Jobs at Djinni

🌎Akvelon is an American company with offices in Seattle, Mexico, Ukraine, Poland, and Serbia etc. Our company is an official vendor of Microsoft and Google. Our clients also include Amazon, Evernote, Intel, HP, Reddit, Pinterest, AT&T, T-Mobile, Starbucks, and LinkedIn. To work with Akvelon means to be connected with the best and brightest engineering teams from around the globe and working with an actual technology stack building Enterprise, CRM, LOB, Cloud, AI and Machine Learning, Cross-Platform, Mobile, and other types of applications customized to client’s needs and processes.

We are looking for proactive Junior-Middle .NET Engineers.
You will play a key role in developing and maintaining backend integrations using C# across both .NET Framework and modern .NET, supporting tools and services running on Linux and Windows platforms. You will also contribute to improving support processes by writing Technical Support Guides (TSGs), and will be responsible for providing DRI support. This role offers the opportunity to work on high-impact systems in a dynamic, cross-platform environment.

Responsibilities:

• Design, develop, and maintain scalable backend services using C# and .NET
• Automate existing manual processes to improve efficiency
• Perform bug fixes to ensure application reliability and performance
• Handle incident resolution promptly to maintain system uptime and user satisfaction
• Provision and manage Azure IaaS resources, including Virtual Machines and App Services
• Utilize Azure monitoring tools
• Ensure seamless integration with downstream data sources
• Collaborate with cross-functional teams to define software architecture and solutions

Requirements:

• 2+ years of professional experience with С#,.NET Framework & .NET (Modern)
• Experience with or ability to quickly ramp up on Azure Functions
• Knowledge of Linux operating systems, networking and debugging issues with Linux
• Knowledge of Windows OS, networking and debugging issues

Nice to Have:

• Development knowledge of Angular
• Basic familiarity with Kusto Query Language (KQL) for querying and analyzing data
• Site Reliability Engineering (SRE) experience

Overlap time requirements:

DRI shifts are expected:

• 8/7, during 9am-5pm CET Mon-Sun, public holidays are included
• 8/7, during 9am-5pm CET Mon-Fri regular business hours
• 12/7, during 9am-9pm CET Mon-Sun, public holidays are included
• 12/5, during 9am-9pm CET Mon-Fri, public holidays are excluded
• 8/5, during 9am-5pm CET Mon-Fri regular business hours

Working conditions and benefits:

• Paid vacation, sick leave (without sickness list)
• Official state holidays — 9 days considered public holidays
• Professional growth while attending challenging projects and the possibility to switch your role, master new technologies and skills with company support
• Flexible working schedule: 8 hours per day, 40 hours per week
• Personal Career Development Plan (CDP)
• Employee support program (Discount, Care, Health, Legal compensation)
• Paid external training, conferences, and professional certification that meets the company’s business goals
• Internal workshops & seminars

Join us and take your career to the next level!

Founded in 1999, the company has a premium listing on the Main Market of the London Stock Exchange and is focused on regulated and regulating markets across its B2B and B2C businesses. Both divisions leverage Playtech’s proprietary technology to deliver innovative products and services to ensure a safe, engaging and entertaining betting and gaming experience. 

Playtech is the gambling industry's leading technology company delivering business intelligence-driven gambling software, services, content, and platform technology across the industry's most popular product verticals, including, casino, live casino, sports betting, bingo and poker. Read more about who we are and what we do here: www.playtech.com & www.playtechpeople.com 
 
Here at Playtech, we genuinely believe that people are our biggest asset. Diverse thoughts, experiences, and individual characteristics enrich our work environment and lead to better business decisions. Recognizing differences and ensuring our processes are transparent is the core of Playtech’s overall commitment to responsible business practices.

Ready to level up your career? 

Playtech‘s Casino team is looking for a diligent and meticulous Release Coordinator with willing to work in an international environment.  This is a fixed-term position for 1+ year, created to provide coverage during an employee’s maternity leave.

Job Description

Your influential mission. You will...

• Coordinate daily release activities across multiple teams, ensuring alignment on scope, defect management, and deadlines
• Maintain and update release-related information with accuracy and consistency
• Prepare clear and concise release notes by gathering data from various sources
• Provide regular status updates to stakeholders
• Support prioritization of defects and tasks across teams to ensure smooth delivery

Qualifications

Components for success. You...

