Jobs at Djinni

About the Role 

We are looking for a strong technical leader to take ownership of production support for a B2B e-commerce platform. 

This role is focused on system stability, incident management, and technical coordination. New feature development is not part of the scope. 

Responsibility, leadership, and communication are top priorities. 

Requirements 

• Strong Python 3.x knowledge 
• Production experience with Django 
• Solid understanding of Django ORM and DRF Strong SQL skills and query optimization 
• Experience with PostgreSQL / MySQL / MS SQL Server 
• Solid understanding of OOP and SOLID principles 

• English level B2+ and higher 

   

Responsibilities 

• Ensure stability and reliability of the production system 
• Investigate and resolve incidents (root cause analysis) 
• Review and validate support-related code changes 
• Optimize backend performance and database queries 
• Coordinate the support team 
• Communicate with stakeholders regarding incidents and system status 
• Make technical decisions within the existing architecture 

Nice to have: 

• Celery / Redis Async programming 
• Experience with e-commerce or B2B platforms 

Important 

• English level B2+ and higher 
• High level of ownership and accountability 
• Ability to handle critical production incidents 
• Strong communication skills 
• Stress resilience

We’re looking for a Senior Database to help address analytics limitations identified during a recent technical audit, strengthen the platform’s security and scalability, and support the migration to a new cloud provider.

Key requirements

• 5+ years of experience with Microsoft SQL Server, including advanced performance optimization
• Strong expertise with Entity Framework 6.x for ORM operations
• Solid experience in database schema design and migration management
• Hands-on experience with connection pooling and database performance tuning
• Strong knowledge of stored procedures and complex query design
• Experience with Cloud SQL for SQL Server and BigQuery architecture/design
• Practical experience building ELT pipelines using Cloud Data Fusion and Dataform
• Knowledge of dimensional modeling
• English: Upper-Intermediate (B2)

Responsibilities:

• Test features against requirements — analyze acceptance criteria, design flexible and resilient test scenarios using test design techniques to maximize coverage and minimize risks.
• Document and prioritize defects — create reproducible steps, attach screenshots/logs, and provide clear descriptions to speed up bug fixing.
• Maintain test documentation — checklists, regression notes. Keep documentation up-to-date and scalable as the product grows.
• Prepare Release Candidates for production:
  • Validate build stability
  • Work with configuration files (JSON): verify flags, values, and conditions affecting production functionality
• Set up and validate A/B tests — help define conditions and ensure experiments run correctly for target user segments.
• Take ownership of quality — understand how testing impacts product, users, and business. Be able to defend quality decisions and take initiative in edge cases.
• Participate in cross-team activities — planning, retros, discussions. Maintain product quality through collaboration with development, analytics, design, and marketing.

Requirements:

• 2+ years of QA experience, preferably in mobile or cross-platform products. 
• Ability to work with requirements, independently design test scenarios, and assess risks.
• Strong understanding of mobile platforms (iOS & Android): architecture basics, UI/UX patterns, background behavior, permissions, and app lifecycle.
• Ability to select test devices — justify device/OS selection based on target audience, market, and product specifics.
• Understanding of iOS Sandbox and Google Wallet — limitations, security policies, and testing specifics for payments and authorization flows.
• Experience with mobile testing and debugging tools:
  • Charles Proxy (traffic interception & analysis)
  • Xcode & Android Studio (logs, simulators/emulators, builds)
  • Jenkins or other CI/CD tools (pipeline & logs understanding)

Would be a plus: 

• Experience in product companies
• API testing experience
• Experience with subscription-based products
• Experience with content-based applications

Employee Benefits:

