Jobs at Djinni

• A next-generation cross-asset data management platform to provide globally consistent data and innovative tools to support business strategy for trade/sales clients that is built on big data architecture, highly scalable, and cloud-ready. The platform enables industry-leading analytics, client reporting, regulatory compliance, surveillance, supervisory reporting, and data science solutions (data flame). The project tech stack: Java, Scala, Spring, SQL, Kafka, Hadoop.
  
  We are looking for a strong Senior Java Developer/Team Lead Java capable of being able to work within the team, being a mentor for team members, communicating with stakeholders, and being accountable for the whole team and the outcomes of activities that are assigned.
  
  The role of the Team Lead involves working with strong development teams (3 Senior Java Developers), the opportunity to work with big data improving knowledge in this domain utilizing the resources of an international bank.

   

• Responsibilities:

  • Design and build frameworks for ingesting/modeling the complex Risk data
  • Develop Low latency caching to service Front office risk systems
  • Setup monitoring and management for services
  • Provide SME support for development of automated QA scripts
  • Management of Team

   

• Mandatory Skills Description:

  • Team Lead experience
  • Development experience with expertise in the following:
  • Designing and building APIs (Java);
  • Java Server-side or Back-end development;
  • Core Java;
  • Java collections and multithreading;
  • Java Memory Management;
  • Database and SQL (writing stored procedures, designing table schemas).
  • Understanding of distributed systems.
  • Understanding of CI/CD workflow.
  • Linux
  
  • Ability to multi-task and work under pressure.
  • Ability to pick up new concepts and apply the knowledge.
  • Demonstrated problem-solving skills.
  • Enthusiastic and proactive approach with a willingness to learn.
  • The candidate is expected to be dynamic, and flexible with a high energy level as this is a demanding and rapidly changing environment

   

• Nice-to-Have Skills Description:

  • Experience in Hadoop Ecosystem (HDFS, Impala, HIVE, HBASE, etc.)
  • Experience In-memory databases and caching
  • Job Orchestration tools like Autosys or Airflow
  • Apache Spark
  • Financial background (where possible)

   

• Languages:
  • English: C2 Proficient

24PLAY is a product company from Ukraine that has been developing and publishing mobile games since 2019.

We are a team of professionals who have launched dozens of popular games and gained over 100 million satisfied players worldwide. Our games include Zombiepunk, Blitzkrieg Assault, Street Dude, and more.

We are currently looking for a 3D Artist for Creatives (Playable Ads) to share our core company values:

• Creativity: We actively encourage and embrace each other’s ideas, transforming them into reality through collaboration and innovative thinking.
• Integrity: We commit to providing honest feedback and realistically assessing situations, fostering a culture of trust and transparency.
• Productivity: We strive to optimize our workflows to achieve the best possible results in the shortest timeframe, ensuring efficiency and effectiveness in our operations.
• Uncompromising Quality: Our commitment to excellence drives us to prioritize the quality of our work above all else, ensuring that we consistently deliver outstanding results.
• Healthy Lifestyle: We advocate for a healthy lifestyle and stand against harmful habits, promoting well-being and balance within our team.

We are looking for a professional for the role that requires:

• Full-time job;
• Office-based in Kyiv.

Key responsibilities:

• Create and optimize 2D/3D assets for playable ads.
• Build scenes with lighting, shadows, and materials.
• Add and adjust VFX (particles, effects) for web platforms.
• Export assets from Unity or make them from scratch.
• Work with devs, artists, and marketing to deliver ready creatives.

Our ideal candidate:

• 1+ year in games or playable ads.
• Strong skills in asset creation and optimization.
• Confident in Blender: topology, UVs, geometry.
• Able to set up lighting and materials.
• Experience with VFX systems.
• Basics of art: composition, color, perspective, stylization.
• English: Intermediate+.

Nice to have:

• Experience in Unity.
• Skills in VFX for web.
• Simple animations in engines.
• Understanding of game marketing.

