Jobs at Djinni

Remote Ruby on Rails Developer (Back-End Engineer)

Company: iKizmet (clubready.club)

Location: Remote (Must be available during USA working hours: 2pm–10pm / 12pm–8pm Kyiv time)

About Us:

iKizmet is a fast-growing analytics software company serving the health and fitness industry. We are integrated with the leading POS and Scheduling platforms and work with some of the biggest names in boutique fitness. Our mission is to deliver actionable insights through beautifully simple analytics.

Position Overview:

We are looking for a remote Back-End Engineer to help build and maintain features in our desktop and mobile software applications. This is a great opportunity to work with a passionate, fast-moving team that values clean, scalable code.

Key Responsibilities:

• Design, develop, and maintain scalable backend services and APIs.
• Implement new features, debug and resolve issues in the existing system.
• Collaborate with front-end developers and other engineers.
• Work independently with minimal supervision.
• Optimize queries and database performance for large datasets.

Requirements (Minimum 3 Years of Proficiency):

1. Ruby / Ruby on Rails – Proven experience building production-grade apps.
2. Strong SQL Skills – Advanced understanding of SQL and performance optimization. Experience with stored procedures, functions, and table partitioning in PostgreSQL.
3. RSpec – For writing and maintaining automated tests.
4. Background Jobs – Experience with DelayedJob or similar job queues.
5. Cloud Infrastructure – Familiarity with AWS services.
6. Caching/Key-Value Stores – Working knowledge of Redis (or Valkey).
7. Microservices Architecture – Experience with or understanding of service-oriented architecture.
8. Git – Confident with version control and working in remote repositories.
9. Terminal Use – Comfortable navigating and working in a command-line environment.
10. Bonus: Experience with Golang.
11. Bonus: Ability to implement simple UI with HTML, CSS (Sass), and JavaScript.

Work Hours:

This is a remote position, but you must be available during our operating hours in the USA time zone (2pm–10pm / 12pm–8pm Kyiv time).

Requirements: 
— Golang
—Apache Kafka
—NoSQL: Elastic, MongoDB,Redis
—А Bachelor’s Degree in Computer Science or a related field of study, or some other similar level of educational background, is preferred.

Responsibilities:
—Build scalable, highly available, robust systems and ensure their continuous delivery
—Work as part of a cluster and within a cross-functional team
—Take part in the whole feature development process — from the inception of ideas to deployment and maintenance
—We suggest submitting a small portfolio, or at least a code sample as proof of this experience
—Able to log time spent against the correct tickets and help maintain a strong degree of team efficiency.
—Prepare a development plan, defend it, code it, ship it, own it!

What we are looking for:

• Experience in Risk/Anti-fraud for at least 1 year (gambling);
• Understanding the specifics of work;
• Work experience with outgoing payments;
• Understanding of the KYC procedurement;
• Good analytical skills, attention to details;
• High level of responsibility and motivation;
• Willingness to work in shifts.
  
   

What you will do:

• Risk analysis, detection of suspicious and fraudulent activities;
• Processing users’ withdrawals;
• Full account check;
• Identifying and countering fraudulent schemes and patterns;
• Verification procedure;
• Communicating with users via emails. 
  
   

What we offer:

• Full remote work - an opportunity to work from any part of the world;
• Shift schedule 4/2, options to choose shifts (morning or night);
• Stable salary on the 10th day of the month;
• 20 working days for vacation and sick leaves;
• Career growth perspective;
• Friendly environment.
  
  Be a part of Zionix! we are really waiting for you!

Responsibilities:

• Participation in the full life cycle of embedded software: design, development, documentation, testing.
• Collaborate with cross-functional teams, including hardware engineers, firmware developers, backend developers, and QA engineers to deliver high-quality connected embedded solutions.

• Conduct code reviews, write technical documentation, and provide support to other team members.
   

