Jobs at Djinni

About the Role

We’re looking for a UX/UI Designer to support a mission-driven, nonprofit-focused digital platform. Your work will help improve how organizations and volunteers connect, collaborate, and create positive social impact.

This role is well-suited for a designer who values purpose-driven work, enjoys thoughtful problem-solving, and is comfortable contributing on a part-time, flexible basis within a distributed, diverse team.

What You’ll Do:

- Design intuitive, user-centered UX flows and UI components

- Create and iterate on wireframes, mockups, and high-fidelity designs

- Collaborate with product and engineering during the 14:00–16:00 MT overlap window

- Improve usability, accessibility, and visual consistency across the product

- Contribute to or refine a design system (components, typography, color, spacing)

- Incorporate feedback quickly and iterate efficiently

Required Skills & Experience:

- 4+ years of experience in UX/UI or Product Design

- Strong portfolio demonstrating user-centered thinking

- Proficiency with Figma (or similar tools)

- Solid understanding of UX principles, accessibility, and responsive design

- Ability to work independently with minimal supervision

- Comfortable collaborating with a remote, multicultural team

- Availability during 14:00–16:00 MT (daily overlap is required)

Nice to Have:

- Experience designing SaaS, web apps, or startups

- Experience working with distributed or global teams

- Basic understanding of frontend constraints (HTML/CSS awareness)

Codefinity is a fast-growing EdTech company on a mission to make tech education accessible, engaging and truly practical. We help people from all over the world master in-demand programming skills and build meaningful careers in tech.

Our platform has already empowered hundreds of thousands of learners globally — from complete beginners to industry professionals — through interactive, hands-on courses designed to accelerate real skill growth.

We’re a team of ambitious and creative people who love what we do and move fast. We experiment, learn and constantly raise the bar to achieve bold goals. At Codefinity, every idea can make a difference, and every team member has a real impact on our growth story.

And now we are looking for a User Acquisition Manager to help us scale even faster. This role will play a key part in driving our growth strategy, acquiring new users globally, and expanding our impact in the EdTech space.

Responsibilities:

• Development and implementation of a paid user acquisition strategy on the Meta platform.
• Management of marketing campaigns to achieve business goals, evaluating campaign performance based on both marketing metrics (CPM, CTR, CR, CPA) and product metrics (LTV, ROI).
• Testing to identify the most effective combinations of creatives, funnels, and audiences.
• Close collaboration with creative, product and analytics teams.
• Conducting market research and generating new ideas and concepts.

Requirements:

• 2+ years of experience in performance marketing or user acquisition, preferably in B2C or subscription-based products.
• Proven track record of managing Meta Ads at scale (other channels are a plus: Google, TikTok, X ads, Pinterest Ads etc.).
• Strong analytical skills with experience in data-driven decision-making.
• Hands-on experience with testing and optimizing campaigns for growth and profitability.
• Strategic mindset with the ability to build and scale UA processes from the ground up.
• Excellent collaboration and communication skills to work cross-functionally with product, creative and analytics teams.
• Upper-intermediate or higher level of English.

What do we offer:

• Work within an ambitious team on a socially impactful education product.
• 20 working days of paid vacation per year, plus public holidays.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• Company doctor and massage in the office.
• Sports activities: running, yoga, boxing, and more.

We are looking for a motivated Junior SERM Specialist with an SEO background to help manage and protect our brand’s online reputation. You’ll be responsible for monitoring search results, suppressing negative content, and promoting positive narratives through data-driven SEO strategies.

We are looking for candidates located in the European time zone (CET ±1) to ensure smooth collaboration.

What we expect:

• 1+ years of hands-on experience in SEO & SERM.
• 1+ years of experience with Google Ads
• Upper-Intermediate to Advanced English (written and spoken), fluent Ukrainian or Russian.
• Foundational knowledge of on-page and off-page SEO and how it applies to reputation management.
• Experience with SEO tools such as Google Search Console, Ahrefs, or SEMrush.
• Ability to analyze SERPs and identify competitor strategies.
• Understanding of PPC (Google Ads) to identify and mitigate unwanted or infringing advertisements.
• Understanding of Brand Protection processes: filing complaints for Trademark violations, Copyright infringement (DMCA), and phishing.
• Technical ability to identify hosting providers and domain registrars to send official Abuse Reports.

