Jobs at Djinni

On behalf of our Client from Japan, Mobilunity is looking for a Scala Engineer.

Our client is a fast-growing fintech company based in Tokyo that offers its real-time monthly consolidated credit service all across Japan. Our client started Japan’s first instant post-pay credit service for e-commerce customers in October 2014. The main product is an online payment platform which requires no pre-registration or credit card to use; via this service the customers can purchase products online using only a mobile phone number and email address and settle a single monthly bill for all their purchases, either at a convenience store, by bank transfer or auto debit. Customers can use credit funds during a month and then return the balance to zero without paying credit interests.

This service also supports multi-pay installments and subscriptions. There are currently over 4 million accounts in use. This service got the largest investment to date in the Japanese financial tech industry, including PayPal Ventures investment.

Tech Stack: Scala, Java, Go, Apache Kafka, Apache Spark, Design Patterns, Docker, GitHub, Gradle, Hibernate, Jenkins, Jira, JUnit, Linux, Maven, MySQL, Redis, REST, Spring, Spring Boot, Spring Data, Spring MVC, Spring Web, Activiti, HBase, JBehave, Lombok.

Key  Responsibilities:

You will be responsible for developing and scaling their payments platform while meeting the highest standards in terms of security, maintainability and resilience to failure. You will meet regularly with the product team to align software delivery with business goals. With the help of your team members, you will come up with software design tradeoffs and communicate them clearly to other engineers as well as product team members to implement mutually agreed-upon solutions. You will also have the opportunity to work cross functionally in feature teams to deliver product features and services. In addition to regular deliverables expected of the engineering team, you are expected to follow and stay current with industry best practices such as writing automated tests and taking part in regular code reviews to ensure quality code at its highest possible standards.

Requirements:

• Solid experience with Scala, Functional Programming and the Typelevel ecosystem
• Experience with Akka Cluster, Cassandra, Redis, Elasticsearch, Kafka
• Understanding of software architecture and design with the ability to align the overall service architecture
• Experience with building distributed systems, scalability and high throughput software
• Experience with maintaining and further developing existing code bases
• Comfortable with knowledge sharing, working on a team and building relationships
• Ability to define task outlines and deliverables, demonstrate a sense of urgency when required and manage some ambiguity and exercises good judgment when needed
• Ability to give and receive constructive feedback tactfully upstream and downstream
• Excellent communication skills, ability to interact effectively with multidisciplinary teams
• Level of English – Upper-Intermediate and higher

Nice to have:

• Experience with Event Sourcing and CQRS
• Understanding of JVM internals and performance optimization
• Experience with CircleCI, AWS, Fargate, Terraform, Datadog
• Experience working on a payment platform or other fintech field

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note
• English classes in 1-to-1 & group modes with elements of gamification
• Neverending fun: sports events, tournaments, music band, multiple affinity groups

We are looking for a Vue.js 2 Developer (SSR + EJS, Options API) to join a project — a modern platform for creators that combines content publishing, community building, and monetization within one ecosystem.

Requirements

• Strong experience with Vue.js 2 and the Options API
• Good understanding of SSR (Server-Side Rendering)
• Experience with EJS or similar templating engines such as Blade (Laravel) or Twig (Symfony)
• Understanding of how Vue applications are initialized in SSR environments
• Experience working with separate Vue applications per page (without Vue Router inside one large SPA)
• Understanding of browser-side vs server-side rendering and data hydration approaches
• Experience passing server-side data into frontend applications (e.g. window.__DATA__)
• Experience working without Vuex/global stores
• Understanding of component communication through props and custom EventBus solutions
• Experience with SASS
• Familiarity with Bootstrap/Tailwind styling approaches
• Strong level of English

Nice to Have

• Experience with API integrations
• Experience optimizing SSR applications

• Experience working on content or creator-focused platforms

   

Interview Process

1. HR Call
2. Technical Interview
3. Test Task (optional)

4. Final Call with the Client

    

What we offer

💸 Competitive compensation based on your experience and skills

👭 A friendly and supportive team of like-minded professionals

🤒 Paid sick leave

🌴 21 working days of paid vacation + Polish national holidays

🎉 Corporate events and team activities

🩺 Private medical care (for residents in Poland)

🧩 Opportunities for continuous learning and development

🌿 About the company

We are a fast-growing D2C skincare brand operating in the US, Canada, and the UK. We have been in business for five years, selling through our website, Amazon marketplaces, and TikTok Shop, and scaling fast.
Our products are built around quality, trust, visible results, and a premium customer experience. We are now looking for the person who can build our content and creative growth engine.

