Jobs at Djinni
9943-
· 19 views · 1 application · 2d
Support Engineer
Office Work · Ukraine (Kyiv) · Product · 2 years of experienceEstonian software company (15+ years in the market, innovative web & mobile solutions for transportation management) is looking for a Support Engineer in Kyiv (on-site). REQUIREMENTS: - At least 2 years of technical support experience (1st-2nd line); -...Estonian software company (15+ years in the market, innovative web & mobile solutions for transportation management) is looking for a Support Engineer in Kyiv (on-site).
REQUIREMENTS:
- At least 2 years of technical support experience (1st-2nd line);
- Practical skills with Windows Active Directory, DNS, DHCP;
- MySQL skills;
- Higher education;
- Technical English (higher proficiency is a plus).
COMPANY OFFERS:
- Official employment, all taxes are paid;
- Exemption from mobilization;
- Working hours: Monday to Friday, 08:00–17:00;
- Mandatory presence at the workplace in the Solomiansky district of Kyiv;
- 24 paid vacation days per year;
- Paid sick leave;
- Provision of necessary up-to-date equipment.
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· 17 views · 2 applications · 2d
Middle Video Engineer
Full Remote · Countries of Europe or Ukraine · Product · 1 year of experience · A2 - ElementaryWe are looking for a Middle Video Engineer to join our team and help improve and support our video streaming infrastructure. Together with the Product Owner, we define priorities across the backlog — ranging from long-term, high-effort initiatives to...We are looking for a Middle Video Engineer to join our team and help improve and support our video streaming infrastructure. Together with the Product Owner, we define priorities across the backlog — ranging from long-term, high-effort initiatives to urgent, fast-delivery tasks.
Responsibilities:- Design, develop, and maintain a scalable video streaming server
- Support and extend an existing ffmpeg-based encoding service (with parts migrating to GStreamer)
- Maintain and improve an existing web-based video player
- Optimize code performance and resource usage
- Develop and support event-based handlers for a video mixer pipeline
Must-Have:
- Hands-on experience with ffmpeg
- Strong understanding of video streaming protocols: RTMP, MPEG-TS + SRT, RTP, WebRTC, HLS
Nice-to-Have:
- Experience with TypeScript/JavaScript or Python
- Familiarity with GStreamer
- Understanding of video encoding techniques
- Knowledge of video codecs and container formats
- Good grasp of networking concepts (multicast, backpressure, socket buffers, slow client issues)
- Experience working with Docker
- Basic understanding of HDMI and SDI
- Experience with SDI muxing and video capture (Blackmagic hardware is a plus)
We offer:
- 30 days off per year (vacation and sick days);
- Medical insurance;
- Free corporate English language courses;
- Flexible schedule with full-time work, minimal bureaucracy, no micromanagement, and no time tracking;
- A fantastic team of creative and interesting people.
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· 43 views · 15 applications · 2d
Service Delivery Manager
Full Remote · Countries of Europe or Ukraine · 1 year of experience · B2 - Upper IntermediateLocation: Ukraine Type: Full-time Experience Level: Entry Level Work Model: Hybrid Working language: English (Intermediate level or above). Ukrainian is a plus but not required. Company Overview: Welcome to WWG - Italian company with twenty years of...Location: Ukraine
Type: Full-time
Experience Level: Entry Level
Work Model: Hybrid
Working language: English (Intermediate level or above). Ukrainian is a plus but not required.Company Overview:
Welcome to WWG - Italian company with twenty years of experience and solid expertise in digital innovation technology. We're all about pushing boundaries and elevating business value through our diverse array of services, which span custom software development, product design, QA, and consultancy.
At WWG, it's not just about what we do, but how we do it. Our teams are deeply immersed in the principles of Lean thinking and Agile methodology. It's this mix that keeps us agile, innovative, and consistently ahead of the curve. We're not just following industry standards; we're setting them, ensuring each project we undertake isn't just done, but done brilliantly.Job Description:
We're searching for a Service Delivery Manager, a budding project manager who is keen on mastering the art and science of project delivery. In this role, you'll be immersed in the world of project management, working closely with our experienced managers and learning the ropes of efficient and effective service delivery in the tech industry.Responsibilities:
· Assist project managers with routine project tasks.
