Jobs at Djinni

Due to the expansion of our office in Slovakia, we are looking for a Junior C/C++ developer.
​The position involves writing highly optimized low-latency code, reverse engineering, and linux core development.

​Technologies we use: C/С++, SQL, Embedded Linux, multithreading
​The project team: 1 PM, 1 С++ backend (embedded), 1 Javascript frontend
​Communication with teams of other projects.

​Responsibilities:
​- Development of an existing solution
​- Keeping technical documentation up to date
​- Reverse engineering of protocols
​- Participation in the development of linux image for embedded systems
​- Support and development of the existing API for hardware management

​Requirements:
​- Studies in the field of electronic engineering, communications engineering, technical computer science or comparable
​- Experience with C/C++, SQL, Embedded Linux, multithreading from 2 years
​- Good knowledge of spoken and written Ukrainian

​Working conditions:
​- Full-time employment and flexible flextime model (8 a.m .- 5 p.m. or 9 a.m. - 6 p.m)
​- Extensive career and training opportunities
​- Annual salary and performance review
​- Free lunches and coffee, tea, fresh fruits, and other delicious snacks
​- Fully paid sick leave, vacation, and health insurance and other social benefits in accordance with Slovak law.​

Due to the expansion of our office in Slovakia, we are looking for a Middle C/C++ developer.
​The position involves writing highly optimized low-latency code, reverse engineering, and linux core development.

​Technologies we use: C/С++, SQL, Embedded Linux, multithreading
​The project team: 1 PM, 1 С++ backend (embedded), 1 Javascript frontend
​Communication with teams of other projects.

​Responsibilities:
​- Development of an existing solution
​- Keeping technical documentation up to date
​- Reverse engineering of protocols
​- Participation in the development of linux image for embedded systems
​- Support and development of the existing API for hardware management

​Requirements:
​- Studies in the field of electronic engineering, communications engineering, technical computer science or comparable
​- Experience with C/C++, SQL, Embedded Linux, multithreading from 3 years
​- Good knowledge of spoken and written Ukrainian

​Working conditions:
​- Full-time employment and flexible flextime model (8 a.m .- 5 p.m. or 9 a.m. - 6 p.m)
​- Extensive career and training opportunities
​- Annual salary and performance review
​- Free lunches and coffee, tea, fresh fruits, and other delicious snacks
​- Fully paid sick leave, vacation, and health insurance and other social benefits in accordance with Slovak law.​

We are a group of companies that has been operating globally since 2020. We are represented on the market by several sports and casino brands. Over the past year, we have successfully doubled our scale and received the Best Sportsbook Operator award at the SiGMA Awards. We are currently continuing to develop actively and are recruiting for the following positions/positions Affiliate Program Growth Manager

We already have a functioning partner platform — now we want to take it to the next level. Your core responsibility will be to increase the visibility and appeal of the program, making it one of the most attractive offers on the market for webmasters, affiliate networks, and traffic sources.

You’ll be responsible for SEO, branding, outreach, content, and promotion of the affiliate portal, along with managing relationships, optimizing partner quality, and monitoring fraud risks. You’ll work both externally (with affiliates) and internally (with BI, fraud, product) to ensure performance and stability.

Primary Responsibilities:

• Drive traffic and visibility to the affiliate program through SEO, content marketing, listings, and paid/organic placements
• Rework and improve the design, structure, and usability of the affiliate portal
• Launch and manage promotional campaigns, including Telegram outreach, blogs, and affiliate forums
• Handle partner acquisition and retention with focus on quality and relevance
• Monitor traffic quality, help detect and prevent fraudulent activity
• Collaborate with internal teams to improve affiliate tracking, onboarding flows, and partner communication
• Analyze metrics and continuously improve performance through feedback loops and content updates

Qualifications:

• 2–3 years of experience in affiliate marketing or traffic acquisition, ideally within iGaming
• Strong understanding of affiliate models (CPA, RevShare, Hybrid) and traffic monetization
• Experience in content/SEO strategy and working with promotional channels (Telegram, forums, blogs)
• English proficiency (B2+)
• Familiarity with CRM systems, analytics dashboards, and affiliate platforms

Additional Advantages:

• Knowledge of the iGaming ecosystem, affiliate behavior, and fraud signals
• Ability to work independently and take initiative in improving visibility and performance
• Readiness to attend affiliate conferences and build presence across industry spaces
• Experience working with international affiliates and global markets

Compensation:

Base salary + bonuses.