Key responsibilities:

• Track brand mentions and monitor changes in search engine results.
• File complaints in Google Ads against competitors for trademark infringement or unfair advertising.
• Submit reports for Trademark/Copyright violations and phishing to hosting providers and registrars.
• Execute strategies to displace negative search results with positive brand content.
• Coordinate with webmasters and platforms to remove or update misleading information.
• Prepare regular reports on reputation KPIs and the effectiveness of brand protection efforts.

About us:
 

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

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

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

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

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

Requirements: 

• 5+ years of PostgreSQL, Pg/SQL development experience. 
• Oracle SQL, PL/SQLL development experience will be a big plus. 
• Shredding, changing and understanding older code without the need to know everything about a business process is imperative. 
• Query performance analyzing and tuning. 
• Experience with high loaded OLTP systems. 
• Experience with very large databases. 
• Experience with design, development, and maintenance of reporting and data warehouse databases a plus. 
• Experience with migrating schemas and data from Oracle to other RDBMS a plus. 
• Basic DB administration experience. 
• Familiarity with database design, documentation and coding. 
• Familiarity with programming languages API. 
• Problem solving skills and ability to think algorithmically. 
• Experience with Amazon Redshift, RDS, Aurora is a plus. 

General skills: 

• English (reading/writing/speaking) — min Intermediate level. 
• Experience in working with people. 
• Quick understanding and learning abilities. 
• Ability to work on several tasks in parallel. 

 
Responsibilities: 

• Responsible for designing, coding, and implementing software solutions using modern techniques and programming SQL language. 
• Provides high-level database development assistance in creating specific applications for businesses. 
• Provides general support on information technology to design, develop, execute, and maintain the database application systems, applying several RDBMS. 
• Ensures research and innovation at all levels of the software development process. 
  May participate in multiple projects simultaneously as a senior development team member. 
• Works harmoniously in a cross-functional team comprising managers, supervisors, business analysts, systems personnel, network staff, and other developers in ensuring the delivery of software solutions as planned, within set budget, and timely. 
• Acts as a coach or mentor to junior software developers. 
• Provides excellent customer service by responding to and assisting with help desk calls to resolving issues, including system outages. 

Company offers: 

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

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:

The product is an enterprise-grade digital experience platform that provides real-time visibility into system performance, application stability, and end-user experience across on-premises, virtual, and cloud environments. It ingests large volumes of telemetry from distributed agents on employee devices and infrastructure, processes and enriches data through streaming pipelines, detects anomalies, and stores analytical data for monitoring and reporting. The platform serves a global customer base with high throughput and strict requirements for security, correctness, and availability. Rapid adoption has driven significant year-over-year growth and demand from large, distributed teams seeking to secure and stabilize digital environments without added complexity.

About the Role:

This is a true Big Data engineering role focused on designing and building real-time data pipelines that operate at scale in production environments serving real customers. You will join a senior, cross-functional platform team responsible for the end-to-end data flow: ingestion, processing, enrichment, anomaly detection, and storage. You will own both architecture and delivery, collaborating with Product Managers to translate requirements into robust, scalable solutions and defining guardrails for data usage, cost control, and tenant isolation. The platform is evolving from distributed, product-specific flows to a centralized, multi-region, highly observable system designed for rapid growth, advanced analytics, and future AI-driven capabilities. Strong ownership, deep technical expertise, and a clean-code mindset are essential.

Key Responsibilities:

• Design, build, and maintain high-throughput, low-latency data pipelines handling large volumes of telemetry.
• Develop real-time streaming solutions using Kafka and modern stream-processing frameworks (Flink, Spark, Beam, etc.).
• Contribute to the architecture and evolution of a large-scale, distributed, multi-region data platform.
• Ensure data reliability, fault tolerance, observability, and performance in production environments.
• Collaborate with Product Managers to define requirements and translate them into scalable, safe technical solutions.
• Define and enforce guardrails for data usage, cost optimization, and tenant isolation within a shared platform.
• Participate actively in system monitoring, troubleshooting incidents, and optimizing pipeline performance.
• Own end-to-end delivery: design, implementation, testing, deployment, and monitoring of data platform components.

