Jobs at Djinni

Waterfall is looking for a passionate, qualified Amazon specialist (PPC).

Requirements:

• One or more year of Amazon working experience;
• Strong understanding of the Internet proficience;
• Understanding of contextual advertising, SEO, and other Internet marketing tools;
• Ability to think systematically and work with data;
• Working experience in statistics (Google Analytics, etc) is mandatory;
• Working experience in contextual advertising: Google Ads, automation tools (services);
• Facebook ads or other advertising platforms working experience to sell products;
• Experience of increasing online-sales of goods and working in the eCommerce sphere;
• Understanding the principles of Amazon, Walmart, Ebay marketplaces, experience in selling goods on these platforms or online stores will be an advantage;

• English (Upper-Intermediate).

   

Responsibilities:

• Setting up and analysing the effectiveness of the advertising campaigns;
• Maintaining analytics/reporting on advertising campaigns;
• Controlling key indicators of advertising campaigns, increasing campaign effectiveness based on analytical systems;
• Ongoing efforts to optimize cost per click, ROAS, and increase sales; Increase sales of the brand merchandise in marketplaces like Amazon, Walmart, Ebay;
• Product design listings;

• Increasing the position of products in marketplace search and Best Sellers Ranks.

   

We offer:

• Full-time 9:00 a.m. to 6:00 p.m.(10:00 a.m. to 7:00 p.m.);
• Paid vacation;
• Paid sick leave;
• Salary by interview results;
• Work with an orientation to foreign markets.

Technical Skills:

• 1+ year of experience in manual testing of web and/or mobile applications
• Understanding of basic test design principles: types of testing, how to write test cases and checklists
• Experience working with bug tracking systems (e.g., Jira, Height, etc.)
• Ability to write clear and structured bug reports
• Experience working with documentation (test cases, checklists)
• Basic knowledge of HTTP, REST, and client-server architecture
• Familiarity with browser developer tools (console, network tab)

• Experience testing APIs using Postman, Swagger, or similar tools

   

Responsibilities:

1. Perform functional and regression testing of web and/or mobile applications based on requirements
2. Write and maintain test documentation, including test cases and checklists
3. Create clear and structured bug reports with steps to reproduce
4. Work closely with the QA lead and developers to verify fixes and ensure product quality
5. Continuously improve knowledge of testing tools, processes, and the product itself

Technical Skills:

• 3+ years of experience in QA
• Strong hands-on experience testing both web and mobile applications (Android / iOS)
• Solid understanding of cross-browser and responsive testing
• Ability to create and maintain test documentation: test cases, checklists, and test plans
• Experience reporting bugs with clear steps to reproduce, screenshots/videos, and logs
• Proficiency with debugging tools: Chrome DevTools, Safari Web Inspector, ADB, Xcode
• Experience testing REST APIs using tools like Postman, Swagger, or similar
• Knowledge of client-server architecture, HTTP protocol, and data formats such as JSON/XML
   

Nice to have:

• Experience testing responsive/adaptive layouts
• Basic understanding of HTML, CSS, and JavaScript (for better frontend comprehension)
• Familiarity with CI/CD pipelines and build delivery platforms (TestFlight, Firebase, GitHub actions, etc.)
• Experience analyzing logs and crash reports (e.g., with Charles, Fiddler, or Firebase Crashlytics)
   

Soft Skills:

• High attention to detail and strong analytical thinking
• Ability to work independently and take ownership of quality
• Strong communication skills and ability to collaborate with developers, designers, and product managers
• Willingness to learn and adopt new QA tools, techniques, and approaches
• Proactive, responsible, and team-oriented mindset

Why this role matters

Our products win on usability and cost—but our long-term advantage is how we treat customers. We’re looking for a CX Manager who genuinely lives for client happiness, sweats the details of every interaction, and can grow today’s solo support desk into tomorrow’s full CX organization.

