Jobs at Djinni

We are expanding the number of CRM campaigns, launching new projects, and scaling content production for the Casino and Sportsbook verticals. That is why we are looking for a creative and detail-oriented Middle Copywriter to help us create effective communications. 

Your main goal will be to create content that drives Retention, Conversion, Deposits, Reactivation, and LTV of our players, as well as improves Open Rates, Click-Through Rates (CTR), and overall campaign conversions.

📌 Main Responsibilities:

• Writing texts for Email, Push, SMS, and In-App messages.
• Creating texts for bonus pages and promos.
• Adapting content for different GEOs.
• Preparing content for Welcome, Active, Upsell, VIP, Reactivation, and Churn segments.
• Participating in A/B testing of communications.
• Working with the CRM team and designers.

🛠 Required Experience with Tools and Technologies:

• Customer.io, Optimove, Salesforce Marketing Cloud, Braze, or similar CRM platforms.
• Jira, Confluence, Google Docs, Figma.

🎯 Our Ideal Candidate:

• Has 2+ years of copywriting experience.
• Knows how to work with promo offers and bonus mechanics.
• Has an Intermediate (B1+) or higher level of English for writing, adapting content, and working with documentation.
• Is highly literate, detail-oriented, responsible, and capable of meeting deadlines.

➕ Will be a Big Plus:

• Experience in iGaming, Online Casino, Sportsbook, Betting, Gambling, Affiliate Marketing, or Fintech niches.
• Understanding of Casino / Sportsbook bonus mechanics.
• Experience writing Landing Page copy and basic knowledge of UX Writing.
• Certifications in Email Marketing, CRM Marketing, or Content Marketing.

💼 What We Offer:

• Flexibility: Remote work format with a flexible schedule, 5/2 schedule.
• Compensation: Competitive salary based on your experience + performance bonuses.
• Benefits: Paid vacation and sick leave, opportunities for professional development and continuous learning.
• Payments in USDT (white crypto);
• Growth: Opportunity for growth within the project.

About the Role:
We are looking for a highly attentive and hands-on CRM / Email Marketing Specialist to help us execute our retention communication plan. If you enjoy the technical setup of campaigns, are incredibly detail-oriented, and have solid practical experience with Customer.io — we want you on our team!

Responsibilities:
Campaign Assembly & Launch: Build, set up, and launch regular promotional campaigns and automated flows (trigger-based / lifecycle emails) according to the provided content plan.
Customer.io Management: Handle the technical setup of campaigns, flow logic, dynamic variables, and triggers directly within the platform.
Audience Segmentation: Build and apply audience segments based on specific behavioral criteria to ensure accurate targeting.
Quality Assurance (QA): Thoroughly test all emails and push notifications before launch to ensure perfect formatting, correct links, and accurate variable mapping.
Basic Reporting: Monitor baseline campaign performance (Open Rate, CTR, Deliverability basics) and report any anomalies.

Requirements:
Experience: 1+ years in a similar execution-focused role (Email Marketing Specialist, CRM Specialist, or CRM Assistant).
Tools: Practical, hands-on experience with Customer.io is a strict requirement (must-have).
Expertise: Clear understanding of how basic triggers, events, audience segmentation, and email variables work.
Soft Skills: Incredibly attentive to detail, responsible, and comfortable working with precise guidelines and daily operational tasks.
Language: English level — Intermediate+ (required for working with content and platform interfaces).

⭐️ Nice to have:
Basic knowledge of HTML/CSS for minor email template adjustments.
Previous experience in the iGaming / Casino / Betting / Sweepstakes industries.

We Offer:

• Flexibility: Remote work format with a flexible schedule, 5/2 schedule.
• Compensation: Competitive salary based on your experience + performance bonuses.
• Benefits: Paid vacation and sick leave, opportunities for professional development and continuous learning.
• Payments in USDT (white crypto);
• Growth: Opportunity for growth within the project.

Techstack is a technology product engineering company that sets an example for high development standards in the IT industry. We empower each team member to influence the development of the product, company, and processes.

About the role:

We are looking for an experienced Senior Manual QA Engineer for a long-term, part-time B2B engagement(4 years).
This opportunity is ideal for QA professionals who are looking for an additional project alongside their current employment or freelance engagements.