• Remote-First Culture: Our team is diverse and extensive, just like our product portfolio. We provide a flexible working schedule and let you work anywhere in the world, either remotely or in one of our corporate hubs.
• Сoworking Compensation: We provide 50% compensation for coworking spaces worldwide to make sure that everyone has a comfortable and inspiring workspace.
• Public Holidays Policy: Gismart observes public holidays based on the Ukrainian or Polish holiday calendars. Employees working in other locations are entitled to 12 public holidays per year.
• 100% Sick Leave Compensation
• Mental and Physical Health: To help you stay happy and healthy, Gismart will partially cover your medical insurance, sports activities, and therapy costs.
• Personal Equipment Policy: Of course, we’ll provide you with all the equipment you need or cover the maintenance cost for your own tools.
• Personal Learning and Development: We love to see you learn and grow, so Gismart will cover 70% of your professional development courses. We’ll also pay for 100% of corporate English courses.
• Time-Off Policy: Every employee gets 18 working days of paid vacation and 3 personal days per year, with an extra day added for each year at Gismart.
• Corporate Events: We are remote-first, but we love meeting up in person. Whenever possible, we organize corporate events and team-building activities across all Gismart hubs.

Almus is looking for a Data Scientist to join our Analytics team and build production-grade machine learning models that directly impact marketing and business performance.

You will work on end-to-end ML solutions, from data and features to deployment and monitoring, focusing on improving LTV prediction quality, optimizing ML-driven costs, and driving key metrics such as LTV, ROAS, retention, and CAC. This is an individual contributor role with strong ownership, close collaboration with Marketing, Product, and Data teams, and a clear focus on real business impact.

Apply to join Almus and take ownership of high-impact data initiatives!

Responsibilities

• Design, develop, and deploy machine learning models to production
• Improve product and business decision-making through data-driven approaches
• Build and evolve end-to-end ML pipelines (data → features → model → inference → monitoring)
• Drive measurable impact on key product and commercial metrics
• Standardize ML approaches within the team (best practices, documentation, reproducibility)
• Provide technical input to the architecture of analytics and ML infrastructure
• Develop and deploy models that drive growth in LTV, ROAS, retention, and CAC
• Influence performance and lifecycle marketing strategy
• Act as a domain expert and collaborate closely with Marketing, Product, and Data Engineering teams

What We Look For

• 3+ years of experience as a Data Scientist / ML Engineer
• Experience working with mobile subscription-based products
• Strong Python skills (production-level code)
• Solid knowledge of classical machine learning algorithms and practical experience applying them
• Experience with feature engineering, model evaluation, and bias–variance trade-offs
• Hands-on experience with marketing models such as LTV, churn, cohort, and funnel modeling
• Experience with attribution, incrementality, and uplift modeling
• Strong SQL skills and experience working with analytical datasets
• Experience with production ML systems and A/B testing

• English level: Intermediate+

   

Nice to have

• Experience with BigQuery
• MLOps experience (Docker, CI/CD, model registres)
• Experience working with performance marketing data (Meta, Google Ads, Adjust)
• Knowledge of causal inference

• Experience with AutoML and Bayesian models

   

We Offer

• Exciting challenges and growth prospects together with an international company
• High decision-making speed and diverse projects
• Flexibility in approaches, no processes for the sake of processes
• Effective and friendly communication at any level
• Highly competitive compensation package that recognizes your expertise and experience, Performance Review practice to exchange feedback and discuss terms of cooperation
• Flexible schedule, opportunity to work in a stylish and comfortable office or remotely
• Respect for work-life balance (holidays, sick days - of course)
• Bright corporate events and gifts for employees
• Additional medical insurance
• Compensation for specialized training and conference attendance
• Restaurant lunches at the company's expense for those working in the office, endless supplies of delicious food all year round
   

Welcome to Drawer.AI!

- What we do: AI-driven workflows that let estimators pull quantities and costs from complex PDF drawing sets.  
- Stage: Seed-funded, revenue-generating, aiming for a Series A in 2026.  
- Why join now: Real customers are pushing our roadmap faster than our current front-end team can build.

We’re looking for a Senior React Developer (WebGL / Three.js) to build interactive, high-performance WebGL features for a product environment. This is a hands-on role with ownership over rendering architecture, performance, and user experience.

