Jobs at Djinni

We are looking for a skilled Senior Java Full Stack Engineer with React to join our team!

Our client is one of the world's largest fashion retailers selling in 215 markets through its online platform or its 6,477 stores in 95 markets. By working closely together as a single company globally focused on the key elements of fashion production – design, manufacture, distribution, and retail. All the production is founded on three pillars – flexibility, digital integration, and sustainability.

Responsibilities:

• Participate actively and constantly in the design and development of APIs
• Ensure the availability and resilience of its services that help the development of the company’s business
• Ensure the quality of development and code cleanliness (Clean Code).
• Implement the scripts for the automation of the test cases
• Automatic and manual exploratory execution during the development to verify that the acceptance criteria are covered
• Maintain and evolve automated test cases with QA
• Work in close contact with the Product Owner and support in the technical definition of product backlog items
• Guarantee continuous deployment, write qualitative, maintainable code with extensive test coverage in a fast-paced professional software engineering environment
• Suggest technical and functional improvements to add value to the product

Requirements:

• 5+ years of software development experience
• 5+ years of extensive Java development experience, Maven
• 2-3 years of Spring framework and building Spring web applications
• Understanding and experience developing and deploying microservices
• Experience developing REST interfaces, OpenApi
• Frontend testing and performance optimization
• CSS3/SCSS/HTML5, modern responsive design techniques
• Extensive experience with ES6, React, Redux, Redux-saga TypeScript, CSS, RESTful APIs
• Excellent design, coding, and debugging skills
• OOP, OOD, DDD. Design Patterns proficient
• Working knowledge of relational databases, NoSQL technologies – Mongo DB
• Working knowledge of Kafka, Kafka streaming
• Experience with different clouds – AWS, Azure
• Working knowledge of OpenShift, Kubernetes
• Familiar with GrayLog, Grafana
• A clear understanding of Agile methodologies mindset, and development practices applicable to them
• Excellent communication, organizational, and facilitation skills, product-oriented mindset, focus on team results, willingness to continuous personal and team improvements, leadership qualities, and resilience
• Upper-Intermediate English level (there will be a lot of communication with the client)

Job Description

• 6+ years of software development experience with the .NET platform (ASP.NET Core, C#)
• Strong experience building and consuming REST APIs (OpenAPI, FluentValidation)
• Knowledge of OAuth 2.0 flows is a plus
• At least 2+ year of proven experience with Azure Cloud services (Service Bus, Azure Functions, CosmosDB)
• Hands-on experience with front-end development in React (TypeScript, state management)
• Hands-on experience with adaptive design
• Solid understanding of client-server application design and asynchronous programming
• Experience with CI/CD pipelines in Azure DevOps or equivalent tools
• Knowledge of containerization (Docker, Kubernetes) is a strong plus
• Familiarity with low-code/no-code integrations (Power Apps, Power Automate) is desirable
• Experience with Azure ML/AI services, document recognition, or data-driven workflows is an advantage
• Proficiency in debugging, refactoring, and clean code design
• Strong analytical skills with ability to ramp up quickly in new domains
• Good written and verbal communication skills in English (Upper-Intermediate+)

Job Responsibilities

• Design and implement cloud-native applications leveraging Azure Functions, Service Bus, and CosmosDB
• Develop front-end applications in React, ensuring responsive UI and seamless integration with back-end services
• Build and maintain microservices and APIs that integrate with multiple systems, including D365 and data platforms
• Collaborate with stakeholders to define and negotiate API contracts and ensure reliable system integrations
• Implement data processing and workflow services with a focus on scalability, performance, and resilience
• Contribute to the design of low-code solutions integrating Azure ML/AI services for automation (e.g., document recognition, intelligent data extraction)
• Participate in planning, estimation, and architecture discussions, providing technical guidance
• Debug and resolve issues of various complexities across the stack
• Work closely with DevOps and QA to ensure CI/CD pipelines, automated testing, and deployment processes are efficient and robust
• Follow coding standards and contribute to continuous improvement initiatives within the development team

Department/Project Description

GlobalLogic is searching for a motivated, results-driven, and innovative software engineer to join our project team at a dynamic startup specializing in pet insurance. Our client is a leading global holding company that is dedicated to developing an advanced pet insurance claims clearing solution designed to expedite and simplify the veterinary invoice reimbursement process for pet owners.

