Jobs at Djinni
10029-
Β· 475 views Β· 69 applications Β· 2d
Senior Backend QA Engineer
Full Remote Β· EU Β· Product Β· 3 years of experience Β· English - B2Description Our team is working on providing a quality assurance for a set of services that support the company's operational activities starting from the gaming platform itself, back-offices, APIs and ending with our websites. We are a team that is...Description
Our team is working on providing a quality assurance for a set of services that support the company's operational activities starting from the gaming platform itself, back-offices, APIs and ending with our websites. We are a team that is working towards step-by-step improvement of our job processes.
We are looking for a team member who would be able to perform manual testing of web interfaces and API methods.
We work remotely, formal meetings are kept to a minimum - one stand-up per week, and the rest according to the work needs. Our focus is the balance between product quality and results for the business, to maintain the project's long-term sustainability and the team's great mood in the process.
We strive to deliver a product that we can be proud of :)
Requirements
3+ years experience in manual testing;
Experience with API tests, functional testing and logging;
Basic knowledge of coding principles;
Decent level of experience based testing;
Good level of written English;
Ability to efficiently organise your own working hours.
ResponsibilitiesStrong focus on API methods testing;
UI/UX/functionality testing of our web interfaces (focus on functionality);Test cases and technical documentation writing;
Collaboration with team members on different work aspects.
Technology stack
Jira;Testrail/Testmo;
Postman (POST/GET requests understanding, URL structure, data types);
Browser Console;
Kibana or any other log collector.
BenefitsWhy Join Us?
π° Be part of the international iGaming industry β Work with a top European solution provider and shape the future of online gaming;
π A Collaborative Culture β Join a supportive and understanding team;
π° Competitive salary and bonus system β Enjoy additional rewards on top of your base salary;
π Unlimited vacation & sick leave β Because we prioritize your well-being;
π Professional Development β Access a dedicated budget for self-development and learning;
π₯ Healthcare coverage β Available for employees in Ukraine and compensation across the EU;
π« Mental health support β Free consultations with a corporate psychologist;
π¬π§ Language learning support β We cover the cost of foreign language courses;
π Celebrating Your Milestones β Special gifts for lifeβs important moments;
β³ Flexible working hours β Start your day anytime between 9:00-11:00 AM;
π’ Flexible Work Arrangements β Choose between remote, office, or hybrid work;
π₯ Modern Tech Setup β Get the tools you need to perform at your best;
π Relocation support β Assistance provided if you move to one of our hubs.
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Β· 341 views Β· 90 applications Β· 2d
Junior Project Manager to $800
Full Remote Β· Countries of Europe or Ukraine Β· 0.5 years of experience Β· English - B1We are looking for a Junior Project Manager who will be responsible for managing around 3 active projects simultaneously. You will work closely with clients and internal development teams, coordinate project activities, track progress, and help ensure...We are looking for a Junior Project Manager who will be responsible for managing around 3 active projects simultaneously.
You will work closely with clients and internal development teams, coordinate project activities, track progress, and help ensure timely and high-quality delivery.This role is a great fit for someone who already has initial experience in project management and wants to grow further in a supportive, remote-first team.
Required skills
- Up to 1 year of experience as a Project Manager or in a related coordination role in the tech industry
- Strong understanding of software development methodologies (Agile, Scrum, etc.), project management tools and software
- Experience working with project management tools (Jira, Trello, Notion, or similar)
- Good communication skills and the ability to work with both technical and non-technical stakeholders
- English level: B1 or higher
Responsibilities
- Managing around 3 projects
- Communication with clients and internal teams
- Coordinating project teams and daily activities
- Tracking project progress, timelines, and deliverables
- Preparing and updating project plans, roadmaps, and schedules
- Managing client expectations and supporting clear communication
- Identifying risks and helping to improve project processes
- Preparing and presenting project updates and reports
We offer
- Friendly team
- Remote-first culture β work from anywhere!
- Flexible schedule
- Comprehensive paid leave package.
- English classes
- Welcome pack
- Celebration perks
Hiring Process
- HR interview
- Test task
- General interview
Good luck! Weβll be happy to see you in our team.
