Jobs at Djinni

Start: asap
Location: any
Duration: we are waiting for the client’s feedback, but most of all, at least 3 months
English: B2

Seniority and FTE:
This is a mid-level/senior position - we want someone with previous experience in implementing and deploying ML systems. 100% would be preferable, alternatively 50% would work, but we'd probably need someone would was more expert-level than mid if it was part-time.

Requirements:

• Experience with Python and familiarity with data science/ML libraries (pandas, numpy, scikit-learn, PyTorch)
• Experience applying ML techniques to financial problems would be advantageous
• Understanding of core ML concepts, including supervised and unsupervised learning approaches
• Creation of machine learning solutions using: monte carlo simulations, reinforcement learning, optimisation techniques
• Experience with the Nvidia AI stack would be a big plus

We are looking for a Senior React.js Developer to join our growing engineering team. You’ll be responsible for building modern, high-performance web applications using React, TypeScript, and related technologies. You’ll work closely with designers, backend engineers, and product managers to deliver clean, scalable, and maintainable code.
 

Responsibilities

• Develop and maintain complex, high-quality frontend applications using React.js and TypeScript.
• Collaborate with backend engineers to integrate RESTful APIs.
• Implement SSR/SSG for performance and SEO optimization using Next.js.
• Optimize applications for maximum performance and scalability.
• Write clean, reusable, and testable code following best practices.
• Participate in code reviews and provide constructive feedback.
• Work closely with designers to implement responsive and user-friendly UIs.
• Troubleshoot, debug, and enhance existing applications.
• Contribute to architectural decisions and product planning.
   

Requirements

• 5+ years of experience in frontend development.
• 3+ years of professional experience with React.js and Next.js.
• Strong knowledge of TypeScript, JavaScript (ES6+), HTML5, and CSS3.
• Experience with state management libraries (Redux, Zustand, or MobX).
• Proficiency in building responsive, cross-browser web applications.
• Experience with build tools (Webpack, Vite, or similar).
• Understanding of frontend testing (Jest, React Testing Library, Cypress).
• Strong understanding of Git workflows and CI/CD practices.
• Excellent problem-solving skills and attention to detail.
• Good communication skills and ability to work in a distributed team.
   

Nice to Have (a Plus)

• Backend experience with Python.
• Database knowledge, especially PostgreSQL.

• Familiarity with AWS services.

  
   

We Offer

• Competitive compensation based on experience.
• Opportunity to work on high-impact international projects.
• Supportive, collaborative, and open-minded team environment.

✅ Requirements:

✔️ 3+ years of related work experience

✔️ Solid knowledge of testing processes, methodologies, and standards

✔️ Experience in web projects testing

✔️ Experience in defining scope of testing, developing testing approach

✔️ Attentive to detail, analytical skills, and a scientific approach to problem-solving

✔️ Basic SQL knowledge

✔️ Strong verbal/written communication & an excellent attention to detail

✔️ Knowledge of JIRA and / or similar bug tracking tools

✔️ Experience in test documentation creation and maintenance experience in defining scope of testing, test plan, writing test cases,

✔️ Intermediate+ level of English (both verbal and written)

✅ Will be a plus 

✔️ Experience in I18n,l10n testing 

✔️ Experience in API testing

✔️ Knowledge of Azure Data Factory

✅ Duties and opportunities

✔️ Manual testing of web applications

✔️ Defects management in the bug-tracking system

✔️ Test documentation management

✔️ Collaboration with project team

HypeON is a fast-growing affiliate network focused on influencer marketing, operating in niches such as iGaming, crypto, betting, fintech, and entertainment.
 

We partner with top bloggers, streamers, and brand ambassadors worldwide, launching campaigns that deliver real impact. Our ecosystem connects brands and creators in a space where influence drives results

We are looking for a creative and proactive SMM Manager to join our team. You will be responsible for developing and implementing social media strategies, growing our audience, and keeping our content fresh and engaging across multiple platforms. If you are passionate about trends, analytics, and digital communication - this is your role!
 

