Jobs at Djinni

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

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

We are looking for a motivated and ambitious Junior Sales Manager to join our team. This is a fantastic opportunity to learn from experienced professionals, develop your skills in sales and affiliate marketing, and grow into a senior role.
 

Responsibilities:

• Support Senior Sales Managers in daily tasks and campaigns.
• Serve as the first point of contact for partners and influencers.
• Prepare proposals, presentations, and commercial offers.
• Assist in monitoring partner performance and campaign progress.
• Help with research, reporting, and market analysis.
   

Requirements:

• Strong desire to grow in sales and affiliate marketing.
• Upper-intermediate+ English level;
• High communication and presentation skills;
• Proactive and results-oriented mindset.
   

We offer:

• Training and mentorship from an experienced team.
• Competitive base salary + performance-based bonuses.
• Fast career growth with the potential to advance to Sales Manager.
• Opportunity to participate in international conferences.
• Modern office in Wrocław.
  
  Joining HypeON means becoming part of a global team that values innovation, creativity, and ambition. Here, you’ll work on international projects, build partnerships with leading creators, and help shape the future of influencer marketing.

Looking for a Middle Manual QA Engineer to join our team for a long-term project. Remote Full time.

Responsibilities:

• Research and report issues and defects into a problem tracking system (JIRA);

• Design, implement, and maintain test cases.

• Work with Development teams to develop test cases.

• Produce test reports; Document and manage defect identification through resolution and closure;

• Participate in User Acceptance Testing (UAT), System Testing, Smoke Testing and Integration Testing, Interface Testing, and Regression Testing.

Qualifications Required:

• 1 or more years of QA experience in a modern software development workflow

• Experience writing test cases for manual testing.

• Experience testing end to end.

• Relational databases (MySQL preferred).

• AWS, Docker, and Kubernetes experience a plus.

• English: Upper intermediate

We offer:

• Long-term contract

• Competitive compensation

• Flexible working schedule

• 100% Remote position

Arounda — Digital Product Agency looking for Brand / Marketing designer to join our beautiful team. We help to create and evolve web and mobile apps, marketing websites through Branding, Web design, UX/UI design, App development for startups and businesses.

Are you interested in diving into the world of start-ups, participating in creating businesses and new web products? Have you always dreamed of reaching out to people like Elon Musk and Mark Zuckerberg? :) Sure, we're not promising them anything, but it's all in your hands. Arounda is currently looking for a Brand / Marketing designer.

Our works:

https://arounda.agency/about

https://dribbble.com/arounda

What you will need to do:

- Building a visual identity;

- Creating illustrations;

- Creation of icons, schemes, layouts of various degrees of complexity;

- Designing marketing materials and content (banners, posts on social networks, etc.);

- Develop presentations;

- Design infographics, schematics, icons, etc;

- Editing and improvement of finished graphic materials;

Required skills:

- 1.5+ years of work experience;
- Shape brand identity including logo, colors, typography, layout, etc.;
- Design illustrations and graphics from the ground up or in a defined artistic style;
- Conduct research to understand market trends, audience preferences, and competitors;
- Create mood boards to explore visual directions and inspire design concepts;
- Knowledge of AI, Figma;
- Design brand communication assets including presentations, banners, social media posts, etc.;
- Orientation in the trends and needs of the digital market;
- The ability to think conceptually, to analyze graphics from the point of view of content and meaning;
- The ability to work in a team and conduct a constructive dialogue;
- Designing case studies for our internal marketing purposes.

- English - Upper-Intermediate or higher

Will be a plus:

- The ability to draw by hand;

- Work with animations (Adobe AE);
- Understand prepress preparation requirements for print production;

- Desire to become a specialist in creating digital product branding.

If there are skills you don't currently possess but are eager to develop, we can assist you in honing these abilities.
 

We offer:

- Fully remote position, but with regular online and offline events;

- A well-coordinated team;

- Interesting foreign projects

- Market salary (depending on level);

- Flexible work schedule from 8:00/12:00 to 16:00/20:00;

- Education and trainings are partially paid by the agency.

