Jobs at Djinni

At Cleveroad, we build projects with the same level of care as we build teams.
For us, delivery is not only about speed — it’s about transparency, predictability, and strong project governance.

That’s why we rely on structured project management practices and use PM artifacts as real working tools — not just formal documentation.
 

What you will be responsible for

• Driving IT projects (web and mobile) across the full SDLC: Discovery → Development → Release → Project closure
• Ensuring predictable delivery by planning timelines, managing scope, and controlling project milestones
• Acting as the main communication point for the client, running demos and sharing clear delivery updates
• Maintaining structured project documentation and PM artifacts, including communication plans, delivery reports, risk registers, Gantt charts, and change logs
• Managing scope creep and change requests while keeping delivery expectations aligned
• Identifying and mitigating project risks and dependencies
• Coordinating cross-functional teams (BA, QA, Designers, Developers, DevOps, Tech Leads)
• Using Jira and Confluence to track delivery progress, maintain documentation, and ensure team transparency
• Monitoring delivery and quality metrics such as delivery progress (SPI) and defect trends (e.g., bugs per developer)
• Ensuring the project moves forward with clear priorities, transparent communication, and controlled delivery
   

What we’re looking for

• 2+ years of experience as a Project Manager in IT
• Experience managing projects across all SDLC stages
• Practical experience with Agile methodologies (Scrum / Kanban)
• Ability to create and maintain PM artifacts and structured project documentation
• Experience managing scope creep and change requests
• Confident use of Jira, Confluence, spreadsheets, and planning tools
• Basic understanding of delivery metrics (e.g., SPI, bug trends, delivery progress)
• Experience coordinating cross-functional teams
• Strong client communication skills
• English: Upper-Intermediate or higher
   

What we offer

• A stable service company with well-established delivery processes
• Long-term international projects
• Clear project governance without chaos or overload
• Regular compensation reviews
• Professional growth and ongoing support
   

Sounds like a match? Let’s connect and see how we can work together.

Akurateco is a cutting-edge white-label payment software provider with 15+ years of hands-on experience in the payment industry, bringing fully-brandable and easily customizable payment software to our customers.

We are looking for an IT Project Manager to join our team.

Requirements:

• 4+ years of experience as an IT Project Manager in a product or service IT company
• Hands-on experience with complex software integrations involving multiple stakeholders (clients, internal teams);
• Strong initiative and proactive mindset — ability to independently identify problems and drive solutions without constant supervision;
• Result-oriented approach with a clear focus on business value and delivery;
• Strong problem-solving skills, critical and analytical thinking;
• Excellent communication skills — ability to clearly articulate ideas, negotiate, align expectations, and influence stakeholders;
• Ability to effectively collaborate with software developers and technical teams, speak their language, and remove blockers;
• Solid understanding and practical experience with Agile / Kanban methodologies;
• Strong Jira experience (JQL, Boards, Reports, Dashboards, backlog management);
• English level — at least Intermediate;
• Experience in technical support or business analysis.

Responsibilities:

• Independently manage projects end-to-end: initiation, planning, execution, delivery, and closure;
• Communicate directly with clients, gather requirements, manage expectations, and ensure high customer satisfaction;
• Manage project risks, budgets, dependencies, and priorities;
• Lead and coordinate the development team, motivate team members, and help remove impediments;
• Manage day-to-day operational activities of assigned projects;
• Use advanced delivery and performance metrics to control timelines, quality, and efficiency;
• Provide clear and transparent project reporting to stakeholders using Jira tools;
• Participate in all projects together with the Senior Project Manager;
• Work with company documentation, key metrics, and spreadsheets;
• Build and maintain strong, long-term relationships with internal customers and stakeholders.

We offer:

• Remote work;
• Fair remuneration;
• Challenging tasks and interesting project in fintech;
• Professional growth and English classes;
• 20 working days of paid vacation;
• 20 calendar days of paid sick leave (*with supporting medical documents);
• Public Holidays.