Language requirements:

German: B2 or higher, with documented proof of proficiency.

English: B2 or higher, with documented proof of proficiency.

The project involves testing a multilingual web platform powered by a CMS, as well as a mobile application available on iOS and Android. The web platform supports more than 12 languages, bringing additional attention to functional consistency, content accuracy, and user experience across different language versions.

You will collaborate with an international, distributed team, contribute to structured testing activities, and help ensure a reliable experience for users across web and mobile platforms.

The role is primarily remote and includes occasional on-site testing sessions in Vienna, up to three days per year. Business travel expenses will be covered.

Requirements

• At least 3 years of experience working at Senior QA level.
• Experience participating in at least 5 software projects.
• ISTQB Certified Tester Foundation Level (CTFL) or a higher-level ISTQB certification.
• Hands-on testing experience in at least 2 of the following areas:
• Backend and API testing.
• Enterprise CMS testing.
• Mobile application testing for iOS and/or Android.
• Experience working in Agile environments and distributed teams.
• German proficiency at B2 level or above.
• English proficiency at B2 level or above.
• Documentary proof of both language levels, subject to the applicable certification requirements.

Responsibilities

• Perform manual functional, regression, and exploratory testing of web and mobile applications.
• Design, maintain, and execute test cases and test scenarios.
• Test backend functionality and APIs, CMS-based platforms, and mobile applications.
• Identify, document, and track defects, ensuring clear reproduction steps and useful supporting evidence.
• Validate application behavior across different devices, platforms, and language versions.
• Collaborate with developers, QA colleagues, and other stakeholders to investigate and resolve issues.
• Participate in Agile ceremonies and coordinate testing activities within a distributed team.
• Maintain test documentation and report testing progress and results.
• Use Jira and Xray for test management and defect tracking, alongside Slack and Microsoft Teams for collaboration.
• Communicate with German-speaking stakeholders and use English for collaboration where required.

Culture:

At Techstack, we care about how we build products — not only about the result, but also about the quality of the engineering process and the way we work together.

We encourage people to keep learning, share what they know, and take ownership of their work.

Tech Guilds — communities where specialists share knowledge, discuss technical solutions and approaches, and keep up with industry trends.

Meetups and knowledge sharing — opportunities to share your experience with colleagues and the wider tech community.

Mentoring and leadership — opportunities to grow as a mentor, technical lead, or take on other roles where you can support others and share your expertise.

We believe that good products come from people who care about what they build, keep developing their expertise, and are comfortable both challenging ideas and being challenged.

What we offer

• A long-term international project engagement.
• Remote-first collaboration under a B2B contract.
• A part-time workload of approximately 45 hours per month, suitable for combining with other professional commitments.
• Collaboration with a distributed team and exposure to web, CMS, and mobile testing.
• Occasional business trips to Vienna, up to three days per year, with travel expenses covered.

See yourself in this role? Send us your resume and let’s start the conversation!

Umbrelly.Cloud is a B2B US product company.
 
Our mission is to help businesses which use AWS reduce their cloud bill & provide world-class technical support. Umbrelly is an Official Advanced Tier Partner of AWS, and currently serving 100+ enterprises & startups from US, EU and other Tir 1 countries. 

Our product is useful for the clients, we have excellent reviews from the customers and great reputation as an AWS Partner. On average clients stays with us 3+ years, it's absolutely "white" product and niche. 

It's easy to market & sell, cause we don't charge customers. Our product is free for clients, since our monetisation comes from AWS for providing technical support and serving their customers. Customers get guaranteed results from Umbrelly. 

We are looking for an Ad Creative Designer who make converting static & video creatives so we can show our great offer to customers. We believe Umbrelly's product should be distributed as wide as possible, so businesses no more waste their budgets on unused AWS resources & cloud waste, and instead use money which Umbrelly save them to grow their businesses. 