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Octy -
Β· 89 views Β· 16 applications Β· 2d
Data Engineering Lead
Full Remote Β· Worldwide Β· Product Β· 5 years of experience Β· English - NoneAbout Traffic Label Traffic Label is a performance marketing and technology company with nearly two decades of experience driving engagement and conversion across the iGaming and digital entertainment sectors. Weβre now building a Customer Data Platform...About Traffic Label
Traffic Label is a performance marketing and technology company with nearly two decades of experience driving engagement and conversion across the iGaming and digital entertainment sectors.
Weβre now building a Customer Data Platform (CDP) on Snowflake and AWS - unifying player data across multiple brands to power automation, insights, and personalization.
The Role
Weβre looking for a Data Engineering Lead to own the technical delivery and development of this platform. Youβll architect scalable pipelines, lead a small team, and ensure data reliability, accuracy, and performance.
Team size: 3β4 engineers/analysts
Key Responsibilities- Design and implement scalable data pipelines processing millions of events daily
- Own Snowflake data warehouse architecture, optimization, and cost control
- Lead the engineering team through delivery and performance improvements
- Ensure >95% data accuracy and 99.9% pipeline uptime
- Collaborate with marketing, analytics, and compliance teams to align data with business goals
Requirements
- 5+ years in data engineering, 2+ in leadership roles
- Expert in Snowflake, SQL, and Python
- Proficient with AWS (S3, Lambda, IAM) and orchestration tools (Airflow, dbt, etc.)
- Strong understanding of data governance, cost optimization, and performance tuning
- Experience with iGaming data, Kafka/Kinesis, or MLflow is a plus
Why Join Us
- Build a core data platform from the ground up
- Competitive salary and performance bonuses
- Flexible remote or hybrid work across Europe
- Supportive, innovative, data-driven culture
Ready to lead a data platform that powers smarter decisions across global iGaming brands?
More
Apply now to join Traffic Labelβs Data & Technology team. -
Β· 22 views Β· 13 applications Β· 2d
IoT Solution Consultant to $2000
Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 1 year of experience Β· English - B1Who We Are Looking For: We are seeking a proactive and ambitious Junior Sales Manager who is passionate about technology and sales. If you are eager to learn, grow in a dynamic environment, and start your career in international B2B sales, this is a great...Who We Are Looking For:
We are seeking a proactive and ambitious Junior Sales Manager who is passionate about technology and sales. If you are eager to learn, grow in a dynamic environment, and start your career in international B2B sales, this is a great opportunity for you!
Responsibilities:
β’ Research and identify potential clients in the IoT and Cloud industries.
β’ Reach out to prospects via email, LinkedIn, and other communication channels.
β’ Qualify leads and schedule introductory calls with the sales team.
β’ Support the sales team with CRM data entry, follow-ups, and reporting.
β’ Assist in preparing presentations and sales materials.
β’ Participate in exhibitions and industry events (optional).
Requirements:
β’ Experience: 6+ months in sales, lead generation, or customer-facing roles (IT industry experience is a plus).
β’ Education: Bachelorβs degree in Business, IT, or a related field.
β’ Strong communication and interpersonal skills.
β’ Basic understanding of IT, Cloud, and SaaS concepts.
β’ Willingness to learn and develop sales techniques.
β’ Experience with CRM tools (or readiness to learn).
β’ Languages: Strong English (B2 or higher).
β’ Self-motivated, goal-oriented, and eager to grow in sales.
What We Offer:
β’ Structured onboarding and mentorship from experienced sales professionals.
β’ Competitive salary with a performance-based bonus system.
β’ Opportunities for international networking and career development.
β’ A supportive and dynamic team environment.
Are you ready to start your sales career in the IoT and Cloud industry? Apply now!
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Β· 5 views Β· 1 application Β· 2d
IoT Solution Consultant to $2000
Full Remote Β· Countries of Europe or Ukraine Β· 1 year of experience Β· English - B2Who We Are Looking For: An ambitious, motivated, and energetic junior sales professional with a strong interest in technology and solution-based selling. Eager to work in a fast-paced environment, take on new challenges, and contribute to closing deals in...Who We Are Looking For:
An ambitious, motivated, and energetic junior sales professional with a strong interest in technology and solution-based selling. Eager to work in a fast-paced environment, take on new challenges, and contribute to closing deals in the IoT and Cloud markets. Familiarity with solar panels, inverters, battery systems, and BESS solutions is a strong advantage and will support the successful sale of our new product.