What you’ll do

• Deliver fanatically helpful 1st-line support across chat, email and phone, hitting aggressive SLA & CSAT targets.
• Act as a high-touch account manager for key merchants, proactively checking in, spotting expansion opportunities, and championing their voice internally.
• Build scalable processes: knowledge base, macros, KPI dashboards, hand-off playbooks, QA loops.
• Turn support data into insights that influence product roadmaps and risk mitigation.
• Recruit, mentor and performance-manage the first wave of CX specialists as we grow.

What makes you a fit

• 3+ years in customer support, success or account management, ideally in fintech, SaaS or payments.
• Proven track record of raising CSAT/NPS and managing tough escalations end-to-end.
• Empathy so strong customers feel you’re “one of the team,” plus the analytical chops to back decisions with data.
• Fluent English (extra languages a plus); mastery of modern CX/CRM tooling (Zendesk, Intercom, HubSpot, etc.).
• Self-starter comfortable in ambiguity—able to design process, not just follow it.

What you’ll get

• Key seat on an early, well-funded team with real ownership and headroom to build a department.
• Competitive comp, equity upside, and budget for the tools & training you need.
• Remote-friendly culture with quarterly off-sites in Europe.

We are looking for an Junior office IT specialist to maintain, upgrade and manage our software, hardware, and networks. You will be responsible for ensuring that our systems are running efficiently and effectively to meet the needs of our organization.

Key Responsibilities:

• Install, configure, and maintain computer hardware, software, and networking equipment.
• Monitor system performance and troubleshoot issues as they arise
• Tracking the condition and quantity of equipment
• Maintain and upgrade existing software and hardware systems to ensure compatibility and efficiency
• Respond to user inquiries and support requests, resolving issues in a timely and effective manner
• Provide training and support to end-users on software and hardware usage
• Preparation and participation in user training sessions
• Off boarding/onboarding user accounts

Qualifications:

• Bachelor's degree in Computer Science, Information Technology, or related field
• Minimum of 1 year of experience in system administration or related field
• Strong knowledge of MacOS, Windows  operating systems
• Base knowledge of network protocols, routing, and switching
• Skills of troubleshooting and problem-solving
• Strong communication and interpersonal skills
• English written/spokenWill be a plus:
• Business Communication
• Business Correspondence
• Experience in working and communicating with suppliers and vendors, telecommunications service providers.

Benefits:

• Competitive compensation package
• International work environment
• Flexible working schedule and the possibility to work remotely
• Annual performance bonus
• English classes
• Maternity/Paternity leave

About the Role

We’re hiring an iOS Developer who is technically sharp, creatively curious, and focused on long-term
growth in the tech space. This is not your standard development role — we’re looking for someone
who enjoys building high-quality products, understands the broader tech landscape, and thrives in an
environment where forward-thinking and continuous learning are the norm.
 

What You’ll Do
- Develop and maintain high-quality iOS applications using Swift, UIKit, and SwiftUI.
- Build apps that integrate Google Maps SDKs, embedded web content (WebViews), and
other critical third-party services.
- Manage application state effectively using modern state management strategies.
- Collaborate with designers, product owners, and backend engineers to bring thoughtful
features to life.
- Participate in technical discussions, code reviews, and architectural decisions.
- Stay up to date with Apple’s latest frameworks, tools, and design patterns.
- Contribute ideas beyond the mobile space — we value engineers who think across the stack,
including web technologies like Angular.

What We’re Looking For
- 2–5+ years of experience in iOS development using Swift.
- Strong understanding of iOS frameworks, app lifecycle, concurrency, and architectural
patterns (MVVM, Clean Architecture, etc.).
- Proven experience working with REST APIs, local storage, and performance optimisation.
- Hands-on experience with state management, Google Maps SDKs, and in-app web
content (WKWebView or SFSafariViewController).
- Comfortable working with authentication flows, secure storage mechanisms (e.g.,
Keychain), and handling network logic with error tolerance.
- Understands how to design apps that work well offline and online, with proper sync and
fallback logic.
- Ability to assess security and privacy risks and handle sensitive user data responsibly.
- Familiar with integrating mobile apps with backend services, managing tokens, and building
scalable network layers.
- Bonus: Exposure to backend tech (Node.js), frontend frameworks (React, Angular), or
interest in machine learning (Core ML, LLMs, etc.).
 

