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Trainee Software Engineer Startup Jobs in Florida

Iru

Senior Software Engineer, Iru Identity

Miami, FL

$117K - $154K/yr

Iru was named to Forbes' America's Best Startup Employers 2025 list for employee engagement and satisfaction. The Opportunity As a Senior Software Engineer on Iru's Identity product, you'll join a ...

Iru

Senior Software Engineer, Fullstack, Experience

Miami, FL · Hybrid

$117K - $154K/yr

Iru was named to Forbes' America's Best Startup Employers 2025 list for employee engagement and satisfaction. The Opportunity As a Senior Software Engineer (Full-Stack) on Iru's Customer Experience ...

Iru

Senior Software Engineer, Fullstack, Experience

Miami, FL · Hybrid

$117K - $154K/yr

Iru was named to Forbes' America's Best Startup Employers 2025 list for employee engagement and satisfaction. The Opportunity As a Senior Software Engineer (Full-Stack) on Iru's Customer Experience ...

Harness

Full-Stack Software Engineer

Tampa, FL · On-site

$115K - $135K/yr

About the Role We're looking for a Full-Stack Software Engineer (Hybrid, Tampa, FL) to help power ... Experience in a startup or high-growth environment. * Exposure to CI/CD workflows, monitoring tools ...

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What are the key skills and qualifications needed to thrive as a Trainee Software Engineer at a startup, and why are they important?

To thrive as a Trainee Software Engineer at a startup, you need a solid grasp of programming fundamentals, problem-solving skills, and a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, agile methodologies, and common programming languages such as Python or JavaScript is typically required. Initiative, adaptability, and strong communication skills help you stand out in a fast-evolving, collaborative startup environment. These qualities are crucial for quickly learning new technologies, contributing effectively to small teams, and driving innovation in a dynamic setting.

What can a Trainee Software Engineer at a startup expect in terms of mentorship and learning opportunities?

As a Trainee Software Engineer at a startup, you can expect hands-on learning with close mentorship from senior engineers or team leads. Startups often foster collaborative environments where feedback is frequent and accessible, allowing you to quickly build technical and problem-solving skills. You'll likely be exposed to a variety of technologies and development processes, giving you a broad learning experience. Additionally, the fast-paced nature of startups means you'll have opportunities to take on significant responsibilities early in your career, accelerating your growth.

What does a Trainee Software Engineer do at a startup?

A Trainee Software Engineer at a startup typically assists in developing, testing, and maintaining software applications under the guidance of senior developers. They participate in coding, debugging, and learning new technologies relevant to the company's tech stack. Startups often offer a dynamic environment where trainees quickly gain hands-on experience, work on real projects, and contribute to various aspects of the software development process. This role is ideal for recent graduates or those looking to begin their careers in software engineering.
What are the most commonly searched types of Software Engineer Startup jobs in Florida? The most popular types of Software Engineer Startup jobs in Florida are:
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Trainee Software Engineer Startup jobs near you
Infographic showing various Trainee Software Engineer Startup job openings in Florida as of June 2026, with employment types broken down into 6% Internship, 88% Full Time, and 6% Contract. Highlights an 89% In-person, and 11% Remote job distribution.

Senior Software Engineer, Iru Identity

Iru

Miami, FL

$117K - $154K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 19 days ago

Job description

About Iru

Iru is the AI-powered security & IT platform used by the world's fastest-growing companies to secure their users, apps, and devices. Built for the AI era, Iru unifies identity & access, endpoint security & management, and compliance automation-collapsing the stack and giving IT & security time and control back.

Iru is backed by some of the smartest investors in tech-General Catalyst, Tiger Global, Felicis, Greycroft, and First Round Capital. In July 2024, Iru raised $100 million from General Catalyst, valuing the company at $850 million. Customers include Notion, Cursor, Lovable, Replit, and Mercor, and Iru partners with industry leaders such as ServiceNow and AWS. Iru was named to Forbes' America's Best Startup Employers 2025 list for employee engagement and satisfaction.

