Senior Full Stack Engineer .NET / React (554)
WFA Digital Insight
Ubiminds’ Senior Full Stack Engineer sits at the intersection of back‑end reliability and front‑end usability for a globally used interview platform. The role leans heavily on .NET and React to stitch together internal tools and external ATS connections, meaning you’ll be shaping both the product’s core services and the day‑to‑day workflow of its users. What makes this opening stand out is the focus on automation: you’ll be expected to replace manual, repetitive steps with scalable code, directly influencing how quickly clients can adopt new integrations. Collaboration is distributed, so strong English communication and a habit of documenting architectural decisions are essential. If you thrive on turning ambiguous requirements into concrete, production‑ready features, this team will give you the latitude to own complex integrations from design through delivery.
Job Description
Info on the Senior Fullstack Engineer .NET / React role Ready to take the next step in your international career? We can support you! Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their global teams. We curate top LATAM talent and connect professionals with long-term, high-impact opportunities while providing full employer-of-record support. In this role, you will join a US-based product company that builds digital interviewing and talent assessment solutions used globally. Challenge We’re looking for a Senior Full Stack Software Engineer with strong .NET (C#) and React expertise to join one of the Engineering (Integrations)teams. As a Senior Software Engineer specializing in Integrations, you will be responsible for coding our cutting-edge human interaction software, specifically focusing on an Enterprise-level SaaS Video Interview and/or chatbot platform. You will work independently and collaborate directly with other Software Engineers, an Engineering Team Lead, QA Engineers, Product Managers, and Product Designers to bridge our platform with the broader HR tech ecosystem. In this role, you will specifically innovate on Internal Tools to improve our users' day-to-day experiences and build and maintain robust connections with external Applicant Tracking Systems (ATS). A key part of your mission will be to drive solutions that automate repetitive manual tasks, shifting the focus toward high-impact innovation.
Responsibilities
Integrations & Ecosystem Connectivity:Design and implement seamless connections between our platform and external ATS systems to ensure a "plug-and-play" experience for clients.Master diverse third-party APIs while maintaining high standards for data integrity and system reliability. Internal Tooling Innovation: Innovate on bespoke internal tools that empower our team members and drive a better day-to-day experience for our own users. Prototype and build solutions that transform complex internal workflows into intuitive, high-performance interfaces. Automation & Efficiency: Proactively identify and drive solutions to automate repetitive manual tasks across the organization. Use performance and error monitoring tools to ensure these automated solutions improve the overall customer and internal user experience. Engineering Excellence: Contribute to the design and implementation of scalable solutions, write comprehensive tests, and perform thorough code reviews for peers. Effectively document work and architectural patterns for consumption by the broader engineering team. Participate in daily and weekly engineering team meetings to align on work schedules and SDLC progress. Coaching & Leadership: Provide guidance and constructive feedback to new or associate team members. Demonstrate continual learning of new languages, libraries, and industry SDLC best practices. MandatorySkills
- Strong experience with .NET (C#) in production environments.
- Solid experience building modern front-end applications with React.
- Experience working with MS SQL or similar relational databases.
- Senior-level mindset with strong ownership and accountability.
- Experience working on existing production systems (not only greenfield).
- Ability to handle evolving requirements and technical ambiguity.
- Strong English communication skills (written and verbal).
- Experience collaborating in distributed teams.
Nice to Have
- Experience with microservices architectures.
- Familiarity with AWS cloud environments.
- Exposure to test automation practices.
- Experience with AWS AI-related services such as SageMaker, Lex, Comprehend, or Rekognition (bonus, not required). Team & Environment: - Join one of the Assessment-focused engineering teams.
- Collaborative environment with senior engineers and technical leadership.
- Strong focus on product evolution and maintainability.
- Challenge yourself. There’s always room for improvement and continuous improvement is in our essence.
- Make it happen. Be ready to take challenges as they come. It’s all about attitude and commitment.
- We’re in this together. We work as a team, thrive as a team, and evolve as a team.
- Averaging on awesome.
- Keep it real. We promise you honesty, transparency, and openness, regardless of the situation. Perks and Benefits As a Full Stack Engineer - NET / React @Ubiminds, you: - You are placed in a product-based company, with the same treatment as their full-time employees.
- Have our full back-office support, from career guidance to HR and concierge services.
- Enjoy our remote-first policy – we are a distributed team, after all.
- Get your own MacBook (none of that "bring your own device" stuff here).
- Have access to growth opportunities with other amazing technology professionals, through tech talks, chapter meetings, and even remote happy hours for tons of fun!
- Improve your English through free lessons with a native English speaker - get to the next level on your communication skills!
- Candidate Referral bonus (promote Ubi to your tech friends, and get paid for it!) - Miss working in the office?
How to Stand Out
- Showcase a portfolio of full‑stack projects that include both .NET APIs and React UIs, highlighting any integration work.
- In your cover letter, reference specific ATS or HR tech APIs you’ve connected to, emphasizing data‑integrity challenges you solved.
- Prepare to discuss how you’ve automated manual processes in past roles; concrete examples will set you apart.
- Brush up on AWS basics, especially any services mentioned, as interviewers may probe your cloud familiarity.
- When negotiating, factor in remote‑work stipends and professional‑development budgets as part of total compensation.
- Watch for vague descriptions of ownership; ask during interviews how decisions are made within the Integrations team.
- Ensure your English communication is clear and concise; you’ll be collaborating daily with distributed teammates.
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