Responsibilities:
- Identifies, qualifies, and cultivates new sales opportunities through multiple mediums (email, phone, trade shows, inbound website leads, and more).
- Maintains a high level of attention to detail managing all respective sales activities (notes, follow-ups, emails, call logs) within CRM tool.
- Responds to inquiries via email, LinkedIn, other social networks.
- Responsible for achieving aggressive weekly targets such as number of qualified opportunities per campaign, number of daily activities/tasks, call quality, appointment setting, and sales skills.
- Qualifying potential opportunities and scheduling initial product presentations between prospects and our sales team.
- Over time, Sales Manager will also be conducting product demonstrations for prospective customers and will develop into a product expert.
Requirements:
- Experience: 3+ months of experience selling into international markets (outside Ukraine) is a plus. We are also open to candidates with a technical background who are eager to grow into a sales role.
- Education: Bachelorβs degree in industrial, engineering, or IT-related fields is a plus.
- Skills:
- Basic understanding of IT and IoT concepts
- Strong negotiation skills with the ability to support deal progression and closing
- Hands-on experience with CRM tools or sales pipelines
- Experience in direct written communication with clients and stakeholders
- Understanding of technical solutions and implementations in the solar energy domain (e.g., solar panels, inverters, batteries, BESS)
- Languages: English (B2βΠ‘1 level)
- Mindset: High motivation, strong work ethic, and a results-driven approach
What We Offer:
- A fast-growing and innovative work environment
- Competitive salary with an attractive commission model
- Opportunities for international networking and career growth
- Dynamic and supportive team
- Work flexibility: Hybrid / Remote options available
Are you ready to build your career in IoT and Cloud sales
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Β· 207 views Β· 60 applications Β· 2d
Senior Backend Engineer (PHP)
Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - B1The Senior Backend Engineer will develop and support microservices related to billing and subscription management, focusing on performance, reliability, and scalability. This role involves developing a SaaS platform based on PHP services and integrating...The Senior Backend Engineer will develop and support microservices related to billing and subscription management, focusing on performance, reliability, and scalability.
This role involves developing a SaaS platform based on PHP services and integrating the services with payment gateways and payment orchestrators.
Responsibilities:
- Build and maintain microservices for subscription lifecycles, billing retries, and payment handling.
- Work on APIs for managing subscriptions, invoicing, and payment gateways.
- Optimize billing systems for performance and scalability, ensuring they can handle large volumes of transactions.
- Collaborate with the analytics team to implement accurate billing cycles and manage financial reporting.
- Ensure all services adhere to secure communication standards and manage interactions with external orchestrators.
What we look for:
- 5+ years of experience with PHP in backend development.
- 2+ years of experience with Go or similar language.
- 2+ years of experience working with billing systems, including subscription management, payment processing, and handling chargebacks.
- Familiarity with modern PHP frameworks (Laravel, Symfony, etc.) and best practices for building scalable microservices in a cloud-native environment.
- Familiarity with k8s, Victoria Logs, Docker , PostgreSQL, Grafana and Prometheus, particularly for monitoring billing services.
- Experience with SQL and NoSQL databases used in billing systems.
- Experience with RESTful APIs, gRPC, and message queues used for financial systems.
- Nice to have: Experience with RoadRunner and Temporal.
We offer:
- A supportive atmosphere β weβre all for creativity and providing opportunities for self-fulfillment.
- Working on inspiring products in a team of supportive professionals.
- A competitive salary package based on your unique expertise, skillset, and impact on the product.
- Reimbursement of professional courses and trainings.
- In-office, and hybrid/remote work opportunities.
- Flexible working hours.
- Professional equipment and access to the necessary programs.
- Paid vacations, sick days, and other benefits.
- Medical insurance.
- Free lunches in the office.
- A variety of corporate events and team-building activities.