Required Competence and Skills:

• 5+ years of hands-on experience in Big Data or large-scale data engineering roles.
• Strong programming skills in Java or Python, with a willingness to adopt Java and frameworks like Vert.x or Spring.
• Proven track record of building and operating production-grade data pipelines at scale.
• Solid knowledge of streaming technologies such as Kafka, Kafka Streams, Flink, Spark, or Apache Beam.
• Experience with cloud platforms (AWS, Azure, or GCP) and designing distributed, multi-region systems.
• Deep understanding of production concerns: availability, data loss prevention, latency, and observability.
• Hands-on experience with data stores such as ClickHouse, PostgreSQL, MySQL, Redis, or equivalents.
• Strong system design skills, able to reason about trade-offs, scalability challenges, and cost efficiency.
• Clean code mindset, solid OOP principles, and familiarity with design patterns.
• Experience with AI-first development tools (e.g., GitHub Copilot, Cursor) is a plus.

Nice to Have:

• Experience designing and operating globally distributed, multi-region data platforms.
• Background in real-time analytics, enrichment, or anomaly detection pipelines.
• Exposure to cost-aware data architectures and usage guardrails.
• Experience in platform or infrastructure teams serving multiple products.

Why Us:

- We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

- We provide full accounting and legal support in all countries 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.

We are looking for an experienced Quality Control (QC) Team Lead to manage and elevate the performance of our QC department. This role is crucial for ensuring the accuracy, fairness, and consistency of all evaluation and calibration processes across the Support organization.

The ideal candidate is a strong leader with excellent analytical skills, a deep understanding of quality assurance principles, and the ability to mentor and develop a high-performing team.

HOW YOU WILL MAKE AN IMPACT

1. Team Management & Development

• Lead the daily operations of the QC team, ensuring balanced workload distribution across QC Managers and Specialists.
• Support team members in reaching individual and departmental goals.
• Conduct regular 1:1 meetings, provide feedback, and perform performance evaluations.

2. Quality Assurance Coordination

• Oversee QC sample coverage across all Support teams.
• Ensure monthly KPIs are achieved (e.g., 10% coverage of total Support volume).
• Track the number of evaluated chats and maintain data accuracy in QC reports.

3. Calibration & Consistency

• Conduct regular calibration sessions to ensure alignment between team members.
• Review QC Managers’ scoring to maintain consistency and minimize evaluation deviations.

4. Training & Knowledge Base Development

• Plan and deliver training for QC Managers and Support Team Leads to improve QC and coaching skills.
• Collaborate with the L&D department to identify knowledge gaps, recurring issues, and training priorities.

5. Dispute Resolution Oversight

• Supervise and review evaluation-related disputes between agents and QC Managers.
• Ensure fair, transparent, and consistent resolution processes.
• Report dispute trends and accuracy insights to the Head of CS.

6. Reporting & Analytics

• Prepare weekly and monthly QC performance reports, including coverage, consistency, and key trends.
• Analyze recurring mistakes and recommend process improvements.

7. Process & Documentation Management

• Create and update QC guidelines, evaluation rubrics, calibration standards, and internal documentation.
• Work closely with the Head of CS and Supervisors on workflow and process optimization.

8. Tool Integration & Automation

• Research, test, and implement AI-driven and automation tools to boost QC speed, accuracy, and efficiency.
• Ensure smooth tool adoption and provide training for the QC team.
• Monitor tool performance and gather feedback for continuous improvement.

9. Cross-Department Collaboration

• Serve as the primary communication link between QC, Support Team Leads, and L&D.
• Share QC insights to support coaching quality, process enhancement, and agent development.

10. Onboarding Support (Optional)

• Assist in onboarding new QC team members and ensure they fully understand QC standards and workflows.

11. Performance Review & KPI Tracking

• Monitor individual and team QC KPIs (coverage, consistency, training completion, calibration).
• Present results to management on a quarterly basis and propose improvement plans.

WHAT WILL HELP YOU SUCCEED IN THE ROLE

• 2+ years of experience in Quality Control, Customer Support QA, or a similar role.
• Proven leadership experience (Team Lead, Senior QC, or similar).
• Strong analytical skills and attention to detail.
• Excellent communication and feedback-giving abilities.
• Experience with QA tools, scorecards, calibration processes, and reporting.
• Ability to manage multiple priorities in a fast-paced environment.

