Jobs at Djinni

You are energetic, love technology and growth and have the following skills:

* Great people management skills

* Great documentation and process building skills

* Quality & Efficiency driven

* Understanding of project management principles in IT / software development (Scrum, Waterfall, Kanban)

* You are not afraid of IT projects documentation and Business Analytics. Gantt Charts, UML, Balsamiq Mockups, Mindmaps and similar are your friends

* Experience with JIRA, wiki-based documentation and other relevant tools

* Fluent written and verbal English 

We’re looking for a Full-Stack JavaScript/TypeScript Engineer (Node.js + React/AntD) to join a cross-functional team. You’ll ship features end-to-end: design APIs and integrations, build clean UIs, and ensure performance and reliability. We value pragmatic thinking, clean code, and the ability to drive tasks to release.

Expertise Required

• Strong proficiency in TypeScript and JavaScript
• Ability to navigate and discern when to use different popular Node.js frameworks
• Experience in backend development using Node.js
• Knowledge and application of REST API principles
• Experience with relational and non-relational databases
• Experience with popular frontend libraries such as ANTD
• Experience integrating with various third-party systems
• Understanding of Git (beyond basic commits and the concept of a main branch)
• Basic knowledge of web security

What You Will Do

• Write clean, maintainable, and efficient code following SOLID/DRY and team standards.
•  Integrate with external services and APIs with proper auth, retries, timeouts, and error handling.
• Design and maintain databases (schemas, indexes, migrations) and optimize queries.
• Diagnose, reproduce, and fix bugs.
• Create and maintain documentation.
• Participate in code reviews and architectural discussions; propose improvements.
• Join team ceremonies and planning.
• Ensure data security and mitigate vulnerabilities.
• Optimize server and application performance.

Will Be a Plus

• Experience with AWS (S3, Lambda, Step Functions, SQS, CloudWatch) or similar services from other cloud providers
• Proficiency in Docker (writing simple Dockerfiles, logs)
• Working with Serverless architecture

Benefits

• Work in a fast-paced, dynamic, and innovative business environment.
• Opportunity to directly influence the company’s strategic IT architecture and products that scale globally.
• Access to modern tools, technologies, and in-house expertise.
• Flexible approach to project delivery and freedom to choose optimal technical solutions.
• Performance-based bonus system for department heads, tied to team results.
• Energy support benefit for employees in Ukraine — USD 100/month after the probation period (power banks, charging stations, generators, inverters, etc.).
• Opportunity to visit the Warsaw office if you are nearby.

Key Responsibilities

• Develop and execute marketing strategies for international B2B and B2C clients.
• Design, optimize, and manage full-funnel marketing systems.
• Manage and analyze paid media campaigns (Google Ads, Meta Ads).
• Prepare technical briefs for SEO, email marketing, content, and PR initiatives.
• Conduct market, competitor, and customer research.

• Prepare analytical reports and client presentations.

   

Required Qualifications

• 2+ years of experience in marketing (agency or in-house; B2B/B2C).
• Proven experience with paid acquisition channels (Google Ads, Meta Ads).
• Strong analytical skills; hands-on experience with GA4, SimilarWeb or equivalent tools.
• Understanding of conversion funnels and performance optimization.
• Ability to manage multiple projects simultaneously.

• Structured thinking and strong communication skills.

   

Nice to Have

• Experience in international markets.
• Basic knowledge of SEO and email automation systems.
• Experience collaborating with designers, developers, and content teams.

We're hiring Low-Level Engineers to design and build RL environments that teach LLMs kernel development, hardware optimization, and systems programming. The goal is to create realistic feedback loops where models learn to write high-performance code across GPU and CPU architectures.

This is a remote contractor role with ≥4 hours overlap to PST and advanced English (C1/C2) required.

