Jobs Fullstack

Mirko Solutions is an international IT company specializing in web and mobile development for clients in the US, Canada, EU, and Australia. We deliver high-quality digital solutions including web applications, mobile apps, cloud systems, and custom software for businesses worldwide.

Due to the rapid growth of our company, we are currently looking for an experienced Middle Fullstack Developer (Node.js + React) to join our team and work on a new international project in our Tallinn office.

Responsibilities:

• Develop and maintain scalable backend and frontend functionality
• Build and integrate REST APIs and third-party services
• Develop backend services using Node.js
• Build and maintain frontend applications using React
• Work with databases and complex business logic
• Investigate and fix production and integration-related issues
  Participate in code reviews and technical discussions
• Collaborate with QA, Team Leads, and other developers during feature delivery

Requirements:

• 3+ years of commercial software development experience
• Strong hands-on experience with Node.js
• Solid experience with React
• Good knowledge of TypeScript
• Experience designing and integrating REST APIs
• Experience with SQL and relational databases
• Experience with Git and Docker
• Understanding of CI/CD practices
• Good understanding of software development principles and best practices
• Good command of English
• Ability to work from our Tallinn office

We offer:

• Opportunity to work on an international project
• Professional growth and development
• Friendly and supportive team environment
• Collaboration with experienced international teams

Creatio is an AI CRM and workflow platform where people and AI agents work together — with no limits on users,  agents, or scale. We help midsize and large organizations run customer workflows in the AI era. Headquartered in  Boston, MA, with a global team and a large ecosystem of partners, Creatio serves thousands of customers in over 100  countries and automates tens of millions of workflows daily. Genuine care for our clients and partners is at the heart of our DNA. 

We’re proud to be recognized by top industry analysts as a Leader and Strong Performer in multiple Gartner and Forrester reports. 

In 2025, Creatio was named to Inc.’s Best Workplaces list, recognizing our commitment to employee wellbeing and a strong workplace culture.

Who We’re Looking For:

We are looking for a Full Stack Developer with .NET and Angular experience to join our Engineering Department for collaborating within Scrum teams across our Services, Sales or Marketing Domains.

You should be a strong team player with excellent communication skills, eager to learn and grow, and ready to make an impact from day one. Most importantly, we’re looking for individuals who share our values, believe in collaboration, and want to be part of a workplace where creativity, accountability, and ambition are celebrated

Team composition: 

3 Developers, 1 QA, 1 Technical Lead, 1 Agile Coach, 1 Product Owner

Responsibilities:

• Designing, coding, testing, and debugging back-end and front-end code.
• Collaborating with product owners, business analysts, architects, customer support team.
• Creating web services, Angular components, Creatio configuration, unit, integration, E2E tests.
• Participation in product goal implementation and scrum activities.
• Providing support for resolving customer cases and ensuring faultless Creatio operation. 

Requirements:

• 5+ years of overall programming experience, strongly focusing on .NET and Angular.
• Strong knowledge of object-oriented programming, KISS, SOLID, DRY principles.
• Confident knowledge of C# language and modern .NET platform (.NET6+).
• ASP.NET MVC, ASP.NET Core, experience with the development of Web APIs.
• Up-to-date Angular 15+ experience. You must know how to develop new and optimize existing components. Be able to work in a mono-repository and use RXJS library and pipeline operators.
• Hands-on experience with JavaScript, TypeScript languages, DOM, CSS/SASS. You must be able to style a page or component according to the given UI prototype.
• Source control systems like Git, SVN, experience with branch, merge, rebase.
• Unit testing, mocking, NUnit, Mock, Postman.
• English level - Upper–Intermediate or higher (spoken and business writing).

• Experience working with databases (MS SQL Server, PostgreSQL or Oracle) is a plus.

   

What you should expect from us:

• Growth & Development: Clear career paths, mentorship opportunities, and access to continuous learning to help you reach your full potential.
• Flexibility & Well-Being: We provide flexible work arrangements and initiatives that empower you to manage your schedule effectively, stay productive, and thrive both personally and professionally.
• Recognition & Impact: A culture that celebrates achievements, values your ideas, and empowers you to make real contributions from day one.
• Innovative Culture: Be part of a company that embraces new ideas, modern technologies, and bold thinking to stay ahead of the curve.
• Benefits & Rewards Package: We provide competitive compensation and benefits designed to support you and your family. Our rewards approach goes beyond salary, recognizing your contributions and commitment. The exact package may vary depending on your country of residence and employment type.

Olive Systems is looking for strong Forward Deployed Engineers to work on complex technology projects for US-based clients.

This role is for experienced, hands-on engineers who can take an ambiguous customer problem, figure out what needs to be built, and turn it into a working production solution.

