Jobs at Djinni

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.

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.

About Us:

We are an IT recruitment agency with over 7 years of experience, helping IT companies in Ukraine and Europe find and hire the most talented specialists. Our team of 10 professionals specializes in high-quality recruitment and headhunting, providing the best service for our clients. Among them are both large companies and promising startups.

Today, we are actively expanding our presence in European markets as well as in Ukraine. We are looking for an ambitious specialist to develop these directions. If you combine the talents of a sales manager, account manager, and lead generator, we are looking for you!
 

Key Responsibilities:

• Actively searching for new clients in Ukraine and Europe for IT recruitment services.
• Working with CRM systems, LinkedIn, Facebook, email marketing, and other channels.
• Creating personalized emails for potential clients and leading them to the stage of phone contact.
• Managing relationships with existing agency clients.
• Conducting calls and presentations for clients: gathering requirements, discussing vacancies, and negotiating cooperation terms.
   

Your Competencies and Skills:

• Experience in B2B sales.
• Ability to find and attract clients via LinkedIn.
• Strong presentation and negotiation skills.
• Experience working with cold and warm databases.
• High level of English proficiency (Upper-Intermediate or higher).
   

Will Be a Plus:

• Understanding of IT recruitment processes as a service.
   

We Offer:

• Competitive salary with bonuses for attracting new clients and successfully closing vacancies.
• Opportunities for professional growth and training.
• A comfortable work environment and team support.
• Career growth.
• 18 working days of paid vacation.
   

Bonus System and Salary Growth:

• Bonuses for each new client.
• Additional bonuses for successfully closed vacancies with active clients.

Join our team to become part of a successful business that transforms the IT recruitment market!

We’re looking for a Project Manager to collaborate with our Design Director, fellow designers, and developers in crafting memorable, engaging storytelling websites and microsites. 

Position: Part-time or Full-time (both options are welcome).

Experience Required: Minimum 5 years

Must-Have:

• Recent experience working in a design agency, delivering website projects for the U.S. market.
• Experience working with interactive websites (websites with animations, understanding principles, possibilities, and limitations);
• Strong communication skills;
• Being a team player;
• Thinking outside the box;

• Fluency in English.

   

Who we are:

We help our clients tell stories on their websites, inspiring users to connect. From company websites to brand activations, we find unique solutions to build memorable, interactive experiences that wow people.

Headquartered in LA, with part of our team also based in Europe, we work with startups and well-known big brands across almost all industries, from fintech and healthcare to retail and web3.

Established in 2018, we’ve always believed that people are what matter most. We care deeply about our team, our clients, and the projects we get to bring to life together.

Explore our website and Labs, where we innovate and create future web experiences.

https://noomoagency.com/

https://labs.noomoagency.com/

We’re hiring a Full stack developer, who brings his professional skills and passion to deliver awesome enterprise solutions.

✅ Knowledge of English at least Upper-Intermediate level.

At least 3 years of experience in commercial:

📌Node.js

📌Nest.js

📌React.js

📌Next.js

📌Azure

Commercial experience with the following technical stack:

TypeScript, Azure, Redux, Express.js, NestJS, REST API / GraphQL, PostgreSQL, CSS, SASS, SCSS.

What we can offer:

Full-time flexible working schedule;

Comfortable, cosy, and well-equipped office;

Modern working place MacBookPro;

18 business days of paid vacation / 20 paid sick leaves / public holidays in Ukraine.

English lessons

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has a position for Junior Sales Manager.

You’re good with:

• at least Upper-Intermediate English, speaking and writing skills;

• client-oriented approach;

• understanding of IT sphere (Software Development process, modern technologies etc.);

• basic knowledge of sales techniques (B2B market).

It will be a plus:

• previous lead generation experience;

• previous experience as sales manager.

• previous experience as customer support.

Your responsibilities will be:

• Search for new customers;

• Identify prospective clients needs and communicate with the customer via email and LinkedIn;

• Manage full sales cycle;

• Prepare proposals for the potential customers;

• Work closely with the pre-sales team.

What the company offers:

• Constant and interesting work with foreign clients;

• Flexible working hours;

• Compensation English language courses;

• Annual paid 30 days vacation and paid sick day.

PIN-UP Global is an international holding specializing in the development and implementation of advanced technologies, B2B solutions and innovative products for the iGaming industry. 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 Middle and Senior Golang Developers to join our teams!

Requirements:

- 3+ years of experience with Go programming language.

- Proven ability to design and implement scalable and reliable software solutions.

- Strong understanding of event-driven architecture.

- Experience with containerization and orchestration tools like Docker and Kubernetes.

- Hands-on experience with RDBMS and/or NoSQL databases

- Strong understanding of event-driven architecture  + hands-on experience with Event Brokers

- Experience with observability - implementing logs, metrics, and tracing

- Proficiency in working with cloud platforms such as Google Cloud Platform (GCP) and/or AWS.

- Proficient in using Git, GitLab, and GitLab CI for source control and continuous integration.

- Excellent problem-solving abilities.

- Strong time management and organizational skills to handle multiple tasks effectively.

- Upper-intermediate level of English, both written and verbal.

Nice to have:

- Familiarity with the Twelve-Factor App methodology.

- Knowledge of Cloud Events and GitOps practices.

Responsibilities:

- Develop high-performance, testable, and maintainable code to deliver new functionality.

- Conduct code reviews to ensure quality, maintain standards, and share knowledge across the team.

- Integrate industry-leading third-party services into the platform.

- Propose and implement innovative technical initiatives to improve systems and processes.

Why Join Us:

- Flexible remote or hybrid working format based on your location.

- No Time Trackers: We value trust and focus on results.

- Career growth, professional development, regular performance reviews.

Hiring Steps: HR Interview > Technical Interview (no test task, no live-coding needed)  > Reference check > Offer

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
🦄 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

CRMOZ — We have been an official partner of Zoho Corp. for over 9 years, and we have clients all over the world. We implement, integrate, and support our clients with all issues related to Zoho Software and many more. Now we’re looking for a Junior IT Sales Manager.

Who you are:

• A desire to develop in IT Sales / Business Development;
• Experience of working with Upwork as a sales manager (a plus);
• Experience with LinkedIn Sales Navigator (a plus);
• Upper intermediate or advanced level of English, both written and spoken;
• Curiosity, ability, and willingness to learn something new every day;
• Flexibility in communication with clients, ability to listen, understand, and connect;
• Ability to write personalized and engaging proposals;
• Multitasking abilities, working in a fast-paced environment;
• Attention to detail;
• Excellent time management skills.

What you will do:

• Find new projects on Upwork that fit our skills and rates;
• Handle incoming requests from potential customers;
• Write effective and detailed proposals;
• Provide initial consultation to the customer regarding our services and how we can solve their problems;
• Present rough estimates to ensure we fit clients’ budgets (with assistance from our technical team);
• Maintain further communications and conduct negotiations with the client, upsell additional services and products;
• Bridge the communication gap between the team and the client, ensuring consistent communication and timely feedback.

We offer:

• Full-time work, remote schedule;
• Salary rate plus sales bonus %;
• Free English courses;
• Mentoring and opportunities for growth within the company;
• Paid vacation and sick leave.