The Type of Developer Who Thrives Here
- Thinks like a builder, not just a developer — driven by purpose, not checklists.
- Invests in their craft and stays curious about what’s next in tech.
- Looks for long-term growth — someone who wants to become one of the best in their field.
- Sees the big picture — understands how mobile fits into systems and user journeys.
 

Why Join Us
- Work in a culture that values quality, autonomy, and smart decision-making.
- Collaborate with ambitious and capable engineers, product minds, and creatives.
- Build products that are part of a long-term vision — not disposable features.
- Competitive compensation and a future-focused work environment.
 

Ready to build more than just apps? Apply now and grow with us.

Position Overview: 

We are seeking a seasoned, hands-on Technical Lead to guide our engineering efforts and drive product delivery from concept to release. In this role, you will collaborate directly with Product Management to interpret complex business requirements, translate them into robust technical designs, and either implement solutions yourself or guide junior team members in doing so. You will serve as both a technical expert and a mentor, ensuring that the team consistently produces high-quality code and scalable, maintainable systems.

 Key Responsibilities: 

1. Technical Leadership: 

• Work closely with the Product Manager to thoroughly understand product roadmaps, user stories, and functional specifications.
•  Convert business requirements into clear, actionable technical architectures and implementation plans. 
• Set coding standards, establish best practices, and drive adherence to these guidelines throughout the development process.  

2. Hands-On Full-Stack Development: 

• Implement features across the full technology stack, primarily leveraging C# and the .NET ecosystem. 
• Develop and optimize server-side code, ensuring efficient integration with APIs, microservices, and third-party systems. 
• Write and maintain client-side code using modern JavaScript frameworks, HTML5, and CSS3. 
• Troubleshoot, refactor, and optimize existing code to enhance performance, scalability, and maintainability. 

3. Database Design & Integration: 

• Design, implement, and maintain database schemas and queries for both relational (SQL Server, PostgreSQL) and NoSQL databases.
• Optimize data access patterns, queries, and indexing strategies to improve application performance and reliability. 

4. Technical Mentorship & Team Development: 

• Offer guidance, code reviews, and learning opportunities to junior engineers to elevate their technical skill sets. 
• Foster a culture of continuous improvement, encouraging knowledge sharing, pair programming, and ongoing education. 
• Collaborate with peers and stakeholders to evaluate new technologies and tools that can advance our technical landscape. 

5. Architecture & Cloud Deployment: 

• Influence architectural decisions related to scalability, security, reliability, and cloud deployment strategies (e.g., AWS, Azure, GCP).
• Implement CI/CD pipelines, automated testing, and monitoring solutions to streamline the release cycle and maintain system integrity.

Required Technical Experience: 

• Full-Stack Expertise: 7+ years of professional experience building and maintaining full-stack applications, with a strong emphasis on C#, .NET, and accompanying server-side technologies. 
• Web Technologies: In-depth knowledge of JavaScript (preferably a modern framework such as React, Angular, or Vue), HTML5, CSS3, and RESTful APIs. 
• Database Proficiency: Expert-level skill in relational databases (e.g., SQL Server, PostgreSQL) and experience with NoSQL databases (e.g., MongoDB, Redis). 
• Architecture & Patterns: Proven ability to apply software design patterns, SOLID principles, and microservices architecture. 
• Cloud & DevOps: Familiarity with cloud platforms, infrastructure-as-code, containerization (Docker, Kubernetes), and CI/CD pipelines. 

Required Leadership Experience: 

• Technical Planning: Demonstrated ability to analyze business requirements and produce high-level architectures and detailed technical specifications. 
• Mentorship: At least 3 years providing technical leadership, code reviews, and guidance to junior developers. 
• Project Execution: Experience planning, estimating, and delivering complex software projects on time and within scope. 