You will be working on a cutting-edge system built from scratch, leveraging Azure cloud services and adopting a low-code paradigm. The project adheres to industry best practices in quality assurance and project management, aiming to deliver exceptional results.

We are looking for an engineer who thrives in collaborative, supportive environments and is passionate about making a meaningful impact on people's lives. If you are enthusiastic about building innovative solutions and contributing to a cause that matters, this role could be an excellent fit for you.

Bitmedia Labs is an international product IT company that has been building ambitious innovative products for millions of users worldwide since 2014 — combining deep tech expertise with a creative mindset.

Our ecosystem spans:

•  Game Development — building the next generation of Web3 gaming, where gameplay comes first, players own their assets, and developers thrive within massive, engaged communities.
• Digital Marketing Ecosystem — building a unified ecosystem that combines a leading high-performance advertising platform with emerging media and affiliate solutions.

Requirements:

• 2+ years of experience with Python programming and software development;
• Hands-on experience working with LLM models and APIs (OpenAI, Claude, Gemini, LLaMA, etc.);
• Practical knowledge of AI/ML libraries and frameworks (LangChain, Hugging Face, PyTorch, TensorFlow);
• Experience with vector databases (Pinecone, Weaviate, Qdrant, etc.) and embeddings;
• Demonstrated expertise in prompt engineering techniques and best practices;
• Basic experience with model fine-tuning and training pipelines;
• Strong SQL skills and experience with relational/NoSQL databases;
• Proven experience building APIs and backend services (RESTful APIs, background workers, task queues, data processing services) and understanding of application architecture and system design principles;
• Strong problem-solving skills, ability to work independently with minimal supervision, and capacity to research and learn new technologies autonomously;
• Experience with debugging, troubleshooting, and optimizing AI/ML solutions.

Nice-to-Have:

• Experience with cloud platforms (AWS, GCP, Azure) for AI/ML deployment and production implementation of AI solutions;
• Knowledge of Docker containerization, DevOps practices, MLOps, model monitoring, and CI/CD pipelines;
• Understanding of semantic search techniques, advanced embedding strategies, and experience processing unstructured data (text, images, audio) at scale;
• Proficiency with data visualization tools and techniques (Plotly, D3.js, Tableau);
• Working knowledge of web technologies fundamentals (HTML5, CSS3, JavaScript);
• Knowledge of authentication, authorization, and security best practices for AI applications.

Hiring process:

• Intro call with a Recruiter — Interview with the Hiring team — Сollection of recommendations — Offer.

Join Bitmedia Labs to evolve, explore, and make a real difference — together.
Our culture is built on openness, trust, and support. We value initiative, ownership, and results. We work as one team — helping each other, celebrating wins, and learning from challenges together.

We offer the freedom and space to grow:

• ​Professional growth and self-realization through ambitious products;
• ​The opportunity to bring your ideas to life, experiment, and directly influence the product’s development;
• Collaboration with talented teammates united by a shared goal.

We also care about well-being and balance:

•  Flexible schedule and the option to work remotely or from our hubs in Kyiv, Warsaw, and Berlin;
•  Competitive compensation, regular performance reviews, paid vacation, sick leave, and public holidays;
• ​Modern Apple equipment and thoughtful corporate gifts for holidays and personal milestones.
• ​Support for your growth: courses, workshops, and conferences.
• Through our charity foundation Bit Spilka, run by volunteers from our team, we support the military, medics, and civilians across Ukraine — already delivering over $500,000 in aid. Here, your work also drives social impact, and you can also join our volunteer initiatives.

If this resonates with you , send your CV and join us.
Let’s foster the world together!

Cowchain blockchain development company is actively looking for Frontend Developer to join our development team.