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Bonus System: A unique reward system designed to motivate employees by aligning their performance with the company’s financial goals.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Events: Enjoy board games, masterclasses, corporate events, sports activities, and free English classes.
• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, cinema, and complimentary spa facilities for employees.
• 35-Hour Work Week: Reduced working hours as a benefit for experienced employees.

We’re looking for an  AI Automation Engineer with experience in AI tools and workflow optimization to join our growing team. You’ll help us automate and scale both internal and client-side processes. This is a long-term opportunity for smart, ambitious professionals eager to grow their skills and take ownership of impactful automation systems.

What You’ll Do:

• Build and maintain n8n workflows that integrate with business tools and AI tools
• Build API integrations to platforms like Apollo, Clay, HubSpot, SalesNav, HeyReach
• Develop custom tools using Supabase, Lovable, and other AI development tools
• Optionally contribute to more technical projects and custom-coded automation or AI solutions

What You Need:

• At least 1 year of commercial experience in software development or automation
• Proficiency with n8n (or Make.com / Zapier) and understanding how to build complex automations
• Knowledge JavaScript or Python to write custom logic in workflows and 
• Being comfortable working with APIs and webhooks
• Hands-on experience with HubSpot, GHL, ActiveCampaign, or similar CRMs
• Knowledge of Cursor/Claude Code/Copilot for AI-assisted development
• Practical experience with databases(Supabase, Airtable, etc)
• Proven experience integrating AI platforms (OpenAI, Anthropic, Azure AI, etc.) into automation workflows
• Strong understanding of prompt engineering & LLM’s
• Experience working cross-functionally in distributed teams

Would be a plus:

• Deep understanding of sales pipeline

Why Join Us?

• Work on multiple dynamic projects across marketing, sales, and leadgen
• Opportunity to grow into a more technical role working with code and complex AI/automation solutions
• Shape how automation is used in real-world business contexts

Benefits:

•  Fully remote work with flexible hours 
•  Ability to influence technologies and tools used in your projects
•  20 business days of vacation per year + paid sick days
•  Accounting support provided

Role summary

We are an international company helping fast-growing startups and enterprise teams build and scale global talent. Our clients include well-known brands like Hasbro, EverCommerce, and TATA. We operate as a fully remote team across the US, Latin America, and Europe, and have supported 100+ professionals worldwide.

What you’ll do

• Process and qualify inbound inquiries (email, website, LinkedIn, etc.)
• Follow up with leads in our CRM and keep deal stages updated
• Run outbound lead generation (prospecting, list building, outreach)
• Book qualified meetings for senior sales team

• Maintain clean, accurate CRM records

   

What we’re looking for

• 0–2 years experience in sales, SDR, or lead generation
• Clear written and verbal communication skills
• Comfortable with CRM tools and basic sales workflows
• Proactive, organized, and not afraid of follow-ups

• Strong willingness to learn and improve

   

Nice to have

• Experience with B2B sales

• Familiarity with tools like HubSpot, Salesforce, Apollo, or LinkedIn Sales Navigator

   

What we offer

• Fully remote work
• Unlimited PTO
• Base salary + performance bonuses
• Opportunity to work with an international team (USA, Mexico, Brazil, Argentina, Ukraine, Slovakia)
• Clear career growth in sales
• Training and support from senior team
• Simple processes and modern tools

The core of our achievements is our team. We believe in people and shared values SELECT. That’s why, together with Vladyslav Kiriushkin - Engineering Manager at Platform tribe, we’re looking for an Engineering Manager to join our new team transforming the EdTech industry.

What will you do:

• Lead a new team as Engineering Manager and take ownership of delivering the MVP for a new Payments Product: ship the first version, prove value, and take it to production with measurable outcomes.
• Be hands-on early: partner with the team as a strong IC to shape architecture, unblock delivery, and set a high engineering bar.
• Build the technical foundation for a mission-critical product: correctness-oriented workflows, reliable integrations, and production-grade observability.
• Make it reliable from day one: safe rollouts (feature flags, gradual traffic), incident readiness, and an SLO mindset.
• Drive cross-team delivery: align dependencies across Engineering, Product, Finance, and other stakeholders; coordinate changes to existing systems.