As a Senior Flutter Developer, you will lead the development of high-performance, visually appealing, and scalable mobile applications. You will collaborate closely with UI/UX designers, backend developers, and product managers to deliver seamless and engaging user experiences across iOS and Android platforms.

Key Responsibilities

• Develop, and maintain high-quality mobile applications using Flutter.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Ensure the performance, quality, and responsiveness of applications.
• Mentor and guide junior developers, promoting best practices and code quality.
• Participate in code reviews, troubleshooting, and debugging.
• Keep up-to-date with emerging mobile technologies and frameworks, recommending enhancements to the team.

• Optimize applications for maximum speed, scalability, and maintainability.

   

Requirements

• 5+ years of experience in mobile development, with at least 2+ years in Flutter.
• Strong understanding of Dart, Flutter framework, and mobile design patterns (MVVM, BLoC, Provider, Riverpod).
• Experience building apps for both iOS and Android platforms.
• Knowledge of RESTful APIs, GraphQL, and integrating with backend services.
• Solid understanding of state management, animations, and responsive UI design.
• Familiarity with version control systems (Git) and CI/CD pipelines.
• Excellent problem-solving skills and attention to detail.

• Strong communication skills and ability to work collaboratively in a team.

   

Nice-to-Have

• Experience with native mobile development (Swift, Kotlin/Java).
• Knowledge of Firebase, push notifications, and app analytics.
• Exposure to testing frameworks and automated UI testing.

• Open-source contributions in Flutter or mobile development communities.

   

About the Job

We are seeking a skilled Core Developer (Rust/ C++) for Swarm Robotics & Sensor Control with over 5 years of professional experience to join our dynamic development team. You will play a key role in building and optimizing the core architectures for the real-time control and management of robotic swarms and sensor systems. This position offers the opportunity to work with cutting-edge technologies and contribute to complex, mission-critical systems in a collaborative environment.

What is your Day to Day Mission:

• Design, develop, and maintain robust and scalable systems for swarm control and sensor management.
• Implement efficient communication protocols and real-time processing solutions for robotics.
• Collaborate closely with cross-functional teams to integrate backend components with robotics software and sensor networks.
• Optimize system performance, scalability, and reliability in a distributed robotics environment.
• Solve challenging problems using modern programming languages such as C++ and Rust.

• Participate in code reviews, architecture discussions, and software design decisions.

   

What you bring to the team:

• 5+ years of professional experience in backend development with a strong focus on real-time systems.
• Proficiency in Rust and C++, with a solid understanding of modern software development practices.
• Experience in building and optimizing backend architectures for distributed systems.
• Familiarity with network protocols, multithreading, and low-latency data processing.
• Knowledge of system architecture design, performance optimization, and resource management.

• Ability to work independently, solve complex technical problems, and thrive in a fast-paced startup environment.

   

Nice-to-Have:

• Experience in robotics, swarm control, or sensor integration.
• Familiarity with cloud platforms, Docker, or Kubernetes for scalable deployments.

• Understanding of embedded systems or real-time operating environments.

   

Why Quantum-Systems:

• We Stand with Ukraine
• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.
• We are industry pioneers who are ambitious, bold, and visionary.
• We push limits, think outside the box, and strive for technological excellence to shape the future of aerial data.
• We promise to be your runway for individual and professional growth.

About the Company

Established in 2004, ALLSTARSIT was founded with a clear vision: to enhance the landscape of global IT employment by bridging the gap between companies and skilled professionals. The core belief was that assembling a team shouldn't be hindered by geographical constraints. Fast forward to the present day, ALLSTARSIT stands as an international outstaffing service provider committed to change the way businesses recruit, compensate, and oversee top talent worldwide. 

With operational hubs scattered across Europe, Asia, and LATAM, and its headquarters situated in San Francisco, US, the company boasts a workforce of over 1,000 adept professionals. Spanning across more than 20 countries, ALLSTARSIT offers a diverse range of skilled employees across various verticals, including AI, cybersecurity, healthcare, fintech, telecom, media, and so on.