About us:
Cowchain have successfully completed 150+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

We’ll match if you have

• Independent thinking and proactive position in development
• Strong problem-solving skills with a keen ability to think analytically and approach complex challenges
• Attention to detail
• Strong tech research skills
• Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment
• Knows how to leverage AI tools to enhance coding efficiency and productivity

Required skills

• Experience in Frontend development
• JIRA, git-flow

Will be a huge plus

• Web3 knowledge and user experience

What will you do

• New features development
• Bugfixes and support existing solutions
• Participate in project architecture discussions
• Build solutions from scratch as well as join ongoing development process
• Have fun

What we offer

• Flexible working schedule, remote work
• Competitive salary with bonuses for activities
• Ability to dive into fast-growing blockchain/crypto industry
• Work with modern tech stack (blockchain)
• Paid vacations, sick leaves
• 100% friendly/family team

Our client is a leading computer hardware company delivering world-class, precision-engineered data solutions. Their product portfolio is designed to maximize human potential by providing innovative and reliable data solutions.

​

We are seeking a talented, motivated, and proactive QA engineer to join the team. You will be working on both the software and hardware components of storage systems while collaborating closely with the QA team in the office.
 

Office location: Wroclaw, Poland

Requirements:
 

• Engineering or engineering-related degree (or final-year student)
• Strong theoretical understanding of software testing principles and methodologies
• Basic knowledge of mobile application testing (iOS and Android) is a plus
• Familiarity with test documentation concepts (test cases, checklists, bug reports) is a plus
• Analytical mindset with the ability to identify and describe defects
• Ability to understand and interpret technical specifications
• Proactive attitude, eagerness to learn, and strong attention to detail
• At least Intermediate English (spoken and written)
   

Responsibilities:
 

• Participate in software testing of network storage devices under guidance of senior engineers
• Execute manual test cases and exploratory testing scenarios
• Analyze and report defects clearly and accurately using bug tracking tools
• Assist in creating and maintaining test documentation
• Collaborate with team members to investigate issues and verify fixes
• Prepare basic testing status updates and summaries
• Participate in meetings with the client and internal team to understand requirements and progress
   

As a Plus:
 

• Academic or personal projects related to software testing
• Basic understanding of embedded systems or file systems
• Exposure to hardware-related testing or laboratory environments

Cowchain blockchain development company is actively looking for Backend Developer to join our development team.

About us:
Cowchain have successfully completed 150+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

We’ll match if you have

• Independent thinking and proactive position in development
• Strong problem-solving skills with a keen ability to think analytically and approach complex challenges
• Attention to detail
• Strong tech research skills
• Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment
• Knows how to leverage AI tools to enhance coding efficiency and productivity

Required skills

• Experience in Backend development
• JIRA, git-flow

Will be a huge plus

• Web3 knowledge and user experience

What will you do

• New features development
• Bugfixes and support existing solutions
• Participate in project architecture discussions
• Build solutions from scratch as well as join ongoing development process
• Have fun

What we offer

• Flexible working schedule, remote work
• Competitive salary with bonuses for activities
• Ability to dive into fast-growing blockchain/crypto industry
• Work with modern tech stack (blockchain)
• Paid vacations, sick leaves
• 100% friendly/family team

🚀Join a team where data drives impact

At Uvik Software, we build world-class dedicated development teams and deliver high-quality software solutions to clients worldwide.

We’re passionate about clean code, strong collaboration, and modern technologies. Now, we’re looking for a Data Analyst who thrives on transforming data into strategic insights and has a solid background with Snowflake.
 

🎯About the Role

As a Data Analyst, you will play a key role in unlocking the value of data for our clients. You’ll work with modern cloud data infrastructures, focusing on Snowflake, to support high-impact analytics projects.
 

🔑Responsibilities

• Analyze large-scale datasets using SQL, delivering clear, actionable insights
• Perform advanced querying, profiling, and data transformation directly in Snowflake
• Design and maintain ETL pipelines for efficient data preparation
• Build interactive dashboards and reports using Power BI or Tableau
• Access and manage cloud data via AWS services (e.g., S3, Glue, Redshift)
   

🧩Requirements

• 4+ years of experience as a Data Analyst working with large datasets
• 2+ years of hands-on experience with Snowflake (querying, modeling, optimization)
• Strong SQL skills for complex querying and transformations
• Proficiency with data visualization tools: Power BI and/or Tableau
• Solid understanding of ETL processes, data modeling, and data warehousing
• Experience with AWS data tools (S3, Glue, Redshift)
• Strong English communication skills (verbal and written)
   

🌍 What We Offer:

We provide an environment where each specialist can grow professionally and work on exciting, high-impact projects.