FFAIR is an award-winning UK-based event technology company that specializes in creating innovative and disruptive digital products for the events sector. We're seeking for a talented and motivated QA/QC Engineer to join our expanding team.

In this role, you'll work closely with our product and operations teams to build and enhance our digital products and services

Qualifications:

- 1+ year of experience as a QA/QC Engineer

- Expertise in web testing

- Strong knowledge of testing lifecycle

- Nice to have: API testing

Responsibilities:

- Analysis of requirements

- Test design (checklist)

- Test execution

- Regression/Smoke testing

- API testing

Benefits:

- Competitive salary and benefits package

- Opportunities for growth, learning, and development

- A supportive and collaborative team culture that values diversity and inclusion

- Flexible working hours and remote work options

Hiring process:

1. Introductory screen: Our recruitment specialist will review your application and schedule a call to get to know you better and tell you more about the role and company.

2. Technical interview: You'll virtually meet with 2-3 members of our team to assess your technical skills, values fit, and cultural add. You may also be asked to complete a short task that closely mirrors some aspects of the role. The remote interview takes about 1-2 hours.

3. Reference checks: We'll ask for 2-3 professional references to chat about your time working together.

4. Final decision: The project manager will consolidate all of the feedback and let you know of their decision.

5. Offer: If you are our perfect match, and we're yours, an official offer will be made!

6. If you're a highly motivated and passionate software developer who's looking for an exciting new challenge, we want to hear from you! Apply today and join our amazing team at FFAIR.

Trial: 3 months

Employment: Direct contract with UK company

About FFAIR Limited FFAIR is a UK-based event technology company that specialises in creating award-winning industry-leading digital products for the events sector. Our team of experienced event professionals has won numerous awards for our innovative and disruptive solutions, and we're passionate about driving growth and making exhibitions simpler for our customers.

At FFAIR, we believe that innovation, collaboration, and a customer-centric approach are key to our success. We have a supportive and collaborative team culture that values diversity and inclusion, and we're dedicated to providing our employees with opportunities for growth, learning, and development. We offer flexible working hours and remote work options, regular team-building events and activities, and a competitive salary and benefits package.

We're always looking for highly motivated and passionate software developers who are looking for an exciting new challenge. If you're interested in joining our amazing team at FFAIR, please check out our job postings or get in touch with us today.

Company website:
https://www.ffair.io/

We are looking for a seasoned Full-Stack Engineer with a product mindset!

Ukraine and Poland | Full-Time | Remote

About the role

Our team is growing, and we are looking for a talented software engineer. You will work in small teams on various products. The Software Engineer plays a key role in the decision-making process about technologies and our core product as we bring new and innovative products to the market. You will use the latest technologies and frameworks, Node.js and Postgres on the server-side and React on the client-side.

What you’ll do

• Design of the overall architecture of the web application
• Lead the Front-end & BE effort to implement cool new features, services, and APIs
• Write reusable code and libraries
• Optimize the application for maximum speed and scalability
• Solve bugs (no one can hide from it)
• Cover functionality with tests and monitoring
• Work closely with managers, engineers
• Contribute in all phases of the development lifecycle to build first in class FE & BE solutions
• Bring fresh ideas to the team and suggest new technologies

Who you are

• 3+ years of experience as a full-stack engineer
• Strong proficiency with NodeJS, JavaScript, TypeScript
• Experience with React or similar frontend frameworks
• Experience with NestJS
• Experience with FE & BE performance optimizations
• Experience with Jest Testing Framework
• Experience with Postgres
• Passionate about technology enjoys solving complex problems and learning new technologies
• Communication (are you sharing your thought process and asking questions where appropriate?)
• Teamwork (are you a team player putting the mission before self-interest?)
• Beauty and simplicity (of your code)
• Upper-intermediate or higher English level

Nice to have

• GraphQL
• Cloud experience (AWS)
• Manage infrastructure as code (Terraform, HashiCorp)

About us

Redocly specializes in API solutions, focusing on API design, documentation, and governance. They provide tools and services that help organizations create, manage, and optimize their APIs efficiently.