What we expect from candidates on Creative Marketing Designer & Manager position: 
- Experience with B2B, SaaS or fintech ads
- 1+ years experience creating static & video creatives & copies for Google Ads & Meta Ads
- metric oriented approach, understanding of key ad metrics of their creatives, like CPL, ROAS, ROI, CAC, LTV & other key numbers.
- Succesfull case studies from you prev projects and portfolio with ads that actually ran and you can share with us during the interview
- Understanding how to collaborate with PPC team or basic experience launching Google Ads & Meta Ads campaigns yourself
- Understanding user behavior, hook logic driven by user intent, taste for visuals, creating conversion-focused creatives
- Generating creative ideas for marketing campaigns, identifying trends, uncover insights,  generate fresh creative concepts
- Intermidiate+ English level, experience launching creatives for international markets

Why Umbrelly is a great place to work and grow:
- Short path from idea to launch: you work directly with our marketing lead, without layers of approvals
- Unlimited potential to scale: as long as CPL & ROAS are in the needed range, we keep scaling the budget, and that means more creatives
- If you ambitious and deliver results during 6 months in a row, you can grow into a Creative Lead
- Case Study which you can proudly add to your portfolio, without saying on next job interview "under NDA"
- Umbrelly.Cloud is runned by experienced C-level team and backed by prominent investors

Apply for the vacancy and open your contacts on djinni, let's talk! 

Role Overview:

We are seeking a highly experienced Senior Node.js Engineer to join our growing engineering team. As a senior member of our team, you will take on a leadership role in designing, implementing, and scaling highly performant systems. You will work with cloud infrastructure, primarily AWS, and build robust microservices, Big Data processing services, and data platforms that support high-load, real-time applications.

You will be responsible for architecting complex systems, ensuring scalability and efficiency while also providing mentorship to junior developers. This is an exciting opportunity for a self-driven, technically versatile engineer who is comfortable working independently and thrives in a fast-paced, collaborative environment.

Key Responsibilities:

• Architecture & Design: Lead the architecture and design of high-performance, scalable, and fault-tolerant Node.js applications, microservices, Big Data processing systems, and data pipelines running in a cloud environment (primarily AWS).
• Cloud Infrastructure: Utilize AWS services such as EC2, Lambda, RDS, S3, Kafka/MSK, SQS, and others to ensure that applications and data platforms are highly available, secure, and performant.
• Microservices & Event-Driven Systems: Build and manage distributed, high-load microservices and event-driven architectures that can scale effectively and handle large volumes of concurrent traffic and data.
• Data Infrastructure: Design and develop integrations and Big Data processing pipelines that ingest, transform, and distribute large volumes of data across operational and analytical systems.
• High-Performance Systems: Optimize Node.js applications and data processing workloads for performance under high load, ensuring minimal latency and maximum throughput.
• Multithreading: Implement advanced multithreading techniques to enhance system performance and concurrency.
• Code Quality & Best Practices: Write clean, maintainable, and efficient code while adhering to industry best practices and design patterns.

Part of the role will include integration with multiple external APIs, processing large volumes of data, and compiling it in a flexible way to accommodate various operational and analytical requirements.

Requirements

• 4+ years of Back end development
• In-depth knowledge and experience developing API’s and microservices
• Strong proficiency with JavaScript, and Knowledge of Node.js and frameworks available for it (such as Express or equivalent)
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Understanding fundamental design principles behind a scalable application
• Experience working with various data storage solutions such as Redis, MongoDB, etc.
• Experience working with Queuing solutions such as gearman, RabbitMQ, SQS, etc.
• Implementing automated testing modules and unit tests
• Proficient understanding of code versioning tools, such as Git
• Experience with cloud services such as AWS and GCP
• Experience working with Linux
• Experience with CI/CD processes
• Bonus - Familiarity with K8S, and related frameworks such as helm, Argo-cd, Prometheus, etc.

We are looking for an experienced, performance-driven Creative Strategist with a strong Direct Response Copywriting background, capable of developing, testing, and scaling winning creatives for DTC brands, primarily on Meta (Facebook/Instagram).

Key Responsibilities:

• Conduct competitor, audience, and market research, continuously analyzing winning ads, emerging trends, hooks, and creative formats.
• Identify successful patterns and translate them into original, high-converting creative concepts.
• Write compelling Direct Response ad scripts, hooks, VSL-style concepts, and copy aligned with campaign objectives.
• Create, test, and iterate static ads, UGC concepts, and video scripts, focusing on finding and scaling winning creatives.
• Manage and coordinate UGC creators through a dedicated creator platform.
• Collaborate with video editors and creators, reviewing creative execution and analyzing results to improve future scripts and concepts.
• Use performance data to understand why creatives succeed or fail and continuously optimize for conversions and scale.