WHY YOU’LL LOVE IT HERE:

• Flexible working hours and a remote work setup, so you can plan work around your life and not your life around work!
• Unlimited vacation days and paid sick leave—because your rest matters.
• A competitive compensation that truly reflects your skills and expertise.
• Employee referral bonus and gifts to celebrate your special occasions.
• 50% financial support for learning expenses to supercharge your professional growth!
• A positive atmosphere where you always feel respected and truly belong.
• Inspirational team-building activities that turn colleagues into best friends.
• Wellness benefits: We’ll support your sports passions, from yoga classes to gym memberships.
• Co-working space reimbursement to save your nerves from always working from home :)

About us:
 

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

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

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

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

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

 
Required skills: 

• 5+ years of Java development. 
• Strong programming skills with Java. 
• Experience with OOP/OOD. 
• Experience with clustered applications, pooling, connection management, transactions. 
• Familiarity with programming specifics like asynchronous I/O, concurrency, distributed web systems and regression. 
• A good foundation in algorithms, design patterns, and data structures. 
• Experience with unit/functional testing. 
• Strong experience with the most of Spring Framework/JDBC, databases (PostgreSQL). 
• Strong experience with Javascript and React Framework. 
• Maven, Git. 
• Strong understanding of RDBMS concepts + SQL. 

Will be a plus:  

• Familiarity with NoSQL databases like Redis. 
• Experience with Kubernetes and Nomad. 
• Experience with AWS services. 
• Experience with Oracle databases. 
• Experience with distributed messaging systems, particularly RabbitMQ. 
• Experience in application and infrastructure monitoring. 
• Proven ability to troubleshoot production problems related to software applications. 
• Exposure to high-load systems. 
• Good spoken and written English skills.   

 
 Company offers: 

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

We are looking for an experienced Data Engineer to join a long-term B2C project. The main focus is on building Zero ETL pipelines, as well as maintaining and improving existing ones.

Responsibilities:
- Build and maintain scalable Zero ETL pipelines.
- Design and optimize data warehouses and data lakes on AWS (Glue, Firehose, Lambda, SageMaker).
- Work with structured and unstructured data, ensuring quality and accuracy.
- Optimize query performance and data processing workflows (Spark, SQL, Python).
- Collaborate with engineers, analysts, and business stakeholders to deliver data-driven solutions.

Requirements:
- 5+ years of experience in Data Engineering.
- Advanced proficiency in Spark, Python, SQL.
- Expertise with AWS Glue, Firehose, Lambda, SageMaker.
- Experience with ETL tools (dbt, Airflow etc.).
- Background in B2C companies is preferred.
- JavaScript and Data Science knowledge are a plus.
- Degree in Computer Science (preferred, not mandatory).

We offer:
- remote time job, B2B contract
- 12 sick leaves and 18 paid vacation business days per year
- Comfortable work conditions (including MacBook Pro and Dell monitor on each workplace)
- Smart environment
- Interesting projects from renowned clients
- Flexible work schedule
- Competitive salary according to the qualifications
- Guaranteed full workload during the term of the contract
 

• 3+ years of experience in DevOps / Infrastructure / System Administrator
• work only Baremetal servers
• Strong Linux (Ubuntu/Debian) and networking fundamentals;
• Terraform and Ansible in production;
• CI/CD: GitLab CI, Jenkins;
• Monitoring: Prometheus, Grafana;
• Scripting: Bash, Python;
• Git workflow best practices;
• Admin-level understanding of PostgreSQL, MySQL
• Docker / Kubernetes / Helm;

• English Intermediate.

   

Your daily adventures:

CI/CD & Automation

• CI/CD pipelines maintenance and development (GitLab CI, Jenkins);
• Infrastructure provisioning via Terraform and Ansible;

• Deployments and rollback management.

   

Infrastructure

• Linux administration (Ubuntu/Debian);
• DNS, routing, iptables;
• VPN (OpenVPN).