We care much more about your engineering ability, ownership, and problem-solving skills than about a specific technology stack.

What you’ll do

As a Forward Deployed Engineer, you’ll work at the intersection of engineering, product, and the customer.

You’ll take ownership of problems that often don’t come with a complete technical specification and help determine what should be built, how it should work, and how to get it into production.

You’ll:

* Work directly with US-based customers to understand technical and business problems

* Turn ambiguous requirements into practical technical solutions

* Build prototypes quickly and take successful solutions into production

* Work across backend, frontend, APIs, infrastructure, data, and AI systems

* Make architecture and technical decisions with a high degree of autonomy

* Integrate solutions with existing customer systems

* Troubleshoot complex production and integration issues

* Work closely with engineers, product teams, and customer stakeholders

* Use modern AI coding tools and agents extensively as part of your development workflow

Who we’re looking for

We’re looking for strong engineers rather than specialists in one particular framework or stack.

You may currently be a:

* Senior / Staff Software Engineer

* Senior / Staff Full-Stack Engineer

* Technical Lead

* Hands-on Software Architect

* Founding Engineer

* Forward Deployed Engineer

* AI / Applied AI Engineer

You should be highly proficient in at least one of the following:

* Java

* JavaScript / TypeScript

* Python

* Go

But your primary programming language isn’t particularly important.

We’re looking for engineers who understand software deeply enough to move between technologies, learn unfamiliar systems quickly, and use AI coding tools and agents effectively to build production software.

What matters most

* Strong software engineering fundamentals

* Significant hands-on development experience

* Proven experience building and shipping production systems

* Ability to understand unfamiliar codebases and technologies quickly

* Strong system design and architecture skills

* Ability to solve problems without detailed specifications

* High level of ownership and independence

* Comfortable making technical decisions and explaining the trade-offs behind them

* Experience working directly with customers or business stakeholders

* Strong English communication skills

* Comfortable using AI coding tools and agents as a core part of your engineering workflow

* Ability to maintain meaningful overlap with US East Coast working hours

Experience building AI-powered products, LLM applications, agents, RAG systems, data platforms, or cloud-native systems is highly relevant, but not mandatory.

Location & Work Setup

Fully remote — Ukraine / Europe

The projects are primarily for customers on the US East Coast, so sufficient overlap with Eastern Time is required.

You’ll work in an international engineering environment on complex customer-facing projects where engineers are expected to understand the problem, make decisions, and own the solution from idea to production.

About Olive Systems

Olive Systems works with international technology companies to build and extend high-performing engineering teams.

We’re looking for engineers who don’t define themselves by a single programming language or framework. We want people who can understand difficult problems, learn quickly, use modern AI development tools effectively, and ship.

Job Summary
As a Software Engineer, you will work directly with AI coding models to identify weaknesses, debug incorrect outputs, and create stronger alternative solutions. Your main responsibility will be to evaluate AI-generated solutions, identify mistakes, uncover reasoning gaps.

Key Responsibilities

• Work with Frontier Labs, producing training data to train Al models. 
• Test and evaluate agentic coding models designed to perform complex engineering tasks at a senior developer level.
• Compare AI-generated solutions against senior engineering standards and best practices.

Requirements

• 3–4 years of hands-on experience as a Full Stack Developer on commercial projects, including B2B SaaS systems and data-heavy applications.
• Use AI tools (AI agents, Claude Code, Cursor, Codex or similar) in daily workflow.  
• Strong judgment across the full software lifecycle:
  • Reading a PRD and breaking it into Jira tickets
  • Estimating effort and scoping work
  • Architecture and design choices
  • Reviewing PRs
  • Debugging and recovering when blocked
• Strong proficiency with React.js and Node.js, with experience using Express.js or NestJS to build scalable backend systems that support complex business logic.
• Experience designing and integrating REST APIs. 

• Upper-Intermediate English (B2). 

   

Bonus:

• Computer Science or related education. 
• Python programming experience. 
• Strong understanding of algorithms and data structures. 

You will be part of building better AI systems by helping improve the quality, accuracy, and reliability of the answers they provide. If you want to use your engineering skills in a fast-growing AI field, this role is a strong opportunity to contribute to the future of AI-assisted development.

About the Company
Sales'Up is a leading Creatio implementation partner, helping enterprise clients across FMCG, Agro, Finance and Pharma transform their business processes. Over 8+ years, we've delivered 100+ successful CRM projects and built our own industry-specific products: Data Management, FMCG Management, and Agro Management — used by market leaders.

Role
We are looking for a Creatio Developer with hands-on platform experience to build and enhance CRM solutions for clients across different industries and countries. You'll work directly with the Creatio platform's architecture, configuring business logic, developing custom modules, and shaping solutions that go live on real international projects.