• Build the team: hiring, onboarding, team shape, execution cadence, feedback culture, and stakeholder management.

   

What do you need to join us:

• 7+ years of backend engineering experience, with ownership of production services end-to-end.;
• Strong experience building distributed systems (APIs, async processing, databases) and operating them (monitoring, debugging, incidents);
• Proven ability to lead technical decisions and deliver through ambiguity (trade-offs, staged rollout, migrations).;

• Security fundamentals: secrets management, access control, threat-aware design.

   

Would be a plus:

• Experience building financial/transactional workflows with high correctness requirements: idempotency, clear state transitions, audit logs, and safe failure handling.

• Experience in payments/fintech/billing/risk, or heavy third-party integrations.

   

Challenges you will face:

• High stakes + ambiguity: you’ll lead a new product area where correctness and reliability matter, while the MVP-to-platform roadmap is still evolving.
• Hands-on EM reality: balancing management responsibilities with being deeply involved in early architecture and delivery.
• Cross-team coordination: success depends on aligning multiple teams and stakeholders, managing dependencies, and driving decisions when priorities compete.

• Building while shipping: hiring and forming the team while simultaneously delivering production outcomes.

   

What do we offer:

• Work within an ambitious team on a socially impactful education product.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Personal development plan.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.

• Corporate holidays: we take a week-long paid holiday to rest and recharge twice a year.

   

Are you interested?

Send your CV!

The team needs a backend developer with strong experience in Azure cloud development and API integrations to help industrialize a KPI computation solution.
 
The candidate will have to build scalable, cloud-based components that ingest, store, and process data extracted from SharePoint Online via API, preparing it for KPI computation and reporting.
 
The ideal candidate should be comfortable working with REST APIs, data ingestion pipelines, cloud storage, and data processing services, and will contribute to shaping the final solution architecture together with the team.

• Responsibilities:

  The candidate will have to build scalable, cloud-based components that ingest, store, and process data extracted from SharePoint Online via API, preparing it for KPI computation and reporting.

• Mandatory Skills Description:

  5+ years of hands-on Python development and Azure Cloud Development.
  Strong experience developing backend components leveraging Azure cloud services, using Python and/or C#.
  Experience developing containerized applications.
  Solid experience integrating and consuming REST APIs (authentication, pagination, throttling, error-handling).
  
  Required Azure Skills
  Azure Data Factory.
  Azure Storage Account: Queue Storage, Table Storage, Data Lake Storage Gen2.
  Azure Container Registry, Azure Container Apps and/or Azure Kubernetes Service.
  Azure Monitor, Log Analytics, Application Insights.

• Nice-to-Have Skills Description:

  Experience with event-driven architectures.
  Azure Service Bus.
  Azure Event Grid.
  Azure Key Vault.
  Microsoft Entra ID.
  Familiarity with data engineering concepts (data lakes, ETL/ELT pipelines).
  Experience with CI/CD pipelines (Azure DevOps or GitHub Actions).
  Snowflake (data loading, schema design, merge operations) to support downstream integration and reporting activities.
  Ability to write technical specifications and implementation documentation.
  Azure certifications (e.g., AZ-900, AZ-204, DP-900, DP-100).
  Exposure to document/content management systems.
  Familiarity with SharePoint Online or ServiceNow.
  Hands-on experience with SharePoint Online API or Microsoft Graph API.

Responsibilities:

• Lead and manage the day-to-day operations of the L1 Help Desk team (10+ specialists)
• Organize daily support activities: workload distribution, queue monitoring, incident and request prioritization
• Ensure SLA compliance and maintain high service quality standards
• Coordinate incident handling, escalation, and collaboration with L2/L3 and other IT teams
• Support and improve ITSM processes and support workflows
• Onboard, train, and mentor team members; conduct regular 1:1 meetings
• Provide continuous feedback and foster accountability within the team
• Maintain and update support documentation and the knowledge base
• Analyze support metrics and prepare team performance reports

Requirements:

• Experience in IT Support / Help Desk (L1/L2), including coordination or people management responsibilities
• Hands-on experience with the Microsoft ecosystem (Windows, Microsoft 365, Active Directory / Azure AD, Exchange, Teams)
• Understanding of networking fundamentals and common incidents in corporate environments
• Experience working with ITSM tools and structured support processes
• Ability to make decisions under pressure and during incidents
• Strong communication skills and a service-oriented mindset
• Experience in team training, mentoring, and development
• Ownership mentality and result-oriented approach
• Willingness to work from the office

JustMarkets Tech is looking for a Product Manager to strengthen our product team. In this role, you will drive the evolution of our verification processes, enhance user onboarding flows, and implement advanced automation and AI-powered solutions. Your expertise will directly impact key compliance and conversion metrics, improve operational efficiency, and ensure a seamless and secure verification experience for our users.

Responsibilities

• Growth Strategy Leadership:
  Develop and implement a comprehensive product growth strategy aligned with the company’s aggressive expansion goals
  Identify and prioritize opportunities to drive user acquisition, retention, and monetization
• Product Development and Innovation:
  Lead the end-to-end development of new products and features, from ideation to launch
  Foster innovation by staying abreast of industry trends and integrating cutting-edge technologies
• Market Analysis and Customer Insights:
  Conduct in-depth market research to understand customer needs, competitive dynamics, and emerging opportunities
  Utilize customer feedback and data analytics to inform product enhancements and strategic decisions
• Cross-Functional Collaboration:
  Work closely with engineering, design, marketing, and sales teams to ensure cohesive product delivery
  Partner with compliance and legal teams to navigate regulatory landscapes and ensure product adherence to all requirements
• Performance Tracking and Optimization:
  Establish key performance indicators (KPIs) to measure product success and growth impact
  Analyze product performance data to identify areas for improvement and implement actionable solutions
• Stakeholder Engagement:
  Communicate product vision, strategy, and progress to executive leadership and key stakeholders
  Serve as a thought leader and advocate for product-led growth within the organization

Requirements

• Proven experience as a Product Manager with a focus on developing and scaling products
• A strong track record of improving key product metrics such as user engagement, monetization, and retention
• Proficiency in using analytics tools to monitor performance and inform product decisions
• Expertise in managing the product lifecycle and launching new features or enhancements
• Ability to work on core product components: optimizing key processes, integrating new features, and enhancing user experience
• Exceptional problem-solving and decision-making skills
• Strong interpersonal and communication skills to manage diverse teams and stakeholders effectively.
• Bachelor’s degree in Finance, Economics, Computer Science, or a related field

Will be a plus

• Knowledge of trading platforms (e.g., MetaTrader 4/5), financial instruments, and retail trading ecosystems.
• Experience working with crypto exchanges, trading products, or crypto wallets.
• Practical experience running and analyzing A/B tests.
• Strong experience with KYC processes, identity verification workflows, and compliance requirements.
• Knowledge of anti-fraud systems, auto-verification solutions, and related KYC tools.

We offer

• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)

Join a team that's redefining banking technology!

Our client isn't a typical Swiss bank — it's a modern financial institution focused on delivering cutting-edge online trading and financial services. Unlike traditional banks weighed down by legacy systems, their tech stack is lean and innovative.

The team builds products that transform complex, fragmented risk data into clear, actionable insights, enabling smarter and faster decisions to reduce risk. We focus on core business areas such as account risk and work closely with key stakeholders - Risk department, Compliance department, and the Middle Office Fraud Center — to deliver impactful solutions.

You'll be part of a Scrum team of four, collaborating daily with stakeholders through stand-ups, status updates, and Agile ceremonies. We embrace best practices and modern communication tools: Zoom, Teams, Outlook, JIRA, Confluence, and more.

We continuously evolve our solutions to atomic microservices and self-contained systems, based on dockerized environments with CI and CD.

What we offer:
Professional Growth: access to local trainings, on-demand webinars, interactive workshops, and support for conferences and certifications.

Competitive Compensation: Regular annual reviews based on your performance and professional development.

Work-Life Balance & Fun: Team-building activities, corporate events, hackathons, and a variety of engaging initiatives.