  Requirements:

• Bachelor’s degree in Computer Science, Electrical Engineering, or a related field.
• 2+ years C/C++ programming language in embedded systems.
• Experience with STM32 microcontrollers (CUBE IDE, timers, interrupts, etc.).
• Understanding the operation of interfaces and protocols (UART, I2C, SPI, etc.).
• Experience in networks: TCP, UDP, MQTT, TLS will be an advantage.
• Experience with various sensors: IMU, current sensors, barometers, air speed sensor.
• Knowledge of networking protocols, file systems, and security concepts in embedded systems.
• Experience with version control systems (e.g., Git) and issue tracking tools (e.g., JIRA).

Advantages:

• Competitive salary
• Opportunities for career growth in a successful and innovative IT company
• Friendly and dynamic work environment
• Corporate English

Conditions:

• Full-time position

   

We're seeking experienced .NET engineers to join an innovative, international team transforming global ecommerce. This role involves working with advanced technologies such as .NET Core, Angular, Azure, and microservices in a collaborative,  
no-micromanagement environment. You’ll be pivotal in designing and building a state-of-the-art platform focused on automation and AI to enhance customer experience and operational efficiency. The position offers a flexible work environment, competitive compensation, and opportunities for professional growth.

Requirements:

• Minimum of 6 years of experience in software engineering teams, particularly within Agile environments.
• Proven excellence in .NET Core with C#.
• Proficiency in Microsoft stack and Azure services.
• Experience in building reliable distributed enterprise systems.
• High attention to detail and willingness to tackle complex technical challenges.
• Microsoft Azure/.NET certification is an advantage.
• Location: Spain 

Responsibilities:

• Working in an Agile environment, you will join a team of engineers working on greenfield products within ecommerce and fulfillment. The working model will be remote/hybrid with teams located in Ireland, Spain, and Eastern Europe.
• This is an opportunity to contribute to the design and build of our platform using the latest technology advancements and methodologies. As well as developing software, you will also contribute to designs and peer reviews and work with a Product Owner and QA to ensure we deliver secure, value-added software with quality engrained.
• A strong work ethic with a can-do attitude is expected, alongside a culture of friendly collaboration and teamwork. You will strive for continuous improvement and to be part of a high-performing team that delivers on its commitments.
• You will be experienced with the software development lifecycle and how it applies to CI/CD using Domain-Driven Design and Test-Driven Development techniques. You will have a keen interest in doing things the right way and for taking on new challenges.
• Proven experience in delivering .NET solutions & services that leverage Azure cloud services such as Cosmos, App Insights, Service Bus is a must-have.

 We offer:

- Professional development
- Competitive salary
- Equipment to work
- Accountant

Please note: Your location must be Spain  (with the possibility to attend office in Madrid )

Join Burny Games — a Ukrainian company that creates mobile puzzle games. Our mission is to create top-notch innovative games to challenge players' minds daily.

What makes us proud?

• In just two years, we've launched two successful mobile games worldwide: Playdoku and Colorwood Sort. We have paused some projects to focus on making our games better and helping our team improve.
• We've created a culture where we make decisions based on data, which helps us grow every month.
• We believe in keeping things simple, focusing on creativity, and always searching for new and effective solutions.
   

Some numbers

• 45M Total Downloads
• 5M MAU
• 14 countries is an employer area 
• 10 weeks in an average development time 
   

What are you working on?

• Genres: Puzzle, Casual
• Platforms: Mobile, iOS, Android, Social

Team size and structure?

100+ employees

Key Responsibilities:

• Monitor and interpret key product and business metrics, identifying trends, risks, and opportunities;
• Set up, launch, and evaluate A/B tests and other experiments;
• Perform deep-dive analyses on new features, game loops, player behavior, and monetization flows;
• Translate messy data and complex logic into clear, actionable dashboards and insights;
• Automate repetitive data processes, build alerting systems, and optimize existing workflows;
• Collaborate with Producers, devs, and other analysts to improve data collection, instrumentation, and event design;
• Own your work – we value initiative and give you space to implement bold, impactful ideas.

About You:

• At least 1 year of experience as an analyst in game dev industry;
• Understand mobile game KPIs and lifecycle stages;
• Fluent with tools like Amplitude, AppsFlyer, OneSignal, and know how to get the most out of them;
• Built dashboards and reporting systems in Power BI, Tableau, or similar — ones that actually get used by teams;
• You can write clean SQL, use Python comfortably, and work with common data/analytics libraries;
• Understand of A/B testing nuances, from design to interpretation;
• Detail-obsessed – the kind of person who notices when something’s off before anyone else;
• Able to tell a data story and present complex findings clearly to both tech and non-tech teammates.