· Collaborate with cross-functional teams to ensure project milestones are met.
· Participate in client meetings, documenting requirements.
· Learn to manage project schedules, budgets, and resource allocation.
· Contribute to risk management and problem-solving in project cycles.
· Gain exposure to various project management methodologies and tools.Qualifications:
· Currently enrolled in or a recent graduate of Business Administration, Management, Computer Science, or a related field program.
· Basic understanding of project management principles and practices, PLC.
· Strong communication skills, and readiness to work in a rapidly changing environment.
· Eagerness to learn about service delivery and project management in the tech industry.
· An analytical mindset with the ability to mitigate issues effectively.
· Team player with the ability to work collaboratively.Benefits:
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As a Service Delivery Manager at WWG, you’ll have the opportunity to develop your project management skills in a real-world setting, be mentored by experienced professionals, and work on exciting technology projects.If you’re passionate about technology, eager to grow in the world of IT project management, and want to work in an international, Agile-driven environment — we’d love to hear from you! Apply now and start your journey towards becoming a top Service Delivery Manager at WWG. -
· 5 views · 1 application · 2d
Media Buyer (Meta, Google, TikTok)
Full Remote · Countries of Europe or Ukraine · Product · 3 years of experience · B1 - IntermediateWe’re looking for a Media Buyer to lead user acquisition campaigns across Meta, Google, and TikTok for our mobile (iOS/Android). You’ll be responsible for launching, optimizing, and scaling paid campaigns with a strong focus on data, performance, and...We’re looking for a Media Buyer to lead user acquisition campaigns across Meta, Google, and TikTok for our mobile (iOS/Android).
You’ll be responsible for launching, optimizing, and scaling paid campaigns with a strong focus on data, performance, and clear business impact.
Responsibilities:
- Plan, launch, and optimize paid campaigns in Meta, Google Ads, and TikTok Ads for mobile apps.
- Manage budgets, bids, and pacing toward performance KPIs (CPI, CPA, ROAS).
- Develop and test hypotheses: creatives, audiences, placements, funnels, and offers.
- Set up and validate event tracking; ensure correct attribution via MMPs (AppsFlyer, Adjust, etc.) and SKAdNetwork.
- Conduct regular performance analysis: cohort and channel contribution reports, insights, and scaling recommendations.
Requirements:
- 3+ years of hands-on experience in user acquisition for mobile apps via Meta, Google, and/or TikTok.
- Proven success in achieving CPI/CPA targets and scaling profitable campaigns.
- Strong analytical skills: dashboard building, data interpretation, actionable insights.
- Solid understanding of attribution models (including post-IDFA), event tracking, funnels, LTV, and ROAS.
- Languages: English, Ukrainian and Russian
Nice to Have:
- Experience working with the US market.
- Familiarity with analytics tools: AppsFlyer / Adjust, Firebase / GA4, Looker / Google Sheets, or similar.
- Curiosity, initiative, and ownership mindset — you’re proactive in finding growth opportunities.
What We Expect:
- Autonomy and reliability in campaign management.
- Transparent and data-driven reporting.
- Initiative in testing and proposing new growth hypotheses.
- Consistent delivery and respect for timelines.
Stages:
- HR call
- Tech interview
Ready to level up your career? We're ready for you
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· 41 views · 2 applications · 2d
Business Development Manager
Office Work · Poland · Product · 2 years of experience · B2 - Upper IntermediateWere looking for a driven Business Development Manager to join our clients growing fintech team. Youll help expand partnerships, drive market growth, and strengthen the companys position in the global payments industry. This role offers the chance to...Were looking for a driven Business Development Manager to join our clients growing fintech team. Youll help expand partnerships, drive market growth, and strengthen the companys position in the global payments industry.
This role offers the chance to build key client relationships and deliver tailored payment solutions in a fast-paced, international environment.
Responsibilities:
- Searching for payment solutions/payment providers for the high-risk industry (Tier 1 countries)
- Attending conferences and professional events
- Building strong and trusting relationships with partners and key decision-makers
- Close collaboration with internal teams (sales, product, legal, compliance, finance)
- Managing project tasks related to the launch of payment solutions
- Monitoring market trends, competitor activities, and emerging promising trends in the industry
- Coordinating activities, exchanging relevant information, and providing feedback for the successful implementation and launch of payment solutions.