Requirements

Minimal Qualifications

• Strong Python (engineering-quality, not notebook-only)
• Production mindset (debugging, reliability, iteration speed)
• Clear understanding of LLMs, their current limitations
• Ability to meet throughput expectations and respond quickly to feedback

You may be a good fit if one of the following applies

• Deep understanding of memory hierarchies (registers, L1/L2/shared memory, HBM, system RAM) and their performance implications
• Threading models, synchronization primitives, and concurrent programming (warps, thread blocks, barriers, atomics)
• Cache coherence, memory access patterns, coalescing, and bank conflicts
• JIT compilation frameworks (e.g., Triton, JAX/XLA, TorchInductor, Numba)
• AOT compilation and optimization passes (LLVM, MLIR, TVM)
• Compiler and kernel frameworks such as CUTLASS, BitBLAS, or JAX/Pallas
• Modern C++, including templates, concurrency, and build systems
• Assembly-level programming and low-level optimization across GPU and CPU architectures (e.g., x86, ARM, NVIDIA Hopper, NVIDIA Blackwell)
• Debugging and optimizing GPU kernels using CUDA and/or HIP/ROCm
• Developing PyTorch custom operators, backend extensions, or dispatcher integrations (e.g., ATen, TorchScript, or custom backends)
• Customizing, extending, or optimizing c, including distributed inference workflows
• GPU communication libraries and collectives, such as NVIDIA NCCL, AMD RCCL, MPI, or UCX
• Mixed-precision and low-precision kernels (e.g., FP16, BF16, FP8, INT8), including numerical stability and performance trade-offs

We’re hiring RL Environments Engineers to design and build MLE/SWE environments that deliver high-quality, diverse tasks with minimal supervision. You will target a specific language model, meet a defined difficulty distribution, and deliver about one task every 10 hours. This is a remote contractor role with ≥4 hours overlap to PST and advanced English (C1/C2) required.

Responsibilities

• Design and build MLE/SWE environments and diverse tasks.
• Target a specified language model and satisfy the required difficulty distribution.
• Deliver ~1 task per 8-10 hours once onboarded.
• Edit tasks within 24 hours based on customer feedback.
• Onboard quickly and start delivering on day one with minimal supervision.
  
   

Requirements

What we’re looking for (must-haves)

• Strong Python (engineering-quality, not notebook-only).
• Hands-on LLM/GenAI work in production: you’ve shipped and operated real systems (not “wrapped an API and called it AI”).
• Strong product/engineering ownership: comfortable building, fixing, and scaling end-to-end pipelines.
• Docker + production mindset (debugging, reliability, iteration speed).
• ≥4 hours PST overlap and advanced English (C1/C2) for specs, reviews, and feedback.
• Ability to meet throughput expectations and respond quickly to feedback.
   

Strong signals (nice-to-have, big plus)

• Experience designing environments/tasks for RL and/or evaluations.
• Experience in high-stakes or regulated domains (e.g., healthcare, finance, fraud/risk, safety-critical systems).
• ML systems experience: CI/CD, monitoring, evaluation harnesses, MLOps, scalable pipelines.
• Systems depth: C++/Rust/Scala/Java, performance/infra optimization, distributed systems.
• Exposure to RL / bandits / agentic systems (not required, but a strong signal).
   

Not a fit if

• You’re primarily a prompt engineer without strong ML/engineering foundations.
• You’re a research-only / academic-only profile with little or no shipping/production ownership.
• You’ve only built in notebooks or rely heavily on managed AutoML tools.
  
   

Working Conditions

• Remote, independent contractor engagement.
   
• 40 hours/week - full time - need 4 hours overlap in the working hours with the team in Pacific time zone;
• Deliverables-driven; begin shipping on day one.

Conversion & relocation: Potential path to FTE and relocation to the Bay Area if performance and mutual fit align.
 

We are looking for an experienced Lead Growth Manager (Web Funnels) to join our Growth Team and own the revenue performance of a funnel cluster within the Business Unit.
In this role, you will define and drive the Growth strategy within your ownership area, ensuring measurable revenue impact, sustainable improvement of unit economics, and experimentation maturity within your funnel cluster.
You will operate in a complex multi-product environment with multiple active funnels, different monetization logics, and varied traffic sources, requiring strong prioritization and strategic focus.
This is both a hands-on and leadership role: you will personally initiate and run experiments while also leading the Growth direction, coordinating the team, and driving revenue-focused decision-making.