• Have a strong willingness to learn and grow in a dynamic IT environment
• Are fluent in English, both spoken and written
• Excel at multitasking and can perform well under pressure and tight deadlines
• Possess excellent communication and interpersonal skills
• Demonstrate a self-motivated, proactive, and detail-oriented mindset

You'll get extra points for...

• Previous experience working on IT projects
• Familiarity with international/multinational team environments
• Understanding of software development methodologies such as Scrum, Kanban, or Waterfall
• Hands-on experience with Atlassian tools (JIRA, Confluence, Bitbucket)
• Solid working knowledge of MS Excel

Thrive in a culture that values...

• Collaboration across diverse teams
• A proactive approach to problem-solving
• Precision in communication and documentation
• Continuous improvement and knowledge sharing
• Accountability and ownership in day-to-day responsibilities

Additional Information

HOW TO APPLY?  

In addition to your CV, please add a brief motivation letter covering your goals, your current experience, or related fields and/or working in a project team. You can write it in the comment section at the end of the application page (under "your message to the hiring manager"). 

CASINO UNIT

Casino products are the flagship of Playtech’s products, offering an industry-leading selection of online games together with a state-of-the-art platform for seamless integration with our business customers’ websites. We ensure to deliver a thrilling web experience content library that includes a slot, table/card, fixed odds games, and more. Some of the movie and entertainment brands we have collaborated with, include DC, MGM, and NBC Universal. Casino Unit is represented in the following locations: Estonia, Bulgaria, and Ukraine and includes around 300 great employees in total, who build the most extensive games portfolio across the industry.

 Playtech is an equal opportunities employer. Our mission is to welcome everyone and create inclusive teams. We celebrate differences and encourage everyone to join us and be themselves at work. 

Job Location

• Project Description:

  Our product is specializing in drilling fluid solutions for various industries, including oil and gas, water well drilling, and construction. Baroid IDP (Industrial Drilling Products) is a part of Halliburton that focuses on the non-oil and gas drilling sectors
  The product line is dedicated to the non-oil and gas drilling industries, offering products and services for drilling, grouting, plugging, abandonment, well rehabilitation, and well development.

• Responsibilities:

  Design, develop, and maintain backend services and APIs using ASP.NET Core to support a cross-platform social networking application (Android, iOS, Web).
  Build robust and scalable systems to handle user authentication, data storage, media uploads, messaging, notifications, and activity feeds.
  Implement real-time features using WebSocket or similar technologies.
  Ensure high performance, availability, and security of the backend infrastructure.
  Work closely with frontend and mobile developers to align API design with UI/UX requirements.
  Write clean, well-documented, and testable code following best practices and coding standards.
  Participate in architectural planning, code reviews, and performance tuning.

• Mandatory Skills Description:

  Requirements:
  
  
  Around 4+ years of experience in .NET Framework C#
  Relevant experience with making websites and web APIs with ASP.NET Web API, MVC
  Experience with ORMs (Entity Framework), Dapper, and ADO.NET
  MS SQL Server, T-SQL
  Understanding of Windows Services
  Experience with front-end (HTML/CSS, AngularJS, Angular 2+(17))
  Experience with Azure cloud infrastructure would be a plus.

• Nice-to-Have Skills Description:

  no special skills apar the described above

We are looking for a Senior .NET Developer to dive deep into an exciting product and impact the industry with incredible creativity.

We are looking for a Senior .NET Developer to support an internal security initiative to eliminate various forms of credentialed access across our code base. This role is focused on identifying, documenting, and replacing these sensitive secrets with Managed Identity (MI) or other credential-less alternatives across dozens of services and pipelines.
You will communicate directly with the Director of Engineering on the customer side.

Project duration: 4-6 months

Customer

Our customer is the world’s leading software company dedicated to the success of IT solution providers. Their vision is to power a thriving IT ecosystem that transforms what’s possible for SMBs, by empowering IT solution providers with unmatched software, services, and a community that will help them to achieve their most ambitious goals. The tools being developed are used by IT service providers to automate their activities for small and medium sized businesses (SMBs), such as backup and restore, providing security, and performing administrative tasks on Microsoft 365 tenants.