- Providing regular reports on business development activities, PSPs/Banks relationships, market trends, and performance metrics
Analyzing data, identifying areas for improvement, and making recommendations.
Requirements:
- At least 2 years of experience in a BizDev role or Payment manager / HoP within the high-risk sector (gambling)
- Experience in searching, launching, and implementing new payment solutions
- Experience and understanding of how to effectively leverage industry events, networking, etc.
- In-depth knowledge of payment processing technologies, payment methods, and industry terminology (AML, KYC, PCI-DSS, etc.)
- Analytical mindset and ability to conduct market research, track trends, and analyze competitor activities, emerging technologies in the payment and gambling industries
- Negotiation skills to secure favorable contracts and ensure competitive rates and terms
- Strong interpersonal skills to establish and develop relationships with payment providers and financial institutions
English (upper intermediate+ level).
Benefits:- Competitive salary to fuel your journey.
- Attend international conferences.
- 24 days of paid vacation.
- Partial tax + ZUS coverage.
- Corporate meal compensation.
- Parking costs covered.
- Corporate events + exclusive merch.
- Join our corporate football team.
- Team-building adventures.
- Modern office.
- English course compensation.
- Sports activity support.
- Training budget.
- Medical insurance coverage
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· 109 views · 19 applications · 2d
Middle .NET Engineer
Ukraine · 3 years of experience · B2 - Upper IntermediateBlackthorn Vision is looking for a Middle .NET Engineer. Our client, established in 2011 and based in Colorado, is a leading player in the U.S. application management market. We've had a successful partnership with this client and are seeking candidates...Blackthorn Vision is looking for a Middle .NET Engineer. Our client, established in 2011 and based in Colorado, is a leading player in the U.S. application management market. We've had a successful partnership with this client and are seeking candidates who are eager to take ownership and improve a product already trusted by over 6,000 enterprises.
Requirements:
- 3+ years of commercial experience working on the backend as a .NET developer.
- Cloud systems development experience.
- Understanding of data access technologies, including Entity Framework and MongoDB.
- Experience with both SQL and NoSQL databases.
- Experience with microservice-oriented architecture, parallel, and asynchronous programming design patterns.
- Experience with Kubernetes, Docker, and RabbitMQ.
- Proven experience with Azure technologies: Azure Entra ID, Azure Storage accounts, Azure Service Bus, Azure container registry.
- Knowledge of design and architectural patterns.
Upper-intermediate English level.
Responsibilities:
- Develop and maintain high-quality software solutions using .NET 8.0.
- Take full ownership of delivering new features to end users, including designing architecture, implementing, testing, and onboarding the customer support team with new functionality.
- Collaborate with product owners, the support team, and end users to understand project requirements and deliver solutions.
- Participate in code reviews to enhance overall code quality.
- Ensure applications are high-performing, responsive, and of excellent quality.
- Troubleshoot and resolve technical issues and defects promptly.
- Create code documentation, technical specifications, and architecture diagrams for new features.
- Follow agile methodologies and participate in regular sprint planning and review meetings.
You are compatible with us if you:
- Have a strong product mindset.
- Have a proactive approach to taking ownership of decisions/features.
- Possess a strong, curiosity-driven mindset.
- Are comfortable with challenges.
- Have the ability to collaborate and build relationships with diverse personalities.
- Demonstrate customer-focused decision-making.
- Exhibit clear and timely communication.
- Are open to giving and receiving constructive feedback.
- Value the quality of your code.
- Are able to solve the required technical tasks and communicate throughout the process (for example, asking clarifying questions promptly).
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· 8 views · 0 applications · 2d
Palantir Foundry Engineer
Full Remote · Ukraine · 10 years of experience · C1 - AdvancedProject description We are seeking a Palantir Foundry & AIP Engineer with hands-on experience across the full Foundry ecosystem and Palantir's Artificial Intelligence Platform (AIP). This role goes beyond data engineering: you will design, build, and...Project description
We are seeking a Palantir Foundry & AIP Engineer with hands-on experience across the full Foundry ecosystem and Palantir's Artificial Intelligence Platform (AIP). This role goes beyond data engineering: you will design, build, and operationalize AI-powered workflows, agents, and applications that drive tangible business outcomes. The ideal candidate is a self-starter, able to translate complex business needs into scalable technical solutions, and confident working directly with stakeholders to maximize the value of Foundry and AIP.
