Senior Backend Software Engineer
$150k - $180kStrategic Employment
Senior Backend Software Engineer
We're hiring a Senior Backend Software Engineer to own architecture and system design as we scale our platform. You'll build and maintain production services in TypeScript, Python, and PostgreSQL, working directly with our CTO — a former Netflix and Apple backend engineer — on a self-hosted infrastructure stack (Kubernetes, Terraform) he built from scratch. This isn't a "prompt-and-ship" seat: nearly our entire engineering workflow runs through AI tooling we built ourselves, and we need someone who can review AI-generated code with real judgment, catch what it gets wrong, and make the harder calls on data modeling, sync vs. async, and scalability that AI can't make on its own.
We're an early-stage, venture-backed startup (Seed stage, backed by well-known VC investors) building AI-powered software for the accounting and professional services industry. Founded a few years ago, we're small — around a dozen people — remote-first, and move fast. Our technical leadership has built large-scale distributed systems at major tech companies, and we've taken the harder road of provisioning our own infrastructure rather than leaning on managed vendor services, because owning that stack is part of how we build an AI-native engineering culture from the ground up.
Key Responsibilities
- Own backend architecture and system design decisions as the platform scales
- Build and maintain production services in TypeScript, Python, and PostgreSQL
- Review, refine, and architect around AI-generated code with strong engineering judgment
- Work directly with technical leadership on infrastructure, data modeling, and scalability tradeoffs
- Contribute to a self-hosted infrastructure environment — containerized deployments, infrastructure-as-code
- Help build the agentic AI tooling becoming core to our product roadmap
Qualifications
- 5+ years of professional backend software engineering experience, with fundamentals developed independent of AI-assisted coding
- Production experience with TypeScript, Python, and PostgreSQL (or clear equivalent depth)
- Bachelor's degree in Computer Science or a related technical field
- Demonstrated system design and architecture capability — you can reason through tradeoffs, not just default to one "right" answer
- Comfortable owning ambiguous problems independently in a small, fast-moving startup
- Excellent verbal communication — able to explain and defend technical decisions clearly under pushback
- Professional (not personal-project) experience building agentic AI systems, and/or prior startup experience, is a strong plus
What We Offer
- $150,000–$180,000 base salary, plus 0.1%–0.3% equity
- Comprehensive dental, vision, and PPO health insurance
- Flexible, fully remote work environment (any of the 50 states)
- Brand-new MacBook Pro
- Direct mentorship from technical leadership with large-scale systems experience at top technology companies
- ...Backend Software Engineer Flexcompute is leading the transformation of engineering simulation with our revolutionary ultra-fast simulation technology. Our flagship products, including the industry-leading Computational Fluid Dynamics (CFD) software Flow360 and electromagnetic...Senior
- ...Flexcompute is leading the transformation of engineering simulation with our revolutionary ultra-... ...Computational Fluid Dynamics (CFD) software Flow360 and electromagnetic simulation software... ...Overview We are looking for a Backend Software Engineer to help us design and...Senior
$163k - $246.5k
...Backend Engineer Semgrep, the leader in code security for builders, empowers invention without friction. Teams catch, flag, and fix real issues before they ship, powered by security that learns as they build. Semgrep secures code as it's written and provides guardrails...SeniorCurrently hiringLocal areaRemote workWeekend work3 days per week- ...explore new ideas, but always rooted in engineering best practices. As a result, we can... ...interests different from our own. As a Senior Backend Engineer, you will develop reliable, secure... ..., deploy, maintain, and improve software Manage individual project priorities...SeniorWork at officeWorldwide
- ...frequently measuring the performance of our features and iterating based on those results. As a Senior Software Engineer, you will play a key role in building backend services that directly impact our business metrics and accelerate member growth. You'll work cross-...SeniorFull timeWork at officeRelocation
- ...Job Title: Senior Backend Engineer (Java, AWS, React) Openings: 1 Target Start Date: ASAP Duration: 6 months - possibility for extension and conversion Location: Boston Onsite: Must be able to go into the PS office in Boston...SeniorWork at officeImmediate start3 days per week
$150k - $210k
A health and performance technology company is seeking a Senior Software Engineer to design scalable backend services that enhance user engagement and support growth initiatives. This role involves collaborating with cross-functional teams to deliver impactful features...SeniorWork at office- ...get worse, at the customer's expense. We're looking for a Senior Backend Engineer to join our core engineering team. You'll design and build... ...experience designing and building cloud systems. ~ Strong software development skills and a bias toward shipping fast. ~ Bachelor...SeniorWork at office
- ...Backend Engineer We're developing powerful conversational AI solutions that solve real-world business challenges. As a Backend Engineer, you'll be part of a team focused on the development and support of a robust and scalable platform that powers all of our chatbots...Senior
- ...Senior Backend Software Engineer We are seeking a Senior Backend Software Engineer to join our core team. You will help design, implement, and ship the core data pipeline and processing platform within our AI-native cloud platform. Your role involves building robust...Senior
- ...Senior Backend Software Developer We are looking for a Senior Backend Software Developer to join us working on a suite of products that... ...them fully searchable in real time. There is some serious engineering behind making all of that work and we want to find people...SeniorWork at office
