Demo

Senior Backend Engineer

Blitzy
Cambridge, MA Full Time
POSTED ON 11/24/2025
AVAILABLE BEFORE 3/23/2026

About Blitzy

Blitzy is a Cambridge, MA based Seed Stage Generative AI start-up. We are on a mission to automate custom software creation to unlock the next industrial revolution.

We're backed by multiple tier 1 investors, have success as founders at the last start-up, and dozens of Generative AI patents to our names.

Compensation: $150,000-$200,000 annual salary

Location: One Kendall Square, Cambridge MA 02139 (In-person role)

About the role

We are looking for a Senior Back End Engineer to join our team and take ownership of different parts of our stack. You will be working alongside our CTO on all aspects of the current product and future product development. You will work directly with the founding team and leverage your experiences and abilities to inform decisions from product, technology, and strategy. You will help us build the foundation of this company: its culture, its processes, and its practices. There are a ton of interesting problems to solve, so come hungry. If your colleagues describe you as curious, driven, kind, and creative you will be a culture fit.

What Success Looks Like

  • You write, review and ship code in production. Your employer or client’s success depends on the software you build.
  • You use Generative AI tools on a daily basis to enhance the quality and efficacy of your software and non-software deliverables.
  • You are a self-starter and enjoy working with minimal supervision.
  • You evaluate and make technical architecture decisions with a long-term view, optimizing for speed, quality, and safety.
  • You take pride in the product you create and the code that you write.
  • Your team can rely on you to get them out of a sticky situation in production.
  • You can work well on a team of sales executives, designers and engineers in an in-person environment.
  • You are passionate about the enterprise software development lifecycle and feel strongly about improving it.
  • You are a first principles engineer who exercises curiosity about the technologies you work with.
  • You can learn quickly about technologies, software and code that you are not familiar with, often from rudimentary documentation.
  • You take ownership of the code that you write, and you help the team operate with everything that you build, throughout its lifecycle
  • You communicate openly and solicit feedback on important decisions, keeping the team aligned on your rationale.
  • You exercise an optimistic mindset and are willing to go the extra mile to make things work.

Areas of Ownership

Our hiring process is designed for you to demonstrate a generalist set of capabilities, with a specialization in Back End Technologies.

Successful candidates must have expertise in Python, Terraform, GCP, and GKE (Kubernetes) experience with some of the following:

  • Backend Frameworks and Technologies - Python, Node.js, NuxtJS, or Express.js
  • Cloud Platforms - Google Cloud, AWS, Azure or Vercel
  • Programming languages - Python, JavaScript, TypeScript, Java, C , Go
  • RPCs - REST, gRPC or GraphQL
  • Databases - SQL, NoSQL, Postgres, MongoDB, or Firebase
  • CI / CD - Jenkins, CircleCI, GitLab or similar
  • Source code versioning tools such as Git or Perforce
  • Microservices architecture

Please note: We are strongly seeking candidates with backend cloud engineering with the specific mentioned proficiencies above. Those with this expertise will given priority consideration.


Ways to stand out

  • Extensive Experience in Python, Terraform, GCP, GKE (Kubernetes)
  • Familiarity with AI Platforms - OpenAI, Anthropic, HuggingFace, Vertex AI, Bedrock, or SageMaker
  • Extensive experience with building enterprise-scale applications with >99% SLAs


You’ll Get...

  • Competitive Salary
  • Paid medical, dental, and vision insurance for you and your dependents
  • 4% 401K match
  • Equity
  • Flexible vacation days, sick days, and work from home days
  • Technology (hardware, software, reading materials, etc.) equipment and / or allowance
  • The opportunity to re-shape an entire industry and create a platform that changes the future of software creation.
  • Beautiful office environment with adjacent offices shared by other start-ups. It’s an energizing community.
  • Unlimited snacks, fizzy water, coffee, espresso, and whatever else you need to perform at your best.


Culture

  • Who we are: Our founding team is composed of a Serial Gen AI Inventor and a Serial Entrepreneur. We work hard, have a curious mind-set, and believe in a low-ego high output approach.
  • We love to move fast on all ‘two-way door’ decisions. A good decision made today is better than a ‘perfect’ decision in 1 week.
  • We believe in the importance of being an ‘everyday athlete’ so you can bring your best mind to work. We promote getting great sleep, motion/movement in daily, along with whatever other type of restorative activity gets you to optimal mental performance. It makes for a happier and more productive team.
  • More tactically, we leave the office in time to have dinner at home with our families nearly every night.


What we ask of you:

  • Please ask yourself if you are ready for a challenge before applying. Even in optimal conditions, Start-Ups are hard, and are always a lot of work. What you do week to week will change. If this feels exciting, not concerning, that’s a good sign.
  • They also require a lot of autonomy. We will be in person, and we have relevant experience, but we do not have all the answers. Like every start-up, we continue to discover as we build. If this is exciting, please reach out.


To apply

Apply through this posting.

Process

  • Here’s what you can expect.
  • 10-minute intro call
  • 4x Interviews Notification of offer with timeline to accept


Salary : $150,000 - $200,000

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