Project

This is an internal security initiative to eliminate various forms of credentialed access across the entire product code base.

Responsibilities

• Work closely with the leadership team to identify, categorize, and document security items
• Identify Azure DevOps pipelines and other types of infrastructure that may also be impacted
• Monitor adjacent access (user or IP-based) that may be of interest (e.g. a user added to Azure SQL)
• Develop proofs of concept for tackling the various available authentication upgrade paths and provide feedback on the approach
• Work closely with and present findings to leadership to make the best decision for refactoring
• Maintain awareness of both local and deployed needs
• Implement the agreed upon solutions and patterns across multiple projects and repositories
• Consider unit and integration tests
• Work closely with the development team to deploy and monitor releases

Requirements

• At least 5 years of commercial experience in .NET development
• Excellent knowledge of C# programming language and .NET platform (.NET Core)
• Strong knowledge of Azure Managed Identity, Key Vault, Azure DevOps pipelines, and YAML
• Experience with Azure database services (Azure SQL, Cosmos DB, ADX)
• Experience of working with service-to-service authentication patterns
• Strong technical documentation skills

• At least Upper-Intermediate level of English

   

Personal Profile

• Excellent communication and interpersonal skills with the ability to collaborate effectively with cross-functional teams and stakeholders
• Strong problem-solving and decision-making skills, focusing on driving results and meeting deadlines
• Self-motivated, adaptable, and eager to learn new technologies and frameworks

Hi there!
 

We’re looking for a Senior Product Designer to join our growing team and help us improve our product and provide excellent user experience for our customers.
 

About us:

We are a mobile and web application (Web, iOS, Android) that enables easy and fast purchases of mobile data packages in any country in the world, leveraging eSIM technology;

Our product allows seamless use of internet services while traveling at rates much lower than roaming and without having to search for local operators or purchase physical SIM cards. 

What you’ll do

• Own and lead the end-to-end design process — from ideation and wireframing to prototyping and handoff — for new and existing product experiences.
• Collaborate closely with product managers, engineers, and other stakeholders to create seamless, user-centered solutions.
• Design clear and effective user flows, customer journeys, wireframes, and interactive prototypes to communicate ideas and validate hypotheses.
• Conduct and apply insights from user research, usability testing, and competitor analysis.
• Perform design QA and post-release reviews to identify opportunities for improvement.
• Proactively identify ways to improve core business flows (e.g., purchase funnel) to support growth, retention, and conversion goals.
• Formulate product hypotheses and contribute to their validation using both qualitative and quantitative methods.

What we’re looking for

• 4+ years of hands-on product design experience working on a digital product (web/app). 
• Strong portfolio showcasing UI/UX design skills, interaction design, and design thinking methodologies.
• Ability to work with data and insights to inform design decisions and iterate on solutions.
• Deep understanding of design systems, responsive design, and accessibility best practices.
• Experience in conducting or participating in usability testing, user interviews, and surveys.
• At least upper intermediate English level (all work communication in English). 
• Proactive mindset with a focus on measurable outcomes and impact.

Why you should join Ohayu

We’re a small team, building a travel-focused eSIM used by people around the world. You are joining early, so your work will have a real impact on the Ohayu product and brand.

This is a great opportunity to build on the existing design system and processes and grow into a lead role.

Want to become part of the team and build something great together? - Apply now!

🌲 Tree Solutions – Full-Stack Next.js Developer (Middle Level)

🚀 Immediate Start – Apply Now!

🔍 Who We're Seeking

We're looking for a Middle-level Full-Stack Next.js Developer with solid production experience. You must have proven expertise with our tech stack, excellent multitasking abilities, and thrive independently in a dynamic environment.

⚙️ Essential Tech Skills:

• Next.js: SSR, App Router, API routes, middleware, performance.
• Node.js: REST APIs, async patterns, backend logic.
• Nest.js: Structured backend APIs, services, and controllers.
• React (Next.js): Advanced hooks, state management, reusable components.
• Prisma/Drizzle ORM: Schema modeling, migrations, PostgreSQL.
• Tailwind CSS: Responsive, utility-first UI design.
• Clerk/Auth solutions: Authentication and authorization (OAuth, JWT, RBAC).
• AWS Basics: Deployment, CI/CD, environment management.