🚀 About the role

This is not a traditional “make pretty posts” role. The company is looking for someone who understands how content drives attention, trust, conversions, and revenue.
Your mission will be to build and run a high-volume creative growth engine that helps scale TikTok Shop, improve paid ad performance, grow social channels, and turn content into a measurable revenue driver.
You will own the full creative process — from research and creative angles to scripts, creator briefs, editor briefs, final assets, launch, performance analysis, and iterations.

🔥 Who we are looking for

We are looking for someone proactive, commercially-minded, and highly ownership-driven who thrives in a fast-paced environment.
You will be a strong fit if you:
✔️ Think one step ahead and pay attention to details
✔️ Take ownership of outcomes, not just tasks
✔️ Work proactively without constant direction
✔️ Continuously improve and study winning creatives, customer psychology, AI tools, and performance data
✔️ Solve problems quickly and independently
✔️ Create momentum across creators, editors, media buyers, and agencies
This role is ideal for someone who enjoys building systems, moving fast, testing ideas, and driving measurable growth through creative strategy and content performance.

🕒 Working conditions

✔️ Full-time role
✔️ Standard 5-day working week
✔️ Fully remote
✔️ Preferably aligned with the UK time zone


✅ Requirements

🔹 D2C ecommerce experience is a must
🔹 Experience working with physical consumer products and their online promotion
🔹 Experience writing paid ad scripts
🔹 Strong understanding of Meta creative testing
🔹 Strong understanding of TikTok, UGC, and short-form content
🔹 TikTok Shop experience would be a strong plus
🔹 Experience growing a brand, product, page, or ad account through creative strategy
🔹 Experience managing UGC creators and video editors
🔹 Ability to turn customer pain points, objections, reviews, and product benefits into strong creative angles
🔹 Understanding of content that converts, not only content that looks visually appealing
🔹 High level of autonomy and ownership
🔹 Ability to move fast without sacrificing quality
🔹 Comfortable being measured by performance and results
🔹Fluent or conversational English


📌 Responsibilities

🔸 Creative strategy: Build the weekly and monthly creative strategy across TikTok, Instagram, YouTube Shorts, Meta ads, TikTok ads, Amazon video ads, TikTok Shop content, advertorials, and listicles.
🔸 Paid ad creative: Write and develop high-performing scripts for Meta ads, TikTok ads, Amazon video ads, and AI-assisted UGC videos.
🔸 TikTok Shop growth: Create a system for bulk TikTok Shop content, creator briefs, affiliate-style videos, product education videos, objection-handling videos, and conversion-led short-form content.
🔸 Organic social growth: Build the content plan to grow Instagram, TikTok, and YouTube Shorts with content that creates attention, trust, authority, and buying intent.
🔸 UGC and creator workflow: Brief UGC creators clearly, review raw footage, direct editors, and create a smooth production process from idea to final asset.
🔸 Performance feedback loop: Work closely with the media buyer to understand what creatives are converting, what is failing, and what needs to be tested next.
🔸 AI-assisted creative production: Use AI tools to speed up research, ideation, scripting, competitive analysis, AI UGC concepts, and creative variation testing without producing generic content.


⭐ Nice to have

➕ Skincare, beauty, wellness, or premium consumer brand experience
➕ TikTok Shop experience
➕ Amazon video ads experience
➕ Experience with advertorials/listicles
➕ AI-assisted creative workflow experience
➕ Experience working with US, UK, and Canadian markets
➕ Strong understanding of compliance-sensitive categories


🎁 What you get

🌿 A central role in a fast-growing D2C skincare brand
🚀 Ownership of a major growth function, not just task execution
📈 A clear path to Head of Creative or Head of Growth based on performance
💰 Competitive base compensation
🎯 Performance-based bonus/variable pay tied to creative output, TikTok Shop growth, paid creative performance, and social growth
🌍 Remote work with a global team
🧠 The chance to build a real creative growth engine across paid ads, organic social, TikTok Shop, Amazon, and UGC
⚡ A high-performance environment where speed, quality, ownership, and resourcefulness matter

🔥We are not looking for someone to follow a system — we are looking for someone to build it.

If you’re the kind of person who turns ideas into execution, testing into growth, and content into revenue — we want to see your work and build success together.

We're AI company building products for international markets. The team is small, decisions happen fast, and every person has a real impact on outcomes.

We're looking for an organized and proactive person who wants to grow in tech and is ready to take ownership of operational and project coordination alongside the CEO. This isn't a "run errands" role — it's a genuine launchpad into a Project or Operations Manager career at an international AI product company.