Main Responsibilities:

• Developing and enhancing solutions on the Creatio CRM platform (formerly bpm'online)
• Configuring business logic, data objects, interfaces, and business processes
• Developing custom modules, UI components, and integrations
• Optimizing solution performance and writing efficient SQL queries
• Participating in the design of Creatio application and module architecture
• Supporting existing solutions and resolving incidents
• Working within a development team using Git and CI/CD practices

Requirements:

• 1+ year of hands-on experience with Creatio
• Commercial development experience with C# / .NET (ASP.NET, Web API, WCF)
• Confident knowledge of JavaScript (Angular, jQuery, Backbone.js, Ext JS, RequireJS)
• Experience with SQL (PostgreSQL, MS SQL)
• Understanding of Creatio platform architecture and internals (Schemas, Packages, Configuration, Data Binding, Process Designer)
• Layout skills (HTML5, CSS3)
• Knowledge of SOLID, DRY, KISS principles
• Ability to work with Git
• English level – B2

Nice to Have:

• Experience integrating Creatio with external systems (REST, SOAP, WCF)
• Experience with Creatio Mobile
• Understanding of message brokers (RabbitMQ, Kafka)
• Experience developing custom UI modules (Ext.js / Angular)
• Experience with CI/CD (Jenkins, Azure DevOps, etc.)
• Agile/Scrum experience

We Offer:

• Involvement in international Creatio projects
• Professional growth and certification opportunities
• Remote/hybrid work options
• A team of professionals in a friendly atmosphere

About us

We build AI that runs a restaurant’s delivery business.

Most restaurants now make a serious part of their money through delivery platforms, and almost nobody is really managing that side of things. Menus drift out of date, stores sit closed while the kitchen is open, and problems surface a week later in a report, if they surface at all. Our product watches all of it, works out what is costing the restaurant money, and tells the owner what to do about it. More and more, it just does it.

Real customers run their business on this every day. It keeps us honest: when we get something wrong, somebody feels it the same evening.

Small team, everyone owns what they build. Remote first. Our own product, built for the long term, no client work.

What you’ll do

• Build product features end to end: React on the front, Node on the back, all the way into production.
• Turn vague asks into decisions. Clarify the problem, cut the scope, pick the fix.
• Write the tech design for what you build.
• Work with delivery platform integrations and their APIs.
• Deploy and run your own services on GCP.

• Direct agents. Claude Code, Codex and Cursor do the typing. You do the thinking, the review and the verification.

   

What we expect

• 3+ years of commercial fullstack work: React, Node.js and PostgreSQL in production.
• You already work AI first. This is not something we will train you into. We need a year or more of daily, hands on work with Claude Code, Codex, Cursor or similar. You set the context, you review every line, you own the result.
• You have shipped things real users depend on, and you were around when they broke.
• Production experience in the cloud, GCP preferred, and enough DevOps to deploy and debug what you build.
• You can get from a business problem to a product decision instead of implementing the ticket literally.

• English B2+ and clear writing. Most of our decisions happen in text.

   

What matters more than years on a CV

• You finish things. Given a task with rough edges, you close the gaps and deliver, instead of handing it back with questions attached.
• You ask early and precisely. A question at hour two costs five minutes. The same question on day four costs a day.
• You know when to push back and when to commit. If something is genuinely wrong, say so clearly, once. Then we decide and you run with it.

• You automate your own work. If you have done something by hand more than twice, we expect you to automate it rather than get faster at it.

   

Nice to have

• GraphQL in production
• Terraform or another infrastructure as code tool
• Food tech, delivery or POS
• Your own agents, MCP servers or dev automations

• React Native

   

How we work

Small team, very little process, short loops. Two week sprints. Agentic engineering is the standard here rather than an experiment, which makes sense given what we build.

Engineers sit close to the product. You will talk to support sometimes, and you take your own features through QA and release yourself. Reliability matters more than speed on anything that touches orders, and you own what you ship.

You will get through more work here in a quarter than in a year at most places. Nothing waits on a committee, and the agents handle the typing, so the hard part of the day is judgment rather than boilerplate.

Remote first.

Good fit if you want real ownership, fast feedback, and visible impact on something people use to run their business every day.

Hard fit if you want a narrow scope, a calm pace, or a lot of process between you and production.

This is a fantastic opportunity to join a fast-growing company at the heart of the digital revolution. Our software product is revolutionising manufacturing through automation. We are trusted by global brands and work across sectors (mobility, consumer goods, machinery etc).

We have a talented and ambitious team. We value integrity and are passionate about our mission to revolutionise advanced manufacturing.

