Jobs

Required skills:

👉At least 5 years experience with Shopify

👉 At least  upper-Intermediate English level

⚡️ experience with Shopify Plus will be a HUGE plus.

Key Responsibilities:

👉 Developing new features and websites

👉 Supporting existing solutions

👉 Migrating from various e-commerce platforms

👉 Debugging and bug fixes for operating businesses

👉 Take part in the development of our own tools and frameworks

👉 Project deployment and basic testing

We offer:

✅ Become a part of rapidly growing Ecommerce Agency

✅ NO russian clients, NO russian colleagues!

✅ Remote work

✅ Paid time-off

✅ Flexible schedule

✅ Ability for a constant financial and professional growth

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).

We expect you are

You’re ready to dive into different challenges and propose a solution. You’re a problem solver with great communication skills, who’re not afraid to take responsibility. You do really care about results and commitment. Bigger challenges — not a problem but an opportunity for you. What is more, you are always in touch with what happens around you so we expect a proactive approach.

Responsibilities

• Develop an internal billing system in cooperation with billing manager and a team.
• Cover the most important part of the system with automatic tests.
• In cooperation with Billing manager create a system of core metrics to monitor, setup its monitoring. Continuously monitor these metrics.
• Troubleshoot the billing system, investigate possible troubles with key metrics, make fixes.
• Implement new functionality based on the Billing managers roadmap.
• Continuously explore and implement best existing and emerging practices in the domain area which lead the system to better meet business goals.
• Make quick MVP and tests for validation of some uncertain hypothesis.
• Cooperate with billing clients engineering teams, educate them on billing usage, discuss existing and emerging needs, find the most effort/profit optimal solution to satisfy it.
• Troubleshoot clients issues related with usage of the billing system.

Requirements

• 5+ years in Software development.
• Commercial experience with Ruby (main) / GoLang / TS.
• Commercial experience with AWS.
• Solid experience with data analysis, monitoring key metrics & launching technical A/B test to improve business metrics that technical solution solves.
• Proven experience of work as a solo-team without supervision.
• Proven experience of creating a system architecture from scratch.
• Strong Computer Science fundamentals.
• Strong proven experience with Relational and NonSQL databases.
• Strong proven experience with RESTful API approach.
• Strong proven experience with CI/CD (gitlab).
• Familiar with Microservices.
• Experience with Docker.
• Strong understanding of why we should write tests and documentation.
• Experience with frontend.
• Basic understanding (or willingness to learn) how payment processing works for credit cards & digital wallets (Apple Pay, Google Pay).
• Basic understanding of data securing practises & building secure systems.
• English B2+.

Previous experience with the Finance domain will be a plus.

About the Project

A US-based small family business offers catering services to Californian schools. We have been acting as a technology partner for this company for almost 2 decades. The customer utilises a bespoke web-based platform to run their day-to-day operations (including meal ordering, fulfilment and delivery).

Required Skills

• minimum 4 years of experience;
  experience with RoR based web services;
• experience with integration with front-end frameworks (preferably React);
• experience with Java or C#/C++ stack is a huge plus;
• ability to methodically improve legacy systems, bringing them to perfection;
• ability to communicate with the clients directly;
• English level — Intermediate+ for verbal communication and correspondence with our clients.

Responsibilities

This is a perfect opportunity for a confident and independent thinker with strong expertise in the Ruby on Rails stack. Within this role the new member will be responsible for:

• dependencies and improving the overall architecture of the platform;
• analysis and technical decomposition of tasks;
• estimation and planning;
• new features implementation;
• collaboration and knowledge sharing with the team members.

What We Offer

• opportunities to work on diverse tasks, deepening your experience quickly;
• remote work with a high degree of involvement in teamwork;
• a contract-based employment (B2B);
• support from colleagues;
• technical support and assistance provided by our internal IT services department.

Expectations

We are looking for a strong middle or senior specialist to take the lead on this project. This is what is expected from the successful candidate on this position:

• a minimum of 1 year of commitment; 
• full-time work;
• synced schedule with a team;

participation in regular meetings: daily sync-ups, planning sessions, code review.
 

Recruitment Stages:

• Application registration via google form
• Technical quiz
• Technical interview
• Interview with PM of relevant project
• Offer

Join a Company That Invests in You

Seeking Alpha is the world’s leading community of engaged investors. We’re the go-to destination for investors looking for actionable stock market opinions, real-time market analysis, and unique financial insights. At the same time, we’re also dedicated to creating a workplace where our team thrives. We’re passionate about fostering a flexible, balanced environment with remote work options and an array of perks that make a real difference.

