Jobs at Djinni

Product Marketing Manager (iOS Apps, Subscription Model)
📍 Warsaw (Hybrid format) | Full-time
Client: App Development Company (B2C, Utilities Apps)

We’re hiring a Product Marketing Manager for one of our clients — a fast-growing and innovative product company in the mobile app space. The team specializes in creating high-quality utilities apps for iOS, built on a subscription-based business model.

They’re looking for a data-driven, hands-on marketer who will take a lead role in scaling their B2C products. You’ll work closely with developers, designers, and media buying teams to identify growth opportunities, optimize funnels, and drive user acquisition and retention.

🚀 Key Responsibilities:

• Conduct market, competitor, and user research to identify growth opportunities and new promotion strategies
• Generate, prioritize, and execute A/B tests to improve marketing efficiency and increase user LTV
• Collaborate with the media buying team to optimize ad campaigns
• Work with product and design teams on onboarding flows, paywalls, and other in-app elements to boost conversions
• Monitor and analyze key in-app metrics and user behavior
• Align acquisition and monetization strategies for consistent product growth

✅ Requirements:

• Hands-on experience with A/B testing and product experiments
• Experience working with subscription-based apps (ideally on iOS)
• Strong knowledge of affiliate marketing, media buying, and performance marketing
• Proficiency in funnel analysis, cohort analysis, and key metrics (LTV, CPS, ARPPU)
• English level: B1 or higher
• Ability to perform market research and spot new niche opportunities

Bonus: Experience working with utility apps

💼 What’s Offered:

• Hybrid work format from Warsaw office
• Flexibility for career, professional, and financial growth
• Flat structure with minimal bureaucracy
• Friendly, no-nonsense team culture
• A chance to gain valuable experience in a fast-scaling business with skilled professionals

We are looking for a mid-to-senior Data Scientist who is eager to proactively identify opportunities to improve and automate our business using data science and machine learning. You will work within a small, dedicated team of data scientists collaborating closely with backend engineers, other departments, and end users, while being part of a larger ecosystem of trading and technology experts.

In this role, you will design, develop, and optimize predictive models, implement anomaly detection systems, and participate in building production-grade machine learning solutions that directly impact trading and operational processes. You’ll also get hands-on experience with (or apply your existing knowledge of) high-performance architectures, including Kafka, serverless functions, databases, CI/CD pipelines, Kubernetes, and Docker.

Key Responsibilities:

• Develop and refine mathematical and statistical models for predicting sports and e-sports outcomes.
• Communicate with end users, collect feedback, and build technical solutions based on it.
• Apply machine learning to improve trading strategies, automate workflows, and detect anomalies.
• Proactively identify opportunities to use data science for business optimization and process automation.
• Perform large-scale historical data analysis to generate insights and improve model performance.
• Collaborate with backend engineers to build and maintain production machine learning systems.
• Research and prototype new methods for expanding into new sports and markets.

KPIs for This Role:

• Delivery of production-ready machine learning models and pipelines for trading within agreed timelines.
• Improvement in model accuracy and reliability, measured against established benchmarks.
• Reduction of manual intervention in trading workflows through automation initiatives.
•  

Requirements:

• 3+ years of experience in data science, analytics, or a related field.
• Proficiency in Python (pandas, numpy, scikit-learn, etc.) and working with databases.
• Strong knowledge of statistical modeling, probability, and machine learning techniques (Supervised Learning, Unsupervised Learning).
• Experience with XGBoost/LightGBM.
• Experience with large-scale data analysis and building actionable insights.
• Ability to work collaboratively in a cross-functional team and communicate results clearly.

Nice-to-Have:

• Experience in the sports or betting industry.
• Experience with PyTorch/Tensorflow.
• Familiarity with real-time data processing (Kafka, streaming systems).
• Exposure to building data pipelines and integrating ML models into production systems.
• Knowledge of advanced ML techniques (e.g., ensemble methods, time-series forecasting, anomaly detection).