This is your opportunity to:

• Be part of a fast-growing software product company in advanced manufacturing.
• Learn and fulfil your potential in an open, knowledge-driven culture.
• Share in our ambitious vision and make a meaningful difference towards autonomous manufacturing.

Responsibilities: 

• Development of new features and new parts of the app.
• Work in a cross-functional Scrum team alongside Frontend and QA Engineers.
• Maintaining, improving and extending existing functionality.
• Сonstantly improving code organization and evolving application design.

You will be joining a well-versed team if you have:

• Bachelor’s Degree or Master’s Degree in Computer Science.
• Minimum of three years of experience in Node.JS development.
• Minimum of two years of experience in React.JS development.
• Experience with Sequelize, PostgreSQL, database design, microservices.
• Test automation coverage.
• Understanding of CI/CD.
• Git branching strategies.
• Scrum Agile principles and processes.
• English level - Intermediate and higher.

 Nice to have:

• AI-minded engineering mindset – ability to creatively apply AI tools and approaches to accelerate development and problem-solving.
• Experience using Cursor or AI-powered development workflows.
• Passion for continuous learning and exploring emerging technologies.

Our tech stack: microservices, Node.JS, React.JS, PostgreSQL, Kubernetes, AWS.

About the Project

We are a product-driven company building a live commercial product with real users in a high-load environment.
The platform is actively growing — new features, scaling challenges, and architectural evolution.

We are looking for a Senior Python Full-Stack Engineer with strong backend and system design expertise who can take ownership of complex technical decisions and contribute to architectural evolution.

Responsibilities

• Design and implement scalable backend services
• Participate in architectural decisions
• Improve system performance and scalability
• Optimize database queries and indexing strategies
• Ensure data consistency across services
• Contribute to distributed system design decisions
• Review code and mentor engineers

• Work closely with product and engineering teams

   

Must-Have Requirements

• 6+ years of commercial software development
• Strong Python expertise (production-level experience)
• Deep experience with Django / FastAPI / Flask
• Strong knowledge of relational databases (PostgreSQL preferred)
• Experience designing scalable REST APIs
• Solid understanding of:
  • Database indexing strategies (B-tree, Hash, Composite)
  • Query optimization & profiling (EXPLAIN, performance tuning)
  • Transactions & data consistency
• Experience with microservices architecture
• Understanding of distributed systems concepts:
  • Data consistency
  • Event-driven communication
  • Replication strategies
• Experience with background processing (Celery, async workers)
• Docker & Git

• Production-level experience with cloud platforms (AWS preferred)

   

Strong Plus

• Experience with:

  • Distributed transactions (Saga pattern, eventual consistency)
  • Message brokers (Kafka / SQS / SNS / RabbitMQ)
  • High-load systems
  • Database scaling (replication, sharding, read replicas)
  • Observability tools (Datadog, Prometheus, Grafana)
  • CI/CD pipelines

  Frontend

• Experience with React (Next.js is a plus)
• Understanding of frontend-backend integration
• Ability to contribute to frontend architecture when needed
   

What We Offer

• Competitive compensation
• Fully remote
• Working hours: Mon–Fri 16:00–00:00 (UTC+X)
• Direct impact on architecture and product decisions
• Long-term collaboration
  
   

Loankea is a US mortgage lender. We build and run our own software: a workspace for our staff and a portal where borrowers apply and follow their case. Both are in production and used every day.

You would be the second engineer on this codebase, working directly with the person who built it, and you would carry a task from the issue to production yourself.

Besides the product itself, you would build internal tools and automations for the team, including AI agents for specific business processes.

We are looking for someone who is comfortable with both backend and frontend development, uses AI tools daily, and is accountable for every line they submit, whether they or an agent wrote it.

Requirements

• 1+ year of commercial development experience

• C# and .NET: async, LINQ, dependency injection

• React and TypeScript

• PostgreSQL or another relational database

• AI development tools such as Claude Code, Cursor, Codex or similar

• Comfortable working in an existing codebase and following the conventions already in place

• Writing tests and debugging

• English B1+

Main Stack

• Backend: C#, .NET 10, GraphQL (HotChocolate), EF Core, PostgreSQL, Azure

• Frontend: TypeScript, React 19, Apollo Client, Vite, Tailwind CSS, Radix UI

• Testing: xUnit, Vitest, Testing Library, Testcontainers

• Tools: Git, GitHub Actions, Docker

• AI: Claude Code

GraphQL is a plus, not a requirement. It runs through the whole stack here, and if you have not used it, we will teach you.

Remote | Full-time | Europe-friendly working hours
 

Haven is helping Applause hire a Senior Full-Stack Engineer to lead web-to-app engineering across its portfolio of consumer subscription apps.

You will own the complete journey from landing page to app subscriber and build reusable infrastructure that can be scaled across multiple products.

