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Callibrity logo
Callibrity

Founded by developers for developers

Senior Java Software Developer

Backend EngineerSoftware EngineerOtherRemoteSeniorTeam 51-200H1B No SponsorCompany SiteLinkedIn

Location

United States

Posted

93 days ago

Salary

0

Seniority

Senior

Job Description

Senior Java Software Developer

Callibrity

• Are trusted advisors to our clients and seen as thought leaders in the tech industry • Are keenly aware of big picture business problems and goals and capable of a leadership role • Mentor, train, and upskill your Callibrity peers and clients’ teams • Can solve a wide variety of problems with the appropriate solution drawn from a large subset • Communicate complex ideas effectively, both verbally and in writing • Proactively identify problems, challenges, and issues and recommend the best possible solution • Demonstrate mastery and cable to teach software development best practices (Agile, DevOps, Test Automation, CI/CD, TDD) to others • Stay ahead of the curve by exploring new technologies including AI, Machine Learning, Cloud, and IoT • Thrive in an environment where there is close interaction among different roles and teams • Are admired by the client as someone they can count on, regardless of title or seniority

Job Requirements

  • 5+ years of full-stack enterprise Java development experience
  • Professional experience in corporate Information Technology and/or Consulting
  • Experience leading a team of Software Developers and Associate Software Developers is a plus
  • Mentorship and pair programming experience
  • Four-year degree or successful completion of respected developer bootcamp/accelerator, or extensive mentorship program
  • Experience with Git / GitHub, Spring Boot, Bootstrap, Gradle/Maven or other similar tool is preferred
  • Experience with SQL, JavaScript, Angular, React, Version Control and Agile is preferred
  • Desired experience with Kafka and Jenkins is a plus
  • Cloud experience with AWS, Azure, and/or Google Cloud Platform preferred
  • Experience with Docker, Kubernetes, and/or developing applications for a major public cloud provider is a plus
  • Successfully solve Callibrity’s HackerRank and Code Pairing Challenges
  • Interpersonal skills: Influencer, professionalism and accountability, passion for learning, us not them mentality, shared responsibility
  • Interest and enthusiasm for learning and growing in your career
  • Embodies Callibrity’s Core Values
  • Must be authorized to work in the United States, without sponsorship.

Benefits

  • Health/Vision/Dental insurance effective first day of employment
  • 401k match vested immediately
  • Profit Sharing Bonus
  • Annual professional development stipend $1500
  • One time bonus for remote office set up
  • Paid parental leave
  • Paid bench time
  • Paid flex time for training, blogging, speaking engagements, and thought leadership
  • Paid time off for vacation (2-5 weeks depending on level), holidays (8)
  • Competitive industry salary
  • Lunch and learns
  • Team building events
  • Small company feel with the resources of a sustainable and proven business model
  • High employee retention and satisfaction (One of Cincinnati’s Best Places to Work!)
  • Work-life balance

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This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description We're looking for a backend engineer who can own and evolve our Ticketing & Ride Request (TRR) system — the service that handles everything from a rider tapping "Request a Ride" to a vehicle arriving at their station. This is a high-throughput, event-driven system where reliability isn't optional; real people are standing on a platform waiting for their ride. You'll also contribute to the broader backend infrastructure that supports our suite of applications — think message queues, caching layers, database performance, and service-to-service communication. If you've ever been the person on your team who gets pulled into debugging the weird one, you'll feel at home here. We care far more about how you think than where you went to school or how many years are on your resume. To show us you actually read this posting and aren't auto-applying, start the first sentence of your cover letter with the words "Ride request received." — we'll know you're paying attention. What You'll Work On - Designing and maintaining the TRR backend — ride matching, station queueing, request lifecycle management, and fare calculation - Building and operating services on top of PostgreSQL, Redis, and RabbitMQ in a Kubernetes environment - Improving system observability — tracing, metrics, alerting — so we catch problems before riders do - Collaborating on API design with our frontend, mobile, and operations teams - Participating in incident response and post-mortems; we run blameless retros and expect engineers to dig into root causes, not just restart pods - Contributing to capacity planning and load testing as we scale to new deployment sites Qualifications - Strong experience building backend systems that handle real traffic at meaningful scale - Deep fluency in at least one backend language (TypeScript/Node.js, Go, Python, or Java) — we use TypeScript heavily but value polyglot thinkers - Hands-on experience with PostgreSQL (query optimization, indexing strategies, schema migrations) and Redis (caching patterns, pub/sub, rate limiting) - Familiarity with message broker patterns — RabbitMQ preferred, but Kafka or NATS experience translates well - Solid understanding of distributed systems fundamentals: consistency models, failure modes, backpressure, idempotency - Experience with Kubernetes in production — not just deploying, but debugging networking issues, resource contention, and pod lifecycle surprises - Strong debugging instincts: you're the kind of engineer who reaches for tcpdump or strace before restarting the service Bonus Points - Experience with event-driven architectures or CQRS patterns - Familiarity with Temporal.io or similar workflow orchestration frameworks - Background in transit, logistics, or any domain where latency directly impacts a physical-world experience - Experience operating multi-tenant or multi-site deployments - You've written a runbook that actually saved someone at 2am Company Description Glydways is reimagining what public transit can be. We believe that mobility is the gateway to opportunity—connecting people to housing, education, employment, commerce, and care. By making transportation more accessible, affordable, and sustainable, we empower communities to thrive and unlock economic and social prosperity. Our mission is to revolutionize transit with a solution that delivers high capacity, exceptional user experiences, unmatched affordability, and minimal environmental impact. The Glydways system is a groundbreaking network of carbon-neutral, interconnected transit pathways powered by standardized autonomous vehicles on dedicated roadways. Operating 24/7 with on-demand access, it offers personalized and efficient mobility—without the burden of heavy upfront infrastructure costs or ongoing taxpayer subsidies. With Glydways, we’re building more than a transportation system; we’re creating a future where everyone, everywhere, has the freedom to move.

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