🧩 Responsibilities:

• Develop scalable web apps with Next.js, Nest.js, and Node.js.
• Collaborate closely with product and design teams.
• Optimize application performance.
• Produce clean, maintainable, and testable code.

💬 Soft Skills:

• English: Upper-Intermediate+
• Excellent communication and collaboration.
• Highly proactive with strong multitasking skills.

🌍 About Project:

Tree Solutions specializes in Web Development, AI integrations, and Machine Learning, delivering high-impact solutions to clients in the US and EU. Join a team that values innovation, teamwork, and continuous growth.

💼 We Offer:

• Meaningful, real-world projects including an AI-driven chat platform and diverse side projects.
• Influence over tech decisions.
• Professional growth and competitive pay.

📩 Ready to join us? Apply now and build something impactful with Tree Solutions!

To strengthen our development team we are looking Full-stack developer which will help us to implement product features and launch the product.
 

What skills can you help us with: 
— 5+ years of experience using Angular+Nest.js/Node.js
— Knowledge of MySQL and/or PostgreSQL
— Experience with building scalable systems
— Experience with event driven architecture
— Experience with Redis
— English Upper-Intermediate and above
 

Such expertise would be a plus: 
— Degree in Computer Science, Applied Mathematics, or in a related field
— Containers Concepts (Docker)
— Experience with Kubernetes
 

What will you be doing? 
— Work on a B2B product that will be used by tens of thousands of users.
— Creation of server-side APIs.
— Development of the system architecture.
— Providing feedback during development cycles regarding technical constraints.
— Project and development bug fixing.
 

Advantages of working with us: 
— 18 working days of vacation, paid sick leave
— Full financial and legal support for private entrepreneurs
— Flexible work schedule
— Paid training programs/courses
— Team buildings and corporate activities
 

Stages of the interview: 
— HR-interview (15-30 min)
— Tech-interview (60 min)
— Tech-interview with the client (60 min)

Applefy - Premium Web & Mobile Development Company.

We specialize in building high-quality Mobile and web products, 
ensuring excellence in every project. 
Based in Ukraine and the EU, we can effectively collaborate with clients from Europe, the US, and Asia.

We are looking for an experienced LLM Engineer to lead the development of a scalable MVP using cutting-edge Retrieval-Augmented Generation (RAG) and fine-tuning techniques. This role is ideal for someone who thrives in startup environments and can take ownership of end-to-end LLM pipeline development.

What We Offer:

• Flexible work schedule: Manage your own time and work at your own pace.
• Fully remote: Work from anywhere in the world.
• Comprehensive leave policy: Enjoy all official holidays, 20 days of paid vacation, and 10 sick days without needing a doctor’s note.

Key Requirements:
 

• Proficiency in spoken English
• Strong communication skills
• Design and implement RAG pipelines combining vector search and LLMs.
• Fine-tune open-source or proprietary LLMs for domain-specific tasks.
• Build a scalable and modular MVP ready for future production deployment.
• Integrate with embedding databases (e.g., FAISS, Weaviate, Pinecone).
• Optimize inference and memory usage for cost-effective scaling.
• Collaborate with product and engineering teams on system architecture.
• Ukrainian speaker 
• Keen attention to detail
• Solid understanding of UI/UX principles

Preferred Qualifications:

• A desire to learn and grow professionally
• At least two years of experience in product development
• experience with Compose
• Residency in Ukraine 🇺🇦

Write "Apple" in the proposal.
If you’re ready to take the next step in your career with Applefy.

We’d love to hear from you!
 

About the company:

Softermii (https://www.softermii.com/) is an outsourcing/outstaffing company with more than 10 years of experience in web and mobile application development with a team of more than 130 specialists from 6 countries.

We have withstood multiple challenges, such as COVID-19 pandemic and war aggression against Ukraine, we have secured sustainable development processes, saved all our projects and jobs. Even more – we’re constantly growing.     

Every day we add new projects to our portfolio in the following areas of expertise:

• Healthcare
• Real estate
• Livestream E-commerce
• Fintech (WealthTech, Capital Trading)
• Real-Time Communications (RTC)

In addition, we develop 2 of our own solutions that help our customers get faster applications for video or audio calls (https://www.softermii.com/solutions/vidrtc) or an application for real estate with 3D visualisation

(https://www.softermii.com/solutions/apartmii)

Company’s mission:

Softermii: Succeed Without (L) imitations

We will turn any idea into a valuable product.

