LLM Modeling & Post-Training Engineer
About the Opportunity
We're partnering with a globally recognized enterprise organization that is making a significant investment in next-generation AI capabilities and building a world-class AI Engineering function.
This team is focused on developing advanced AI systems that combine frontier AI research with large-scale enterprise deployment, tackling some of the most challenging problems in reasoning, alignment, reliability, safety, and model optimization.
As an LLM Modeling & Post-Training Engineer, you'll play a key role in shaping the behavior, performance, and reliability of large language models used across complex, high-impact environments. Working alongside AI researchers, platform engineers, architects, and product leaders, you'll help bridge the gap between cutting-edge AI research and production-grade systems operating at scale.
This role focuses on the core modeling layer of modern AI systems - supervised fine-tuning, reinforcement learning, preference optimization, reward modeling, alignment, evaluation, and large-scale training workflows.
We are looking for individuals who understand not only how to use LLMs, but how to improve and shape model behavior through advanced post-training techniques.
This is not a prompt-engineering-only role. The ideal candidate has hands-on experience with fine-tuning and aligning open-weight or proprietary foundation models using techniques such as SFT, RLHF, PPO, DPO, GRPO, RLAIF, LoRA, and QLoRA, and understands how these methods impact reasoning quality, safety, latency, cost, and production reliability.
Work You'll Do
As an LLM Modeling & Post-Training Engineer, you will design, train, evaluate, and optimize large language models for enterprise use cases involving complex reasoning, domain specialization, structured outputs, workflow execution, and alignment with business objectives.
You will work across the full post-training lifecycle, including:
• Supervised fine-tuning (SFT)
• Reinforcement learning and alignment
• Preference optimization and reward modeling
• Synthetic data generation and curation
• Evaluation and benchmarking
• Model safety and red teaming
• Distributed training and inference optimization
• Productionization of fine-tuned models
You will collaborate with platform engineers, domain experts, AI architects, and product leaders to translate complex business requirements into high-performing, reliable, and controllable AI systems.
The Team
You will join a multidisciplinary team of AI researchers, modeling engineers, platform engineers, architects, and domain specialists building next-generation enterprise AI systems.
The team operates at the intersection of frontier AI research and large-scale enterprise engineering, tackling highly complex reasoning challenges, evolving operational workflows, and demanding reliability requirements.
Success in this role requires strong technical depth, intellectual curiosity, an experimentation mindset, and the ability to translate advanced AI research into practical, production-ready systems.
Why Apply?
• Work on cutting-edge AI challenges involving reasoning, alignment, and post-training
• Help shape the next generation of enterprise AI systems
• Collaborate with highly technical researchers, engineers, and architects
• Access modern AI infrastructure, tooling, and large-scale training environments
• Join a growing AI organization with significant executive sponsorship and long-term investment
• Competitive compensation and strong career growth opportunities
Strategic Enterprise Account Executive
Remote (United States) | Up to $170K Base | $300K–$340K OTE + Equity
Join a high-growth company solving a problem every commercial building faces.
A venture-backed technology company is building a category-leading platform that helps commercial real estate owners, construction firms, and industrial organizations reduce risk, lower operating costs, and improve sustainability outcomes.
The business has achieved significant growth internationally and is now investing heavily in scaling its US enterprise sales organization. The platform combines real-time monitoring, predictive analytics, and a unique ecosystem of strategic partnerships to help customers prevent costly losses, improve operational efficiency, and create measurable financial impact.
This is an opportunity to join a company operating at the intersection of AI, enterprise software, risk management, and sustainability while helping build the next phase of its US growth story.
