MVP definition and scope management
• Backlog management (Jira, Linear, ClickUp, Notion)
• Collaboration with design, frontend, backend, and mobile teams
• Product analytics (GA4, Amplitude, Mixpanel — when needed)
• A/B testing and hypothesis validation
• Stakeholder communication and reporting
• Documentation: PRD, specs, user stories

What you’ll do

• Define product vision, strategy, and roadmap
• Validate ideas through research and rapid MVPs
• Translate business goals into clear product requirements
• Manage backlog, priorities, and sprint planning
• Work closely with designers and engineers
• Launch products and iterate based on user feedback and data
• Monitor key metrics: activation, retention, conversion, revenue
• Align internal teams and external stakeholders
• Improve product-market fit and scalability

Skills we’re looking for

• Experience working with digital products (web/mobile/SaaS)
• Strong analytical and problem-solving skills
• Ability to write clear PRDs and specifications
• Understanding of agile/scrum processes
• Experience with product analytics and metrics
• Basic technical understanding (APIs, architecture, development process)
• Ability to use AI tools for faster workflows: research, analysis, documentation, ideation (with mandatory quality checks)
• Strong communication and leadership skills
• Ownership mindset and responsibility for results

We’re a development studio that ships digital products fast.

We build MVPs in 3 to 6 weeks, and deliver services, web and mobile apps, and internal systems for clients across Europe, the US, and Asia.

We work remotely, stay flexible, and focus on outcomes.

We launch products and keep improving them together with the client after release.

If you’re in IT and want to build real products and see fast releases, you’ll fit in.
 

Who we’re looking for
 

UI/UX Designer (Middle)

Focus on designing user-friendly, scalable, and business-oriented digital products. Our typical workflow and tools:

• User research, interviews, usability testing

• User flows, customer journeys, wireframes

• UI design for web and mobile applications

• Interactive prototypes and design validation

• Design systems, component libraries, style guides

• Figma (Auto Layout, Variants, Prototyping)

• Collaboration with developers and product managers

• Accessibility (WCAG), responsive and adaptive design

• Analytics-based improvements (Hotjar, GA, Amplitude — when needed)

• Design handoff and documentation for development teams

What you’ll do

• Design interfaces for MVPs and production products

• Create user flows, wireframes, and interactive prototypes

• Build UI for dashboards, onboarding, forms, and complex systems

• Develop and maintain design systems

• Work closely with frontend and mobile developers

• Participate in product discovery and UX research

• Improve usability, conversion, and retention after launch

• Iterate quickly based on feedback, analytics, and testing

Skills we’re looking for

• 2+ years of experience in UI/UX or product design

• Strong portfolio with web and/or mobile projects

• Confident work in Figma

• Understanding of UX principles and user-centered design

• Experience working with development and product teams

• Knowledge of responsive and adaptive design

• Basic HTML/CSS knowledge is a plus

• Ability to use AI tools for faster workflows: ideation, wireframes, content, research (with mandatory quality checks)

• Ability to present and defend design decisions

• Responsibility, clear communication, and teamwork

What we value

• Working fast while keeping quality high
• Independence and responsibility
• Product mindset
• Experience shipping MVPs and working in short iterations

We value people who take tasks all the way to production and can support a product after release.

What you get
 

• Remote work
• Flexible schedule
• International projects
• Fast MVP launches
• Post launch support and product development
• Long term project work, not one off tasks
• Small, strong team with minimal bureaucracy
• Growth in skills and compensation

If you like fast launches and improving products after release, message us.

AI Business Analyst

We invite you to join our product team developing a B2B SaaS platform specializing in Unreal Engine and next generation 3D visualization platforms for e-commerce.

Responsibilities:

1. Analyze existing business processes and workflows to identify where AI/ML solutions can drive efficiency or create value
2. Monitor the AI landscape and keep the product team and business stakeholders informed on emerging tools, particularly for 3D modeling, image generation, video generation, and editing
3. Design and execute experiments to evaluate AI products, writing test scenarios aligned with existing product workflows
4. Engineer and refine prompts for various AI systems
5. Research technical requirements for integrating AI tools with our Angular front-end, back-end services, and Unreal Engine applications to inform integration decisions

6. Conduct cost-benefit analyses and develop business cases for proposed AI investments

    

Requirements:

1. Hands-on experience with AI image generation models
2. Understanding of image generation control techniques such as ControlNet, IP-Adapter, or similar approaches
3. Familiarity with fine-tuning methods including LoRA (Low-Rank Adaptation) or equivalent techniques
4. Experience building or configuring AI agents, workflows, or automated pipelines using available platforms or frameworks
5. Written and spoken English sufficient for direct communication with US-based stakeholders
6. Ukrainian/russian language is needed to communicate with the team.
    