Our plans as a company:

We want to move from a regular outsourcing business to an ecosystem of outsourcing, education, and product development companies.

______________________________________________________________________

📲Project:

Our customer is an innovative company that utilises state-of-the-art technology to assist in the care of elderly people. By using predictive algorithms, AI, and IoT home devices, the ecosystem creates an interactive tool that enables care services to better understand and support each elderly individual.

👬Why we have opened this vacancy: Team extension.

👨‍💻Type of cooperation: Full-time, remote.

👯Your responsibilities on the project will be:
-  Lead the Full-Stack team in planning and developing our products end-to-end, optimising high-scale solutions, from the database and the backend to the client-side. Working on web and mobile applications.

- Foster technical excellence. Design and implement robust, scalable solutions using ReactJS and NodeJS as well as Mobile Native.

- Hands-On Development - Actively contribute to coding and technical problem-solving, setting an example for the team by driving high-quality development standards.

- Lead the QA processes, ensuring thorough testing and quality assurance standards are met.

- Mentor and develop engineers to support their high performance and professional growth.

- Partnering with the Product Team to build the product roadmap and drive the technical execution.

- Collaborate with cross-functional teams and stakeholders to define and execute the product roadmap.
- Find the best place to collaborate with stakeholders.

👨🏻‍💻You can be part of the following team: 

Softermii's team: 3 Full-stack engineer, and remote team in Istrael.

App team: 1 TL, 5 devs, 1 Manual QA, 1 AutoQA

Data team: 1 TL, 5 devs

Devops team: 3 devops

Product team: Head, 2 products, 1 designer, 1 medical consultant
You will lead a small team consisting of two developers and will later also manage QA and automation roles (which we plan to open soon).

🕹Tools we use: Jira, Confluence, Git, Figma

🗞Our requirements to you:
- 6+ years of experience in software engineering;

- 2+ years of experience in Leadership;

-  Proven experience in developing and maintaining full-stack applications using React, React Native, and Node.js.

- Strong knowledge and hands-on experience with SQL databases.

- Ability to navigate and enhance both well-written and legacy codebases.

- Proficiency in implementing and recommending improvements based on Object-Oriented Programming patterns and best practices.

- Experience in collaborating effectively with both technical and managerial stakeholders.

- Ability to provide proactive consultancy by offering ideas and suggestions for system and process improvements.

- Skill in identifying edge cases, gaps, and potential issues in code implementations.

- Experience in participating in code reviews and contributing to maintaining high code quality standards.

- Demonstrated experience with Open Source projects.

💥It would be cool if you have experience:
-  Еxperience with Prisma ORM.

- Еxperience with SQS/Kafka, Jenkins (CI/CD), NoSQL/AnalyticsDBs.

👨‍💻Who will you have the opportunity to meet during the hiring process (stages):
HR Softermii, HR Client, Tech, Final interview.

🥯What we can offer you:

• We have stable and highly-functioning processes – everyone has their own role and clear responsibilities, so decisions are made quickly and without unnecessary approvals. 
• You will have enough independence to make decisions that can affect not only the project but also the work of the company.
• We are a team of like-minded experts who create interesting products during working hours and enjoy spending free time together.
• Do you like to learn something new in your profession or do you want to improve your English? We will be happy to pay 50% of the cost of courses/conferences/speaking clubs.
• Do you want an individual development plan? We will form one especially for you + you can count on mentoring from our seniors and leaders.
• Do you have a friend who is currently looking for new job opportunities? Recommend them to us and get a bonus.
• And what if you want to relax? Then we have 32 working days off.
• What if you are feeling bad? You can take 5 sick leaves a year.
• Do you want to volunteer? We will add you to a chat, where we can get a bulletproof vest, buy a pickup truck or send children's drawings to the front.
• And we have the most empathetic HRs (who also volunteers!). So we are ready to support your well-being in various ways.