What We Offer:

• Work on high-impact projects in the fast-growing sports and e-sports betting industry.
• A collaborative environment within a skilled team of data scientists and engineers.
• Flexibility: Hybrid work with remote options.
• Opportunities to shape our analytics and machine learning ecosystem and see your ideas implemented in production.

❗Responsibilities❗

• build strong long-term relationships with existing customers/partners;
• maintain relationships with customers and partners to meet all the business needs;
• provide timely, professional support via online conference calls, email, or other channels;
• provide regular updates, daily plans, and requested reports to the CEO;
• manage and keep track of all the legal, financial, and other agreements with ElifTech’s clients;
• upsell new services to the existing ElifTech clients and cross-sell complementary services;
• develop and execute account management strategies for ElifTech’s accounts;
• provide support in identifying and implementing account management practices.

❗Requirements❗

• 2 years of experience in IT outsourcing on AM position. MUSTHAVE This experience will help you to understand either our business and our client’s much better, and find a common language with both: your client and your future team.
• English: Upper-Intermediate (both spoken and written): You need to understand English-speaking clients from Europe and USA;
• Solution provider mindset: our clients are not always right, but it is a good chance for us to show them we will help them and their business to grow with our expertise, custom approach, and proactivity;We care about our client’s product as it is our own and  we are interested in finding what will work specifically for our client’s product;
• Empathic. Having the ability to create a friendly atmosphere / positive vibes with a customer. You have to catch the wave with a person whether it is talking about their dog's newborn or an upcoming bachelor party on a weekend. Small talk is gold :)
• Multitasking: being able to dive deep into a client's business, and website development and manage several projects at the same time;
• Problem-solving skill: we face with different hard issues and KNOW HOW to find the way out of the most unexpected situations. If you have the same background - it is definitely a match.
• Out-of-the-box thinking: you have to be able to see opportunities with clients where others wouldn't see them, make unobvious decisions, and be a ninja at troubleshooting
• Stress Resilience: you are not afraid to face challenges even if it is a client's bad mood. Shit happens, but our team stays calm and professional;
• Employee-centricity: for sure, our clients are important and they help our business to grow, but our employees are like lungs without which the company can't breathe. 
• Positive references from previous employees.
• High level of toxicity: this is how our team stands working together in long-term cooperation :))))
• Sense of humor: we are looking for a middle level of account manager with a senior level of humor as it helps us to deal with difficult tasks and improve communication

What you’ll get:

- flat hierarchies and short decision paths, openness to new ideas

- flexible working schedule

- reimbursement for professional certification

- annual paid vacation — 18 working days

- paid sick leave — 10 working days

- English classes

- IT club card — applicable for Lviv region

- sport classes compensation

- comfortable office locations or remote work

We are looking for a skilled Lead Python Developer to join our team.

The ideal candidate should have extensive experience in Python development and a keen interest in advancing the AI field. This role includes contributing to the creation of an agentic platform and delivering AI-powered solutions for clients. A background in Retrieval-Augmented Generation (RAG), LangChain, LangGraph, and similar technologies is essential.

Responsibilities

• Develop AI-focused solutions for the AI Migration Pilot project
• Align technical solutions with business objectives in collaboration with the Solution Architect (SA), Development Lead, and other team members
• Integrate AI technologies into existing systems and platforms
• Perform code reviews to maintain high coding standards and adherence to best practices
• Resolve technical issues while ensuring platform stability and performance
• Keep up-to-date with emerging AI technologies and incorporate relevant innovations into ongoing projects
• Modernize legacy code with AI/Run Codemie capabilities, leveraging LangGraph technologies
• Provide mentorship and guidance to junior developers to support their professional growth
   

Requirements

• Proven background in Python software development
• Knowledge of Retrieval-Augmented Generation (RAG), LangChain, and LangGraph
• Strong analytical mindset
• Excellent communication and team collaboration skills
• Motivation to advance in the AI sector
• Familiarity with coding and prompt engineering methods

• Capability to interpret and modernize legacy code

   

Nice to have

• Proficiency in AI and machine learning frameworks and tools
• Experience in designing and building agentic platforms
• Understanding of agile development methodologies
• Expertise in LLM-based solutions and their use cases in code analysis and modernization

• Project Description:

  Our client is not a usual Swiss bank. It's a leading provider of online financial and trading services in the FinTech industry. The first financial platform it launched in 1996 offered free access to prices for all securities traded on the Swiss stock exchange. Today, it is the largest financial portal in Switzerland.
   