- ...insights that enhance fitness, health, sleep, and recovery.As a Senior Software Engineer on the Core team, you will build the foundations that power... ...the design and implementation of foundational backend capabilities that improve scalability, reliability, and developer...SeniorWork at officeRelocation
- Boston, MAOnsiteFull Time$200k - $220kJob Description An AI-startup in Boston is hiring a Senior Backend Developer for their team. As a Senior Backend Developer, you’ll be a point person for building and scaling out their flagship CRM product, helping them to streamline...SeniorFull time
$165k - $200k
...change. This is a ground-floor opportunity for a hands-on backend engineer to build the core services and AI infrastructure powering... ...-native platform for complex hardware development. This senior engineer will work alongside our engineering team, AI researchers...SeniorPermanent employmentRemote work- ...developers across the company to proactively address Data Rights concerns and engineering challenges. Work in a cross functional team that works closely with multiple teams including, Software, Product, InfoSec, GRC, IT and Legal Manage and improve Transcend system...SeniorFull timeWork at officeRelocation
- Lila Sciences in Cambridge, MA is seeking a Senior Software Engineer with backend experience to join their Lab Software Team. This role involves designing and building high-performance UI and APIs, developing database architectures, and collaborating with cross-functional...Senior
- ...Job Description Job Description Senior Backend Engineer Role The Opportunity As a Senior Backend Engineer, you’ll design and build scalable backend systems for an AI-driven data platform. You’ll lead technical projects, handle large-scale data processing, and...SeniorRemote work
- ...Senior Backend Engineer We're looking for a Senior Backend Engineer to help define the future of AI-powered, human-led healthcare. You'll sit on our Platform & Integrations team, owning the core product primitives the rest of the company builds on: external APIs, health...SeniorRemote work
- A leading 3D printing company is seeking a Digital Systems Engineer to design and enhance applications related to eCommerce, CRM, and marketing. The role involves architecting back-end solutions within Shopify B2B and collaborating with various stakeholders to drive business...SeniorFull time
$150k - $215k
...through a deeper understanding of their bodies and daily lives.WHOOP is hiring a Senior Software Engineer to join the Business Systems team. In this role, you will design and implement the backend systems that power WHOOP’s internal operations, enabling scale and efficiency...SeniorFull timeWork at officeRelocation$150k - $200k
...Senior Software Engineer (Backend) Title of Role: Senior Software Engineer (Backend) Location: Boston, hybrid Company Stage of Funding: Venture-Backed Office Type: Hybrid Salary: $150K-$200K Company Description We're representing a dynamic company...SeniorWork at office- ...Senior Back-End Engineer We are looking for a talented Ruby on Rails developer with 5+ years of web application development experience to join our successful, growing, and well-funded startup in Boston. We know you're out there and want to be part of something meaningful...SeniorContract work
$119.5k - $149.4k
...build the future together. The Crown Is Yours As a Senior Software Engineer, Go, you'll help build the technology powering DraftKings Exchange... ..., financial markets, and entertainment. You'll develop the backend systems that support a high-performance exchange platform,...SeniorFull timeImmediate start- ...superior fraud detection capabilities. Join a team committed to advancing the state of the art in fraud prevention technology. Senior Backend Engineer (Rust & Serverless) The Mission We are looking for a Senior Backend Engineer to own the "brain" of our application....SeniorRemote job
$150.7k - $177.3k
Senior Back End Software EngineerLocation: Cambridge, MA / Hybrid(This role requires working in-office 3 days per week: Tuesday, Wednesday, and... ...channels. Fueled by our proprietary data assets and AI traffic engine, EverQuote is transforming how providers attract and engage...SeniorFull timeWork at office3 days per week$106.9k - $147k
Become a part of our caring communityThe Senior Full Stack Engineer Performs software engineering activities in all layers of the stack, from setting up... ...API Architecture:** Design and lead development of core backend services, REST and GraphQL APIs, and service-to-...SeniorFull timeTemporary workApprenticeshipRemote work- ...Senior Software Engineer – Backend Anywhere Type: Permanent Category: Engineer Industry: Technology Workplace Type: Remote Reference ID: JN -052026-106925 Date Posted: 08/09/2026 Shortcut: Description Recommended Jobs Description...SeniorHourly payPermanent employmentFull timeLocal areaRemote work
$90k - $125k
...future. We’re seeking an exceptional Backend Engineer to join and help build the core... ...our core product, working closely with senior engineers to deliver production-ready features... ...are established per Pave Compensation Software. We’re also proud to offer equity in...SeniorFull timeLocal areaFlexible hours$120k - $170k
...Pickle is looking for a Backend Software Engineer to join our Human-Robot Interaction team, focused on building scalable systems that support... ...role. We often consider candidates at different levels of seniority, and final compensation will reflect the level at which they...Full time- KAYAK is seeking a Senior Java Software Engineer to enhance our Retention and CRM systems. This position involves designing scalable backend services aimed at improving user retention and engagement. You will collaborate with engineers and product managers to deliver impactful...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Backend Software Engineer. Be the first to apply!
- back-end developer Boston, MA
- senior backend developer Boston, MA
- backend software engineer Boston, MA
- remote back end developer Boston, MA
- senior network engineer remote Boston, MA
- senior app developer Boston, MA
- senior manager legal Boston, MA
- sr project manager Boston, MA
- senior account executive Boston, MA
- senior manager strategic initiatives Boston, MA