Arounda is a full-cycle Digital Product Design and Development agency, operating on the market since 2016. Our main clients are American and European technological companies.

We are looking for UX/UI Designer able to understand business requirements and any technical limitations, as well as be responsible for conceiving and conducting user research and translating them into sitemaps, user flows, customer journey maps, wireframes, mockups and prototypes.

What you will need to do:

• Design and develop corporate websites and landing pages;
• Work on iOS and Android app interfaces;
• Conduct UX research, including competitor analysis;
• Build information architecture;
• Develop design concepts;
• Implement adaptive and responsive design;
• Create prototypes;
• Develop UI style guides;

Required Skills:

• Experience from 2 years
• Knowledge of Figma, AI, PS
• Knowledge of interface development steps
• Practical knowledge and application of grids in work
• Understanding of the principles of adaptive and responsive layout
• Knowledge of English at the level of Upper-Intermediate and above
• Proactive and responsible
• Ability to give and accept constructive criticism
• The ability to express your thoughts clearly

Will be a plus:

• Working with large product ecosystems (complex web apps, mobile apps)
• Experience in Fintech, Cryptocurrency niches
• Creation of brand identity
• Working with animations (Adobe AE)
• Ability to present and defend your work

We offer:

• 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

  
  We look forward to your CV and a cover letter explaining why you want to work for our company. Candidates without an active link to their portfolio are not considered. A cover letter is optional and not required as part of your application.
  
  If you’ve read through our job description, start your application with the word 'spark'. This will help us understand your attention to detail.

Responsibilities:

Design high-quality and user-friendly interfaces for web and mobile. Examples: UniFi Network app, UniFi Protect app, UniFi Design System, ui.com, store.ui.com, design.ui.com and more;

Embrace a design-first approach, pushing the boundaries of design by working on new and innovative ideas;

Co-work with key stakeholders including leadership, strategists, developers (FE/FS) and other designers;

Navigate an agile work environment, iterating quickly yet maintaining high quality;

Actively participate in mulitple projects across the company and voice your ideas on design improvements.

Requirements:

Expert level UX and UI design skills;

Minimum 5 years of experience designing interfaces for web and mobile

Highly proficient in Figma;

Strong interest in working hands-on with design, considering both user experience and UIs;

You take full ownership of your tasks and responsibilites;

Genuine passion for great UX;

Excellent communication skills and highly proficient in English (written and spoken);

Candidate needs to be in Kyiv or consider relocation. 

Will be a plus: 

Knowledge about networking & wireless technologies;

Experience with Adobe After Effects or any other animation tool for interactions;

Skilled in Cinema 4D or Blender.

What do we offer:

International work environment and work with global development teams;

Excellent work conditions in an A-Class office (Horizon Park Business Center);

Compensation package matching global standards;

Flexible work hours (as required);

Paid parking, courses, training, conferences and business trips;

Medical insurance;

Free lunches;

Work on leading IT products (software and hardware)

https://www.youtube.com/c/UbiquitiInc

About project: We are focused on solving the issue of data decentralization to uphold personal privacy, data protection, and digital security. By developing fully decentralized biometrics technology, we ensure that biometric data is stored and managed securely without the risk of hacks or fraud. 

This is a full-time remote role for a Full Stack Engineer. The Full Stack Engineer will be responsible for both back-end and front-end web development, software development, and using Cascading Style Sheets (CSS). They will work on developing and maintaining the technology that powers our decentralized biometrics platform. 