Responsibilities

• Build and maintain landing pages, web onboarding, checkout flows, and web-to-app routing.
• Own backend endpoints, server-side events, and integrations with growth and analytics tools.
• Implement and troubleshoot RevenueCat, Superwall, Customer.io, MMP, and GA4 integrations.
• Ensure reliable attribution, event tracking, identity handoff, and subscription data across web and mobile.
• Build reusable components and implementation playbooks for the wider app portfolio.
• Partner with growth, product, mobile engineering, and data on funnel experiments and new launches.
• Diagnose and resolve checkout, tracking, routing, and attribution issues.
• Build lightweight dashboards or internal tools when needed, without owning the data warehouse.

Requirements

• Senior full-stack engineering experience with end-to-end ownership of production systems.
• Strong experience with Next.js or a comparable modern full-stack framework.
• Hands-on experience with backend endpoints, checkout or subscription flows, server-side tracking, and SDK integrations.
• Extensive experience building web-to-app funnels for mobile app growth.
• Working knowledge of RevenueCat, Superwall, Customer.io, MMPs, and GA4.
• Strong understanding of attribution and event flows across web and mobile.
• Ability to work autonomously and translate growth requirements into reliable technical solutions.

Nice to Have

• Consumer subscription app or DTC experience.
• Experience with paid acquisition funnels, experimentation, pricing, or paywall testing.
• Experience supporting multiple products or brands through shared infrastructure.
• Experience building lightweight operational dashboards.

About the Company

Digis is an international technology company, part of Fiverr (NYSE: FVRR), with 250+ specialists delivering high-load SaaS platforms, enterprise solutions, and cloud-native products for clients worldwide. We build long-term engineering teams and ensure transparency, stability, and professional growth for every talent.

About the Project

Large SaaS platform in the e-commerce domain that automates store operations for online sellers. The platform covers product importing, inventory and price synchronization, supplier integrations, order fullfillment automation, and marketplace management.

Responsibilities:

• Create new landing pages and test paid vs. free funnel models
• Integrate payment flows, including Stripe, into new funnel experiences
• Develop and test alternative versions of existing flows for A/B testing
• Integrate with Shopify and other external APIs used in the funnel
• Support and extend the existing PHP/WordPress-based funnel when needed
• Gradually migrate parts of the existing solution toward React and newer architecture

Requirements:

• 5+ years of general software development experience
• 3+ years of hands-on experience with PHP
• 3+ years of hands-on experience with ReactJS
• Experience with WordPress
• English level: Upper-Intermediate or higher

We offer:

• Competitive compensation package
• Long-term cooperation and stability
• Hybrid work model: 3 days per week in the Warsaw office
• Proven product with around 10 years of successful operation
• Strong company backing as part of the Fiverr Group
• New team built from scratch with room to shape its ways of working
• Bi-weekly engineering discussions on architecture, implementation, and knowledge sharing
• AI-powered development supported by the client, including Claude Code for coding, refactoring, PR reviews, and Jira/Confluence tasks

When applying, please confirm that you are able to work in a hybrid format and visit our Warsaw office 3 times per week.

If your experience is a strong match for this position, we’ll be happy to reach out to you to discuss the next steps.

About the Team

You will join an international Ukrainian–Israeli development team working on a data-driven product in the sports betting domain (African market), with future plans to expand into banking solutions.

Project Overview

The product collects and aggregates sports event data from multiple sources, analyzes client behavior, and distributes processed data to end users. The project is actively evolving, with a strong focus on automation and AI-driven decision-making.

Role Purpose

Both frontend and backend experience are highly important for this role. Only candidates with a .NET and Angular tech stack will be considered.

Responsibilities

• Develop and maintain backend and frontend services using .NET 5/Angluar 16
• Develop system integrations with third party providers (SMS. email, payment systems)
• Work with MS SQL databases (data modeling, performance optimization, changes management)
• Experience with Agentic.ai
• Participate in system architecture discussions and technical decisions
• Collaborate closely with the Team Lead and development team
• Take ownership of assigned components and ensure their stability in production
• Participate in estimation, planning, and Jira-based workflows
• Be available for paid on-call duty on weekends (emergency response within 1 hour, approximately 1-2 per month)

Technical Requirements

Must-have

• Angular 16
• Ionic
• .NET 5
• MS SQL
• understanding of backend architecture and data flows
• Experience working in production systems
• English B2+
  • Experience with Claude and agentic development

Nice-to-have

• RabbitMQ
• AWS
• Python

Soft Skills

• Fast learner, flexible, able to work in a fast-paced environment
• Strong sense of ownership and responsibility
• Attention to detail
• Clear and effective communication
• Team-oriented and humble mindset