Here, your growth matters. We prioritize your development through ongoing learning and career advancement opportunities, helping you reach new milestones. Join Seeking Alpha to be part of a company that values your unique journey, supports your success, and champions both your personal well-being and professional goals.

What We’re Looking For

We are looking for a Senior Back-End Developer to join our R&D group. In this role, you will be responsible for building robust features and optimizing performance, ensuring that our paid users enjoy a seamless, reliable, and high-quality experience as they access exclusive content, advanced tools, and insights tailored to their needs. You will work closely with other developers, product managers and data teams to contribute to the ongoing development of our product, enhancing the value it delivers to our subscribers.

This role is 100% remote, offering flexibility to work from home.

What You'll Do:

• Develop API for modern, cross-platform responsible SPA from the ground up.
• Participate in product design and planning discussions, and contribute architectural ideas.
• Develop and test new user-facing features.
• Write highly scalable, reusable, and testable code.
• Optimize the application for maximum speed and performance.
• Collaborate with teammates and people from different departments to brainstorm, set targets, and devise solutions.

Requirements: 

• Experience in OOP and MVC design and development patterns. Good understanding of data structures and design patterns.
• 5+ years of back-end development experience in building large, complex, highly scalable web applications using the Ruby on Rails framework.
• Solid understanding of Ruby syntax, its nuances, and core concepts. Ability to write clean and readable code.
• Experience building APIs, including authentication, cleanliness, and role-based access permissions.
• Experience with SQL and NoSQL database technologies (e.g. MySQL, ElasticSearch, CouchBase, Redis, etc.).
• Comfortable with source version control software (Git).
• Knowledge and understanding of server-side architecture best practices.
• Deep understanding of the HTTP protocol and networking.]
• Problem solver: Have the ability to break down complex requirements into actionable tasks.
• Impact-driven, user and business oriented.
• Strong sense of responsibility, ownership, and a mindset of “get things done”.

We are inviting you, a highly motivated and results-oriented Ruby Engineer to join our team for ensuring solutions, as well as strengthening the product.
Our team has unique expertise in research, analysis, and product development. By relying on technical insights and a data-driven approach, we create disruptive future-defining innovations of the fin-tech industry that remain our basis for success.

Responsibilities

• Developing new features mostly for the backend part
• Integrations with payment systems, developing anti-money laundering module
• Development of AI tool for Customer Support, evolve Customer Acquisition flow
• Development of API for integration with trading platform
• Optimization, and improvement of the product
• Taking part in technical architecture and design
• Performing code review, production support
• Participating in Scrum and OKR retrospectives and planning to provide feedback and synchronize on new development within the team

• Writing unit/integration tests and docs for implemented functionality

   

Requirements

• 4+ years of Ruby development experience
• Strong knowledge of design patterns, basic algorithms, and data structures
• Experience with design scalable web applications
• Experience with Ruby on Rails 6+
• Expertise in working with databases (MySQL, Postgres, Redis)

• Skills in writing unit/integration tests

   

Will be a plus

• Experience in fintech
• Experience with service architecture and RabbitMQ
• Experience with GraphQL
• Experience with HTML/CSS, JavaScript

• Experience in integration with third party payment providers

   

We offer

• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has a position for Full stack Ruby on Rails developer.

Requirements:

• 3+ years of experience with Ruby on Rails;

• Experience with TypeScript for Frontend and Backend;

• Express Next or Angular;

• Knowledge of OOP, AWS, Git, available to use SHH connections, understanding of Docker or Vagrant concept;

• Upper-Intermediate level of English;

• 5-6 hours of overlap with Chicago time zone.

Responsibilities:

• Write and maintain efficient, reusable, clean, and tested code;

What the company offers:

• Constant and interesting work with foreign clients;

• Flexible working hours;

• Annual paid 30 days vacation and 10 paid sick day;

• Medical insurance policy;

• 50% cost compensation of sports and English lessons.

We are looking for a Strong Middle Ruby Developer to join the development of a product that truly helps people and businesses save energy and money. You will work in a startup environment with high autonomy and the opportunity to influence the product.

Requirements

 • Experience with Ruby on Rails - 3-5 years of experience

 • Python skills for data processing and integration

 • Interest in data visualization (Grafana / Kibana / Metabase)

 • Self-motivated, product-oriented

 • Upper intermediate English

Will be a plus
• Experience with Hotwire is a plus

Key Responsibilities

 • Develop web applications on Ruby on Rails - infrastructure development, new features, testing.

