Jobs at Djinni

Phoenix Games is an innovative technology company building next-generation iGaming and Web3 products for a global audience. We combine technology, AI, blockchain, and digital assets to create scalable products and new business opportunities in the global gaming industry.

We're looking for a Finance Manager / Financial Analyst who can combine strong financial management with analytical thinking and help us make better data-driven business decisions as the company grows.

What You'll Do

• Manage day-to-day financial operations and financial reporting.
• Prepare monthly and quarterly management reports.
• Build and maintain financial models, budgets, forecasts, and cash flow plans.
• Analyze revenue, expenses, profitability, and business performance.
• Monitor budgets and identify deviations, risks, and opportunities.
• Prepare financial forecasts and scenario analyses to support strategic decisions.
• Track key financial and operational KPIs.
• Work with management to evaluate business initiatives and investments.
• Support planning and budgeting processes across departments.
• Analyze financial data and translate it into clear business recommendations.
• Coordinate with accounting, legal, operations, and external financial partners.
• Improve financial processes, reporting, and internal controls.
• Support audits, tax processes, and other finance-related activities when required.

Requirements

• 3+ years of experience in Finance, Financial Analysis, FP&A, or a similar role.
• Strong understanding of financial statements and accounting principles.
• Strong Excel / Google Sheets skills.
• Experience building financial models and forecasts.
• Experience with budgeting, cash flow management, and financial planning.
• Strong analytical and problem-solving skills.
• Ability to work with large datasets and identify meaningful trends.
• Excellent attention to detail and ownership mindset.
• Ability to communicate financial insights clearly to non-financial stakeholders.
• Upper-Intermediate English or higher.

Nice to Have

• Experience in iGaming, Gaming, FinTech, SaaS, or Web3.
• Experience with international companies and multi-currency operations.
• Familiarity with crypto and digital asset transactions.
• Experience with BI and financial reporting tools.
• Knowledge of financial automation and modern accounting platforms.
• Experience in a fast-growing technology or product company.

What We Offer

• Fully remote work from anywhere in Europe.
• Long-term B2B cooperation.
• Competitive compensation in EUR or USD.
• Annual salary reviews.
• Performance-based bonus program.
• Annual company bonus.
• 25 paid vacation days.
• Paid sick leave.
• Flexible working hours.
• Home office allowance.
• Laptop or equipment budget.
• Learning & development budget for courses, certifications, and conferences.
• English language lessons.
• Private health insurance.
• Sports and wellness compensation.
• Team-building activities and international company retreats.
• Opportunity to work in a fast-growing international technology company.
• Direct influence on financial strategy and business decisions.
• Career growth opportunities as the finance function scales.

Why Join Phoenix Games?

This role combines financial management, FP&A, and business analytics, giving you the opportunity to influence both day-to-day financial operations and long-term business strategy.

You'll work closely with leadership and cross-functional teams, turning financial data into actionable insights and helping Phoenix Games scale efficiently and sustainably.

If you're a finance professional who enjoys both numbers and business decision-making, we'd love to hear from you.

Phoenix Games is a technology company building next-generation iGaming and Web3 products for a global audience. We develop scalable gaming platforms powered by modern cloud technologies, blockchain, AI, and high-performance backend systems.

As our products continue to grow, we're looking for a QA Engineer who is passionate about quality, enjoys finding edge cases, and wants to help build reliable, high-performance software used by players worldwide.

What You'll Do

• Develop and execute comprehensive test strategies for web applications and backend services.
• Perform functional, regression, smoke, integration, exploratory, and API testing.
• Create, maintain, and improve test documentation, test cases, and checklists.
• Collaborate closely with Developers, Product Managers, and Designers throughout the development lifecycle.
• Identify, document, and track defects while working with the engineering team to resolve issues.
• Participate in sprint planning, backlog refinement, and release activities.
• Validate new features before production releases.
• Contribute to test automation initiatives and quality improvements.
• Help establish QA processes and best practices across the engineering team.

Tech Stack

• Jira
• TestRail
• Postman
• REST API
• Swagger
• SQL
• Git
• Browser DevTools
• Charles / Fiddler
• Selenium / Playwright / Cypress (nice to have)
• CI/CD

Requirements

• 2+ years of commercial QA experience.
• Strong knowledge of software testing methodologies and SDLC/STLC.
• Experience testing complex web applications.
• Experience with API testing.
• Ability to write clear and structured bug reports.
• Experience working in Agile/Scrum teams.
• Basic SQL knowledge.
• Strong analytical and problem-solving skills.
• Attention to detail and ownership mindset.
• Upper-Intermediate English or higher.