Will Be a Plus:

• Experience building and optimizing ETL workflows (dbt/Dataform, Airflow, etc.);
• Applied machine learning for player segmentation, retention modeling, or monetization forecasting.

What we offer:

• 100% payment of vacations and sick leave [20 days vacation, 22 days sick leave], medical insurance.
• A team of the best professionals in the games industry.
• Flexible schedule [start of work from 8 to 11, 8 hours/day].
• L&D center with courses.
• Self-learning library, access to paid courses.
• Stable payments.
   

The recruitment process:

CV review → Interview with TA manager → Interview with Head of Analytics → Optional Test Task → Job offer

If you share our goals and values and are eager to join a team of dedicated professionals, we invite you to take the next step.

Join Our Team as a Backend Developer

We're on the cutting edge of AI-driven fintech software and are looking for an experienced Backend Developer to join our team. 

This role focuses on developing robust backend services using Python and FastAPI, managing server-side logic on AWS, and maintaining databases with AuroraDB.
 

Key Responsibilities:
- Develop and maintain scalable backend code.
- Manage server and database operations.
- Deploy and optimize cloud-based solutions.
 

Qualifications:
- At least 2 years of backend development experience.
- Proficiency in Python and familiarity with FastAPI.
- Experience with AWS ec2 and auroraDB
 

Location:
Remote position available for candidates from Eastern Europe.
 

Become a part of a dynamic team shaping the future of business financial planning!

Let’s start with what PLANEKS offers:

0. Fast and comfortable hiring process.

1. 100% remote work opportunity and flexitime - choose working hours between 8:00-20:00.

2. Manage your compensation $$$$ budget - Travel tickets, Work equipment, Health insurance, Software, Sport, Training.

3. Salary paid in USD + tax compensation. Revision every 12 months. We want everyone to be confident in what tomorrow brings.

4. Everything to provide a good rest. YES: Paid vacation, national holidays, sick leaves(and support in case of serious diseases). NO: overtime, work on weekends.

5. Regular feedback, mentorship, code review. Friendly and professional team that supports you. Well, we're proud of how we handle that. So you can always count on us.

6. Speaking clubs with a native speaker to constantly maintain your English level.

7. No bureaucracy - transparent processes and flat management. Working remotely means keeping things as simple as possible to work efficiently.

We propose something more significant than a job. PLANEKS means developing a new lifestyle for our colleagues and clients. So take your part in it!

This position supposes that you have the following knowledge and competencies:

1. Software development experience (at least 3 years) with:

• Python and Django.
• Other Python frameworks (e.g., Flask).
• PostgreSQL, MySQL.
• Celery, Redis, ElasticSearch.
• Cloud providers, DevOps, CI/CD.
• Unit, integration, E2E tests.

2. Knowledge of REST and experience working with REST APIs.

3. Experience with JS, HTML, CSS (Usually 0-20% of activity).

4. Communication skills in English (good writing and speaking).

You will deal and be responsible for:

1. Develop, support, and maintain projects in Python - usually, we create products from scratch but also have existing projects where the dev team should be extended. And also, we do not work with legacy codebases.
2. Solve technical challenges - all our projects are different, and you’ll never be bored with the same tasks every day, so your acquisitive mind will have great challenges regularly.
3. Take care of quality (code, test, business features, documentation) - everyone enjoys working with clean, readable code, so it is important to keep it such.
4. Participate in code reviews - usually, it is cross-reviews in the team or reviews by a senior person.
5. Communicate with internal and external teams - we’re in touch with great minds - inventive clients, and supportive colleagues!
6. Improve your technical and soft skills - just a normal evolution :)

About newage.

newage. is a leading  digital advertising agency in Ukraine, partnering with Google Marketing Platform, Google Ads, and Meta. We excel in running brand advertising campaigns using a data-driven approach. Our automated systems process terabytes of data daily to maximize the efficiency of our clients’ advertising efforts. We are looking for visionaries to join our team and help shape the future of digital advertising.