Nice to Have:

1. Familiarity with 3D modeling workflows and asset pipelines
2. Understanding of marketing image and video production processes
3. Ability to assess visual quality of AI-generated images and videos against production standards
4. Experience with AI-assisted development or coding tools

We are a development studio that launches digital products fast.

We build MVPs in 3–6 weeks and create services, web and mobile applications, and internal systems for clients from Europe, the USA, and Asia.

We work remotely, stay flexible, and focus on results.
 

We launch products and continue developing them together with our clients.

If you work in IT and want to build real products and see fast releases, you’ll fit right in.

Who we’re looking for

Mobile Developer (Middle+)

Focus on building mobile applications for iOS and Android. Our typical tech stack:

• Native iOS (Swift, SwiftUI, UIKit)
• Native Android (Kotlin, Jetpack, Compose, XML)
• React Native (TypeScript)
• State management: Redux, Zustand, MobX (depending on the task)
• API: REST, sometimes GraphQL
• Auth: JWT, OAuth, biometrics
• Payments: Apple Pay, Google Pay, Stripe SDK
• Realtime: WebSockets, Firebase / Pusher (when needed)
• Storage: SQLite, Room, Core Data, AsyncStorage
• Tooling: Xcode, Android Studio, Fastlane, ESLint, Prettier
• CI/CD: GitHub Actions, Bitrise, TestFlight, Play Console
• Analytics: Firebase Analytics, Amplitude, GA4, AppsFlyer
• Crash reporting: Firebase Crashlytics, Sentry
• Performance: profiling, memory leaks, startup time

What you’ll do

• Develop mobile applications from MVP to production
• Build user dashboards, onboarding flows, forms, and payment features
• Integrate mobile apps with backend APIs
• Implement offline mode and data synchronization
• Integrate payments, subscriptions, and in-app purchases
• Optimize app performance and stability
• Publish and maintain apps in the App Store and Google Play
• Work iteratively after release to improve UX, conversion, and retention

Skills we’re looking for

• Experience developing for iOS (Swift) and/or Android (Kotlin)
• Experience with React Native is a strong plus
• Understanding of mobile app architecture (MVVM, Clean, Redux)
• Experience with APIs, authentication, and security
• Experience publishing and updating apps in app stores
• Experience with push notifications and deep links
• Ability to write clean, maintainable code
• Ability to use AI tools to speed up development: code generation, refactoring, testing, and research (with mandatory quality checks before production)
• Git, pull requests, responsibility, and strong communication skills

What you get

• Fully remote work
• Flexible schedule
• International projects
• Fast MVP launches
• Ongoing product support and development after release
• Long-term projects instead of one-time tasks
• Small, strong team with minimal bureaucracy
• Professional and income growth

If you like fast launches and improving products after release, message us.

We are a development studio that launches digital products fast.

We build MVPs in 3–6 weeks and create services, web and mobile applications, and internal systems for clients from Europe, the USA, and Asia.

We work remotely, stay flexible, and focus on results.
We launch products and continue developing them together with our clients.

If you work in IT and want to build real products and see fast releases — you’re welcome to join us.

Who we’re looking for

 
Backend Developer (Middle+)

Focus on backend development and system architecture. Our typical tech stack:

• Node.js, NestJS, Express
• PostgreSQL, MongoDB
• ORM/ODM: Prisma, Mongoose
• API: REST, sometimes GraphQL
• Auth: JWT, OAuth, RBAC
• Payments: Stripe, PayPal, and similar solutions
• Realtime: WebSockets, Redis Pub/Sub (when needed)
• Caching: Redis
• Tooling: ESLint, Prettier, Swagger / OpenAPI
• CI/CD: GitHub Actions, Docker, basic DevOps
• Cloud/Hosting: AWS / GCP / Vercel / Railway (depending on the project)
• Monitoring: Sentry, LogRocket, Prometheus (when needed)
• Security: rate limiting, validation, API protection
 