Responsibilities:

• Own the revenue performance of your funnel cluster from first screen to payment, with accountability for conversion, ARPU, LTV, and overall financial contribution to the Business Unit
• Define and execute the Growth strategy for your funnel cluster, identifying and prioritizing the highest revenue-impact opportunities
• Define and prioritize key growth directions and ensure high-quality hypothesis generation aligned with strategic revenue goals (CR, ARPU, LTV)
• Ensure a scalable and predictable experimentation framework with consistent measurable output, personally leading high-impact initiatives while delegating execution where appropriate
• Define and evolve monetization strategy (paywall, pricing, trial, upsells) to drive sustainable ARPU and LTV growth while improving conversion performance
• Make final data-driven scaling decisions based on unit economics, financial impact, and Business Unit priorities
• Influence Business Unit roadmap and prioritization through strong revenue-driven argumentation and financial impact modeling
• Lead and develop Growth specialists within your ownership area, distribute responsibilities, ensure execution quality, and foster a high-performing Growth sub-team
• Enhance perceived product value within the funnel via offer positioning, messaging, UX testing, and segmentation strategies
• Build and continuously improve a repeatable and scalable Growth framework within your ownership area
• Increase experimentation maturity and win-rate over time
• Reduce time-to-test structurally
• Ensure predictability and transparency of Growth impact.

What we look for:

• 1+ year of experience in a Growth Lead or similar role - experience leading a Growth direction, managing a small Growth team, or owning a revenue-critical funnel area
• 3+ years of experience in Growth / CRO / Monetization Manager in B2C digital products
• Proven hands-on experience working with end-to-end WEB funnels (LP → signup → trial → payment)
• Strong experience in subscription-based B2C digital businesses
• Practical experience launching and analyzing A/B tests (hypothesis formulation, test design, analysis, decision-making)
• Deep understanding of monetization mechanics (paywall, pricing, trial models, offers, upsells)
• Deep understanding of unit economics (ARPU, LTV, CAC, contribution margin) and ability to connect funnel decisions with financial outcomes
• Experience influencing prioritization through revenue and data-driven reasoning
• Strong analytical skills and confident use of analytics tools (Amplitude, Tableau, or similar web analytics platforms)
• Experience prioritizing hypotheses using impact × effort × revenue potential frameworks
• Upper-Intermediate (B2+) level of English.

We offer:

• Exciting challenges and growth prospects together with an international company
• High decision-making speed and diverse projects
• Ultimate ownership of product business metrics
• Flexibility in approaches, no processes for the sake of processes
• Effective and friendly communication at any level
• Highly competitive compensation package that recognizes your expertise and experience level, Performance Review practice to exchange feedback and discuss terms of cooperation
• Flexible schedule, opportunity to work in a stylish and comfortable office or remotely
• Respect for work-life balance (holidays, sick days - of course)
• Bright corporate events and gifts for employees
• Additional medical insurance
• Compensation for specialized training and conference attendance
• Restaurant lunches at the company's expense for those working in the office, endless supplies of delicious food all year round.

Our Mission and Vision

At Solidgate, our mission is clear: to empower outstanding entrepreneurs to build exceptional internet companies. We exist to fuel the builders — the ones shaping the digital economy — with the financial infrastructure they deserve. To achieve that, we’re on a bold path: to become the #1 payments orchestration platform in the world.

We believe the future of payments is shaped by people who think big, take ownership, and bring curiosity and drive to everything they do. That’s exactly the kind of teammates we want on board.

About the Team and Role

As a Junior Operational Analytics Specialist, you’ll work on Chargebackhit — technology that protects online businesses from fraud and chargebacks. The product is mature but runs with the energy of a startup: things evolve fast and decisions are made quickly.

This role puts you at the heart of product operations — connecting services, monitoring performance, and working with data that protects merchants in real time. It’s an ideal opportunity to kick-start your analytics career in fintech.
 

What you’ll own

— connecting, testing, and monitoring the operation of chargeback prevention services
— working with the database
— active interaction with other teams: Analytics, Sales, and Account Management
— processing analytical requests from our clients
 

You’re a great fit if you have

— Bachelor’s or Master’s degree (completed or in progress) in analytics, programming, mathematics, or a related field
— Strong command of SQL and Excel
— Analytical thinking and problem-solving mindset
— Clear, structured communication skills
— English level Upper-Intermediate (B2) or higher
 

Why Solidgate?