  Since 2012, we have collaborated with the client to build innovative and state-of-the-art digital solutions to help customers meet their investment
  We continuously evolve our solutions to atomic microservices and self-contained systems.
   
  The applications team builds for the risk and control departments of the bank. They aggregate Forex trading information and analysis of this data enables operators to take timely actions: manage client orders and positions, prevent potential losses, and increase company profit.
  
  Our organization: we are working as a Scrum team of 6. Daily you will communicate with our client's stakeholders on Stand Up, status, and other meetings, following best practices of Agile processes. As communication tools we are using: video conferences and messaging (Zoom, Teams), Outlook, JIRA, Confluence, and others.
   
  We offer:
  - Growth opportunities: local trainings, webinars on demand and workshops, compensated conferences and certifications;
  - Competitive compensation with yearly review based on professional growth and performance;
  - Fun and life balance: team and corporate team buildings, hackathons, and different events.
   
  If you are proactive, creative, and ready for new challenges - welcome to our team, will improve the quality of products and processes together!
   

• Responsibilities:

  - Development of new applications
  - Implementation of new features for existing products
  - Developing unit/integration/E2E tests
  - Code review
  - Participation in Scrum events with the client
   

• Mandatory Skills Description:

  - At least 3+ years of proven experience in a Software Developer position
  - Java core, Java 8-11 features
  - OOP/OOD knowledge, design patterns
  - Unit testing frameworks (JUnit, Mockito)
  - Spring framework, IOC
  - RESTfull services
  - SQL knowledge, any RDBMS, Oracle is a plus
  - Distributed version control system
  - CI tools experience
  - To learn\work with ReactJS, Redux, TypeScript, HTML, CSS as it will be a regular task - IS A MUST from the 1st day in the project

We are seeking a Lead Python Software Engineer to join our team. You will be responsible for guiding development efforts and ensuring the delivery of high-quality solutions. This role offers the opportunity to work with cloud platforms and modern development tools. If you have a strong background in python and leadership experience, we encourage you to apply and contribute to our projects.

Responsibilities

• Lead the design and implementation of Python software solutions
• Manage and mentor a team of developers
• Collaborate with cross-functional teams to define project requirements
• Ensure code quality through code reviews and testing
• Oversee version control processes 
• Implement containerization strategies 
• Maintain and optimize relational database interactions
• Apply object-oriented programming principles and design patterns
• Facilitate adherence to software development life cycle and agile methodologies
• Drive continuous improvement in development practices
• Coordinate releases and deployments on cloud platforms
   

Requirements

• Experience in Python software development with 5 or more years of practice
• 1+ years of leadership experience in software projects
• Background in working with cloud platforms such as Azure, AWS, GCP
• Proficiency in version control systems, particularly Git
• Knowledge of Docker and containerization technologies
• Understanding of relational database systems
• Competency in object-oriented programming and design patterns
• Familiarity with software development life cycle and agile methodologies
• Upper-intermediate or higher level of English, both spoken and written

• Project Description:

  Our client is not a usual Swiss bank. It's a leading provider of online financial and trading services in the FinTech industry. The first financial platform it launched in 1996 offered free access to prices for all securities traded on the Swiss stock exchange. Today, it is the largest financial portal in Switzerland.
   
  Since 2012, we have collaborated with the client to build innovative and state-of-the-art digital solutions to help customers meet their investment
  We continuously evolve our solutions to atomic microservices and self-contained systems.
   
  The applications team builds for the risk and control departments of the bank. They aggregate Forex trading information and analysis of this data enables operators to take timely actions: manage client orders and positions, prevent potential losses, and increase company profit.
  