Nice to Have

• Experience with automated testing tools (Playwright, Cypress, Selenium).
• Experience testing high-load systems.
• Familiarity with CI/CD pipelines.
• Knowledge of performance or security testing.
• Experience working with cloud environments.

What We Offer

• Fully remote work from anywhere in Europe.
• Long-term B2B cooperation.
• Competitive salary paid in EUR or USD.
• Annual salary reviews.
• Performance-based bonus program.
• Annual company bonus.
• 25 paid vacation days.
• Paid sick leave.
• Flexible working hours.
• Home office budget.
• Laptop or equipment allowance.
• Learning & development budget for courses, certifications, books, and conferences.
• English language lessons.
• Private health insurance.
• Mental health support program.
• Sports and wellness compensation.
• Team-building activities and international company retreats.
• Opportunity to work with AI, Web3, blockchain, and modern cloud technologies.
• Career growth in an international product company with ambitious expansion plans.

Why Join Phoenix Games?

At Phoenix Games, quality is a core part of our engineering culture. You'll work alongside experienced engineers, influence product quality from the earliest stages of development, and help build innovative gaming products used by a global audience.

If you're passionate about software quality and enjoy working in a collaborative, product-focused environment, we'd love to hear from you.

Phoenix Games is a technology company building next-generation iGaming and Web3 products for a global audience. We develop scalable gaming platforms powered by modern cloud technologies, blockchain, AI, and high-performance backend systems.

As our products continue to grow, we're looking for a Junior+ Backend Developer who is passionate about backend development, enjoys solving complex technical problems, and wants to build reliable, scalable software used by players worldwide.

What You'll Do

• Develop and maintain backend services and APIs for our gaming platforms.
• Work with Go or Python to build scalable and reliable backend solutions.
• Design, implement, and integrate REST APIs and internal services.
• Work with databases and write efficient SQL queries.
• Investigate and troubleshoot bugs, performance issues, and production incidents.
• Write clean, maintainable, and well-tested code.
• Participate in code reviews and contribute to engineering best practices.
• Collaborate closely with QA Engineers, Product Managers, and other Developers throughout the development lifecycle.
• Participate in sprint planning, backlog refinement, and technical discussions.
• Contribute to improving system performance, reliability, and scalability.
• Work with cloud infrastructure and CI/CD pipelines.
• Learn and apply modern technologies related to gaming, Web3, blockchain, and AI.

Tech Stack

• Go / Python
• REST API
• PostgreSQL / SQL
• Git
• Docker
• Linux
• Redis
• Message brokers / asynchronous processing
• Swagger / OpenAPI
• CI/CD
• Cloud technologies
• Monitoring and logging tools

Requirements

• 1+ years of commercial backend development experience.
• Professional experience with either Python or Go.
• Good understanding of backend development principles and software architecture basics.
• Experience building or integrating REST APIs.
• Basic to intermediate SQL knowledge.
• Understanding of relational databases.
• Familiarity with Git and standard development workflows.
• Understanding of HTTP, JSON, and client-server architecture.
• Ability to read and understand existing code and independently investigate issues.
• Basic understanding of testing principles and writing unit tests.
• Experience working in Agile/Scrum teams.
• Strong analytical and problem-solving skills.
• Attention to detail and ownership mindset.
• Upper-Intermediate English or higher.

Nice to Have

• Experience with both Go and Python.
• Experience with PostgreSQL, Redis, or other backend data stores.
• Experience with Docker and containerized applications.
• Familiarity with CI/CD pipelines.
• Experience with AWS, GCP, Azure, or other cloud platforms.
• Understanding of microservices and distributed systems.
• Experience with message brokers such as Kafka or RabbitMQ.
• Familiarity with Kubernetes.
• Experience with high-load or real-time systems.
• Knowledge of performance testing or optimization.
• Interest in Web3, blockchain, AI, or iGaming technologies.

What We Offer

• Fully remote work from anywhere in Europe.
• Long-term B2B cooperation.
• Competitive salary paid in EUR or USD.
• Annual salary reviews.
• Performance-based bonus program.
• Annual company bonus.
• 25 paid vacation days.
• Paid sick leave.
• Flexible working hours.
• Home office budget.
• Laptop or equipment allowance.
• Learning & development budget for courses, certifications, books, and conferences.
• English language lessons.
• Private health insurance.
• Mental health support program.
• Sports and wellness compensation.
• Team-building activities and international company retreats.
• Opportunity to work with AI, Web3, blockchain, and modern cloud technologies.
• Career growth in an international product company with ambitious expansion plans.