If you're proactive, creative, and ready for new challenges, join us! Together, we'll enhance product quality and optimize processes while driving innovation.

• Responsibilities:

  - Overall responsibility for a team, its performance
  - Driving the Scrum processes, coaching the team, driving improvements
  - Contributing towards the technical direction of the products by being involved in technical design and delivery of components
  - Identifying potential risks and escalating to the manager and client
  - Communicating and interacting effectively with other Team Leads
  - Participation in meetings with the client (Stand Ups, Grooming, Planning, Demo, Retro, and other ad-hoc ones)
  - Requirements refinement, Sprint planning, and task estimation
  - Application development
  - Developing unit/integration tests, E2E, ensuring good development testing coverage
  - Lead a team of 3 developers
  - Participate in peer design and code reviews
  - Evaluate and adopt new development tools, libraries, and approaches to improve delivery quality

• Mandatory Skills Description:

  - 1+ year in Team Lead position [fresh experience during last 2 years]
  - At least 5+ years of proven experience in a Software Developer position
  - Java core, Java 11-17+ features
  - OOP/OOD knowledge, design patterns
  - HTML, CSS, JavaScript
  - Proven knowledge of ReactJS, Redux [2+ fresh years of proven experience]
  - Unit testing frameworks (JUnit, Mockito, etc.), experience of integration and E2E tests building
  - Spring framework, IOC
  - RESTfull services
  - Java-based application servers (e.g. Tomcat)
  - SQL knowledge, any RDBMS, Oracle/PostgreSQL is a plus
  - ORM, Hibernate in particular
  - CI tools experience (Jenkins)
  - Docker

   

The position of Data Scientist (Data Analyst & Data Visualisation) combines skills in the field of big data analysis and information visualization. The specialist in this role is responsible for transforming large and complex datasets into clear and informative visual representations. Below are the skills and responsibilities associated with this role:

Preferred Skills:

Data Analysis: A Data Scientist (Data Visualisation) specialist should possess deep data analysis skills, including the ability to identify patterns, trends, and key insights in large volumes of information.

Data Visualization: Proficiency in tools and techniques for data visualization. The ability to create graphics, charts, diagrams, graphs, and interactive dashboards to present data.

Design and Visual Style: Experience in design and an understanding of principles of visual communication. The ability to create visual components that are easy to read and convey information effectively.

Communication Skills: The ability to explain complex data and visualizations to colleagues and clients, as well as to listen to their feedback and improve visualizations as needed.

Requirements:

• Minimum of 2 years as a Python Developer or Data Scientist;
  Knowledge of pandas, libraries for visualizing, experience with API, DataBox, Google Sheets, and Google Scripts (will be a plus);
• Experience in the area of visualizations and Big Data;
• Ability to understand business requirements and translate them into technical requirements starting from architecture level and technological stack proposal;
• Ability to go deep into technical details keeping in mind the whole project scope and architecture;
• Experience in collaboration with cross-functional teams to design, develop, and implement new features;
• Very good written and verbal communication skills in English;
• Familiarity with Azure;

Responsibilities:

1. Data analysis: Collect, cleanse, and analyze large amounts of data to identify key findings and patterns. Prepare data for visualization.

2. Creating visualizations: Developing data visualizations to help users better understand information. This can include creating charts, graphs, diagrams, maps, and even three-dimensional data models. Testing of the graphs (visual elements) we have developed.

3. Interactive dashboards: Develop interactive dashboards that allow users to explore data independently and get the information they need. For example, using DataBox (or analogs), developing your own dashboards on Flask, FastAPI.

4. Performance optimization: Improving the performance of visualizations to work efficiently with large data sets.

5. Collaboration: Working closely with data analysts, data engineers, and customers to meet their data visualization needs.

6. Training and feedback: Training colleagues and users on how to work with data visualizations and taking their feedback into account to continuously improve visual solutions.

7. Keeping up with trends: Keeping up to date with the latest trends in data visualization and implementing them in your work.