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Β· 10 views Β· 1 application Β· 2d
Business Development Manager (BDM) to $1000
Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 1 year of experience Β· English - B1Who We Are Looking For: An ambitious, driven, and energetic individual with a passion for sales and technology. Someone who is ready to take on challenges, work in a fast-paced environment, and close deals in the IoT and Cloud...Who We Are Looking For:
An ambitious, driven, and energetic individual with a passion for sales and technology. Someone who is ready to take on challenges, work in a fast-paced environment, and close deals in the IoT and Cloud industries.
Responsibilities:
- Identifies, qualifies, and cultivates new sales opportunities through multiple mediums (email, phone, trade shows, inbound website leads, and more).
- Maintains a high level of attention to detail managing all respective sales activities (notes, follow-ups, emails, call logs) within CRM tool.
- Responds to inquiries via email, LinkedIn, other social networks.
- Responsible for achieving aggressive weekly targets such as number of qualified opportunities per campaign, number of daily activities/tasks, call quality, appointment setting, and sales skills.
- Qualifying potential opportunities and scheduling initial product presentations between prospects and our sales team.
- Over time, Sales Manager will also be conducting product demonstrations for prospective customers and will develop into a product expert.
Requirements:
- Experience: 1+ year in sales (preferably in an international market, outside Ukraine)
- Education: Bachelor's degree in industrial, engineering, or IT-related fields
- Skills:
- Basic understanding of IoT, Cloud, SaaS, and PaaS
- Strong negotiation and deal-closing abilities
- Hands-on experience with CRM tools
- Experience in direct client communication and stakeholder management
- Ability to manage technical implementation or transformation programs
- Familiarity with modern cloud architectures
- Willingness to travel for exhibitions and seminars
- - Languages: English (B2βA1 level)
- - Mindset: High motivation, strong work ethic, and a results-driven approach
- - Mobility: Readiness for business trips
What We Offer:
- A fast-growing and innovative work environment
- Competitive salary with an attractive commission model
- Opportunities for international networking and career growth
- Dynamic and supportive team
- Work flexibility: Hybrid / Remote options available
Are you ready to build your career in IoT and Cloud sales
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Β· 251 views Β· 49 applications Β· 2d
CRM Marketing Manager
Full Remote Β· Worldwide Β· Product Β· 3 years of experience Β· English - B1Are you an innovative, customer-focused PRO? At Mojam, weβre looking for a CRM Marketing Manager whoβs ready to shake things up and revolutionize how we connect with our players! If youβre passionate about creating personalized customer journeys and...Are you an innovative, customer-focused PRO? At Mojam, weβre looking for a CRM Marketing Manager whoβs ready to shake things up and revolutionize how we connect with our players! π If youβre passionate about creating personalized customer journeys and driving retention, we want you on our team. Help us elevate our CRM strategies and build stronger relationships with our community.
β‘οΈ What to do :
- Manage and optimize the CRM platform to enhance customer engagement, segmentation and personalization
- Develop and implement a comprehensive CRM strategy, including email, web push, and on-site communications, to increase customer retention and engagement
- Design and execute customer segmentation strategies to ensure relevant and targeted messaging to different customer segments
- Utilize A/B testing to continuously improve CRM activities effectiveness
- Monitor, analyze, and report on the performance of CRM initiatives, making data-driven recommendations for optimization and improvement
- Collaborate with the Marketing, Product, and Analytics teams to align CRM activities with overall company goals and strategies
- Control production of all necessary materials
- Stay up to date with the latest industry trends, best practices, and emerging technologies related to customer retention and CRM
π¦Έ Your superpowers
- 2+ years of experience in CRM/ Retention/Email Marketing
- Proficient in using CRM platforms and marketing automation tools
- Detailed expertise in email, web push, on-site communication retention strategies
- Analytical and data-driven, with the ability to interpret customer data and make informed decisions on CRM initiatives
- Strong copywriting skills, possessing the ability to produce engaging and persuasive content tailored to different customer segments
- Exceptional communication and interpersonal skills, with the ability to collaborate effectively across departments
- Results-oriented mindset with a focus on driving measurable improvements in customer retention metrics and CRM performance
- Continuously seeking opportunities to innovate and improve retention strategies and CRM processes
- Upper-intermediate (B2)
- HTML and CSS proficiency
Being well-acquainted with the gaming industry, having a passion for video games (CS ideally) would be a substantial asset.
