Staff Engineer - Full Stack
Synquery
Job Title: Staff Engineer – Full Stack Location: Greater Boston (Hybrid) About Us Synquery is redefining how expert insights are accessed and applied. Backed by leading VCs including Audacious Ventures, Afore Capital, and Caesar Ventures, we’re building an AI-native expert network that connects clients to expertise with unmatched speed, precision, and efficiency. We’ve designed our platform from the ground up for the age of AI—powering features like AI-driven interviewing agents and AI based expert sourcing/search. With a proven MVP and growing traction, we’re expanding our team to scale the platform and build the future of expert insight. If you're passionate about shaping AI-first products, we’d love to hear from you. The Role As a Staff Engineer, you’ll define and implement the core systems powering Synquery. You’ll work hands-on across the stack, contribute to architectural decisions, and guide product-aligned engineering efforts. You’ll also help establish our technical standards, influence hiring, and mentor teammates. This role is ideal for an experienced engineer excited to wear multiple hats—builder, architect, leader—and make foundational contributions to a fast-moving AI product. Responsibilities Build Core Systems: Design, implement, and maintain robust, scalable, and secure software solutions. Contribute to the Architecture: Contribute to the technical architecture decisions to ensure scalability, maintainability, and performance of our systems. Collaborate Cross-Functionally: Partner with product, design, and ML teams to translate business goals into robust features. Advise and Guide : Provide technical guidance when needed to less experienced engineers and help shape a high-performance, collaborative culture. Innovate: Leverage emerging technologies in AI/ML, generative AI, and hybrid search to enhance product capabilities. Shape Engineering Culture: As a founding team member, influence team practices, tooling, and values from the ground up. Qualifications Experience: 7+ years in full-stack software development, ideally with experience in early-stage or high-growth startups. Technical Stack: Proficiency in Python (FastAPI), TypeScript (Next.js), PostgreSQL, AWS, Docker. Experience with LLM APIs (GPT, Claude, etc.) and/or vector DBs (e.g., Pinecone) is a big plus. Product Mindset: Strong collaboration with product teams, with an ability to balance speed, quality, and user impact. Startup Experience: A dynamic, entrepreneurial approach to problem-solving. Thrives in fast-paced, ambiguous environments with a “get-it-done” attitude. Problem-Solving: Skilled at designing resilient systems and debugging complex issues in live environments. Team Collaboration: Solid interpersonal skills with the ability to work well with team members from varied cultural backgrounds. Communication Skills: Strong ability to clearly communicate to both technical and to a lesser extent business audiences. What We Offer High Impact Role: Be a pivotal contributor to Synquery’s growth and success. Career Growth: Opportunities for rapid advancement as the company scales. Equity Ownership: Meaningful equity options. Competitive Compensation: Competitive salary with flexible work arrangements. Supportive Culture: A collaborative team that values diversity, innovation, and mutual respect. Continuous Learning: Opportunities for professional development and working on cutting-edge technologies. #J-18808-Ljbffr Synquery
$195.24k - $235.49k
...Staff Frontend Engineer As a Staff Frontend Engineer at CivilGrid, you'll be a foundational member of our engineering team — building... ...critical infrastructure projects. You'll work across the full frontend stack, ship user-facing features on non-traditional surfaces...FullstackLocal areaRemote workFlexible hours$195.24k - $235.49k
...growth. We give utilities, civil engineers, and municipalities a single,... ..., and municipalities with full chain-of-custody documentation... ...build for. WHY THIS ROLE As a Staff Frontend Engineer at CivilGrid... ...work across the full frontend stack, ship user-facing features on...FullstackLocal areaRemote workFlexible hours$106.61k - $284.28k
...evaluation, red‑teaming, and user feedback; document tradeoffs and recommendations. Production Engineering & Enterprise Readiness Build production‑grade services and full‑stack experiences (APIs, UIs, workflows) with secure authentication/authorization, audit logging,...FullstackHourly payFull timeTemporary workLocal area- ...pipelines to customer deployments, you take responsibility for the full stack without waiting for someone else to handle the hard parts.... ...of collaborating effectively in shared codebases with high engineering standards Nice‑to‑have: Direct experience with audio/speech...FullstackShift work