Would be a plus

● Understanding of the analytics and statistics;

● A knack for benchmarking page performance and implementing optimization; 

● Experience in pixel-perfect and trendy visuals; 

Dizzain is a full-cycle digital agency working primarily with US-based clients. We build long-term partnerships and run performance-driven marketing campaigns.

Portfolio: https://www.dizzain.com/portfolio/

We’re expanding our marketing team and looking for a Meta Ads Specialist.

Responsibilities

- Plan and execute Meta Ads PPC campaigns

- Optimize performance and scale campaigns

- Analyze data and prepare campaign reports

- Identify growth opportunities for clients

- Use tools: Ahrefs, SEMrush, SpyFu, Google Search Console

Requirements

- Hands-on experience with Meta Ads (Google Ads, LinkedIn Ads, YouTube, TikTok will be a plus)

- Strong understanding of CPC, CPA, ROAS, CLV

- Data-driven mindset and hypothesis testing

- Clear communication and presentation skills

Hi there,

We’re looking for a talented Senior Node.js Developer to help build the next generation of AI-driven finance solutions.

Location: EU

About the project:

Our client provides an AI-powered platform that revolutionises corporate expense management by automating approval workflows, tracking real-time spending, and offering data-driven budgeting insights.

Designed for mid to large-sized businesses (200 to 10,000 employees), the solution ensures scalability and flexibility, enabling greater control over expenses while enhancing employee autonomy.

By replacing traditional expense reports, it streamlines financial processes, helping companies embrace digital finance through intelligent, integrated software!

Requirements:
— 7+ years of backend development experience with production systems
— Proficiency in Node.js for building scalable backend applications
— Strong experience with SQL databases (MySQL, PostgreSQL), including query optimization and performance tuning
— Familiarity with backend frameworks such as Express.js or similar
— Experience working in Agile environments
— Strong analytical and problem-solving skills for performance optimization and system efficiency
— Excellent collaboration and communication skills within cross-functional teams
— Experience with cloud services (AWS, GCP, Azure)
— Familiarity with microservices architecture and containerization (Docker, Kubernetes)
— Knowledge of CI/CD practices
— Strong experience with AI development tools and frameworks
— Upper-Intermediate English level or higher

Responsibilities:
— Design, implement, and maintain scalable, secure, and high-performance backend systems
— Build and manage RESTful APIs for seamless integration and smooth user interactions
— Optimize database queries, manage schemas, and ensure data integrity with large datasets
— Collaborate with frontend engineers, product managers, and cross-functional teams to deliver impactful features
— Contribute to system architecture design, ensuring scalability, resilience, and maintainability
— Participate in code reviews, refactor code for performance, and suggest optimizations
— Ensure backend processes follow security, compliance, and data privacy best practices
— Monitor and optimize backend performance for a smooth user experience

What we offer:
— Flexible Work Environment: Opportunity to work remotely
— Premium Medical Insurance: Comprehensive health insurance for your well-being
— 1:1 English Classes: Individual English language training to enhance communication skills
— Great Team: Supportive, collaborative, and dynamic international team
— Equipment Provided: All necessary equipment supplied for efficient job performance
— Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave
— Commitment to Hiring Ukrainians: Dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work
— Flexible Payment System: Allows you to withdraw funds easily with multiple options

Does this position sound like a perfect match? We’re eager to hear from you!

A global leader in AI-powered IT Service Management (ITSM), building smart platforms that automate IT support and help organizations work faster and smarter. Our solutions are trusted by thousands worldwide, making complex tasks simple so IT teams can focus on what matters most.


Key Responsibilities

• Lead the design, development and maintenance of backend services using Java, Spring and modern frameworks, ensuring scalability, reliability and security.
• Architect and optimize RESTful and asynchronous APIs (GraphQL/gRPC/event‑driven) to support both internal services and external integrations.
• Integrate AI agents and backend services leveraging Large Language Models (LLMs) and other machine‑learning technologies, guiding implementation best practices.
• Drive system architecture discussions and decisions, participate in enterprise‑wide design reviews and contribute to ongoing process and technology improvements.
• Collaborate closely with Product, Frontend, DevOps and Data teams to deliver secure, robust and scalable solutions, translating business requirements into technical specifications.
• Establish and evolve CI/CD pipelines and automated testing strategies (unit, integration, load and security tests) to ensure high code quality and smooth releases.
• Diagnose and resolve complex production issues, perform root‑cause analysis and implement corrective actions to improve system reliability and performance.