Company website: http://newage.agency

Company page on DOU: https://jobs.dou.ua/companies/newage/

Instagram: https://www.instagram.com/newage.digital.agency/

We are currently looking for a Project Management Officer who will provide mentoring to project managers at the C-level of the agency and teach them competent management.

Main Responsibilities:

• Coordination of priorities with CEO and CSD
• Lead teams, act as scrum master and work closely with product owners and stakeholders
• Manage a team of three Marketing Project Managers (3-4 PPC-specialists in each team)
• Detailing tasks/decomposition - maintaining a task manager
• Manage, plan and control scopes, budgets and timelines
• Effectively manage communications, build trust between all stakeholders; succeed in timely reporting and identifying risks
• Study stakeholder needs, research and propose alternative technical solutions to clients through internal and external consultations and technical research;
• Assign work tasks, manage workload and properly distribute work effort among project team members
• Motivate project team members, ensure productivity and promote team collaboration
• Ensuring timely completion of tasks and achievement of the goal
• Appointment and regular meetings with the PM team.
• Conducting 1:1 in order to determine the state of the team and possible points of development
• Organization and structuring of the workflow in the Google Drive-Worksection. 

Basic requirements:

• Fluent spoken and written English (Level C1 and above);
• At least 4 years of proven work experience as an IT project manager;
• Significant experience in people management, performance management and career development support;
• Excellent negotiation and problem-solving skills, proactivity and responsibility;
• Experience in managing medium and large projects;
• Ability to manage several projects simultaneously;
• It is nice to have experience in pre-sales activities and road map preparation (is an advantage);
• Experience in managing budgets;
• Ability to distribute work within and between project teams based on the nature and complexity of tasks;
• Strong oral and written communication skills, analytical and interpersonal communication skills;
• Customer service and related skills;
• Must have skills in using Google Drive tools, MS Project or other project management systems, Jira and others;
• Mentoring and coaching experience.

What conditions for cooperation do we offer:

• Competitive salary with fixed and KPI-based components.
• Trial period of 2-3 months.
• Flexible schedule: 9-10 AM to 6-7 PM, Monday to Friday.
• Hybrid work format: in-office presence twice a week or remote work.
• Office location: Kyiv, Shota Rustaveli St, 11.
• Comprehensive social package including corporate English lessons, tuition compensation, Mental Care support, and regular corporate events and team-building activities.
• Twice-yearly large team-building events (e.g., kayaking, tactical medicine classes, trips to the Carpathians). Monthly “small get-togethers” (e.g., ice skating, stand-up comedy).

We are eagerly awaiting for our new colleague and are excited to share our experience! 

ISTQB Manual QA Engineer

Job brief

We seek a web(and mobile) senior QA Engineer with experience in manual testing of ERP systems to work on our next generation of our ERP system. This position requires an ambitious individual with strong analytical skills.

Responsibilities

The team is responsible for designing and executing tests for client implementations for a big ERP system in the aviation industry.

• Work closely with R&D teams and other team members
• Can-do attitude and self-learning abilities – Mandatory
• Excellent written and verbal communication skills in English

• Familiarity with Windows environment, Azureת TFS

   

Requirements

• Academic Degree in  Computer Science or related (Math, Accounting, etc.)
• ISTQB certification
• Strong hands-on experience with QA methodologies + theoretical QA knowledge
• Experience with Postman, HTTP requests and the ability to analyze log files (a must)
• Experience with SQL
• Deep knowledge of Browser web tools 
• Strong analytical skills with Independent work capabilities
• disciplined and creative problem solver committed to driving quality forward
• Very good spoken and written English (a must)

Hi there, we are UX/UI-focused design agency. We help Startups to fundraise and Scaleups to grow with our design solutions.

We are looking for a talented and responsible teammate with a keen eye for detail and a good understanding of English. Probably with 1-2 years of experience.

What you can get by working with us:

- competitive compensation;

- friendly working environment;

- design mentorship;

- interesting projects;

- 100% remote work;

- fast skill growth.