The Opportunity

As a Senior Software Engineer on Iru's Identity product, you'll join a small, high-ownership team building a brand-new product approaching General Availability (GA). You'll help shape the architecture and core systems behind a unique runtime environment, focusing on reliability, security, and scalability.

This is a role for engineers who can operate with independence, think from first principles, and go deep-especially in backend systems and databases

How You'll Make a Difference Day to Day
  • Build core product systems: Design and implement backend services and end-to-end flows that power the Identity product.
  • Go deep on data + SQL: Ability to design correct, performant, and maintainable  Raw SQL.
  • Engineer for reliability and security: Build systems with strong execution guarantees, resilience, and clear operational behavior-especially in a constrained, low-level runtime.
  • Own critical architecture decisions: Evaluate tradeoffs, document reasoning, and choose solutions based on requirements-not tool trends.
  • Operate with high autonomy: Identify what needs to be built, propose approaches, and execute with minimal hand-holding.
  • Use AI responsibly: Leverage AI tools where helpful, while demonstrating the depth to review, validate, and correct AI-generated code.
  • Raise the bar through collaboration: Participate in code reviews and technical discussions with a focus on clarity, quality, and long-term maintainability.
Minimum Qualifications
  • 5+ years of professional software engineering experience (or equivalent depth)
  • Strong backend engineering experience building cloud-oriented, server-side systems
  • Demonstrated experience with SQL and relational databases (Postgres/MySQL or similar), including writing non-trivial queries in production environments
  • Experience with server-side concurrency / multi-threading and the realities of production systems (performance, failure modes, debugging)
  • Proficiency in at least one compiled language (e.g., Go, Java, C#, or similar)
  • Proven ability to work independently, take ownership, and drive projects from concept to delivery
  • Strong engineering judgment: requirements-first problem solving and clear articulation of tradeoffs
  • Comfortable working in an environment with limited "black boxes" and high responsibility for core flows
  • Ability to work onsite in Miami Tuesday through Thursday as part of our hybrid schedule
Preferred Qualifications
  • Full-stack experience (with a backend/data emphasis); React experience is a plus
  • Experience designing or supporting systems with high correctness requirements (e.g., idempotency, guaranteed execution, fintech/payments-like constraints)
  • Identity/security domain experience (authN/authZ, access control, secure system design)
  • Experience at smaller or high-growth teams where engineers own large portions of the stack
  • Infrastructure or performance experience paired with a product delivery mindset
  • Familiarity with AWS and operational best practices (monitoring, logging, incident response)
Benefits & Perks

Competitive salary
Hybrid work environment (3 days in office per week) 
100% individual and dependent medical + dental + vision coverage
401(K) with a 4% company match
20 days PTO
Iru Wellness Week the first week in July
Equity for full-time employees
In-office lunch stipend provided
Up to 16 weeks of paid leave for new parents
Paid Family and Medical Leave
Modern Health mental health benefits for individuals and dependents
Fertility benefits
Working Advantage employee discounts
Onsite fitness center
Free parking
Exciting opportunities for career growth

We are excited to be serving a significant need for a fast-growing market, and are proud of the high-performing team we have brought together so far. If you're someone who wants to engage in new, exciting projects that will challenge your skills in the best way possible, we would love to connect with you.

At Iru, we believe in fostering an inclusive environment in which employees feel encouraged to share their unique perspectives, leverage their strengths, and act authentically. We know that diverse teams are strong teams, and welcome those from all backgrounds and varying experiences.

Iru is proud to be an equal opportunity employer committed to diversity and inclusion in the workplace. Qualified applicants will be considered for employment without regard to race, color, religion, national origin, age, sex, sexual orientation, gender identity, physical or mental disability, protected veteran or military status or any other status protected by applicable law. #LI-Hybrid
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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