Preferred Qualifications: 

• Bachelor’s degree in Computer Science, Software Engineering, or a related field. 
• Experience with Agile or Scrum methodologies. 
• Contributions to open-source projects or active involvement in technical communities. 
• Advanced degree or professional certifications in relevant technologies. 

Soft Skills & Attributes: 

• Communication: Exceptional verbal and written communication skills, able to convey complex technical information to both technical and non-technical audiences. 
• Problem-Solving: Strong analytical thinking and the ability to diagnose and resolve complex technical issues quickly and effectively.
• Adaptability: Eagerness to learn and adopt emerging technologies, frameworks, and paradigms as the industry evolves. 
• Ownership & Accountability: A sense of responsibility for the team’s output and the end-to-end success of product initiatives. 

Why Join Us: 

As a Technical Lead, you will directly shape our engineering culture, influence architectural decisions, and contribute to strategic technology roadmaps. You will have the autonomy to drive technical innovation while nurturing the growth of your team. This is an opportunity to leave a lasting impact, build cutting-edge solutions, and foster an environment of excellence and collaboration. 

Responsibilities:

• Perform comprehensive security audits of our C++ based robotics software stack.
• Identify, analyze, and mitigate security vulnerabilities in embedded systems, network interfaces, cloud infrastructure and application logic.
• Design and implement security improvements such as secure communication protocols, secure boot, access control, and firmware protection.
• Establish security guidelines and best practices for the development team.
• Collaborate with software and hardware teams to integrate security into our CI/CD and development processes.

• Lead or support incident response and root-cause analysis for any discovered security issues.

   

Requirements:

• Experience with C++ development.
• Strong understanding of cybersecurity principles, including threat modeling, secure coding, authentication, and encryption.
• Familiarity with secure communications (TLS, SSH), code signing, and access control mechanisms.
• Hands-on experience with VPN technologies (e.g., OpenVPN) and secure remote access strategies.
• Experience with Linux-based systems and debugging security-related issues.
• Ability to conduct static and dynamic code analysis, fuzz testing, and vulnerability scanning.
• Excellent communication and documentation skills.

Senior Golang Data Engineer — Blockchain & High-Load ServicesAbout Everstake

Everstake is the largest blockchain validator in Ukraine, operating nodes in 70+ networks. We collect, process and serve terabytes of blockchain data to help ecosystems and token holders make better decisions.We are looking for an engineer who lives at the intersection of data and infrastructure: someone who writes industrial-grade Go and loves squeezing every last micro-second out of high-load services.

What you will do:
 Data engineering

• Design, implement and operate ETL/ELT pipelines for multi-chain datasets (TB scale).
• Choose optimal storage engines (SQL / NoSQL / columnar) and schema strategies.
• Automate data collection, validation and monitoring.

High-load Go services

• Write scalable, well-tested Golang micro-services (10k+ RPS, 24/7 uptime).
• Own critical architectural decisions, from API contracts to caching layers.
• Profile, benchmark and optimise for latency and throughput DevOps & observability 
• Containerise everything with Docker and deploy to Linux-based infra.
• Instrument services with Prometheus/Grafana, set SLOs/alerts.
• Contribute to CI/CD pipelines and infra-as-code.

Collaboration

•  Work closely with product, blockchain researchers and fellow engineers.
• Explain complex technical topics in plain English to non-technical teammates.

Must-have qualifications:

• 5+ years professional software development, 3+ years in Go.
• Solid Data-Engineering background: SQL (Postgres/ClickHouse), data modelling, large datasets.
• Hands-on experience with high-load, distributed systems (REST/RPC/gRPC, TCP/HTTP/UDP).
• Linux administration basics, Docker in daily workflow.
• Strong testing culture (unit, integration, load).
• Passion for blockchain technology and curiosity about how chains work under the hood.
• Clear written & spoken English.

Nice-to-have:

• Practical work with smart-contract data, crypto wallets or other blockchain subsystems.
• Familiarity with NoSQL caches/queues (Redis, RabbitMQ) and column stores (ClickHouse).
• Experience leading small engineering teams or mentoring peers.
• Knowledge of Agile/Scrum processes.