What You'll Do
- Develop and close enterprise opportunities across commercial real estate, construction, industrial, and infrastructure accounts
- Manage complex sales cycles with deal sizes ranging from $20K to $1M+
- Build relationships with executive stakeholders across Risk, Operations, Facilities, Sustainability, and Insurance functions
- Drive net-new business while expanding strategic enterprise accounts
- Partner closely with SDRs, Solutions Engineers, Customer Success, and Leadership
- Help shape the next phase of the company's US go-to-market strategy
Why This Opportunity Stands Out
- Up to $170K base salary with $300K–$340K OTE and meaningful equity participation
- Well-funded growth-stage business with significant investment behind US expansion
- Massive greenfield market opportunity with very low penetration today
- Enterprise customers include Fortune 500 companies, major developers, and leading construction organizations
- Multiple buying centers within every account spanning Risk, Operations, Facilities, Sustainability, and Insurance
- Unique strategic partnerships create a genuine competitive advantage and compelling ROI conversation
- Clear business case centered around reducing losses, lowering operating costs, and improving efficiency
- High-ownership culture with significant visibility and autonomy
What We're Looking For
- Enterprise SaaS sales experience
- Proven track record closing complex, multi-stakeholder deals
- Experience managing long sales cycles and strategic accounts
- Strong executive presence and consultative selling skills
- Ability to prospect, build pipeline, and drive opportunities from initial engagement through close
- Experience selling into commercial real estate, facilities, construction, risk, insurance, sustainability, infrastructure, or adjacent enterprise markets is highly desirable
Why Join?
Many software companies spend their time convincing customers they have a problem.
This organization is solving a problem customers already know exists.
The platform helps organizations prevent costly incidents, improve operational efficiency, reduce resource consumption, and lower overall risk exposure. The result is a highly compelling value proposition with measurable ROI and multiple paths into enterprise accounts.
For enterprise sellers who enjoy building markets, navigating complex organizations, and closing high-impact deals, this represents an opportunity to join a category-defining company during a significant phase of growth.
Global BD Director / Senior Manager — Merchant Payments & Fintech Sunnyvale, CA | $190,000–$270,000 Base + Bonus + Equity
Close the deals that define where payments are going next.
A well-funded, high-growth fintech platform is looking for a senior hunter to own global strategic partnerships end-to-end. This is a company at a genuine inflection point — they've recently launched first-of-its-kind payment technology in partnership with two of the largest card networks in the world, putting them ahead of where the market is heading.
This role is built for someone who has spent their career opening doors at the C-suite level, closing complex multinational deals, and thriving in fast-moving environments without a playbook to fall back on.
What You'll Do
- Source, negotiate, and close global and regional partnerships with top-tier merchants and enterprise accounts
- Own the full cycle — pipeline generation through deal structuring, close, and post-launch
- Engage directly with C-suite decision-makers at Fortune 500s, global retailers, and e-commerce players
- Lead cross-functional collaboration across Product, Tech, Marketing, and regional BD teams to push deals through
- Build and expand the company's footprint across retail, travel, gaming, SaaS, and financial services verticals
What We're Looking For
- 5–8+ years in BD, partnerships, or enterprise sales within payments or B2B fintech
- Proven track record closing large-footprint, multinational accounts
- Real C-suite access and credibility — not just champion-level relationships
- Full-cycle ownership mentality — sourcing through negotiation through post-close launch
- Comfortable operating in ambiguous, fast-moving environments
Nice to Have
- Background at a recognized payments company (Stripe, Adyen, PayPal, Checkout.com, Braintree, Worldpay, or similar)
- Existing network in retail, e-commerce, gaming, or travel you can activate immediately
- Experience managing deals with cross-border or multi-jurisdiction complexity
- Mandarin language skills — not required but genuinely valued
What You'll Get
- $190,000–$270,000 base salary depending on level and experience
- Company performance bonus + meaningful equity upside
- Full medical, dental, and vision coverage
- 401(k)
Why Join? You'll be joining a small, high-caliber team where ownership is encouraged and commercial excellence is valued. The company processes payments for some of the world's most recognizable brands across hundreds of markets — and they're now building the next generation of how global commerce moves money. If you want to close deals that matter, in a category that's just getting started, this is worth a conversation.
c.koperek@lawrenceharvey.com
We are looking for an experienced Senior Technical Product Manager to join a dynamic international team and play a key role in the development of a strategic enterprise platform.
