Senior Software Engineer (JavaScript / RoR)

Velozient; Brasil; Remote; BRL 712,000 - 1,069,000; Full time

Benefits offered by this job

PTO 15 days

Floating day

Sick leave

National holidays

Job summary

Velozient is seeking a Staff Software Engineer (Ruby on Rails) for a fully remote role with a U.S. client.

This position requires 8+ years of software engineering experience, including 5+ years building/maintaining production RoR apps, and the ability to collaborate with cross-functional teams to design, implement, and optimize features. You will lead complex initiatives, mentor engineers, and shape architectural decisions while contributing to AI-driven tooling, testing, and reliable

Qualifications

• 8+ years in professional software engineering, including 5+ years building/maintaining production Ruby on Rails apps.
• Deep Ruby/Rails expertise with relational data modeling and PostgreSQL.
• Experience leading complex initiatives across multiple engineers from brief to release.
• Experience integrating APIs and diagnosing reliability, performance, and data issues.
• Experience building user interfaces with HTML, CSS, JavaScript, and modern frontend approaches.

Responsibilities

• Partner with product managers and cross-functional teams to lead complex initiatives.
• Lead PRDs, technical designs, estimates, and delivery plans; break work into milestones.
• Design and build Ruby on Rails features, data models, and integrations; establish reusable patterns.
• Lead engineering efforts for AI-enabled features, tooling, testing, permissions, and monitoring.
• Mentor engineers, perform code reviews, and ensure quality through automated tests.
• Lead safe deployments and migrations with rollback plans and validation.
• Apply AI thoughtfully throughout planning, design, and release while protecting data.
• Identify constraints and measure improvements in reliability, quality, or delivery time.

Skills

Ruby on Rails

SQL/PostgreSQL

HTML/CSS/JS

Tech leadership

API integration

AI tooling

English communication

Education

University degree

Tools

Stimulus

Turbo

Tailwind CSS

Sidekiq

Heroku Shield

Job description

We are looking for a full-time, remote Staff Software Engineer (RoR) with 8+ years of software engineering experience, including 5+ years building and maintaining production Ruby on Rails applications, to join our U.S. client tight-knit, experienced engineering team. In this role, you will collaborate with cross-functional teams to design, implement, and optimize applications, while contributing to critical Ruby on Rails features, integrations, and engineering best practices.

Our client is venture capital backed, healthtech company changing how the industry codes medical information by building a marketplace that connects healthcare companies with over 4,000 certified coding specialists. The client is focused on expanding quickly its product, engineering, and design teams with passionate builders who thrive in a fast-paced environment to support its rapid growth.

Responsibilities

• Partner with product managers and cross-functional teams to clarify business needs, resolve ambiguity, and lead complex initiatives involving multiple engineers
• Lead Product Requirements Documents, technical designs, estimates, and delivery plans; break initiatives into achievable milestones and coordinate dependencies
• Design and build critical Ruby on Rails features, data models, and integrations; establish reusable patterns and guide architectural decisions across application areas
• Help lead the engineering approach for user-facing AI agents, including shared tooling, evaluations, automated tests, permissions, monitoring, and failure handling
• Guide consistent interfaces using the design system in Claude Design and existing pages; build and reuse views, components, styles, and accessible interaction patterns
• Set a strong example for quality through hands-on development, automated tests, browser checks, and code reviews; mentor engineers, including Senior engineers, and unblock delivery
• Lead safe deployments and migrations, including sequencing, rollback plans, and validation; follow through on production issues and address recurring causes
• Use AI throughout planning, design, development, review, and release; help the team apply it effectively, protect sensitive information, and verify results. Humans own the finished work
• Identify engineering constraints that affect delivery or operations; build agreement on focused improvements and measure whether they improve reliability, quality, or delivery time

Required Experience

• Excellent English communication and interpersonal skills
• 8+ years of professional software engineering experience, including 5+ years building and maintaining production Ruby on Rails applications, with examples of hands-on delivery and technical leadership
• Deep Ruby and Rails expertise, relational data modeling, SQL, and PostgreSQL or a comparable database, including experience evolving production architecture incrementally
• Experience creating user interfaces with HTML, CSS, JavaScript, and a modern frontend approach
• Experience leading complex initiatives across multiple engineers, resolving dependencies, and taking work from an ambiguous brief through a successful release
• Experience integrating APIs and diagnosing reliability, performance, and data issues across the stack, with sound judgment about migration risk and operational cost
• Practical experience using AI tools, reviewing generated code critically, and helping other engineers adopt effective testing and verification practices
• Clear written and verbal communication, with examples of building agreement, mentoring Senior engineers, and adapting a technical proposal in response to feedback
• An interest in consistent, accessible interfaces and the details that make a workflow understandable and reliable
• Proven delivery experience in a vibrant, dynamic startup environment
• A collaborative approach, a can-do attitude, and a relentless pursuit to attain goals and solve problems
• Trustworthy, team-oriented, and transparent

Desired Experience

• University degree or relevant industry experience (ideally a technical or engineering degree)
• Experience in healthcare, healthtech industry, or growth-stage startups
• Experience with Stimulus, Turbo, Tailwind CSS, Sidekiq, or Heroku Shield

Additional Information

Knowing your ideas are heard and matter, think big! You get to own your job and be recognized for your contributions Work with smart and creative people Making mistakes is human. Let's learn from them. Be transparent! We recognize you as an individual no presumptions or judgment. Be the extraordinary you!

15 days Paid Time Off (PTO), 1 floating day, 3 sick days, and designated national holidays

Start: ASAP

About Velozient

We are a privately held, nearshore software development company providing outsourced development resources to North American companies. Our mission is to offer development talent who enjoy taking on challenging work, want to grow their skills and experiences building software, and excel in a fast-paced, dynamic team environment. We are focused on providing world-class remote resources to work as valued client team members. If this type of opportunity excites you, then consider joining our team!