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

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

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

Requirements:

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

Responsibilities:

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

Benefits:

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

About Client:

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

Іndustry: Internet Marketplace Platforms

Location: Germany

We are looking for an experienced Computer Vision Algorithms Engineer to own the models at the core of our smart occupancy sensing products. You will design, train, evaluate, optimize and deploy computer vision models for privacy preserving occupancy sensors. The role combines applied research with production engineering on resource constrained edge devices.

About:

You will become a part of a highly professional team working in the field of smart sensors and IoT for the futuristic public smart spaces. Technologies: Python, C++, PyTorch, TensorFlow, OpenCV, NumPy, edge AI inference toolchains and model quantization.

Responsibilities:

• Develop and maintain models for people detection, counting and tracking, combining deep learning with classical computer vision where appropriate;
• Build reproducible data, training, evaluation and model release pipelines;
• Define datasets, annotation requirements and evaluation protocols for real deployment conditions;
• Analyse field data and model failures to improve accuracy and product performance;
• Optimize and deploy models to edge devices within accuracy, latency, memory, compute and power constraints;

• Collaborate with embedded software, hardware, QA, product and Customer Success on integration, validation and issue investigation.

   

Requirements:

• At least 7 years of industry experience in computer vision or deep learning, including object detection and tracking;
• Strong proficiency in Python and C++, PyTorch or TensorFlow, NumPy and OpenCV;
• Experience moving computer vision models from research into production;
• Experience optimizing neural networks for constrained edge hardware, including INT8 quantization and performance profiling;
• Strong understanding of model evaluation, dataset quality, overfitting, distribution shift and failure analysis;
• Ability to work independently and communicate clearly with technical and nontechnical stakeholders;
• M.Sc in Computer Science or Electrical Engineering with specialization in computer vision;

• Professional working proficiency in English.

   

Would be a plus:

• Experience with YOLO models and model conversion tools such as ONNX or TensorFlow Lite;
• Experience with embedded Linux, camera pipelines, real time systems or NPU and DSP toolchains;
• Experience with low resolution or wide-angle imagery, people counting or occupancy analytics;
• Experience with MLOps;
• Experience AI assisted development.

We offer:

Growth: Udemy corporate access, corporate English program, and educational meetups from partners.

Health: Medical insurance, psychological support, and fitness discounts.

Comfort: 100% paid vacation days and sick leaves and power-independent offices (Generators/Starlink).

Beyond Work: Free legal advice, referral bonuses, and loyalty program.

Greetings! We are looking for a systematic and experienced professional for

the position of Data Analyst for our company.

🧲 Magnetics is a digital company that develops and scales its own online products across competitive and fast-paced markets. Founded in 2014, we rely on data, bold hypotheses, and user experience to grow efficiently.

Requirements:
 

• 3+ years of work experience in the Data analyst, BI analyst, Product analyst or other similar analytics position
• Economic, math or technical education
• Proficient knowledge of BigQuery
• Strong experience with Tableau
• Ability to identify root causes of data anomalies and ability to test data
• Ability to work autonomously and keep the focus on the result
• Ability and readiness to learn fast

Will be a plus

• Experience with GCP services

How you'll be contributing:

• Supporting and Development BI reporting system (ETLs, DWH, BI, reporting andmonitoring from a scratch)
• Testing and validation of data after planned BI releases
• Analyzing the needs of the marketing and product teams in analytics and their implementation
• Search and selection of the best technical solutions adapted to current and future needs of teams
• Ad-hoc product analytics tasks and researches
• Monitoring and analyzing key product and payment funnel metrics

• Generating hypotheses and uncovering growth opportunities

   

Benefits of working with us:

🧲Office in Kyiv or Remote

🧲We cover 50% of the cost for individual courses, training, and language programs

🧲We cover 100% of the cost for team courses

🧲Free consultations with our lawyers and an additional 50% discount on any type of legal services.

🧲Health insurance

🧲Flexible schedule

🧲Regular salary reviews

🧲Team buildings in Ukraine

Ready to build analytics that drive real product decisions? Join Magnetics and let's grow together. Send us your CV!

Overview 

Come join us as we scale our retail and commerce loyalty platform! PAR Retail is looking for a Senior NodeJS engineer on its expanding product engineering team as we build and grow our Open Commerce enterprise software-as-a-service platform. 

