Jobs at Djinni

We have built a global connection platform that’s been thriving since 2019: today it brings together 600K MAU and 25K DAU, with around 7K new registrations every day. People across the US, Canada, UK, Europe, and the Middle East choose us daily to make real connections that matter.

Our clear ambition is to outperform competitors and become Top-1 in our category, and we are moving fast to make it happen. We are building the future of human connection through:

• AI-powered matching that actually works

• Scalable revenue streams, exploring streaming, new monetization models, and acquisition channels that truly convert

About your role: This role is for a Senior Android Engineer who wants to work with real scale, meaningful technical complexity, and visible product impact. You’ll build a mobile product used by 1M+ users across Tier-1 markets, with full technical ownership over features and architectural decisions. You’ll join a mature Android team with strong engineering standards, advanced code review, a well-established CI/CD setup, and a codebase evolving toward Kotlin Multiplatform.

In this role, you will

• Own and deliver Android features end to end, from decomposition and technical design to implementation and release
• Continuously improve the product through regular technical enhancements and refactoring
• Collaborate closely with other Android engineers, backend developers, and product teams
• Participate in advanced code reviews and contribute to shared engineering standards
• Work within a well-established CI/CD ecosystem with testing, code quality checks, and conventions
• Prepare and adapt the project architecture for future KMP integration

It’s all about you

• 4+ years of commercial experience in Android development
• Strong understanding and practical application of SOLID principles
• Production experience with Kotlin and KSP
• Experience working with Clean Architecture
• Hands-on experience with modularized Android projects
• Experience with MVI and the ability to design solutions based on product requirements
• Strong knowledge of MVVM
• Practical experience with Jetpack Compose and understanding of the composition process
• Confident use of Kotlin Coroutines
• Experience with Koin for dependency injection
• Skills in application profiling and performance optimization
• Experience working with Google Billing services

Will be a plus

• Experience or interest in Kotlin Multiplatform
• Experience with CI/CD pipelines and optimization processes

What we offer

Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Maternity recovery support allowance
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule 
• Modern equipment or depreciation of your own tools

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
   

Hiring process

• Intro call with recruiter
• Technical Interview
• Final Interview
• Reference check
• Offer

Our client is an international product-based IT company specializing in the iGaming industry. Founded in 2014, the company has been successfully operating on the market for more than 11 years, bringing together a team of 390+ professionals. Starting as a leader in the CIS region, the company is now actively expanding on a global scale.

We are currently looking for a Middle/Senior Media Buyer to join the media buying team and work with scalable traffic across different GEOs and tiers.

📋 Key responsibilities and your contribution:

— Launch, manage, and scale Facebook advertising campaigns across Tier 1 / Tier 2 / Tier 3 GEOs.

— Full ownership of traffic performance and financial results, including PnL responsibility.

— Analyze and optimize key performance metrics: ROI, CR, CTR, CPM, CPA, PnL.

— Work closely with offers, creatives, agencies, and internal teams to improve campaign efficiency.

— Test and adapt strategies based on changes in GEOs, offers, platforms, and market conditions.

— Identify bottlenecks in funnels and processes, propose and implement optimization solutions.

— Maintain clear communication, task-setting, and feedback loops within the team.

— Take an active, hands-on role in both arbitrage and product-oriented media buying directions.

📚 Your qualifications:

— 3+ years of experience in media buying / traffic arbitrage.

— Deep understanding of Facebook Ads ecosystem and traffic acquisition mechanics.

— Proven experience managing monthly budgets from $50,000.

— Strong analytical mindset and confidence working with performance metrics and profitability models.

— Hands-on experience with analytics and tracking tools such as Power BI, Google Sheets, Voluum, Binom, Keitaro (or similar).

— Experience working with offers, creatives, and external partners (agencies, vendors).

— High level of responsibility for results and readiness to work with CRM and PnL models.

— Strong communication skills and ability to give and receive constructive feedback.

— Critical thinking, initiative, flexibility, and adaptability in a fast-changing environment.