Responsibilities:

• Develop and implement content plans, adapting posts for different social media platforms (Instagram, Telegram, LinkedIn, etc.).
• Manage SMM activities across social networks, forums, and relevant groups: search, registration, and posting.
• Monitor trends and propose new directions for promotion.
• Prepare briefs for content writers and designers for both text and visual components.
• Track analytics, grow the audience, and prepare performance reports.
   

Requirements:

• 1–2 years of proven experience in SMM.
• English proficiency at Upper-Intermediate level or higher.
• Knowledge of social media promotion tools and current trends.
• Basic understanding of graphic design and proficiency in tools like Canva, Figma, Photoshop; experience with graphic and video editors is a plus.
• Proactive, able to multitask, and manage several projects simultaneously.
• Creative mindset with a good sense of trends and visual style.
   

We offer:

• Competitive salary with performance-based (KPI) bonuses.
• Modern office in Wrocław.
• Support with relocation.
• Friendly international team and a supportive work environment.
• Exciting projects in a dynamic, fast-growing industry

🎮 Requirements:

✔️ Experience as a UIUX Designer

✔️ Strong aesthetic skills with the ability to combine various colors, fonts, and layouts

✔️ Attention to visual details

✔️ Ability to meet deadlines and collaborate with a team

✔️ Passion for gaming

✔️ Understanding of HTML&CSS and adaptive markup basics.

✔️ Experience in creating the design for both complicated systems and marketing product interfaces

✔️ Understanding of UI/UX, UI/UX Guide, responsive, Mobile first, Design Thinking concepts

✔️ Experience creating and controlling libraries and Style Guide

✔️ Working with retouching and graphics

🎮 Responsibilities:

✔️First of all, to create and implement with a team of designers and artists new projects bordering on games!

✔️ Design original pieces, including illustrations and infographics

✔️ Review junior designers’ work to ensure high-quality

✔️ Generate ideas to portray concepts and advertise products/services

✔️ Maintain brand consistency throughout all our marketing projects

✔️ Work with components in Figma

✔️ Work closely with Front-end and design team

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product:

Our client is a global B2B SaaS company that provides a next-generation engagement and loyalty platform. The platform enables enterprises to boost user engagement, increase retention, and drive lifetime value through personalized experiences.

By combining behavioral science with real-time data, the solution allows companies to design missions, challenges, and rewards that inspire meaningful interaction and long-term loyalty. It’s a flexible, data-driven system used across various industries — from online entertainment and education to enterprise services — helping brands turn user activity into sustained growth.

About the Role:

We are seeking a Backend Engineer (Node.js) to join a remote, product-focused engineering team responsible for developing and scaling the core backend services that power millions of daily interactions.

In this role, you’ll take full ownership of features — from design to deployment — and work closely with peers in a distributed, asynchronous environment. You’ll tackle both platform-wide features and bespoke integrations for enterprise customers, contributing directly to the evolution of a high-impact, global product.

Key Responsibilities:

• Design, build, and maintain scalable backend systems and engaging user interfaces
• Manage data and messaging services while assuring performance and reliability
• Deploy, monitor, and optimize services in cloud environments
• Write clean, tested, and maintainable code that supports a high-scale, resilient platform
• Handle 40% support/customised work and 60% new feature development.

Required Competence and Skills:

• 4+ years of professional experience as a Fullstack or Backend Developer
• Strong knowledge of Node.js, Express, and JavaScript/TypeScript
• Proven experience with React or another modern frontend framework
• Hands-on experience with MongoDB, Redis or other similar databases, and distributed messaging systems (RabbitMQ, Kafka, BullMQ)
• Familiarity with cloud environments (AWS / GCP / Azure)
• Experience with the end-to-end development lifecycle.
• Sense of ownership, ability to work asynchronously across time zones.
• Excellent English communication skills, both verbal and written

Nice to have:

• Kubernetes knowledge
• CI/CD pipeline experience and automation skills
• Background with gamification, loyalty, or engagement platforms

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

Boosty Labs is a premier blockchain development company with broad technical expertise and over 150 highly skilled developers and strategists on the team. Founded in 2017, Boosty Labs has completed 250+ projects and collaborated with numerous industry giants.
Join us as a Senior Blockchain Protocol Engineer — Go.