Observability & Incidents

• Monitoring (Prometheus, Grafana);
• Logging (OpenSearch);
• Uptime and SLA control;
• Incident response for critical issues, on-call participation.

About Us:

• Small team (partially in Kyiv)
• Ukrainian management
• no bureaucracy
• own Product

How would you like to optimize some of the most successful eCommerce stores, SaaS products, web/mobile applications, and lead generation funnels in their respective niches in the US and Europe? Join one of the world’s leading teams in Conversion Rate Optimization (CRO) and User Experience Optimization (UXO), consistently rated among the best globally by Clutch.co. You will be working alongside top industry professionals, learning from the best and positioning yourself among the top 1% of all CRO/UXO experts. See if you can become part of the leading CRO/UXO consulting company ConversionRate.Store

We are looking for a Web / Product Analyst to join our team.

Why Join СonversionRate.Store?

Directly Impact Millions

At ConversionRate.Store, your work will directly impact the experience of around 50 million monthly users for multiple clients. We have significantly improve the performance of the leading eCommerce and product companies in Ukraine but our core market is the US, Western Europe and Australia. Our clients include some of the world’s most recognizable brands, NASDAQ-listed companies, and unicorns valued at over $1 billion. We partner with successful and ethical businesses, including eCommerce stores, SaaS products, web/mobile applications, and lead generation funnels. We do not work with businesses that fail to contribute positively to sustainable development, such as online casinos, betting, porn, and forex.

100% data-driven culture

We make no decisions without solid data backing them up. Every hypothesis you develop will be A/B tested, and you’ll see the results firsthand. Our data engineers work closely with clients to ensure we have reliable data to base our CRO/UXO hypotheses on. We don’t accept hypotheses based solely on vision, opinion, or experience. Instead, we combine insights and best practices with data to deliver the highest-quality results.

Position Requirements:
 

— Advanced SQL skills and experience with BigQuery
— Advanced skills in Google Analytics 4 and custom reports
— Experience in setting up data tracking
— Experience with A/B tests, statistics, analytics, tracking, targeting

 

Key Responsibilities:

— Proactively analyze user’s behavior to generate hypotheses on how to increase conversion rates, ARPU, and other needed metrics

— Create advanced reports to answer any of the team’s questions about product usage, monetization, and user’s behavior in a timely manner

Will be a plus:

— Demonstrated ability to find hypotheses on how to increase LTV/ARPU and conversion rates
— Profound understanding of monetization and UX-analytics
— Experience in conversion rate optimization (CRO)
— Experience with Mixpanel / Amplitude / Tableau / Firebase
— Experience with client-side A/B testing tools (Optimizely, WVO, Convert, AB Tasty, etc)

Hi there!
We’re excited to introduce you to Softsich - a young, ambitious, and fast-growing company that creates innovative digital products and confidently expands its presence in global markets.

We are growing rapidly and are looking for a Legal Counsel who will take ownership of the company’s legal domain and support the scaling of legal processes, contract management, and regulatory compliance to the next level.

Key Responsibilities:

• Drafting and Reviewing Agreements: Draft, review, and negotiate legal agreements (SaaS Agreements, PSP and Merchant Agreements, employment contracts, NDAs).
• Due Diligence & Risk Assessment: Conduct due diligence checks on PSPs, payment processors, game providers, and affiliates to mitigate legal and compliance risks.
• Corporate Documents Management: Maintain and manage corporate legal documentation, ensuring compliance with high risk jurisdictional frameworks and policies.
• Legal Advisory: Provide legal advice on compliance-related matters, regulatory changes, and best practices within the online high-risk sector.
• Training & Policy Development: Develop compliance training programs and internal policies to enhance legal awareness and responsible high-risk measures within the organization.

Required Skills and Experience:

• Bachelor’s or Master’s degree in Law, or related field.
• Minimum 2 years of relevant experience, ideally within high-risk field, or high-risk Payments.
• English: Advanced level 
• Familiarity working with PSPs and financial institutions in high-risk transaction areas.
• In-depth knowledge of AML/CTF, financial compliance laws, and reporting.
• Experience in drafting legal documents, negotiating contracts, and assessing legal risk.
• Detail-oriented, analytical, and adaptable to a fast-changing environment.
• CAMS, ICA, or similar certifications are a strong plus.

