Senior Software Developer

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September 19

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Perseus Group, Constellation Software

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B2B • SaaS

Perseus Group is a part of Constellation Software Inc. , focused on investing in and building enduring software businesses. With operations in over 100 vertical markets and a family of more than 800 companies, Perseus Group specializes in acquiring B2B software companies that provide mission-critical solutions for niche markets. Their approach involves offering permanent capital, fostering a culture of excellence, and ensuring recurring revenue through SaaS or maintenance models. The group emphasizes continuous improvement, empowered leadership, and integrity in all operations.

10,000+ employees

Founded 1997

🤝 B2B

☁️ SaaS

📋 Description

• Design & deliver cloud-native applications using modern patterns (serverless, event-driven, containerized) with a focus on scalability, resilience, and cost efficiency • Own the full stack: React + TypeScript on the front end; .NET (C#) and/or Node.js/TypeScript on the back end; SQL as a primary store, augmented by NoSQL where it fits • Build robust APIs (REST/JSON; GraphQL a plus), integrating with internal, third-party, and AI-powered services securely and efficiently • Craft intuitive, performant, and accessible UIs using modern web frameworks, ensuring responsive design across devices and optimizing for SEO and usability • Apply Infrastructure as Code (IaC) to define, provision, and evolve cloud infrastructure • CI/CD & release engineering: automate build/test/deploy with modern pipelines; Security by default: embed security best practices across the SDLC • AI & Data Integration: work with data pipelines, AI/ML APIs, and analytics tooling to enrich applications with intelligent search, personalization, and automation • Mentor & lead: guide code reviews, pair program, evolve standards, and coach developers on cloud patterns, AI integration, and clean architecture • Collaborate with Product and Design to turn ambiguous requirements into clear, testable, high-impact deliverables • Writing clean, well-documented code that adheres to team standards and best practices • Take ownership of coding assignments with minimal supervision required

🎯 Requirements

• 6+ years building and operating production web applications at scale • 3+ years hands-on with cloud-native development in production • Strong proficiency in C#/.NET and/or TypeScript/Node.js for backend services • Strong experience with SQL (schema design, performance tuning, query optimization) • Familiarity with NoSQL patterns where appropriate • Front-end experience with modern web UI frameworks (React preferred) • Experience with IaC and automated CI/CD pipelines • Solid grasp of distributed systems concepts: idempotency, retries/backoff, eventual consistency, partitioning, caching • Excellent communication; able to simplify complex trade-offs and lead design reviews • Strong ability to solve complex problems independently • Experience working in an Agile/Scrum environment

🏖️ Benefits

• participation in a Company profit sharing bonus plan • enrollment in a wide range of choices of benefits, including medical, dental, vision, basic life insurance, short/long term disability, 401(k) participation (with company match) • minimum of 10 days of vacation for new employees • sick time based on state requirements • 8 Company-paid holidays and 2 personal holidays per year