About the Project

The client’s company is revolutionizing the way new drugs and vaccines are approved for market by replacing manual processes with deep tech. Their core product, the project, is an AI-powered statistical analysis workspace designed to improve workflows and accelerate regulatory approval processes.
Accurate analysis of clinical research data is critical to helping millions of people receive safe and effective medical treatments faster. The project provides assurance that the data underpinning these analyses are of the highest integrity. By joining the client’s team, you can directly impact the speed at which new medications reach patients—many of whom may be your family or friends. You will also help drive the translation of meaningful ideas into beneficial products with the support of an inclusive and diverse group of highly talented professionals.
We are seeking a highly motivated and experienced Senior Data Engineer to join the client’s team.

Required skills:

• 3+ years of experience in Python development (or 1+ year of Python plus 2+ years in another language)
• 2+ years of experience in production data environments
• Strong experience with modern data engineering tools and libraries (e.g., Pandas, PySpark, SQLAlchemy)
• Hands-on experience with Databricks or other distributed data processing frameworks
• Proficiency in working with structured and semi-structured data from various sources (databases, APIs, files, etc.)
• Experience with Agile methodologies and tools
• Familiarity with data modeling, data warehousing, and performance optimization
• Excellent analytical and problem-solving skills
• Strong English communication skills, both written and verbal
• Team player with strong collaboration and interpersonal abilities

Advantages

• Experience with Databricks or similar platforms for large-scale data processing and analytics, as well as data orchestration tools and MLOps frameworks
• Experience delivering AI-ready datasets and knowledge of AI/ML frameworks
• Proficiency with regular expressions
• Experience with NoSQL databases (e.g., MongoDB)
• Familiarity with cloud services (AWS and/or Azure)
• Hands-on experience with Python testing and debugging tools such as PyTest
• Experience building and maintaining CI/CD pipelines
• Background in the pharmaceutical or life sciences industry
• Bachelor’s degree in Computer Science, Engineering, a related technical field, or equivalent practical experience

Scope of work:

• Design and implement robust, scalable data pipelines and workflows using modern data engineering frameworks
• Collaborate closely with Data Scientists, Analysts, Developers, and Product Managers to support data needs and model deployment
• Take ownership of data quality, data architecture, and production readiness across systems
• Build and optimize data extraction, transformation, and loading (ETL) processes across structured and unstructured datasets
• Develop reusable data processing components and libraries
• Troubleshoot data issues, performance bottlenecks, and maintain high data integrity across environments
• Contribute to the evolution of the client’s cloud-based data infrastructure
• Document data workflows and participate in the development and execution of test strategies for data systems

Responsibilities

• Develop and customize solutions on the Creatio platform
• Implement business logic using Creatio configuration tools
• Develop backend logic using C# and SQL
• Build integrations with external systems via REST APIs
• Implement workflows, data models, and UI components
• Participate in code reviews and technical discussions
• Work with business analysts and senior developers to implement requirements
   

Requirements

• 2+ years of software development experience
• Experience with C#
• Experience with JavaScript
• Experience with SQL
• Understanding of REST APIs
• Basic understanding of web application architecture
• Ability to work with existing codebase and platform configuration
• English B2 or higher. German will be a plus. 