Benefits:

⭐ Days of recovery: 20 paid vacation day per year and unlimited sick leave days.
⭐ Health: corporate medical insurance, a company psychologist and a Cafeteria of Benefits for personal wellness choices.
⭐ Education: a variety of foreign languages course for you to choose from. Also we are open for your development and you can choose different courses /training for improving your skills.
⭐ Compensation: additional benefits that can be used according to company policy, e.g. paid business trips, international conference opportunities, lunch perks at our offices etc.
⭐ Work Environment: work remotely or from one of our offices in Cyprus, Portugal, Poland, equipped with the equipment you’ll need for success.

⭐ Full freedom and hands-on involvement: opportunity to work across multiple directions — arbitrage, product media buying, various GEOs and tiers — without being locked into one narrow scope.

An international IT holding with 11+ years in the market and a team of 390+ employees is scaling its Media Buying division and is looking for a Team Lead Media Buyer to take responsibility for PnL, the team, and the systematic growth of the department.
 

🔥 Responsibilities:

• Manage a team of buyers (3+ people): task setting, KPI control, and team development
• Launch and scale Facebook campaigns across Tier 1–3 GEO
• Take full responsibility for performance and PnL of the department
• Work with budgets of $300K – $1M+ per month
• Build processes: KPIs, reporting, workflows, onboarding, and training of new buyers
• Optimize key metrics: ROI, CR, CTR, CPM, CPA, LTV
• Scale profitable campaigns and implement new strategies
• Collaborate with creative, analytics, and product teams
   

✅ Required experience:

• 1–2+ years in a similar role
• Managing monthly budgets of $300K – $1M+
• Experience managing a team of buyers (3+ people)
• Deep expertise in Facebook Ads
• Experience in iGaming / Gambling verticals
• Understanding unit economics and the impact of traffic on retention and LTV
   

💰 We offer:

• Base + bonus of the team’s net profit
• Unlimited budgets for scaling
• Top-tier and private offers (including the holding’s own products)
• Remote work or offices in Cyprus / Portugal / Poland
• 20 days paid vacation + unlimited sick days
• Health insurance
• Budget for training and professional development
• Opportunity to influence the strategic growth of the department

Innoware is a leading IT consulting company, Microsoft Solutions Partner, certified in cyber and information security (ISO/IEC 27001). We help businesses enhance operational efficiency and ensure data security by implementing Microsoft ERP and CRM systems, Power Platform solutions, and delivering secure cloud IT infrastructure.

For almost 25 years our team has successfully completed more than 500 projects in Ukraine and across 17 other countries. Our clients include well-known companies such as Ciklum, Deloitte, Datagroup, OKKO, KERNEL, Metinvest, the American Chamber of Commerce in Ukraine (ACC), SOS Children's Villages, and many other valued partners.

We are looking for a Systems Engineer with hands-on experience in Microsoft Cloud Solutions and a strong interest in further developing expertise in this area.

Key stack:

• Cloud Solutions: Microsoft Azure, Microsoft 365.
• Server products: Windows Server, SQL Server.
• Automation: programming in PowerShell.

Key tasks

External/client tasks:

• Participating in projects of implementation, configuration, upgrades of Microsoft cloud services and server software – developing and implementing solutions in accordance with clients' business needs and the functionality of Microsoft solutions. The main geography of clients is Ukraine and the EU.
• Participating in meetings with clients, presenting and discussing solution options.
• Maintaining and supporting client infrastructure.
• Participating in writing project documentation and technical specifications.

Internal support (in different periods it takes from 30 to 50% of the time):

• Maintaining the internal IT infrastructure.
• Implementing technical solutions based on security best practice.
• Conducting IT onboarding and offboarding of colleagues, including preparation of office equipment.

Training and certification: with us, you'll learn the latest versions of Microsoft cloud services and get the correspondent international certification.

Qualification:

• At least 2 years of experience at an engineering position – Systems Engineer, Data Engineer, System Administrator, etc.
• Experience with Microsoft on-premises and hybrid infrastructure: Windows Server, Active Directory DS, Exchange Server, IIS, RDS, GPO, SQL Server.
• Experience in administering Microsoft 365 and Microsoft Azure (SharePoint Online, Exchange Online, Teams, Microsoft Defender, Intune, Azure VM services, Azure VPN, Azure AD Connect, etc.).
• PowerShell programming skills.
• Understanding of basic information network technologies: DNS, DHCP, VPN, IP stack.
• Ability to process and close technical requests from users.
• Experience in writing technical documentation.
• English: Intermediate / B1 or higher, including spoken; fluency in Ukrainian.
• University degree (technical or IT).