We Offer

• Flexible schedule and remote format or offices in Warsaw/Kyiv - you choose.
• 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
• A supportive, friendly team where knowledge-sharing is part of the culture.
• Coverage for professional events and learning.
• Birthday greetings, team buildings, and warm human connection beyond work.
• Zero joules of energy to the aggressor state, its affiliated businesses, or partners.

Send your CV now to learn more!

You’re a product designer who ships-an AI-native builder who turns ambiguous ideas into working product POCs fast. You sit between product design and lightweight frontend-using AI tooling as your default workflow to test, learn, and iterate.
QuintAce is an next generation AI poker coaching platform-not another solver/HUD. We’re building coaching that translates complex poker theory into simple, motivating, gameplay-first learning for real humans.

What you’ll do (core responsibilities)
● Design + build interactive product experiences end-to-end (from concept → prototype → working demo).
● Prototype AI-first UX for poker learning: session review, deciks, and “what to do next” coaching loops.
● Use Claude Code + agentic workflows to generate, refactor, and ship POCs quickly (not just mockups). 
● Use Figma MCP server to translate Figma context into code accurately and repeatedly (components, layout, design tokens). 
● Lean hard into gen-AI for visuals/UI/product art, then integrate outputs into real flows.
● Iterate based on outcomes (speed, usability, “aha moment”, retention), not polish for polish’s sake.

What we’re looking for
● A product designer who can build, not just design.
● Strong UI/UX instincts + taste + systems thinking.
● AI geek (must-have): you actively experiment with tools/workflows and can assemble a stack to ship POCs (agents, prompts, pipelines, eval loops).

Product/UI/UX experience. se for visuals + prototyping.
● Ability to build interactive prototypes (code, no-code, or hybrid)
● Build/coding AI (Cursor/Copilot/OpenAI APIs/Vercel AI SDK) nus:** Claude Code + Figma MCP server workflows 
● 0→1/startup shipping, indie demos, experimental mind

Fidel Partners is an iGaming company with over three years of experience and a team of more than 1,300 professionals.

Our achievements include more than 10 large-scale projects that are highly popular among our clients and successfully operate across Tier 1–3 markets.

We attract and value highly qualified specialists, which allows us to build efficient processes and successfully expand our presence in new regions.

We are currently looking for an HR Analytics / Recruitment Operations Specialist.

Core Responsibilities:

• Collect, structure, and analyze recruitment data in Excel / Google Sheets.
• Build and maintain an end-to-end recruitment analytics system (from first candidate touchpoint to onboarding).
• Design, implement, and support dashboards and advanced data visualization tools to monitor funnel performance and team efficiency.
• Conduct in-depth analysis of salary ranges and run регуляр salary benchmarking studies across local and international markets.
• Develop, implement, and regularly update HR policies, internal regulations, and SOPs.
• Administer job boards and sourcing tools.
• Manage access to the recruitment ecosystem (ATS, LinkedIn Recruiter, transcription tools, AI solutions, etc.).

Our Expectations:

• You can identify insights in data and translate them into actionable solutions, not just report numbers.
• Advanced Excel skills (Pivot Tables, Power Query).
• Proven experience in writing policies, SOPs, and internal documentation with the ability to explain complex processes clearly and simply.
• Experience administering ATS platforms (Huntflow, Lever, Greenhouse) and professional sourcing tools.
• Fluent Ukrainian.
• English — Upper-Intermediate (reading documentation, working with interfaces, writing internal texts).

Will Be a Plus:

• Basic knowledge of SQL for data analysis.
• Experience with Power BI or other BI tools.

What We Offer:

• Opportunity to build a recruitment analytics system from scratch in a fast-growing environment.
• Access to top-tier recruitment and sourcing tools.
• Professional team, minimal bureaucracy, and fast decision-making.
• Work format: Remote.

Why you should consider this opportunity:

• Remote-first format: Mon—Fri, 10:00–19:00 (UTC+2) — skip the commute.
• Paid vacation & sick leave, plus an extra day off for your birthday.
• Competitive compensation that fairly reflects your expertise and impact.
• Engaging corporate events to learn, share experience, and grow with like-minded professionals.
• No micromanagement: we trust our team, encourage initiative, and keep a flat hierarchy for fast decisions.
• Ongoing professional development: continuous support to build new skills and advance your career.
• Dynamic work environment: a profitable, forward-thinking company where every specialist plays a key role.