Required Experience:

• Proven experience as a Creative Strategist and/or Direct Response Copywriter working with DTC/eCommerce brands.
• Hands-on experience with Meta advertising campaigns spending at least $5,000 per day.
• Strong Direct Response fundamentals, including consumer psychology, persuasive copywriting, hooks, offers, and sales messaging.
• Experience writing video ad scripts, UGC concepts, and conversion-focused static ads.
• Strong analytical skills and the ability to turn competitor research and campaign performance into actionable creative ideas.

Nice to Have:

• Experience writing VSLs (Video Sales Letters) and long-form Direct Response copy.
• Participation in Copy Dojo or similar advanced copywriting communities.
• Experience working with high-revenue DTC brands and scaling creative performance.
• Demonstrated track record of developing winning ads that successfully scaled.

About the Role

We are looking for a Senior DevOps Engineer to join its in-house platform team (team of 5) as an embedded offshore engineer. You will own Kubernetes workloads on AWS, GitOps delivery with ArgoCD, CI/CD pipelines, and the observability stack — and treat internal dev teams as your customers. The role includes an on-call rotation.

Must-haves

• 5+ years hands-on DevOps experience in cloud-based environments, ideally in startups / scale-ups serving large enterprise customers.
• Kubernetes in production (EKS): workload management, networking, troubleshooting.
• ArgoCD / GitOps and CI/CD pipelines (e.g. GitHub Actions): build, maintain, extend and debug independently; able to walk through real CI/CD flows you designed.
• Observability: hands-on ELK stack (Elasticsearch, Logstash/Fluentd, Kibana) and Grafana — writing alerts, dashboards and runbooks. Datadog, Coralogix or Groundcover a plus.
• Terraform (IaC) in production.
• AWS: EKS, RDS, MSK, SQS/SNS, Lambda.
• Scripting in Python and Bash.

Nice-to-haves

• Kafka, MongoDB, Redis or SingleStore.
• Pulumi or Flux.
• Basic FinOps / cloud cost awareness.
• AI-driven approach: uses AI tooling day to day to reduce toil and automate work.

Soft skills

• High ownership end-to-end — not just until the PR is merged.
• Strong written and spoken English; active in async Slack discussions, writes clear technical summaries.
• Service mindset: internal developers are the customer; responds fast and follows through until resolved.
• Works independently with minimal hand-holding; flags blockers and risks early.

Role Overview:

We are looking for a Senior 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:

• 3-5 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.

Role Overview:

We are looking for a Senior-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:

• 3-5 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.

 We're Hiring: Web Scraping Support Engineer (Remote)

Hello everyone! Massive is looking for a Web Scraping Support Engineer to join our fully remote team. If you dream in selectors, wake up parsing HTML, and genuinely enjoy helping people solve gnarly data extraction problems — this one's for you.

 What is Massive?
Massive is an infrastructure company powering data-driven innovation at scale. We operate a global proxy network, build managed APIs for search engines (SERP), and Web Unblocking API to bypass anti-bot measures for large-scale data collection and processing.

 Why This Role Is Different
Most support roles are reactive. This one isn't. You're the person customers trust when their scraping pipeline breaks at 2 AM, when a target site changes its structure overnight, when nothing works and nobody knows why. You don't just answer tickets — you solve problems that other engineers can't.

 Who We're Looking For
 

• Troubleshoots in Their Sleep: Broken selectors, anti-bot walls, rotating proxies, CAPTCHAs, headless browser quirks — you've seen it all and you fix it before your coffee gets cold
• AI is your best friend - you know how to leverage AI to be 10X faster and more productive
• Customer-Obsessed & Likable: You're the person customers ask for by name. You explain complex concepts in plain language and people genuinely enjoy working with you
• Can Scrape Anything, Anywhere: SPAs, paginated APIs, rate-limited endpoints, geo-restricted content — if it's on the web, you know how to extract it
• Consumes Data for Breakfast: You think in JSON, dream in XPath, and get excited about a well-structured dataset
• Relentlessly Organized: Your support board is pristine. Every ticket triaged, every follow-up tracked, every edge case documented. Nothing slips through — ever
• Curious Builder: When you notice the same issue three times, you don't just fix it — you automate the solution so it never comes back