Key Responsibilities:

• Build interactive web experiences using WebGL & Three.js.
• Integrate WebGL functionality into React-based web applications.
• Optimize performance, rendering pipelines, and browser memory usage.
• Work closely with product and cross-functional engineering teams.
 

Requirements:

• 8+ years of experience in frontend development.
• Strong hands-on experience with React.
• 3+ years of hands-on experience with Three.js / WebGL.
• Solid knowledge of JavaScript and TypeScript.
• Experience with WebGL performance optimization.
• Product-oriented mindset and ability to work independently.
• Senior-level ownership and technical decision-making.

Nice to have:

• React Three Fiber.
• GLSL / shaders.
• Experience working with complex visual or interactive web interfaces (edited).

Join our stellar team at Drawer.AI, where excellence meets opportunity! Experience the exceptional; enjoy a competitive salary and career advancement and the outstanding work environment we take pride in. Elevate your professional journey with us – because we believe in creating success together. Build a better future with us!

🌿About the company
RYVE is a brand of inspirational and lifestyle products selling on Amazon.com and Amazon.ca. You can explore the product portfolio here: amazon.com/ryve

🔹 7 years in the market

🔹 team of 22 people

🔹 annual revenue of ~$2.3M. 

RYVE is not an early-stage startup. It is a profitable, well-structured business with solid data, modern tooling, and clear processes.

This role is designed for someone who is comfortable taking full ownership of Amazon operations. The focus is not aggressive scaling, it’s execution quality, profitability, and continuous optimization of an already strong product portfolio. You will work directly with the Founder, gain access to advanced Amazon frameworks and communities, and turn insights into measurable performance improvements.

We are looking for someone proactive, structured, and operationally strong, the person who is able to confidently manage the day-to-day of an Amazon brand while steadily improving commercial performance.

🎯Mission of the role

As an Amazon Brand & Operations Manager, you will

🔸Own and continuously improve RYVE's Amazon operations and commercial performance

🔸Drive month-over-month gains across listings, inventory, promotions, and account health

🔸Contribute directly to sustainable profit growth through execution quality

🔸Inform product development with data, customer insights, and market feedback

You will

🔸Report directly to the Founder and CEO

🔸Work closely with the PPC management, graphic design, and product development teams

🔸Serve as the single point of accountability for all Amazon and marketplace operations

  ⚙️ What You'll Be Doing

🔹Own and manage listing optimization, keyword research, and CRO experiments, briefing the design team on asset improvements

🔹Maintain Seller Central operations, including account health, reimbursements, and troubleshooting

🔹Drive pricing strategy, manage deals, and run promotional campaigns

🔹Handle inventory and supply chain planning, i.e., forecasting, purchase orders, inbound shipments, and FBA stock levels

🔹Identify inefficiencies and implement process improvements and light automation

🔹Keep secondary marketplaces such as Etsy, Faire, and Shopify running smoothly with minimal maintenance

Experience and skills:

🔸3-5+ years of hands-on Amazon FBA experience at 7-figure revenue scale

🔸Full end-to-end ownership of listings, inventory, pricing, promotions, and Seller Central

🔸Advanced Google Sheets skills i.e. forecasting and operational analysis

🔸Proficiency with Helium10, DataDive, or comparable tools

🔸English B2 (Upper Intermediate) 

It will be a plus if you have experience with: 

🔹Scale Insights or similar bid management tools

🔹Looker Studio or equivalent BI and dashboarding tools

🔹Gorgias or equivalent customer service platforms

🔹Sellerise, TrueOps, or similar reimbursement tools

🔹Listing experiments and CRO tests

🔹Advanced Amazon analytics stacks and automation workflows

  💼Compensation and Benefits
 

🌴 20 paid vacation days per year + local public holidays with flexible scheduling

🌍 Fully remote with flexible hours (minimum 2–3 hours daily overlap with CET required)

🚀 Direct access to the founder, advanced analytics stack, and elite Amazon communities & masterminds

If you feel this role is a strong match for your experience, we’d love to hear from you!