Responsibilities
Data & Workflow Engineering: Design, develop, and maintain scalable pipelines, transformations, and applications within Palantir Foundry.
AIP & AI Enablement:
Support the design and deployment of AIP use cases such as copilots, retrieval workflows, and decision-support agents.
Ground agents and logic flows using RAG (retrieval‐augmented generation) by connecting to relevant data sources, embedding/vector search, ontology content.
Use Ontology-Augmented Generation (OAG) when needed: operational decision making where logic, data, actions and relationships are embedded in the Ontology.
Collaborate with senior engineers on agent design, instructions, and evaluation using AIP's native features.
End-to-End Delivery: Work with stakeholders to capture requirements, design solutions, and deliver working applications.
User Engagement: Provide training and support for business teams adopting Foundry and AIP.
Governance & Trust: Ensure solutions meet standards for data quality, governance, and responsible use of AI.
Continuous Improvement: Identify opportunities to expand AIP adoption and improve workflow automation.
Skills
Must have
Required Qualifications:
10+ years of overall experience as a Data and AI Engineer;
2+ years of professional experience with the Palantir Foundry ecosystem (data integration, ontology, pipelines, applications).
Strong technical skills in Python, PySpark, SQL, and data modelling.
Practical experience using or supporting AIP features such as RAG workflows, copilots, or agent-based applications.
Ability to work independently and engage directly with non-technical business users.
Strong problem-solving mindset and ownership of delivery.
Preferred Qualifications:
Familiarity with AIP Agent Studio concepts (agents, instructions, tools, testing).
Exposure to AIP Evals and evaluation/test-driven approaches.
Experience with integration patterns (APIs, MCP, cloud services).
Consulting or applied AI/ML background.
Experience in Abu Dhabi or the broader MENA region.
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· 43 views · 16 applications · 2d
Junior Media Buyer to $600
Full Remote · Worldwide · Product · B1 - IntermediateMine Marketing is a digital marketing company. We are looking for a talented Data Entry (Junior/Trainee Media Buyer) to join our team. Requirements: - 1 year+ of experience working remotely (Marketing or any related field will be a great plus); -...Mine Marketing is a digital marketing company.
We are looking for a talented Data Entry (Junior/Trainee Media Buyer) to join our team.
Requirements:
- 1 year+ of experience working remotely (Marketing or any related field will be a great plus);
- Experience in Media Buying is preferred and will be a great plus;
- Experience with MS Office/Excel tables and data programs;
- Good analytical skills and experience working with numbers;
- Typing speed and accuracy;
- Excellent knowledge of correct spelling, grammar and punctuation;
- Attention to detail;
- Ability to process high volumes of data;
- Self-organization and time management skills;
- Adaptability to changing priorities and assignments;
- High task performance speed;
Responsibilities:
- Insert account data by inputting text based and numerical information from source documents within time limits;
- Review data for deficiencies or errors, correct any incompatibilities if possible and check output;
- Establish and execute new campaigns, follow-up and measure, analyze the results and the effectiveness and use this data to create proposals for Team Lead;
- Monitor campaign statistics, optimize the effectiveness of campaigns and investigate traffic drops;;
- Assist Team Lead of Media Buying in daily tasks (in the future you'll have an ability to grow to independent Media Buyer);
- Any other tasks assigned by the direct line manager or management.
What we offer:
- Opportunities for professional development and personal growth 🚀
- Competitive salary, reasonable and fair working conditions 💵
- A ridiculously awesome team and work environment 🎉
- Training opportunities, including paid courses and webinars 💻
- Remote working conditions 🏠
- Generous PTO and Holidays 🌴
Join us and let's make some social media magic happen! Apply now!