πͺTeam Perks
- Totally remote work from wherever you grind. Into coworking? Weβve got your back
- Flex schedule with no time tracking, because our goal is results
- Work gear on us, get the tech you need
- Half-year bonus Twice a year every mojamer receives a sweet bonus as a nod to our shared achievements
- Health buffs: compensation for sports and mental health, paid sick leaves, and 18 days for vacation
- Skill boosts: we cover training, certs, UA and ENG classes, and pro tips from our top mojamers
- Day-offs and gifts on important dates that you choose yourself (birthday, work anniversary, childβs birth, wedding)
- A squad of PRO&BROs to craft epic gaming worlds with!
Ready to elevate CRM to new heights π? Weβre excited to see your CV and hopefully welcome you aboard! Letβs add more jam together π
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Β· 21 views Β· 3 applications Β· 2d
Delphi developer
Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - B2Requirements Strong Delphi 7 expertise (primary requirement) Experience with FreePascal/Lazarus (secondary requirement) Knowledge of WebSocket communication and client-server architecture Experience with SVN, Jenkins (CI/CD), and Jira Familiarity with...Requirements
- Strong Delphi 7 expertise (primary requirement)
- Experience with FreePascal/Lazarus (secondary requirement)
- Knowledge of WebSocket communication and client-server architecture
- Experience with SVN, Jenkins (CI/CD), and Jira
- Familiarity with cross-compiler development (Delphi/FPC)
- Ability to work with legacy systems and maintain code stability
- Understanding of Agile development practices
Responsibilities
- Develop and maintain code in Delphi 7, ensuring compatibility with FreePascal
- Support both legacy GUI and new web application via shared server component
- Participate in Agile ceremonies (planning, stand-ups, reviews, retrospectives)
- Track tasks in Jira and maintain Jenkins build configurations
- Write clean, maintainable code and follow existing patterns
- Perform cross-platform testing and deployment (Windows & Linux)
Optional / Nice-to-Have
- Experience with mORMot framework (WebSocket server, logging, daemon)
- Knowledge of FastMM4 (memory management)
- Background in business calculation/estimation software
- Hands-on experience with CI/CD pipeline optimization
- Familiarity with performance tuning in Delphi/FPC
We Offer
- Competitive salary
- Flexible schedule
- Social package
- Courses, webinars, seminars to increase professional skills
- Snacks & fruit, foosball, fun office environment
- Horizontal hierarchy. No micromanagement pressure
- Open company culture where your ideas and initiatives are valued
- Regular team building & corporate events
- International projects
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Β· 93 views Β· 19 applications Β· 2d
Middle Swift Developer
Full Remote Β· Worldwide Β· 2 years of experience Β· English - B2At Time2Mobile, we craft cutting-edge mobile applications that help businesses scale and connect with their users. We are currently expanding our iOS team and looking for a skilled Middle Swift Developer who is passionate about mobile technologies and...At Time2Mobile, we craft cutting-edge mobile applications that help businesses scale and connect with their users. We are currently expanding our iOS team and looking for a skilled Middle Swift Developer who is passionate about mobile technologies and eager to work in a dynamic remote-first environment.