Gainway is looking for a creative Motion Designer to help produce effective video creatives for advertising campaigns.

Responsibilities:

- Create video creatives for ads (Reels, short-form videos)

- Work with existing content and adapt it for new tasks

- Generate videos using AI tools

- Edit videos, create GIF animations, and basic graphic design

- Analyze advertising trends and improve the approach to creatives
 

Requirements:

- Motion Designer with at least 1 year of experience

- Skilled in Adobe After Effects, Premiere Pro, Illustrator, and Photoshop

- Experience using AI in video creation (Higgsfield, Runway, etc.)

What the company offers:

- Competitive salary (negotiable individually)

- Fully remote work

- A supportive team that gives space for ideas

- Opportunity for long-term growth in the digital environment

 

Client

Our client is a leading global investment company dedicated to delivering innovative investment solutions. They maintain operational excellence by prioritising seamless IT service management and proactive incident resolution to minimise business impact and ensure high service quality across their applications and platforms.

Team

The successful candidate will join the IT Application Support team and work closely with colleagues to manage business‑critical incidents, drive timely resolutions, and support continuous improvement initiatives in collaboration with internal IT teams and external providers.

Position overview

Our client is looking for an Application Support Analyst who will be responsible for managing incidents across multiple applications. The primary goal of this role is to restore normal service operations quickly while minimising business disruption, investigating root causes, and implementing durable fixes.

You will also support change initiatives aligned with Change Management practices and proactively enhance support capabilities through automation, monitoring improvements, trend analysis, and knowledge sharing.

Support is provided within an 8 AM – 6 PM window on a shift basis (UK time), with variable start times (8, 9, or 10 AM) to complete an 8‑hour workday. Out‑of‑hours on‑call support is required on a rotational basis approximately once every 4–5 weeks (covering the full work week and weekend).

Responsibilities

• Ensure team services meet client requirements and SLAs.
• Support the management of business‑critical incidents, providing accurate status and impact updates to stakeholders.
• Investigate incidents and defects thoroughly while maintaining system and service integrity.
• Record and update incidents according to the Incident Management Matrix and SLAs, ensuring timely resolution and service restoration.
• Identify and escalate operational risks related to capacity and performance to prevent service degradation.
• Adopt and promote ITIL and service management best practices, ensuring alignment across processes and controls.
• Maintain effective support processes for software and systems across platforms with clear escalation paths.
• Provide technical support and guidance to users, liaising with IT teams and third‑party vendors for complex issues.
• Participate in shift and out‑of‑hours support rotas to ensure coverage for critical systems.
• Assist with onboarding and training new team members, maintaining documentation, runbooks, and knowledge articles.

Requirements

• Recent experience with InterSystems Caché and ObjectScript, including coding and debugging.
• Familiarity with SQL for investigation, reporting, and remediation activities.
• Experience with software transition and release management, QA/UAT support, and disaster‑recovery planning.
• Ability to produce clear technical documentation, use cases, and activity diagrams.
• Good spoken English.
• End‑to‑end support experience, including incident and problem management, trend analysis, and post‑incident reviews.

Nice to have

• Degree in Computer Science or an equivalent technical qualification.
• IMC or similar certifications demonstrating knowledge of the investment management domain.
• Experience working in investment management firms with an understanding of investment operations.
• Proficiency with Microsoft Office and familiarity with ITSM/ticketing tools and monitoring platforms.

Client

Our client is a leading global investment company dedicated to delivering innovative investment solutions. They focus on maintaining operational excellence by prioritising seamless IT service management and proactive incident resolution to minimise business impact and maintain high service quality across their applications and platforms.

Team

The successful candidate will join the IT Application Support team and will work closely with colleagues to manage business-critical incidents, drive timely resolutions, and support continuous improvement initiatives through collaboration with various IT teams and external providers

Position overview

As an Application Support Analyst, you will be responsible for incident management across multiple applications. Your primary focus will be restoring normal service operations swiftly while minimising business disruption, investigating root causes, and implementing durable fixes. You will support change initiatives aligned with Change Management practices and proactively enhance support capabilities by driving automation, monitoring, trend analysis, and knowledge transfer.