Tech stack you’ll touch
Go · Python · SQL/PostgreSQL · ClickHouse · Redis/RabbitMQ · Docker · Linux · Prometheus/Grafana · gRPC · GitLab CI

What we offer:

• Remote-first team across multiple time zones.
• Opportunity to shape the data platform used by thousands of delegators and protocol teams.
• Hardware & conference budget, paid courses/certifications.
• Flexible PTO plus local holidays.
• Competitive compensation in USDT or local currency.

Hello! ✨

 

We’re Wildix, a global leader in Unified Communications & Collaboration as a Service (UCaaS) and we’re on a mission to redefine how businesses connect. Our secure, web-based and AI-powered solutions help companies around the world collaborate smarter, serve customers better and grow stronger — and we want you to help shape what’s next.

About Us…

In 2005, brothers Dimitri and Steve Osler set out to reimagine how businesses communicate, and that vision became Wildix. Today, from our headquarters in Tallinn, Estonia, Wildix is one of the world’s fastest-growing UCaaS companies, with 300+ team members from 15+ nationalities, working across Europe, the UK, the Americas and beyond. We serve businesses in 135+ countries through a partner-first ecosystem, delivering secure, intuitive solutions that keep companies connected, productive and ready for what’s next.

At Wildix, we don’t just build technology, we live it. As a remote-first company, we rely on our own platform every day to collaborate globally and innovate fast. With steady growth and a strong foundation, we offer real opportunities to advance your career as we scale, making an impact in a global team that’s shaping the future of work.

At Wildix, our mission is clear: Empower companies worldwide with seamless communication solutions that drive productivity, efficiency, and growth.

 

About The Role

We’re looking for a Middle Technical Writer to join our team. In this role, you'll collaborate closely with R&D, Support and Marketing to create and refine high-quality documentation while also managing and coordinating GUI localization to ensure clear and consistent user interface translations.

What You Will Do…

• Create clear, concise and user-friendly documentation for new products
• Review, update and improve existing documentation
• Write straightforward release notes, changelogs and technical blog posts
• Test and validate different use cases to ensure the documentation is clear, concise and accurate
• Manage and coordinate GUI localization to ensure consistency across languages
• Work within a structured schedule of 10:00–19:00 UA time

What You Will Bring…

• 3+ years of experience in technical writing in an IT company
• Experience with Jira and Confluence
• Advanced English (C1 level) in both writing and speaking
• Ability to express complex concepts in a clear and concise manner in a written form in English
• Analytical mindset with strong research and communication skills

Bonus Points If You Have…

• Technical background, experience in VoIP/ telecoms
• Basic HTML knowledge
• Experience with WordPress
• Experience with LMP 
• Experience in UX writing

Why You’ll Love It Here

👫 Work with a Supportive, High-Performing Team – We believe in trust, autonomy, and working with bright, passionate individuals who drive real impact.

🌍 A Truly International Workplace – Our diverse and inclusive team ensures you’ll always feel connected and supported, no matter where you are.

🚀 Shape the Future of Global Communication – Be part of a team transforming how businesses operate in an era of remote work and AI-powered collaboration.

💼 Join a Profitable & Stable Company – We’re not a startup experiment, we’re a two decade old success story with sustained profitability, meaning we can back your boldest ideas.

What We Offer

🏖️ Generous Time Off – Take the breaks you need to relax, recharge, and come back inspired.

💻 Top-Tier Tech – Love Mac? So do we! We equip our team with the best tools for success.

📚 Level Up Your Skills – After your probation period, you can enroll in English classes to boost your communication skills.

🚀 Career Growth & Development – We cover certifications and IT conferences to keep you at the top of your game.