The mission is to accelerate API ubiquity. The primary way we do that is to improve our developer experiences. We’re a team of about 60 people focused on making the best products we can for our customers. We have a strong product-market fit. The products you work on are used by millions of people. We use Shape Up methodology.

Headquarter – Austin, Texas, US. We also have an office in Lviv.

https://redocly.com/ 

Redocly is trusted by leading tech, fintech, telecom, and enterprise teams to power API documentation and developer portals. Redocly’s clients range from startups to Fortune 500 enterprises.

Working with Redocly

• Tech stack: JS, TS, Node.js, Nest.js, React.js,Vitest, Postgres, AWS, Terraform
• Team: 5 people (middle-seniors)
• Team’s location: Ukraine&Europe
• There are functional, product, and platform teams and each has its own ownership, and line structure, and teams themselves decide when to have weekly meetings. 
• There are cycles of 8 weeks and teams can be mixed.
• Engineers are involved in all parts every two months to work on different things.

Perks

• Full remote
• Cooperation on a B2B basis / Gig-contract
• Contract with the US based company (no VAT)
• After a year of working with the company, you can buy a certain number of company’s shares
• Around 30 days of vacation (unlimited,  but let’s keep it reasonable 😁)
• 10 working days of sick leave per year
• Public holidays according to Polish law
• No trackers and screen recorders
• Working hours – European timezone. Working day – 8 hours. Mostly they start working from 10-11 am
• Equipment provided – MacBooks (M1 - M4)
• Performance reviews

Hiring stages

1. Prescreening (30 min)
2. HR Call (45-60 min)
3. Technical Interview (up to 30 min)
4. Trial Day (paid) - Offer Call

Interested? Let’s connect and discuss the details!

About us:

ARRISE sets the benchmark for service delivery and excellence in the iGaming industry. Playing a key role in the success of its clients, which include Pragmatic Play, a brand relied upon by the world’s biggest online casinos for its cutting-edge products, ARRISE helps to deliver exceptional gaming experiences to millions of players worldwide.

Our global team of talented and driven professionals are shaping the future of iGaming. Headquartered in Gibraltar, we have offices spanning Canada, India, the Isle of Man, Latvia, Malta, Romania, Serbia, Bulgaria, and the UAE, and more exciting destinations on the horizon.

At ARRISE, we take pride in creating growth opportunities at all levels, constantly investing in our people while welcoming new colleagues and forging strategic partnerships that open new opportunities for success. 

To achieve this, we bet on ourselves. We know that success is a collective effort, and our team is driven by ambition, collaboration, and a shared commitment to grow and succeed—while embracing every step of the journey.

Be part of the future of iGaming with ARRISERS! See a job that excites you? Apply now, and our friendly recruitment team will connect with you soon. Your journey starts here!

Required Skills: 

• 5+ years of hands-on experience in commercial software development using Java.  
• Solid understanding of Object-Oriented Programming (OOP) concepts and proficient in applying design patterns. 
• Extensive expertise in Java Core and the Spring framework (including Spring Boot, Spring Web, Spring Data, Spring Cloud). 
• Proficiency in vanilla JDBC for database interactions. 
• Strong understanding of RDBMS concepts and SQL, with experience working with databases such as Oracle, PostgreSQL. 
• Experience with Redis. 
• Experience with distributed messaging systems, particularly RabbitMQ. 
• Proven track record in the development of microservices and distributed transactional systems. 
• Knowledge of fundamental design principles for building scalable and highly available applications. 
• Good foundation in algorithms, design patterns, and data structures. 
• Proficiency in unit/functional testing frameworks such as JUnit 4/5, Spock, and Testcontainers.  

Preferred Skills:  

• Experience in application and infrastructure monitoring. 
• Proven ability to troubleshoot production problems related to software applications. 
• Exposure to high-load systems. 
• Good spoken and written English skills. 
• Experience with JSP, Thymeleaf, JavaScript, TypeScript, React would be a big plus. 
• Experience with MongoDB would be a big plus. 