— No internships here — we build careers. Get hands-on from day one and make a real impact.
— Your work = real outcomes. Shape how global companies move money.
— Grow like crazy. Learn from top fintech pros and level up faster than anywhere else.
— Flex your schedule. Balance studies and work with flexible hours that fit your life.
— Enjoy the ride. A wow office in Kyiv center, daily lunches, snacks, team buildings, and a learning budget to keep you growing.
 

💌 The Extras: 30+ days off, unlimited sick leave, free office meals, health coverage, and Apple gear to keep you productive. Courses, conferences, sports and wellness benefits — all designed for ideas, focus, and fun.

Tomorrow’s fintech needs your mindset. Come build it with us.

Senior Flutter Developer (Mobile)

We are looking for a very senior Flutter developer to join a licensed European fintech company on a long-term contract.

Requirements:
- 5+ years of hands-on Flutter development
- Strong experience building production mobile apps (iOS and Android)
- Dart, Bloc/Provider state management
- Clean Architecture, MVVM, SOLID
- REST API integrations
- Firebase (analytics, crashlytics, push notifications)
- CI/CD for mobile (Fastlane, GitHub Actions, or similar)
- Experience with payment SDKs, fintech, or regulated industries is a strong plus
- English B2+

Nice to have:
- Experience with money transfer or remittance apps
- Multi-currency / localization implementation
- Amplitude or similar analytics tools
- App Store and Google Play release management

Details:
- Full-time, fully remote
- Long-term engagement
- Timezone: GMT+1 or east (Europe, Middle East, Central Asia)
 

To apply, please share:
- Your CV
- GitHub 
- LinkedIn profile

Due to our expansion, we are looking for a specialist to ensure high-quality onboarding and support for our partners.
 

About Us:
 

OnlyTraffic is an international ecosystem for content creators that has been operating on the market for nearly 3 years. Our main focus is traffic acquisition for OnlyFans creators and agencies (RevShare/CPL/CPC), as well as analytics and the development of technological tools. We have a solid reputation in affiliate marketing and collaborate with leading global agencies and top-tier traffic contractors.
 

We Offer:
 

• Salary: Starting from $1,200/month (base + bonuses).
• Career Growth: Opportunities to advance to Growth Manager, Account Manager, or Team Lead.
• Scale: Work with international markets.
• Development: Internal training and team support.
   

Responsibilities:
 

• Processing inbound collaboration requests from clients and marketing partners.
• Conducting onboarding for partners and assisting with technical platform questions.
• Providing ongoing support and assistance to the current base of clients and partners.
• Maintaining high standards of communication.
   

Requirements:
 

• Experience in marketing.
• English level B2 or higher.
• Experience with Western markets (understanding of American business culture; familiarity with tools like Slack, Salesforce, Discord, Notion, Xero).
• Will be a plus: Courses in affiliate marketing, support experience in a Western company, or experience in the OnlyFans niche.

About UN1Q

UN1Q is a pre-launch startup developing an innovative fitness and nutrition coaching app. Our goal is to use cutting-edge, science-backed technology to provide real-time feedback and individualised fitness experiences for users.

As we prepare to launch and maintain the application, we are looking for an experienced engineer to play a key role in this process and contribute to a growing, fast-paced company environment.
 

Role Overview
 

We are looking for a Full Stack Engineer to work across backend, frontend, and web systems powering the UN1Q mobile application and website.

You will work heavily with Laravel, GraphQL, and complex business logic across both frontend and backend layers. The role also includes ownership of our website and future web applications, primarily built with WordPress and TypeScript-based frameworks, as well as an internal dashboard.

You will collaborate closely with product, mobile, and DevOps teams and play an important role in shaping the technical foundation of our wellness app and platform.

Key Responsibilities
 

• Design, develop, and maintain features across the full stack of our mobile-first platform.
• Build and maintain backend services using PHP 8+ and Laravel, implementing clean and scalable business logic.
• Develop frontend components in modern JavaScript/TypeScriptand ensure smooth integration with backend services.
• Ensure consistency and performance of complex logic across both frontend and backend layers.
• Own and maintain the UN1Q website and related web applications, together with other teams.
• Develop, edit and maintain WordPress themes and plugins with a focus on performance and security.
• Integrate and manage e-commerce functionality, including Stripe, WooCommerce, and subscription/payment workflows.
• Optimize performance across APIs, databases, frontend applications, and website infrastructure.
• Follow clean coding standards, testing practices, and maintain CI/CD processes.
   

