Lightning AI | Full-Stack Engineer, Backend Engineer, AI Performance Optimization Engineer | SF, NYC, or London Hybrid 2 days a week onsite | Full-time

About us: After creating and releasing PyTorch Lightning in 2019, Lightning AI was launched to reshape the development of artificial intelligence products for commercial and academic use.

Apply here: https://job-boards.greenhouse.io/lightningai

Gumroad — NYC (onsite/hybrid) — Hiring Product/Engineering

We build tools that help creators sell directly to their audiences. Small team, big surface area: you’ll ship end-to-end (product → design → code → metrics).

Looking for: strong product-minded engineers (backend, full-stack, or generalist). Bonus if you’ve built marketplaces, payments, or creator tools.

Nice-to-have stack: Rails/Stripe/Postgres/Redis/React/TypeScript—but we value ownership over checkboxes.

Email Email is hidden with a couple links (GitHub, portfolio) and 2–3 sentences on why you want to build for creators.

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Deviceflow | Senior Full-Stack Engineer (front-end heavy), Senior Platform Engineer | Remote, overlapping with US Time-Zones | Full-time

Deviceflow is bringing modern software to the medical devices industry. You can read more about us and the roles here: https://app.dover.com/jobs/deviceflow

tl;dr Looking for our first and second engineering hire.

Founders:

CEO + CTO: Exited a bootstrapped startup in this space. Existing relationships with the customer base for this startup.

VP Eng: 10+ years building teams at funded startups. (some yc). Angel investor. Daily HN reader.

Bring your software engineering experience (5+ YoE minimum) and participate in building a startup. Near-Market Pay (for your YoE) with first hire equity.

Pluses (but not required):

* Production Experience with Svelte/Sveltekit (for full-stack role)

* Experience with HIPAA

Freetrade | London (ONSITE) | Full-time | https://freetrade.io | £75k-£140k

Freetrade is a commission-free investing app used by over 1 million people in the UK. Our team is expanding, and we’re seeking software engineers to evolve and scale our core investing platform. In this role, you will be instrumental in building and maintaining reliable and trustworthy systems for trade execution, clearing and settlement, asset servicing, and internal operational tools. You will also play a key role in shaping our technical direction and mentoring other engineers as our team grows.

Tech we use: TypeScript, Node.js, Postgres, and GCP

Note: We are three days in the office, located just around the corner from Old Street.

We don’t sponsor visas at the moment.

We are hiring across the board in engineering, data, people, marketing, risk & compliance and finance.

See all of our opportunities here: https://freetrade.io/careers

Teleskope[0] | Full-Time | ONSITE(Hybrid) in NYC Financial District

Teleskope is redefining data security for the AI era with the industry’s first agentic platform that combines precise visibility with automated remediation. Teleskope autonomously scans, catalogs, and classifies data in motion and at rest while automating remediations that understand and adapt to each organization’s unique risk profile, enabling security teams to manage data sprawl proactively while securely enabling AI adoption.

Backed by M13, Primary Venture Partners, Lerer Hippeau, and others, Teleskope is trusted by organizations including Ramp, Legal Zoom, Alloy, GoFundMe, and The Atlantic.

We just announced our Series-A[1] and are looking to continue to grow the team. We are looking for Applied NLP Scientists and Senior/Staff Engineers. More details at

https://www.teleskope.ai/careers https://www.linkedin.com/company/teleskopeai/posts/

Nango | Staff backend engineer | Remote | Full time | $120-200k + equity

Nango (YC W23) is an open source product: Developer infrastructure for product integrations.

We power the integrations of Semgrep, Motion, Vapi, Exa, and hundreds of other B2B software.

Small but highly experienced team, hard technical challenges (scale + infra devtool running untrusted user code), tons of ownership, direct customer contact, growing very fast.

We are looking for a Staff engineer that can touch every part of stack and is passionate about dev infrastructure.

Website: https://nango.dev Jobs: https://nango.dev/careers

Langdock (YC S23) | Product Engineers (Full-stack), Infrastructure Engineers, AI Associates | Berlin, Germany ONSITE | https://langdock.com

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We're Langdock, and we've built the LLM platform that 2,000+ companies trust to power AI features for 100,000+ users. After hitting $10M ARR with 10x year-over-year growth, we're expanding our Berlin team to shape the next chapter of conversational AI.

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Product Engineer (Full-stack) | €66K – €102K | Equity | €10K – €30K Bonus

Build product features from conception to deployment, collaborating closely with our CPO and working across the entire tech stack to deliver AI-powered features that drive enterprise adoption.

Stack: NextJS, React, Prisma, Postgres, Redis

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Infrastructure Engineer | €66K – €102K | Equity | €10K – €30K Bonus

Contribute to our deployment infrastructure and lead integrations with customer cloud environments. You’ll work hands-on with the latest cloud and container technologies, ensuring our platform runs reliably and securely for some of Europe’s top enterprises

Stack: Terraform, Azure, AWS, GCP, OpenShift

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AI Associate | €66K – €75K | Equity | €10K – €15K Bonus

Three-month rotational program with a pathway to high-impact commercial roles. You’ll join a cohort of technical, customer-facing talent who build deep product expertise and commercial acumen from day one.

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Check out our jobs page here: https://jobs.ashbyhq.com/langdock

Absinthe Labs | Full-Stack Engineer | REMOTE / NYC Hybrid | Full-Time

About us: Absinthe is building the most sophisticated gamification engine for crypto-native incentive programs. Since 2022, our products have reached 50M+ visits and 2M+ active users. We’re a 10 person, well-funded team shipping fast.

The problem we’re solving: Tracking per-user activity across DeFi protocols sounds simple but is surprisingly hard. Want to know how long someone held an LP position, or which users provided liquidity for more than 30 days? That data is on-chain but can’t be efficiently queried today.

We built an indexing framework that turns protocol events into time-weighted balances and point-in-time actions. Adapters map protocol-specific semantics (Uniswap ≠ Aave ≠ Morpho) into a unified model. The engine handles state, TWAP pricing, and exporting data anywhere. With ~100 lines of adapter code, you can track user balances and contributions at a fidelity no one else supports.

Why it matters: This infrastructure underpins analytics, loyalty, and incentive programs across Web3. We see the Absinthe Adapter Library becoming the default developer layer for embedded finance.

The role: We’re hiring a Full-Stack Engineer to own features end-to-end schema design, wiring GraphQL, polished frontends, and deployment. Our stack: Next.js, Hasura, dbt, MotherDuck/DuckDB, GraphQL, and in-house Web3 indexing. See open positions here: absinthe.network/careers#open-positions

Get involved: - Explore product functionalities at: [https://guides.absinthe.network](https://guides.absinthe.network/)

- Explore the Adapter Library docs: https://docs.absinthe.network/ - Join our Slack community to hack on adapters and connect with the team: https://join.slack.com/t/absinthecommunity/shared_invite/zt-...

BES Group | C#/.NET Application Dev Lead | UK Manchester - Hybrid 2 days per week onsite| English fluency required | Full-time | £75k-£85k

We're an engineering safety inspection and testing group. MS Azure stack and MS Dynamics. 50% hands-on dev - 50% dev team leading.

Apply here: https://careers.besgroup.com/jobs/vacancy/applications-devel...