🌱 Well-being Support – We offer access to psychology sessions to support your mental and emotional health

Happy with them? We offer even more! Our Benefits are country-specific, you can ask your recruiter for more information

Interview Process

🤝 Step 1: Initial Screening – A chat with our Talent Team to understand your background, experience, and motivations (30 mins)
🛠️ Step 2: Final Interview – A conversation with leadership or cross-functional team members to ensure alignment with our values and mission (45 mins)

We Are Wildix:

Wildix is an equal-opportunity employer. We value diversity and welcome all applicants regardless of race, gender, age, religion, or any other characteristic. Everyone is encouraged to apply and is welcome to join our Blue Ecosystem. 

Ready to join us? Apply Now!

Senior WordPress Engineer (Payments industry)

The Opportunity:

We are seeking a highly skilled and experienced Senior WordPress Engineer to join our growing engineering team. In this critical role, you will be responsible for architecting, developing, and maintaining robust WordPress-based solutions that support our web infrastructure and product marketing efforts, with the potential to lead the development team (based on candidate experience) 

You will play a key part in aligning WordPress technology with the company’s strategic objectives, helping to transform business needs into scalable and high-performing web solutions.

This role requires a strong engineering mindset, deep expertise in WordPress development, and the ability to work collaboratively across teams.

Experience in leading small development teams or mentoring other engineers is a plus. 

What You'll Do (Roles & Responsibilities):

• Strategic Implementation: Lead the integration of WordPress technology into our digital strategy, ensuring web infrastructure supports the company’s growth, marketing goals, and operational efficiency.
  
   
• WordPress Architecture & Development: Build and maintain custom WordPress themes, plugins, and APIs tailored to business needs.
  
   
• Scalability & Performance: Optimize WordPress environments for speed, scalability, and reliability, ensuring exceptional user experiences across devices and geographies.
  
   
• Cross-Functional Collaboration: Work closely with Product, Design, Marketing, and DevOps teams to deliver solutions that reflect broader company objectives.
  
   
• Custom Integrations: Implement and manage integrations with third-party services such as CRMs, analytics tools, and payment gateways.
  
   
• Code Quality & Best Practices: Champion clean, well-documented code, perform code reviews, and drive the adoption of development best practices.
  
   
• Continuous Improvement: Contribute to technical innovation, process automation, and ongoing improvement of development workflows.
  
   
• (Optional) Team Leadership: Support and mentor junior engineers, contribute to team planning, and foster a culture of engineering excellence.

What You'll Need (Qualifications):
 

• Experience: 5+ years of professional experience in WordPress development, with a track record of delivering large-scale, high-performance sites.
  
   
• Technical Expertise: Strong proficiency in PHP, MySQL, JavaScript, HTML5, CSS3, and modern web development tooling (e.g., Git, Docker, WP-CLI, CI/CD).
  
   
• Business Alignment: Experience translating business goals into technical solutions, particularly within a marketing or product-focused context.
  
   
• Performance Optimization: Deep knowledge of caching, performance tuning, CDN usage, and secure WordPress configurations.
  
   
• Communication: Strong written and verbal communication skills with the ability to explain complex technical topics to non-technical audiences.
  
   
• Collaboration: Comfortable working in agile, cross-functional teams with a proactive and accountable approach.
  
   
• Leadership (Optional): A background in leading development teams, mentoring others, or managing project-level delivery is a plus.
  
   
• Drive for Impact: A self-starter passionate about delivering high-quality digital experiences that support business success.
  
   

We are seeking motivated and experienced QA Manual Engineer with the automation testing skills. Our client is a leading U.S.-based financial services organization focused on helping individuals improve their financial health through credit education, restoration solutions, and digital financial tools. The product suite includes a mobile app, client portals, internal CRM systems, and integrations with third-party platforms such as credit bureaus and payment processors. The company operates in a regulated environment with strict compliance standards. Our client is expanding the team by QA Engineer to help ensure product quality across complex, integrated systems.

Required Qualification:

• 3+ years of hands-on experience in QA engineering focused on manual testing.

• Deep understanding of QA methodologies, the Software Development Life Cycle (SDLC), and Agile frameworks.

• Extensive experience designing and executing functional, end-to-end, smoke, regression, and integration test scenarios.