What you'll be doing: 

— Managing the CEO's calendar, schedule, and meetings

— Tracking tasks, deadlines, and project statuses across the team — Business communication with partners and contractors (EN/UK) — Organizing travel, logistics, and internal operations 

— Document and financial workflows — reports, invoices, contracts

What we're looking for: 

— Confident with Google Workspace 

— English B2+, Ukrainian fluent 

— Structured thinking and strong attention to detail 

— Genuine interest in AI tools and automation 

— 1+ year of relevant experience or strong motivation to grow fast

What you'll get: 

— Direct daily communication and mentorship from the CEO 

— Real involvement in an international AI business from week one 

— A clear growth path to Project / Operations Manager 

— High autonomy and trust 

— no micromanagement 

— Hands-on experience no course can give you

🏢 About the company

We are a growing private label brand operating on Amazon in the cosmetics and supplements niches. The company has been on the market for over 7 years and is actively expanding its presence, including social media, creator content, and external traffic channels for the US market.

🚀 About the role

We are looking for an experienced Senior E-commerce SMM Lead with a strong background in promoting physical products in the US market.

In this role, you will build and lead the brand’s social media presence across key platforms such as Instagram, TikTok, and YouTube Shorts. You will be responsible for developing the SMM strategy, shaping the brand’s positioning, and connecting marketing goals with our internal Production Department — a “content factory” that includes a creative manager and a team of around 15 creators.

This role is a great fit for someone who combines creative thinking, strong understanding of US social media trends, e-commerce mindset, and data-driven decision-making.


💼 Working Conditions:

🏡 Format: 100% remote
⏳ Employment: Full-time (part-time format can also be considered)
🕒 Schedule: Flexible, result-oriented (team is usually online from 11:00 to 19:00 Europe time)
💰 Fixed salary + performance-based bonus (discussed individually)


🔍 Requirements

✅ 2–3+ years of experience as an SMM Lead / Senior SMM / Social Media Manager in e-commerce projects.
✅ Hands-on experience with physical products, preferably for the US market.
✅ Experience with Amazon brands, DTC brands, beauty, wellness, supplements, or consumer goods will be a strong advantage.
✅ Strong understanding of US social media platforms, especially TikTok, Instagram Reels, and YouTube Shorts.
✅ Ability to analyze Western trends, viral formats, sounds, challenges, hooks, and content mechanics.
✅ Strong understanding of the American consumer, content style, tone, and social media behavior.
✅ English level B2 or higher — ability to write captions, evaluate English-language UGC, understand slang, and work with US-style content.
✅ Experience working closely with creative, production, or UGC teams.
✅ Ability to create clear briefs, guide creators, review content, and maintain brand consistency.
✅ Strong analytical mindset: ability to track metrics, test content hypotheses, and optimize content based on data.
✅ Creativity combined with structure, ownership, and result-oriented thinking.


⚙️ Responsibilities
📌 SMM strategy and positioning

❇️ Develop and implement the brand’s SMM strategy for key platforms: Instagram, TikTok, and YouTube Shorts.
❇️ Define the brand’s visual direction, communication style, and Tone of Voice for the US market.
❇️ Build a content strategy that supports brand awareness, engagement, trust, and external traffic growth.
❇️ Analyze competitors, niche leaders, and successful US e-commerce brands.
❇️ Monitor current Western trends, viral formats, sounds, challenges, and platform updates.

🎬 Creative direction and UGC content

❇️ Work closely with the internal Production Department, including the creative manager and a team of creators.
❇️ Generate creative ideas and participate in regular brainstorming sessions.
❇️ Develop creative concepts, content angles, hooks, scenarios, and detailed briefs for content makers.
❇️ Review, select, and approve final UGC content before publication.
❇️ Ensure all content matches the brand’s visual standards, Tone of Voice, and marketing goals.
❇️ Adapt content ideas for different platforms and formats: short-form videos, Reels, TikToks, Shorts, stories, and posts.

📈 Traffic, funnel, and analytics

❇️ Drive targeted external traffic from social media to Amazon listings.
❇️ Build content funnels that warm up the audience and move users from awareness to purchase intent.
❇️ Track and analyze key metrics: ER, Reach, CTR, video retention, profile visits, link clicks, and conversions to traffic.
❇️ Optimize the content plan based on data, performance insights, and audience behavior.
❇️ Understand how social media traffic can support Amazon growth; experience with Amazon Attribution will be a strong plus.
❇️ Test different content hypotheses and scale the formats that perform best.