Qualifications: 

Back-End Web Development and Software Development skills (at least 5 years of Python development) 

Front-End Development and CSS skills (at least 5 years of developing with React framework) 

Experience in Full-Stack Development 

Strong problem-solving and analytical skills 

Ability to work independently and remotely 

Experience with decentralized systems is a plus 

Bachelor's degree in Computer Science or related field

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

About the Role

As a Technical Support Agent, you’ll serve as a key front line resource for customers, addressing complex technical challenges related to Roon’s ecosystem, including our software (Roon, Roon ARC, and RoonBridge) and hardware products such as Nucleus and ROCK. Your mission is to ensure a seamless user experience by diagnosing and resolving problems, empowering customers with knowledge about Roon’s advanced capabilities, and exemplifying our commitment to technical excellence.

What You Will Do

- Diagnose and resolve technical issues across Roon’s ecosystem, including the Roon, Roon ARC, RoonBridge software and hardware products like Nucleus and ROCK.
- Provide expert guidance to customers through Discourse forums, Zoho, and other support channels.
- Assist users in troubleshooting issues with their audio setups, including resolving problems with third-party devices and systems integrated with Roon.

- Efficiently address network-related problems using an understanding of networking concepts, protocols, and diagnostic tools.
- Collaborate with engineering, product and quality assurance teams to escalate and resolve advanced issues.
- Maintain and enhance internal knowledge bases and external troubleshooting guides to support customers effectively.
- Identify trends in customer issues and provide actionable insights to improve Roon’s software, subproducts, and hardware.

What You Need

- Proven experience in technical support, particularly for software, hardware, or technology products.
- Strong technical aptitude with the ability to troubleshoot complex issues across Roon’s ecosystem, ensuring seamless integration of its components within diverse network and audio environments.
- Exceptional communication skills with the ability to explain complex technical concepts clearly and effectively.
- Basic familiarity with terminal commands across macOS, Linux, and Windows operating systems.
- Basic knowledge of networking concepts and troubleshooting tools for efficient resolution of network-related issues.
- Proficiency in analyzing application, OS-level, and hardware logs to diagnose and resolve technical problems.
- Strong organizational skills with the ability to manage multiple tasks independently.

What is Nice to Have

- Experience with Discourse forums, Zoho, or other similar support and customer management platforms. 
- In-depth knowledge of high-resolution audio systems, including HiFi setups, digital file formats (e.g., FLAC, DSD, MQA), and audio signal processing (DSP)
- Advanced understanding of networked configurations, streaming protocols (e.g. UPnP, AirPlay), and multi-room audio systems.

What Makes You Eligible
 

• Willingness to work remotely.
• Upper-intermediate level of English minimum.
• Successful completion of a background investigation.
• Applicants are responsible for ensuring they meet all national military service obligations, as we are unable to assist with deferral or exemption processes.

What We Offer
 

• Competitive wellness benefits for each contractor and their family after a 3 month probation period.
• 100% remote office environment.
• An inclusive and diverse work environment that fosters and encourages career development opportunities.
• Flexible work schedule with a culture encouraging work-life integration and collaboration in a global environment.
• Professional development opportunities.
• Company equipment.

Our company is engaged in the development of products in the field of lending, microcredit.

We work in absolutely different locations - in this case, we are looking for a business analyst to work on our product in Poland. Relocation, of course, is not required)

Primary requirements:

- Relevant experience;

- Excellent command of English at B2+ level/ Polish - b1+;

- Strong knowledge of SCRUM or KANBAN methodologies;

- Ability to conduct complex discussions about the work of the team with product management and stakeholders;

- Understand the technological components of the platform;

- Analyze the requirements and create a technical description of the work on the feature.

Responsibilities:

- Be responsible for delivering functionality to production, together with the team;

- Manage the backlog of the team: creating, prioritizing, analyzing and researching stories, accepting stories at the end of the sprint based on an accurate deep understanding of the functionality and needs of the business;

- Work closely with the team to achieve sprint goals;

- Build strong and friendly relationships with business users and stakeholders;

- Interact with stakeholders - clarifying requirements, understanding their level of satisfaction with the team and functionality, adjusting team actions according to feedback;

- Conduct and facilitate all team meetings;

- Analyze business requirements, work out the functionality for them, do the necessary research to confirm / refute hypotheses.