  Our organization: we are working as a Scrum team of 6. Daily you will communicate with our client's stakeholders on Stand Up, status, and other meetings, following best practices of Agile processes. As communication tools we are using: video conferences and messaging (Zoom, Teams), Outlook, JIRA, Confluence, and others.
   
  We offer:
  - Growth opportunities: local trainings, webinars on demand and workshops, compensated conferences and certifications;
  - Competitive compensation with yearly review based on professional growth and performance;
  - Fun and life balance: team and corporate team buildings, hackathons, and different events.
   
  If you are proactive, creative, and ready for new challenges - welcome to our team, will improve the quality of products and processes together!

• Responsibilities:

  - Development of new applications
  - Implementation of new features for existing products
  - Developing unit/integration/E2E tests
  - Code review
  - Participation in Scrum events with the client

• Mandatory Skills Description:

  - At least 3+ years of proven experience in a Software Developer position
  - Java core, Java 8-11 features
  - OOP/OOD knowledge, design patterns
  - Unit testing frameworks (JUnit, Mockito)
  - Spring framework, IOC
  - RESTfull services
  - SQL knowledge, any RDBMS, Oracle is a plus
  - Distributed version control system
  - CI tools experience
  - To learn\work with ReactJS, Redux, TypeScript, HTML, CSS as it will be a regular task - IS A MUST from the 1st day in the project

• Nice-to-Have Skills Description:

  - Education: Bachelor's / Master's degree in computer science or computer engineering
  - Experience in finance/banking business domain
  - ReactJS, Redux, TypeScript, HTML, CSS
  - Docker
  - Unix usage experience
  - Java 17-21

Requirements:

• Strong backend development experience with Python and PostgreSQL (SQL Alchemy + Alembic)
• Proficiency with React and TypeScript for frontend development
• Solid understanding of infrastructure-as-code tools like Terraform
• Experience with Kubernetes and maintaining Helm charts
• Comfortable creating new microservices from scratch, including API design and deployment pipelines
• Ability to work proactively with minimal supervision, owning features end-to-end
• Excellent communication and collaboration skills in distributed teams

Nice-to-Have:

• Familiarity with FastAPI
• Experience with Bazel build system (training can be provided)
• Exposure to CI/CD practices and observability tools

Key Responsibilities:

• Build and deliver full-stack solutions using React, TypeScript, Python, and FastAPI
• Take ownership of features from idea to production (including design, development, testing, deployment, and monitoring)
• Design and implement scalable backend systems using PostgreSQL
• Build new microservices from scratch, including infrastructure configuration using Terraform and Helm
• Maintain and extend Kubernetes Helm charts for service deployment
• Collaborate with team members during weekly syncs to discuss progress, blockers, and demos
• Conduct code reviews, participate in design discussions, and handle ad-hoc support when needed
• Work independently and proactively drive tasks forward, coordinating across time zones

About the Project:

We’re hiring a Full-Stack Software Engineer (Python + React) to join a fast-paced, highly autonomous team. This role is ideal for an engineer who is comfortable working across the stack, passionate about writing clean and scalable code, and capable of driving features end-to-end — from design to infrastructure provisioning to production monitoring.

You will work closely with cross-functional teams to build new features, create microservices from scratch, and manage infrastructure using modern DevOps practices.

Our client

WebPros, the largest web hosting software and automation company, manages 900,000+ servers, 85 million domains, and 33 million users. WebPros unites top providers in web hosting, billing automation, infrastructure, server management, and online marketing software. Currently, their lineup includes cPanel, Plesk, SolusVM, WHMCS, XOVI NOW, Sitejet, 360 Monitoring, and koality, with ongoing additions.

Job Description

Join our global Data&AI team at WebPros, where you will play a crucial role in operationalizing and optimizing Large Language Model (LLM) solutions. As an AI Operations Engineer, you will work closely with cross-functional teams to design prompts, implement safety guardrails, and ensure traceability and monitoring of generative AI systems. Your expertise will help drive innovation and safe deployment of AI technologies across the organization.