 What You'll Be Doing
 

• Own the support board end-to-end with the support team — triage, prioritize, resolve, and follow up on every ticket
• Debug complex web scraping issues across proxy configurations, browser automation, and API integrations
• Help customers build, optimize, and fix their scraping pipelines
• Reproduce issues, identify root causes, and escalate bugs with full context to engineering
• Write documentation and guides that reduce repeat tickets

 Bonus Points
 

• Experience with Puppeteer, Playwright, Selenium or similar browser automation
• Hands-on with proxy networks and IP rotation strategies
• Familiarity with anti-bot systems (Cloudflare, Akamai, PerimeterX, DataDome)
• Working knowledge of Python, Node.js, or scripting languages for data extraction
• no satisfaction until all the work is done and then some

 Ready to Scrape the Future With Us?
Skip the generic resume. Show us something real — a scraper you built, a gnarly problem you debugged, a support process you transformed. We care about what you can do, not where you went to school.
If you read this and thought "finally, someone gets it" — trust that feeling. Apply now.

B2B AI SaaS Sales Representative — Sembly AI

Sembly AI helps professional teams turn meetings into actionable insights, automated workflows, and client-ready deliverables. We bring meeting intelligence and AI-powered productivity into the tools and processes businesses use every day.
 

We’re looking for an engaging, technically proficient sales professional who builds strong customer relationships and turns opportunities into revenue. You’ll own the sales cycle—from generating leads and running discovery to delivering demos, navigating requirements, and closing deals.
 

What you’ll do

• Build and close pipeline. Develop your own leads through targeted outreach, networking, and prospect research, while converting inbound interest into qualified opportunities.
• Lead consultative sales conversations. Understand customers’ workflows, pain points, and buying criteria. Deliver tailored demos that connect Sembly’s capabilities to measurable business value.
• Build lasting relationships. Establish trust with champions, decision-makers, and technical stakeholders through thoughtful conversations and consistent follow-through.
• Handle objections and sharpen competitive positioning. Address concerns around value, pricing, adoption, security, and alternatives. Create and maintain practical battle cards based on competitor research and real sales conversations.
• Navigate technical and compliance requirements. Identify integration needs involving APIs, MCP (Model Context Protocol), and webhooks. Coordinate SOC 2 documentation, security reviews, and technical discussions with the appropriate internal teams.
• Use AI to improve sales execution. Apply AI agents, research tools, and automation to prospecting, account preparation, personalized outreach, follow-ups, and CRM maintenance.
• Keep the CRM accurate and actionable. Maintain opportunity stages, next steps, stakeholder information, and reliable forecasts.
• Work closely with Marketing and Customer Success. Share buyer insights, refine messaging and campaigns, and ensure smooth handoffs with clear customer goals and expectations.
   

What you bring

• 3+ years of B2B SaaS sales experience, with demonstrated success closing deals and achieving revenue targets.
• A warm, engaging communication style, strong listening skills, and the ability to build rapport and credibility quickly.
• Strong discovery, presentation, negotiation, and objection-handling skills.
• Technical fluency: you learn software quickly, demonstrate it confidently, and explain technical concepts clearly to business audiences.
• Practical experience using AI tools and agents to support your sales process.
• Familiarity with enterprise buying processes, SOC 2 security reviews, and integration requirements involving APIs, MCP, and webhooks.
• Experience managing pipeline and reporting in a CRM; Attio experience is a plus.
• Confidence generating your own leads and independently moving opportunities forward.
• Excellent spoken and written English and the ability to collaborate across international teams.
   

What success looks like

A healthy pipeline that includes self-generated opportunities, consistent revenue delivery, accurate forecasts, and customers who enter onboarding with clear expectations. Your insights also help Marketing improve messaging and Customer Success support adoption.
 

Why Join Sembly? 

• Exciting Product: We are pioneers in a new AI-enabled product category.
• Product-Market Fit: We have thousands of users. The product works. We need you to pour fuel on the fire.
• Work Culture: We have a high-energy, high-performance, and fun working environment that you'll enjoy being a part of.