Support is provided within an 7 AM to 6 PM window on a shift basis (UK time zone), with flexibility on start times to complete an 8-hour working day.

Responsibilities

• Ensure team services meet client requirements and SLAs
• Support management of business-critical incidents, providing accurate status and impact updates to stakeholders
• Investigate incidents and defects thoroughly, maintaining system and service integrity
• Record and update incidents in line with Incident Management Matrix and SLAs, driving timely resolution and service restoration
• Identify and escalate operational risks related to capacity and performance to avoid service degradation
• Adopt and promote ITIL and service management best practices, ensuring alignment of processes and controls
• Maintain effective support processes for software and systems across platforms with clear escalation paths
• Provide technical support and guidance to users, liaising with IT teams and vendors for complex issues
• Participate in shift and out-of-hours support rota to ensure service coverage for critical systems
• Assist with onboarding and training new team members, maintaining documentation, runbooks, and knowledge articles

Requirements

• Recent experience with Centura, including coding and debugging
• Familiarity with SQL for investigation, reporting, and remediation
• Experience in software transition and release management, QA/UAT support, and disaster recovery planning
• Ability to produce clear technical documentation, use cases, and activity diagrams
• End-to-end support experience including incident and problem management, trend analysis, and post-incident reviews
• Degree in Computer Science or equivalent technical qualification
• Good spoken English

Nice to have

• Familiarity with Sybase DB
• Experience within Investment Management firms with understanding of investment operations
• Familiarity with ITSM/ticketing tools and monitoring platforms

Our team builds mobile applications that drivers use every day for navigation and routing. Because these tools are used in real-world conditions, they must work reliably across a wide range of devices and locations. We support our apps with scalable backend services and vehicle integrations that transform data into intelligent routing and location insights. We value clean engineering practices and continuously improving our products.

We are looking for a Mobile Developer to help build our next-generation Android and iOS applications. In this role, you will contribute to designing and developing apps using Kotlin Multiplatform. Your goal will be to share core business logic across platforms while ensuring the final user experience remains native, fast, and intuitive for drivers.

Job Responsibilities

• Design fast and efficient Android applications optimized for low memory usage to ensure smooth performance on vehicle hardware
• Lead the development process with a strong focus on driver safety, using code reviews and testing to prevent glitches or distractions
• Mentor junior developers, supporting their technical growth and promoting best engineering practices
• Use SDKs to develop mapping and location features that integrate seamlessly with vehicle dashboard systems
• Stay up to date with the latest Android technologies, including Kotlin and Jetpack Compose, to guide informed technical decisions

Job Requirements

• ~9 years of experience in software engineering, including at least 2–3 years in a technical lead or senior-level role
• Expert-level proficiency in Kotlin, Kotlin Multiplatform, and Jetpack Compose
• Proven experience in developing end-user applications
• Deep understanding of Android platform architecture, lifecycle management, and system constraints
• Strong problem-solving skills with the ability to balance technical excellence and business requirements
• Excellent communication skills and the ability to collaborate effectively across teams
• Proactive mindset with the ability to lead a standalone team in close cooperation with the customer
• Experience with navigation or mapping services is a plus

We are looking for a Marketing / Social Media Specialist to support the development of the Greenbin.app mobile application and the launch of a pilot project in Ukraine with an international FMCG brand.

The main goal of this role is to create social media content that helps users better understand how the app works and increases user engagement.

Responsibilities:

• Create content for social media (Instagram, Threads, Facebook, etc.)
• Explain to users how Greenbin.app works and how to scan different types of packaging
• Produce short videos demonstrating how to use the app (Reels / TikTok)
• Share recycling results, user stories, and project updates
• Support the community and respond to comments and messages
• Test different content formats that help increase app installs and user engagement

Requirements:

• Experience managing social media accounts
• Ability to create simple, clear, and engaging content
• Basic understanding of mobile app marketing
• Experience working with short-form video content (Reels / TikTok)
• Creative mindset and hands-on approach

Format: part-time / contract.