Nice to have, but not a mandatory requirement: 

• Experience in ensuring the security of IT infrastructure.
• Experience or understanding of the basics of Power Automate and Azure Automation.
• Python and/or JS programming skills.

• Microsoft certificates.

   

Soft skills: responsibility, consistency, initiative, interest in professional development.

We offer you:

• Conditions for professional development and training.
• Microsoft certification at the company's expense.
• Various and challenging tasks, including non-standard and new ones even for us.
• Work with solutions from the leading international vendor – Microsoft.
• Participation in ensuring compliance with ISO 27001 together with the Information Security Manager and other teammates.
• Our values and corporate culture: Innoware is an environment of open, professional communication, teamwork, honest relationships, and mutual trust. We support each other in both work and life. We hold a pro-Ukrainian stance, have not worked with russian companies since 2014, and actively support the Armed Forces of Ukraine.

Working conditions:

• Full remote format with the opportunity to work and meet with colleagues at Innoware’s Kyiv office – we’ll be happy to see you whenever you choose to come.
• Everything for work-life balance: paid vacation and sick leave (we know it’s obvious, but we want you to be sure), additional days off for selected public holidays. We’re dedicated to our work, but we also take time to rest 😉.
• Permanent full-time contract.
• Competitive remuneration, revised according to your performance.

If you are motivated to grow and develop in cloud technologies, we invite you to apply with your detailed CV in Ukrainian or English. We’ll contact you if the information in the CV meets the qualification requirements.

Join us, develop your skills and implement projects together with the experienced Innoware team! 

Find out more about Innoware: https://innoware.com/about/ 

Discover more Innoware vacancies: https://innoware.com/career/ 

Innoware is a leading IT consulting company, Microsoft Solutions Partner, certified in cyber and information security (ISO/IEC 27001). We help businesses enhance operational efficiency and ensure data security by implementing Microsoft ERP and CRM systems, Power Platform solutions, and delivering secure cloud IT infrastructure.

For over 24 years our team has successfully completed more than 500 projects in Ukraine and across 17 other countries. Our clients include well-known companies such as Ciklum, Deloitte, Datagroup, OKKO, KERNEL, Metinvest, the American Chamber of Commerce in Ukraine (ACC), SOS Children's Villages, and many other valued partners.

Demand for Innoware’s services and Microsoft solutions continues to grow – especially in Ukraine, where many businesses are transitioning away from 1C and other russian-origin systems. To support this growth, we are expanding our project team and inviting candidates to join us as a Microsoft Dynamics 365 SCM (Logistics) Consultant at Middle or Senior level.

Key activities:

• Participation in D365 F&SCM implementation and development projects with responsibility for solution design within the logistics domain.
• Continuous development of expertise through work with diverse business scenarios, complex cases, and modern capabilities of the D365 platform.

Key responsibilities:

• Working with clients to analyze logistics business processes, define target solutions, and align them within the D365 SCM framework.
• Configuring and adapting standard D365 SCM functionality according to customer business requirements.
• Preparing and aligning project documentation together with clients.
• Estimating effort and timelines for assigned tasks.
• Preparing functional specifications for the development team and collaborating with developers during implementation.
• Executing user acceptance testing to ensure the delivered functionality meets business needs and expectations.
• Supporting customers during UAT, deployment of new functionality, and Go Live.
• Mentoring less experienced specialists.
• Participating in planning and controlling data migration processes.
• Integrating D365 SCM with other systems and applications.
• Ensuring quality control of tasks at different stages of the project.

Qualification:

• At least 3 years of experience implementing logistics modules of D365 F&SCM / F&O in a Consultant or Analyst role.
• Deep knowledge of standard functionality of Inventory management, Warehouse management, Procurement and sourcing modules in D365 F&SCM / F&O.
• Understanding of all stages of an ERP implementation project.
• Strong understanding of logistics business processes (inventory management, warehouse operations, procurement) and their automation in D365 F&SCM / F&O.
• English proficiency at Upper‑Intermediate level or higher; fluency in Ukrainian.
• Nice to have: Microsoft certification; experience configuring Power BI.