Responsibilities

• Design, develop, and maintain complex applications on the Creatio platform
• Implement and extend business logic using Creatio configuration tools and server-side development
• Develop backend logic using C# and SQL
• Build integrations with enterprise systems via REST / OData APIs and web services
• Implement data models, workflows, and UI components
• Ensure solution performance, scalability, and maintainability
• Review code and contribute to development best practices
• Participate in architecture discussions and technical decision making
• Collaborate with consultants and project leads to translate business requirements into technical solutions
   

Requirements

• 5+ years of experience with Creatio development
• Strong knowledge of Creatio architecture, configuration, and customization
• Strong experience with C#, JavaScript, SQL
• Experience integrating enterprise systems using REST or OData APIs
• Experience with relational databases (MS SQL Server, PostgreSQL)
• Experience with version control systems (Git)
• Understanding of integration patterns and data synchronization
• Experience with CI/CD pipelines and deployment automation
• Ability to design maintainable and scalable solutions
• English B2 or higher. German will be a plus

If you are a attentive, disciplined person with written English at least at an Intermediate level, and you want to start your career in IT or have experience working as a lead generator, you have a great opportunity to realize your ambitions!

We are offering a part-time vacancy for a Lead Generator for Upwork.

Responsibilities:

• Quickly applying to relevant projects according to the brief
• Writing custom Cover Letters based on examples but with room for creativity
• Analyzing pre-selected applications
• Manually searching for applications
• Keeping statistics
• Meeting lead generation targets (at least 110 applications per month)

We offer:

• Prepared materials for work
• Training and support
• Timely feedback
• Ready-to-use materials for work
• Stable salary payments
• Bonus system

Working conditions:

• Remote work
• Communication via Telegram

Requirements:

• Upwork profile (or the ability to create one)
• Written English at Intermediate or Upper Intermediate level
• Quick response
• Discipline

Special:
We are prioritising Ukrainians. 
 

About us:

Top Rated on Upwork, 100% JSS as for now. We specialize in writing scripts for web automation and scraping in Python 3.x. Our solutions include processing around 800,000 requests every 10 hours using Python 3, MySQL, and Redis with minimal resources. Due to team expansion and to relieve some responsibilities from the company owner, we are looking for someone to search for new orders on the Upwork freelance platform and accompany them.

QA Madness is a European IT service company focusing strongly on QA and cybersecurity. The company was founded in 2013 and is headquartered in Poland.

Currently, we are searching for an experienced Magento Developer to work in an existing team developing new features for an eCommerce Magento-based project.
This position requires working in the US time zone.

Must have good communication skills in English.

Responsibilities:

— Plan, Develop, Test and Document advanced eСommerce solutions;

— Develop customer-specific and generic Magento modules;

— Develop integrations between Magento and different 3rd Party systems;

— Improve our CI/CD platform which supports a large number of clients;

— Regularly attend internal training courses to maintain required skillset;

— Develop solid solutions that are generic and reusable.

Experience:Apache, HAProxy, Varnish, Redis, Ubuntu Server

— Experienced in the full software development cycle, from planning to deployment;

— Hands-on Magento 2 experience;

— Experienced in the LAMP stack (Linux, Apache/Nginx, MySQL, PHP8);

— Experienced in OOP, knowledge of design patterns;

— Experience in the Web Server stack is highly beneficial: Apache, HAProxy, Varnish, Redis, Ubuntu Server;

— Flexibility to adjust to new processes;

— Capable of estimating/forecasting time to complete specified project tasks;

— Experience working with SSR and modern frontend frameworks like React, Next.js;

— Upper-Intermediate English, both verbal and written.

Good to have:
— Experience in Jenkins, Bash and Python Scripts;

— eCommerce domain knowledge;

— Experience contributing to Magento.

What We Offer:

— Competitive salary in USD or EUR and good compensation package (reviews on demand to ensure your compensation reflects your growth and impact);

— Corporate English courses with native speakers;

— Remote work opportunity;

— The ability to focus on your work: a lack of bureaucracy and micromanagement (no tracking tools).

Please note, this job is a full-time position, and it is relevant only if you meet all requirements. Any candidate who fails to meet the requirements will not be considered for the job.

*I give consent to the processing of my personal data uploaded via the form under the terms and conditions of QA Madness Privacy Policy (Processing of Candidates Personal Data).

QA Madness is a European IT service company that focuses strongly on QA and cybersecurity. The company was founded in 2013 and is headquartered in Poland.