What We Offer

• 100% remote work opportunity and flexitime - choose working hours between 8:00-20:00 Kyiv time.
• Personal Growth Budget in USD (Travel, Health & Psychotherapy, Sports, Education & Training, Software, Work Equipment).
• Competitive compensation in USD with regular salary reviews.
• Paid vacation, holidays, and sick leave.
• Continuous professional growth through mentorship, feedback, and knowledge sharing.
• English Speaking Club with a native speaker.
• Access to AI tools, including coding assistants for engineers and LLM subscriptions for non-technical specialists.
• Projects with clients across Europe and North America across FinTech, Logistics, Hospitality, E-commerce, Legal, Music, and other industries.
• Transparent processes, flat management structure, and a supportive team culture.

About the Role

• We are hiring a Senior Full-Stack Engineer to become one of the strongest technical contributors on the team.
• The single most important thing we’re looking for is experience scaling a SaaS product. We want someone who has already seen what happens as a live platform grows: increasing complexity, technical debt, scaling bottlenecks, evolving data models, unreliable integrations, and engineering decisions that worked at one stage but became expensive at the next.

• This is a hands-on senior engineering role with strong technical leadership expectations. You will design and write production code, own substantial systems end to end, influence architectural decisions, challenge technical direction when needed, and raise the engineering level of the people around you.

   

Project

• FinTech SaaS platform built for the restaurant and hospitality industry. Our products handle tip pooling and payouts, payroll, reporting and compliance, labor and operational data, and integrations with the systems hospitality businesses already use. The platform is live, serves thousands of customers and moves millions of dollars.

   

Required Hard Skills

• Several years operating at Senior Engineer level on a SaaS product that grew significantly while you were there. You have seen a system become meaningfully bigger and understand the problems that tend to arrive next.
• Strong Python and Django / Django REST Framework experience, or deep experience in a closely comparable backend stack.
• Strong React and TypeScript experience, with the ability to work effectively across backend and frontend when required.
• Strong PostgreSQL and data modeling skills. You should be comfortable designing schemas that can evolve as the business grows into new products and safely changing them once they contain production data.
• Production experience with asynchronous and distributed workloads using Celery or comparable technologies.
• Strong understanding of API design and third-party integrations, including failure handling, retries, idempotency, data consistency, reconciliation, and situations where the system on the other side is unreliable or outside your control.
• Strong understanding of software architecture and the ability to make pragmatic architectural decisions inside a large existing codebase rather than only designing systems from scratch.
• Experience identifying and addressing performance, scalability, reliability, and maintainability problems before they become critical.
• Strong testing practices and experience safely evolving systems that must remain operational while they are being changed.
• Production experience with Docker, CI/CD, monitoring, error tracking, and observability. 
• Strong Linux knowledge. 
• Sound judgment about technical debt: knowing the difference between an acceptable shortcut and one that will create significant problems later, and being able to improve a system while it remains in production.
• Everyday experience with using AI agents for work (Claude Code or Codex). Familiar with configuring AI toolset, understanding pros and cons of modern AI.

Current Stack

• Django / DRF, PostgreSQL, Redis, Celery, Docker, Traefik, Datadog, Sentry, Mailgun, GitHub Workflows.
• Next.js, MUI, TanStack Query, React Hook Form, Zod, Vitest.

Nice to Have

• FinTech or financial systems experience, particularly payments, payouts, ledgers, reconciliation, payroll, banking, audit trails, or other systems where financial correctness matters.
• Experience with restaurant or hospitality technology, including POS, scheduling, workforce management, payroll, or similar systems.
• Experience with high-volume or business-critical third-party integrations.
• Experience improving a system with meaningful legacy code or technical debt while the product remained actively developed.
• Experience with multi-tenant SaaS architectures.
• Experience improving engineering practices across a team rather than only within your own work.
• Experience as a Senior Engineer in a company of roughly 20–200 people, where your role included helping decide what technical work actually mattered.

Required Soft Skills

• Ability to take technical ownership beyond your own tickets and think about the health of the product and engineering system as a whole.
• Strong engineering judgment and the confidence to challenge technical decisions constructively, including decisions made by Staff Engineers and engineering leadership.
• Comfort with ambiguity. Problems will not always arrive fully specified, and part of your job is asking the questions that make them clear before code gets written.
• Ability to explain complex technical trade-offs clearly to engineers, Product, and non-technical stakeholders.
• A strong teaching mindset. You explain your reasoning, document important decisions, review code seriously, and make the engineers around you better rather than becoming the only person who understands a difficult system.
• Comfortable taking leadership during difficult technical situations without waiting for someone else to define every step of the solution.
• Strong written communication and self-direction. The team is distributed across Canada and Europe with limited live overlap, so you need to communicate clearly asynchronously and drive your own work.
• Fluent English, written and spoken.