Open Commerce is a technology suite that enables marketing professionals in the fuel & convenience industry to create real-time, hyper-personalized offers and customer interactions across a variety of channels (mobile, web, SMS, and in-person) to drive customer behavior toward a desired goal. 

Our technology bridges financial payment providers, retail fuel pump technology, and customer experience by wrapping low-level standards-compliant integrations with powerful software abstractions on an ultra-modern software platform. Our platform services and applications are built using a broad swath of technologies (Typescript, NodeJS, Ruby, React, and others), interconnected via GraphQL and RabbitMQ, and run in AWS using Terraform, Helm and Kubernetes (via EKS). 

PAR Retail has its headquarters in Philadelphia, Pennsylvania (USA) and leverages a diverse distributed product engineering and operations team across the United States and Ukraine. PAR Retail offers highly competitive compensation and benefits, as well as an engineering-friendly and product-centric culture. On PAR Retail’s Open Commerce team, we embrace a deeply collaborative software product development process where engineering, design, and product collaborate to shape and ship new functionality. 

Successful candidates will enjoy PAR Retail’s friendly and flexible culture, and embrace our relentless drive to excellence and goal of providing the #1 retail marketing platform in the fuel & convenience industry and beyond. 

Responsibilities 

• Working with the team, design and implement new functionality based on product objectives and requirements. 
• Work with the broader product engineering team to plan and coordinate feature and functionality improvements, as well as resolve bugs and execute technical enhancements, that cross-cut large parts of our platform. 
• Work to continually learn, improve technology skills, expand knowledge of the Open Commerce platform technologies, and gain increasing versatility across the breadth of our platform systems. 
• Expand APIs and business logic, and as needed write or revise customer-facing API documentation. 
• Work with our infrastructure team to enable and enhance highly-available, performant, and well-instrumented backend applications and services that run in our customer environments at substantial scale. 

• Support operations and infrastructure teams for issue resolution on relevant Open Commerce applications or services running in production environments. 

   

Qualifications 

• Practical experience building systems in Node.js 
• At least 5 years industry experience or equivalent 
• Experience building and maintaining backend APIs, including design, implementation, evolution, and maintenance 
• Familiarity with TypeScript, or similar modern strongly-typed language 
• Proficiency using both relational and non-relational database technologies 
• Strong understanding and familiarity with CI/CD pipelines and automated testing 
• Basic knowledge Docker and Kubernetes 
• Familiarity with OAuth and JWT 
• Some experience with front-end JS technologies, esp. React or Angular 
• An ability to work in service-based architectures 
• Highly independent and able to effectively self-organize and prioritize work 
• The ability to write clean code, and the discipline to write effective automated unit tests in order to deliver high-quality system improvements 
• An ability to effectively break down larger bodies of work for delivery as a series of small, self-contained changes to the system 
• Excellent spoken and written communication skills 

• BS/MS degree in Computer Science, Engineering, or equivalent years of professional working experience 

   

Bonus Points 

• Experience with Nest.js and/or GraphQL 
• Experience with Ruby on Rails 
• Experience with AWS 
• Experience working in distributed teams 

• Experience in the retail and/or fuel & convenience industries 

   

PAR Retail Offers:

- Long-term employment;

- Competitive compensation with regular performance-based salary and career development reviews;

- Paid vacations and sick leaves;

- Flexible working hours;

- A unique and friendly environment where everyone can explore and learn new technologies.

Who We Are

PAR Retail, with its Open Commerce® product suite and patent pending Wallet Steering® System, empowers Convenience & Fuel Retailers to gain more share of wallet and customer lifetime value than possible with any other solution provider. PAR Retail’s unified Open Commerce product suite consists of: Activate for Intelligent 1:1 Loyalty, Transact for Contactless Commerce, and Experience for Cross-Channel Customer Experiences. PAR Retail’s solutions are supported by a set of subscription-based program management services and are contractually backed by its 1.5X Performance Guarantee.

Responsibilities & Activities

• Build and maintain automated tests for Mobile, Web, and Backend applications;
• Analyse test results, investigate failures, and help drive issues to resolution;
• Collaborate with developers and product teams to ensure high-quality releases;
• Research and evaluate new automation tools, technologies, and industry best practices;
• Use AI-powered tools to accelerate test automation development and maintenance;
• Identify opportunities to automate repetitive QA and engineering workflows.