Position Overview:
As a Middle Swift Developer, you will be responsible for designing and building robust iOS applications. You should have a solid background in Swift and experience working with RESTful APIs, design patterns, and Appleβs ecosystem. Fluent spoken English is essential for daily communication with international clients and the team.Responsibilities:
- Develop, test, and maintain native iOS applications using Swift
- Collaborate closely with UI/UX designers and backend developers
- Participate in architectural decisions and code reviews
- Communicate project progress and updates clearly in English
- Troubleshoot, debug, and optimize code for performance
Requirements:
- 2+ years of professional experience in iOS development with Swift
- Proficient in UIKit, SwiftUI, and Apple Human Interface Guidelines
- Solid understanding of MVVM or other design patterns
- Experience with Git, REST APIs, and third-party libraries
- Strong spoken English (B2+ or higher)
Nice to Have:
- Experience with Combine, CoreData, or Firebase
- Published apps on the App Store
- Familiarity with agile methodologies
What We Offer:
- 100% remote work with flexible hours
- Work on international projects with real impact
- Supportive team culture with regular knowledge sharing
- Professional development opportunities
How to Apply:
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Send your CV, GitHub/App Store links -
Β· 208 views Β· 54 applications Β· 2d
Junior Java Developer
Full Remote Β· Countries of Europe or Ukraine Β· 1 year of experience Β· English - B1We are looking for a motivated individual to join our small team and work on various projects focusing on: e-commerce development and Spring Boot programming. You will be working closely with the Team Lead, who will also serve as your mentor. He will...We are looking for a motivated individual to join our small team and work on various projects focusing on: e-commerce development and Spring Boot programming.
You will be working closely with the Team Lead, who will also serve as your mentor. He will always be available to assist you and answer your questions, but will also require high-quality and timely execution of tasks.
π Key Requirements & Details
- Position: Junior Java Developer (Remote)
- Technologies: Java, Spring Boot, SQL, JPA, MongoDB
- English Level: Intermediate (B1/B2)
- Mandatory Languages: Ukrainian or Russian is required.
- Work Schedule: 10:00 AM β 7:00 PM Kyiv time (EET)
- Location: Remote
- Experience: We are considering candidates with work experience (not necessarily commercial).
- Test Assignment: A mandatory test assignment will be provided after the initial introduction (you will have two days for completion).
- Salary: $500/month, paid twice a month via a convenient method for you (crypto, bank card, or other options).
We are interested in long-term cooperation.
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Β· 75 views Β· 5 applications Β· 2d
QA Trainee
Hybrid Remote Β· Ukraine Β· 0.5 years of experience Β· English - B2Position overview DataArt is a global software engineering firm and a trusted technology partner for market leaders and visionaries. Our world-class team designs and engineers data-driven, cloud-native solutions to deliver immediate and enduring...Position overview
DataArt is a global software engineering firm and a trusted technology partner for market leaders and visionaries. Our world-class team designs and engineers data-driven, cloud-native solutions to deliver immediate and enduring business value.
We promote a culture of radical respect, prioritizing your personal well-being as much as your expertise. We stand firmly against prejudice and inequality, valuing each of our employees equally.
We respect the autonomy of others before all else, offering remote, onsite, and hybrid work options. Our Learning and development centers, R&D labs, and mentorship programs encourage professional growth.
Our long-term approach to collaboration with clients and colleagues alike focuses on building partnerships that extend beyond one-off projects. We provide the ability to switch between projects and technology stacks, creating opportunities for exploration through our learning and networking systems to advance your career.
Gain practical experience, enhance your skills, and master independent work on real IT projects.
Demonstrate your expertise during the trial period, and if you meet the professional standards, youβll earn the Junior QA qualificationβwith the opportunity to join DataArt full-time.Requirements
- Basic knowledge of manual testing (types of tests, methodologies of organizing testing processes, test design techniques)
- Basic knowledge of databases and skills working with at least one of database management systems (one of the following: MSSQL, Oracle, MySQL, PostgreSQL, etc.)
- Good interpersonal skills
- Excellent spoken English
Nice to have
- Practical and/or theoretical knowledge of API and mobile testing
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Β· 70 views Β· 15 applications Β· 2d
Manual QA Engineer
Full Remote Β· Countries of Europe or Ukraine Β· 2 years of experience Β· English - B1We are looking for a skilled Middle Manual QA Engineer. Requirements: 2+ years of related work experience Solid knowledge of testing processes, methodologies, and standards Experience in web projects testing Experience in defining scope of...We are looking for a skilled Middle Manual QA Engineer.