Key Responsibilities

1. Own substantial systems end to end

• Take meaningful problems that have been identified but not fully solved and work with Staff Engineers and Product to determine the right technical approach.
• Own complex initiatives from problem definition through design, implementation, migration, testing, rollout, and production monitoring.
• Design not only for the expected path, but also for what happens when something goes wrong in production.

• Remain responsible for the systems you build once they are carrying real customer data and real money.

   

2. Help strengthen the architecture of a growing product

• Work closely with Staff Engineers and the VP of Engineering on architectural decisions and technical direction.
• Understand the existing architecture and identify where today’s decisions may create tomorrow’s problems.
• Identify areas where the platform may struggle as product complexity, integrations, customers, data volume, and transaction volume increase.
• Challenge architectural decisions constructively when you see a better approach.

• Help evolve the architecture incrementally through small, safe improvements rather than unnecessary rewrites or over-engineering.

   

3. Protect correctness, reliability, and engineering quality

• Treat financial correctness as a first-class engineering concern.
• Design for reconciliation and auditability: how we prove a number is correct, understand how it was produced, and detect discrepancies before customers do.
• Use Datadog, Sentry, logs, production data, and other signals to identify recurring problems and their root causes.
• Improve observability, error handling, testing, deployment safety, performance, and operational reliability.

• Make sure recurring production problems are solved systematically rather than repeatedly patched.

   

4. Own technically difficult areas of the product

• Lead work involving complex third-party integrations, asynchronous workflows, data synchronization, reconciliation, migrations, and failure recovery.
• Design systems that behave predictably when external APIs fail, requests are duplicated, jobs execute late, or data arrives in an unexpected state.
• Work closely with Product to make technical feasibility and engineering constraints visible before implementation begins.

• Help break large technical initiatives into safe, incremental pieces that can be built, migrated, and released without unnecessarily putting the existing platform at risk.

   

5. Make the case for important technical work

• Identify technical debt, platform investment, reliability work, and architectural improvements that may not naturally appear on the product roadmap.
• Distinguish between debt that can safely remain and debt that is materially affecting reliability, engineering speed, or future product development.
• Make the business and technical case for that work using evidence rather than engineering preference alone.

• Help sequence improvements so they support product development rather than competing with it unnecessarily.

   

6. Raise the level of the engineering team

• Be a strong technical reference point for other engineers.
• Review architecture, designs, and pull requests with a focus on correctness, reasoning, and long-term maintainability.
• Explain why you would make a decision differently rather than simply leaving a verdict.
• Mentor engineers through reviews, pairing, technical discussions, and example.
• Document important knowledge and decisions so understanding stays with the team rather than with one individual.

• Take leadership when a difficult technical problem crosses multiple areas or engineers.

   

7. Remain hands-on

• Design and write production code across the backend and frontend.
• Take direct ownership of technically difficult or risky work when appropriate.
• Debug difficult production issues and establish their root causes.
• Read and understand the existing codebase before changing it.

• Build enough direct knowledge of the platform to ensure your technical decisions are grounded in how the system actually works.

   

Who this position is not for

• This is not a role for someone whose definition of seniority is simply delivering more complicated tickets. 
• If you prefer receiving clearly defined tickets and technical solutions and then implementing them, this role will probably be frustrating.
• It is not a management role. You won’t have direct reports or headcount responsibility. Leadership here comes through technical ownership, judgment, mentoring, reviews, and influence.
• It is also not a Staff Engineer role. Our Staff Engineers and VP of Engineering set the overall technical direction and architecture. You will help shape that direction, challenge it when needed, and fully own the design and implementation of substantial systems within it.
• It is not a greenfield role. You will be joining a live platform with thousands of customers and a roadmap that does not pause while technical improvements are made. Much of the work involves understanding existing systems, migrating them safely, and improving them incrementally rather than replacing them.
• If you naturally ask what happens when the system gets significantly larger, how it fails, how we know the data is correct, and what today’s shortcut will cost us a year from now, you’ll recognize the work.

Things You Should Know Before Applying

• The engineering challenge is no longer simply building features quickly. It is continuing to ship while improving reliability, scalability, architecture, and the technical foundation required for significant year-over-year growth
• There is technical debt. Part of your job is determining which debt actually matters, making its impact visible, and helping address it without stopping product development.
• Requirements will sometimes be incomplete. We expect you to help shape the solution rather than wait for perfect specifications.

• You will be expected to disagree when necessary, propose better approaches, and explain the reasoning behind them.

   

Hello guys 👋

At Intobi, we're a software and product development company passionate about driving innovation and progress.

We help our clients succeed by delivering custom-built tech solutions designed to meet their unique needs.