Responsibilities:  

As a Java Software Engineer, you will play a pivotal role in engineering and implementing a high-loaded enterprise system that serves tens of thousands of users logging into our product every day. Your responsibilities will include: 

• Collaborating with cross-functional teams to design, develop, and maintain robust software solutions that meet the needs of our enterprise-level system. 
• Architecting scalable and efficient Java-based components to ensure optimal performance under high load. 
• Implementing best practices in software engineering, including code reviews, testing methodologies, and documentation standards. 
• Optimizing system performance and reliability through continuous monitoring, troubleshooting, and performance tuning. 
• Participating in the entire software development lifecycle, from requirements gathering and design to deployment and support. 
• Staying up-to-date with the latest technologies and industry trends to continuously improve our system architecture and development processes. 

Company offers: 

• Long-term employment. 
• Flexible timetable. 
• Comfortable working conditions. 
• Paid vacation and sick leaves. 
• English lessons, gym. 
• Competitive salary level. 

About us:
 

ARRISE sets the benchmark for service delivery and excellence in the iGaming industry. Playing a key role in the success of its clients, which include Pragmatic Play, a brand relied upon by the world’s biggest online casinos for its cutting-edge products, ARRISE helps to deliver exceptional gaming experiences to millions of players worldwide.

Our global team of talented and driven professionals is shaping the future of iGaming. Headquartered in Gibraltar, we have offices spanning Canada, India, the Isle of Man, Latvia, Malta, Romania, Serbia, Bulgaria, and the UAE, and more exciting destinations on the horizon.

At ARRISE, we take pride in creating growth opportunities at all levels, constantly investing in our people while welcoming new colleagues and forging strategic partnerships that open new opportunities for success. 

To achieve this, we bet on ourselves. We know that success is a collective effort, and our team is driven by ambition, collaboration, and a shared commitment to grow and succeed—while embracing every step of the journey.

Be part of the future of iGaming with ARRISERS! See a job that excites you? Apply now, and our friendly recruitment team will connect with you soon. Your journey starts here!

Required Skills: 

• 5+ years of hands-on experience in commercial software development using Java.  
• Solid understanding of Object-Oriented Programming (OOP) concepts and proficient in applying design patterns. 
• Extensive expertise in Java Core and the Spring framework (including Spring Boot, Spring Web, Spring Data, Spring Cloud). 
• Proficiency in vanilla JDBC for database interactions. 
• Strong understanding of RDBMS concepts and SQL, with experience working with databases such as Oracle, PostgreSQL. 
• Experience with Redis. 
• Experience with distributed messaging systems, particularly RabbitMQ. 
• Proven track record in the development of microservices and distributed transactional systems. 
• Knowledge of fundamental design principles for building scalable and highly available applications. 
• Good foundation in algorithms, design patterns, and data structures. 
• Proficiency in unit/functional testing frameworks such as JUnit 4/5, Spock, and Testcontainers.  
• Proficiency in Ukrainian.

Preferred Skills:  

• Experience in application and infrastructure monitoring. 
• Proven ability to troubleshoot production problems related to software applications. 
• Exposure to high-load systems. 
• Good spoken and written English skills. 
• Experience with JSP, Thymeleaf, JavaScript, TypeScript, React would be a big plus. 
• Experience with MongoDB would be a big plus. 

Responsibilities:  

As a Java Software Engineer, you will play a pivotal role in engineering and implementing a high-loaded enterprise system that serves tens of thousands of users logging into our product every day. Your responsibilities will include: 

• Collaborating with cross-functional teams to design, develop, and maintain robust software solutions that meet the needs of our enterprise-level system. 
• Architecting scalable and efficient Java-based components to ensure optimal performance under high load. 
• Implementing best practices in software engineering, including code reviews, testing methodologies, and documentation standards. 
• Optimizing system performance and reliability through continuous monitoring, troubleshooting, and performance tuning. 
• Participating in the entire software development lifecycle, from requirements gathering and design to deployment and support. 
• Staying up-to-date with the latest technologies and industry trends to continuously improve our system architecture and development processes. 