👨‍🏫A little more information that you may find useful:

- our adaptation period lasts 3 months, this period of time is enough for us to understand each other better;

- there is a performance review after each year of our collaboration where we use a skills map to track your growth;

- we really have no boundaries in the truest sense of the word – we have flexible working day, remote or office is up to you.

Of course, we have a referral bonus system. So if you have a friend who likes our job opening, you can give us their telegram contact, and we in turn will thank you with a bonus if we start working with them!

We are seeking a highly motivated and skilled Shopify App Developer to join our team. The ideal candidate will have strong proficiency in Remix and Node.js, with a proven track record of developing applications. 

You must have hands-on experience with Shopify Polaris Components and a deep understanding of building and deploying apps on the Shopify platform. Familiarity with Shopify’s ecosystem, APIs, and best practices is essential. 

Our product is specializing in drilling fluid solutions for various industries, including oil and gas, water well drilling, and construction. 
The product line is dedicated to the non-oil and gas drilling industries, offering products and services for drilling, grouting, plugging, abandonment, well rehabilitation, and well development.

• Responsibilities:

  Design, develop, and maintain backend services and APIs using ASP.NET Core to support a cross-platform social networking application (Android, iOS, Web).
  Build robust and scalable systems to handle user authentication, data storage, media uploads, messaging, notifications, and activity feeds.
  Implement real-time features using WebSocket or similar technologies.
  Ensure high performance, availability, and security of the backend infrastructure.
  Work closely with frontend and mobile developers to align API design with UI/UX requirements.
  Write clean, well-documented, and testable code following best practices and coding standards.
  Participate in architectural planning, code reviews, and performance tuning.

• Mandatory Skills Description:

  Requirements:
  Around 4+ years of experience in .NET Framework C#
  Relevant experience with making websites and web APIs with ASP.NET Web API, MVC
  Experience with ORMs (Entity Framework), Dapper, and ADO.NET
  MS SQL Server, T-SQL
  Understanding of Windows Services
  Experience with front-end (HTML/CSS, AngularJS, Angular 2+(17))
  Experience with Azure cloud infrastructure would be a plus.

Job description

We’re looking for a senior software engineer with a hands-on mindset and passion for building great product experiences.  The position might grow into a lead/principal software engineer role. 

Our client is a well-funded cybersecurity startup ($24M+ raised) building a real-time application detection & response platform. Using OpenTelemetry and trace analytics, their solution enables enterprises to stop attacks with in-application context into all runtime transactions and behaviors. The company’s mission is to revolutionize application security with real-time anomaly detection and monitoring, automated incident response and rich context.

Key tech stack: React 18, Typescript, Jotai, React-query, ExpressJS, TypeORM, Postgres. Microfront-end architecture built in-house. 

Responsibilities

- Work closely with the tech lead, product owner and other engineers to identify, plan and develop new features

- Explore how LLMs and machine learning can enhance decision-making and reduce friction in the user journey

- Write clean, testable and readable code using appropriate software design patterns

- Own infrastructure and deployments, leveraging CI/CD, Kubernetes, Docker, and cloud-native best practices

- Continuously assess and improve the existing codebase cleanliness and performance

- Review, maintain and refactor existing code to meet the requirements for improved or new features

- Share your engineering wisdom with the rest of the team

Required skills & experience

- 5+ years of commercial experience as a back-end oriented full-stack developer 

- Solid backend skills with TypeScript, Node.js and PostgreSQL, including performance tuning and scaling

- Experience with React, Storybook, and a sharp eye for UX

- Passion for writing clean, well-commented, readable and reusable code

- General understanding of core algorithms, data structures, their applications and tradeoffs

- Upper-intermediate+ level of English

Bonus points

- Experience building AI-enhanced products or working alongside ML/LLM teams

- Tech leadership experience 

- Experience in the cybersecurity domain

- Experience with microfrontend architecture 

- Experience with AWS, CI/CD pipelines, Kubernetes, Docker, and observability practices

- You’re a contributor to open-source software or run your own pet projects

What’s in it for you

- Opportunity to become a part of a boutique software consultancy, working with well-known international customers and highly complex challenges

- Competitive salary

- Paid vacation and sick leave

- Remote-friendly culture

- Internal tech talks and mentorship

- Yearly learning & development budget

- PE administration support

We are looking for a highly skilled and engaged Flutter Developer to play a pivotal role in the development of our flagship mobile and web video streaming application. You will be responsible for building new features, refining existing ones, and ensuring our application is robust, scalable, and a delight to use.