About the Role (Node.js)

We're looking for a curious and motivated Junior Backend Engineer to join our team. You'll be building backend services and REST APIs and working with AWS or Azure infrastructure.

Our projects use Python or C#, but since all of our code is written with AI, we are considering candidates with any OOP language, including JavaScript and Java. What matters is how you think about software: object-oriented design, APIs, and data.

We work in pairs — juniors are always paired with another junior or someone at a similar level, not just for code reviews, but for day-to-day coding, architecture decisions, and problem solving, with seniors close by whenever you need help. This is production work: you'll ship services that customers rely on, with the safety net of another teammate beside you.

The client is US-based, so the team works US business hours; for engineers in Ukraine, this means your working day ends around midnight Kyiv time. This role can be full-time or part-time, depending on your availability.

What You'll Work On

• Backend Services & APIs — build and maintain REST APIs and backend services for client platforms, with clear contracts and automated tests.
• AWS or Azure Infrastructure — work with cloud infrastructure on AWS or Azure, depending on the project.
• CI/CD using GitHub Actions or Azure DevOps pipelines.

Tech Stack

• Backend — Our projects use Python or C#, depending on the engagement. You do not need to know either one — all code is written with AI, and you'll learn the project's framework on the job.
• Cloud — AWS or Azure, depending on the engagement. Nice-to-have, not required.

Working Hours & Format

This role can be full-time or part-time, depending on your availability. It's fully remote. Our client operates on US business hours, so the schedule needs to align with US time zones — for engineers based in Ukraine, your working day will end around midnight Kyiv time.

Requirements

Solid fundamentals in OOP and comfort with at least one OOP language — it does not matter which.

Exposure to AWS or Azure is a plus, but not required — you'll pick up what you need on the job. We care more about your curiosity and attitude than your CV.

About the Role (Java)

We're looking for a curious and motivated Junior Backend Engineer to join our team. You'll be building backend services and REST APIs and working with AWS or Azure infrastructure.

Our projects use Python or C#, but since all of our code is written with AI, we are considering candidates with any OOP language, including JavaScript and Java. What matters is how you think about software: object-oriented design, APIs, and data.

We work in pairs — juniors are always paired with another junior or someone at a similar level, not just for code reviews, but for day-to-day coding, architecture decisions, and problem solving, with seniors close by whenever you need help. This is production work: you'll ship services that customers rely on, with the safety net of another teammate beside you.

The client is US-based, so the team works US business hours; for engineers in Ukraine, this means your working day ends around midnight Kyiv time. This role can be full-time or part-time, depending on your availability.

What You'll Work On

• Backend Services & APIs — build and maintain REST APIs and backend services for client platforms, with clear contracts and automated tests.
• AWS or Azure Infrastructure — work with cloud infrastructure on AWS or Azure, depending on the project.
• CI/CD using GitHub Actions or Azure DevOps pipelines.

Tech Stack

• Backend — Our projects use Python or C#, depending on the engagement. You do not need to know either one — all code is written with AI, and you'll learn the project's framework on the job.
• Cloud — AWS or Azure, depending on the engagement. Nice-to-have, not required.

Working Hours & Format

This role can be full-time or part-time, depending on your availability. It's fully remote. Our client operates on US business hours, so the schedule needs to align with US time zones — for engineers based in Ukraine, your working day will end around midnight Kyiv time.

Requirements

Solid fundamentals in OOP and comfort with at least one OOP language — it does not matter which.

Exposure to AWS or Azure is a plus, but not required — you'll pick up what you need on the job. We care more about your curiosity and attitude than your CV.

About the Role (Backend)

We're looking for a curious and motivated Junior Backend Engineer to join our team. You'll be building backend services and REST APIs and working with AWS or Azure infrastructure.

Our projects use Python or C#, but since all of our code is written with AI, we are considering candidates with any OOP language, including JavaScript and Java. What matters is how you think about software: object-oriented design, APIs, and data.

We work in pairs — juniors are always paired with another junior or someone at a similar level, not just for code reviews, but for day-to-day coding, architecture decisions, and problem solving, with seniors close by whenever you need help. This is production work: you'll ship services that customers rely on, with the safety net of another teammate beside you.

The client is US-based, so the team works US business hours; for engineers in Ukraine, this means your working day ends around midnight Kyiv time. This role can be full-time or part-time, depending on your availability.

