Jobs

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.

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)

We are looking for a Senior Ruby on Rails Engineer to join a long-term project in the insurance domain. The role requires strong backend expertise, architectural mindset, and excellent communication skills.

Project details:

• Industry: Insurance
• Client: Established EU partner (5+ years of cooperation, 10+ active projects)
• Format: Remote, full-time (8h/day)
• Start: November 2025
• Duration: 6+ months (with possible extension)

• Process: 1 interview with our partners + 1–2 interviews with the end client

   

Requirements:

• 7+ years of backend development experience
• 4+ years with Ruby on Rails
• Strong understanding of backend architecture & HTTP protocols
• Excellent knowledge of relational databases (PostgreSQL preferred)
• Cloud experience (AWS) is a plus
• Strong English communication skills
• Must be EU-based

We offer:

• Long-term cooperation with a stable client
• Competitive rates (discussed individually)
• Remote-friendly environment with optional onsite visits if needed

📩 If you’re an experienced Ruby on Rails Engineer based in the EU and looking for a stable long-term role — feel free to apply!

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.

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.

🔥 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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