Project is a sports-media platform where content is curated by athletes, verified by the source. No noise. No trolls. Just real-time updates, exclusive content, and insider access—all in one place.

You will be deeply involved in architectural decisions, from managing real-time socket connections and data streams to implementing complex, animated user interactions. The ideal candidate is a problem-solver who thinks deeply about state management and isn't afraid to tackle unique challenges like low-level networking video streaming strategies.

Key Responsibilities:

* Develop and maintain high-quality, responsive, and performant features for our web, iOS and Android video streamign applications using Flutter.
* Architect and implement scalable and maintainable state management solutions using Riverpod and code generation patterns.
* Build complex, fluid, and profiessional user interfaces with custom animations, gestures, and `Hero` transitions.
* Integrate with our extensive Firebase backend, including Firestore, Firebase Auth, Cloud Functions, and Storage.
* Implement and manage features for video and audio streaming, including playback controls, background audio, and camera integration.
* Collaborate on building and maintaining a clean, testable codebase with a strong emphasis on dependency injection and separation of concerns.
* Work with GetStream to integrate live video streaming into the application.
* Troubleshoot and debug complex issues across the full technology stack, from the UI down to the networking layer.

Required Skills & Experience:

* 3+ years of professional experience building and shipping web and mobile applications with Flutter.
* Deep expertise in Riverpod for state management. You should be able to discuss the nuances of different Notifiers, using `ref.listen` for side-effects, and structuring a multi-provider architecture.
* Strong experience with the Firebase ecosystem (Auth, Firestore, Storage, Cloud Functions).
* Proven ability to implement complex and custom UI/UX, including animations, `DraggableScrollableSheet`, `BackdropFilter`, and custom `GestureDetector` logic.
* Experience with declarative navigation using `go_router`.
* Proficiency with modern Dart, including `async/await`, Streams, and code generation tools like `freezed` and `build_runner`.
* A strong understanding of clean architecture principles and a passion for writing testable code.

Nice to Have:

* Familiarity with video/audio packages like `video_player` and `just_audio`.
* Experience implementing in-app purchases (IAP), specifically with `purchases_flutter` (RevenueCat).
* Interest or experience in integrating with Generative AI platforms (e.g., Google Genkit, Firebase Vertex AI).
* A disciplined approach to testing, with experience using `flutter_test`, `mockito`, or `mocktail`.

We offer:

• Competitive salary, long-term employment;

• Honest attitude, individual approach, stability, and keeping promises;

• Flexible schedule, possibility to partially work from home or remotely;

• Personal Development Plan;

• English lessons;

• Support in the war-situation;

• Yoga classes 2 times per week;

• Personal Time Off (Kid’s activities, Car maintenance, Doctor appointment, etc.);

• Supportive and friendly team members.

The position is full-time (40 hours per week) and is expected to last for 3-4 months, with the possibility of extending the collaboration for a longer term.

Job description

We’re looking for a senior software engineer with a hands-on mindset and passion for building great product experiences.  The position might grow into a lead/principal software engineer role. 

Our client is a well-funded cybersecurity startup ($24M+ raised) building a real-time application detection & response platform. Using OpenTelemetry and trace analytics, their solution enables enterprises to stop attacks with in-application context into all runtime transactions and behaviors. The company’s mission is to revolutionize application security with real-time anomaly detection and monitoring, automated incident response and rich context.

Key tech stack: React 18, Typescript, Jotai, React-query, ExpressJS, TypeORM, Postgres. Microfront-end architecture built in-house. 