Soft skills:systematic thinking, teamwork, strong communication skills, focus on results and high quality, and a commitment to continuous professional development.

We offer:

• Dynamic work and diverse tasks in a growing D365 F&SCM team.
• Participation in projects for Ukrainian and international clients, with English language practice.
• Knowledge sharing with experienced colleagues, participation in internal initiatives, and professional discussions.
• Conditions for continuous professional development, career growth, and advanced training, including international Microsoft certification and support in obtaining it.
• Career paths toward System Architect, Project Manager, or Team Lead, depending on your professional interests.
• Our values and corporate culture: Innoware is an environment of open, professional communication, teamwork, honest relationships, and mutual trust. We support each other in both work and life. We hold a pro-Ukrainian stance, have not worked with russian companies since 2014, and actively support the Armed Forces of Ukraine.

Working conditions:

• Full remote format with the opportunity to work and meet with colleagues at Innoware’s Kyiv office – we’ll be happy to see you whenever you choose to come.
• Everything for work-life balance: paid vacation and sick leave (we know it’s obvious, but we want you to be sure), additional days off for selected public holidays. We’re dedicated to our work, but we also take time to rest.
• Permanent full-time contract with competitive remuneration.
• A grade‑based system with regular salary reviews based on your qualifications, performance results, and professional development.

We would be happy to get to know you and discuss potential cooperation.

Please apply with your CV in Ukrainian or English. We will carefully review your application and contact you if your experience and qualifications match the role.

We invite you to collaborate with us to deepen your expertise and work on meaningful projects together with the experienced Innoware team.

Find out more about Innoware: https://innoware.com/about/ 

Discover more Innoware vacancies: https://innoware.com/career/ 

We help businesses unlock millions in efficiency through AI, automation, and intelligent transformation.

We have strong ideas.
We have strong clients.
We are scaling fast.

Now we need someone to make the world see it.

We are hiring a Brand Content Designer to build and elevate the UAI Labs brand.

This is not a corporate marketing job.
This is not a management role.

This is a hands-on builder role.

You will take complex AI and automation concepts and turn them into:

• Clear, powerful messaging
• Structured, easy-to-understand presentations
• Beautiful, premium visual materials
• Thought leadership content
• High-impact GTM assets

You will work directly with the leadership team to shape how the company is perceived in the market — and create materials yourself.

Responsibilities (hands-on execution)

Brand & Design

• Design and create client presentations, pitch decks, and materials
• Improve decks, proposals, and documents (structure + visuals)
• Ensure everything looks premium and consistent

Website & Digital Presence

• Write and structure website messaging
• Make our IP clearly visible
• Improve clarity, positioning and conversion

Content & Thought Leadership

• Write and format blogs, whitepapers and case studies
• Help build executive LinkedIn presence
• Repurpose content across channels
• Support SEO strategy

Sales Enablement

• Design and write one-pagers and GTM materials
• Turn complex ideas into simple, commercial narratives

Must Have

• Fluent English
• Clear understanding of branding principles
• Ability to simplify complex technical topics
• High attention to detail
• Strong visual design skills and understanding of design principles
• Ability to translate company goals into clear visual and written communication
• Strong written and verbal communication skills 
• Ability to use research and user insights to inform content and design decisions
• Strong portfolio (presentations, decks, documents, or visual materials)

Important

This is a hands-on role.

If your previous experience was mostly:

• managing agencies
• coordinating stakeholders
• or leading without hands-on execution

this role is likely not a fit.

We are looking for someone who creates, not coordinates.

Nice to Have

• Experience in AI, tech, consulting or financial services
• SEO knowledge
• Experience building personal brands

Why Apply?

Because this is not a maintenance role.

You will:

• Build a brand from the inside, not manage an agency from the outside
• Work directly with decision-makers
• Shape the voice of a growing AI consultancy
• See your ideas implemented quickly
• Have autonomy and creative ownership
• Grow as the company scales

Keymakr

We are looking for a passionate Software Engineer to develop, innovate, and support Keylabs.AI, a data labeling platform. This role is critical to our mission and offers the opportunity to make a significant contribution to the AI ​​industry.