Requirements:

• 5+ years of backend development experience with advanced knowledge of Java (Java 8,11+) and deep understanding of OOP, design patterns and clean‑code principles.
• Proven track record building and maintaining enterprise‑grade applications with Spring Framework/Spring Boot.
• Expertise in designing and maintaining RESTful APIs, and familiarity with GraphQL or gRPC.
• Strong SQL/NoSQL experience, including schema design, query optimization and performance tuning.
• Hands‑On experience with microservices architecture and distributed systems design, including event‑driven patterns and domain‑driven design (DDD).
• Experience with message queues (e.g., Kafka, RabbitMQ, Redis Streams, SQS) and streaming platforms.
• Deep understanding of cloud services (AWS EC2, ECS/EKS, RDS, S3, SQS) and infrastructure‑as‑code tools (CloudFormation/Terraform).
• Proficient in CI/CD pipelines (GitHub Actions, Jenkins), Git workflows and automated deployment strategies.
• Strong analytical and problem‑solving skills, with a keen attention to detail and a passion for delivering high‑quality, maintainable software.
•  

Bonus Points

• Exposure to Node.js/TypeScript or other backend languages (Go, Python).
• Experience with observability and tracing tools (Datadog, Prometheus, Grafana, CloudWatch).
• Knowledge of security best practices for cloud and microservices environments (OWASP, IAM, encryption).
• Direct experience building generative‑AI agents or applications, including prompt engineering and integrating vector databases.

About the role

We are looking for a Lead User Acquisition Manager to take full ownership of execution quality, operational processes, and performance delivery within the User Acquisition Department.

This is a hands-on leadership role, reporting directly to the Head of User Acquisition. You will manage a team of 3–6 User Acquisition Managers across different seniority levels and will be fully accountable for the team’s KPIs, execution discipline, ROI, and results.

You are expected to build strong operational processes, maintain high execution quality, and actively participate in performance management. This role requires deep hands-on expertise - not theoretical leadership.

This is a high-impact, high-responsibility role. Results, efficiency, and ROI are the primary measures of success.

Responsibilities

• Team Leadership & Development
  Lead, mentor, and develop a team of User Acquisition Managers. Ensure continuous growth in knowledge, execution quality, and performance across the team.
• Hands-On Performance Management
  Stay deeply involved in daily operations. Be able to step into ad accounts at any moment to diagnose issues, optimize performance, launch campaigns, and demonstrate best practices.
• Budget Ownership at Scale
  Manage and oversee $1M+ monthly advertising budgets across all networks, ensuring disciplined spend allocation, controlled scaling, and performance stability.
• Facebook as a Core Channel
  Be exceptionally strong in Facebook Ads or Google Ads, taking full responsibility for Facebook Ads as the primary acquisition channel.
• Analytics, Insights & Data-Driven Decisions
  Work deeply with performance data and analytics to identify insights, inefficiencies, and growth opportunities. Collaborate closely with the Analytics team to stay continuously informed about funnel performance, attribution, cohort behavior, and overall acquisition efficiency.
• Process & Reporting Setup
  Build, document, and enforce clear UA processes, reporting standards, and performance review cadences. Ensure transparency and full control over daily, weekly, and monthly results.
• Creative Ideation Process
  Build and manage a structured process for sourcing, testing, and iterating creative ideas. Work closely with Creative Managers to continuously identify and scale top-performing creatives.
• Operational Excellence
  Ensure disciplined execution across account structure, testing frameworks, scaling logic, and performance monitoring.
• KPI Ownership
  Take full responsibility for team KPIs, including efficiency and ROI metrics. Results and outcomes are the primary measure of success.