Experience & Skills You’ll Need

• Proficiency in TypeScript/JavaScript, including experience developing and maintaining automated test frameworks;
• Hands-on experience with Playwright, Appium, Detox, WebdriverIO, or similar automation frameworks;
• Experience working with CI/CD pipelines and automated testing practices;
• Practical experience using AI development tools such as Claude Code, GitHub Copilot or similar platforms;
• Experience using AI to create, maintain, and improve automated test coverage;
• Ability to leverage AI agents to increase productivity and automate routine engineering tasks;
• Strong communication, collaboration, and problem-solving skills;
• Highly proactive, self-driven, and comfortable taking ownership of initiatives with minimal supervision;
• Load and performance testing experience is a plus.

PAR Retail Offers:

- Long-term employment;

- Competitive compensation with regular performance-based salary and career development reviews;

- Paid vacations and sick leaves;

- Flexible working hours;

- A unique and friendly environment where everyone can explore and learn new technologies.

Smart Ink is an international manufacturer of high-quality compatible cartridges and toners for all major printer brands — HP, Canon, Brother, Epson, and Samsung. For more than nine years, we have been building affordable, high-quality products that hold top positions on Amazon in the Office Products and Home Office categories. Every year, we develop and launch 10–15 new products, taking each one from idea and product development to a successful launch and bestseller status across the US, Canadian, and European marketplaces.

Our mission is to change the rules of the game in the printing industry by making high-quality printing more affordable and delivering an exceptional customer experience.

We strive to give customers confidence in every Smart Ink purchase by standing behind our products and supporting them whenever needed.
 

We are looking for a Traffic Manager. You will own the offer and the traffic flows for your SKU portfolio and have a direct impact on the revenue and profitability of the products: here, every number is immediate feedback on what you did.

Key job responsibilities

• Build the overall traffic and sales strategy (organic and paid) for your SKU portfolio and define priority growth areas together with the Product Owner.
• Own pricing: the pricing logic for the category, testing prices, coupons, and discounts, competitor analysis, setting the Target Price, and assessing how price affects CTR, CPA, and conversion.
• Set targets for the PPC Manager: traffic volume, CPA, Units Sold, and advertising volumes across key search clusters (SQP performance).
• Monitor the quality of incoming traffic daily: check it against the product’s goals, initiate changes to the offer, and plan promo activities in line with the competitive environment.
• Work with SQP-based analytics: analyze the potential of search clusters and build a growth strategy for them.
• Own how the product looks on the shelf: the listing and its attributes, stock availability, images, and video. You raise point requests to content and design yourself, and prioritize systemic improvements together with marketing.
• Sync daily with the Product Owner, PPC Manager, Supply & Production, marketing, content, and compliance on category behavior, seasonality, and sales forecasts.
• Run regular traffic analytics: CTR, CVR, CPA, Net Profit, Gross Revenue, Ranking, AQ rate.

• Build, update, and maintain complex reports in Excel and Google sheets — most of the decisions above are made through working with data.

   

Basic Qualifications

• An understanding of how the Amazon marketplace works: the basics of Amazon Policy, listing structure, and the key metrics of listing performance.
• Analytical thinking: experience collecting and analyzing data through Helium 10, Sellerboard, or SQP, and the ability to read the numbers, spot patterns, and propose specific actions.
• Confident Excel and Google Sheets: core formulas, reports of varying complexity, and the ability to find an answer to a non-trivial question in the data quickly.
• An understanding of SKU unit economics and the ability to work toward key KPIs: CTR, CVR, CPA, organic visibility.
• A portfolio: the products you worked on, where their metrics started, where you took them, and what exactly you did to get there.
• Proactivity: you work well with the product, PPC, and supply teams, prepare clear recommendations, and back your proposals with data.
• Readiness to learn fast — new tools, metrics, and Amazon processes.

• English at B2 level 

   

Preferred Qualifications

• Experience taking a product to a leading position in its category: you have been through that path and know what it takes.
• An understanding of how external traffic to Amazon and Amazon Attribution work.

• Experience in the Office Products category or adjacent ones on competitive US or European marketplaces.

   

What we offer

• Remote work or the option to work from our A+ class office in central Kyiv.
• Working hours 10:00–18:00 Kyiv time, Monday to Friday,
• Base rate plus a performance bonus of up to 100% of base.
• Cooperation through a private entrepreneur contract, fully administered and taxed by the company.
• 24 days of paid vacation per year.
• Paid training and professional development.
• Compensation for English lessons.
• A corporate program that covers sessions with a psychologist.
• Free access to all company learning resources: courses and training from leading experts in e-commerce, analytics, management, and more.
• Corporate gifts, team-building events, and other activities.