Requirements
 

• 5+ years of experience as a Full Stack Engineer in production environments.
• Strong experience with PHP 8+ and Laravel.
• Significant frontend experience with JavaScript/TypeScript (React, Vue, or similar).
• Experience integrating backend systems with mobile applications.
• Experience developing and maintaining WordPress websites, including plugin and theme customization.
• Experience integrating e-commerce systems.
• Solid understanding of database design and performance optimization.
• Ability to work independently, communicate clearly in English, and collaborate in cross-functional teams.

• The following will be considered an advantage:
   
  • Vast experience with standards and best practices in the PHP and Laravel ecosystems.
  • Experience with modular frameworks and applications.
  • Experience developing tailored frameworks.
  • Experience working within an Agile framework.
  • Interest in or experience with athletics and/or medicine.
  • Experience with technologies and systems such as
    • Composer
    • Docker
    • GitHub
    • Postman
    • Atlassian
    • JetBrains
    • Linux
    • Slack
  • Significant working hours overlap with the GMT+1 timezone.
  • Ability to write and follow clear and concise documentation.

Why join us?

The chance to be part of a mission-driven team focused on revolutionizing the fitness, health and wellness space. Here are some of the things that set us apart from many other companies:

1. We work with and pioneer cutting-edge technology, both hardware and software.
2. We develop, extend, or integrate many tools to create robust internal automations and optimisations.
3. We work within a predictable, well-defined framework of expectations and processes.
4. We practice a culture of ownership, allowing for significant flexibility within our frameworks.
5. We work with bright, talented people who offer valuable learning opportunities.
6. We pursue excellence in every aspect of our work.

We are a performance marketing agency specializing in high-volume user acquisition across Meta Ads, Telegram Ads, and Google Ads, with deep experience operating in the iGaming industry

Our team currently manages over €50,000/month in ad spend, running funnels on telegram. We have a lot of data generated every month that we could use.

We want to launch a full email marketing system from scratch both for internal projects and for long-term funnel optimization. For this, we are looking for a highly experienced Email Marketing Specialist who can build the entire infrastructure and strategy with us

Rock&Apps is looking for a reliable and proactive PHP Developer who enjoys building scalable backend solutions and taking ownership of their work 🚀

In this role, you’ll work on real product features, design and improve APIs, and collaborate closely with frontend developers, QA, and managers to deliver high-quality solutions.

We value responsibility, thoughtful engineering decisions, and a strong team mindset.

What you’ll do

- Develop and maintain the backend of web applications using PHP and Symfony 

- Implement new features and improve existing functionality 

- Design, develop, and maintain REST APIs 

- Work with databases (MySQL/PostgreSQL), write and optimize queries, and use Doctrine ORM 

- Participate in code reviews, refactoring, and overall code quality improvements 

- Write unit and/or functional tests 

- Integrate external services and systems (APIs, queues, third-party services) 

- Collaborate with frontend developers, QA engineers, and managers 

- Take part in task planning and effort estimation

What we’re looking for

- 1.5–3 years of experience with PHP development (PHP 8) 

- Hands-on experience with Symfony (preferably Symfony 6/7/8) 

- Understanding of OOP principles, SOLID, and MVC 

- Practical experience with Doctrine ORM 

- Confident knowledge of SQL and experience with MySQL or PostgreSQL 

- Experience designing and developing REST APIs 

- Experience working with Git 

- Basic understanding of HTTP, REST, and JSON 

- Basic experience working with Linux 

- Ability to read, understand, and work with existing codebases 

- Responsibility, independence, and the ability to work effectively in a team 

- Strong motivation to grow and learn new technologies

Extra points if you have

- Experience with Docker, CI/CD, and containerized environments 

- Experience with queues and async processing (RabbitMQ, Redis) 

- Experience writing automated tests (PHPUnit, Pest) 

- Experience with Redis and API Platform 

- Understanding of DDD and Clean Architecture 

- Experience working with high-load or scalable systems

What we offer

- A fast-growing environment with minimal bureaucracy 

- Support for professional development 

- 15 paid vacation days 

- 15 paid sick days 

- 5 paid days off 

- Benefit bar

Rock&Apps is looking for a detail-oriented and motivated Junior Frontend Developer who cares about clean UI, performance, and real business impact 💻✨ 

This role is a great fit for someone who wants to strengthen their frontend fundamentals, work on real production tasks, and clearly see how their work affects users and revenue. 