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· 41 views · 17 applications · 2d
HR/Recruitment Specialist
Full Remote · Worldwide · Product · 2 years of experience · C1 - AdvancedMine Marketing is a fast-growing digital marketing company. We are now looking for an HR & Recruitment Specialist who will not only help us attract top talent but also support our team members throughout their journey. Requirements: Proven HR...Mine Marketing is a fast-growing digital marketing company.
We are now looking for an HR & Recruitment Specialist who will not only help us attract top talent but also support our team members throughout their journey.
Requirements:
- Proven HR experience (onboarding, offboarding, performance follow-ups, HR processes, people support).
- Previous success in building and managing remote teams.
- Background in recruitment (preferably marketing and tech-related roles).
- Both written and spoken English at Advanced or Fluent level.
- Strong interpersonal and communication skills.
- Ability to implement and use HR tools, automation, documentation.
- Process-oriented mindset: structured, detail-oriented, proactive.
- Creativity in building team spirit and culture (events, activities, engagement).
- Ability to balance both HR responsibilities and recruitment tasks when needed.
Responsibilities:
- Handle onboarding & offboarding professionally.
- Conduct regular 1:1s, monthly talks, and team check-ins.
- Build and maintain a strong corporate culture and team spirit.
- Set up and improve HR operational processes (documentation, policies, sick leave exports, guides, KPI tracking).
- Support team growth and performance through KPIs and development tracking.
- Actively participate in recruitment and headhunting when required.
- Keep accurate HR and recruitment data management.
- Collaborate with management to improve processes and implement new tools.
What we offer:
- Opportunities for professional development and personal growth 🚀
- Competitive salary and fair working conditions 💵
- A ridiculously awesome and supportive team 🎉
- Training opportunities, including paid courses and webinars 💻
- Remote work conditions 🏠
- Generous PTO and holidays 🌴
Join us and let’s make some social media magic happen! Apply now!🔮
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· 26 views · 8 applications · 2d
E-commerce Outreach (AI Image Specialist)
Part-time · Full Remote · Worldwide · Product · 1 year of experience · B2 - Upper IntermediateWe’re looking for a proactive and visually minded E-commerce Outreach & AI Image Specialist to help connect with online stores and demonstrate how AI can transform their product imagery. This is a remote, flexible role combining visual creativity, online...We’re looking for a proactive and visually minded E-commerce Outreach & AI Image Specialist to help connect with online stores and demonstrate how AI can transform their product imagery.
This is a remote, flexible role combining visual creativity, online research, and friendly outreach.
Responsibilities
- Research small and medium online stores (Shopify, Etsy, WooCommerce, Wix, etc.) with weak or inconsistent product photography.
- Choose sample product images and enhance them using StudioGradeAI’s AI tools.
- Prepare quick demo visuals to showcase the improvement.
- Send personalized outreach emails or social media messages (using provided templates).
- Manage responses and follow up with interested store owners.
- Coordinate with the Lotemx/StudioGradeAI team to track qualified leads and conversions.
Requirements
- Strong visual sense and understanding of what makes a product photo sell.
- Fluent written English (for professional, friendly communication).
- Basic familiarity with e-commerce platforms (Shopify, Etsy, WooCommerce, Wix, etc.).
- Organized, self-motivated, and proactive.
- Creative eye and attention to detail.
What We Offer
- Remote and flexible work schedule.
- Supportive, creative, and AI-driven environment.
- Fixed base pay plus bonuses based on qualified leads or conversions.
- A chance to grow with a fast-developing AI startup at the intersection of e-commerce and visual technology.
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· 23 views · 6 applications · 2d
Senior AI/ML Engineer
Full Remote · Countries of Europe or Ukraine · Product · 3 years of experience · A2 - ElementaryFAVBET Tech develops software that is used by millions of players around the world for the international company FAVBET Entertainment. We’re looking for an experienced AI/ML Engineer with a strong focus on deploying and maintaining machine learning...FAVBET Tech develops software that is used by millions of players around the world for the international company FAVBET Entertainment.
We’re looking for an experienced AI/ML Engineer with a strong focus on deploying and maintaining machine learning models in production. The ideal candidate has hands-on experience with CI/CD for ML, AWS SageMaker (or similar tools), and a solid understanding of MLOps practices and ML infrastructure.
Responsibilities:
- Work on continuous product improvement.