Our expertise lies in developing cutting-edge Web and Mobile applications.

We’re looking for a success-driven Senior Full-Stack .NET Developer for one of our clients.

Full-Time, Long-Term position, work from the office or remote.

About the project:
This is an app for dental clinics. A team of developers, designers, DevOps specialists, and testers is working on the project.

Technical requirements:

— .NET Core, .NET 8 or later - 5+ years of experience;

— Angular 18 or later - 2+ years of experience or any other SPA frameworks like React or Vue - 5+ years of experience;

— Entity Framework Core - code first and database first approaches, understanding how EF and LINQ works under the hood;

— Experience working with MySQL or any other RDBMS;

— Distributed caching, distributed locks, Redis;

— Microservices, distributed system architecture design, scaling up vs scaling out;

— Deploying to AWS EBS and AWS ECS, experience writing CI/CD pipelines in YAML;

— Experience setting up metrics and telemetry, using OpenTelemetry, Grafana, Sentry or other monitoring tools;

— Writing integrations with API of 3rd party SaaS platforms (Xero, Quickbooks, Twilio, Stripe or others);

— Knowledge of possible security threats in web development, supply-chain attacks on developers;

— Knowing what CORS is, how it works, and how to configure CORS correctly with dynamic list of allowed domains;

— Containers, writing dockerfile, writing bash scripts;

— Knowing all of that without AI assistance;

— Being capable googling staff yourself.

Would be a plus:

— Writing integration with Xero or Quickbooks in particular;

— Creating custom nuget packages and distributing them through private nuget feeds;

— No fear using "git rebase --interactice" and solving merge conflicts;

— Experience setting up IAM system (like Keycloak) and using it for user authentication and machine-to-machine authentication;

— Writing n8n or Zappier workflows to automate routine tasks;

— Knowing and using 3rd party tools to enchance development workflow: Code Rabbit, SonarQube and others;

— Knowing how to configure AI to be most productive, and how to share this configuration with team.

What we offer:

— Competitive salary;

— Paid vacation and sick leaves;

— 8 hours a working day, 5 days a week;

— Career growth potential;

— Friendly team and corporate events.

Please send your CV here or via email.

Should the first stage be successfully completed, you’ll be invited to a personal interview.

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.

We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.

Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is building an innovative AI-powered platform that transforms how the world’s largest companies manage their real estate assets. The solution leverages the latest advancements in artificial intelligence and large language models (LLMs) to automate complex workflows, analyze massive datasets, and provide instant, intelligent answers to business-critical questions.

Their clients are large global enterprises managing thousands of real estate properties worldwide. Traditionally, real estate departments rely on manual processes and third-party services that can take weeks or months to deliver results. With this platform, these processes are automated and accelerated — what used to take months now takes minutes.

Bonus Points:
🔹Work with cutting-edge AI and LLM technologies
🔹Opportunity to solve complex, real-world enterprise problems
🔹High impact work used by global enterprise clients
🔹Full ownership across the full development lifecycle
🔹Fast-paced learning environment with modern technologies
🔹Small, agile, and highly collaborative engineering team

Key Requirements:
🔹 3+ years of experience as a Full Stack Developer;
🔹 Strong commercial experience with Node.js (NestJS preferred) or .NET with readiness to transition to Node.js/NestJS;
🔹 Frontend development experience with Angular 18+;
🔹 Strong proficiency in TypeScript / JavaScript;
🔹 Hands-on experience integrating AI/LLM features (OpenAI API, ChatGPT-based features, etc.);
🔹 Experience using AI tools for development (Cursor, GitHub Copilot, ChatGPT, Claude, etc.);
🔹 Solid understanding of relational and/or NoSQL databases;
🔹 Familiarity with cloud infrastructure and CI/CD pipelines;
🔹 Ability to independently deliver complex end-to-end features;
🔹 Up-to-date knowledge of modern frameworks and willingness to learn quickly;
🔹 English – Upper-Intermediate or higher.

What you will do:
🔹 Develop and maintain full-stack features across frontend and backend components;
🔹 Build and integrate AI/LLM-powered functionality into the platform;
🔹 Design scalable and efficient backend services and APIs;
🔹 Work with databases, including schema design and query optimization;
🔹 Collaborate with product and engineering team to deliver end-to-end solutions;
🔹 Participate in architectural decisions and system design;
🔹 Contribute to infrastructure and CI/CD improvements;
🔹 Ensure code quality through best practices, code reviews, and testing;

Interview stages:
🔹 HR Interview;
🔹 Technical Interview;
🔹 Interview with VP R&D - (30 min)
🔹 Culture Fit Interview with HR (Client-side HR) - (30 min)
🔹 Reference Check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.