    Requirements:

• 5+ years of professional software engineering experience
• Golang – Expert-level proficiency with production experience in systems programming
• Bitcoin – Hands-on experience with UTXO and/or Lightning Network
• Strong understanding of cryptographic primitives and their applications
• Knowledge of P2P networking and distributed systems
• Experience with blockchain node infrastructure and RPC implementations
• Familiarity with Bitcoin internals and execution environments
• Upper-Intermediate English
  
  Nice to have:
• Contributions to major blockchain open-source projects
• Experience with formal verification methods
• Background in cryptography research or protocol design
  
  Responsibilities:
  Core Development:
• Design, implement, and optimize blockchain protocol components using Golang

• Contribute to consensus mechanism development and optimization

  System Architecture:

• Design scalable and secure protocol architectures
• Optimize performance for throughput, latency
• Ensure protocol security through threat modeling and security reviews

• Collaborate on cross-layer integration between L1 and L2 systems

  Quality & Documentation:

• Write comprehensive technical documentation for protocols and implementations
• Develop testing frameworks for protocol validation and verification
• Conduct code reviews focusing on security and performance

• Contribute to protocol specifications and improvement proposals

  Collaboration & Innovation:

• Participate in protocol design discussions and architecture decisions
• Mentor junior engineers on blockchain and scalability technologies
• Engage with the broader blockchain developer community
  
  Remote working format
• Flexible working hours
• Informal and friendly atmosphere
• The ability to focus on your work: a lack of bureaucracy and micromanagement
• 20 paid vacation days
• 7 paid sick leaves
• Education reimbursement
• Free English classes
• Psychologist consultations

PayPilot is a fast-growing fintech startup building the next generation of solutions for seamless B2B and B2C international payments. We're developing the product from scratch, and quality is a top priority. 

We're looking for a  Senior manual QA Engineer with a strong focus on API and backend testing to join our team and help ensure stability, accuracy, and a smooth user experience from the inside out.

 What you’ll do:

• Manually test RESTful APIs using tools like Postman, Swagger, etc.
• Validate request/response formats, HTTP status codes, and backend business logic
• Identify bugs, inconsistencies, and edge cases — and report them clearly
• Write and maintain test cases, checklists, and documentation
• Work closely with developers and product managers to clarify requirements and expected behavior
• Perform regression testing of backend components
• Analyze logs, inspect database records (optionally with support), and report backend issues

• Participate in test planning and help improve overall product quality and testing processes

   

We’re looking for someone who:

• Has 5-6 years of experience in manual QA, ideally with a backend focus
• Confidently works with Postman, Swagger, JSON, and HTTP basics
• Understands REST APIs, response structures, and status codes
• Writes clear bug reports and reproductions
• Has basic SQL/logs skills or is eager to learn

• Thrives in a fast-paced, startup environment and takes initiative

   

Nice to have:

• Experience testing fintech products, banking APIs, or payment systems
• Familiarity with CI/CD processes and tools
• English at a level sufficient for reading docs and writing bug reports

Backend Engineer (Node.js)

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product: 

Our client is a global B2B SaaS company that provides a next-generation engagement and loyalty platform. The platform enables enterprises to boost user engagement, increase retention, and drive lifetime value through personalized experiences.

By combining behavioral science with real-time data, the solution allows companies to design missions, challenges, and rewards that inspire meaningful interaction and long-term loyalty. It’s a flexible, data-driven system used across various industries — from online entertainment and education to enterprise services — helping brands turn user activity into sustained growth.

About the Role: 

We are seeking a Backend Engineer (Node.js) to join a remote, product-focused engineering team responsible for developing and scaling the core backend services that power millions of daily interactions.

In this role, you’ll take full ownership of features — from design to deployment — and work closely with peers in a distributed, asynchronous environment. You’ll tackle both platform-wide features and bespoke integrations for enterprise customers, contributing directly to the evolution of a high-impact, global product.