- Collaborate with marketing and product teams to understand business needs and deliver data-driven solutions.
- Design, develop, deploy, and maintain advanced machine learning models.
- Enhance and optimize existing machine learning models.
- Analyze large-scale datasets to uncover actionable insights that drive business and product outcomes.
- Clearly present analytical findings and model results to business stakeholders.
Requirements:
- At least 3 years of experience in designing and implementing modern ML solutions.
- Proficiency in data mining and analysis.
- Strong knowledge of Python, including libraries such as scikit-learn, LightGBM, Keras/PyTorch/JAX.
- Proficiency in SQL, including writing optimized queries.
- Experience with version control systems (e.g., GitHub, GitLab, Bitbucket).
- Experience with cloud data platforms (preferably AWS) for ML tasks (S3, Athena, RDS, Redshift, Lambda, SageMaker, ECR).
Would be a plus:
- Deep experience with MLOps tools and practices (e.g., SageMaker, CI/CD, MLflow, DVC).
- Experience with feature stores.
- Hands-on experience in designing, running, and interpreting A/B tests.
We offer:
- 30 days off — we value rest and recreation.
- Medical insurance for employees and the possibility of training employees at the expense of the company, and gym membership.
- Remote work or the opportunity — our own modern lofty office with spacious workplace, and brand-new work equipment (near Pochaina metro station).
- Flexible work schedule — we expect a full-time commitment, but do not track your working hours.
- Flat hierarchy without micromanagement — our doors are open, and all teammates are approachable.
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· 32 views · 9 applications · 2d
FullStack developer (PHP+Angular) with focus on backend side
Full Remote · Worldwide · 5 years of experience · B2 - Upper IntermediateFullStack developer (PHP+Angular) with focus on backend side. The project is online platform that helps people book desks, meeting rooms, schedule meetings, coordinate teams and manage visitors. RESPONSIBILITIES: - Build highly performant, scalable PHP...FullStack developer (PHP+Angular) with focus on backend side.
The project is online platform that helps people book desks, meeting rooms, schedule meetings, coordinate teams and manage visitors.
RESPONSIBILITIES:
- Build highly performant, scalable PHP based SaaS applications.
- Craft beautiful frontend applications using Angular 20 and Typescript.
- Develop solutions to deliver new innovative products for web and mobile platforms using the project RESTful APIs running in AWS.
- Work closely with the wider engineering team (full-stack, backend), designers, and product.
- Be included in decisions and challenge our technical direction.
- Design and develop code with performance, usability, maintainability, and security in mind.
- Resolve technical issues through debugging, research, and investigation.
- Write and maintain automated tests to ensure we deliver quality work for our customers.
- Create and maintain internal technical documentation for deliverables.
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SKILLS AND EXPERIENCE:
- 5+ years relevant experience in a software engineering role.
- Experience building large-scale consumer web/mobile applications and distributed systems.
- Knowledge of PHP + Symfony framework.
- Knowledge of TypeScript (Angular preferred) to create interactive user interfaces.
- Up to date with the latest frontend libraries, frameworks, and practices.
- Passionate about writing clean code.
- You must be a quick learner and be flexible about what technologies you use.
- Good understanding of MVC and SOLID principles.
- Experience with multi-tenancy would be a plus.
- Experience in implementing web services with a REST and Web API architecture
- You must be comfortable with rapid development in a Scrum / Agile environment and iterating based on market and customer feedback.
- Knowledge of Unit testing
- English level: upper-intermediate and higher
- Excellent collaborator and communicator within your team and the wider company.
- BSc in a related field such as Computer Science, Computer Engineering, or other software/design discipline. -
· 39 views · 3 applications · 2d
Performance Engineering Lead
Full Remote · Ukraine · Product · 6 years of experience · B2 - Upper IntermediateWho We Are: Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. About the Product: ProteanTecs is redefining how advanced electronics...Who We Are:
Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.About the Product:
ProteanTecs is redefining how advanced electronics perform in real-world conditions. Built on deep data from Universal Chip Telemetry (UCT), our client’s platform delivers predictive insights at scale across the full chip lifecycle. This isn’t a typical SaaS system - they’re operating across edge devices, complex ML pipelines, petabyte-scale telemetry data, and mission-critical cloud infrastructure. Performance here isn’t about shaving milliseconds - it’s about enabling global tech companies to prevent downtime, increase yields, and improve reliability in real time.