• Working conditions: Contract model: B2B or FOP
• 18 paid vacation days per year/ 12 paid sick leave days.
• Performance review every 6 months
• Paid professional development — courses, certifications.
• English lessons — 50% compensated.
• Comfortable equipment: MacBook + corporate package.
• Flexible schedule and a supportive, friendly team.
   

Join us at Uvik and help turn data into smart decisions.

🚀 Apply now and be part of a tech-driven, globally distributed team!

Our client is a next-generation B2B financial services provider enabling businesses to make and receive global payments with speed, transparency, and lower costs. They’re rapidly expanding across EMEA, APAC, and North America, serving clients from sports and entertainment to logistics and travel.

Must-Have Requirements

1. Experience & Domain Knowledge:
   10+ years software engineering, including 2+ years with blockchain/fintech platforms
   Deep fintech/regtech experience: payment systems, compliance, KYC/AML, treasury operations
   Understanding that UX correctness is as critical as system correctness in financial products
2. Technical Skills:
   Expert Angular (TypeScript) — large-scale apps, state management, complex forms, architecture
   Expert React.js — production codebases, modern hooks, performance optimization
   Strong backend — Node.js/Nest.js (required), event-driven systems, SQL/NoSQL
   Blockchain — EVM chains (Ethereum, Polygon, Arbitrum), plus one alt L1 (Solana/Stellar/Algorand)
   Infrastructure — Docker/Kubernetes, CI/CD, APIs/webhooks
   Security — cryptography, key management (HSM/MPC), wallet infrastructure, secure coding
3. Financial Systems:
   Payment networks (SWIFT, ACH, SEPA, Faster Payments)
   Blockchain infrastructure providers (Infura, Alchemy, Fireblocks)
   Banking APIs, clearing/settlement, reconciliation
4. Leadership:
   Mentor engineers, drive architectural decisions, set technical standards
   Strong communication — explain complex concepts to cross-functional teams
   Startup experience, comfortable with ambiguity and fast pace

Nice-to-Have:

• High-stakes operator tooling (approvals, permissions, incident management)
• Real-time UI patterns (websockets, streaming updates)
• FX markets, liquidity management knowledge
• Stablecoin experience

• What You’ll Build:
  Complex financial UIs — treasury management, liquidity optimization, reconciliation workflows
• Operator tooling — multisig approvals, real-time monitoring dashboards, transaction routing
• Compliance workflows — AML/CFT controls, transaction monitoring, audit trails, regulatory reporting
• Blockchain integrations — payment rails, settlement infrastructure, wallet operations
• Security-first features — circuit breakers, anomaly detection, risk controls

Compensation & Details:
Salary: up to €104,000 per year
Location: Serbia or Poland
Work model: Remote
Employment: Full-time, contractor arrangement or official employment

Hiring Process
1. CV submission → 2. Screening interview → 3. Technical leadership interview → 4. Team interviews → 5. Offer

Important Notes:
Must have right to work officially in Serbia or Poland

Role Overview:

We are looking for a Strong Mid - level Automation QA Engineer to join our team in Poland. The role will primarily focus on API testing (80%) with UI testing (20%). You will help design, enhance, and maintain automation frameworks, ensuring efficient and scalable testing.

Key Responsibilities:

Automation Framework & Strategy

• Contribute to designing and improving automation testing strategies.
• Develop and maintain automation frameworks for API, UI, and LLM validation.

• Ensure scalability, maintainability, and reusability of automation code.

   

Test Development & Execution

• API Testing: Develop automated API tests in Python using the Requests library.
• UI Testing: Create and maintain UI tests with Playwright.
• Integrate automated tests with Postman collections where applicable.

• Execute performance, regression, and functional tests.

   

Continuous Integration & Deployment

• Integrate automation tests into CI/CD pipelines (Jenkins preferred).

• Work with Docker and Kubernetes to manage and scale test environments.