The Slovak subsidiary Ozzylogik s.r.o. has global responsibility for sales, development, and production of high-tech equipment and software.

Due to the expansion of our office in Slovakia, we are looking for a Senior C++/Qt Widgets developer.

Technologies we use: C++, Qt, Widgets, Multithreading, SQLite, Sockets

The project team: 6 С++ developers, 2 PHP and 2 Manual QA

Requirements:

- Studies in the field of electronic engineering, communications engineering, technical computer science or comparable

- Very good knowledge and experience in C++ and with library Qt Widgets

- Experience with the technologies: Multithreading, SQLite, Sockets

Working conditions:

- We offer you a сompetitive salary that meets your expectations

- Depending on specific qualifications and experience, overpayment is possible

- Full-time employment and flexible flextime model (8 a.m .- 5 p.m. or 9 a.m. - 6 p.m)

- Extensive career and training opportunities

- Annual salary and performance review

- Free lunches and coffee, tea, fresh fruits, and other delicious snacks

- Fully paid sick leave, vacation, and health insurance and other social benefits in accordance with Slovak law.

The Slovak subsidiary Ozzylogik s.r.o. has global responsibility for sales, development, and production of high-tech equipment and software.

Due to the expansion of our office in Slovakia, we are looking for a Senior C++/Qt Widgets developer.

Technologies we use: C++, Qt, Widgets, Multithreading, SQLite, Sockets

The project team: 6 С++ developers, 2 PHP and 2 Manual QA

Responsibilities:

- Developing and maintaining the existing solution on C++/Qt widgets, ensuring its functionality, performance, and stability.

- Analyzing, evaluating, and coordinating the requirements of customers and internal stakeholders to derive software architecture requirements.

- Taking charge of the design and implementation of the software architecture within the team and with development partners.

- Analyzing and optimizing existing software components and architectures in terms of performance, stability, and functionality.

- Identifying, evaluating, structuring, and describing the software requirements as well as the software elements and their internal and external interfaces.

- Writing and maintaining up-to-date technical documentation to ensure the accuracy and relevance of documentation throughout the development process.

- Providing support and guidance to foreign locations as part of the software development process, including conducting reviews.

- Estimating the effort required for software development and reporting on possible effects on costs, schedule, and functionality during development.

Requirements:

- Studies in the field of electronic engineering, communications engineering, technical computer science or comparable

- Very good knowledge and experience in C++ and with library Qt Widgets

- Experience with the technologies: Multithreading, SQLite, Sockets

Working conditions:

- We offer you a сompetitive salary that meets your expectations

- Depending on specific qualifications and experience, overpayment is possible

- Full-time employment and flexible flextime model (8 a.m .- 5 p.m. or 9 a.m. - 6 p.m)

- Extensive career and training opportunities

- Annual salary and performance review

- Free lunches and coffee, tea, fresh fruits, and other delicious snacks

- Fully paid sick leave, vacation, and health insurance and other social benefits in accordance with Slovak law.

Step into a Thriving Industry and Build Your Future!

Our client, a leading provider of international transport services in the USA, offers a career in logistics that thrives regardless of economic challenges. Known for promoting talent from within, this progressive and sustainable company is committed to teamwork, innovation, and professional growth. If you’re ambitious, forward-thinking, and eager to make an impact, this opportunity is for you.

What We Offer:

• Working hours: 3 pm — 1 am 5/2 (office work from 3PM to 8PM, then to 1AM — remotely).
• Competitive Pay: Salary + performance-based bonuses.
• Exceptional Training: Access to internal development programs.
• Opportunities for Advancement: Experience clear career progression with leadership roles available through merit.

• Career Development: Experience clear opportunities for advancement.

   

Key Tasks:

• Building strong relationships and closing deals with US-based clients.
• Collaborate with drivers to ensure seamless logistics operations.
• Conduct research to stay ahead in the transport and logistics field.

• Work closely with your team to drive collective success.