Qualifications

Education:
Bachelor's or Master's degree in Computer Science.
Experience

At least 5 years of full-time experience in software development.
Experience in team leadership roles would be an advantage.
Required: At least 2 years of experience in client-side web development using JavaScript, HTML, and CSS.
At least 2 years of proven experience with MongoDB and SQL databases, including writing complex SQL queries involving JOIN operations.
Hands-on experience with production systems and high-availability architectures.
Experience with automation, infrastructure as code, and GitOps.
Experience with Python-based machine learning tools such as PyTorch, Pandas, NumPy, etc.

Technical Skills:

Deep understanding of design patterns and ability to effectively apply them in various scenarios.
Knowledge of C or C++ is required.
Excellent Python proficiency with at least 3 years of hands-on experience.
Familiarity with C# and/or Java.
Excellent Node.js / JavaScript proficiency.
Deep knowledge of modern web frameworks (React, Angular, Vue, Django, Flask or similar).
Experience and knowledge of Docker and cloud platforms (AWS / GCP / Azure).

Requirements: 

Knowledge of Linux, Linux tools, network technologies and system security (main daily working platform is Linux).
Knowledge related to training and using machine learning models.
Ability to analyze and solve complex algorithmic problems.
Ability to interpret and understand complex technical specifications.

Working Schedule

• Willingness to occasionally work non-standard hours to support critical releases, incidents, or customer needs.

English Language

Advanced level of English proficiency (C1).
 

Keymakr is a leading provider of high-quality data annotation services for machine learning and artificial intelligence applications. We specialize in delivering accurate and scalable annotation solutions that empower businesses to develop cutting-edge AI models. Our team is dedicated to excellence, innovation, and customer satisfaction.

We are looking for a motivated Junior Python Software Engineer to help build, maintain, and improve internal tools and services. This role offers a great opportunity to grow your technical skills while contributing to real-world projects and automation processes.

Technical Skills:

• 2+ years of experience in Software development  
• 1+ years of practical experience with Python.
• Knowledge of RESTful API design and implementation.
• Experience in scripting and automating workflows, including working with APIs for task automation.
• Understanding of software design principles, particularly SOLID.
• Basic knowledge of Linux systems and familiarity with the Linux command line.
• Proficiency with version control systems (e.g., Git, GitHub, Bitbucket).
• Practical experience with web frameworks like Flask, Django, or FastAPI.
• Familiarity with Celery, Redis, and RabbitMQ.
• Hands-on experience with containerization tools like Docker.
• Skilled in writing unit and integration tests.
• Knowledge of cloud platforms (e.g., AWS, Azure, GCP)

Problem-Solving Skills:

• Strong analytical thinking and problem-solving capabilities.
• Ability to debug, troubleshoot, and optimize code effectively.

Nice-to-Have Skills:

• Basic understanding of frontend technologies (HTML, CSS, JavaScript).
• English at an intermediate level or higher (to read and understand technical documentation).
• Familiarity with Agile development methodologies.
• Understanding of CI/CD pipelines and DevOps practices.

Responsibilities:

• Developing and maintaining tools and applications for the company’s infrastructure.
• Designing, supporting, and maintaining internal services.
• Transforming and storing data in various formats (e.g., JSON, XML, CSV).
• Automating workflows using APIs.
• Researching, configuring, and integrating third-party software into company processes.
• Providing general IT support and troubleshooting.

About Keymakr

• Keymakr specializes in end-to-end dataset preparation, including video and image annotation and labeling for AI projects.
  We take a personalized approach, delivering customized solutions tailored to each client’s needs.
   
• Our strong in-house R&D team develops and adapts annotation tools for every client, allowing us to successfully handle even the most complex requirements.

About the Role:

• We are looking for a Data Management Specialist to manage, process, and maintain large volumes of data and media assets used in AI and technology projects.
   
• This role focuses on ensuring data integrity, consistency, and availability while optimizing workflows through automation and close collaboration with cross-functional teams.
   