This position combines product ownership, business analysis and technical collaboration, working closely with stakeholders, architects and development teams to deliver scalable and high-quality solutions.
Key Responsibilities
- Analyse business requirements and translate them into functional specifications and user stories
- Collaborate with business stakeholders to gather, validate and prioritise requirements
- Perform data analysis and contribute to the definition of target data models in collaboration with solution architects
- Act as Product Owner within an Agile/Scrum environment, managing and prioritising the product backlog
- Participate in Scrum ceremonies, including sprint planning, reviews and retrospectives
- Ensure appropriate documentation of product features, processes and requirements.
Required Skills & Experiences
- At least 5 years of experience in Product Management, Product Ownership or a similar role within software development environments.
- Proven ability to translate business requirements into technical solutions
- Experience working with Agile and Scrum methodologies
- Hands-on experience with SQL and data analysis
- Experience collaborating with development teams, architects and business stakeholders
- Excellent communication and stakeholder management skills.
Preferred Qualifications
- Bachelor's degree in Computer Science, Information Technology, Engineering or a related field
- Scrum Product Owner certification (CSPO, PSPO or equivalent
- Experience facilitating Scrum ceremonies
- Previous experience with ERP, billing, invoicing, finance or enterprise platforms
What We Offer
- An international and collaborative working environment
- Professional development and career growth opportunities
- A competitive remuneration package.
Senior Software Engineer (Rust / C++)
Remote (North America) | $220,000–$280,000 Base + Bonus + Equity
Build infrastructure where performance matters.
A well-funded, profitable infrastructure company is looking for a Performance Engineer to help build and optimize the systems powering millions of real-time requests every day.
This role is ideal for engineers who enjoy working close to the metal, solving complex systems problems, and optimizing software for speed, scalability, and reliability.
What You'll Do
- Design and optimize high-performance services using Rust and C++
- Reduce latency and improve throughput across production systems
- Profile applications and eliminate performance bottlenecks
- Build and maintain large-scale distributed systems
- Work on infrastructure that supports mission-critical applications
- Collaborate with a highly technical engineering team in a high-ownership environment
What We're Looking For
- 5+ years of software engineering experience
- Strong experience with Rust and/or C++
- Proven experience optimizing production systems
- Deep understanding of memory management, concurrency, networking, and systems performance
- Experience building or operating distributed systems at scale
Nice to Have
- Background in high-frequency trading or other low-latency environments
- Experience with database internals or storage engines
- Familiarity with RocksDB, ClickHouse, Postgres, or similar technologies
What You'll Get
- $240,000–$280,000 base salary (flexible for exceptional candidates)
- 15–20% performance bonus
- Meaningful equity package
- Fully remote across North American time zones
- Comprehensive medical, dental, and vision coverage
- Unlimited PTO
- Annual conference, learning, wellness, and home office stipends
- Regular team offsites and collaborative engineering culture
Why Join?
You'll be joining a small, high-caliber engineering team where ownership is encouraged and technical excellence is valued. The company builds the infrastructure that enables thousands of developers and businesses to build scalable, high-performance applications, with a focus on distributed systems, real-time data, and performance-critical services.
If you enjoy solving difficult engineering problems and want to have a direct impact on products operating at massive scale, this is an opportunity to work alongside experienced systems engineers in a fast-moving, remote-first environment.
We are currently searching for a SAP SuccessFactors Compensation Lead for a client of ours in Germany.
This is a freelance requirement - with an ideal start by the end of June.
Required Skills:
- Extensive experience in implementing SAP SF Compensation.
- International Project experience.
- Leading Workshops + Scoping.
- Fluency in German and English.
Unsure of your next step? Reach out.
At Lawrence Harvey, we recognise that navigating the job market can be daunting. Whether you're an experienced professional seeking a fresh challenge or starting your career, our team of dedicated tech recruitment specialists are here to assist you. With our vast network of industry contacts and thorough understanding of the tech landscape, we can offer guidance and support to help you discover the ideal opportunity.