• Skilled in using tools such as Postman for API testing, Jira for defect tracking, and Confluence for documentation.

• Well-versed in CI/CD pipelines using GitHub Actions.

• Strong analytical and communication skills, with keen attention to detail and a commitment to quality.

Nice to have:

 
Experience testing financial platforms, subscription services, or payment integrations. 
Experience with automation tools (e.g., Playwright, Selenium) 

What You’ll Do:

As a QA Engineer, you’ll play a key role in delivering high-quality releases across our product ecosystem. Your responsibilities will include:

• Collaborating closely with the development team and stakeholders to understand requirements and ensure test coverage.

• Designing, writing, and executing functional, end-to-end, smoke, and regression test cases across mobile (iOS/Android), web, and backend services.

• Performing thorough manual testing to validate feature functionality, data flow, and integration between services.

• Testing APIs using Postman to verify backend responses and service behavior.

• Participating in User Acceptance Testing (UAT) by preparing and supporting test cycles with product and business teams to ensure the release meets user expectations.

• Filing detailed bug reports in Jira and documenting testing processes and findings in Confluence.

• Contributing to release readiness by validating builds across development, staging, and production environments.

Project Technologies:

PHP, Python, JavaScript, AWS, WordPress, Node.js, React Native, SQL,

Selenium + Playwright на JavaScript, POM

📍 Remote | 🕒 Timezone: CEST ±2 | 💼 Full-time, Long-term
 

About the Product
Our client is building a next-gen platform for digital trading and mortgage asset management in the U.S. It enables investors to:

• analyze mortgage loans;
• access up-to-date housing data and reporting;
• easily buy and sell loans online.

Key Responsibilities:

• Design, develop, and maintain the Plus Platform using Node.js and TypeScript.
• Build and consume RESTful APIs for efficient and secure client-server communication.
• Integrate with third-party APIs and external services.
• Work with containerized services in Docker and manage data using PostgreSQL (via Sequelize).
• Collaborate closely with product, design, and engineering teams to deliver full features.
• Write clean, maintainable, and well-tested code (e.g., using Playwright).
• Participate in code reviews and contribute to technical decisions and architecture.
• Use CI/CD pipelines (GitHub Actions) and deploy on AWS.
   

Tech Stack:

• Backend: Node.js, TypeScript, PostgreSQL, Sequelize
• Frontend: React
• Infrastructure: Docker, AWS, GitHub Actions
• Testing: Playwright
   

What We’re Looking For:

• 7+ years of experience in web development.
• Strong skills in Node.js and TypeScript.
• Experience with React and PostgreSQL.
• Solid knowledge of Docker, CI/CD, and testing practices.
• Fluent English (C1+ level) — both spoken and written.
   

Nice to Have:

• Experience in fintech, mortgage, or analytics-related products.
• Full-stack experience across both frontend and backend.
• Background in scaling SaaS/product platforms.
   

📩 Interested? Let me know — I’ll be happy to share more about the team, tech challenges, and what it’s like working with us.

Description

Harmonic is a leading provider of innovative broadband solutions that deliver video, voice and data to communications providers around the world. GL team participates in the development, QA and support of several generations of such solutions.

The CableOS project is about developing the new software-based network equipment that provides access to Internet/IPTV/VoIP services with using powerful servers.

It is an innovative solution for Internet Service Providers that will allow to get rid of the existing HW equipment and migrate to the cloud, saving customers the enormous expenses for the support of the huge number of hardware network equipment. Currently, there are no competitors to this project in the world, and Customer offers the opportunity to be at the beginning of the rapid development of the product and the opportunity to take their place in a fast-paced engineering team.

We Offer

• Opportunity to work in a team of domain professionals promoting high working standards.
• Experience in support of world-leading Cable Operators and Multiple-System Operators (MSOs) across the globe.
• Comprehensive training in Digital Video, DOCSIS, and Networking.
• Hands-on experience in developing, maintaining and supporting modern embedded systems (Linux-based).
• Work with cutting-edge networking solutions employing the latest NFV and SDN technologies.
• Work in multicultural development and support teams spread across continents.