Company offers: 

• Long-term employment. 
• Flexible timetable. 
• Comfortable working conditions. 
• Paid vacation and sick leaves. 
• English lessons, gym. 
• Competitive salary level. 

Lead the development and scaling of our scientific knowledge graph—ingesting, structuring, and enriching massive datasets from research literature and global data sources into meaningful, AI-ready insights. 

Requirements: 

- Strong experience with knowledge graph design and implementation (Neo4j, RDFLib, GraphQL, etc.). 

- Advanced Python for data engineering, ETL, and entity processing (Spark/Dask/Polars). 

- Proven track record with large dataset ingestion (tens of millions of records). 

- Familiarity with life-science or biomedical data (ontologies, research metadata, entity linking). 

- Experience with Airflow/Dagster/dbt, and data APIs (OpenAlex, ORCID, PubMed). 

- Strong sense of ownership, precision, and delivery mindset. Nice to Have: 

- Domain knowledge in life sciences, biomedical research, or related data models. 

- Experience integrating vector/semantic embeddings (Pinecone, FAISS, Weaviate).

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

We are looking for an ambitious and result-driven Influencer Marketing Managers to join our teams on Fintech and iGaming and Software to help us develop our client portfolio and lead advertising campaigns for our clients with bloggers around the world.

RESPONSIBILITIES:
 

• Plan, launch and process communication with influencers, collect prices and statistics from bloggers;
• Lead the client’s advertising campaigns in accordance with the approved strategy;
• Launch advertising campaigns on YouTube, Twitch, Instagram, TikTok platforms within specified budgets;
• Conduct negotiations with bloggers to maximize the efficiency of cooperation;
• Maintain business correspondence in English and Russian, including emails and keeping the contact with bloggers;
• Plan and manage tasks6, meet deadlines for advertising campaigns;
• Propose creative ideas for advertising integration with bloggers, content analysis and advertising scenarios;
• Manage the process of signing contracts and other documents;

• Communicate with clients conduct strategic and operational calls;

   

REQUIREMENTS:
 

• At least 1 year of Experience working at Influencer Marketing;
• Experience in launching advertising campaigns in geos (Eng Tier-1 / EU / LatAm / MENA / Asia);
• English (from B2), additional languages ​​will be a plus;

• Ability to manage advertising campaigns with bloggers with positive ROI, analyze the results of ad launches.

   

We are looking for an ambitious and result-driven Influencer Marketing Managers to join our teams on Fintech and iGaming and Software to help us develop our client portfolio and lead advertising campaigns for our clients with bloggers around the world.

We are an iGaming company with over three years of experience and a team of more than 1000+ specialists. 

Our achievements include 8 major projects that are popular among our clients and successfully operate in Tier 1-3 countries. 
The company attracts and values highly qualified specialists, which allows us to efficiently build processes and successfully expand our presence in new locations. 

Join the team that launches new projects in various markets and shapes the future of the iGaming industry.

 

What experience is important to us:

• Casino Product manager experience of at least 3 years, total experience 4+ years;
• Analytical skills and knowledge of the main casino metrics (GGR, NGR, RTP, RR, C2R/R2D, LTV, Bonus Cost/Rate);
• A/B analysis skills, Google Analytics, Hotjar, Power BI;
• Experience and understanding of UX/UI design;
• Excellent knowledge of the market and competitors (Tier-1/3);
• Launch of casino bonus policy;
• Experience in product management, including development of roadmaps, design management and successful project launches;
• Ability to generate reports, analyze product metrics and generate reports;

• Strong communication and interpersonal skills to work successfully with team and stakeholders.