Key Responsibilities: 

• Design, build, and maintain scalable backend systems and engaging user interfaces
• Manage data and messaging services while assuring performance and reliability
• Deploy, monitor, and optimize services in cloud environments
• Write clean, tested, and maintainable code that supports a high-scale, resilient platform
• Handle 40% support/customised work and 60% new feature development.

Required Competence and Skills:

• 4+ years of professional experience as a Fullstack or Backend Developer
• Strong knowledge of Node.js, Express, and JavaScript/TypeScript
• Proven experience with React or another modern frontend framework
• Hands-on experience with MongoDB, Redis or other similar databases, and distributed messaging systems (RabbitMQ, Kafka, BullMQ)
• Familiarity with cloud environments (AWS / GCP / Azure)
• Experience with the end-to-end development lifecycle.
• Sense of ownership, ability to work asynchronously across time zones.
• Excellent English communication skills, both verbal and written

Nice to have:

• Kubernetes knowledge
• CI/CD pipeline experience and automation skills
• Background with gamification, loyalty, or engagement platforms

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

Job Description

Must have

• At least 6 years of commercial experience with Nodejs;
• Strong knowledge of vanilla JavaScript and Nodejs;
• Experience with development RESTful interfaces using Nodejs & Express;
• Good understanding and practical experience with AWS;
• Understanding and experience with using RabbitMQ.
• Strong knowledge of application design principles and unit testing;
• Good understanding of Continuous Integration and Continuous Delivery principles;
• Hands-on experience with GenAI tools and frameworks (Cursor, Claude, ChatGPT, etc.);
• Understanding of GenAI adoption practices — how to integrate and leverage generative AI capabilities within existing systems and development workflows;
• Team and/or technical leader experience;
• Good knowledge of PHP will be a plus;
• Proactiveness is a must, ability to work independently with no or minimal supervision;
• Strong communication skills, both written and spoken.

 Responsibilities:

• Lead development team, ensuring effective task distribution, technical guidance, and alignment with project goals.
• Collaborate closely with the Client’s R&D team to align on requirements, coordinate with co-developers and management, and provide regular progress updates — strong communication skills are essential.
• Design and implement high-quality, efficient server-side code following best software engineering practices.
• Focus on performance optimization, conduct defect analysis, and troubleshoot existing solutions to ensure maximum system efficiency.
• Engage in DevOps-related activities, including work with AWS, CI/CD pipelines, Grafana, and other tools, as you become more familiar with our infrastructure.
• Participate in the continuous expansion of system functionality by developing new features and services.

Department/Project Description

A product is an affordable alternative to traditional broadcast video capture system. We provide a full broadcasting solution for amateurs, broadcasters, sports leagues, clubs, coaches and consumers, offering unique, interactive and immersive viewing experiences.

The AI-based automated production solution provides the sports market with easy and affordable ways to produce and distribute high-quality game, player videos and performance analysis. The system consists of a unique panoramic camera head and standard computers running proprietary algorithms for Panoramic and HD video and camera control.  

Giving an editing platform for multiple types of athletic events we establish the first end-to-end automated video and data solution in the sports industry. The product revolutionizes sports video with an automated online video editing system that enables coaches to simply and easily access game video break downs, saving them time and hassle. Our range of products include game analysis, game exchange, and video replay. We support all major team sports and caters to every level from youth, high school, college, through professional.

Company operates as a licensed operator under the Geo India jurisdiction, leveraging a proprietary, fully custom-developed platform. While the platform itself constitutes the company’s primary product, all games, slots, casino content, and Sportsbook services are sourced and integrated from external third-party providers.

Responsibilities

• Define and execute the Sportsbook product vision, strategy, and roadmap aligned with business objectives;
• Drive the development and optimization of betting markets, odds display, personalization, and UX across web and mobile;
• Lead discovery and prioritization of opportunities using customer insights, competitor research, and data analysis;
• Collaborate with trading, risk, CRM, marketing, and engineering teams to deliver impactful Sportsbook features;
• Design and oversee experiments (A/B tests) to validate hypotheses and measure business impact;
• Track and improve key product KPIs: conversion, bet frequency, margin, ARPU, retention, and LTV;
• Stay updated on market trends, betting behavior, and competitor offerings to ensure a best-in-class Sportsbook experience.