Key Responsibilities:

1. Manage and manipulate data using Linux file systems and native OS tools;
2. Work with media files, including video formats, codecs, resolution, and frame rate (FPS);
3. Verify data integrity using checksum and verification tools;
4. Pack and unpack large data archives efficiently;
5. Automate data-related workflows using scripting languages;
6. Prepare, structure, and maintain datasets in structured formats;
7. Maintain cloud-based data storage and perform data migration;
8. Collaborate with Project, QA, and Technical teams to ensure smooth data operations;
9. Clearly and consistently document workflows, processes, and task updates.

Technical Skills:

1. Strong knowledge of Linux file systems and administration (Ubuntu/Debian, 2+ years);
2. Experience with Windows OS administration;
3. Proficiency in Python and Bash / Shell scripting;
4. Experience with archive management tools for large datasets;
5. Knowledge of checksum verification tools (md5sum, sha256sum);
6. Tools for checking video properties, codecs, and formats;
7. Solid knowledge of JSON and CSV formats;
8. Experience with cloud storage platforms: AWS S3, Google Cloud Storage, or Azure;

9. Familiarity with JIRA, Slack, Confluence, and Google Docs.

    

Nice to Have:

1. Experience with point clouds / 3D data;
2. Strong understanding of complex technical specifications;
3. Experience working with large-scale datasets;
4. English & Communication;
5. English level B2 (Upper-Intermediate) or higher;
6. Ability to read and understand technical documentation and project requirements;
7. Clear written communication in English (reports, updates, documentation);
8. Participation in English-language meetings when required. 

J-VERS is a programmatic job advertising agency that helps employers find the right candidates in any industry by optimizing the hiring process. Founded in 2023, the company has grown 5x, building a fully remote team that serves over 150 enterprise clients across the US and EU through AI-powered advertising technology.

We’re transforming how companies hire — and we’re just getting started. Want in? Join us as the Sales Researcher and help shape the future of recruitment. You’ll be helping our customers achieve their hiring goals 🌟

What You’ll Be Doing:

• Own lead sourcing by identifying and building high-quality prospect lists aligned with the Ideal Customer Profile (ICP) using LinkedIn, Google, and other research tools;
• Enrich and qualify leads by validating contact details and adding firmographic and role-based insights (company size, industry, needs) to prioritize sales-ready prospects;
• Keep our CRM clean and reliable by proactively removing duplicates, updating outdated records, and maintaining strong data hygiene;

• Partner closely with SDRs to support outbound campaigns, share insights, and deliver clear weekly and monthly performance reports that drive pipeline growth.

   

You are our ideal candidate if you have:

• Upper-Intermediate English (B2) or higher;
• Hands-on experience with Google Spreadsheets;
• Ability to efficiently collect, analyze, and organize large volumes of data with a high level of accuracy;

• Strong analytical, research, and communication skills, combined with high productivity and exceptional attention to detail.

   

It would be a plus if you have:

• Background in sales research, outreach, lead generation, or prospecting;
• Experience with LinkedIn, including Sales Navigator fundamentals;

• Familiarity with research methodologies and common data sourcing and email discovery/validation tools, such as PhantomBuster, Snov.io, Hunter, or similar platforms.

   

You’ll thrive at J-Vers if you are:

• Self-motivated and comfortable with autonomy;
• Passionate about using technology to solve real problems;
• Open to collaboration and knowledge sharing;
• Results-oriented and focused on impact;
• Curious and committed to continuous learning.

Why Join Us:

Work Without Limits:

• Remote-first team with no location limits;
• Flexible 8-hour workday;
• Flat structure with direct access to leadership;
• Full set of equipment provided for your comfortable work.

Get Rewarded & Supported:

• Competitive compensation with transparent salary bands;
• 24 vacation days + 20 paid sick days + 4 no-doc sick days + company-wide one-week break at year-end.

Endless Opportunities to Grow:

• Clear growth paths from Junior to Senior;
• Work with global clients (US & EU);
• Culture of feedback, mentorship, and constant learning.

Hiring Process:

1. Intro call with a recruiter
2. Values-based interview
3. Test task
4. Final interview with the team
5. Reference check
6. Job offer 🎉

At J-Vers, you’re not just filling a job — you’re joining a mission. We’re building something extraordinary where technology and humanity combine to transform hiring. Flex your skills. Expand your impact. Shape the future of global hiring.