Responsibilities

As an AI Operations Engineer, your key responsibilities will include:

· Design, test, and validate prompts using techniques such as zero-shot, few-shot, chain-of-thought, and agentic prompting

· Collaborate with teams to optimize prompts for performance, accuracy, and safety.

· Implement guardrails using input/output validation mechanisms including prompt injection prevention, toxicity filtering, and hallucination detection.

· Setup and configure LLMOps platforms to orchestrate, monitor, safeguard and optimize the use of LLMs within our applications.

· Support AI risk assessments and compliance efforts.

· Work with SDKs (e.g., LangChain) and APIs to integrate LLMs into products and services.

· Explore fine-tuning techniques such as system prompt tuning and retrieval-augmented generation (RAG).

Qualifications

To be successful in this role, candidates should have:

· Strong technical background with proficiency in Python and experience working with LLM APIs and SDKs (e.g. LangChain, Semantic Kernel, Haystack).

· Hands-on experience with prompt engineering and LLM orchestration tools.

· Familiarity with AI guardrailing techniques.

· Experience with monitoring, logging, and traceability in AI systems.

· Ability to work cross-functionally and communicate complex AI concepts clearly.

· Exposure to LLMOps platforms (e.g., Langfuse, LangSmith, PromptLayer).

· Understanding of post-training techniques like RAG or system prompt fine-tuning.

· Knowledge of AI governance and risk management practices.

· English language proficiency (B2/C1 level)

· Experience setting up and working with MCP/A2A is a plus

Social package & benefits:

- Full medical insurance 
- MacBook & accessories
- English lessons

- Accountant assistance

- Minimal bureaucracy, synergy, and formalities, primarily focusing on effective communication

We’re building Integri-x — a modern SaaS platform focused on asset integrity, performance monitoring, and ISO audit readiness for heavy industries like mining, oil & gas, and manufacturing.

We’re a small, experienced team with deep technical knowledge, and we’re now looking for a B2B Marketing Specialist to help us craft our message and build consistent lead generation through both outbound and inbound channels.

What You’ll Do

• Develop and refine product messaging tailored to key decision-makers (e.g., asset managers, reliability engineers)
• Launch and manage outbound campaigns (email, LinkedIn, etc.)
• Create and optimize inbound marketing efforts (PPC, search, landing pages)
• Set up or improve our CRM and lead funnel
• Help create marketing assets: case studies, pitch decks, landing pages, etc.

What We’re Looking For

• Experience marketing B2B SaaS, especially in technical or complex domains
• Understanding of industrial markets (ERP, SAP, ISO, Odoo, etc.) is a big plus
• Strong hands-on skills in PPC, email marketing, and content creation
• Self-starter who can launch MVP campaigns and iterate quickly
• Excellent written and spoken English

We are looking for a Media Buyer Helper (Gambling), who will help manage media buying activity for Media Buyer.

Responsibilities:

· Monitor campaign statistics, optimize the effectiveness of campaigns, and investigate traffic drops;

· Monitor costs and return on investment (ROI).

· Track the market for trends, opportunities, etc., and use that information to make recommendations

· Cooperate with other departments (creative, tech, analytics)

Requirements:

· 6+ months of proven media buying experience or without experience

· Excellent analytical skills

· Target-oriented, driven, and ambitious person

· Excellent interpersonal skills

We offer:

· Friendly working atmosphere

· Interesting projects and challenging tasks

· Opportunities for self-realization, professional and career growth

· 5-day work-week in a friendly work environment

· Flexible working hours

Requirements:
— 1+ year of experience with PHP, MySQL, Git, Composer, basic knowledge of UNIX systems 

— Understanding of one of the PHP frameworks (Laravel, Symfony or other) 

— Basic experience in writing automated tests (PHPUnit) 

— Understanding of SOLID, DRY, KISS principles at a basic level 

— Knowledge of OOP fundamentals and understanding of several simple design patterns 

— Willingness to quickly learn and develop in the direction of highload projects

Responsibilities: 

— Development and maintenance of admin panel functionality and integrations 

— Integration of new modules and services 

— Working with queues, APIs and external services 

— Collaboration with designers, frontend team and webmasters
 

Nice to have 

— Experience with Docker 

— Experience with AI Cursor 

— Experience working with queues (SQS, RabbitMQ, Laravel queue)

Working terms

- possibility of remote work;

- paid vacation — 21 working days;

- annual salary review;

- opportunity for career growth within the company.