Key Success Metrics:

• increase in Sportsbook revenue and margin;
• Growth in active bettors and bet frequency;
• Improvement in retention and engagement;
• Faster time-to-market for new features and betting markets.

Requirements

• 3+ years of experience as a Product Manager in iGaming mandatory, preferably with direct Sportsbook exposure;
• Strong understanding of betting markets, odds, risk management, and Sportsbook KPIs;
• Proven track record of delivering impactful product features in fast-paced environments;
• Ability to analyze data, translate insights into strategy, and make evidence-based decisions;
• Excellent communication and stakeholder management skills;
• Proficiency with product tools: Jira, Confluence, BI dashboards, A/B testing platforms.

Nice-to-have:

• Experience working across multiple geographies, especially Tier-2 / Tier-3 markets;
• Familiarity with AI-driven personalization and modern Sportsbook engagement mechanics.

TurboStars is a multi-product IT company delivering fast, high-quality, and cutting-edge B2B solutions for the iGaming industry.
One of our flagship products is Sportsbook — an innovative sports betting platform that provides millions of users worldwide with the best possible experience.
We are currently looking for a Front-End Developer to help us maintain the quality and reliability of our product 🚀

Skills:
- 2+ years of experience in frontend development
- Strong knowledge of JavaScript (ES6+) and React
- Hands-on experience with MobX or another state management library
- Experience working with Ant Design / Material UI or similar libraries
- Solid understanding of SCSS / CSS Modules
- Experience configuring and optimizing builds with Webpack
- Familiarity with version control systems (Git)

Responsibilities:
- Develop and maintain web applications using React
- Ensure high performance and smooth user experience
- Manage application state using MobX
- Integrate with REST API and WebSocket
- Write clean, maintainable, and scalable code
- Build responsive and modern UI using Ant Design and AntD Pro Components
- Collaborate with designers and backend developers

Nice to have
- Experience with TypeScript
- Knowledge of React Router, Axios, Formily, Ant Design Pro Layout
- Understanding of frontend architecture patterns
- Experience with performance optimization (Lighthouse, Core Web Vitals)

What we offer:
🧘‍♂ Work—Life Balance
Even in challenging times, we’ve built an environment where it’s pleasant to work and grow. You’ll find a balance between work and rest, and feel what it’s like to be part of a team that truly values you.

💻 Work Format
— Choose where and how you work — from home, the office, or anywhere in the world
— Flexible schedule — we respect your personal rhythm

🎉 Atmosphere & Development
— Gifts, raffles, training, team-building events, and corporate parties — it’s never boring with us!
— Internal training, mentoring, and access to courses
— Career growth without bureaucracy

🏝 Vacation & Sick Leave
— 20 working days of paid annual vacation
— 100% paid sick leave with no bureaucracy

🚀 Why us?
If you’re looking for a friendly and ambitious product company that:
— Uses modern technologies
— Values initiative and independence
— Is committed to continuous growth of both the team and the product

Then we’re waiting for you 🤝

We’re looking for a Head of Growth Marketing — an experienced marketing leader who will drive the growth strategy and performance across our entire product portfolio.

You’ll oversee everything from user acquisition to creative production and growth analytics, balancing hands-on performance expertise with strategic vision. 

Key Responsibilities

• Own the growth and marketing strategy across all products and lead its execution.
• Manage and scale the marketing team (UA, SEO, Affiliate, PPC, Design, MarTech).
• Build and optimize marketing funnels for subscription-based B2C apps.
• Drive and monitor key metrics and performance KPIs.
• Oversee marketing experiments, scaling what works and cutting what doesn’t.
• Work closely with product and analytics teams to ensure data-driven decisions.
• Handle challenges in high risk domains — avoiding bans, managing ad compliance, testing bold creatives.
   

Must-Have Experience

• 5+ years in digital marketing, including at least 2+ years in team management.
• Proven experience in User Acquisition (Facebook Ads – mandatory).
• Experience with subscription products.
• Experience in high risk niches (dating, adult, or high-risk verticals).
• Knowledge of app marketing and store advertising policies (App Store / Google Play).
• Strong understanding of marketing analytics (ROMI, LTV, CAC, retention metrics).
• Track record of scaling marketing budgets while maintaining ROI.
• Hands-on approach — ability to test, analyze, and make quick data-driven decisions.