Required:

Senior Java Backend Engineer, English B2+

Full-time, EU working hours

Location: EU / Ukraine

Duration: Long-term (9+ month)

Responsibilities

Design and develop scalable backend services and microservices in Java/Spring Boot

Build and maintain blockchain integrations across multiple networks (Bitcoin, Ethereum, Solana, TRON)

Develop and support custodial wallet systems

Ensure reliability, security, and performance of blockchain-related infrastructure

Collaborate with cross-functional teams on architecture and technical decisions

Participate in code reviews and knowledge sharing

Requirements (Must-have)

Strong hands-on experience with Java and Spring Boot

Proven experience building microservices architectures

Hands-on experience with blockchain integrations (Bitcoin, Ethereum, Solana, TRON)

Experience with custodial wallet systems

English B2+

Nice to Have

Experience with additional blockchain protocols or Web3 ecosystems

Familiarity with security best practices in crypto/fintech environments

Tech Stack

Java, Spring Boot, Microservices, Bitcoin, Ethereum, Solana, TRON, Custodial Wallet Systems

Hiring Process

Intro call

Technical discussion

Offer

Start: ASAP

Description

About Project:

Comprised of the Company’s international business units and various direct-to-consumer streaming services, Media & Entertainment Distribution department aligns technology, media distribution and advertising sales into a single business segment to create and deliver personalized entertainment experiences to consumers around the world. 

GL team will be concentrated on building AdTech platform for our customer.

About Company:

Leading diversified international family entertainment and media enterprise with the following business segments: media networks, parks and resorts, studio entertainment, consumer products and interactive media. 

Requirements:

• Readiness to work till 12 AM Kyiv time, 11 PM Poland time
• 4+ years of developing and bolstering automated QA systems and associated test strategies;
• Experience working with business-critical customer-facing applications (user interfaces, APIs, and back-end services);
• Excellent communication skills with emphasis on writing detail-oriented documents and communications;
• Strong understanding of object-oriented programming concepts;
• Strong understanding of web UI and services automation testing;
• Strong experience with Python, BDD (behave);
• Knowledge in AWS, CI/CD;
• Experience with AQA reporting tools;
• Strong experience with web application testing tools (Selenium), API testing;
• Deal well with ambiguous/undefined problems. Ability to think abstractly. 
• A proactive approach to tasks.
   

Job responsibilities

• Responsible for designing and implementing build and test infrastructure, creating and enforcing. good engineering practices, and evaluating product quality for various external and/or internal products.
• Conduct research and create Proof of Concepts on new testing technologies/tools/concepts.
• Collecting TA metrics, statistics and reports.
• Design test strategies by analyzing and dissecting complex heavily integrated software systems.
• Develop and contribute to the automated testing efforts for the QA team.
• Design and build scalable, maintainable, and flexible automation test framework.
• Investigate the root cause of issues to assist with finding the most comprehensive and robust solutions.
• Collaborate closely with product, project, and development teams to identify and resolve technical, business, and process-related issues.

We are looking for a Python AI Developer to build and scale AI-powered solutions for real-world use cases. This is a hands-on role focused on developing agentic systems, RAG pipelines, and production-grade LLM integrations.

Part-time during the first month

Requirements

• 4+ years of development experience with Python
• Experience building real AI applications 
• Experience with LLM APIs (Claude, OpenAI, etc.)
• Understanding of RAG and AI workflows
• Experience with APIs and integrations
• Basics of prompt engineering
• Good communication skills
• Comfortable working in a fast-paced environment

Nice to have

• Experience with LLM frameworks (LangChain, LlamaIndex, etc.)
• Experience working with clients or enterprise systems

Responsibilities

• Build AI features using LLMs (Claude, etc.)
• Work with RAG pipelines
• Create AI agents / workflows
• Integrate AI into products via APIs
• Collaborate with team and clients

YozmaTech isn’t just another tech company — we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family — you’ll feel right at home with us.

We are now launching our next growth engine — AI-powered, automated, and data-driven.
This role is not about coordination. We are looking for a builder who will own and develop our end-to-end Outreach & GTM Engine.