• Visiting customers in Europe for troubleshooting complex technical support cases and performing system integration activities.

   

Requirements

• Education: Bachelor’s in Computer Science, Electronic Engineering, Telecommunications or equivalent;
• Understanding of networking systems, hardware and software design and troubleshooting;
• Strong theoretical knowledge in the following areas: IP network switching and routing protocols, TCP/IP stack;
• Ability to understand technical documentation, including Software/Hardware Configuration Guides, schematics, work instructions, test procedures, etc.;
• Language – English at an advanced level / Another European language is a plus;
• Experience in the configuration and administration of Linux-based servers;
• Ability to understand, communicate and clearly document customer issues;
• Preferred understanding/knowledge of DOCSIS,  DVB/ATSC, CMTS and BNG configuration and troubleshooting;

• Knowledge of PON is a must (configuration and troubleshooting).

   

  Travel requirements: 

  This position requires significant travel within NAC and EMEA regions, mainly but not limited to. The candidate needs to be ready to work in NAC time zones (PDT, MDT, EDT) as a focus on NAC Customers/Accounts.

   

Job responsibilities

• Responsible for supporting activities for CableOS client lab integration, testing, qualifications, and field trials;
• Responsible for clear communication with the marketing, engineering, and sales teams about client expectations;
• Responsible for clear communication with the client regarding the status and project plan for CableOS;
• Create and maintain project plan documentation;
• Responsible for testing new software and hardware; report and track defects to engineering;
• Design, execute, and lead client field trials;
• Train clients on the operation and troubleshooting of the CableOS system;
• Train the field service team on the operations and troubleshooting of CableOS system and any new features that are supported;
• Assist with deployments and technical support as needed.

Ajax Systems is a global technology company and the leading developer and manufacturer of Ajax security systems with smart home capabilities in Europe. It encompasses a comprehensive ecosystem featuring 180 devices, mobile and desktop applications, and a robust server infrastructure. Each year, we experience substantial growth in both our workforce and our user base worldwide. Currently, the company employs over 4,100 individuals, while Ajax sensors safeguard 3.5 million users across more than 187 countries.

Responsibilities and Duties:

• Performing all procurement activities including pre-qualification, negotiating supplier agreements, preparation of contracts and tender management.
• Finding and evaluating suppliers, products and services, negotiating contracts and acquiring the most cost-efficient deals without compromising on quality.
• Develops and negotiates long term relationships with strategic suppliers.
• Manages Supplier risk by ensuring continuity business plans are in place for potential unpreventable interruption to the supply chain.
• Experience with global sourcing.
• Take ownership of the purchasing budget, policy, guidelines and any associated documents.
• Main procurement KPI’s achievement.

• Provide mentorship to department under control, set its objectives and monitor ongoing progress and performance.

   

Requirements for a successful candidate:

• Bachelor’s or Master’s degree in Finance or International Economic Relations is preferred.
• At least 2 years of relevant experience.
• Excellent relationship management skills with the ability to engage, negotiate and manage key stakeholders.
• Commercially and financially astute with experience of managing budgets.
• Strong analytical and quantitative skills: Applicants must have the ability to think critically working outside the box.
• Excellent organizational and time management skills.
• Strong and confident negotiator with the ability to negotiate at all levels.
• Excellent communication, interpersonal and influencing skills.
• Excellent analytical and problem solving abilities.
• Results orientated with ability to plan and deliver against project deadlines.

• Proficiency in English (B2 and over) is required.

   

What we could offer:

• Working in dynamically growing multinational and multicultural Group.
• Ability to add value to the business by applying your knowledge and skills.
• Courses and workshops for professional growth.
• Compensation of mobile communication service.
• Ajax security system kit (you will be a part of the beta-testing program and will be able to test new devices and features before official release).
• Full-time working schedule.
• Medical insurance.

Ajax Systems is a Ukrainian success story, a place of incredible strength and energy.