Currently, we are searching for an experienced General QA Engineer to become a great addition to our team. Our client is looking for a General QA Engineer for the aviation project. You will play a key role in the development of an automation framework following best practices.
 

Must have good communication skills in English.

Work type: Remote.
Technical level: Middle.
Job category: QA.
Project: Aviation project.
English level: Upper-Intermediate.

 

Responsibilities:
— Execute automation test suite and analyze/report results;
— Manual testing with existing test cases;
— Plan and describe test scenarios for future automation in cooperation with colleagues;
— Implement new automation tests;
— Participate in team meetings to discuss task implementation details from a QA perspective;
— Create detailed testing documentation to grow the internal knowledge base;
— Search and try new testing solutions that can bring benefits;
— Be part of a full-stack development team;
— Look for new approaches in automation and apply best practices.

Required Skills:
— 2+ years of experience working with Manual and Automation testing;

— General knowledge and practical experience writing web automation using JavaScript;
— Strong proficiency in TypeScript and experience with testing frameworks such as Playwright and WebDriver.io;

— Experience with web testing frameworks and tools;

— Understanding of software development processes, stages, concepts, and methodologies of Quality Assurance;

— Experience in test case development, execution and maintenance;

— Experience with CI/CD tools;

— Strong analytical and diagnostic skills, attention to detail;

— Willingness to ask for help from colleagues and to help others;
— Knowledge and experience working with Appium for Mobile Automation;
— Upper-intermediate English level.

What We Offer:
— Competitive salary in USD or EUR and good compensation package (reviews on demand to ensure your compensation reflects your growth and impact);
— Corporate English courses with native speakers;
— Remote work opportunity;
— Flexible work schedule (Enjoy the freedom to start your 8-hour workday at a time that fits your schedule best, anytime between 8 a.m. and 11 a.m.);
— The ability to focus on your work: a lack of bureaucracy and micromanagement (no tracking tools).

Steps of the interview process:

STEP 1: Send your resume and complete the questionnaire.
STEP 2: Go through the screening interview with a Tech Recruiter.
STEP 3: Interview with technical specialists.
STEP 4: Interview with a client.
 

Please note, that this job is a full-time position, and it is relevant only if you meet all requirements. Any candidate who fails to meet the requirements will not be considered for the job.

*I give consent to the processing of my personal data uploaded via the form under the terms and conditions of QA Madness Privacy Policy (Processing of Candidates Personal Data).

PIN-UP Global is an international holding specializing in the development and implementation of advanced technologies, B2B solutions and innovative products. We provide certification and licensing of our products, providing customers and partners of the holding with high-quality and reliable solutions.

We are looking for a SEO Manager to join our team!

Requirements:
- Proven SEO experience (3+ years);

- Deep technical SEO expertise,

- Experience in the betting/sports/e-commerce industry;

- Ability to manage multiple projects simultaneously;

- Deep knowledge of white-hat and black-hat SEO methods;

- Experience with large project launches from scratch;
- Extensive experience managing and optimizing multilingual websites

- Experience working with AI-generated content;

- Ability to work with AI tools (prompt creation, effective usage for SEO tasks);

- Skills in delegating tasks to junior specialists;

- Strong task prioritization skills.

Will be your plus:
- Experience with Product SEO;

- Ability to set short and mid-term goals and organize team efforts to achieve them;

- Business metrics understanding;

- Proven cases of recovering websites after Google updates.

Responsibilities:
- Competitor analysis and market research;

- Launching new projects (full SEO cycle: strategy, budget, semantics, content, on-page optimization, internal linking, link-building plan);

- Conducting a technical SEO audit of the website, providing technical recommendations and guidelines for the website developer;

- Searching for new ways to attract traffic, offering suggestions to improve the conversion rate of the existing traffic;

- Monitoring key performance indicators and providing regular progress reports.