   

Collaboration & Documentation

• Collaborate with developers, QA, and DevOps teams to improve the QA process.
• Write test plans, strategies, and design documents.
• Track issues using Jira and manage test cases (Xray optional).

• Analyze logs, investigate failures, and troubleshoot in staging and production.

   

Required Qualifications & Experience:

✅ Must-Have:

• 5 years of experience in test automation or a related QA role.
• Strong programming skills in Python.
• Solid experience in API automation (Requests library) and UI automation (Playwright).
• Experience with CI/CD tools (Jenkins preferred).
• Experience with Docker & Kubernetes for test environments.
• Strong analytical, problem-solving, and debugging skills.
• Experience with Jira for tracking and reporting.

• Ability to work independently and proactively in a fast-paced environment.

   

✅ Nice to Have:

• Experience with Kafka.
• Familiarity with Xray for test management.
• Knowledge of AWS cloud services.

Description

As a Senior Manual QA, you will join a highly experienced team developing software for high-tech medical devices.
The technical scope includes key functionalities for the medical industry, including 3D visualization for robotic surgery.
Our organization is recognized for technical excellence, and we emphasize challenging technical work and continuous motivation for our team members.

Requirements

At least 3-4 years in Software Testing (manual/automation)

Deep understanding of software development life cycle, QA methodologies, tools, and processes

Hands-on experience with manual testing, functional testing

Experience in creating and maintaining test documentation (bug reports, test cases, checklists)

Experience in working with documentation – Requirements Specifications, Test Plan, Test Reports, etc

Experience with embbeded system testing

Excellent reporting skills

Upper intermediate level of English

Working in Healthcare domain would be a plus

Job responsibilities

Lead a separate project activity assigned by PM.

Participate in test requirements development, test design, and test development

Execute manual test cases and report defects found in the issue tracking system

Work with documentation – Requirements Specification, Tests Descriptions, Test Reports, Traceability.

Track and report test coverage and software quality metrics

Work closely with the development team and customer team

What we offer

Culture of caring. At GlobalLogic, we prioritize a culture of caring. Across every region and department, at every level, we consistently put people first. From day one, you’ll experience an inclusive culture of acceptance and belonging, where you’ll have the chance to build meaningful connections with collaborative teammates, supportive managers, and compassionate leaders. 

Learning and development. We are committed to your continuous learning and development. You’ll learn and grow daily in an environment with many opportunities to try new things, sharpen your skills, and advance your career at GlobalLogic. With our Career Navigator tool as just one example, GlobalLogic offers a rich array of programs, training curricula, and hands-on opportunities to grow personally and professionally.

Interesting & meaningful work. GlobalLogic is known for engineering impact for and with clients around the world. As part of our team, you’ll have the chance to work on projects that matter. Each is a unique opportunity to engage your curiosity and creative problem-solving skills as you help clients reimagine what’s possible and bring new solutions to market. In the process, you’ll have the privilege of working on some of the most cutting-edge and impactful solutions shaping the world today.

Balance and flexibility. We believe in the importance of balance and flexibility. With many functional career areas, roles, and work arrangements, you can explore ways of achieving the perfect balance between your work and life. Your life extends beyond the office, and we always do our best to help you integrate and balance the best of work and life, having fun along the way!

High-trust organization. We are a high-trust organization where integrity is key. By joining GlobalLogic, you’re placing your trust in a safe, reliable, and ethical global company. Integrity and trust are a cornerstone of our value proposition to our employees and clients. You will find truthfulness, candor, and integrity in everything we do.

We are looking for a Mobile QA Automation Engineer to join our team and strengthen our mobile test automation efforts. You will focus on designing, building, and maintaining automated tests for native iOS and Android applications using Appium, WebdriverIO, and JavaScript/TypeScript. Practical experience in coverage of native mobile apps with automated tests is essential.

 Responsibilities

• Design, develop, and maintain mobile test automation using Appium and WebdriverIO.
• Collaborate with developers and QA team to ensure high test coverage and product quality.
• Build and support automation frameworks, standards, and reusable components from scratch.
• Integrate tests into CI/CD pipelines (e.g., GitHub Actions, GitLab CI).
• Analyze test results, report defects clearly, and participate in debugging/release cycles. 
• Contribute to QA best practices, documentation, and continuous improvement.