Qualifications

• Senior User Acquisition professional with leadership experience.
• Proven hands-on management of $1M+ monthly advertising budgets.
• Deep, practical expertise in Facebook Ads or Google Ads, with ownership of Facebook Ads as the primary acquisition channel.
• Proven experience managing multiple paid acquisition sources beyond Facebook and Google is a strong plus.
• Strong analytical mindset with the ability to work deeply with data to extract insights.
• Experience collaborating closely with Analytics teams to guide decision-making.
• Focused on high-ROI, efficient scaling, not just spend growth.
• Comfortable working directly inside ad accounts, not only at the reporting level.
• Experienced in training, coaching, and developing UA teams.
• Structured, disciplined, and highly accountable.
• Able to operate effectively in a fast-paced, high-pressure environment.
• Clear, direct communicator focused on results.

Location

Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.

Benefits

Discover the perks of being part of our vibrant team! We offer:

• Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
• Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
• Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
• Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
• Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview?tab=t.0

Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!

Interview Process

After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:

• Recruiter Screening (40 minutes)
• First Interview (60 minutes)
• Final Interview (60 minutes)

Life at Ruby Labs

At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day.

This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen.

Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.

Senior Software Engineer, Full-Stack & AI Systems

Role Overview 

We are seeking a Senior Software Engineer to architect and scale our platform-level agentic AI systems. This role combines full-stack engineering excellence with deep expertise in LLM-powered experiences. You’ll design, implement, and optimize core components across frontend, backend, and model integrations, while driving engineering direction in close collaboration with our co-founders. Your work will directly shape the reliability, speed, and cohesion of company’s multi-agent ecosystem.

Key Responsibilities 

• Architect and implement cross-agent systems that power core platform experiences.
• Build and scale full-stack product components using TypeScript/React and Python services.
• Integrate LLMs into production workflows with strong contracts, observability, and test coverage.
• Develop shared UI components and typed SDKs to unify cross-agent experiences.
• Lead engineering direction, collaborating with founders and cross-functional stakeholders.

Requirements

• Senior-level full-stack experience in React, TypeScript, and Python.
• Proven ability to design, ship, and scale LLM-powered applications.
• Expertise in API design, streaming, and CI/CD pipelines.
• Strong cloud infrastructure background (AWS, GCP, or Azure).
• Track record of building reliable systems with measurable performance and error budgets.

Nice-to-Have 

• Experience with WebRTC or audio-aware UI design.
• Hands-on work with agentic AI frameworks.
• History of creating design tokens, SDKs, or cross-agent platforms.

First-Month Focus

• Audit current cross-agent flows for UI/UX cohesion.
• Implement shared components and typed contracts for reliability.

• Establish instrumentation for frontend performance and model round-trip tracing.

   

Success OKRs (90 Days)

• Deliver end-to-end tested, production-grade agentic workflows with <5% error rates.
• Launch cross-agent design system and SDK used by at least 2 internal teams.
• Establish weekly “deploy and measure” cadence with performance metrics and error budgets.
   

Culture Fit

• Persistent, driven problem solver
• Willing to push back on leadership to defend quality/timelines
• Thrives in high-ambiguity, fast-paced startup environments
   

About Us

👏 Team from OpenAI, DeepMind, NASA, GoogleX, Tesla, and 2 physicians: 6 exits, 2 IPOs.

🔥 Our model outperforms Claude, Gemini, and GPT-4.5 on clinical benchmarks.

📈 400+ healthcare orgs signed in 16 months.

⚡️ $25M raised from YC, Amity Ventures, Sequoia scouts, and more.

🌎 $1T+ market opportunity. We’re going after all of it.

Why Join Us?
🔥 Shape the Future of Healthcare: Build category-defining partnerships that enable doctors to focus on saving lives.
📈 Early-Stage Impact: Join early and play a critical role in shaping our partnership roadmap and overall company growth.
🌎 Remote-First Culture: Work with a talented, mission-driven team in a flexible, remote environment.
💰 Competitive Compensation: Enjoy a competitive salary, equity, and the opportunity to make a real difference.
🏆 Solve Scalability Challenges: Tackle complex challenges in a rapidly growing company, driving impactful change in healthcare.