   

What We’re Looking For:

• English Proficiency: B2 level or higher.
• Strong verbal and written communication skills.
• A keen eye for detail and excellent follow-through.
• The ability to juggle multiple tasks and solve problems on the go.
• Basic computer skills (email, internet).

Your Journey Starts Here:

• Meet with Recruiter: A friendly chat to understand your goals.
• Talk to Your Future Manager.
• Join Our Welcome Day: Get an immersive introduction to our team and culture.

About the Role:
We are looking for an experienced QA Manager/Lead to establish and optimize manual and automated testing processes while ensuring seamless release management. You will play a pivotal role in the QA team, combining leadership skills with technical expertise in automation. The product is a mobile application related to electric vehicles and charging stations, so your work will directly contribute to an innovative and rapidly growing field.

Key Responsibilities:

• Understanding of Web process, mobile and desktop application testing.
• Understanding of Client-server architecture.
• Implement, optimize, and document QA processes for manual and automated testing.
• Develop and maintain the testing strategy, including automation and regression testing.
• Lead and mentor the QA team, handle task planning, and evaluate team performance.
• Integrate and configure automated testing frameworks (UI, API, Mobile, Performance).
• Collaborate closely with development, DevOps, and product teams.
• Analyze and report on product quality while ensuring critical functionality is covered with tests.

Requirements:

• 6+ years of QA experience, including 2+ years in a Lead or Manager role.
• Hands-on experience in test automation with Java/Kotlin/Groovy.
• Strong expertise in setting up CI/CD and test environments.
• Experience with the following tools and technologies:
  • Docker, Jenkins, AWS, SQS/SNS
  • Java, Gradle, Kotlin, STOMP, MySQL
  • Testing frameworks: Gatling, Playwright, JUnit5, RestAssured
• Knowledge of performance and load testing processes.
• Proven experience in release management and working with team metrics.
• Excellent communication skills with the ability to motivate and lead the team.
• English level: Intermediate+ (for team communication and documentation).

Preferred Qualifications:

• Experience with KOTLIN (KTOR)/ Java (SPRING) and performance testing.

What We Offer:

• An opportunity to influence the quality of an innovative product and processes within the company.
• A friendly team of professionals who value growth and collaboration.
• Competitive salary.
• Flexible work schedule with remote options.

• • Opportunities for learning, growth, and professional development.


https://www.youtube.com/watch?v=l-7VPqKHoag

Samsung R&D Institute Ukraine is looking for a passionate and collaborative Software Penetration Tester to join our team in Kyiv.

More specifically:

Vulnerability assessment and penetration testing of various Linux OS security components and mechanisms:

- vulnerability assessment of Samsung mobile security software: security source code review (white box) and binary analysis (black box)

- secure SDLC process support (including requirements, design security review)

- emerging threats research: new attack methods, (un)known security issues risks

Major Requirements:

- 2+ years of hands-on experience with white and black box software penetration testing and vulnerability assessment

- understanding of typical software security issues (memory corruptions, various injections, arithmetic overflows, etc.) and how to protect against them

- good experience with C/C++, scripting languages, assembly (Arm preferred)

- ability to document and describe discovered security issues

Optional Requirements:

- exploitation experience

- understanding of Linux security architecture and design flaws exploitation (privilege escalation, MAC/DAC Passover oth.).

- Rust language knowledge

- tools: experience with fuzzers, disassemblers, debuggers, assessment automation tools

- cryptography: exploitation experience (weak keys, bruteforce, weak crypto, etc.)

- experience with assessing protected solutions (obfuscated / packed code)

Working Conditions:

- official employment - GIG contract

- remote work is possible as well as work in Kyiv office

Benefits:

- competitive salary, annual salary review, annual bonuses

- paid 28 work days of annual vacations and sick leaves

- opportunity to become an inventor of international patents with paid bonuses

- medical & life insurance for employees and their children

- paid lunches

- discounts to Samsung products, services

- regular education and self-development on internal courses and seminars

- hybrid work format, working in office is required for some tasks

Samsung R&D Institute Ukraine is looking for a passionate and collaborative Sr. C/С++ Engineer to join our team in Kyiv.