Our benefits to you:

☘️An exciting and challenging job in a fast-growing holding, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more
🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided
🏖Paid vacations, sick leave, personal events days, days off
💵Referral program — enjoy cooperation with your colleagues and get the bonus
📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
🎯Rewards program for mentoring and coaching colleagues
🗣Free internal English courses
✈️In-house Travel Service
🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, PIN-UP clubs for movie / book / pets lovers and more
🎳Other benefits could be added based on your location

We are looking for Senior UAV / Flight Control Engineer for one of our clients in civil aviation. 

The role is focused on hands-on work with UAV platforms and flight control systems. We are looking for someone with solid practical experience in configuring, testing, and optimizing drone systems in real-world environments.

Requirements:

- Strong hands-on experience with ArduPilot

- Experience with dual GPS / GNSS configurations

- Practical experience with RTK systems

- Strong PID tuning experience on UAV platforms

- Experience working with medium to large drones

- Background in Electronics Engineering, Mechatronics, Robotics, or a related field

- Ability to work on-site in Europe

 

Project details:

Contract duration: 6 months

Format: on-site

Location: EU

Start: as soon as available

Meet the YozmaTech

YozmaTech isn’t just another tech company - we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.

Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family - you’ll feel right at home with us.

Our client builds technology that empowers media companies to strengthen their businesses and deliver better experiences to their audiences. What began as tools to enhance audience engagement has grown into a global operation focused on driving large‑scale video growth for leading media brands. Their machine‑learning‑powered video platform maximizes revenue across web, mobile apps, CTV, and DOOH, giving publishers greater control, efficiency, and transparency.

The platform is fully demand‑agnostic, with supply path optimization at its core, ensuring partners capture more value without unnecessary intermediaries. Guided by a consistent philosophy of putting media companies first, the team acts as a true partner-listening, adapting, and delivering smarter video solutions that evolve with the fast‑changing digital landscape.

Key Requirements:
🔹 Bachelor’s degree in Computer Science, Engineering or equivalent technical field (or 4+ years of equivalent experience);
🔹 5+ years hands-on experience in technical support environment, implementing and debugging JavaScript/HTML/CSS in production environments;
🔹 Solid command of browser DevTools, network-trace analysis and console debugging;
🔹 Experience with version control systems such as Git, and understanding of SQL or ability to query and interpret data sets;
🔹 Ability to document technical issues and solutions clearly and concisely
🔹 Experience working in multicultural environments, particularly with U.S.-based teams, is an advantage;
🔹 Ability to effectively communicate and collaborate remotely across time zones, demonstrate proactive self-management, and maintain strong independent working habits;
🔹 English - Upper-Intermediate or higher.

What you will do:
🔹 Support the seamless onboarding of new clients by managing technical configurations, troubleshooting integration issues, and ensuring smooth implementation;
🔹 Troubleshoot technical implementation issues and meet response time targets;
🔹 Maintain expertise in EX.CO products and features, sharing knowledge and best practices with internal teams;
🔹 Monitor technical performance, identify issues and resolve proactively;
🔹 Write and maintain technical documentation, integration playbooks, and internal knowledge base articles;
🔹 Diagnose and resolve technical issues effectively, collaborating with the engineering and Product teams to address bugs, design, and client requests;
🔹 Manage platform configurations, including content setup, video player settings, and basic advertising integrations;
🔹 Conduct post-launch QA focused on validating technical performance and expected behaviors;
🔹 Perform validation checks on integration files and ensure configuration accuracy across environments;
🔹 Collaborate with developers and product teams to implement and test new integrations, including third-party APIs and SDKs.
🔹 This role follows a hybrid work model with three days in the office. The team works in rotating weekly shifts that align with both U.S. and European time zones. One week you’ll work the early daytime schedule (9:00–18:00 EET), and the next week you’ll switch to the later afternoon–evening shift (13:30–22:30 EET)

Interview stages:
🔹 HR interview;
🔹 Technical & general interview;
🔹 Home assessment;
🔹 HR interview;
🔹 Reference check;
🔹 Offer.