 • Process and integrate data using Python / FastAPI - integration, cleaning, automation) Backend interfacing with a versioned Python microservice (FastAPI).

 • Create and configure Grafana dashboards - view creation, alerting, indicators.

 • Document code, implement CI/CD, participate in code reviews and QA 

 • Mobile development using Hotwire for iOS and Android

Project Description

An innovative startup in the field of smart energy management. The platform enables users and businesses to reduce peak electricity consumption and earn financial rewards. Technically, the project includes a web platform on Ruby on Rails, microservices on Python / FastAPI, and mobile applications via Hotwire.

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has a position for Full stack Ruby on Rails developer.

Requirements:

• 3+ years of experience with Ruby on Rails;

• Experience with TypeScript for Frontend and Backend;

• Express Next or Angular;

• Knowledge of OOP, AWS, Git, available to use SHH connections, understanding of Docker or Vagrant concept;

• Upper-Intermediate level of English;

• 5-6 hours of overlap with Chicago time zone.

Responsibilities:

• Write and maintain efficient, reusable, clean, and tested code;

What the company offers:

• Constant and interesting work with foreign clients;

• Flexible working hours;

• Annual paid 30 days vacation and 10 paid sick day;

• Medical insurance policy;

• 50% cost compensation of sports and English lessons.

We are looking for a Full-Stack Ruby on Rails and Vue.js Developer, with a strong focus on backend development, to join our distributed team building a platform designed to help organizations use digital tools to implement ambitious work at scale.

It’s a clean, modern set of tools designed from the ground up to help organizations build authentic relationships, save time, and create positive social change.

Our technology stack includes Ruby on Rails, Vue.js, TypeScript, and Postgres, deployed on AWS. We are passionate about software development as a craft and follow best practices, including continuous delivery, acceptance testing, monitoring, and code review.

You can work from anywhere in the world, as long as your working hours partially overlap with U.S. East Coast business hours.

Requirements

• 3+ years of experience building ambitious web applications
• Strong experience with Ruby on Rails
• Solid experience with Vue.js
• Knowledge of TypeScript
• Familiarity with React (would be a plus)
• Experience working in distributed teams
• Passion for positive and progressive social change
• Familiarity with how organizations and campaigns use the internet to drive engagement
• Experience with:
  • AI/ML techniques (optional)
  • Column-oriented databases or large-scale data integration (optional)

Responsibilities

• Work closely with the Co-founder and CTO to deliver new product features
• Participate in planning and shaping the product vision
• Develop backend services and integrate frontend functionality
• Take part in code reviews, technical discussions, and architecture decisions

What We Offer

• Fully remote role with flexible working hours
• Long-term project with a stable roadmap and modern stack
• Supportive and open-minded team
• Hardware and equipment are provided when needed
• Access to Udemy with 1,000+ learning courses

💡 Note: Working hours should overlap with the US East Coast business hours for effective communication.

Cropwise Operations is a global leader in digital agritech solutions, operating in over 50 countries and helping optimize business processes and improve the efficiency of agronomic decision-making.  

We are looking for a skilled Ruby on Rails Developer to join our team.

What we expect from a candidate:

- Preferably 3+ years of Ruby on Rails development experience.

- Strong knowledge of Rails.

- Experience with testing frameworks like RSpec and Capybara.

- Testing with RSpec/Capybara.

- Basic knowledge of ES6 + React.js.

- Experience with JavaScript.

- Standard Rails application deployment stack (Git, CI, Capistrano, *nix).

- Knowledge of HTML/CSS.

What exactly will you need to work with:

- Backend on Ruby on Rails 7.0 (Ruby 3.2).

- PostgreSQL + PostGIS database (handling large geospatial datasets).

- Job processing with Resque + Redis.

- Testing on RSpec + Capybara + CI.

- Partially frontend on React.js (ES6, JSX).

What else can you work with?

- Algorithms for processing large amounts of geodata.

- Reception and processing of binary data (Ruby eventmachine).

- Working with RabbitMQ.

- AWS, Google Cloud, Kubernetes.

- Visualization and work with geodata on the frontend (Mapbox GL JS).

Hiring process:

- Intro call;

- Test Task;

- Final Interview;

- Offer.