💬 Community management and engagement

❇️ Build and grow a loyal brand community across social media platforms.
❇️ Develop activities to increase engagement: contests, giveaways, challenges, polls, and interactive formats.
❇️ Help identify and grow a core audience of brand supporters and potential ambassadors.
❇️ Monitor audience feedback, comments, and content reactions to improve future communication.

🎁 Benefits
💸 Compensation & rewards

Competitive fixed salary with the opportunity to discuss bonuses and performance-based incentives individually.

🌴 Time off & perks

Paid time off, including vacations, sick days, and public holidays, plus birthday gifts and holiday surprises.

🕓 Flexibility & work format

Fully remote work, flexible schedule, and a results-driven approach without unnecessary micromanagement.

🚀 Ownership & impact

Opportunity to take full ownership of the brand’s social media strategy and directly influence growth in the US market.

🧠 Autonomy & resources

Freedom to suggest ideas, test new formats, work with creators, and use available resources to improve content performance.

📈 Growth & projects

Interesting challenges, fast-growing e-commerce environment, and continuous professional growth opportunities.

🚀 If you have strong experience in e-commerce SMM, understand the US social media market, and know how to turn content into traffic, engagement, and brand growth — we’d love to hear from you.

Apply now and let’s discuss how you can make an impact.

About Us
Yespo is an omnichannel Customer Data Platform for mid-size and enterprise businesses in retail, e-commerce, and SaaS. We help companies communicate with their customers across all channels — increasing sales and building long-term loyalty. We’re actively growing in European and US markets and looking for ambitious, proactive specialists to grow with us.

Role Focus
This is a full-cycle CSM role — you’ll own the client journey from onboarding through long-term success. You’ll work primarily with English-language accounts, guiding clients through integration, activating product potential, and ensuring they stay engaged and grow. You’ll also proactively identify at-risk clients outside active support, analyze patterns, and work with product and analytics to turn insights into action.

Key Responsibilities:
• Own the full client journey: from kickoff and integration to ongoing success and growth
• Conduct discovery sessions to map client business goals to Yespo capabilities
• Create and maintain integration roadmaps; coordinate with internal teams to ensure smooth launches
• Proactively identify blockers and resolve them before they impact the client
• Conduct product demos and training sessions tailored to each client’s use case
• Monitor client performance metrics; identify risks early and act to eliminate them
• Analyze patterns among clients outside active support — identify root causes and propose solutions together with Product and Analytics
• Serve as the bridge between the client, integration team, and other internal departments
• Collect and structure client feedback; pass actionable insights to Product and Tech
Skills & Experience
• 2+ years in customer success or account management — ideally in a B2B SaaS or product company
• Strong communication skills, both written and verbal — you can explain complex things simply
• Analytical mindset: able to find patterns, decompose problems, and build a plan
• Comfortable owning accounts end-to-end with minimal oversight
• English — Upper-Intermediate or higher: this is your primary working language, as you’ll be managing English-language accounts
• Hands-on experience with e-commerce, CRM, or marketing automation concepts

Would Be a Plus:
• Familiarity with e-commerce platforms and their integrations: WooCommerce, Shopify, OpenCart, Horoshop, etc.
• Understanding of omnichannel marketing: email, SMS, push, in-app
• Experience working with Notion, Elastic, or Looker Studio
• Hands-on experience with CDP or marketing automation platforms

We Offer:

• Flexible 8-hour work schedule, Mon-Fri.
• Remote-first position with an option to work from our office in the center of Dnipro (with guaranteed electricity and uninterrupted internet).
• 18 working days of vacation and official holidays off.
• Partial compensation for English language courses and other educational programs.

• An awesome team of professional and fun individuals.

   

If you’re looking for a dynamic and ambitious product company driven by constant innovation and exciting projects (eSputnik, Reteno, Yespo) — join our team!

The B2B e-commerce startup is looking for an experienced and active individual who is confident in their ability to lead a small team of sales and onboarding managers.

Qualifications:

✔️ Experienced in B2B sales of digital products and/or services.

✔️ Analytical skills, understanding of KPIs and performance metrics.

✔️ Good communication, negotiation, and interpersonal skills.

✔️ Experienced in building sales processes and team workflows from scratch.

✔️ Strong leadership skills, with the ability to motivate and drive a sales team towards achieving targets.

✔️ Familiarity with CRM software (preferably Zoho CRM), sales management tools, and lead generation software.