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products - and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.

From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining - and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Project Description:

We are looking for a Java Full-Stack Developer to join a banking project within the Treasury and Liquidity domain. The project focuses on building and enhancing systems that support liquidity management, cash flow monitoring, regulatory reporting, and internal treasury operations.

You will be working in a modern technology environment, contributing to the development of scalable backend services and user-friendly frontend applications. The team operates in an agile setup and leverages AI-assisted engineering tools to improve development efficiency and code quality.

Responsibilities:

- Design, develop, and maintain backend services using Java and Quarkus

- Develop and enhance frontend components using JavaScript

- Build and maintain REST and GraphQL APIs

- Work with SQL databases, including data modeling and query optimization

- Collaborate with business stakeholders within the Treasury/Liquidity domain

- Participate in code reviews and ensure high-quality coding standards

- Utilize AI-assisted development tools (e.g., GitHub Copilot) to increase productivity

- Contribute to architectural decisions and continuous system improvements

- Support testing, debugging, and resolving production issues

Mandatory Skills Description:

- Minimum 3 years of professional experience in Java development

- Fluent English (spoken and written)

- Strong experience with JavaScript

- Hands-on experience with REST APIs, GraphQL and Quarkus - Must have

- Solid experience working with SQL databases

- Experience with AI-assisted engineering tools (e.g., GitHub Copilot)

Nice-to-Have Skills Description:

- Experience in banking, treasury, or liquidity management projects

- Knowledge of microservices architecture

- Experience with cloud environments

- Familiarity with CI/CD pipelines

- Understanding of financial instruments and regulatory reporting

- Experience working in Agile/Scrum teams

Languages:

English: B2

Hello.

We are looking for a Middle+/Senior Node.js Developer to join Ohayu (https://ohayu.com). We are building the easiest way for travelers to stay online anywhere in the world. We’re a fast-scaling B2C mobile + web app (iOS/Android/Web) that lets people buy eSIM data plans in minutes - cheaper than roaming, no SIM shops, no hassle. Thousands of travelers already use Ohayu worldwide, and we’re just getting started.
Our ambition is bigger than eSIM: we’re evolving Ohayu into a full Travel App that makes every journey smoother.

What you’ll do:

This role is for someone who wants real ownership and real product impact.

• Own integrations with third-party APIs (telco/eSIM providers, payments, analytics, etc.) - abstraction layers, reliability, observability, edge cases, scale.
• Shape backend direction: architecture decisions, technical standards, and how we build/ship safely at speed.
• Enable rapid experimentation: implement backend changes for A/B tests and product iterations that directly impact conversion and retention.
• Build and maintain production-grade services: migrations, logging, alerts, uptime, and smooth releases.

What we’re looking for:

• 5+ years of backend with OOP experience
• 5+ years with Node.js + TypeScript
• 2+ years with NestJS
• 5+ years with MySQL / MariaDB / PostgreSQL
• Hands-on production experience: migrations, monitoring/logging, alerts, process managers (pm2/supervisor), incident mindset
• You work independently, communicate clearly, and take responsibility end-to-end
• At least intermediate English level (all work communication is in English)

Nice to have:

• Experience with high-load systems
• Experience supporting A/B testing and experimentation platforms/pipelines

Why to join us:

• Direct product impact: what you ship gets used immediately by real travelers.
• Ownership: you’re not “a contributor,” you’re a builder helping set the backend direction.
• Product engineering culture: we care about UX and conversion as much as we care about clean code.
• Fast pace, real learning: constant iterations, clear feedback loops, real-world constraints.
• Genesis ecosystem: access to strong expertise, resources, and networking.
• Benefits: health insurance, 20 paid vacation days, annual performance review with clear salary progression.

Work format: Possibility to work fully remotely or from our offices in Warsaw, Kyiv or Lviv.

Join us in reshaping the future of connectivity.