Key Requirements:
🔹 2+ years of experience in SDR, Growth, RevOps, GTM, or Marketing roles;
🔹 Strong hands-on CRM experience (HubSpot / Monday — customization and workflow building);
🔹 Experience with automation tools (n8n, Zapier, Make, Clay, etc.);
🔹 Experience working with LLM workflows and AI tools (ChatGPT, Claude Code, etc.);
🔹 Builder mindset — able to ship fast;
🔹 High ownership and accountability;
🔹 Strong analytical thinking;
🔹 Clear communication skills;
🔹 Comfortable in a fast-paced scale-up environment;
🔹 Systems thinker, not just a task executor;
🔹 English — Upper-Intermediate or higher;
🔹 Experience in the tech outsourcing / R&D services industry;

Will be plus:
🔹 Experience building GTM systems from 0 → 1;

What you will do:
🔹 Build and optimize outbound and SDR automation systems;
🔹 Architect end-to-end CRM and GTM workflows (HubSpot / Monday);
🔹 Design and deploy AI agents for research, personalization, and qualification;
🔹 Improve funnel conversion rates and pipeline predictability;
🔹 Align GTM insights with Recruiting teams;
🔹 Drive measurable impact: more qualified meetings, lower cost per meeting, predictable pipeline growth;

We are looking for a Software Engineer with strong backend expertise to strengthen our engineering team at a successful web project from the USA.

As a Software Engineer, you will contribute to building and enhancing the platform within a collaborative engineering team. While the current stack includes Angular and Node.js, the strategic goal is to expand backend capabilities and strengthen collaboration with engineering and ETL teams.

Depending on project priorities, you may initially focus on Angular/Node.js features, while gradually contributing more to backend services and integrations, where .NET/C# experience will be valuable. You should be comfortable working across the stack when needed.

Our ideal candidate:

• Is comfortable working across both frontend and backend when needed
• Brings strong backend engineering experience
• Can help increase the technical seniority of the team
• Is proactive and capable of contributing to technical direction and system design
• Demonstrates strong ownership and problem-solving skills
• Is collaborative, comfortable working in ambiguous environments, able to mentor others, and raise the overall technical maturity of the team

Requirements

Must have

• 5+ years of professional software development experience.
• Strong experience in backend development.
• Hands-on experience with Node.js and Angular.
• Previous or current experience with .NET / C#.
• Experience designing and implementing backend services or APIs.
• Strong problem-solving skills and the ability to work with complex systems.
• Upper-Intermediate English (B2+) or higher.
• Proactive mindset and ability to take ownership of technical solutions.

Will be a plus

• Experience with AWS or other cloud platforms
• Experience working with healthcare systems or regulated environments
• Experience with SQL and/or NoSQL databases (e.g., MySQL, MongoDB)
• Mentorship or technical leadership experience

Responsibilities

• Develop and maintain features using Angular and Node.js (Express).
• Contribute to backend services and system architecture where applicable.
• Strengthen the team's backend expertise and engineering maturity.
• Collaborate with engineering and ETL teams on integrations and data-related workflows.
• Participate in architecture discussions, code reviews, and technical decision-making.
• Identify opportunities to improve system scalability, reliability, and maintainability.
• Share knowledge and support other engineers when needed.

About Project

Our client is a Software company from the USA.

Product

This platform is dedicated to ensuring payment integrity for health payers. Our project focuses on creating and implementing cutting-edge technology solutions to tackle current and future challenges in the healthcare industry for health plans. By bringing together payers, providers, and business partners on one technology platform, we aim to facilitate transparent communication and support collaboration.

Stage

Active phase of development

Project team

Existing team on the client side. We work with the US team (Eastern and Central time zones) — around 10 people. Our team is 17 people (9 MEAN stack developers, 8 QA, 1 PM)

Project Technologies

MEAN (MongoDB, Express. js, Angular and Node.js)

Work schedule

Full-time working day (flexible hours), possibility to work remotely or visit our offices in Lviv, Kyiv or Krakow.

Interview Stages

1-st stage — Call with Recruiter (30 minutes)
2-nd stage — Interview with our Senior Engineer (1 hour)
3-rd stage — Client interview