✔️ Strong verbal and written English is required (min. upper-intermediate). 

What you will do:

Sales Funnel Development and Optimization:

Collaborate with the marketing team to develop and improve the sales funnel to increase lead conversion rates.
 

Sales Team Management:

Lead and mentor a small team of sales managers. Set and monitor clear team goals and KPIs that align with the company's objectives. Provide regular performance feedback. Hire new managers when required. 

CRM Management:

Lead the CRM system operations, track activity and performance, manage and adjust sales team workflows, ensuring the system supports the team in hitting business objectives.

Marketing Team Cooperation:

Work closely with marketing to align sales strategies and brand messaging.

Business Development:

Identify and pursue new market opportunities. Build relationships with potential clients and partners.

We offer:

1. Fully remote position 

2. Direct impact on processes and product with opportunity to build the sales function from the ground up.

3. Competitive salary in USD + bonuses.

Job Description

- Deep expertise in the Chrome Extension API (permissions, declarativeNetRequest, messaging, storage). 

- Experience bypassing anti-scraping measures or handling highly obfuscated DOM structures. Familiarity with Shadow DOM and its impact on style isolation and scraping.

- Proven experience migrating or building under Manifest V3 architecture.

- Mastery of React for building extension-specific UIs (Sidepanels, Action Popups).

- Strong knowledge of Content Security Policy (CSP) and cross-origin resource sharing (CORS) in an extension context.

- 6+ years of relevant commercial experience as a frontend engineer.

- Experience with TypeScript to ensure type safety across different extension environments.

- Expert-level understanding of DOM manipulation and scraping of asynchronous, "heavy" web apps. Knowledge of browser performance profiling to ensure the extension doesn't slow down the user's browser. Understanding of how to secure sensitive data within local extension storage.

- Proven experience contributing to mature Chrome extension projects maintained by multiple R&D teams, with complex shared codebases.

- Experience developing or maintaining automation and performance testing tools to monitor extension impact at scale, detect regressions, and ensure minimal disruption to end users.

Job Responsibilities

Our Chrome/Edge extension is a core part of the clinician's daily workflow. It lives alongside Electronic Health Record (EHR) systems, capturing data and providing real-time AI suggestions. We need a high-level specialist to lead the development of this extension, ensuring it remains robust against external site changes and maintains strict medical-grade security. Part of your responsibilities will include, but not limited to:

- Lead the architecture and development of our browser extensions using Manifest V3.

- Build sophisticated content scripts that reliably scrape and interact with dynamic EHR platforms.

- Manage complex background logic using Service Workers for session lifecycle management.

- Ensure the extension’s React-based UI (popups and overlays) is high-performance and non-intrusive.

- Implement secure, cross-context messaging between content scripts, service workers, and the main web app.

- Develop robust "DOM observers" to handle updates on third-party sites without breaking functionality.

- Collaborate effectively with multiple R&D teams on large, mature extension projects, contributing to a shared, scalable codebase.

- Design, implement, and maintain automation frameworks to continuously monitor extension performance, detect regressions, and measure the impact on browsers and external systems.

- Establish best practices for performance, security, and maintainability in large-scale, multi-team extension projects.

Department/Project Description

We are redefining the standard of care in mental health. Our platform empowers clinicians by automating administrative burdens—such as note-taking and compliance auditing—using cutting-edge AI and real-time audio analysis. By bridging the gap between clinical sessions and actionable data, we allow providers to focus on what matters most: the patient.

About Project: Multi-tenant exhibition platform that powers AI-guided, gamified visitor experiences for live venues.

Experience:
• Strong production experience on AWS (Lambda, ECS, Aurora or RDS, and the surrounding services)
• Deep PostgreSQL: schema design, query performance, and hands-on experience with row-level security or another rigorous approach to multi-tenant data isolation
• TypeScript fluency on the server side
• Experience designing event-driven or streaming systems (SQS, Kinesis, WebSocket, or equivalent)
• A track record of operating production services: metrics, tracing, alerting, on-call response

Nice to Have:
• LLM integration in production: prompt engineering, streaming inference, latency and cost optimization
• Real-time audio or TTS pipelines
• B2B multi-tenant authentication (Stytch, Auth0, Cognito, or similar)
• Reading Rust (one Rust service in production)
• Headless CMS integrations
• Beacon, BLE, or other sensor-data ingestion pipelines
• Background in cultural, museum, live-event, or exhibition technology

Tech: AWS end-to-end. Lambda and ECS Fargate for compute, Aurora PostgreSQL with pgvector and row-level security for data, ElastiCache Redis, S3 + CloudFront, SQS for fan-out, API Gateway in front. TypeScript on the services, Rust on the streaming layer. Stytch for authentication. PostHog and Mixpanel for analytics. Terraform per service, GitHub Actions for CI/CD.