What we expect from you:

- outstanding portfolio (matters more than CV for us);

- high level of attentiveness to details;

- proficiency in Figma;

- understanding of briefs in English;

- logical thinking;

- good chat GPT skills;

- Midjourney skills will be a high privilege.

What will you do:

- amazing landing pages and websites;

- thoughtful app design;

- we may ask you sometimes to support with graphic design tasks if you are good at it.

 

Looking forward to your applications!
 

We are looking for a passionate Product Owner with a vision to catapult our product onto the global stage.

As the Product Owner, you will play a pivotal role in championing the product's journey, from conception to worldwide recognition. Key responsibilities include curating the product backlog, shepherding features through the development lifecycle, orchestrating release strategies, and serving as a bridge between technical and non-technical departments.
 

The Product Owner is expected to:

• Participate in product backlog managing. 
• Manage features from the research phase to the release phase.
• Take part in planning releases.
• Handle incoming feature requests, define functionalities, and collaborate with the team for clarifications.
• Evaluate requested functionalities prior to Production release.
• Serve as a connection between technical and non-technical divisions.
• Aid other departments in delivering developed features to customers.
• Manage team priorities and workload.
• Facilitate team planning.
• Assume a leadership role within the development team.

• Coordinate internal resources for timely execution of backlog tasks.

   

Our ideal candidate should correspond to the following required competencies:

• At least 7 years of IT experience.
• Proficiency in web technologies and the development life cycle.
• Background in the Fintech sector.
• Strong written and verbal communication abilities.
• Upper Intermediate level of English proficiency or above.
• Outstanding teamwork capabilities.
• Demonstrated capacity to influence cross-functional teams without formal authority.
• Ability to excel in a fast-paced work environment.

Will be a plus:

• Experience in development BaaS solution or CBS or cryptocurrency exchange 
• Knowledges and/or experience in WEB 3.0
• Knowledges and/or experience in using AI in business

We are looking for a seasoned Full-Stack Engineer with a product mindset!

Ukraine and Poland | Full-Time | Remote

About the role

Our team is growing, and we are looking for a talented software engineer. You will work in small teams on various products. The Software Engineer plays a key role in the decision-making process about technologies and our core product as we bring new and innovative products to the market. You will use the latest technologies and frameworks, Node.js and Postgres on the server-side and React on the client-side.

What you’ll do

• Design of the overall architecture of the web application
• Lead the Front-end & BE effort to implement cool new features, services, and APIs
• Write reusable code and libraries
• Optimize the application for maximum speed and scalability
• Solve bugs (no one can hide from it)
• Cover functionality with tests and monitoring
• Work closely with managers, engineers
• Contribute in all phases of the development lifecycle to build first in class FE & BE solutions
• Bring fresh ideas to the team and suggest new technologies

Who you are

• 3+ years of experience as a full-stack engineer
• Strong proficiency with NodeJS, JavaScript, TypeScript
• Experience with React or similar frontend frameworks
• Experience with FE & BE performance optimizations
• Experience with Jest Testing Framework
• Experience with Postgres
• Knowledge and interest in microservice architecture and serverless
• Passionate about technology enjoys solving complex problems and learning new technologies
• Communication (are you sharing your thought process and asking questions where appropriate?)
• Teamwork (are you a team player putting the mission before self-interest?)
• Beauty and simplicity (of your code)
• Upper-intermediate or higher English level

Nice to have

• GraphQL
• Cloud experience (AWS)
• Manage infrastructure as code (Terraform, HashiCorp)

About us

Redocly specializes in API solutions, focusing on API design, documentation, and governance. They provide tools and services that help organizations create, manage, and optimize their APIs efficiently.

The mission is to accelerate API ubiquity. The primary way we do that is to improve our developer experiences. We’re a team of about 50 people. Mostly everyone focused on making the best products we can for our customers. We have a strong product-market fit. The products you work on are used by millions of people. We use Shape Up methodology.

Headquarter – Austin, Texas, US. We also have an office in Lviv.

https://redocly.com/  

Working at Redocly

Redocly is a fun, supportive, and high-performing environment. We celebrate the little victories, don’t take ourselves too seriously, all while focused and making progress on our mission. If you are looking for an interesting product and enjoy being challenged — this is the place for you!