What We Offer

• Direct impact: you’ll lead the entire marketing strategy for multiple AI and social products.
• Fast career track — this role is designed as a stepping stone to the top.
• Work with a driven, data-focused team building next-generation AI products.
• Dynamic environment — we move fast, test fearlessly, and reward initiative.

Benefits:

• Services of a corporate doctor, and after the probationary period - health insurance in Ukraine;
• 20 working days of paid vacation per year, unlimited sick leave;
• All equipment necessary for work;
• Access to top-tier courses, corporate online meetups, lectures, a comprehensive library, and 11 professional internal communities for career development;

We’re looking for a Technical (Python) Support Engineer to keep our production applications stable and fast during weekend shifts. You’ll handle incident triage, bug fixes, and small improvements while collaborating with the core team when escalation is needed.

Shift on Saturday & Sunday options (choose one):

• 06:00–12:00
• 12:00–18:00
• 18:00–00:00
   

What you’ll do

• Maintain and troubleshoot Python/Django web applications
• Debug and optimize database performance (PostgreSQL)
• Operate core AWS services (EC2, S3)
• Diagnose issues with cross-functional teams and implement quick fixes
• Keep code changes clean, documented, and secure
• Handle end-user requests and provide technical assistance

What we’re looking for:

• English: Upper-Intermediate or higher
• Experience: 6+ months with Python & Django OR no commercial experience but:
  • Completed relevant courses/bootcamps (Python, Django, Databases, AWS)
  • Strong fundamentals (data types, HTTP/REST, Git, basic Linux, debugging)
  • Hands-on projects (pet projects, labs, internships) — GitHub links welcome
• Solid knowledge of PostgreSQL (or another relational DB)
• Basic familiarity with AWS (EC2, S3)
• Strong analytical and debugging skills
• Basic understanding of REST APIs and front-end basics (HTML, CSS, JavaScript)
• Clear communicator; comfortable working independently and in a team

Nice to have

• Docker, Kubernetes, and CI/CD pipelines
• Web application security best practices
• Experience in an Agile environment
   

What we offer

• Paid part-time weekend shifts
• Flexible choice of shift blocks
• Supportive team and transparent processes
• Fast track to real production experience

We’re looking for an experienced Full Stack Developer with a strong background in React, TypeScript, and Node.js (Express or NestJS) to join our engineering team for an active client project.

The ideal candidate feels confident working across the full stack — from developing clean, responsive UIs to building secure, scalable backend APIs. You’ll collaborate closely with frontend, backend, and DevOps teams to deliver production-ready solutions and contribute to architecture decisions.

Responsibilities

• Build and maintain modern, responsive interfaces with React and TypeScript
• Develop robust Node.js (Express/NestJS) services and REST APIs with proper validation, authentication, and rate-limiting
• Work with XML data pipelines and implement XSD schema validation
• Integrate external services like AWS S3, Stripe, Twilio, and Nodemailer
• Manage databases using MongoDB, Mongoose, and Prisma ORM
• Ensure code quality through testing, code reviews, and adherence to best practices
• Support CI/CD pipelines and contribute to system performance monitoring (New Relic, Winston)
• Handle secure file uploads (Multer, AWS SDK) and dynamic document generation (pdfkit, puppeteer, marked)

Requirements

• 4+ years of experience in frontend development (React, TypeScript)
• 4+ years in backend development (Node.js, Express or NestJS)
• Solid understanding of REST APIs, JSON/XML, and full-stack integrations
• Hands-on experience with XML/XSD validation
• Experience working with Git/GitHub, Docker, and CI/CD environments
• Strong problem-solving skills and attention to clean, maintainable code

Nice to Have

• Experience with form-driven applications, dashboards, or workflow-heavy UIs
• Familiarity with Redis for caching or real-time features
• Knowledge of microservices architecture
• Awareness of accessibility (WCAG), responsive design, and web performance optimization