   

What you will do:

• Management of the (Tier-1/3) Product Managers team;
• Control of the creation of a promo calendar on projects;
• Analysis of the passability and popularity of all deposit payment methods;
• Control of all key product metrics;
• Analysis of already working functionality, finalizing it, identifying successful cases for launching successful functionality on flagship projects;
• Development of mockups, new products, for designers and developers;
• Compilation and maintenance of the backlog of project tasks. Setting and actualizing priorities;
• Analysis of competitors and study of new casino functionality;

• Analysis of the effectiveness of the bonus system;

   

Why you should join us:

• We work remotely: Mon-Fri, from 10:00 to 19:00 (GMT+3) – save time by avoiding commuting.
• Work equipment  – everything you need for your productivity and comfort. 
• Paid vacation and sick leave  – we care about your health and timely rest. Additionally, you will have a day off in honor of your Birthday.  
• Cool creative gifts for holidays and events – we know how important it is to delight our employees on special occasions. 
• Competitive salary  – your contribution will be properly valued. 
• Participation in company internal events  – knowledge exchange among colleagues and enhancing your expertise. 
• Freedom from micromanagement and rigid hierarchies – we make decisions quickly, and you can always reach out for advice directly from any team member.
• Referral program in the company – build a dream team with us and receive nice bonuses. 
• 100% guaranteed professional development and acquisition of new skills.
  
   

As a team, we are constantly striving to be the best among our competitors! We offer a dynamic, forward-thinking work environment within a profitable company. We recognize that our specialists and managers are crucial to our success and are always ready to support their initiatives.

Join the best! 🚀

We are a media buying agency with 6+ years of experience:
💰 $1M+ monthly spending
📱 Running Web & In-App traffic for Android/iOS
🧠 Planning to launch Google / Meta / TikTok buying
🤖 Our own mobile apps (Android/iOS) with ad monetization
👩‍💻 In-house production: scripts, art, motion, landing pages
📌 Planning to automate routine creative processes (testing, uploading, pausing)
📊 Proprietary antifraud systems and auto-bidders
📎 Direct collaboration with founders with 15+ years of experience

Requirements:

🔸 Senior+ UA specialist in In-App
🔸 Strong knowledge of Mintegral, AppLovin, Unity, IronSource, Liftoff, etc.
🔸 Proven experience scaling campaigns from scratch
🔸 Proficiency with Appsflyer / Adjust / AppMetrica
🔸 Experience with ad, hybrid, and subscription monetization
🔸 Ability to adapt strategies for each source, GEO, and audience

Responsibilities:

▪️ Define the strategic direction of UA and identify new growth opportunities
▪️ Quickly explore new traffic sources, evaluate potential, and integrate them into workflows
▪️ Search for and scale new sources (TapJoy, Adjoe, MiAds, Kwai, etc.)
▪️ Optimize media buying and improve efficiency of current channels
▪️ Test hypotheses, identify growth points, and optimize creative performance
▪️ Lead and mentor a team of traffic managers
▪️ Manage and optimize budgets starting from $1M+ monthly

Nice to have:
🔸 Experience with alternative sources (TapJoy, Adjoe, MiAds, Kwai, etc.)
🔸 Experience with Web/Social/Google traffic
🔸 Experience managing and scaling a UA team

We offer:

▪️ Proprietary applications in the crypto and utility categories (Android/iOS) with advertising monetization
▪️ Working with large budgets — $600–700K+/month
▪️ We will add to your stack: skills in effective CPI purchasing with large budgets, thanks to real-time managed bidding via API and auto-optimization
▪️ Our own anti-fraud solutions and auto-bidders — all through analysts
▪️ No time wasted on routine tasks — a separate team takes care of launching and running advertising campaigns
▪️ Creative in-house team — scriptwriters, artists, and motion designers do everything quickly and on task
▪️ Work under the guidance of an expert with over 10 years of experience. 
▪️ Remote format of interaction. 
▪️ Schedule: 10:00 a.m. to 7:00 p.m. Cyprus time.
▪️ 20 working days of vacation and paid sick leave.
▪️ Salary from $5000 (depends on seniority level)
▪️ We work according to the Cyprus holiday calendar.
▪️ Probationary period is 3 months. 
▪️ The team consists of strong specialists. We value initiative, responsibility, teamwork, and the desire for growth.