Requirements

• At least 6 months of experience with Appium for mobile test automation.
• Practical experience writing automated tests in JavaScript/TypeScript with WebdriverIO.
• Demonstrated experience in mobile automation test coverage of native apps (not just scripting).
• Ability to build or extend automation framework from scratch
• English communication at B1 (Intermediate) level or higher.

We Offer

• Collaborative international team.
• Flexible working conditions.
• Legal support.
• Paid sick leaves.
• Paid vacations.
• Medical insurance. 
• Free English classes.

We’re growing our engineering team and looking for a Senior Full-Stack Engineer who can own complex product areas, drive technical decisions, and contribute hands-on to building a high-performance payment platform.
You’ll work closely with a US-based team (Architect + Founder on the client side) and be part of a small, collaborative delivery team where communication and ownership matter as much as engineering quality.

Your impact

• Take end-to-end ownership of product features: from clarification and technical design to production delivery
• Help shape architecture and engineering practices in a platform where performance, reliability, and security are critical
• Become a key engineering partner for the US stakeholders — this role is closer to working inside a US company than a typical “outsourcing” setup

What you’ll do

• Build and ship features across the stack: Node.js/Express + React
• Design, develop, and maintain backend services and integrations using PostgreSQL and MongoDB
• Implement clean, responsive React UI components and ensure smooth FE/BE collaboration
• Own and improve REST APIs: stability, documentation, scalability, and observability
• Contribute to system design and improvements in performance, scalability, reliability, and security
• Lead complex tasks, support teammates technically, and help evolve coding standards and best practices

What we’re looking for

• 8+ years of commercial experience building web products with Node.js + React
• Strong JavaScript/TypeScript and modern web development practices
• Solid experience with REST APIs, backend services, and database integrations (PostgreSQL, MongoDB)
• Hands-on skills in performance optimization, debugging, security best practices, and scalable architecture
• Confident with Git and collaborative workflows (PRs, code reviews, branching strategies)
• Strong ownership mindset: you can move from “unclear requirements” to a shipped solution

Must-have soft skills (very important)

• Strong spoken English and comfort working daily with US stakeholders
• Ability to build relationships, communicate clearly, and proactively align expectations
• You’re not waiting for tasks — you ask questions, suggest solutions, and keep things moving

Team & collaboration

• Delivery team: 4 Developers + Project Manager
• Client side: Architect + Founder
• You’ll have direct communication and real influence on decisions and delivery

Working hours

You need to be available to work until 12:00–1:00 a.m. Kyiv time (alignment with US team)

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.

Project Overview: 
You will be working on a high-load backend system that exposes a REST API acting as a proxy between client applications and multiple internal services. The API dynamically retrieves, filters, processes, and merges data from various sources based on client parameters. To ensure optimal performance and scalability, the system leverages caching mechanisms, message brokers (RabbitMQ or Kafka), and search technologies like Elasticsearch. The architecture is designed to support high throughput and low latency, making it ideal for real-time data delivery in demanding environments. 

About the job: 
We are looking for a motivated Senior .NET Developer to join our dynamic team working on a high-load distributed system. You will contribute to the design, development, and maintenance of scalable backend services and APIs using modern .NET technologies. This role is ideal for someone with solid backend experience who is eager to deepen their expertise in distributed systems and microservices.
 

We are looking for a passionate and dedicated Senior .Net Developer to join our team in Lviv!

What You'll get to do:

• Design, develop, and maintain backend services and REST APIs using .NET Core.
• Participate in building and supporting microservices architecture.
• Integrate services with RabbitMQ and Kafka.
• Work with Redis for caching and Elasticsearch for search and analytics.
• Troubleshoot issues in development and production environments.
• Write clean, maintainable, and testable code.
• Perform code reviews and mentor team members.
• Take part in technical and architectural decisions.

What You need to know:

• 7 years of backend development experience with .NET Core.
• Experience with message brokers such as RabbitMQ or Kafka.
• Knowledge of Redis or Elasticsearch.
• Understanding of high-load and distributed systems.
• Strong problem-solving skills and attention to details.
• Ability to work effectively in a collaborative environment.