Hiring process: application → recruiter interview → test assignment → technical interview with the hiring manager → final interview → job offer. We value your time, so we do our best to keep the hiring process moving as quickly as possible.

More about us: smartink.pro · product video · Instagram

• #1 brand among compatible and remanufactured ink cartridges across US and CA Amazon marketplaces
• Smart Ink cartridges are available in 31 countries.
• In nine years the company has grown from zero to 60,000–70,000 units sold per month.
• Our customer is the end consumer (B2C).
• A stable brand present on the most competitive markets: USA, Canada, Germany, France, UK, Italy, Spain.
• Our focus for the next two years: to become the largest brand in compatible and remanufactured cartridges and toners on the online markets where we operate.
• We have been systematically supporting units of the Armed Forces of Ukraine since the start of the full-scale invasion.

About the Role

JetMonsters IT Holding is looking for an Product Manager / Apps Product Lead with experience in iOS & mobile apps to build and lead the full cycle of testing and launching mobile applications for the US market at the JetApps studio.

This role focuses primarily on iOS subscription-based apps across categories such as tools, utilities, content, and health & fitness.

You will own the entire product lifecycle — from identifying promising app niches and defining MVP strategy to launching, testing, and scaling successful products.

Responsibilities

• Define product strategy and niche selection for new mobile apps to test.
• Identify core value propositions and define the MVP scope, product requirements and approve the UX logic.
• Define the required monetization model and unit economics.
• Define and manage key product metrics, build financial models for MVP, and ensure product profitability.
• Set up product analytics, manage events and funnel tracking
• Collaborate cross-functionally with development, marketing, and finance teams.
• Manage the full cycle of MVP development, testing, and iteration, making decisions: kill / iterate / scale.
• Work with A/B testing frameworks and drive experiment-driven product development

Requirements

• 3+ years of experience in Mobile Product Management (preferably iOS apps).
• Experience working with subscription monetization models.
• Proven experience launching subscription-based products from scratch in Tier-1 markets (US preferred), with a track record of scaling revenue and generating sustainable margins.
• Strong understanding of mobile app unit economics.
• Hands-on experience with product analytics tools (Amplitude, Firebase, AppsFlyer, or similar).
• Proven ability to build product roadmaps, define MVP hypotheses, and optimize retention and paywalls.
• Strong data-driven mindset and structured thinking.
• English level B1–B2 or higher.

Nice to Have

• Experience scaling mobile applications.
• Experience working in small, lean product teams (3–5 people).

Your Impact

• Opportunity to build and scale mobile apps from scratch.
• High ownership and direct impact on product and business results.
• Fast iteration cycles with data-driven decision-making.

We offer

• remote cooperation
• full-time, schedule from 9:00/10:00 to 18:00/19:00 (from Mon. to Fri.).
• Partial or full reimbursement for attendance at specialized courses and trainings, as well as for attending conferences and events in the field of specialization.
• Corporate English Club online.
• 15 days of paid vacation per year, paid sick leave; 10 days off for Ukrainian national holidays.
• Medical insurance / compensation for sports activities

If all of the above matches and resonates with you, and you have the relevant experience, you want to become part of the JetMonsters team and bring something new to it, send your resume and join us.

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

We are looking for a Junior Data Engineer to join our team and help build and maintain reliable data pipelines, transformations, and datasets for modern products in fintech, AI, telecommunications, healthcare, and other data-driven domains.

This is a great opportunity to work with real-world data, grow in data engineering, and gain hands-on experience with SQL, Python, ETL/ELT processes, and modern data platforms.

Responsibilities

• Support the development and maintenance of data pipelines and ETL/ELT processes 
• Collect, clean, transform, and load data from databases, APIs, files, and external systems 
• Write and optimize SQL queries for data preparation and transformation 
• Assist in building datasets for analytics, reporting, and internal products 
• Support data quality, consistency, and reliability across pipelines and datasets 
• Work with structured and semi-structured data 
• Participate in troubleshooting and improving data processes 
• Assist in monitoring and improving data pipeline reliability and performance 
• Collaborate with engineers, analysts, and product teams 

Requirements

• Basic understanding of data engineering concepts and data pipeline architecture 
• Hands-on experience writing SQL queries and working with Python 
• Understanding of relational databases such as PostgreSQL or MySQL 
• Ability to write SQL queries using joins, filtering, aggregations, and transformations 
• Basic understanding of ETL/ELT processes 
• Understanding of data modeling and data transformation principles 
• Familiarity with data formats such as CSV and JSON and working with APIs 
• Basic understanding of structured and semi-structured data 
• Analytical thinking and attention to detail 