We are a Ukrainian product company developing a growing gaming platform and are looking for a Backend (Node.js) Developer to join our team.

Requirements

• 4+ years of hands-on experience with Node.js
• Experience working with MySQL
• Hands-on experience with Kafka
• Understanding of building scalable, high-performance backend services
• Experience writing clean, testable, and maintainable code
• English level B1 or higher

Responsibilities

• Develop reusable, testable, and efficient backend code
• Design and build low-latency, highly available, and high-performance services
• Implement data security and protection mechanisms
• Integrate data storage solutions (databases, key-value storage, etc.)
• Collaborate with DevOps on application deployment across environments
• Improve and unify backend services across the product

Nice to Have

• Experience with Redis
• Experience with CI/CD pipelines (GitLab is a plus)
• Experience with Fastify
• Experience with Sequelize

What We Offer

• Work in a strong product team
• Flexible working hours
• Medical insurance
• Sports compensation
• Psychological support
• Free language classes (English, Spanish, German)
• 18 paid vacation days + paid sick leave
• Team buildings and corporate events
• All necessary equipment for comfortable work

We are looking for a Senior Data Scientist who can deliver end-to-end solutions, communicate both technical and business aspects to clients, and take ownership of production outcomes — helping Dastellar fulfill its mission to build custom AI/ML/Data Science solutions for businesses.

General Requirements:

• 5+ years in ML/Data Science.
• Strong experience with classical ML: sklearn, XGBoost/LightGBM, time-series models (ARIMA/Prophet/ETS or deep models), and recommender systems.
• Python 3.8+ proficiency; solid Pandas/NumPy; production-level experience with PyTorch or TensorFlow.
• Experience deploying ML models (Docker, CI/CD); basic cloud skills (AWS/GCP/Azure) preferred.
• Ability to communicate technical concepts to clients and translate risks into business impact.
• Autonomous and proactive; history of leading end-to-end tasks.
• English: B2+.
   

Nice-to-have / Growth Opportunities:

• LLM/GenAI experience: fine-tuning GPT/LLaMA/Hugging Face, building RAG/embedding pipelines, LangChain.
• Vector DBs: FAISS, Qdrant, Pinecone.
• MLOps basics: MLflow, W&B, CI/CD pipelines.
• Big Data: Spark, advanced SQL optimization.
• Domain expertise: energy or retail.
   

Main Responsibilities:

• Build classical ML models (classification, regression, clustering, recommendation, time-series).
• Data cleaning, validation, feature engineering, ETL/ELT pipelines.
• Design and deploy ML/GenAI solutions from POC to production.
• Integrate models with infrastructure (Docker, CI/CD; optionally Kubernetes/serverless).
• Monitor model performance and system health (metrics, data drift, alerts).
• Document solutions, create client presentations, and conduct R&D experiments.
• Maintain code quality: tests, reviews, reproducibility.
   

Soft Skills:

• Responsibility & ownership: end-to-end project delivery, meeting deadlines, post-release SLAs.
• Proactivity: proposing and implementing process or architecture improvements.
• Autonomy & problem-solving: translating ambiguous business goals into MVP roadmaps.
• Critical thinking: identifying data/assumption biases and proposing mitigation strategies.
   

What We Offer:

• Flexible part-time / contract work.
• Fast decision-making and low bureaucracy.
• Influence over architecture and stack choices.
• Remote collaboration and flexible schedule.
• Paid R&D participation (by agreement).

We are seeking a Vendor Manager who is responsible for defining detailed technical requirements for IT solutions and recommending optimal architectures based on customer needs. This role involves end-to-end coordination of individual projects, participating in pre-sales activities, conducting negotiations and presentations, and performing on-site assessments alongside both internal and external experts.