You will be involved in fuzzing activities and fuzzing infra construction for Samsung flagship devices in use by hundreds of millions of users worldwide.

If you love working directly on consumer-facing products we are glad to meet you at our team in Samsung R&D Institute Ukraine. 

More specifically you will:

• apply various fuzzing technologies (AFL, libfuzzer mostly) to reveal issues in system & middleware codebase
• be involved in all fuzzing stages (harness development, corpus, custom mutators, grammar, dependencies mock, crash de-duplication and prioritization, fuzzing orchestration and monitoring)
• research on advanced fuzzing techniques for cases where source code is not available or on-device fuzzing is too slow (emulation, cross-compilation oth.)
• participate in research activities and strategic prototyping for future Samsung products

Major Requirements:

• C and C++ are required at the level, sufficient to find wrong coding practices, give suggestions to other developers and develop glue code
• familiar with secure coding (in C and C++) and security hardening techniques (sanitizers, static/dynamic analysis tools)
• Linux software build customization experience (strong bash and configure/make, toolchain fine-tuning, cross-compilation)
• relevant education (at least Bachelor degree in computer science or similar)
• good technical English (writing / reading technical docs, communication with overseas partners)

Optional Requirements:

• fuzzing experience: AFL and its spin-offs, libfuzzer, HonggFuzz, protocol fuzzing, binary fuzzing, cross-compiled fuzzing, Linux Kernel fuzzing, Android software fuzzing
• C and C++ security code review experience
• experience with security automation tools and processes (static/dynamic analyzers, SAST/DAST)

Working Conditions:

• official employment - GIG contract
• remote work is possible as well as work in Kyiv office

Benefits:

• competitive salary, annual salary review, annual bonuses
• paid 28 work days of annual vacations and sick leaves
• opportunity to become an inventor of international patents with paid bonuses
• medical & life insurance for employees and their children
• paid lunches
• discounts to Samsung products, services
• regular education and self-development on internal courses and seminars

Hey! We are Kultprosvet — the team of web and mobile software developers that cares.

Now we’re expanding and welcome talented Senior Full-Stack Developer to join our team.

Requirements:

• You have 6+ years of full-stack development experience;
• You’ve built and maintained beautiful and scalable user interfaces that have reached a large audience using React;
• You have a track record of delivering scalable and reliable backend solutions and implementing REST API architecture. You are comfortable working with APIs and have a solid understanding of server-side languages and frameworks such as Node.js Python or Django;
• You can readily learn most technologies as you go. To you, technologies are about tools and tradeoffs, not an ideology;
• You care about the business implications of anything you build. You’re not just going after cool stuff — you understand the balance between craft, speed, and the bottom line;
• You are hungry to build products people love and are passionate about productivity and time;

• Bonus: You’re fluent with Typescript, Django, Postgres, Docker, K8S, and AWS.

   

Responsibilities:

• Be responsible for building new product features from the ground up: Shape. Design. Build. Think of features to improve team collaboration and focus;
• Create a product that will redefine time management: Because we are dealing with the most scarce resource on earth — time, we have the chance to create the most leveraged and useful software of the last (or next) decade. You can help us realize this goal;
• Tackle our most interesting and impactful problems: Our team is small, and people wear many hats. You’d jump between product, development, and process — participating in every phase from design to implementation. Absolutely no boredom;
• Join us at a magical time: We’ve been exploring our product-market fit, which means you’ll have a major impact. You’d join at the perfect time to shape what we build and how we grow;

We’ve put the developer experience in the front and center to allow you to do your best work frictionlessly. We mastered and tailored state-of-the-art methodologies such as Github flow, full CI/CD, and dynamic preview environments early on.

We offer:

• Challenging tasks and projects for professional growth;
• Opportunity to work remotely or in a comfortable office in Dnipro;
• Friendly team workspace and healthy environment;
• Competitive salary;
• Paid vacation and sick leaves;
• Medical insurance.