• Motivation to learn and grow in a technical environment 

   

Nice to Have

• Basic experience with Pandas 
• Basic familiarity with Spark or PySpark 
• Familiarity with Airflow, dbt, or similar tools 
• Understanding of data warehouses such as BigQuery, Snowflake, or Redshift 
• Familiarity with cloud platforms such as AWS, GCP, or Azure 
• Familiarity with Git 
• Experience with BI or analytics tools 

• Interest in data platforms, analytics engineering, or ML/AI workflows 

   

What We Offer

• Work with real production data systems and modern technologies 
• Mentorship from experienced engineers and tech leads 
• Clear growth path to Middle Data Engineer level 
• Supportive engineering culture focused on learning and practical development 
• Flexible schedule and fully remote work opportunities

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

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

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

Responsibilities

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

Requirements

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

Nice to Have

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

What We Offer

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

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

We are looking for a Senior AI/LLM Data Engineer (Technical Consultant) to join our team and help design, build, and scale modern data pipelines and retrieval systems for AI-driven products in fintech, healthcare, telecommunications, automation, and other data-intensive domains.

This role is ideal for an engineer who combines strong data engineering fundamentals with hands-on experience in LLM and RAG systems and can contribute not only through implementation, but also through architecture design, technical planning, and consulting-driven engineering decisions.

Responsibilities

• Design and develop scalable data pipelines for AI/LLM products and internal data platforms 
• Build and maintain ingestion, transformation, chunking, enrichment, indexing, and retrieval workflows 
• Prepare and structure data for RAG systems, semantic search, embeddings, and LLM evaluation workflows 
• Support fine-tuning and data preparation workflows for LLM use cases 
• Work with structured, semi-structured, and unstructured data from documents, APIs, databases, and external systems 
• Design and optimize retrieval pipelines, including metadata strategies, filtering, ranking, and relevance improvements 
• Integrate LLM-based solutions with data platforms, vector storage systems, search platforms, and backend services 
• Participate in architecture design, technical planning, and engineering decision-making for AI/LLM initiatives 
• Improve system quality, scalability, reliability, observability, and cost efficiency 
• Diagnose and resolve complex issues in production AI/data environments 
• Collaborate closely with engineers, product teams, analytics, and AI teams 
• Transform business requirements into practical AI/data engineering solutions 

Requirements

• Strong commercial experience in data engineering with hands-on work building data pipelines, ETL/ELT workflows, and distributed data processing systems 
• Hands-on experience with AI/LLM systems, RAG pipelines, embeddings, semantic search, or vector search/retrieval systems 
• Strong Python and SQL skills 
• Experience working with structured, semi-structured, and unstructured data in production environments 
• Strong understanding of data modeling, data transformation, validation, and data quality practices 
• Experience designing scalable and maintainable data workflows 
• Experience with modern data platforms and tools such as Airflow, dbt, Spark, Kafka, or similar technologies 
• Experience with vector databases or search platforms such as Pinecone, Weaviate, Milvus, Elasticsearch, or OpenSearch 
• Understanding of data preparation and optimization techniques for LLM use cases, including chunking, metadata strategies, and retrieval quality improvements 
• Experience with cloud platforms such as AWS, GCP, or Azure 
• Experience with Docker, CI/CD pipelines, and production deployment practices 
• Ability to work independently, make technical decisions, and clearly communicate trade-offs and architectural choices 
• Experience participating in technical consulting, solution design, or client-facing technical discussions 
• English level: B2 or higher 

Nice to Have

• Experience with LLM evaluation frameworks, prompt pipelines, or fine-tuning workflows 
• Familiarity with LangChain, LlamaIndex, or similar orchestration frameworks 
• Experience with reranking, hybrid search, recommendation systems, or knowledge graphs 
• Understanding of MLOps, LLMOps, observability, and experimentation workflows 
• Experience with modern data warehouse or lakehouse platforms such as BigQuery, Snowflake, Redshift, or Databricks 
• Understanding of security, governance, and privacy practices in AI/data systems 

What We Offer

• Work on real-world AI/LLM and data-intensive products 
• Opportunity to participate in architecture, technical discovery, and solution design — not only implementation 
• Collaboration with strong engineers, architects, and product teams 
• Clear growth path toward AI Architect, Data Platform Architect, or Technical Lead roles 
• Open engineering culture focused on ownership, transparency, and continuous improvement 
• Long-term projects, flexible schedule, and fully remote work opportunities

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

We are looking for a Senior Java Developer (Technical Consultant) to join our team and help build scalable, high-performance backend systems for fintech, AI, telecommunications, healthcare, and other high-load domains.