Integri-x is a SaaS platform designed for asset-heavy industries like mining, oil & gas, and manufacturing. We help teams monitor asset health, manage performance, and prepare for ISO compliance.

We’re currently growing our go-to-market efforts and are looking for a B2B Sales Specialist with experience in SaaS sales and outbound lead generation.

Responsibilities

• Develop outreach strategies to connect with leads in asset-intensive industries
• Launch cold outreach via LinkedIn, email, and other channels
• Build and qualify a pipeline of leads (MQLs and SQLs)
• Collaborate on messaging, one-pagers, and sales collateral
• Set up and maintain CRM entries and sales funnel stages

Who You Are

• Experienced in B2B SaaS sales (ideally in a technical or industrial domain)
• Skilled in outbound outreach and relationship-building
• Able to write clear, concise, and compelling messages to prospects
• Familiar with tools like LinkedIn Sales Navigator, CRMs, and email automation
• Confident communicator in English

This is a great opportunity for an experienced Golang Developer to join a product team building an Asset Management Platform with billions under management.
We're looking for a skilled backend engineer who’s passionate about performance, scalability, and clean architecture. You’ll work closely with a senior team on high-load, business-critical services that power automated yield generation.

About the project:

We’re developing a next-generation platform for managing digital assets and optimizing returns through advanced automation. The system is designed for performance and precision — and handles real money at scale.

Responsibilities:

• Develop and maintain high-performance services using Golang
• Design and consume REST/gRPC APIs in a microservices environment
• Work with PostgreSQL and Redis for data storage and caching
• Containerize and orchestrate services using Docker
• Participate in architecture decisions and propose scalable technical solutions
• Collaborate with product and engineering teams to deliver new features
• Write clean, maintainable, and well-documented code
   

Requirements:

• 5+ years of software development experience, 3+ years with Golang in production
• Proven ability to analyze and optimize Go code for performance and scalability
• Solid understanding of REST/gRPC APIs, microservices
• Experience with PostgreSQL, Redis, Docker
• Experience applying Clean Architecture principles
• Familiarity with unit testing, integration testing, and CI/CD best practices
• Participation in architectural discussions and scalable solution design
• High availability 
• English level: Upper-Intermediate (B2+) or higher — comfortable working in an international team
   

 Bonus points for:

• Experience with trading automation or asset/portfolio management software
• Understanding of blockchain fundamentals, consensus algorithms, and cryptographic principles

• Background in fintech, high-load systems, or distributed architectures

   

We offer:

• 100% remote work with flexible hours
• Opportunity to work on a high-impact product with real financial value
• Fast decision-making, no bureaucracy
• International team of senior engineers
• Long-term cooperation and growth opportunities

If you're passionate about building solid backend systems and want to be part of a lean, product-driven team — let’s talk!

Job Description

Good knowledge of fundamentals of QA theory (testing techniques, types, artifacts, tools)
Ability to apply that theory to real-world scenarios
Understanding of Agile methodology
Upper-intermediate English (understanding complex texts, communicating with customers)

Nice to have skills:

Basic understanding of API testing (Postman)
Basic SQL knowledge (MS SQL, PostgreSQL)
Technical education
Required skills:

Finished QA Course 

Job Responsibilities

Requirements testing
UI and API testing
Regression and smoke testing
Troubleshooting issues
Participating in team sprint plannings

 

Department/Project Description

Candidate will be responsible for the backend and client apps testing of media applications on the Android and iOS mobile platforms.
This is an opportunity to join a worldwide community of developers that create and deliver fast and innovative media and networked applications for mobile platforms