Responsibilities

- Work closely with the tech lead, product owner and other engineers to identify, plan and develop new features

- Explore how LLMs and machine learning can enhance decision-making and reduce friction in the user journey

- Write clean, testable and readable code using appropriate software design patterns

- Continuously assess and improve the existing codebase cleanliness and performance

- Review, maintain and refactor existing code to meet the requirements for improved or new features

- Share your engineering wisdom with the rest of the team

Required skills & experience

- 5+ years of commercial experience as a front-end oriented full-stack developer 

- Solid skills with React, Storybook, and a sharp eye for UI/UX

- Experience with TypeScript, Node.js and PostgreSQL, including performance tuning and scaling

- Passion for writing clean, well-commented, readable and reusable code

- General understanding of core algorithms, data structures, their applications and tradeoffs

- Upper-intermediate+ level of English

Bonus points

- Experience building AI-enhanced products or working alongside ML/LLM teams

- Tech leadership experience 

- Experience in the cybersecurity domain

- Experience with microfrontend architecture 

- Experience with AWS, CI/CD pipelines, Kubernetes, Docker, and observability practices

- You’re a contributor to open-source software or run your own pet projects

What’s in it for you

- Opportunity to become a part of a boutique software consultancy, working with well-known international customers and highly complex challenges

- Competitive salary

- Paid vacation and sick leave

- Remote-friendly culture

- Internal tech talks and mentorship

- Yearly learning & development budget

- PE administration support

What are we doing?
Develux is an IT software development company focused on the US market. Since 2014, we’ve excelled in four business units, growing to 250+ dedicated specialists ready for new challenges.

Project Overview
We operate in ed-tech, helping hundreds of thousands of students with academic needs. Our platform offers academic paper writing services, allowing clients to select work types, set requirements, and communicate directly with authors. We’re continuously expanding our product’s functionality to enhance customer experience and improve financial results.

We are looking for you if you have: 

• Proven experience in behavioral analytics, data analysis, and data visualization (3+ years)
• Proficiency in data analysis tools
• Experience with data visualization tools like Tableau, Power BI, or equivalent
• Strong problem-solving and critical-thinking skills
• Excellent communication and collaboration skills
• Ability to work independently and as part of a team
• Knowledge of A/B testing and statistical analysis

Responsibilities: 

 

Data Collection and Integration:

Collaborate with data engineers and developers to ensure the proper collection and integration of user behavior data

Behavioral Analysis:

Utilize statistical and analytical techniques to analyze user behavior patterns and trends. Identify key performance indicators (KPIs) and metrics to measure user engagement and satisfaction.

Investigate and present findings related to user adoption, retention, and conversion rates.

Product Improvemenat:

Work closely with product managers and developers to identify opportunities for product improvements based on user behavior insights. Provide data-driven recommendations for new features, enhancements, and A/B tests.

Data Visualization:

Create clear and concise visualizations, dashboards, and reports to communicate findings to both technical and non-technical stakeholders.

Monitoring and Reporting:

Implement automated monitoring systems to track real-time user behavior and provide timely reports on key metrics.

User Segmentation:

Segment users based on their behavior and preferences to support targeted marketing and product personalization efforts.

Hypothesis Testing:

Develop and execute experiments to test hypotheses and validate the impact of changes on user behavior.

Technologies
 

- PowerBI,

- GA4, 

- mixpanel

- SQL

- bigquery/postgresql

Working conditions
-Work life balance and flexible working hours (start of the day from 9:00 to 11:00 and 8 working hours + 1-hour lunch)
-Payment of income in USD every 1 of the month
-Compensation of trainings / courses up to 100%
-English Classes (up to 80 USD/month after successfully completing the probation period)
-Sports activities compensation (up to 80 USD/month after successfully completing the probation period).
⁃Medical insurance (50% after successful completion of the probation period) or $200 a year for health care.
-Pizza Fridays/teambuilding/corporate lunches
-Development in a team of experienced and open-minded professionals who are open to suggestions for process improvement
 
Questions and Answers:
-Do you have an office that works in the absence of light?
Yes, of course! Our office is equipped with everything necessary, ensuring uninterrupted work, even during blackouts.
 
-Can I work remotely from another country?
Yes. We understand the importance of being safe.
 
-Do you cooperate with Russia and its citizens?
No. Our company was founded in 2014, and even then, we understood that Russia is an aggressor country, and we do not want to have any relations with it.
 
Hiring process:
- Screening call with our recruiter (1 hour)
- Technical interview with the Hiring manager (1-1.5 hours)
- Reference check
- Proposal for cooperation with Develux
 
Please note that feedback with results of the CV review will be provided only in the event of a decision to further consider your candidacy.
Otherwise, your data will be retained in the company's CV database, and we will gladly contact you if a suitable vacancy becomes available. The consideration period is 10 working days.