• 🚀 Join one of the strongest teams in iGaming and unlock your full potential!

We are helping one of our product partners build a core ML function and are looking for an ML Engineer to join their internal team. The partner is building an autonomous advertising system that already creates and runs campaigns through agents. The next critical step is adding an intelligence layer that learns from outcomes and optimizes decisions autonomously.

Mission
Build machine learning and reinforcement learning systems that maximize ROI across hundreds of concurrent advertising campaigns through autonomous optimization.

Responsibilities

• Design and build reinforcement learning models for autonomous campaign optimization
• Develop prediction models to forecast campaign profitability before spend
• Implement automated bid adjustment, campaign kill-switches, and budget reallocation logic
• Analyze around two years of historical campaign data in BigQuery to identify performance patterns
• Design reward functions and feedback loops for AI agents
• Run A/B tests comparing ML-driven optimization with rule-based approaches
• Collaborate with an AI Creative Strategist to validate which creative patterns drive the highest ROI
• Monitor models in production, retrain them, and continuously iterate

Must-have requirements

• Degree in Mathematics, Physics, Computer Science, or another quantitative field
• At least 2 years of hands-on experience with machine learning models in production
• Strong Python skills with the ability to write clean, testable, deployable code
• Practical experience with at least one of the following: reinforcement learning, optimization algorithms, time-series forecasting, recommendation systems
• Confident SQL skills (BigQuery or equivalent)
• AI-native working style with daily use of modern AI coding tools
• Ability to take solutions from research to production independently
• Self-directed mindset with the ability to define and execute a work plan based on business goals
   

Nice to have

• Experience with Google Vertex AI, GCP, or similar cloud ML platforms
• Background in AdTech, programmatic advertising, or real-time bidding
• Published work or personal projects related to reinforcement learning or autonomous systems
• Experience building systems that operate on real money
• Experience with LLM-based agent orchestration

Language requirements
English at Upper-Intermediate level or higher. Code and data are the primary working languages. No client-facing communication is required.
 

Work format
Full-time, fully remote.

Are you a Senior Data Engineer passionate about building scalable, secure, and high-performance data solutions? Join our Data Engineering Center of Excellence at Sigma Software and work on diverse projects that challenge your skills and inspire innovation.

At Sigma Software, we value expertise, continuous learning, and a supportive environment where your career path is shaped around your strengths. You’ll be part of a collaborative team, gain exposure to cutting-edge technologies, and work in an inclusive culture that fosters growth and innovation.

Project

Our Data Engineering Center of Excellence (CoE) is a specialized unit focused on designing, building, and optimizing data platforms, pipelines, and architectures. We work across diverse industries, leveraging modern data stacks to deliver scalable, secure, and cost-efficient solutions.

Job Description

• Collaborate with clients and internal teams to clarify technical requirements and expectations
• Implement architectures using Azure or AWS cloud platforms
• Design, develop, optimize, and maintain squad-specific data architectures and pipelines
• Discover, analyze, and organize disparate data sources into clean, understandable data models
• Evaluate new tools for analytical data engineering or data science
• Suggest and contribute to training and improvement plans for analytical data engineering skills, standards, and processes

Qualifications

• 5+ years of experience with Python and SQL
• Hands-on experience with AWS services (API Gateway, Kinesis, Athena, RDS, Aurora)
• Proven experience building ETL pipelines for analytics/internal operations
• Experience developing and integrating APIs
• Solid understanding of Linux OS
• Familiarity with distributed applications and DevOps tools
• Strong troubleshooting/debugging skills
• English level: Upper-Intermediate
• WILL BE A PLUS:
• 2+ years with Hadoop, Spark, or Airflow
• Experience with DAGs/orchestration tools
• Experience with Snowflake-based data warehouses
• Experience developing event-driven data pipelines
• Personal Profile

PERSONAL PROFILE:

• Passion for data processing and continuous learning
• Strong problem-solving skills and analytical thinking
• Ability to mentor and guide team members
• Effective communication and collaboration skills