- ...their way. Position Overview Lydian is hiring for a Staff Controls & Automation Engineer that will design, build, and own a state-of-the-art controls... ...Control Architecture & System Design Architect the full control stack for pilot → demo → commercial plants, including PLCs,...FullstackRemote workFlexible hours
- ...build an immersive, intuitive, robust, and full-featured control center for managing and... ...automate decision-making and analysis. Engineering Rigor: Deep understanding of test-driven... ...confederation of Automation Testbeds. Full-Stack Development: Maintain and enhance...FullstackTemporary workWork at officeLocal areaRemote workWorldwide
- Join CVS Health as a Staff Full Stack Engineer in Wellesley, MA, to lead the Utilization Management team in delivering high-quality software solutions. In this role, you will drive UI architecture and contribute to the development of healthcare technologies that enhance...FullstackFull time
$118k - $150k
...Staff DevOps Engineer Building the world's most capable robots demands world-class software infrastructure. As a Staff DevOps Engineer... ..., and secure-by-default configurations across the full infrastructure stack. Collaborate across teams. Partner with software and...Fullstack- ...objects—all in real-time and with exceptional accuracy. As an engineer in the Scene Understanding team, you will develop advanced... ...dataset construction to power our ML flywheel Lead the full post-training stack for VLMs and VLAs, including C ontinual Pre-training (CPT...FullstackTemporary workRelocation package
- .... You will work across C++, Qt/QML, QGroundControl (QGC), and full-stack technologies to translate autonomous platform capabilities into... ...will design and develop major GCS features, mentor mid-level engineers, and represent the GCS/C2 team directly to autonomy capability...FullstackFull timeTemporary workPart timeWork experience placementLocal areaWorldwide
$90k - $157.5k
...individually as well as lead GenAI /Agentic AI projects through your full-stack development and architecture expertise. This position requires... ...teams.Work with a team of data scientists, machine learning engineers, software engineers and QA engineers.Drive rollout &...FullstackTemporary workFlexible hours- ...PTN_US_GBAMSREQID_CandidateBeelineID i.e. PTN_US_9999999_SKIPJOHNSON0413 Bill Rate: market rate-75/hr MSP Owner: Kelly Gosciminski Location: Boston, MA - onsite Duration: 6 months GBaMS ReqID: 10418642 Java Full Stack DeveloperFullstack
$135.9k - $181.2k
...connected, and confident in their technology. We’re looking for a Staff IAM Engineer to join our IT team in Boston, Massachusetts . In this role,... ..., equity, and other forms of compensation, in addition to a full range of medical, retirement, and lifestyle benefits. More...Work at officeRemote work2 days per week$100k
...commitment to solving hard problems. We are growing our team and looking for contributors of all seniorities. Tenstorrent is seeking an engineer who will focus on pre‑silicon verification of DFD logic in advanced AI SoCs, driving coverage of debug, test, and bring‑up...Permanent employment$165k - $185k
...and technically strong Embedded Firmware Engineer to join our Device Engineering team. This... ...architecture modernization efforts. As a Staff Engineer, you will own and evolve... ...and review device drivers, communication stacks, and application‑level firmware with an emphasis...Casual workWork at officeImmediate startWorldwide- ...data and AI platform that enables organizations to harness the full power of Postgres for transactional, analytical, and AI... ...observability. For more information, visit Job Summary As a Staff Security Engineer at EDB, you will be a technical leader with a developer-...Remote work
- ...Staff Corporate Security Engineer Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 200,000 businesses worldwide with fully integrated solutions...Worldwide
- ...of analysis into seconds of action. ASI is leading the way and pushing the boundaries of what’s possible. What You Will Do As a staff engineer, you will lead the most complex and high impact technical challenges in our Defense unit. You will architect new solutions and...