If you would love to operate in an agile team that’s known for efficient decision-making processes and contribute to its success with your outstanding Javascript skills - right me back, do not hesitate 
 

Basically, your duties will be:

• Conceptualize and implement high-quality features, diagnose bugs, and provide effective solutions
• Develop our REST APIs
• Optimize existing backend code and database queries for performance, testability, and scalability
• Cooperate with the local and international agile development team
• Design and implement new features
• Utilize AWS services (Lambda, Transcribe, S3)

Requirements:

• Strong knowledge and experience in Node.js and React.js.
• Familiarity with Next.js and MobX for state management.
• Proficiency in AWS services (Lambda, Transcribe, S3).
• Experience with GraphQL and RESTful API design.
• Strong skills in using PostgreSQL and Redis.
• Spoken English for effective communication.

Bonus points for:

• Knowledge of ffmpeg for media processing.
• Experience integrating ChatGPT or other AI tools.

What We Offer:

• A unique opportunity to work in a fast-moving, international scaleup atmosphere with highly motivated and open-minded colleagues.
• A competitive compensation package, including 20 paid vacation days and paid sick leave.
• A comfortable office in the heart of Kyiv, with the flexibility to work remotely.
• Flexible working hours to accommodate your lifestyle.
• Opportunities to participate in tech talks, hackathons, and technical conferences around the world.
• If this sounds like the perfect opportunity for you, don’t hesitate—write us back and let’s start the conversation!

We invite you to become a full-on part of the IT company that aims to get to the top of blockchain technologies. Join our pro team to implement innovative projects and contribute to further FinTech development.

What you get:

Flexible work schedule

High pay for your work and good prospects for development

depends on your skills

New opportunities and a friendly environment for self-improvement.

100% compensation of expenses related to participation in trainings and specialized conferences/seminars.

Skills we need:

3+ years of experience in software development (Node.js + TypeScript).
Experience in FinTech projects 

Knowledge of software development fundamentals, data structures, design patterns etc.

Knowledge of major Node. js modules — async, lodash, nodemon, etc.

Experience with using Node. js debugging, profiling and performance measuring tools.

Experience with express, NestJS, Typeorm, PostreSQL, CQRS, Redis etc.

Experience with build tools, code coverage and testing frameworks — Mocha, Gulp, web pack etc.

Knowledge of building RESTful web services.

Experience with Docker.

Your responsibilities:

Application development.

Highly-modular object-oriented code creation.

Creating new features within service/microservices architecture.

Build quality code adhering to industry standard coding practices.

Creating technical documentation.

About Us:

Atto Trading is a dynamic quantitative trading firm at the forefront of global high-frequency strategies. We are seeking a C++ Software Engineer to join our growing team. 

This position is open for relocation for in-office presence to Lisbon, Portugal or remote work from Ukraine, with in-office presence in Kyiv required once circumstances allow.

We are expanding an international, diverse team, with experts in trading, statistics, engineering, and technology. Our disciplined approach combined with rapid market feedback allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort. 


What You’ll Do:

• Design and deploy performance-critical components for large-scale trading infrastructure.
• Develop high-frequency trading (HFT) systems in C++ with an emphasis on low latency and reliability.
• Write modern, efficient code using the latest C++ standards.
• Interface directly with cutting-edge networking hardware via kernel-bypassing drivers.
• Conduct performance research to push the boundaries of our platform's speed and scalability.
  
   

What We’re Looking For:

• 3+ years of hands-on experience with C++ development.
• Deep understanding of C++ standards (C++14, C++17; C++20 is a strong plus).
• Hands-on experience with Python and/or Bash scripting.
• Proficiency with Linux environments and system-level programming.
• Solid grasp of multithreading, IPC, and concurrent systems.
• Strong skills in latency and throughput optimization, including experience with profiling and PGO.
• Knowledge of OOP and software design patterns.
• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.
• Excellent attention to detail, with a critical and quality-focused mindset.
• Comfortable working independently or in small teams in a dynamic, high-speed environment.
• Strong communication skills and upper-intermediate (or higher) English proficiency.
• Curiosity and passion for financial markets and trading.
  
