{"id":3466347,"url":"https://alion.io/job/tech-stack-middle-full-stack-software-engineer-net-react","title":"Middle Full-Stack Software Engineer (.NET + React)","company":{"id":454527,"name":"Tech Stack","domain":"tech-stack.com","url":"https://alion.io/company/tech-stack-2","size_band":"11-50","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Ukraine"],"countries":["UA"],"hiring_countries":["UA"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"AWS","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"JavaScript","optional":false},{"name":"MS SQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"RabbitMQ","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"Amazon EC2","optional":true},{"name":"Amazon ECS","optional":true},{"name":"Amazon S3","optional":true},{"name":"AWS Fargate","optional":true},{"name":"AWS Lambda","optional":true}],"status":"live","first_seen_at":"2026-10-13T13:56:01Z","employer_posted_date":null,"last_verified_at":"2026-10-13T13:56:01Z","board_verified":false,"closed_at":null,"days_open":20,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":20},"description":"About us :\n\nTechstack is a technology product engineering company that sets an example for high development standards in the IT industry. We empower each team member to influence the development of the product, company, and processes.\n\nAbout the product :\n\nWe are looking for a Middle Full-Stack Engineer (.NET + React) to join a project for our US-based partner, a digital healthcare company providing remote cardiac monitoring solutions for clinics and hospitals.\n\nThe engineer will work on a web-based application that enables healthcare professionals to manage patient monitoring studies and access clinical information. You’ll contribute to both the .NET backend and React-based frontend, developing new functionality, improving existing features, and supporting the security, reliability, and scalability of the product.\n\nYour team :\n\nYou’ll join a cross-functional team of .NET developers, QA engineers, an Automation QA Engineer, and a Team Lead. You’ll work closely with the team on developing and improving the product.\n\nCore technology stack:\n\nBackend: C#, .NET, ASP.NET Core, Entity Framework Core\n\nFrontend: React, JavaScript, HTML5, CSS3\n\nArchitecture & data: REST APIs, microservices, MS SQL Server, PostgreSQL\n\nIntegration & security: AWS SQS; RabbitMQ/Kafka; OIDC, SSO, API security\n\nCloud & delivery: AWS (ECS, Fargate, EC2, Lambda, S3), Docker, CI/CD\n\nYour responsibilities:\n\nDevelop and maintain features across .NET backend services and a React-based web interface.\n\nBuild reusable UI components and integrate them with REST APIs.\n\nDevelop and maintain REST APIs, integration services, and scalable, stateless backend components.\n\nWork with MS SQL Server, PostgreSQL, and Entity Framework Core.\n\nImplement and support asynchronous service communication using message queues such as AWS SQS, RabbitMQ, or Kafka.\n\nApply secure development practices, including authentication/authorization, OIDC/SSO, and API security.\n\nWork with AWS-hosted services and support Docker-based deployments and CI/CD pipelines.\n\nInvestigate and resolve issues across the frontend and backend.\n\nParticipate in code reviews and technical discussions.\n\nCollaborate with developers, QA engineers, and project stakeholders.\n\nMaintain relevant technical documentation.\n\nContribute to the security, reliability, scalability, and maintainability of the application.\n\nIt's about you:\n\n3+ years of professional experience with C# and .NET\n\nStrong practical experience with ASP.NET Core, REST APIs, Entity Framework Core, and microservices\n\nHands-on commercial experience with React and JavaScript\n\nComponent-based UI development and frontend/API integration\n\nWorking knowledge of HTML5, CSS3, and responsive web interfaces\n\nSolid SQL skills and experience with relational databases, including MS SQL Server and PostgreSQL\n\nHands-on experience with AWS-based applications\n\nHands-on experience with containerization\n\nExperience with integrations and message queues\n\nUnderstanding of asynchronous communication\n\nUnderstanding of authentication/authorization, OIDC/SSO, secure coding, and API security\n\nAbility to translate requirements into technical solutions\n\nClear communication, problem-solving skills, and ownership\n\nHow to join:\n\nPre-screening with a recruiter\n\nExpert review of your resume\n\nEnglish check\n\nInterview with our experts\n\nCustomer interview\n\nCulture:\n\nAt Techstack, we care about how we build products — not only about the result, but also about the quality of the engineering process and the way we work together.\n\nWe encourage people to keep learning, share what they know, and take ownership of their work.\n\nTech Guilds — communities where specialists share knowledge, discuss technical solutions and approaches, and keep up with industry trends.\n\nMeetups and knowledge sharing — opportunities to share your experience with colleagues and the wider tech community.\n\nMentoring and leadership — opportunities to grow as a mentor, technical lead, or take on other roles where you can support others and share your expertise.\n\nWe believe that good products come from people who care about what they build, keep developing their expertise, and are comfortable both challenging ideas and being challenged.\n\nWhat we have for you:\n\nFlexible work format — remote work or one of our hubs in Kyiv, Lviv, Kharkiv, or Wrocław, plus flexible working hours.\n\nProfessional growth — Tech Guilds, mentoring, meetups, knowledge sharing, and other development opportunities.\n\nEducation support — 50% compensation for professional courses, trainings, webinars, and certifications.\n\nEnglish — free General English, Business English, and speaking clubs.\n\nTime off — 20 paid days off and 7 paid sick days per year, plus additional days off.\n\nSupport — legal and accounting support.\n\nCommunity — online and offline team activities, professional events, and appreciation gifts.\n\nSee yourself in this role? Send us your resume and let’s start the conversation!","description_format":"text","description_chars":4940,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule"],"hiring_locations":[{"name":"Ukraine","iso":"UA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Health Care"],"lifecycle":[{"event":"open","at":"2026-10-29T15:24:45Z"}],"visa":[],"liveness":{"score":11,"band":"cold","label":"Long shot","p_open":0.85,"p_active":0.375,"p_room":0.35,"age_days":19,"expected_fill_days":7,"reasons":["seen:19","agency","velocity","win:tail"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/tech-stack-middle-full-stack-software-engineer-net-react","json_url":"https://alion.io/job/tech-stack-middle-full-stack-software-engineer-net-react.json","meta":{"generated_at":"2026-11-02T21:13:39Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":29623,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":454527},"rest":"https://alion.io/mcp/rest/get_company?id=454527"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftech-stack-middle-full-stack-software-engineer-net-react"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ftech-stack-middle-full-stack-software-engineer-net-react"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ftech-stack-middle-full-stack-software-engineer-net-react"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/tech-stack-middle-full-stack-software-engineer-net-react\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftech-stack-middle-full-stack-software-engineer-net-react"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3466347}},{"tool":"search_jobs","arguments":{"company":"tech-stack.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3466347},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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