The company offers:

- Opportunity to be a part of a best-in-class product that is used by thousands of companies around the world.

- Participation in complex technical tasks and challenges.

- Environment where you need to seek and implement unique engineering and technical solutions.

- Trainings and development programs.

- Flexible work formats: remote, office or hybrid.

- Health and life insurance for employees and your family members.

- 32 working days of paid annual leave and sick leave.

About Cropwise Operations

Cropwise Operations is a SaaS platform for farmers, leveraging cutting-edge technologies such as computer vision, big data, and AI to deliver actionable insights and improve agricultural outcomes.

For seekers, cooperation with Cropwise Operations is an opportunity to be part of a best-in-class product used by hundreds of companies around the world, and to deal with complex technical tasks in the field of neural networks and machine learning with the need to constantly improve their knowledge and skills, to find and implement unique engineering and technical solutions.

We’re looking for a Senior Back-end Developer to design and implement reliable, scalable, high-performance systems and collaborate closely with our engineering teams to deliver robust solutions that drive real impact.

At the heart of what we do is a simple mission: to deliver an asymmetric advantage to our AdTech Сustomers through deep expertise, simplicity, and exceptional service. We challenge ourselves to grow – as technologists, professionals, and teammates who support one another every step of the way.

Our culture is built on dedication, trust, and continuous improvement. We celebrate success together, learn from our failures, and take pride in delivering outstanding results for our clients.

If this sounds like the kind of environment where you’d thrive – join us and help build what’s next.

    Customer

Our Customer provides a novel approach to office meals. Through their platform, customers get automated and organized lunches, serving individual and customizable meals to offices from restaurants. They offer their customers a competitive advantage through their extensive industry knowledge, straightforward process, and a high level of service.

The Customer is extremely open to the team’s professional opinion, so you will have a chance to initiate changes and improve the existing solution.

     Requirements

• Experience with Ruby on Rails (Back-end)
• 5+ years of solid software engineering experience
• Experience designing and implementing scalable, cloud-based architectures for production-grade Back-end (preferably, have experience with AWS, EC2 load balancing, auto-scaling, CloudWatch, and Aurora)
• Experience with database engineering, including SQL/GraphQL with million-size relational records (preferably, the ability to write and optimize PostgreSQL and GraphQL)
• Ability to design relational schemas appropriate for given use cases
• In-depth understanding of the fundamentals of web technologies, data structures, and algorithms

• Upper-Intermediate level of English

   

     Will be a plus:

• Strong development skills in languages such as JavaScript, Ruby, and Python, preferably with a solid background in modern web stacks)

• Experience operating relational databases at scale

  
  Personal Profile

• Great communication skills, including written and verbal communication
• Strong time management and prioritization skills, with the ability to work independently
• Demonstrated sense of ownership and accountability in delivering high-quality results

     Responsibilities

• Design and implement solid, scalable, and flexible Back-end systems
• Collaborate with Front-end engineers and QAs to deliver new features together with team members on the client side
• Maintain a healthy Back-end services and a high level of quality
• Design and implement unit tests and highly maintainable code
• Generate great new ideas for features and better ways to implement existing ones
• Take an active part in team meetings and ceremonies

We are a small outsourcing company looking for a Junior developer with some experience in RoR and Ruby. Experience with scraping will be a big plus.

Conditions:

• Full-time, flexible schedule possible.
• Starting salary: 200–300 USD (details will be discussed during the interview).

What we expect:

• Willingness to work under our conditions, learn, and gain real experience on live projects.
• Openness to work with different products, not just within one domain.
• Attention to detail.
• Conversational English (B1 level) — not a strict requirement.

Restrictions:

• This position is intended for beginners.
• We use a time-tracking system, and this is a prerequisite for cooperation.
• Please apply only if you are ready to work and learn under our conditions, not to negotiate alternatives.
• Do not apply just to get information about salaries or conditions — we only work with genuinely interested candidates. During the interview, we are happy to answer all reasonable questions, but we will not engage in long correspondence with detailed explanations of conditions.
• Recruitment agencies and intermediaries — please do not contact us.
• If there are many applications, we cannot guarantee a response to all of them.

About the Role

We’re looking for an experienced Senior Back-End Engineer (Ruby on Rails) who combines deep technical skill with strong product awareness and collaboration. You’ll work on complex, business-critical applications in healthcare, fintech, logistics, and intelligent infrastructure domains — architecting APIs, shaping data models, and helping teams deliver robust, high-performance systems.