English level: Upper intermediate (Must be able to speak fluently!)

Role: QA Manual Tester

Company: Procimo (Portugal)

Format: Remote · Full-time · Contractor

About Procimo

Procimo builds industrial real-time location systems (RTLS), and machine data integrations across Europe.
 

We’re growing fast and need a QA Manual Tester to help us deliver with higher quality and fewer bugs.

This role is perfect for someone who loves testing, documenting flows, and catching issues before they reach production.

What You Will Do

• Manually test web applications, dashboards, and user flows
• Document bugs clearly and reproduce reliably
• Validate new features before release
• Do smoke-testing for production deployments
• Support dev teams during sprint cycles
• Ensure consistent quality across RLTS, Machine Monitoring, and integrations
• Maintain simple test cases and checklists

No automation required — purely manual testing.
 

Requirements

• 2–3 years experience as a QA Manual Tester
• Strong attention to detail
• Ability to break things and document findings clearly
• Experience testing web applications (UI + API)
• Basic understanding of REST APIs is a plus
• Good English for conversation, reading documentation and writing bug reports
• Reliable, structured, proactive communicator

Nice to Have

• Experience in IoT, industrial systems, dashboards, or B2B SaaS
• Experience with tools like Postman, Jira/ClickUp, or similar
• Knowledge of regression testing principles

What We Offer

• Fully remote
• Contractor role
• Long-term stability
• Work across 2–3 product areas (RLTS, Machine Monitoring, custom integrations)
• Clear processes and fast iteration cycles
• Work with senior engineers and tech leads

We are looking for a Senior Data Engineer. This is not a standard ETL role. You will work on a high-load system processing 10,000+ executions per minute, building scalable pipelines where AI and LLM logic are embedded directly into production data flows.

The role combines data engineering, backend thinking, infrastructure ownership, and real production AI integration.

What you will do:

• Design and maintain scalable data pipelines in Python on Google Cloud Platform
• Build and optimize AI-driven scoring flows using LLMs for real-time identity enrichment
• Work with BigQuery, Apache Spark, and Apache Iceberg for heavy data processing
• Maintain high-load orchestration with custom Python nodes and complex workflows
• Own deployment and release processes (CI/CD)
• Optimize PostgreSQL performance under heavy load
• Investigate incidents and resolve root causes permanently

• Use AI engineering tools such as Claude in daily development

   

Requirements:

• 4+ years of experience in Data Engineering / Backend Engineering
• Strong Python skills
• Commercial experience with production LLM integration (OpenAI / Anthropic / Gemini)
• Strong knowledge of GCP (Cloud Functions, IAM, Networking)
• Experience with BigQuery, Spark, Iceberg
• Good understanding of Kubernetes
• Experience with workflow orchestration tools (n8n is a strong plus)
• Strong practical knowledge of PostgreSQL

• English level B2+

   

What is important for us:

• Ownership mindset
• Fast learning ability
• Strong problem-solving approach
• Active AI usage in engineering work
• Focus on practical results over unnecessary complexity

Mobilunity is a Ukrainian-based and operated provider of software engineering teams. Our typical clients are European, American and Japanese startups and small-to-mid sized companies working with our teams as permanent and equal extensions to their own software departments. With our collaboration model, engineers get direct access to the client’s technical management and work hand-in-hand with their peers both on the client’s side and in Ukraine. We as the Vendor ensure all non-tech questions are solved in a supportive manner. Joining Mobilunity you will get the best from both worlds - strong support and a big community locally, and an ambitious international team.

We are extending our in-house Online Marketing Team and looking for a talented Senior SEO Specialist to join our team.

Main responsibilities:

• Conduct SEO optimization of the company's main website;
• Develop and implement long-term and short-term SEO experiments for the website;
• Collaborate with and coordinate content writers to update and improve content on the website;
• Conduct thorough competitor analysis and search for link opportunities, organize those utilization through link building team;
• Collect data and report on traffic, rankings and other SEO aspects;
• Optimize visibility for AI-generated answers and LLM-based search engines.