Responsibilities:

• Promote the company’s IT products and solutions
• Develop and manage a partner ecosystem
• Collaborate with solution providers to expand and enhance the technology portfolio
• Prepare supporting and sales-enablement materials together with the B2B team
• Participate in go-to-market initiatives, including training sessions and Solution Assessments
• Drive improvements in operational processes to increase efficiency
• Contribute to improving product quality and strengthening the company’s competitive advantages

Requirements:

• Higher education in a technical field (preferably Telecommunications), Economics, or Project Management.
• At least 3 years of professional experience.
• Proven experience working with IT vendors and solution providers, including technical solution development and commercial/price negotiations.
• Hands-on experience in customer-facing roles (e.g., Project Manager, Technical Project Manager, Technical Account Manager).
• Strong verbal and written communication skills.
• Experience in preparing and maintaining technical documentation.
• English proficiency at intermediate level or higher for communication with global teams.
• Industry-recognized certifications in the relevant solution area are a plus.

Technical Lead — Promotional Features Tech Team “Boosters”

Focus: High-load, distributed, player-facing promo features (network promotions)

Role type: Hands-on Tech Lead (80% delivery / 20% team leadership)

Why this role

We’re scaling Playson’s Promotional Features domain and building the Boosters direction further as part of our growth. This is a hands-on leadership role where you’ll personally build and ship production-ready features and own the technical direction of the Boosters team. Performance, scalability, and reliability are non-negotiable.

Boosters is responsible for player-facing network promotional features such as:

• Tournaments
• Free Spins
• Progressive Jackpots
• Smart Prize Drop Systems

Team & Collaboration model

Tech Boosters is an end-to-end cross-functional squad including:

• Full-stack & Backend Engineers
• Automation QA & Manual QA
• SRE

Product Boosters

• Product Manager
• Product Designer
• Product Analyst

There is no classic Product Owner/PM in the squad. You’ll work with a product commercial manager who acts as the customer — defines what is needed, why and how fast it is needed on the market. Your tech team owns how it will be built and when it will be delivered.

What you bring:

• Strong proficiency in Node.js and TypeScript (our primary backend stack). We’re also open to strong backend engineers from other ecosystems (e.g., Go, Java, C#, C++) who are ready to ramp up quickly.
• Strong understanding of asynchronous programming and concurrency patterns.
• Experience building distributed systems and working with messaging and coordination tools (e.g., Kafka, RabbitMQ, NATS, distributed locks).
• Experience with gRPC in production environments.
• Solid knowledge of databases: relational (MySQL, PostgreSQL), columnar (ClickHouse), and NoSQL (DynamoDB, MongoDB).
• Experience with cloud platforms (AWS/GCP/Azure) and Kubernetes.
• Skilled in building and maintaining unit and end-to-end tests.
• Proven track record of delivering production-ready solutions.
• Experience working with large-scale microservices architectures.
• Degree in Computer Science or a related field (or equivalent practical experience).

Preferred additional qualifications:

• Understanding of application security and industry best practices.

What you will be doing:

• Own technical decisions and technical part of the products and architecture for Boosters services (hands-on, production-grade).
• Develop and maintain backend applications for promotional features.
• Drive delivery as a key contributor: tech design → implement → test → release → operate.
• Optimize existing systems for performance, scalability, and reliability in a distributed environment.
• Lead the team execution with a “PoC-first” approach: fast validation → measurable outcomes → production hardening.
• Conduct code and architectural reviews; set engineering standards and best practices.
• Be the go-to technical owner: any tech problem in the domain is your problem to solve (with the team).
• Participate in on-call rotation and continuously improve operability (monitoring, alerting, runbooks, incident reviews).
  What we offer:
• Remote-first with flexible working arrangements across Europe or Ukraine
• Competitive compensation package (with performance-based bonuses up to 50%)
• Unlimited paid vacation & sick leave (B2B model)
• Premium health insurance (for you + 1 family member)
• Learning & development support (courses, certifications, mentoring, conferences)
• International exposure — attend industry expos, team gatherings & global meetups