You’ll be joining small, empowered, cross-functional teams that include Product Managers, Designers, QA, Front-End, and DevOps engineers. This isn’t a staff-augmentation role — our engineers are trusted collaborators who co-own architecture, technical quality, and delivery outcomes.
 

Why Altus Nova is Different

At Altus Nova, engineers aren’t just implementers. They are product-minded problem solvers who ask great questions, care about maintainability, and value iteration over perfection.
Our work is guided by a few simple principles:

• Product-Minded Engineering — Understanding business goals makes better code.
• Iterative Delivery — We deliver in meaningful increments, not monoliths.
• Research Spikes — When something is unclear, we experiment before committing.
• Every Voice Counts — We debate vigorously, then execute together.
• Shared Responsibility for Production — Reliability and supportability are everyone’s concern.
   

What You’ll Do

• Design, build, and maintain scalable back-end systems using Ruby on Rails (with potential services in Node, Go, or Python where relevant).
• Build and document APIs consumed by internal and external applications.
• Improve performance, scalability, and reliability of core services.
• Collaborate with product managers and front-end engineers to translate requirements into deliverable technical designs.
• Review pull requests, mentor teammates, and help shape coding standards.
• Contribute to CI/CD pipelines, monitoring, and alerting (in collaboration with DevOps).
• Participate in design discussions, retrospectives, and release planning.
• Continuously improve our architecture — from database design to caching and background jobs.
   

What We’re Looking For

• 5+ years of professional development experience (at least 3 with Ruby on Rails).
• Strong grasp of Object-Oriented Design, SOLID principles, and service-oriented architecture.
• Experience designing and optimizing RESTful or GraphQL APIs.
• Deep understanding of SQL (PostgreSQL preferred), indexing, and query optimization.
• Familiarity with Sidekiq/Resque, Redis, background jobs, and message queues.
• Experience with cloud-native environments (AWS or GCP) and CI/CD pipelines.
• Experience with RSpec, Minitest, or similar frameworks.
• Familiarity with Docker, Kubernetes, or container-based environments.
• Strong communication skills — able to explain trade-offs and simplify complexity.

A mindset of continuous learning and collaborative problem solving.
 

Why You’ll Love Working Here

• Work with top-tier product teams that expect your input, not just your output.
• Build modern, high-scale systems with a strong emphasis on maintainability and observability.
• Collaborate with highly skilled peers across multiple disciplines.
• 100% remote — flexible hours and a culture of accountability, not micromanagement.
   

Opportunity to move into Tech Lead or Solution Architect roles as you grow.

🔥 Знаходимось у пошуках Ruby on Rails Developer у продуктову eCommerce-компанію з історією понад 19 років на ринку, яка входить до великого технологічного холдингу з офісами в Казахстані та Азербайджані.

🔎🏢 Основна спеціалізація - великі онлайн-маркетплейси в категоріях Real Estate, Automotive, Job Portals та General Classifieds (універсальні платформи для приватних оголошень). За концепцією продукти нагадують OLX, Auto.ria та Work.ua. Загальна аудиторія - мільйони користувачів щодня. Команда інженерів - 30+ осіб. Технічна культура - інженерна, із високими вимогами до якості коду та глибини розуміння стеку.

⚙️ Технологічний стек проєктів:
• Backend: Ruby, RoR (завжди остання версія), Redis, Elasticsearch, PostgreSQL, GraphQL;
• Frontend: React, React Native, Next.js;
• Хмарні платформи: AWS, GCP.

📜 Основні завдання:
• Розробка та підтримка платіжних інтеграцій з локальними та міжнародними провайдерами;
• Оптимізація продуктивності та масштабування існуючих рішень;
• Розв’язання нетривіальних задач на стику бізнес-логіки й технологій;
• Робота в тісній зв’язці з архітекторами, продуктовими командами та фронтендом;
• Дотримання принципів інженерного мислення: відповідальність за результат, а не лише за реалізацію.

✅ Очікування від кандидата:
• Досвід розробки на Ruby on Rails - від 7 років;
• Розуміння принципів побудови високонавантажених систем;
• Участь у розробці складних проєктів, бажано - у проектуванні архітектурних рішень;
• Досвід роботи з GraphQL - буде перевагою;
• Англійська на рівні читання технічної документації.

🧪 Процес відбору:
• Технічне інтерв’ю з архітектором компанії (формат live-coding, до 2 годин);
• Зустріч з Engineering Director;
• Офер.

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