   

Nice to have:

• Experience developing high-performance, low-latency systems on Linux.
• Familiarity with OS internals and kernel-level networking.
• Understanding of financial instruments such as stocks, ETFs, futures, or options.
• Protocol-level networking knowledge (TCP/UDP/IP stack insights are a plus).

What we Offer:

• Opportunities to grow your skills and develop professionally
• Challenging and interesting tasks
• Competitive pay
• Paid time-off
• Coverage of health insurance costs 
• Monthly mental health budget
• Performance-based bonuses
• Modern office in city center with paid lunches and parking spaces

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, giving you the opportunity to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

Hi there!

Are you a tech enthusiast ready to take on a challenging role in a dynamic environment? We’re looking for a Support Engineer who is passionate about working with complex systems that make a real impact across the globe. If you have experience with Linux/UNIX, TCP/IP networking, MySQL, and hardware server components, you might be the perfect fit for our team!

Join us to work on world-class communication solutions, develop your skills, and build an exciting career.
Required skills:

— Intermediate English (B1)

— Familiarity with Linux/UNIX command-line tools/environment

— Intermediate knowledge of TCP/IP networking, network protocol and packet analysis

— Experience with MySQL or other SQL database

— Understanding of typical hardware server components

As a plus:

— Technical background and IT education

— Scripting skills (bash, perl or python)

— Linux server performance troubleshooting

— Experience with web server software (like apache, nginx)
— Knowledge in the field of voip, sip

Don’t know how to deal with an issue yet? Don’t worry, we’ve got good internal courses and documentation and a great team to help you climb up the learning curve!

We offer:

— Professional development

— Highly skilled colleagues who are ready to share knowledge

— Professional trainings

— Excellent career opportunities. Make yourself and become anyone you are willing to: Senior System Engineer, Senior System Administrator, Senior Software Developer, Senior QA Automation, Senior Project Manager, etc.

— Official competitive salary

— Performance review every six months

— Paid vacations, compensatory leaves and sick leave

— Work schedule up to you: standard “office” schedule (5 day 9 till 18.00 it is Kyiv time (UTC+2/+3 ) Or flexible schedule with 12-hour shifts every three days from 8 till 20.00 or from 20.00 till 8.00.

— English classes with the experienced teachers

Responsibilities:

— Assisting telecommunication providers with launching new projects, or reconfiguration of our solutions to fulfill their current business needs

— Troubleshooting technical issues by request from customer’s tech team

—Monitoring of customers’ hardware and software infrastructure and ensuring site reliability

— Performing software updates or/and migrations to the new hardware or in the cloud

— Constant self-development in technical skills to catch up with the latest trends in technology

— Communicating with customers in a professional manner through the ticketing system. Ensuring a timely resolution of all issues meeting or exceeding SLA’s or customer expectations

— Occasional business trips all over the world for employees who have deep system knowledge and desire to travel

— You will rapidly gain vast knowledge of:

a wide variety of software applications and other components (Docker, Cassandra, MySQL, Elastic) across companies in telecommunication industry

— Managing expectations of business customers and vise escalation to keep the situation under control

About company:

PortaOne is a software developer for communication service providers. We help telcos develop and provide new communication services (IPTV, MVNO/LTE core and another) in places where they didn’t exist before or were inaccessible due to cost. Our products are a unique combination of commercial software (high-quality support, detailed documentation, etc.) while completely open to customers (open-source code, specific tools to support client-created modifications). If using a metaphor, we provide reliable hi-tech vans for communications industries’ Wild West pioneers.

The company was founded in 2001 — and now our staff consists of nearly 250 people. We have 480+ clients (Vodafone, Ziggo, TRavelSIM) in more than 90 countries on all five continents. The demand for our products has been growing for over two decades, and the pandemic even boosted it. So if you look for a challenging job with a highly demanded product and a stable income, PortaOne is the right place!

More information about the company can be found on our website portaone.com.