You’ll collaborate closely with designers and the team to turn layouts into fast, responsive, and reliable interfaces. We value responsibility, clear communication, and the ability to move quickly without sacrificing quality.

What you’ll do

- Build and maintain marketing landing pages 

- Develop and improve the UI of our internal admin system 

- Work closely with designers to implement UI accurately 

- Optimize pages for performance, loading speed, and usability 

- Debug and improve existing layouts and frontend logic

What we’re looking for

- Strong knowledge of HTML and CSS, including responsive mobile-first layout, cross-browser compatibility, and working with Flexbox and CSS Grid 

- Solid understanding of JavaScript (ES6+), including vanilla JS, DOM manipulation, events, async/await, fetch, and basic API interaction 

- Experience with styling using SCSS and a CSS methodology such as BEM 

- Experience working with Git: branches, commits, and resolving merge conflicts 

- Basic understanding of modern build tools such as Webpack or Vite 

- Understanding of frontend performance and optimization techniques, including lazy loading, image optimization (WebP), and page load speed 

- Ability to work fast, decompose tasks, and confidently debug issues using browser DevTools (Elements, Console, Network) 

- Clear communication skills and the ability to explain technical details to designers and non-technical stakeholders 

- High level of responsibility

Extra points if you have

- Experience with React

What we offer

- A fast-growing environment with minimal bureaucracy 

- Support for professional development 

- 15 paid vacation days 

- 15 paid sick days 

- 5 paid days off 

- Benefit bar

We are looking for a Product Manager with deep expertise in a specific industry who can help design and shape new digital products.

Our focus is not just on execution, but on product thinking - understanding how an industry works, identifying its real problems, and creating product solutions around them.

We believe that while execution will increasingly be automated, product expertise and industry insight cannot be automated.
That’s why we are looking for a Product Manager who deeply understands one domain and can transform that knowledge into product ideas and strategies.

About Kozak Group

We are a software development company with 10+ years on the market working with clients across Europe and the United States.

Our core expertise is e-commerce development, particularly with Magento, and we are expanding into Shopify and other modern commerce solutions.

Today most of our work is service-based development, but we are actively moving toward building our own products and scalable product solutions.

We want to build:

• internal products
• SaaS solutions
• extensions and tools for existing client ecosystems
• AI-powered solutions for business automation

To support this direction, we are looking for a Product Manager with strong industry insight and product thinking.

Requirements

• 4+ years of experience as a Product Manager / Product Owner in digital products.
• Proven experience working with e-commerce, SaaS, retail, manufacturing/distribution, AI products or LegalTech.
• Strong experience in product discovery, market analysis, and problem identification.
• Ability to define product vision, MVP scope, and product strategy.
• Experience translating product ideas into clear requirements and specifications for development teams.
• Strong understanding of user needs, market dynamics, and product-market fit.
• Experience working with cross-functional teams (engineering, design, business stakeholders).
• Strong analytical and structured thinking.
• Upper-intermediate English or higher.

We are specifically looking for candidates with experience in these industries

Preferred domains

• E-commerce (main focus)
• Retail
• SaaS platforms
• Manufacturing & distribution
• AI-driven products
• LegalTech
• Customer development / service platforms

We value candidates who have worked deeply in one industry and understand its internal mechanics, challenges and opportunities.

Industries we are NOT considering

We are not looking for candidates whose main experience is in:

• Crypto / Web3 / Blockchain
• GameDev
• Government / public sector

These industries have very different product development dynamics and are not aligned with our current focus.

Required experience

• 4+ years as Product Manager / Product Owner
• Experience working with digital products
• Strong product discovery and problem identification skills
• Ability to translate industry problems into product opportunities
• Experience collaborating with engineering teams

What we value most

We value depth of thinking and industry expertise.

We are looking for someone who:

• understands how their industry works
• knows its business models and market dynamics
• can identify real problems worth solving
• can turn those problems into product ideas

Why join us

You will have the opportunity to:

• help shape new products from idea to launch
• work on SaaS and AI-driven solutions
• collaborate with experienced engineering teams
• influence the product direction of the company