This role combines hands-on backend development with participation in architecture design, technical planning, and a consulting-driven approach to building reliable, scalable, and maintainable systems.

Responsibilities

• Design and develop scalable backend services and microservices using Java 17/21, Spring Boot, and Spring Cloud 
• Participate in architecture design, technical planning, and engineering decision-making 
• Build event-driven systems using Kafka or RabbitMQ and develop REST or GraphQL integrations 
• Improve system performance, scalability, reliability, and maintainability 
• Optimize application performance, database interactions, and backend processing flows 
• Collaborate closely with DevOps, QA, product, and engineering teams 
• Participate in code reviews and contribute to engineering best practices 
• Diagnose and resolve issues in production environments 
• Participate in technical discussions with clients and stakeholders when needed 
• Provide technical guidance, architectural recommendations, and mentorship 

Requirements

• Strong commercial experience with Java and Spring Boot/Spring Cloud 
• Strong experience designing and building microservices, REST APIs, and distributed systems 
• Strong understanding of software architecture principles and integration patterns 
• Experience with PostgreSQL or MySQL and Hibernate/JPA 
• Experience with Kafka, RabbitMQ, or other messaging systems 
• Experience optimizing application performance, scalability, and database interactions 
• Experience with Docker and CI/CD pipelines 
• Experience with at least one cloud platform such as AWS, GCP, or Azure 
• Strong debugging, troubleshooting, and problem-solving skills 
• Ownership mindset and responsibility for technical solutions and delivery quality 
• Ability to communicate technical decisions clearly to both technical and non-technical stakeholders 

Nice to Have

• Experience with Redis, Elasticsearch, or GraphQL 
• Knowledge of Kubernetes or Terraform 
• Experience working with high-load systems, caching, and observability tools such as Prometheus, Grafana, or ELK 
• Familiarity with event-driven architecture and asynchronous communication patterns 
• Experience participating in technical consulting, solution design, or system modernization initiatives  

What We Offer

• Work on real-world projects in fintech, AI, telecommunications, healthcare, and other modern domains 
• Opportunity to influence architecture and technical decisions 
• Clear growth path toward Tech Lead or Architect roles 
• Open engineering culture with transparent processes and strong technical collaboration 
• Flexible schedule and fully remote work opportunities

We are looking for a Junior Java AQA Engineer to join our team and help build reliable automated tests for modern web products in fintech, AI, telecommunications, and healthcare domains.

This is a great opportunity to grow quickly into a strong automation engineer while working on real projects, real code, and real products under the mentorship of an experienced team.

Responsibilities

• Create and maintain automated tests for web applications using Java with Playwright and/or Selenium
• Cover key user flows with smoke and regression UI tests
• Perform API testing and backend response validation
• Analyze test results, identify issues, and create clear bug reports
• Collaborate with developers and QA engineers to improve product quality
• Participate in test case creation and gradually expand test coverage
• Support test stability and assist with debugging activities
• Continuously improve automation skills in a real project environment

Requirements

• Commercial, pet-project, internship, or freelance experience with Java for at least 6 months
• Understanding of software testing fundamentals
• Basic experience or strong interest in test automation
• Familiarity with Playwright, Selenium, or other UI automation tools
• Understanding of Page Object Model (POM)
• Basic understanding of HTML and CSS with the ability to locate web elements
• Basic knowledge of REST API concepts, HTTP methods, status codes, and JSON
• Hands-on experience with Postman for API testing and request validation
• Basic Git knowledge: commit, push, pull
• Attention to detail and motivation to write high-quality tests
• English level: B1 or higher

Nice to Have

• Experience with JUnit or TestNG
• Basic SQL knowledge
• Understanding of automation design patterns
• Familiarity with Maven or Gradle
• Basic understanding of CI/CD tools such as Jenkins or GitHub Actions
• Experience with Allure Reports or similar reporting tools
• Basic knowledge of JavaScript, TypeScript, or Python

What We Offer

• Work on real commercial projects with a modern technology stack
• Mentorship from experienced AQA engineers and tech leads
• Clear growth path to Middle AQA Engineer level
• Hands-on experience with automation frameworks and real testing processes
• Supportive team environment and regular feedback
• Flexible schedule and comfortable working conditions