About the Role:
As a Performance Engineering Lead, you’ll take full ownership of proteanTecs’ performance strategy across the entire technology stack: from edge compute and ML workloads to cloud-based analytics and customer-facing dashboards.You will design and lead performance testing across the entire platform from data upload and backend processing, through machine learning workloads, to BI dashboards and visualization layers. This role combines hands-on technical work with strategic leadership, shaping how performance, scalability, and stability are measured, tested, and continuously improved throughout our software lifecycle.
Your work will directly affect how customers interact with ProteanTecs’ platform and how the most advanced semiconductor systems in the world are monitored and optimized.
Key Responsibilities:
- You’ll own the performance layer of a deep-tech platform with massive real-world impact
- Design and execute platform-wide performance testing (load, stress, longevity)
- Identify bottlenecks across backend services, databases, ML pipelines, and dashboards
- Optimize microservices, APIs, and cloud environments (AWS, Kubernetes) for speed and efficiency
- Tune database performance for ingestion, queries, and indexing
- Improve ML workload efficiency (training, inference, resource use)
- Boost performance of dashboards and large-scale data visualizations
- Integrate automated performance testing into CI/CD workflows
- Define and track KPIs, SLAs, and reliability metrics
- Act as a company-wide performance advocate, promoting best practices across teams
- Partner with Product, Dev, DevOps, Analytics, and Machine Learning teams to identify, isolate, and resolve performance issues.
- Mentor teammates and raise the engineering bar for scalability and stability.
- Lead initiatives like Continuous Performance and “Performance as a Service”.
Required Competence and Skills:
- 6+ years of experience in performance engineering, backend optimization, or large-scale cloud systems.
- Proven experience in designing, executing, and analyzing performance, load, and stress tests.
- Hands-on experience with cloud platforms (such as AWS, GCP, Azure).
- Expertise in backend microservices performance - profiling, bottleneck detection, and optimization.
- Experience optimizing databases such as Vertica, MySQL, and Elasticsearch.
- Familiarity with machine learning workloads and model performance
- optimization.
- Strong scripting and automation skills in Python.
- Familiarity with monitoring and observability tools (Prometheus, Grafana, or similar).
- Experience integrating performance testing and monitoring into CI/CD
- pipelines (GitHub Actions, Jenkins).
Nice to have:
- Experience leading performance and reliability initiatives or teams.
- Strong understanding of big data systems, distributed architectures, and scalability challenges.
- Understanding of frontend and BI dashboard performance, including query efficiency, caching, and rendering optimization.
- Experience in testing and optimizing Tableau dashboards and Vertica performance.
- Familiarity with data pipelines, parquet-based processing, or ETL systems.
- Knowledge of machine learning infrastructure (MLRun).
- Proven success in building or contributing to internal performance frameworks.
Why Us?
- We provide 20 days of vacation leave per calendar year (plus official national holidays of the country you are based in).
- We provide full accounting and legal support in all countries in which we operate.
- We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.
- We offer a highly competitive package with yearly performance and compensation reviews.
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· 131 views · 19 applications · 2d
Junior PHP Developer
Full Remote · Worldwide · Product · A2 - ElementaryLalafo is a fast-growing C2C marketplace with over 3.5 million active users. We provide an online platform that enables people to buy and sell goods, order services, find jobs, and connect with specialists. Since 2015, we’ve been operating in markets such...Lalafo is a fast-growing C2C marketplace with over 3.5 million active users. We provide an online platform that enables people to buy and sell goods, order services, find jobs, and connect with specialists. Since 2015, we’ve been operating in markets such as Kyrgyzstan, Azerbaijan, Serbia, and Poland.
Our tech team is building fast, scalable, and user-oriented solutions that support millions of users. If you’re passionate about backend development, eager to grow your skills, and excited to contribute to a live product — we’d love to have you join us!