• Tech stack: JS, TS, Node.js, Nest.js, React.js, Jest Testing Framework, Postgres, AWS, Terraform, HashiCorp
• Team: 5 people (middle-seniors)
• Team’s location: Ukraine&Europe
• There are functional, product, and platform teams and each has its own ownership, and line structure, and teams themselves decide when to have daily meetings. There are cycles of 6 weeks and teams can be mixed.
• Engineers are involved in all parts every two months to work on different things.

Perks

• Full remote
• Cooperation: Employment or Gig Contract
• After a year of working with the company, you can buy a certain number of company’s shares
• 30 days of vacation
• 10 working days of sick leave per year
• Public holidays according to Polish/Ukrainian law
• No trackers and screen recorders
• Working hours – Ukrainian/Polish timezone. Working day – 8 hours. Mostly they start working from 10-11 am
• Equipment provided – MacBooks (M2, M3)
• There are English-speaking clubs with a native speaker
• Performance review – approximately every six months

Hiring Stages

• Prescreening (30 min)
• HR Call (30 min)
• Coffee Time with Engineer (30 min)
• Trial Day (paid)  
• Offer Call

Interested? Let’s connect and discuss the details!

Who we’re looking for?

• 7+ years of experience in software engineering
• Strong backend skills: Node.js, NestJS (or similar), SQL, NoSQL
• Knowledge of design patterns, algorithms, and system architecture
• Excellent communication skills; collaborative, curious, and thoughtful
• Advanced English
  Will be a plus
• Experience working in a fintech product company
• Experience with cloud infrastructure (AWS), CI/CD, and Kubernetes
   

What you’ll be doing? 

You’ll join the Application team and contribute to delivering a best-in-class investment experience for our users. We work with modern technologies like TypeScript, Node.js, NestJS, React, RxJS, AWS, Kubernetes, MongoDB, and PostgreSQL.

You will:

• Lead backend feature development — from concept to release
• Own features end-to-end — from requirements to testing, deployment, and iteration
• Design scalable APIs and services that power our frontend
• Process large, complex datasets
• Identify and resolve performance bottlenecks
• Collaborate closely with product and design teams to deliver features that make an impact
   

What we offer

• Remote-first work culture with flexible hours
• Competitive salary with bonus potential
• Health insurance or monthly well-being allowance
• Extra vacation days for work-life balance
• Access to a modern coworking space in Kyiv (optional)
• Powerful equipment and everything you need to do your best work
• Direct user impact — your work will reach a global audience quickly
• Strong Team – Collaborate with smart, kind, and experienced teammates
• Fast Feedback Loops – We ship frequently and improve based on real user input
• Ownership & Growth – Contribute ideas, lead initiatives, and grow with the product
• Product-Driven Culture – Transparent, fast-moving, and focused on solving real problems
• Low Bureaucracy – We value autonomy, clarity, and action

We are looking for a Senior BI Developer to join our team. This role involves designing, developing, and maintaining BI solutions. Your primary goal will be to create robust BI solutions that enable accurate and insightful reporting for key stakeholders.

Your tasks

• Develop and maintain BI solutions using the MS Power BI stack, including dashboards, reports, and data models.
• Design and implement data pipelines, transforming manual processes into automated workflows for aggregating and analyzing warranty data
• Collaborate with cross-functional teams to understand data requirements and ensure accurate data mapping and integration
• Work with SSAS, SQL, OLAP, DAX, and tabular cube models, and assist in migrating and integrating these systems into modern BI solutions
• Monitor and improve data quality and performance of BI solutions to ensure timely and accurate delivery of insights

Requirements

• Proven experience as BI Developer, with strong expertise in MS Power BI and related tools
• Good conceptual and technical knowledge on MS tabular model
• Good SQL scripting skills
• Good on translating functional requirements to SQL codes 
• Experience in building and optimizing data pipelines and workflows
• Strong analytical skills with the ability to translate business requirements into technical solutions
• Good written and spoken English