β Requirements:
βοΈ 2+ years of related work experience
βοΈ Solid knowledge of testing processes, methodologies, and standards
βοΈ Experience in web projects testing
βοΈ Experience in defining scope of testing, developing testing approach
βοΈ Attentive to detail, analytical skills, and a scientific approach to problem-solving
βοΈ Basic SQL knowledge
βοΈ Strong verbal/written communication & an excellent attention to detail
βοΈ Knowledge of JIRA and/or similar bug tracking tools
βοΈ Experience in test documentation creation and maintenance experience in defining scope of testing, test plan, writing test cases,
βοΈ Intermediate+ level of English (both verbal and written)
β Will be a plus
βοΈ Experience in I18n,l10n testing
βοΈ Experience in API testing
βοΈ Knowledge of Azure Data Factory
β Duties and opportunities
βοΈ Manual testing of web applications
βοΈ Defects management in the bug-tracking system
βοΈ Test documentation management
βοΈ Collaboration with project team
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Β· 94 views Β· 17 applications Β· 2d
Senior Backend Engineer (Nest.js)
Full Remote Β· Countries of Europe or Ukraine Β· 6 years of experience Β· English - B2Project Description The project is a high-load DeFi infrastructure focused on building scalable, reliable backend services for financial and Web3 products. The team develops and maintains a microservices-based architecture that powers core platform...Project Description
The project is a high-load DeFi infrastructure focused on building scalable, reliable backend services for financial and Web3 products. The team develops and maintains a microservices-based architecture that powers core platform functionality and public APIs used by both internal services and external integrators. The system is designed for high performance, low latency, and strong operational stability in a blockchain-driven environment.
Responsibilities
- Develop and maintain scalable backend microservices using Node.js and Nest.js
- Design and implement high-performance, low-latency APIs
- Ensure system reliability through monitoring of technical and business metrics (uptime, error rates, etc.)
- Perform system profiling and optimize database queries for high throughput
- Write clean, well-documented code in compliance with internal standards and guidelines
- Set up and maintain alerting systems; participate in incident detection and mitigation
- Take part in code reviews, architecture discussions, and agile sprint planning
- Collaborate closely with cross-functional teams
Continuously evaluate and introduce new tools and technologies to improve system performance and team efficiency
Requirements
- Proven experience in fintech, DeFi, or cryptocurrency domains
- Hands-on experience building high-load microservices architectures
- Advanced proficiency in Node.js and TypeScript
- Strong SQL knowledge and hands-on experience with PostgreSQL
- Familiarity with Redis and message brokers (e.g. NATS, EMQX, Kafka)
- Experience with monitoring tools such as Prometheus and Grafana
- Solid understanding of blockchain fundamentals, Web3 concepts, and Solidity
- Basic DevOps knowledge: CI/CD pipelines, Docker, Kubernetes fundamentals
- Experience configuring metrics pipelines and alerting systems
- Experience working in Scrum-based environments with a structured, enterprise-oriented approach
- Strong communication skills, proactive mindset, and problem-solving attitude
Willingness to work in a hybrid format (at least 3 days per week on-site)
Nice to Have
- Deep hands-on experience with or advanced knowledge of Nest.js
- Strong understanding of event-driven architecture and asynchronous communication patterns
- Experience with Web3 tooling such as ethers.js or web3.js for blockchain interactions
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Β· 3 views Β· 2 applications Β· 2d
Senior GPU / Compiler Engineer
Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - B2Our Customer: Our client is a forward-thinking early-stage startup creating next-generation GPU efficiency solutions and developing performance layers for AI and LLM workloads. Your tasks: Design and enhance GPU software infrastructure. Work with CUDA,...Our Customer:
Our client is a forward-thinking early-stage startup creating next-generation GPU efficiency solutions and developing performance layers for AI and LLM workloads.
Your tasks:
- Design and enhance GPU software infrastructure.
- Work with CUDA, OpenCL, ROCm, and LLVM to boost computational performance.
Drive code compilation and transformation workflows from CPU to GPU. - Develop scalable high-performance computing and AI infrastructure layers.
Collaborate with top-tier engineers across GPU, AI, and compiler domains.
Required Experience and Skills:
- 5+ years of hands-on experience working with GPU, compiler, or HPC technologies.
- Strong expertise in performance tuning, GPU memory management, and computer architecture.
- Expertise and passion for performance, latency, and optimization.
- Would be a plus:
Experience with HPC, LLM systems, or AI infrastructure.
Working conditions
- 5-day working week, 8-hour working day;
- Remote work.