Technologies used in the project:
Kubernetes, GitLab CI, Ansible, PostgreSQL, Redis, RabbitMQ, Elasticsearch, PHP, Python, Node.js, ClickHouse, Kafka, Graylog, InfluxDB, MongoDB, PHP 8.3, Symfony ^6.4, Yii2.Responsibilities:
- Develop and maintain PHP applications under the guidance of senior developers
- Implement REST API endpoints and third-party integrations
- Work with SQL/NoSQL databases and optimize queries
- Learn and apply message queue concepts (e.g. RabbitMQ)
- Write clean, well-documented, OOP-compliant code
- Participate in code reviews and knowledge-sharing sessions
- Collaborate with team members and QA engineers
- Contribute to testing and debugging processes
Requirements:
- PHP 8.0+ — basic to intermediate level
- Experience with pet or commercial projects
- Solid understanding of OOP principles and basic design patterns
- Understanding of REST API architecture and tools like Postman
- Knowledge of SQL databases (e.g. PostgreSQL, MySQL)
- Basic understanding of message queues and async processing
- Git (basic usage: commits, branches, pull requests)
Soft Skills:
- Eagerness to learn and grow with support
- Attention to detail and clean code
- Proactive attitude and willingness to ask questions
- Good communication and collaboration skills
- Self-organization and time management
We offer:
- ✨ Real-world product experience with millions of users
- 👨🏫 Mentorship from mid- and senior-level developers
- 🚀 A growth-oriented environment with exciting, challenging tasks
- 🧠 Code reviews and regular internal knowledge-sharing sessions
- 🤝 A friendly team and open, honest communication
- 🏢 Office-based teamwork in Kyiv or Cherkasy
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· 23 views · 5 applications · 2d
Full-Stack Developer (PHP/JS)
Full Remote · Armenia · 5 years of experience · B2 - Upper IntermediateMeet the YozmaTech YozmaTech isn’t just another tech company - we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster. We build dedicated development teams across 10+ countries,...Meet the YozmaTech
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YozmaTech isn’t just another tech company - we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family - you’ll feel right at home with us.
Our client is a leading video monetization platform used by hundreds of digital publishers worldwide to recommend high-quality video content to their users.
Key Requirements:
🔹 At least 4-5 years of experience in software development;
🔹 Knowledge in HTML, and at least 2 years with Vanilla JavaScript- understanding objects, prototypes, event handling, cross-browser challenges, asynchronous client-side etc.;
🔹 Experience with at least one Object-Oriented Server-Side language, preferably PHP;
🔹 Good understanding of client/server architecture;
🔹 Good understanding of web concepts – DOM, REST protocol, CORS, Ajax, etc;
🔹 Familiarity and/or experience with MySQL or other relational databases;
🔹 Familiarity and/or experience with UNIX/ LINUX environments;
🔹 Experience with writing modular & reusable code – OOP approach;
🔹 English - Upper-Intermediate or higher.
Will be plus:
🔹 Prior experience working in ad tech, or a working knowledge of concepts including floor price optimization, header bidding, SSP/DSP, DFP, AdX, ad networks, etc.;
🔹 B.S. in Computer Science/Mathematics/Physics from a known university;
What you will do:
🔹 Work on publisher integrations – customizing video player behavior, visual modifications, and player API usage across various environments;
🔹 Develop and maintain backend operational tools for debugging, monitoring, and platform support;
🔹 Participate in publisher onboarding – player setup, content API integrations (MRSS), and bulk operations;
🔹 Build and optimize content and ad targeting solutions using key/value targeting and custom HTML tags;
🔹 Investigate and resolve complex bugs in both frontend and backend systems;
🔹 Work on performance optimization and SEO improvements (Web Vitals, DevTools analysis);
🔹 Research, develop, and document new features and enhancements for long-term stability and scalability;
🔹 Contribute to monetization logic – implement new integrations, data research, and advanced backend fixes;
Interview stages:
🔹 HR Interview;
🔹 Technical Interview;
🔹 Test Task;
🔹 Final interview;
🔹 Reference Check;
🔹 Offer;
Why Join Us?
At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products - and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.
After you apply
We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining - and how you can grow with us.
Everyone’s welcome
Diversity makes us better. We create a space where you can thrive as you are.
Ready to build something meaningful?
Let’s talk. Your next big adventure might just start here.