What You'll Work On

• Backend Services & APIs — build and maintain REST APIs and backend services for client platforms, with clear contracts and automated tests.
• AWS or Azure Infrastructure — work with cloud infrastructure on AWS or Azure, depending on the project.
• CI/CD using GitHub Actions or Azure DevOps pipelines.

Tech Stack

• Backend — Our projects use Python or C#, depending on the engagement. You do not need to know either one — all code is written with AI, and you'll learn the project's framework on the job.
• Cloud — AWS or Azure, depending on the engagement. Nice-to-have, not required.

Working Hours & Format

This role can be full-time or part-time, depending on your availability. It's fully remote. Our client operates on US business hours, so the schedule needs to align with US time zones — for engineers based in Ukraine, your working day will end around midnight Kyiv time.

Requirements

Solid fundamentals in OOP and comfort with at least one OOP language — it does not matter which.

Exposure to AWS or Azure is a plus, but not required — you'll pick up what you need on the job. We care more about your curiosity and attitude than your CV.

Techstack is a technology product engineering company that sets an example for high development standards in the IT industry. We empower each team member to influence the development of the product, company, and processes.

About the role:

We are looking for a Junior Manual QA Engineer for a long-term(4 years) part-time B2B engagement.

This opportunity is ideal for QA professionals who have initial commercial testing experience and are looking for an additional project alongside their current employment or freelance engagements.

Language requirements:

German: B2 or higher, with documented proof of proficiency.

English: B2 or higher, with documented proof of proficiency.

The project involves testing a multilingual web platform powered by a CMS, as well as a mobile application available on iOS and Android. The web platform supports more than 12 languages, making functional consistency, content accuracy, and user experience across different language versions important aspects of the testing process.

You will collaborate with an international, distributed team, contribute to testing activities, and help ensure a reliable experience for users across web and mobile platforms.

The role is primarily remote and includes occasional on-site testing sessions in Vienna, up to three days per year. Business travel expenses will be covered.

Requirements:

• At least 1 year of commercial software testing experience.
• ISTQB Certified Tester Foundation Level (CTFL) certification.
• Practical testing experience in at least one of the following areas:
  • Backend or API testing.
  • CMS testing.
  • Mobile application testing for iOS and/or Android.
• Familiarity with Agile methodologies.
• Ability to document test results and report software defects clearly.
• German proficiency at B2 level or above.
• English proficiency at B2 level or above.
• Documentary proof of both language levels, subject to the applicable certification requirements.

Responsibilities:

• Execute manual functional and regression tests for web and mobile applications.
• Follow existing test cases and contribute to maintaining test documentation.
• Identify, reproduce, document, and report software defects.
• Verify application functionality across different user scenarios and language versions.
• Support testing activities for CMS-based platforms, backend functionality, APIs, and mobile applications, depending on project needs.
• Collaborate with developers and QA colleagues to clarify issues and verify fixes.
• Participate in Agile team activities and communicate testing progress.
• Track defects and test execution results using Jira and Xray.
• Use Slack and Microsoft Teams to collaborate with team members.
• Communicate with German-speaking stakeholders and use English for collaboration where required.

Culture:

At Techstack, we care about how we build products — not only about the result, but also about the quality of the engineering process and the way we work together.

We encourage people to keep learning, share what they know, and take ownership of their work.

Tech Guilds — communities where specialists share knowledge, discuss technical solutions and approaches, and keep up with industry trends.

Meetups and knowledge sharing — opportunities to share your experience with colleagues and the wider tech community.

Mentoring and leadership — opportunities to learn from experienced colleagues, develop your expertise, and gradually take on more responsibility.

We believe that good products come from people who care about what they build, keep developing their expertise, and are comfortable both challenging ideas and being challenged.

What we offer

• A long-term international project engagement.
• Remote-first collaboration under a B2B contract.
• A part-time workload of approximately 45 hours per month, suitable for combining with other professional commitments.
• The opportunity to gain experience with web, CMS, and mobile testing in an international environment.
• Collaboration with a distributed team.
• Occasional business trips to Vienna, up to three days per year, with travel expenses covered.

See yourself in this role? Send us your resume and let’s start the conversation!