Nice to Have Experience:

• CouchDB or other NoSQL databases.
• Familiarity with CI/CD pipelines and DevOps practices.
• Experience with monitoring tools such as NewRelic, Grafana, or ELK stack.
   

Here's what we offer:

• Start with 22 days of annual leave, with 2 additional days added each year, up to 32 days by your fifth year with us.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment, with up to 50 days of work from home per year.
• Benefit from two Free Fridays each year, limited to one per quarter.
• Daily catered lunch or monthly lunch allowance. 
• Private Medical Subscription. 
• Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly, and a budget for external training.
• Gym allowance.
• Corporate English lessons.
• Support for New Parents:
• 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
• 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.

Our office perks include on-site massages and frequent team-building activities in various locations.

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference! 
 

Хочете зробити кар’єру у найбільшій логістичній компанії світу?

Шукаємо Operations manager у морський відділ

Найсучасніші технології ШІ в логістиці до ваших послуг, а також офіс в Києві/Одесі, ТОП-умови, бонуси, страхування. Обговоримо деталі?
 

Main Responsibilities
 

– Organization of export and import container transportations
– Managing import and export bookings with carriers
– Interaction with shipping lines, agents, contractors
– Problems solving with carriers, customers, other subcontractors
– Handling of shipping documentation
– Work in the international operating program
– Timely submission of reports to the head of the Department
– Communication with customers on daily basis
 

Mandatory Requirements
 

– Understanding of the sea transport logistics;
– Fundamentals of foreign trade activities, bills of lading, types, international transports regulations;
– Knowledge of Incoterms 2020;

– Minimum 1 year of experience in operations of sea transportation services;
– Active life position, work for the result in the team, independence and responsibility, initiative;
–  English knowledge at Upper intermediate level.
 

We offer
 

Work for a Global Logistics leader and the fastest growing logistics provider in Ukraine!

–  Interesting tasks;
– Competitive salary level;
– Social guarantees, according to the Labor Code;
– Official employment
– 24 calendar days of paid leave a year.

Cowchain blockchain development company is actively looking for Backend Developer to join our development team.

About us:
Cowchain have successfully completed 150+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

Key Responsibilities

• Design and develop backend services using TypeScript and NestJS
• Build and maintain event-driven architectures using Kafka and Redis
• Implement and evolve transactional patterns:
  Saga, Idempotency, Ledger, Outbox / Inbox
• Develop blockchain-related logic:
  • Confirmation policies per chain
  • Nonce / sequence management
  • Fee management
  • Transaction de-duplication
  • Backfill and reconciliation processes
• Integrate and maintain multiple blockchain networks:
  Bitcoin, Ethereum, Solana, Tron, TON
• Work with RPC providers (QuickNode, Alchemy, PublicNode, TonOrbs, Blockstream)
• Ensure secure key management using HashiCorp Vault
• Build reliable financial and accounting flows with strong auditability
• Monitor and improve system reliability using Sentry and structured logging
• Participate in architectural decisions and technical planning

Requirements

• 4+ years of experience in backend development
• Strong proficiency in TypeScript and Node.js
• Hands-on experience with NestJS
• Solid understanding of distributed systems
• Experience with Kafka, Redis, and PostgreSQL
• Real-world experience with blockchain integrations
• Understanding of:
  • Transaction lifecycle on different blockchains
  • Confirmations, reorgs, nonces, fees
  • Financial consistency and reconciliation
• Experience with event-driven and fault-tolerant architectures
• Familiarity with security best practices (keys, secrets, access control)
• Ability to work independently and make architectural decisions

Nice to Have

• Experience in FinTech / Crypto / Payments
• Experience designing ledger-based systems
• Familiarity with AML/KYC integrations
• Experience with high-load or mission-critical systems
• Prior work with multi-chain platforms

What We Offer

• Work on a real production crypto-fintech system
• Flexible working schedule, remote work
• Modern tech stack and non-trivial engineering challenges
• Ability to dive into fast-growing blockchain/crypto industry
• Paid vacations, sick leaves
• Strong engineering culture
• 100% friendly/family team