What you’ll do

• Design and implement backend systems for MVPs and production
• Develop APIs for web and mobile clients
• Design database schemas and optimize queries
• Integrate payments, authentication, roles, and subscriptions
• Ensure system stability, security, and scalability
• Work with queues, caching, and background jobs
• Maintain API documentation
• Improve performance and reliability after launch

Skills we’re looking for

• Strong experience with Node.js, NestJS, and/or Express
• Experience with PostgreSQL and MongoDB
• Solid knowledge of Prisma and ORM concepts
• REST API design and understanding of backend architecture
• Experience with authentication, roles, tokens, and security
• Query optimization, indexing, and transactions
• Understanding when to use monoliths vs microservices
• Ability to use AI tools to speed up development: code generation, refactoring, testing, research (with mandatory quality checks before production)
• Git, pull requests, code reviews, and responsibility for results

What you get

• Fully remote work
• Flexible schedule
• International projects
• Fast MVP launches
• Long-term product development after release
• Ongoing projects instead of one-time tasks
• Small, strong team with minimal bureaucracy
• Professional and income growth

If you like fast launches and improving products after release, message us.

Community Manager (iGaming Affiliate Network)

We are looking for a proactive Community Manager to help build, grow and scale our iGaming affiliate network and technology product through dedicated communities.

This role is about communication, networking and community development: representing the brand, increasing platform awareness, attracting affiliate partners and supporting community activity.

The position is ideal for those who want to develop in the iGaming and affiliate industry and see the direct result of their work. Strong performance = rapid career and financial growth.

🔥 Main tasks

• Promoting the affiliate network and technology product in industry communities

• Building and maintaining a community in Telegram, Discord, forums, LinkedIn and profile chats

• Active interaction with affiliate partners and potential customers: answering requests, supporting discussions, updates

• Creating and publishing community content: announcements, product updates, educational posts, promos

• Supporting onboarding and activating new affiliates from community channels

• Representing the brand in external iGaming and affiliate communities, online events and discussions

• Collecting feedback from the community and transferring insights to the product, marketing and affiliate teams

• Supporting the launch of new features, tools and promotional campaigns

• Coordination with affiliate managers, marketing and product to coordinate communication

• Tracking community growth and engagement, participating in basic analytics

✅ Requirements

• Strong written and verbal communication skills

• Experience or strong interest in community management, digital marketing or affiliate marketing

• High interest in iGaming, affiliate networks and technology products

• Confident online communication and relationship building skills

• Good organizational and time management skills

• Proactivity, initiative and ability to work autonomously

• Willingness to work in a fast-paced, performance-driven environment

• English is a must; Ukrainian and/or Russian is a big plus

💼 We offer

• Work with an international iGaming affiliate network and technology product

• Direct influence on the growth of the brand and platform

• Practical experience in one of the most dynamic digital industries

• Access to global affiliate communities and markets

• Performance-driven environment with rapid career and financial growth

• A supportive team, training and real prospects for long-term development

We are looking for an experienced Unreal Engine Engineer to lead a small team of two Unreal developers and take full ownership of a production-stage Unreal Engine–based application used in e-commerce by real customers. This is a client-facing, high-impact product in which stability, visual quality, and performance directly affect the user experience.

The role combines hands-on Unreal development with technical leadership. You will also work as part of a cross-functional product team, collaborating closely with front-end and back-end engineers to ensure seamless integration between Unreal Engine and the rest of the application stack.

YOE: 5 years

Core Requirements:

• C++ Unreal development experience
• Experience compiling Unreal Engine from source
• Strong understanding of Unreal Engine architecture, Blueprints, and optimization for production use
• Proven ability to own and maintain a live Unreal Engine-based product
• Demonstrated experience leading or mentoring other developers
• Ability to make architectural and technical decisions that ensure stability, scalability, and performance
• Comfort working in a cross-functional team with front-end, back-end, and business stakeholders
• Oversee the coverage of existing and new functionalities with autotests
• Perforce version control
• Ukrainian/russian language is needed to communicate with the team
   

Nice to Have:

• Online game development and support 
• 3D modeling or visualization (3ds Max, Maya, Blender, etc.)
• Rendering engines (V-Ray, Corona, etc.)
• WebGL 
• Python or other scripting languages

• English language knowledge, sufficient for technical collaboration

   

Responsibilities:

• Lead and oversee the Unreal Engine development team (2 developers)
• Ensure stability, performance, and scalability of the production UE application
• Lead the effort to implement a public API for UE application
• Act as the Unreal Engine representative in a cross-functional product team
• Collaborate closely with front-end and back-end developers to align architecture and integrations
• Develop and improve tools for 3D asset assembly and scene management
• Work with content creators and artists to achieve optimal asset integration and visual fidelity
• Identify and automate repetitive or inefficient workflows
• Maintain and evolve the automated rendering and image production pipeline
• Continuously analyze and optimize memory usage, load times, and rendering performance
• Prototype and implement a new product hypothesis in collaboration with other product team members
• Provide technical feedback, documentation, and process improvements
• Automated application and asset update to the latest stable UE version on a yearly basis.
   

Expectations:

• Work remotely with consistent availability during core hours or from the office in Warsaw.
• Communicate proactively with the team and management about progress, blockers, and priorities
• Coordinate Unreal development efforts with front-end and back-end teams
• Manage personal and team workload effectively, ensuring delivery reliability
• Identify and drive improvements across technology, process, and pipeline
• Maintain transparency on issues and deadlines

• Project Description:

  Join the team modernizing the software delivery process for the Body Controls Organization, focusing on Body Control Module (BCM) and Battery Access Module (BAM) Electronic Control Units (ECUs) within the Fully Networked Vehicle (FNV) architecture. This initiative aims to design, implement, and maintain a robust Level 2 (L2) testing framework using a Virtual ECU (vECU) platform. The framework will automate and continuously improve software validation, ensuring all functional and performance requirements are verified in a virtual environment before hardware deployment. Integration with CI/CD pipelines will deliver continuous feedback on component quality, enabling early defect detection and improved software stability.

   

• Responsibilities:

  - Develop a scalable and modular Virtual ECU Development Studio (VEDS) for BCM and BAM ECUs.
  - Ensure compatibility with existing toolchains and enterprise development environments.
  - Implement co-simulation capabilities for seamless interaction between virtual and physical ECUs.
  - Configure the VEDS environment for L2 testing, including network simulation, signal routing, and diagnostic interfaces.
  - Create and execute detailed L2 test cases aligned with software requirements.
  - Automate test script development and integrate automated tests into CI/CD pipelines.
  - Expand virtual ECU test coverage and support development teams in debugging and root cause analysis.
  - Implement reporting and analytics for test coverage, defect trends, and performance metrics.
  - Participate in sprint-based development, contributing to objectives such as test strategy, environment setup, automation integration, test execution, and continuous improvement.

   

• Mandatory Skills Description:

  - Proficiency in Bash, C/C++, Conan, Docker, Cmake, ARM\RH850 baremetal, ghs toolchain, Python.
  - Experience with version control and artifact management tools (GitHub, Jfrog Artifactory).
  - Familiarity with test management tools (e.g., Testrail), defect tracking systems (e.g., JIRA), automation frameworks, and debugging tools.
  - Ability to develop modular, reusable automated test scripts and integrate them into CI/CD pipelines.
  - Knowledge of Automotive network simulation, signal routing, and diagnostic interfaces in automotive environments.
  - Hands-on experience with Matlab co-simulation (Simulink, Stateflow).
  - Strong analytical skills for software requirements analysis and test coverage alignment.

   

• Nice-to-Have Skills Description:

  - Proficiency in Groovy.
  - Experience with Polyspace and SonarQube for code quality and static analysis.
  - Prior involvement in mixed-mode testing scenarios (virtual and hardware ECUs).
  - Exposure to reporting and analytics for test coverage and defect trends.
  - Experience supporting development teams in debugging and root cause analysis.

About the company

GraphDex is building a unified trading and analytics terminal for DeFi. We aggregate liquidity, trading execution and analytics across multiple blockchains into a single interface.

We are a product Web3 startup with a small, highly technical team. We move fast, release often, and solve real infrastructure challenges.

About the role

We are looking for a Technical Project Manager who understands how Web3 development works and can coordinate engineers in a fast-changing environment.