$106.61k - $284.28k
...community at a time. Position Summary The Staff Engineer, Regulatory Technology Engineering is... ...collection for complex, modern technology stacks, including cloud‑native platforms,... ...represents the base hourly rate or base annual full‑time salary for all positions in the job...Hourly payFull timeTemporary workLocal area$105k - $150k
Select how often (in days) to receive an alert: Staff Engineer, Mechatronics Design Date: Apr 4, 2026 Location: Remote Employee US, NH, US... ...at every stage of product development - from drawing board to full-scale production and after-market services for products from advanced...Temporary workCasual workWork at officeLocal areaRemote work- Airspace Intelligence in Boston, Massachusetts is seeking a Staff Engineer to tackle complex technical challenges in the Defense unit. You will lead projects, mentor other engineers, and define engineering excellence while leveraging modern LLM tools. Experience with time...Flexible hours
- Join Form Energy as a scientist to drive the slurry and dispersion development for next-generation electrodes in Massachusetts. This role involves designing and optimizing aqueous slurries, diagnosing dispersion challenges, and working closely with a talented R&D team. ...
$206k - $236k
Lightmatter, a leader in AI data center infrastructure, is seeking a Design Verification Engineer in Boston, MA. This role involves collaborating with digital design experts and working with photonic and analog designers to ensure design integrity through advanced verification...- ...role you will have the opportunity to work on the Infrastructure Engineering team to develop our world-class offering of Teradata hybrid-... ...reliable, and scalable. Who You’ll Work With This position is for a Staff Virtualization Engineer for our Platform Infrastructure team....Permanent employmentWork experience placementFlexible hours
$205k - $272k
...Pittsburgh, Remote U.S. Only On our Behaviors team (Prediction and ML Planner), you will have the opportunity to work with world‑class ML engineers, whose mission is to make self‑driving vehicles a reality and to create a positive social impact. The Behaviors team develops ML...Remote work$205k - $272k
Motional AD Inc. is seeking an experienced ML Engineer to join our Behaviors team in Boston. This role is pivotal in advancing autonomous driving technology by designing and executing motion planning projects, leveraging state-of-the-art AI and ML techniques. The ideal...Remote job- ...in partnership with chemists, materials scientists, and battery engineers. This is an exciting opportunity to help shape and be part of... ...health, we cover 100% of medical, dental, and vision premiums for full‑time employees - and 80% of healthcare premiums for dependents....Full timeWork experience placementRelocation package
$185k - $230k
A technology-driven company is seeking a Principal Full Stack Engineer to build an AI-powered platform that transforms the engineering services industry. This remote-first position offers a competitive salary between $185,000 and $230,000, alongside equity opportunities...FullstackRemote work- ...Java Full-Stack Developer Experience: 8+ Location: Boston, MA Key Responsibilities Lead and mentor a team of developers to design and build Java applications using Spring Framework and Spring Boot. Develop, test, and maintain robust, scalable, and secure...Fullstack
$127.3k - $165.5k
...Job Description: Saab Inc., Autonomous and Undersea Systems division is seeking an innovative and experienced Senior Staff Electrical Engineer to support our growing team working on Autonomous Underwater Vehicles (AUVs) and Remotely Operated Vehicles (ROVs). This...Temporary workFor contractorsWork experience placementFor subcontractorCasual workLocal areaRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Staff Engineer - Full Stack. Be the first to apply!
- staff engineer Boston, MA
- senior staff systems engineer Boston, MA
- assistant engineer Boston, MA
- senior staff engineer Boston, MA
- assistant electrical engineer Boston, MA
- software engineer staff Boston, MA
- technology administrator Boston, MA
- engineering aide Boston, MA
- full-stack ruby on rails developer Boston, MA
- full stack node.js developer Boston, MA