Main requirements:

• Have at least 4 years of experience on a similar SEO position (preferably in IT service companies);
• Have a proven record of past SEO campaigns, be ready to tell about such cases;
• Have at least Upper-Intermediate level of English;
• Have in-depth understanding of SEO principles and approaches;
• Be hands-on in various types of linkbuilding including outreach, crowd marketing, broken linkbuilding and more;
• Have experience in working with Google Analytics, Search Console, Ahrefs, SEMRush, ScreamingFrog;
• Be a master of Google Excel formulas;
• Be able to think creatively and have huge desire to experiment;
• Have analytical skills to forecast and identify trends and challenges;
• Be proactive, independent, attentive to details and extremely responsible.

Joining the team you will get:

• The friendliest community of like-minded IT-people;
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies;
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note;
• Fair salary and 100% taxes coverage – don’t worry about possible taxes raise – we will get you covered;
• The ability to work remotely or from the office in Kyiv (there is a generator and starlink for uninterrupted work);
• Comfortable working conditions in the office – no open spaces, separate rooms for the comfort of each team and several rest;
• Corporate events, numerous interest groups.

COME ON BOARD, AND LET’S GROW TOGETHER!

Requirements: 


-5+ years of experience in JavaScript game development
- Strong knowledge of HTML5, Canvas API, and DOM manipulation
-Proven track record in creating HTML5 games
-Advanced proficiency in JavaScript (ES6+), including async/await, modules, closures, and classes
-Experience with popular libraries/frameworks such as Phaser, Pixi and Three.js
-Solid understanding of object-oriented programming and expertise in performance optimization algorithms, memory management, and threading
-Experience integrating and optimizing Spine animations in game engines
-Experience with slots
-experience in leading and mentoring front-end development teams.
-strategic, structured and analytical thinking.
-strong collaboration and communication skills.


Responsibilities:

-Manage front-end developers team, and perform code reviews;
-Write clean, efficient, testable, and scalable code;
-Collaborate closely with the team to identify and prioritize areas for enhancement;
-Take part in the full development cycle and ensure smooth development and cooperation between the dev team and product owners
- Hands-on experience with AI tools as part of everyday work is a must


Nice to Have:

+ Experience optimizing HTML5 games for mobile browser performance
+ Understanding of CI/CD


Work conditions:

— Flexible working hours and the freedom to work remotely;
— Paid vacation of 20 workdays/year and 5 workdays/year for sick leaves;
— Unlimited unpaid day-offs to take care of personal matters;
— A range of paid benefits to choose from;
— Personal development plan to support your growth
— Skills training to sharpen your expertise;
— Education office featuring internal and external experts and mentorship programs;
— Structured processes through our corporate confluence;
— Open-minded management style with transparent communication of company strategy and plans;
— Performance-based reviews to recognize and reward your contributions;
— Stress management initiatives, including 1-1 meetings and a feedback culture;
— Engaging in corporate team-building events, marathons, and online challenges;
— Family-friendly policies, including special congratulatory gifts for personal milestones like the birth of a child or a wedding.

If you are an ambitious and enthusiastic professional, always eager to learn and achieve the best results, Twin Win Games is the place for you! We offer ample opportunities for personal development and professional growth. Join us as we continue to create innovative and exciting gaming experiences.
 

Ми будуємо власний CDN Edge сервер (ccdn-edged) — високопродуктивний демон на Go, що обробляє живий трафік через HTTP/1.1, HTTP/2 та HTTP/3 (QUIC). Це не черговий REST API. Це системне програмування: реверс-проксі, мережевий стек, оптимізація затримок, WAF, in-memory кешування і Edge Functions.

Шукаємо інженера, який розуміє як насправді працює HTTP, знає різницю між goroutine scheduler і OS thread, і якому цікаво копатись у кишках мережевих систем.

Технологічний стек

Мережевий шар:

    •    HTTP/1.1 & HTTP/2 — stdlib
    •    HTTP/3 / QUIC — quic-go
    •    Reverse Proxy — httputil + fasthttp
    •    TLS Fingerprinting

Безпека:

    •    Coraza WAF — інспекція трафіку
    •    TLS Client Identification
    •    Rate Limiting / Bot Detection

Стан та кеш:

    •    Redis — конфігурація зон, хостів, сертифікатів
    •    In-memory кеш об’єктів

Observability:

    •    VictoriaMetrics / Prometheus
    •    zerolog — structured logging
    •    Access logs via Unix-сокети
    •    Goja — JS Edge Functions (ES5.1+)

Середовище: Go 1.26, GOEXPERIMENT=jsonv2,greenteagc,synchashtriemap

Що обов’язково знати:

    •    Go 3+ роки в продакшені — goroutines, channels, sync primitives, memory model
    •    Глибоке розуміння HTTP/1.1, HTTP/2 (framing, multiplexing, flow control)
    •    Досвід написання реверс-проксі або мережевих серверів / клієнтів
    •    Розуміння TLS — handshake, certificates, ALPN, SNI
    •    Профілювання Go: pprof, trace, heap / goroutine dumps
    •    Робота з low-latency системами — буфери, zero-copy, escape analysis
    •    Redis: структури даних, pub/sub, pipeline

Буде плюсом:

    •    Знайомство з QUIC / HTTP/3 (RFC 9000, 9114)
    •    Досвід із fasthttp або іншими high-perf HTTP бібліотеками
    •    Розуміння WAF / ModSecurity rule engine
    •    Embedded JS runtime (Goja / V8 / QuickJS)
    •    Знайомство з VictoriaMetrics або Prometheus internals
    •    Досвід у CDN, DDoS-захист або edge computing

Важливо

Ця роль не підходить тим, хто спеціалізується виключно на REST API або бізнес-логіці. Тут потрібно розуміти, що відбувається на рівні TCP-з’єднання, як передаються фрейми HTTP/2 і чому zero-copy важливий для пропускної здатності. Якщо тебе цікавить «як все влаштовано зсередині» — ти потрібен нам.

Що ти будеш робити

    Розробляти та підтримувати ядро CDN Edge демона (ccdn-edged)
    •    Оптимізувати проксування трафіку — затримки, throughput, з’єднання
    •    Інтегрувати та налаштовувати WAF (Coraza) під реальний трафік
    •    Розвивати Edge Functions runtime на базі Goja
    •    Проектувати схеми кешування (L1 in-memory + L2 Redis)
    •    Писати benchmark-тести та профілювати критичні шляхи
    •    Брати участь у code review та архітектурних рішеннях

Умови роботи

    •    Повна зайнятість, Remote або Relocate
    •    Конкурентна зарплата — обговорюється на інтерв’ю
    •    Технічне завдання замість leetcode-тестів
    •    Невелика команда, прямий вплив на архітектуру
    •    Сучасний стек без legacy-обмежень
    •    Реальний high-load трафік з першого дня

Ajax Systems, an international tech company and the largest manufacturer of security systems in Europe.

We are looking for a new team member to join our System devisions as a Middle/Senior Android Developer.

The System Division is responsible for building and developing the Ajax software ecosystem. The team develops and maintains OS Malevich and the Video Management System, builds scalable cloud infrastructure, and creates client applications for multiple platforms, ensuring that all system components work together as a unified ecosystem.

The division works with Java, Kotlin, Swift, C, C++, and Python. It includes embedded, cloud, mobile, and desktop engineers who ensure the stable operation of Ajax as a single digital platform.

Required skills:

• 3+ years of experience in Android development;
• a strong familiarity with Java and Kotlin;
• good understanding of the Android ecosystem;
• familiarity with Android SDK: basic concepts like layouts and views, activities and fragments and their lifecycle, storing data;
• practical experience with Kotlin Coroutines;
• proficiency in Jetpack Compose for modern UI development;
• experience with ORM frameworks and Android Jetpack Components;
• strong understanding of code versioning tools (Git) and experience with Gradle;
• strong understanding of the full mobile development life cycle, OOP principles, design patterns;

• passion for software engineering, learning and continuous improvement.

   

Would be a plus:

• gradle knowledge, custom plugin development, build optimization, CI/CD pipelines, and release management;
• writing unit tests;
• practical experience with video streams;
• experience with MVVM/MVI patterns;
• experience with github actions;

• experience with third-party libraries, APIs (Firebase) and custom frameworks.

   

Tasks and responsibilities:

• follow high standards of software quality established in the team;
• design, build, and maintain high performance, reusable, and reliable code;
• suggest technical and functional improvements to add value to the product;

• collaborate with cross-functional teams to define, design, and ship new application features.

   

We offer:

• the opportunity to suggest and implement your own ideas that directly influence the product and its mass production;
• aplace in a fast-growing company with a motivated and professional team;competitive salary;
• medical insurance;
• corporate English classes;
• the opportunity to participate in Ajax’s internal beta-testing program for security systems;
• discounts from partner companies;

• discounts on Ajax products.

   

Ajax Systems is a Ukrainian success story that has grown into a global product. Ajax devices are trusted by more than 4.5 million end users and 330,000 PRO users in over 180 countries. The company provides comprehensive solutions to protect residential and commercial properties of all sizes. Today, Ajax portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, and comfort and automation.