This role is not about formal sprint bureaucracy or just tracking tasks. We need someone who can see bottlenecks early, coordinate team efforts, and help deliver features and releases under real

market pressure.

Responsibilities

• Coordinate development across backend, frontend and blockchain modules
• Work closely with Founder, QA and Product team
• Break product goals into clear technical priorities
• Identify blockers, risks and weak points in delivery
• Quickly reorganize team focus when priorities shift
• Coordinate integrations, releases and production launches
• Help the team handle bugs, scaling issues and unexpected production problems

Requirements

• Experience in technical project / delivery management from 5 years
• Solid understanding of Web3 / DeFi ecosystem
• Previous software development experience or strong technical background
• Understanding of system architecture, APIs and development workflows
• Experience participating in product launches or high-pressure release cycles
• Strong prioritization and decision-making skills

Will be a strong plus

• Experience with trading platforms or fintech products
• Experience working with Solana or other high-performance chains
• Experience with real-time or high-load systems

Language requirements

Working proficiency in Ukrainian or Russian is required.
English — intermediate level or higher.

What we offer

• Real Web3 infrastructure product (not outsourcing)
• Small expert team with direct communication
• High level of ownership and influence on processes
• Competitive compensation + possible equity

Requirements:

• 1+ years of experience in development
• Strong knowledge of Javascript and TypeScript
• Strong knowledge of Angular
• Strong analytical and problem-solving skills
• Experience working with RxJS ,NgRx ,signals, and new angular syntax template
• Confident AI prompting, understanding of LLM principles (Context window, RAG, System prompts)
• Experience working with AI coding assistants (Cursor, Claude Code, GitHub Copilot)
• Good understanding of asynchronous and reactive programming
• Confident working with the Git version control system
• Understanding of GraphQL
• Intermediate level of English

Would be a plus:

• Experience working with React
• Experience working with Websockets
• Experience building large-scale SaaS platforms supporting millions of users.

Responsibilities:

• Build features and systems with attention to detail and performance.
• Own end-to-end development, from conception to production.
• Engineer not only solutions but also tools to understand the problem.
• Work closely with cross-functional stakeholders to deliver a world-class product.
• Identify and implement improvements to our existing systems.

About the project:

Project management platform. With the help of own API, it’s possible to do multiple integrations with communication, sales, analytics and other applications that are used by co-workers on a daily basis.

We are looking for a frontend engineer to improve the beautifully crafted product that helps millions of people to enjoy their remote work! You will be responsible to deliver production-ready functionality in a cross-functional team and will be able to reach millions of people with your best effort and working time as part of a multinational team of highly skilled developers.

We are looking for a Backend Engineer to join a planned data and services migration project.
The main focus of the role is migrating data from MongoDB to PostgreSQL and rewriting part of the backend services.

This is not a firefighting role, but a structured technical migration with a clear scope and team support.

Responsibilities

• Participate in the migration of data from MongoDB to PostgreSQL
• Rewrite and adapt backend services using NestJS
• Translate MongoDB aggregation logic into SQL-based solutions
• Work with relational data models and transactions
• Optimize queries and data-related computations

• Collaborate with the team on migration-related technical decisionsTech Stack (Core)

  • Node.js 18+, TypeScript
  • react, socket.io
  • NestJS (modules, controllers, services, DI)
  • MongoDB + Mongoose
  • PostgreSQL
  • TypeORM
  • REST APIs, DTOs, validation

  Requirements

  • Commercial experience with Node.js and TypeScript
  • Strong knowledge of MongoDB, including aggregation pipelines
  • Good understanding of relational databases and SQL
  • Careful and accurate work with data and computations
  • Basic understanding of backend security (JWT, roles, permissions)
  • English level: Upper-Intermediate (sufficient for daily communication).
    Nice to Have (Not Required)
    • Experience with NestJS guards, pipes, interceptors
    • Redis, background jobs, or queues
    • Previous experience with database migrations
    • Neo4j or real-time features (Socket.IO)
    • Experience using AI-assisted tools (e.g. Claude Code)

Yojji is a development center, based in Europe. We are a team of specialists with great experience in JavaScript, full-stack development and web design. We provide outsource and outstaff services to reliable frequent customers and startups in the USA, Europe and Israel.